CN121663283A - An automatic processing device for connecting wire harnesses - Google Patents
An automatic processing device for connecting wire harnessesInfo
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- CN121663283A CN121663283A CN202511877640.5A CN202511877640A CN121663283A CN 121663283 A CN121663283 A CN 121663283A CN 202511877640 A CN202511877640 A CN 202511877640A CN 121663283 A CN121663283 A CN 121663283A
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- frame
- transmission
- fixedly connected
- shaping
- feeding
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Abstract
本发明涉及连接线束加工技术领域，具体的是一种连接线束自动加工装置，本发明包括机架及集成于所述机架上的热缩管处理机构、线束上料机构和给进热缩机构；所述热缩管处理机构包括切断组件、上料组件及定形传动件，定形传动件含热缩套筒、对称设于热缩套筒内的直角定形板及驱动件，通过直角定形板对热缩管施加径向支撑力以维持圆形。本发明通过利用热缩管上料到位后的抵触力，同步驱动定形导杆带动直角定形板动作，实现上料即定形的协同效果，无需额外驱动源，就能为热缩管提供稳定径向支撑，既保证热缩管全程维持圆形，又不影响上料顺畅性，适配不同直径、壁厚热缩管的加工需求，摆脱了传统独立防扁塌结构的局限性。
This invention relates to the field of wire harness processing technology, specifically an automatic wire harness processing device. The invention includes a frame and a heat shrink tubing processing mechanism, a wire harness feeding mechanism, and a feeding heat shrink mechanism integrated on the frame. The heat shrink tubing processing mechanism includes a cutting component, a feeding component, and a shaping transmission component. The shaping transmission component includes a heat shrink sleeve, right-angle shaping plates symmetrically arranged within the heat shrink sleeve, and a driving component. The right-angle shaping plates apply radial support force to the heat shrink tubing to maintain its circular shape. This invention utilizes the resistance force after the heat shrink tubing is in place to simultaneously drive the shaping guide rod to move the right-angle shaping plate, achieving a synergistic effect of feeding and shaping simultaneously. It provides stable radial support for the heat shrink tubing without the need for an additional driving source, ensuring the heat shrink tubing maintains its circular shape throughout the process without affecting feeding smoothness. It adapts to the processing needs of heat shrink tubing with different diameters and wall thicknesses, overcoming the limitations of traditional independent anti-flattening structures.
Description
Technical Field
The invention relates to the technical field of connecting wire harness processing, in particular to an automatic processing device for a connecting wire harness.
Background
In the field of connecting wire harness processing, heat shrinkage pipe sleeving is a key procedure for guaranteeing wire harness insulation sealing, wear resistance and ageing resistance, and is particularly applied to the periphery of a connecting end of a connecting wire harness and a miniature terminal (such as a miniature plug-in sheet type, a flag-shaped barbed plug-in spring and a small bullet-shaped terminal) in the scenes of automobile precision electronic control, communication equipment, consumer electronics and the like, so that the terminal is small in size, the connecting end structure of the terminal and the wire harness is fragile, and insulation protection, reinforcement sealing and vibration resistance and drop resistance are realized by tightly wrapping a heat shrinkage pipe, and the connection reliability is ensured.
Along with the continuous improvement of requirements on wire harness processing efficiency and product consistency in the industry, the traditional heat shrinkage tube processing mode gradually exposes technical pain points with insufficient pertinence in the processing of the specific combination of the small terminal and the wire harness. The existing equipment is not designed aiming at the processing characteristics of the small-size connecting end, the feeding and shaping of the heat-shrinkable tube are completely disjointed, the cut heat-shrinkable tube is required to be manually transported or conveyed to an insertion station by an independent mechanism, the heat-shrinkable tube made of flexible materials is extremely easy to collapse due to extrusion or dead weight in the transportation or feeding process, in addition, in the insertion process, the existing feeding structure adopts a direct insertion mode, the mode has larger friction force due to surface contact, the insertion is easy to be blocked, and in addition, the blocking condition is more serious when the heat-shrinkable tube collapses. Not only causes low processing efficiency, but also influences the consistency of products due to multi-loop error superposition.
Disclosure of Invention
The invention aims to provide an automatic processing device for connecting wire harnesses, which solves the problems in the prior art.
The aim of the invention can be achieved by the following technical scheme:
The automatic processing device for the connecting wire harness preferably comprises a frame, a heat shrinkage tube processing mechanism, a wire harness feeding mechanism and a feeding heat shrinkage mechanism, wherein the heat shrinkage tube processing mechanism, the wire harness feeding mechanism and the feeding heat shrinkage mechanism are integrated on the frame;
the heat-shrinkable tube processing mechanism comprises a cutting assembly, a feeding assembly and a shaping transmission piece, wherein the shaping transmission piece comprises a heat-shrinkable sleeve, right-angle shaping plates and driving pieces which are symmetrically arranged in the heat-shrinkable sleeve, and radial supporting force is applied to the heat-shrinkable tube through the right-angle shaping plates so as to maintain a round shape;
the wire harness feeding mechanism comprises a U-shaped clamping jaw for bearing the wire harness and a positioning assembly, wherein the positioning assembly drives the U-shaped clamping jaw to drive the wire harness to move, so that the end part of the wire harness is coaxially aligned with a heat shrinkage tube of a feeding station;
the feeding heat shrinkage mechanism comprises a feeding assembly, an electric heating piece and a transmission assembly, wherein the feeding assembly comprises a spiral toothed bar, a spiral gear and a driving source, the wire harness is driven to reciprocate along the axial direction of the heat shrinkage tube by meshing the spiral toothed bar and the spiral gear, and meanwhile, the wire harness is driven to spirally rotate around the axis of the wire harness and is inserted into the heat shrinkage tube;
The electric heating piece corresponds to the feeding station, one end of the transmission assembly is fixed to the feeding assembly, and the other end of the transmission assembly is connected with the electric heating piece, so that the feeding assembly drives the electric heating piece to do reciprocating deflection motion along the periphery of the heat shrinkage tube.
Preferably, the cutting assembly comprises a first transmission rod hinged to one end of the frame, the tail end of the first transmission rod is rotationally connected with a lower compression roller, the middle section of the first transmission rod is fixedly connected with a tension spring, the other end of the tension spring is fixedly connected with the frame, one end of the frame is rotationally connected with a support roller, and the lower compression roller always abuts against the support roller through the tension spring;
One end of the frame is fixedly connected with a feeding motor, the output end of the feeding motor is fixedly connected with the supporting roller, the supporting roller is driven to rotate by the feeding motor, and the feeding motor is matched with the lower compression roller to convey the heat shrinkage tube;
One end fixedly connected with support sleeve of frame, support sleeve are located between backing roll and the pyrocondensation sleeve for draw the pyrocondensation pipe to accurately get into the pyrocondensation sleeve, the top fixedly connected with electricity push rod one of frame, the output fixedly connected with mounting panel of electricity push rod one, the one end symmetry fixedly connected with and the lift slide bar of frame sliding connection of mounting panel, the bottom of mounting panel is provided with cutting blade, drives the cutting blade through electricity push rod one and goes up and down, realizes that the pyrocondensation pipe cuts off.
Preferably, the feeding assembly comprises a guide slide bar symmetrically and slidably arranged at one end of the frame, a sequencing spring is sleeved on the periphery of the guide slide bar, the sequencing spring is arranged between the top of the frame and the end part of the guide slide bar, the guide slide bar is reset through the sequencing spring, and a limiting ring is arranged at the middle section of the guide slide bar and used for limiting the rebound stroke of the sequencing spring;
One end of the frame is provided with a lifting sliding groove along the axial direction of the lifting sliding rod, a lifting rack is arranged in the lifting sliding groove in a sliding manner, and one end of the lifting rack is fixedly connected with the cutting blade;
One end of the rack is fixedly connected with a fixed rack, the bottom of the mounting plate is rotationally connected with a lifting gear, and the lifting gear is in synchronous engagement with the fixed rack and the lifting rack;
When the mounting plate goes up and down, the lifting gear rolls along the fixed rack to drive the lifting rack to drive the cutting blade to slide in a reciprocating manner, so that automatic cutting and feeding of the heat shrinkage pipe are realized.
Preferably, the driving piece of the shaping transmission piece is a shaping guide rod, a shaping spring and a shaping contact rod;
The shaping guide rod is symmetrically and fixedly connected to the bottom of a right-angle shaping plate, the bottom of the shaping guide rod penetrates through the heat-shrinkable sleeve and extends downwards, a shaping spring is sleeved on the periphery of the shaping guide rod, the shaping spring is arranged between the bottom of the heat-shrinkable sleeve and the lower end of the shaping guide rod, one end of the frame is fixedly connected with a pair of shaping contact rods, the two shaping contact rods are symmetrically arranged on two sides of the electric heating piece, and the top of the shaping contact rod corresponds to the lower end of the shaping guide rod;
When the heat shrinkage pipe is fed to the target position, the lower end of the shaping guide rod is contacted with the top of the shaping contact rod, the shaping guide rod is pushed to move upwards, the right-angle shaping plate is driven to approach the heat shrinkage pipe, and shaping of the heat shrinkage pipe is achieved.
Preferably, the positioning assembly comprises an arc-surface supporting tool hinged to one end of the frame and corresponding to the feeding station, the arc-surface supporting tool is used for lifting and connecting the end part of the wire harness, a blanking groove is formed in the middle section of the frame, a conveying belt is arranged in the blanking groove, and the conveying belt is located below the arc-surface supporting tool and the U-shaped clamping jaw and used for conveying the wire harness subjected to machining.
Preferably, the positioning assembly further comprises a pair of synchronizing wheels rotatably connected to one end of the frame, a synchronizing belt is sleeved on the periphery of the two synchronizing wheels, one synchronizing wheel is coaxially fixed with the U-shaped clamping jaw, and the other synchronizing wheel is coaxially and fixedly connected with a first transmission gear;
The cambered surface holds in the palm the coaxial fixedly connected with drive gear II, and drive gear I and drive gear II synchromesh have drive rack, and the one end fixedly connected with electricity push rod II of frame, the output and the drive rack fixed connection of electricity push rod II drive the drive rack through electricity push rod II and remove, drive gear I, synchronizing wheel and rotate, realize U-shaped clamping jaw and cambered surface and hold in the palm the synchronous action of utensil, accomplish the material loading and the unloading to the pencil.
Preferably, the feeding assembly comprises a U-shaped sliding rod, a spiral toothed rod, a spiral gear and a three-jaw clamp;
The U-shaped sliding rod is arranged at one end of the frame in a sliding way and can move along the axial direction of the heat shrinkage tube, the middle section of the U-shaped sliding rod is rotationally connected with a spiral toothed bar, one end of the frame is symmetrically rotationally connected with spiral gears, and the spiral toothed bar is synchronously meshed with the two spiral gears;
One end of the spiral toothed bar penetrates through the U-shaped sliding bar and is fixedly connected with a three-jaw clamp, the three-jaw clamp is used for clamping and connecting a wire harness, and the wire harness is driven to rotate around the axis of the wire harness through rotation of the spiral toothed bar.
Preferably, the driving source of the feeding assembly comprises a driven gear, a speed reducer, a driving gear and a feeding motor;
the driven gears are fixedly connected to the bottoms of the spiral gears, the bottom of the rack is fixedly connected with a speed reducer, and the output end of the speed reducer penetrates through the rack and is fixedly connected with a driving gear which is synchronously meshed with the two driven gears;
the input end of the speed reducer is fixedly connected with a feeding motor, and the driving gear is driven to rotate by the feeding motor to drive the driven gear, the spiral gear and the spiral toothed bar to be linked, so that the axial feeding and the rotation of the wire harness are synchronously performed.
Preferably, the transmission assembly comprises an arc-shaped supporting seat, a U-shaped frame, a transmission disc, an eccentric column and a force-accumulating torsion spring;
The arc-shaped supporting seat is fixedly connected to one end of the frame, arc-shaped through grooves are symmetrically formed in the top of the frame, the track of each arc-shaped through groove is matched with the peripheral outline of the electric heating piece, the bottom of the electric heating piece is fixedly connected with a U-shaped frame, and the bottom of the U-shaped frame penetrates through each arc-shaped through groove and is provided with a through hole;
one end of the frame is rotatably connected with a transmission disc, the top of the transmission disc is eccentrically provided with an eccentric column, the eccentric column penetrates through the through hole, and one end of the frame is provided with a force-accumulating torsion spring;
When the transmission disc rotates, the eccentric column slides along the through hole and drives the U-shaped frame to reciprocate along the arc-shaped through groove, so that the electric heating element is arranged outside the heat shrinkage tube Zhou Pianzhuai;
a unidirectional transmission assembly is arranged between the transmission disc and the power storage gear, the unidirectional transmission assembly comprises a ratchet wheel fixed at the shaft end of the transmission disc, a pawl hinged to the rack and an elastic piece, the elastic piece drives the pawl to be attached to the tooth surface of the ratchet wheel, one end of the power storage torsion spring is fixed to the ratchet wheel, and the other end of the power storage torsion spring is fixed to the rack;
When the force is stored, the force storage gear rotates positively and drives the ratchet wheel and the transmission disc to rotate through the pawl, so that the force storage torsion spring stores the force, and when the force storage gear resets, the force storage gear rotates reversely, the pawl slides along the ratchet wheel tooth surface, and the ratchet wheel and the force storage torsion spring are static and do not store the force reversely.
Preferably, the transmission assembly further comprises a power storage gear, a power storage rack, a transmission inclined rail, a feeding rod and a transmission inserted rod;
the power storage gear is fixedly connected to the shaft end of the transmission disc, one end of the rack is provided with a power storage slide rail, and the top of the power storage slide rail is slidably provided with a power storage rack meshed with the power storage gear;
one end fixedly connected with transmission inclined rail of power rack, the one end fixedly connected with of U-shaped slide bar is given the pole, and the bottom fixedly connected with transmission inserted bar of giving the pole, transmission inserted bar extends to the inside of transmission inclined rail.
The invention has the beneficial effects that:
1. According to the invention, the right-angle shaping plate is driven to act by synchronously driving the shaping guide rod by utilizing the collision force of the heat shrink tube after feeding in place, so that the synergistic effect of feeding, namely shaping, is realized, and a stable radial support can be provided for the heat shrink tube without an additional driving source, so that the heat shrink tube is ensured to maintain a round shape in the whole process, the feeding smoothness is not influenced, the processing requirements of heat shrink tubes with different diameters and wall thicknesses are met, and the limitation of the traditional independent anti-collapse structure is eliminated.
2. According to the invention, through structures such as the synchronous wheel, the transmission rack and the like, the wire harness positioning and inserting actions are accurately coordinated, and after the positioning assembly is used for Ji Resu pipes, the feeding assembly immediately starts a spiral feeding mode of axial pushing and autorotation, so that the traditional linear inserted surface contact is converted into the linear contact, the insertion resistance is reduced, the clamping scratch is avoided, the wire harness is fully attached to the inner wall of the heat shrinkage pipe through autorotation, and a foundation is laid for high-quality heat shrinkage.
3. According to the invention, the linkage coordination of wire harness insertion and thermal shrinkage heating is realized by means of the ratchet pawl unidirectional transmission assembly, the heating element is synchronously driven to deflect and store force in the insertion process, the unidirectional structure avoids the reverse force storage offset of the torsion spring during resetting, and after the wire harness is completely inserted, the torsion spring releases the force storage to drive the heating element to reciprocate along the periphery of the thermal shrinkage tube, so that the heating area is increased, and the problems of uneven shrinkage, wrinkles, bubbles and the like caused by fixed heating are effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the mounting positions of the back-up roll and the lower pressure roll in the present invention;
FIG. 3 is a schematic view of the installation positions of the heat shrink sleeve and the arc-shaped supporting seat in the invention;
FIG. 4 is a schematic diagram of the connection relationship between a lifting gear and a fixed rack and between the lifting gear and the fixed rack;
FIG. 5 is an exploded view of the connection between the electric heating element and the arc-shaped supporting seat and the driving disk in the invention;
FIG. 6 is a schematic diagram of the installation positions of the three-jaw clamp, the U-shaped clamping jaw and the cambered surface support;
FIG. 7 is a schematic perspective view of a positioning assembly according to the present invention;
Fig. 8 is a schematic perspective view of the feeding assembly of the present invention.
The reference numerals in the figure are as follows, 1, the frame; 2, a heat shrinkage sleeve, 3, a right-angle shaping plate, 4, a U-shaped clamping jaw, 5, an electric heating part, 6, a transmission rod I, 7, a lower pressing roller, 8, a tension spring, 9, a supporting roller, 10, a feeding motor, 11, a supporting sleeve, 12, a first electric push rod, 13, a mounting plate, 14, a lifting slide rod, 15, a cutting clamp, 16, a guiding slide rod, 17, a sequencing spring, 18, a limiting ring, 19, a lifting slide groove, 20, a lifting rack, 21, a fixed rack, 22, a lifting gear, 23, a shaping guide rod, 24, a shaping spring, 25, a shaping contact rod, 26, an arc-shaped support, 27, a synchronous wheel, 28, a synchronous belt, 29, a transmission gear I, 30, a transmission gear II, 31, a transmission rack, 32, an electric push rod II, 33, a lower trough, 34, a conveying belt, 35, a U-shaped slide rod, 36, a spiral tooth bar, 37, a spiral gear, 38, a three-jaw clamp, 39, a driven gear, 40, a speed reducer, 41, a driving gear, 42, a feeding motor, 43, an arc-shaped support seat, 44, a through groove, 45, a U-shaped support, a bracket, a 27, a synchronous pulley, a synchronous belt, a transmission gear, a transmission rod, a transmission gear, a power storage disc, a transmission groove, a 50, a power storage disc, a transmission groove, a 55.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An automatic processing device for a connecting wire harness belongs to accurate automatic processing equipment in the technical field of connecting wire harness processing, is specially used for preventing flat collapse, low-resistance insertion and uniform heat shrinkage collaborative operation in the sleeving process of a connecting wire harness heat shrinkage tube, and integrates the synchronous adaptation functions of procedure linkage-spiral feeding integrated linkage and unidirectional power storage-reverse offset prevention.
1-8, Comprises a frame 1, a heat shrinkage tube processing mechanism, a wire harness feeding mechanism and a feeding heat shrinkage mechanism, wherein the heat shrinkage tube processing mechanism, the wire harness feeding mechanism and the feeding heat shrinkage mechanism are integrated on the frame 1;
The heat shrinkage tube treatment mechanism comprises a cutting assembly, a feeding assembly and a shaping transmission piece, wherein the shaping transmission piece comprises a heat shrinkage sleeve 2, right-angle shaping plates 3 symmetrically arranged in the heat shrinkage sleeve 2 and a driving piece, and radial supporting force is applied to the heat shrinkage tube through the right-angle shaping plates 3 so as to maintain a round shape;
The wire harness feeding mechanism comprises a U-shaped clamping jaw 4 for bearing the wire harness and a positioning assembly, wherein the positioning assembly drives the U-shaped clamping jaw 4 to drive the wire harness to move, so that the end part of the wire harness is coaxially aligned with a heat shrinkage tube of a feeding station;
The feeding heat shrinkage mechanism comprises a feeding component, an electric heating part 5 and a transmission component, wherein the feeding component comprises a spiral toothed bar 36, a spiral gear 37 and a driving source, the wire harness is meshed with the spiral toothed bar 36 and the spiral gear 37 to drive the wire harness to reciprocate along the axial direction of the heat shrinkage pipe, and meanwhile, the wire harness is driven to spirally rotate around the axis of the wire harness and insert into the heat shrinkage pipe;
the electric heating element 5 corresponds to the feeding station, one end of the transmission assembly is fixed on the feeding assembly, and the other end of the transmission assembly is connected with the electric heating element 5, so that the feeding assembly drives the electric heating element 5 to do reciprocating deflection motion along the periphery of the heat shrinkage tube;
The cutting assembly comprises a first transmission rod 6 hinged to one end of the frame 1, the tail end of the first transmission rod 6 is rotationally connected with a lower compression roller 7, the middle section of the first transmission rod 6 is fixedly connected with a tension spring 8, the other end of the tension spring 8 is fixedly connected with the frame 1, one end of the frame 1 is rotationally connected with a support roller 9, and the lower compression roller 7 always abuts against the support roller 9 through the tension spring 8;
One end of the frame 1 is fixedly connected with a feeding motor 10, the output end of the feeding motor 10 is fixedly connected with a supporting roller 9, the supporting roller 9 is driven to rotate by the feeding motor 10, and the feeding motor is matched with the lower compression roller 7 to convey the heat shrinkage pipe;
One end of the frame 1 is fixedly connected with a supporting sleeve 11, the supporting sleeve 11 is positioned between the supporting roller 9 and the heat shrinkage sleeve 2 and is used for guiding the heat shrinkage pipe to accurately enter the heat shrinkage sleeve 2, the top of the frame 1 is fixedly connected with an electric push rod I12, the output end of the electric push rod I12 is fixedly connected with a mounting plate 13, one end of the mounting plate 13 is symmetrically and fixedly connected with a lifting slide rod 14 which is in sliding connection with the frame 1, the bottom of the mounting plate 13 is provided with a cutting blade 15, and the electric push rod I12 drives the mounting plate 13 to drive the cutting blade 15 to lift so as to cut off the heat shrinkage pipe;
The feeding assembly comprises a guide slide bar 16 symmetrically and slidably arranged at one end of the frame 1, a sequencing spring 17 is sleeved on the periphery of the guide slide bar 16, the sequencing spring 17 is arranged between the top of the frame 1 and the end part of the guide slide bar 16, the guide slide bar 16 is reset through the sequencing spring 17, and a limiting ring 18 is arranged at the middle section of the guide slide bar 16 and used for limiting the rebound stroke of the sequencing spring 17;
A lifting sliding groove 19 is formed in one end of the frame 1 along the axial direction of the lifting sliding rod 14, a lifting rack 20 is slidably arranged in the lifting sliding groove 19, and one end of the lifting rack 20 is fixedly connected with the cutting blade 15;
one end of the frame 1 is fixedly connected with a fixed rack 21, the bottom of the mounting plate 13 is rotatably connected with a lifting gear 22, and the lifting gear 22 is synchronously meshed with the fixed rack 21 and the lifting rack 20;
When the mounting plate 13 is lifted, the lifting gear 22 rolls along the fixed rack 21 to drive the lifting rack 20 to drive the cutting blade 15 to slide in a reciprocating manner, so that automatic cutting and feeding of the heat-shrinkable tube are realized;
the driving parts of the shaping transmission part are a shaping guide rod 23, a shaping spring 24 and a shaping contact rod 25;
The shaping guide rod 23 is symmetrically and fixedly connected to the bottom of one right-angle shaping plate 3, the bottom of the shaping guide rod 23 penetrates through the heat-shrinkable sleeve 2 and extends downwards, the periphery of the shaping guide rod is sleeved with a shaping spring 24, the shaping spring 24 is arranged between the bottom of the heat-shrinkable sleeve 2 and the lower end of the shaping guide rod 23, one end of the frame 1 is fixedly connected with a pair of shaping contact rods 25, the two shaping contact rods 25 are symmetrically arranged on two sides of the electric heating piece 5, and the top of the shaping contact rod 25 corresponds to the lower end of the shaping guide rod 23;
When the heat shrinkage pipe is fed to the target position, the lower end of the shaping guide rod 23 is contacted with the top of the shaping contact rod 25, the shaping guide rod 23 is pushed to move upwards, and the right-angle shaping plate 3 is driven to approach the heat shrinkage pipe, so that the shaping of the heat shrinkage pipe is realized;
The positioning assembly comprises an arc-surface supporting tool 26 hinged to one end of the frame 1, corresponds to the feeding station and is used for lifting and connecting the end part of the wire harness, a blanking groove 33 is formed in the middle section of the frame 1, a conveying belt 34 is arranged in the blanking groove 33, and the conveying belt 34 is positioned below the arc-surface supporting tool 26 and the U-shaped clamping jaw 4 and is used for conveying the wire harness after processing;
The positioning assembly further comprises a pair of synchronizing wheels 27 rotatably connected to one end of the frame 1, a synchronizing belt 28 is sleeved on the periphery of each synchronizing wheel 27, one synchronizing wheel 27 is coaxially fixed with the U-shaped clamping jaw 4, and the other synchronizing wheel 27 is coaxially and fixedly connected with a transmission gear I29;
the cambered surface support 26 is coaxially and fixedly connected with a transmission gear II 30, a transmission rack 31 is synchronously meshed between the transmission gear I29 and the transmission gear II 30, one end of the rack 1 is fixedly connected with an electric push rod II 32, the output end of the electric push rod II 32 is fixedly connected with the transmission rack 31, the transmission rack 31 is driven to move through the electric push rod II 32, the transmission gear I29 and the synchronous wheel 27 are driven to rotate, the synchronous action of the U-shaped clamping jaw 4 and the cambered surface support 26 is realized, and the feeding and the discharging of the wire harness are completed;
The feeding assembly comprises a U-shaped slide rod 35, a spiral toothed rod 36, a spiral gear 37 and a three-jaw clamp 38;
the U-shaped slide bar 35 is arranged at one end of the frame 1 in a sliding way and can move along the axial direction of the heat shrinkage tube, the middle section of the U-shaped slide bar 35 is rotationally connected with a spiral toothed bar 36, one end of the frame 1 is symmetrically rotationally connected with a spiral gear 37, and the spiral toothed bar 36 is synchronously meshed with the two spiral gears 37;
One end of the spiral toothed bar 36 passes through the U-shaped sliding bar 35 and is fixedly connected with a three-jaw clamp 38, the three-jaw clamp 38 is used for clamping and connecting a wire harness, and the wire harness is driven to rotate around the axis of the wire harness by the rotation of the spiral toothed bar 36;
The driving source of the feeding assembly comprises a driven gear 39, a speed reducer 40, a driving gear 41 and a feeding motor 42;
the driven gears 39 are fixedly connected to the bottom of the spiral gears 37, a speed reducer 40 is fixedly connected to the bottom of the frame 1, and the output end of the speed reducer 40 penetrates through the frame 1 and is fixedly connected with a driving gear 41 which is synchronously meshed with the two driven gears 39;
The input end of the speed reducer 40 is fixedly connected with a feeding motor 42, and the driving gear 41 is driven to rotate by the feeding motor 42 to drive the driven gear 39, the spiral gear 37 and the spiral toothed bar 36 to be in linkage so as to realize synchronous axial feeding and autorotation of the wire harness;
The transmission assembly comprises an arc-shaped supporting seat 43, a U-shaped frame 45, a transmission disc 47, an eccentric column 48 and a force storage torsion spring 49;
the arc-shaped supporting seat 43 is fixedly connected to one end of the frame 1, arc-shaped through grooves 44 are symmetrically formed in the top of the frame, the track of each arc-shaped through groove 44 is matched with the peripheral outline of the electric heating element 5, the bottom of the electric heating element 5 is fixedly connected with a U-shaped frame 45, and the bottom of the U-shaped frame 45 penetrates through each arc-shaped through groove 44 and is provided with a through hole 46;
One end of the frame 1 is rotatably connected with a transmission disc 47, the top of the transmission disc 47 is eccentrically provided with an eccentric column 48, the eccentric column 48 is arranged inside the through hole 46 in a penetrating way, and one end of the frame 1 is provided with a force-accumulating torsion spring 49;
A unidirectional transmission assembly is arranged between the transmission disc 47 and the power storage gear 50, and comprises a ratchet wheel fixed at the shaft end of the transmission disc 47, a pawl hinged to the frame 1 and an elastic piece, wherein the elastic piece drives the pawl to be attached to the tooth surface of the ratchet wheel, one end of the power storage torsion spring 49 is fixed on the ratchet wheel, and the other end is fixed on the frame 1;
The transmission assembly further comprises a power storage gear 50, a power storage rack 52, a transmission inclined rail 53, a feed rod 54 and a transmission inserted link 55;
The power storage gear 50 is fixedly connected to the shaft end of the transmission disc 47, one end of the frame 1 is provided with a power storage slide rail 51, and the top of the power storage slide rail 51 is slidably provided with a power storage rack 52 meshed with the power storage gear 50;
one end of the power storage rack 52 is fixedly connected with a transmission inclined rail 53, one end of the U-shaped slide rod 35 is fixedly connected with a feeding rod 54, the bottom of the feeding rod 54 is fixedly connected with a transmission inserted rod 55, and the transmission inserted rod 55 extends into the transmission inclined rail 53;
When the U-shaped slide bar 35 axially moves, the transmission inserted link 55 slides along the transmission inclined rail 53, drives the transmission inclined rail 53 and the power storage rack 52 to move, drives the power storage gear 50 and the transmission disc 47 to rotate, and realizes the linkage of the feeding assembly and the electric heating element 5.
When the heat shrinkage tube processing flow is used, a feeding motor 10 drives a supporting roller 9 to rotate, a lower pressing roller 7 preloaded by a tension spring 8 is matched to form clamping force, and after the heat shrinkage tube is guided and conveyed to a preset length along a supporting sleeve 11, the feeding motor 10 is suspended;
Then the first electric push rod 12 is started to push the mounting plate 13 to drive the lifting gear 22 to roll along the fixed rack 21, and the lifting gear 22 is meshed with the lifting rack 20 at the same time to drive the cutting blade 15 to move downwards in double strokes, so that a height difference is formed before the heat shrinkage sleeve 2 reaches the lower part of the feeding station, and the heat shrinkage pipe is accurately cut off;
After cutting, the mounting plate 13 continuously moves downwards to abut against the heat shrinkage sleeve 2 to push the heat shrinkage sleeve to move downwards to a feeding station along the guide slide bar 16, and meanwhile, the guide slide bar 16 extrudes the sequencing spring 17 to store force so as to coaxially align the heat shrinkage tube with the feeding station;
At this time, the heat shrinkage tube triggers the shaping transmission piece to act, the lower end of the shaping guide rod 23 is abutted against the shaping abutting rod 25, the elasticity of the shaping spring 24 is overcome to move upwards, the right-angle shaping plate 3 is driven to approach the heat shrinkage tube axis, the shaping guide rod 23 is pushed to move upwards against the elasticity of the shaping spring 24, the shaping guide rod 23 is fixedly connected with one right-angle shaping plate 3, and then the right-angle shaping plate 3 is synchronously driven to approach the other right-angle shaping plate 3, so that the right-angle shaping plate 3 is gradually abutted against the heat shrinkage tube axis, radial supporting force is applied together through the two symmetrically arranged right-angle shaping plates 3, so that the periphery of the heat shrinkage tube and the inner four sides of the two right-angle shaping plates 3 form extrusion abutting, and the heat shrinkage tube is extruded to always maintain a round shape, and subsequent wire harness insertion due to flat collapse is avoided;
after the heat shrinkage tube is shaped, the wire harness feeding mechanism is started, a mechanical arm puts the wire harness into the U-shaped clamping jaw 4, the electric push rod II 32 drives the transmission rack 31 to move, and the transmission gear I29 and the transmission gear II 30 are synchronously meshed to rotate;
The first transmission gear 29 drives the U-shaped clamping jaw 4 to rotate 90 degrees through the synchronizing wheel 27 and the synchronizing belt 28, the second transmission gear 30 drives the cambered surface supporting tool 26 to turn over, the end part of the wire harness clamped by the U-shaped clamping jaw 4 is transferred to the three-jaw clamp 38, the three-jaw clamp 38 clamps the wire harness after the wire harness is kept coaxially aligned with the heat shrinkage tube, the U-shaped clamping jaw 4 is loosened, and the cambered surface supporting tool 26 lifts one end of the wire harness connected with the terminal to prevent sagging and offset;
The feeding motor 42 drives the driving gear 41 to rotate through the speed reducer 40, the driven gears 39 on two sides are meshed to drive the spiral gear 37 to rotate, the spiral gear 37 is meshed with the spiral toothed bar 36, the rotation motion is converted into the composite motion of axial movement and autorotation, the three-jaw clamp 38 clamps the wire harness to push along the axial direction of the heat shrinkage tube at a uniform speed, and simultaneously the wire harness rotates spirally around the axis of the three-jaw clamp, so that one end of the wire harness connected with the terminal is stably inserted into the heat shrinkage tube, the insertion resistance is reduced, and the tight fitting is ensured;
In the wire harness feeding process, the U-shaped slide rod 35 synchronously moves axially to drive the feeding rod 54 and the transmission inserting rod 55 to be embedded into the chute of the transmission inclined rail 53, the axial movement is converted into transverse sliding of the power storage rack 52, the power storage rack 52 is meshed with the power storage gear 50 to drive the transmission disc 47 to rotate, and the eccentric column 48 drives the electric heating part 5 to deflect reciprocally along the arc-shaped through groove 44;
At this time, the ratchet and pawl structure between the driving disc 47 and the power storage gear 50 plays a role, and when the power storage gear 50 rotates forward, the pawl is clamped into the tooth space of the ratchet wheel to drive the ratchet wheel to rotate synchronously and twist the power storage torsion spring 49 to store power;
When the wire harness and the terminal connecting end are completely inserted into the heat shrinkage sleeve 2, the force accumulation rack 52 is disengaged from the force accumulation gear 50, the force accumulation torsion spring 49 releases the force accumulation to drive the U-shaped frame 45 and the electric heating element 5to rapidly and reciprocally deflect along the arc-shaped through groove 44 of the arc-shaped supporting seat 43, at the moment, the electric heating element 5 continuously heats, the heating coverage area of the periphery of the heat shrinkage tube is enlarged through reciprocal deflection, the uniform heating of the heat shrinkage sleeve 2 and the wire harness is realized, and the heat shrinkage tube fully contracts and tightly wraps the wire harness;
After the thermal shrinkage is finished, the components are reset in sequence, namely the first electric push rod 12 is reversely started to drive the cutting blade 15 to reset with the mounting plate 13, the sequencing spring 17 is pushed to rebound to guide the slide rod 16 to reset with the thermal shrinkage sleeve 2, and the limiting ring 18 limits the rebound stroke to ensure that the thermal shrinkage sleeve 2 and the supporting sleeve 11 are coaxial;
the feeding motor 42 rotates reversely to drive the spiral toothed bar 36 and the three-jaw clamp 38 to reset, the U-shaped sliding bar 35 drives the transmission inserted bar 55 to slide reversely to enable the power storage rack 52 to be meshed with the power storage gear 50 again, at the moment, the power storage gear 50 rotates reversely, the pawl slides along the gentle surface of the ratchet wheel to be separated, the ratchet wheel and the power storage torsion spring 49 are static and do not store reverse power, and the electric heating element 5 and the right-angle shaping plate 3 are reset under the action of the torsion spring release and shaping spring 24 respectively;
finally, the three-jaw clamp 38 loosens the wire harness, the electric push rod II 32 contracts to drive the transmission rack 31 to move reversely, the U-shaped clamping jaw 4 and the cambered surface support 26 are driven to reset, the machined wire harness falls into the conveying belt 34 in the blanking groove 33, and the wire harness is conveyed to the next process, so that single machining cycle is completed.
The invention provides an automatic processing device for connecting wire harnesses, which has the following working principle:
firstly, a feeding motor 10 is started, a supporting roller 9 is driven to rotate, a lower pressing roller 7 under the action of the pretightening force of a tension spring 8 is matched to form stable clamping conveying force, a heat shrinkage pipe is conveyed to the side of a heat shrinkage sleeve 2 along the guiding direction of a supporting sleeve 11 to a preset processing length, and a subsequent cutting procedure is prepared;
Then, the first electric push rod 12 is started, the mounting plate 13 is pushed to synchronously drive the lifting gear 22 to roll along the fixed rack 21, and as the lifting gear 22 is synchronously meshed with the lifting rack 20 and the fixed rack 21, the lifting rack 20 and the cutting blade 15 fixedly connected with the lifting gear 22 are driven to synchronously descend by double strokes of the lifting gear 22, so that the cutting blade 15 moves downwards below the feeding station in advance of the heat-shrinkable sleeve 2, a height difference is formed between the feeding station and the heat-shrinkable sleeve 2 rapidly, and the cutting operation of the heat-shrinkable tube is completed through the accurate lifting action of the cutting blade 15;
In the cutting process, along with the completion of the cutting of the heat-shrinkable tube by the cutting blade 15, the first electric push rod 12 synchronously drives the mounting plate 13 to form interference with the top of the heat-shrinkable sleeve 2 along the guiding direction of the guiding slide rod 16 and pushes the heat-shrinkable sleeve 2 to move downwards to the feeding station along the guiding direction of the guiding slide rod 16, meanwhile, the mounting plate 13 pushes the heat-shrinkable sleeve 2 to drive the guiding slide rod 16 to move downwards, so that the guiding slide rod 16 extrudes the sequencing spring 17 to generate shrinkage deformation, the sequencing spring 17 synchronously completes the power accumulation, and at the moment, the heat-shrinkable sleeve 2 drives the cut heat-shrinkable tube to be aligned with the feeding station accurately and coaxially;
When the heat shrinkage tube reaches a target station, the lower end of the shaping guide rod 23 is mutually abutted against the shaping abutting rod 25, the shaping guide rod 23 is pushed to overcome the elastic force of the shaping spring 24 to move upwards, and the shaping guide rod 23 is fixedly connected with one right-angle shaping plate 3, so that the right-angle shaping plate 3 is synchronously driven to approach to the other right-angle shaping plate 3, the right-angle shaping plate 3 is gradually abutted to the axial direction of the heat shrinkage tube, and radial supporting force is applied by the two symmetrically arranged right-angle shaping plates 3 together, so that the heat shrinkage tube is ensured to always maintain a circular shape, and the influence of flat collapse on the subsequent wire harness insertion is avoided;
Then, the manipulator places the connecting wire harness in the U-shaped clamping jaw 4, starts the electric push rod II 32 to drive the transmission rack 31 to transversely move, simultaneously meshes to drive the transmission gear I29 and the transmission gear II 30 to synchronously rotate, the transmission gear I29 forms linkage with the synchronous belt 28 through the synchronous wheel 27 to drive the U-shaped clamping jaw 4 to rotate 90 degrees around the shaft end, and the transmission gear II 30 drives the cambered surface support 26 to synchronously overturn for adjusting the angle so that the U-shaped clamping jaw 4 is coaxially aligned with the heat shrinkage tube in the heat shrinkage sleeve 2;
Then, the U-shaped clamping jaw 4 clamps the end of the wire harness and transfers the wire harness to the clamping end of the three-jaw clamp 38, the coaxial state of the wire harness and the heat shrinkage pipe in the heat shrinkage sleeve 2 is kept, then the three-jaw clamp 38 is controlled to finish stable clamping of one end of the wire harness, meanwhile, the U-shaped clamping jaw 4 releases clamping of the wire harness, at the moment, the other end of the wire harness is arranged in the cambered surface support 26, the cambered surface support 26 lifts one end, connected with a terminal, of the wire harness in an initial state, and deflection of the wire harness caused by sagging is effectively avoided;
Then, the feeding motor 42 is started, the driving gear 41 is driven to rotate after being decelerated by the speed reducer 40, the driving gear 41 is meshed to drive the driven gears 39 on two sides to synchronously rotate, the driven gears 39 are coaxially fixed with the spiral gear 37, the spiral gear 37 is further driven to rotate, the spiral gear 37 is meshed with the spiral toothed bar 36, and the rotary motion is converted into the composite motion of axial movement and autorotation;
At this time, the three-jaw clamp 38 firmly clamps the wire harness, and the wire harness is driven by the spiral toothed bar 36 to push along the axial direction of the heat shrinkage tube at a uniform speed and simultaneously spirally rotates around the axis of the wire harness, so that one end of the wire harness, which is connected with the terminal, is stably inserted into the heat shrinkage tube, the insertion resistance is reduced, and the wire harness is tightly attached to the inner wall of the heat shrinkage tube;
in the wire harness feeding process, the U-shaped slide rod 35 moves synchronously and axially along with the spiral toothed bar 36, so that the feeding rod 54 and the transmission inserted rod 55 at the bottom are driven to move synchronously, the transmission inserted rod 55 is embedded into a chute of the transmission inclined rail 53, the axial movement is converted into the transverse movement of the transmission inclined rail 53, and the power storage rack 52 is driven to slide stably along the power storage slide rail 51;
At this time, the power storage rack 52 is meshed with the power storage gear 50 to drive the transmission disc 47 to rotate, and the eccentric column 48 at the top of the transmission disc 47 slides along the through hole 46 of the U-shaped frame 45 to drive the U-shaped frame 45 and the electric heating element 5 to reciprocate along the arc-shaped through groove 44 of the arc-shaped supporting seat 43;
Because a ratchet and pawl unidirectional transmission structure is arranged between the transmission disc 47 and the power storage gear 50, when the power storage gear 50 rotates positively, a pawl is clamped into a tooth socket of the ratchet wheel to drive the ratchet wheel and the transmission disc 47 to rotate synchronously, and meanwhile, the ratchet wheel rotates to stretch and twist the power storage torsion spring 49 to finish the power storage action;
Because the tooth end meshing length of the power storage rack 52 is preset to be a fixed value, when the wire harness and the terminal connecting end are completely inserted into the heat shrinkage sleeve 2 according to the preset length, the meshing relationship between the power storage rack 52 and the power storage gear 50 is stopped and separated, the power storage torsion spring 49 releases the stored power before, drives the U-shaped frame 45 and the electric heating element 5 to rapidly and reciprocally deflect along the arc-shaped through groove 44 of the arc-shaped supporting seat 43, and at the moment, the electric heating element 5 continuously heats, and the heating coverage area of the periphery of the heat shrinkage tube is enlarged through reciprocal deflection, so that the heat shrinkage sleeve 2 and the wire harness are uniformly heated, and the heat shrinkage tube is fully shrunk and tightly wraps the wire harness;
After the machining is finished, the first electric push rod 12 is reversely started to drive the lifting gear 22 to reversely roll, and then the lifting rack 20 and the fixedly connected cutting blade 15 are driven to synchronously move upwards by double strokes of the lifting gear 22, so that the cutting blade 15 is reset in one step before the heat-shrinkable sleeve 2, simultaneously, along with the reverse reset of the mounting plate 13, the power accumulating stroke before the release of the sequencing spring 17 generates rebound deformation, the guide slide rod 16 is pushed to drive the heat-shrinkable sleeve 2 to reset, the rebound stroke of the sequencing spring 17 is limited by the limiting ring 18, and the accurate coaxial alignment between the heat-shrinkable sleeve 2 and the supporting sleeve 11 is ensured after the reset;
After the thermal shrinkage process is finished, the feeding motor 42 is reversed to drive the spiral toothed bar 36 and the three-jaw clamp 38 to reversely move and reset, meanwhile, the U-shaped sliding bar 35 drives the transmission inserted bar 55 to reversely slide to drive the power storage rack 52 to be meshed with the power storage gear 50 again, when the power storage gear 50 reversely rotates, the tooth surface of the power storage rack pushes the smooth surface of the pawl, the pawl swings around the hinging point and is separated from the ratchet wheel tooth groove, the ratchet wheel and the power storage torsion spring 49 do not reversely rotate along with the power storage gear 50, only the power storage gear 50 idles, and the power storage torsion spring 49 does not reversely store power;
Meanwhile, the U-shaped slide bar 35 drives the three-jaw clamp 38 to reset completely, the electric heating element 5 is restored to the initial position after the release of the force-accumulating torsion spring 49 is completed, the shaping guide rod 23 resets under the action of the shaping spring 24, the right-angle shaping plate 3 synchronously loosens the heat shrinkage tube and returns to the initial state, and the next processing cycle is waited;
Finally, the three-jaw clamp 38 is controlled to release the clamping of the wire harness after the machining is finished, the electric push rod II 32 is started to shrink, the transmission rack 31 is driven to move reversely, the U-shaped clamping jaw 4 is driven to reversely reset around the hinge shaft, the cambered surface support 26 is driven to reversely reset at the same time, in the overturning process of the cambered surface support 26, the wire harness after the machining is driven to fall onto the conveying belt 34 in the blanking groove 33, the conveying belt 34 conveys the finished wire harness to the next process, and the single machining cycle is completed.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511877640.5A CN121663283A (en) | 2025-12-12 | 2025-12-12 | An automatic processing device for connecting wire harnesses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511877640.5A CN121663283A (en) | 2025-12-12 | 2025-12-12 | An automatic processing device for connecting wire harnesses |
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| Publication Number | Publication Date |
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| CN121663283A true CN121663283A (en) | 2026-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511877640.5A Pending CN121663283A (en) | 2025-12-12 | 2025-12-12 | An automatic processing device for connecting wire harnesses |
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| Country | Link |
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| CN (1) | CN121663283A (en) |
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- 2025-12-12 CN CN202511877640.5A patent/CN121663283A/en active Pending
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