CN113183473B

CN113183473B - Crimping tool with lightweight jaw

Info

Publication number: CN113183473B
Application number: CN202110420248.3A
Authority: CN
Inventors: 彭鹏; 贺有才; 刘祖刚
Original assignee: Chongqing Juyuan Alo New Material Development Co ltd
Current assignee: Chongqing Juyuan Alo New Material Development Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2022-08-30
Anticipated expiration: 2041-04-19
Also published as: CN113183473A

Abstract

The invention relates to the technical field of crimping pliers, and discloses a crimping tool with a light-weight jaw, including a hydraulic tool and a heating device. The hydraulic tool includes a hydraulic cylinder, a guide rod, an upper clamp and a lower clamp. The hydraulic cylinder is perpendicular to The top surface of the upper clamp, the guide rod runs through the upper clamp to the top surface of the lower clamp, the guide rod is inserted into the front end of the hydraulic cylinder, the upper clamp is located above the lower clamp, the bottom end of the lower clamp is provided with a support seat, and the upper clamp and the inner side of the front end of the lower clamp are connected. A heating device is installed, and thrusters are installed on both sides of the hydraulic tool. The thrusters include a retaining ring, a cutting surface push block, a cutting surface top block and a return spring. , the front end of the cutting face top block is connected to the rear end of the cutting face pushing block. The crimping tool with light-weight jaws is provided with pushers at both ends of the hydraulic tool, and the pushers are used to press inwardly, so that the fixed pipe can be pressed inward, and the pipe that is being butted can be crimped. .

Description

Crimping tool with lightweight jaw

Technical Field

The invention relates to the technical field of crimping pliers, in particular to a crimping tool with a light jaw.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

Pipes are common components in transportation systems for transporting fluids such as water, oil, etc. In joining pipe fittings, a crimping tool is often used to crimp and lock the pipe fitting interface. In order to ensure the reliability and/or the sealing performance of the pipe fitting connection, a crimping tool which uniformly applies force to the pipe fitting and has a simplified structure is desired.

A crimping tool is known in the prior art which comprises two semi-circular crimping members. The two semicircular crimping members are connected via a hinge shaft so that the two semicircular crimping members can rotate centering on the hinge shaft. A space for accommodating a workpiece (e.g., a pipe) to be crimped (may also be referred to as a crimping space) is defined between inner side surfaces of the two semicircular crimping members. Such a crimping tool performs a crimping operation while the two semicircular crimping members are rotated toward each other centering on the hinge shaft. During the crimping operation, the portion of the crimping tool closer to the hinge axis exerts a greater pressure on the workpiece, while the open portion of the crimping tool farther from the hinge axis exerts a lesser pressure on the tube. Because the pipe is stressed unevenly, the pipe deforms from the part stressed more to the part stressed less to be in a non-circular shape. Also, wrinkles (or may be referred to as burrs) occur at the position of the tube adjacent to the opening portion of the crimping tool, which affects the reliability and/or sealability of the tube connection.

Another crimping tool is known in the art, which comprises an inner and an outer crimp ring. The outer layer crimp ring includes a plurality of outer layer crimp members hingedly connected together. The inner crimp ring includes a plurality of inner crimp members connected to and slidable relative to the outer crimp ring. With such crimping tools, the number of crimping members is large, the structure is complicated, and the manufacturing and assembling costs are high.

Accordingly, there is still room for improvement in the crimping performance of the crimping tool.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a crimping tool with a light jaw, which has the advantages of strong inward extrusion property, stable extrusion, good fusion property, quickness, convenience and the like by connecting two disconnected pipe orifices, and solves the technical problems.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a crimping tool with a light jaw comprises a hydraulic tool and a heating device, wherein the hydraulic tool comprises a hydraulic cylinder, a guide rod, an upper clamp and a lower clamp, the hydraulic cylinder is vertical to the top surface of the upper clamp, the guide rod penetrates through the upper clamp to the top surface of the lower clamp, the guide rod is inserted into the front end of the hydraulic cylinder, the upper clamp is clamped above the lower clamp, a supporting seat is arranged at the bottom end of the lower clamp, and the heating device is arranged on the inner sides of the front ends of the upper clamp and the lower clamp;

the two sides of the hydraulic tool are provided with propellers, the propellers comprise a retaining ring, a tangent plane push block and a return spring, the bottom end of the retaining ring is connected with the tangent plane push block, the return spring is sleeved on the surface of the tangent plane push block, the front end of the tangent plane push block is connected with the rear end of the tangent plane push block, the heating device is connected with a controller through a wire, the controller is arranged at the rear end of an upper clamp, the inner top surface of the hydraulic cylinder is connected with the top end of a guide rod, a nut is arranged on the inner top surface of the hydraulic cylinder, a thread groove is arranged on the top end of the guide rod, the nut is tightly embedded with the thread groove, the thread pitches of the nut are equal to those of the thread groove, a sealing ring is sleeved at the joint of the hydraulic cylinder and the guide rod, the inner walls of the front ends of the upper clamp and the lower clamp are in an arc shape, the two groups of the propellers are arranged, the bottom ends of the propellers are provided with bases, the rear ends of the tangent plane push block are clamped with rotating handles, the front end of the side surface of the rotating handle is provided with a connecting hole, and a linkage rod is embedded between the inner parts of the connecting holes.

Compared with the prior art, the invention provides a crimping tool with a lightweight jaw, which has the following beneficial effects:

1. this crimping tool who keeps silent lightweight through be provided with the propeller at hydraulic tool both ends, utilizes the propeller to extrude inwards, can inwards extrude fixed pipeline, can carry out the effect of crimping to the pipeline that is docking.

2. This keep silent lightweight crimping tool installs the tangent plane ejector pad through being close to hydraulic means one side at the propeller, utilizes rotatory production forward extruded effect between tangent plane ejector pad and the tangent plane ejector pad, can inwards extrude two pipelines, and tangent plane ejector pad outside section is installed and is changeed the handle, utilizes to change reaching synchronous effect, can make between the pipeline crimping accurate, and the crimping is effectual.

3. This keep silent lightweight crimping tool, heating device settle in last pincers and the inboard between the pincers down, continuously heat the pipeline through heating device, can reach and dissolve, and the pipeline mouth that rethread propeller will dissolve extrudees for the pipeline mouth of disconnection carries out the crimping.

4. This crimping tool of keeping silent lightweight has cup jointed reset spring in tangent plane ejector pad periphery, and reset spring can resume tangent plane ejector pad to original position when tangent plane kicking block antiport.

Drawings

FIG. 1 is a schematic view of a structural hydraulic tool of the present invention;

FIG. 2 is a schematic view of a heating apparatus according to the present invention;

FIG. 3 is a schematic side cross-sectional view of a hydraulic cylinder of the present invention construction;

FIG. 4 is a schematic view of a retaining ring according to the present invention;

FIG. 5 is a schematic front cross-sectional view of a propeller of the present invention;

FIG. 6 is a schematic view of the present invention with a hydraulic cylinder connected to a hydraulic tool.

Wherein: 1. a hydraulic tool; 2. a heating device; 3. a hydraulic cylinder; 4. a guide bar; 5. upper pliers; 6. a lower clamp; 61. a supporting seat; 7. a propeller; 71. a retaining ring; 72. cutting the noodles and pushing blocks; 73. cutting a noodle top block; 74. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a crimping tool with a light jaw comprises a hydraulic tool 1 and a heating device 2, wherein the hydraulic tool 1 comprises a hydraulic cylinder 3, a guide rod 4, an upper jaw 5 and a lower jaw 6, the hydraulic cylinder 3 is vertical to the top surface of the upper jaw 5, the guide rod 4 penetrates through the upper jaw 5 to the top surface of the lower jaw 6, the guide rod 4 is inserted into the front end of the hydraulic cylinder 3, the upper jaw 5 is positioned above the lower jaw 6, a support seat 61 is arranged at the bottom end of the lower jaw 6, and the heating device 2 is arranged on the inner sides of the front ends of the upper jaw 5 and the lower jaw 6;

two sides of the hydraulic tool 1 are provided with propellers 7, each propeller 7 comprises a retaining ring 71, a tangent plane push block 72, a tangent plane top block 73 and a return spring 74, the bottom end of the retaining ring 71 is connected with the tangent plane push block 72, the return spring 74 is sleeved on the surface of the tangent plane push block 72, and the front end of the tangent plane top block 73 is connected with the rear end of the tangent plane push block 72.

Specifically, the heating device 2 is connected with a controller through an electric wire, and the controller is arranged at the rear end of the upper clamp 5. The heating device 2 is controlled to be installed on the heating device 2 on the inner wall of the upper pliers 5/lower pliers 6 through the controller connected with the rear end, the temperature of the heating device 2 can achieve the effect of softening a pipeline, the pipeline opening can be fused by extrusion, the pipeline opening is controlled to be embedded in the rear end of the upper pliers 5, and the heating device 2 is connected with the controller through a connecting line.

Specifically, the top surface inside the hydraulic cylinder 3 is connected to the top end of the guide rod 4, the nut is installed on the top surface inside the hydraulic cylinder 3, the thread groove is formed in the top end of the guide rod 4, the nut is embedded with the thread groove tightly, and the nut is equal to the thread pitch of the thread groove. 3 front ends of pneumatic cylinder are provided with the telescopic link, and telescopic link inner wall top mounting nut carries out fixed connection between guide arm 4 that can make through rotary hydraulic cylinder 3 and the pneumatic cylinder 3, and the telescopic link is connected at the top surface of last pincers 5, can carry out the effect of butt joint each other with pincers 6 down through the telescopic link with last pincers 5 through pneumatic cylinder 3 during operation, and guide arm 4 length is less than the inside degree of depth of telescopic link.

Specifically, a sealing ring is sleeved at the joint of the hydraulic cylinder 3 and the guide rod 4. The sealing washer inlays and connects at the telescopic link inner wall, and the sealing washer cup joints on guide arm 4, and the leakproofness of telescopic link can be increased when the telescopic link is flexible from top to bottom on the surface of guide arm 4.

Specifically, the inner walls of the front ends of the upper tong 5 and the lower tong 6 close to one side are arc-shaped. The arc can carry out the joint with the pipeline, and go up pincers 5 and lower pincers 6 and can adjust from top to bottom through pneumatic cylinder 3, is convenient for process the pipeline of different models, utilizes the space adjustability between pincers 5/lower pincers 6, enlarges hydraulic tool 1's suitability scope.

Specifically, the propellers 7 are provided with two groups, and the bottom end of the propeller 7 is provided with a base. The propeller 7 utilizes the trace to carry out the synchronization for install the propeller 7 at hydraulic tool 1 both sides end inwards extrude, then with the pipeline crimping inside that softens, make two pipelines can carry out the effect of coincidence.

Specifically, the rear end of the tangent plane top block 73 is clamped with a rotating handle, the front end of the side surface of the rotating handle is provided with a connecting hole, and a linkage rod is embedded between the inner parts of the connecting holes. The rear end of the rotating handle is fixedly clamped with the rear end of the tangent plane ejector block 73, the linkage rod inserted in the connecting hole formed in the front end is hinged, the rotating handle can rotate within a range of 60 degrees, the tangent plane ejector block 73 and the tangent plane push block 72 can be mutually pushed, and then the pipeline can be internally extruded.

When the invention is used, the thrusters 7 are arranged at the two ends of the hydraulic tool 1, the thrusters 7 are utilized to extrude inwards, the fixed pipelines can be extruded inwards, the butted pipelines can be pressed, the tangent plane pushing block 72 is arranged at one side of the thrusters 7 close to the hydraulic tool 1, the tangent plane pushing block 72 and the tangent plane pushing block 73 rotate to generate the forward extrusion effect, the two pipelines can be extruded inwards, the rotating handle is arranged at the outer side section of the tangent plane pushing block 73, the synchronous effect can be achieved by utilizing the rotating handle, the pressing connection between the pipelines can be accurate, the pressing connection effect is good, the heating device 2 is arranged at the inner side between the upper plier 5 and the lower plier 6, the pipelines can be heated continuously by the heating device 2, the dissolution can be achieved, the dissolved pipeline port is extruded by the thrusters 7, the disconnected pipeline port is pressed, the reset spring 74 is sleeved on the periphery of the tangent plane pushing block 72, when the section top block 73 rotates reversely, the return spring 74 can restore the section pushing block 72 to the original position.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A crimping tool with a lightweight jaw, comprising a hydraulic tool (1) and a heating device (2), wherein the hydraulic tool (1) comprises a hydraulic cylinder (3), a guide rod (4), The upper tong (5) and the lower tong (6), the hydraulic cylinder (3) is vertically arranged on the top surface of the upper tong (5), and the guide rod (4) runs through the upper tong (5) to the lower tong (6) On the top surface, the guide rod (4) is inserted into the front end of the hydraulic cylinder (3), the upper clamp (5) is located above the lower clamp (6), and the bottom end of the lower clamp (6) is provided with a support seat ( 61), a heating device (2) is arranged on the inner side of the front ends of the upper clamp (5) and the lower clamp (6);

Pushers (7) are arranged on both sides of the hydraulic tool (1), and the pushers (7) include a retaining ring (71), a tangential push block (72), a tangential top block (73) and a return spring (74) ), the bottom end of the clasp (71) is connected to the cut surface push block (72), the return spring (74) is sleeved on the surface of the cut surface push block (72), and the front end of the cut surface top block (73) is connected to the cut surface push block (72) Rear end, the heating device (2) is connected with a controller through a wire, the controller is arranged at the rear end of the upper clamp (5), and the inner top surface of the hydraulic cylinder (3) is connected to the guide rod (4) ) top, the inner top surface of the hydraulic cylinder (3) is provided with a nut, the top of the guide rod (4) is provided with a threaded groove, the nut is tightly embedded with the threaded groove, and the nut and the threaded groove have the same pitch, so A sealing ring is sleeved at the connection between the hydraulic cylinder (3) and the guide rod (4). There are two groups, the bottom end of the pusher (7) is provided with a base, the rear end of the cutting surface top block (73) is clamped with a turning handle, and the front end of the side surface of the turning handle is provided with a connecting hole, and the inside of the connecting hole is A link rod is embedded between them.