CN114709672B

CN114709672B - Numerical control machine tool line connector with protection function

Info

Publication number: CN114709672B
Application number: CN202210632321.8A
Authority: CN
Inventors: 陈广成; 贺建兴; 李标汉; 林文豪; 蒙昌敏
Original assignee: Guangdong Keruisi Cnc Technology Co ltd
Current assignee: Guangdong Columbium CNC Technology Co.,Ltd.
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-08-05
Anticipated expiration: 2042-06-07
Also published as: CN114709672A

Abstract

The invention provides a numerically-controlled machine tool line connector with a protection function, which belongs to the technical field of numerically-controlled machine tool line connectors and comprises a first shell, wherein a fixed connecting part and a movable connecting part which are matched with each other are arranged in the first shell and are sequentially arranged from inside to outside, the movable connecting part is connected in the first shell in a limiting and sliding manner, the numerically-controlled machine tool line connector also comprises a second shell, a connecting seat corresponding to the movable connecting part is fixedly arranged in the second shell, the movable connecting part comprises an insulating plate seat connected in the first shell in a limiting and sliding manner, a contact pin is fixedly inserted in the insulating plate seat, and right-angle switching assemblies are uniformly arranged in the first shell. This digit control machine tool circuit connector with protect function to the mode that shifts the control power has effectively improved stability and security that the connector used, compares with prior art, has not only effectively improved the stability when the contact pin is pegged graft, still has the maintenance of being convenient for simultaneously and changes and simple structure's advantage.

Description

Numerical control machine tool line connector with protection function

Technical Field

The invention relates to the technical field of a numerical control machine tool line connector, in particular to a numerical control machine tool line connector with a protection function.

Background

The numerically-controlled machine tool line connector mainly aims at realizing connection of power supply, signals and data, generally comprises a plug and a socket, and is plugged together to realize a connection transmission function in the using process, wherein the stability of connection and the safety of use are two important factors influencing the quality of the connector.

At present, before a plug and a socket of a connector are plugged, a contact pin on the plug is usually in an exposed and normally open state, and certain hidden troubles exist in the aspects of safety and stability, therefore, part of the plug is provided with an on-off protection mechanism, the contact pin on the plug is designed to be in a movable state, an elastic piece is arranged between the contact pin and a plug main body, before plugging, the contact pin is controlled to be disconnected with the plug main body through elastic supporting force of the elastic piece, after plugging, the socket generates extrusion force to compress the elastic piece so as to enable the contact pin to be communicated with the plug main body, and the connector is protected by controlling the on-off of the contact pin so as to improve the safety and the stability of the use of the connector, but the defect is that the elastic compression force generated by the elastic piece always acts between the contact pin and the plug main body, the risk of stable connection between the contact pin and the plug main body is increased, if the elastic force of the elastic piece is reduced in order to reduce the risk of stable connection, the stability of the disconnected state of the pin from the header body before plugging is affected.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a digital control machine tool line connector with a protection function, which is achieved by the following specific technical means: the movable connecting part comprises an insulating plate seat which is in limited sliding connection in the first shell, contact pins are fixedly inserted in the insulating plate seat, right-angle switching assemblies are uniformly arranged in the first shell and comprise nonlinear connecting rods, two ends of each connecting rod are respectively connected with spherical pieces, the spherical pieces on the same connecting rod are distributed in a right-angle shape and attached to the insulating plate seat, and the connecting rods are rotatably connected to the first shell and are connected with elastic switching pieces; the first shell is also internally provided with a plugging plate with through holes, the number of the plugging plates is two, the plugging plates are sequentially distributed from inside to outside, wherein the inner plugging plate is linearly and slidably connected into the first shell along the direction from outside to inside, the outer plugging plate firstly spirally slides along the direction from outside to inside, after the through holes on the inner plugging plate are completely coincided with the through holes on the inner plugging plate, the inner plugging plate linearly slides, the outer plugging plate is fixedly connected with an inserting column with a clamping groove, a connecting seat is provided with a slot corresponding to the inserting column, the slot comprises a movable inserting part and a locking part, an insulating plate seat is connected with a sliding block, the sliding block is slidably inserted into the first shell, the sliding block is elastically and rotatably connected with an L-shaped clamping piece matched with the outer plugging plate, the L-shaped clamping piece is slidably embedded into the first shell, an accommodating groove opposite to the L-shaped clamping piece is arranged in the first shell, and the first shell is also provided with a foolproof-proof groove, the connecting seat is provided with a fool-proof piece corresponding to the fool-proof groove.

The first preferred technical scheme is as follows: the utility model discloses a casing, including the casing, the casing is including the casing of internal casing one and take internal screw thread, and the two is cylindrical and the shell body is one set to be established outside internal casing one, and the casing is two including the interior casing of taking the external screw thread and shell body two and fixing base, and interior casing two all is cylindrical and fixed connection together with shell body two, rotates simultaneously and connects on the fixing base, and the connecting seat is located interior casing two and fixed connection on the fixing base.

The preferred technical scheme is as follows: the outer side of the first outer shell and the inner side face of the second outer shell are both provided with frustum-shaped sealing sleeves, and one ends of the sealing sleeves, which are smaller in diameter, are movably inserted together.

The preferred technical scheme is three: the fixed connection part is fixedly connected to the first outer shell, the insulating plate seat is arranged on the first inner shell, the fixed connection component is connected between the first inner shell and the first outer shell, the inner shell extends outwards from the first outer shell, and the fixed connection component is used for fixedly connecting the first inner shell to the first outer shell.

The preferable technical scheme is four: fixed connection subassembly includes that the tip is spherical joint post, has the joint groove of sharp spout and has the pull rod of the protruding piece of arc, joint post evenly distributed just elasticity is pegged graft at shell body one on the inside wall of shell body one, joint groove evenly distributed including on the lateral wall of shell body one and with joint post one-to-one, including the pull rod evenly distributed on shell body one and with an interior shell body elastic sliding connection, the protruding piece of arc on the pull rod is located the joint inslot and corresponding with corresponding joint post.

The preferred technical scheme is five: the plugging plate at the outer side is connected with the plugging plate at the inner side in a limiting and rotating way, a plurality of supplement plates with through holes are arranged between the plugging plate and the plugging plate, the supplement plates are arranged in sequence from inside to outside, and the opening and closing control parts are arranged between the adjacent supplementary plates, between the most inner supplementary plate and the inner plugging plate, and between the most outer supplementary plate and the most outer supplementary plate, and comprise arc-shaped sliding grooves and sliding columns, the sliding columns are fixedly connected to the supplementary plates positioned on the outer sides in the adjacent supplementary plates and are inserted into the corresponding arc-shaped sliding grooves in a sliding manner, the arc-shaped sliding grooves are formed in the supplementary plates positioned on the inner sides in the adjacent supplementary plates, the distribution mode of the opening and closing control parts between the plugging plates and the supplementary plates adjacent to the plugging plates is the same as that of the opening and closing control parts between the two adjacent supplementary plates, and the sliding ranges of the arc-shaped sliding grooves are sequentially increased from outside to inside.

The preferred technical scheme is six: one side of the insulating plate base, which is far away from the fixed connecting part, is provided with a conical protective sleeve, and the conical protective sleeves are respectively sleeved on the contact pins.

The invention has the following beneficial effects: 1. this digit control machine tool circuit connector with protect function passes through insulating board seat, contact pin, right angle switching module, shutoff board, the combined action of inserting post, slot and fixed connection subassembly to the mode of transfer control power has effectively improved stability and the security that the connector used, compares with prior art, has not only effectively improved the stability when the contact pin is pegged graft, still has the advantage of being convenient for maintain change and simple structure simultaneously.

2. This digit control machine tool circuit connector with protect function passes through the shutoff board, inserts the combined action of post, slot, supplementary board and the control that opens and shuts, can prevent effectively that dust and foreign matter from getting into in the shell one, and can avoid the contact pin to receive external force and take place the condition of warping or damaging, has effectively improved stability and the security that the plug used, has the advantage that application scope is wide simultaneously.

3. This digit control machine tool circuit connector with protect function has improved the stability of grafting state through interior casing one, shell body one, interior casing two, shell body two, fixing base and fixed connection subassembly's combined action, has effectively reduced the degree of difficulty and the cost that the contact pin maintenance was changed simultaneously, the corresponding waste of having avoided the resource.

Drawings

Fig. 1 is a first perspective view of the plug and the socket of the present invention in a non-plugged state.

Fig. 2 is a schematic view of a second perspective structure of the plug and the socket of the present invention in a non-plugged state.

Fig. 3 is a first partial sectional structural view of the present invention.

FIG. 4 is a second partial sectional structural view of the present invention.

Fig. 5 is a schematic view of the closure and supplemental panels of the present invention.

FIG. 6 is a schematic structural diagram of the right angle switching assembly of the present invention.

Fig. 7 is a schematic structural view of the fixing and connecting assembly of the present invention.

Fig. 8 is a schematic structural view of the slider and the L-shaped clip of the present invention.

FIG. 9 is a schematic structural diagram of the plug post and the socket in the plugging state of the present invention.

Fig. 10 is a structural schematic view of the blocking plate and the inner shell body I positioned at the outer side of the invention.

Fig. 11 is a schematic structural diagram of the first outer shell and the second inner shell after being inserted.

In the figure: 1. an insulating plate seat; 2. inserting a pin; 3. a right angle switching assembly; 31. a connecting rod; 32. a spherical member; 33. an elastic switching member; 4. a plugging plate; 5. inserting a column; 6. a slot; 7. a slider; 8. an L-shaped clamping piece; 9. an accommodating groove; 10. a fool-proof groove; 11. a fool-proof piece; 12. a first inner shell; 13. a first outer shell; 14. a second inner shell; 15. a second outer shell; 16. a fixed seat; 17. fixing the connecting assembly; 171. clamping the column; 172. a clamping groove; 173. a pull rod; 18. a supplement board; 19. an opening and closing control member; 191. an arc-shaped sliding groove; 192. a sliding post; 20. and (6) a protective sleeve.

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 and 2, a numerically-controlled machine tool line connector with a protection function comprises a first shell and a second shell, wherein a fixed connecting part and a movable connecting part which are matched with each other are arranged in the first shell, the fixed connecting part and the movable connecting part are sequentially arranged from inside to outside, the movable connecting part is connected in the first shell in a limiting sliding mode, a connecting seat corresponding to the movable connecting part is arranged in the second shell, the first shell, the fixed connecting part and the movable connecting part form a plug, the second shell and the connecting seat form a socket, when the plug and the socket are not plugged together, the fixed connecting part and the movable connecting part are in a disconnected state, when the plug and the socket are plugged together, the fixed connecting part and the movable connecting part are communicated, and meanwhile, the movable connecting part and the connecting seat are communicated.

Referring to fig. 4 and 6, the movable connection portion includes an insulation board base 1 connected in a limited sliding manner in a housing one, and the insulation board base 1 is fixedly inserted with pins 2, the invention is not limited to the number and arrangement of the pins 2, the right angle switching assembly 3 is uniformly arranged in the housing one along the circumferential direction, the right angle switching assembly 3 includes a non-linear connecting rod 31, two ends of the connecting rod 31 are respectively connected with a spherical member 32, the spherical members 32 on the same connecting rod 31 are distributed in a right angle shape and attached to the insulation board base 1, the connecting rod 31 is rotatably connected to the housing one and connected with an elastic switching member 33 between the housing one, as shown in the upper view of fig. 6, in the state that the plug and the socket are not plugged, the connecting rod 31 and the insulation board base 1 are in a schematic view, at this time, the elastic switching member 33 acts on the connecting rod 31 and supports the insulation board base 1 through the spherical member 32 located between the insulation board base 1 and the fixed connection portion, disconnecting the contact pin 2 on the insulation board seat 1 from the fixed connection part, and in the process of inserting the plug and the socket, as shown in the lower view in fig. 6, the contact pin 2 is inserted into the connection seat, and the connection seat pushes the insulation board seat 1 to slide inwards in the process of inserting, so that the contact pin 2 is connected with the fixed connection part, and in the process of sliding the insulation board seat 1 inwards, the connecting rod 31 rotates under the action of the pushing force and moves to the state shown in the lower view in fig. 6, at this time, the spherical member 32 originally supporting the insulation board seat 1 completely moves to the side surface of the insulation board seat 1, completely transferring the supporting force borne by the insulation board seat 1, effectively reducing the risk of stable connection between the movable connection part and the fixed connection part, and the spherical member 32 previously located at the side surface of the insulation board seat 1 moves to the side surface of the insulation board seat 1 far away from the fixed connection part, and presses the insulation board seat 1, improve the stability that contact pin 2 and fixed connection portion are connected, compare with prior art, can not only control the break-make of contact pin 2 and fixed connection portion, can also improve the stability that the two is connected simultaneously, wholly increase substantially the stability that the connector is connected.

Referring to fig. 1, 2, 3, 4, 8, 9 and 10, a first housing is further provided with a second plugging plate 4 with through holes, the number of the plugging plates 4 is two, and the plugging plates 4 are sequentially distributed from inside to outside, wherein the inner plugging plate 4 is linearly slidably connected to the first housing along an outside-in direction, a gap block (not shown in the figure) is arranged on an inner side surface of the inner plugging plate 4, the size of the gap block is smaller than that of the plugging plate 4, the outer plugging plate 4 first spirally slides along an outside-in direction, after the through hole on the outer plugging plate is completely overlapped with the through hole on the inner plugging plate 4, the outer plugging plate 4 linearly slides, the outer plugging plate 4 is fixedly connected with a plug post 5 with a clamping groove, the connecting seat is provided with a slot 6 corresponding to the plug post 5, the slot 6 is arc-shaped, the slot 6 comprises a movable plugging part and a locking part, the insulating plate seat 1 is connected with a slide block 7, slider 7 slides and pegs graft on shell one, and elasticity rotates on slider 7 to be connected with L shape joint spare 8 that uses with the 4 cooperation of shutoff board in the outside, L shape joint spare 8 slides and inlays and connect in shell one, set up the accepting groove 9 relative with L shape joint spare 8 in the shell one, under the state that plug and socket were not pegged graft, through-hole on the shutoff board 4 of inboard and the through-hole on the shutoff board 4 in the outside stagger, at this moment, can prevent effectively that dust and foreign matter from getting into in the shell one, also can avoid contact pin 2 to receive external force and take place the condition of warping or damaging simultaneously, the stability and the security of plug use have effectively been improved.

Referring to fig. 1, 2, 3, 4, 8 and 9, in the process of inserting the plug and the socket, the insertion post 5 is inserted into the insertion slot 6, and in the process of inserting the connector into the first housing, the blocking plate 4 slides inward under the pushing of the connector, in the sliding process, the outer blocking plate 4 slides inward in the first housing in a spiral downward manner, and rotates simultaneously in the sliding process, so that the through hole on the blocking plate is gradually changed from a state of being staggered with the through hole on the inner blocking plate 4 to a state of being completely overlapped, and then slides inward continuously in a linear sliding manner, at this time, the pin 2 passes through the through hole to be inserted into the connector, after the pin 2 is completely inserted into the connector, the blocking plate 4 clings to the insulating plate seat 1 through the gap block, and as the connector moves inward, the insulating plate seat 1 slides inward until the pin 2 is connected with the fixed connector, and in the sliding process of the insulating plate seat 1, the L-shaped clamping piece 8 is synchronously driven to slide inwards through the sliding block 7, in the sliding process, the L-shaped clamping piece 8 slides out of the containing groove 9 and is clamped on the plugging plate 4 at the outer side, wherein, in the process of rotating the plugging plate 4 at the outer side, the inserting column 5 slides in the inserting groove 6 and locks the plugging plate 4 at the outer side with the connecting seat together, and the L-shaped clamping piece 8, the inserting column 5 and the inserting slot 6 form a linkage reset driving source, which not only has simple structure and reasonable design, when the plug is disconnected with the socket, the connecting seat drives the plugging plate 4 to reset, the plugging plate 4 drives the insulating plate seat 1 to reset through the L-shaped clamping piece 8, the insulating plate seat 1 drives the right-angle switching component 3 to reset, the clearance block makes a certain space reserved between the insulating plate seat 1 and the plugging plate 4, so that the right-angle switching component 3 can move smoothly.

Referring to fig. 4 and 5, the outer blocking plate 4 is connected to the inner blocking plate 4 in a limiting and rotating manner, a plurality of complementary plates 18 with through holes are arranged between the inner blocking plate 4 and the outer blocking plate 4, the complementary plates 18 are sequentially arranged from inside to outside, opening and closing control members 19 are arranged between the adjacent complementary plates 18, between the innermost complementary plate 18 and the inner blocking plate 4 and between the outermost blocking plate 4 and the outermost complementary plate 18, each opening and closing control member 19 comprises an arc-shaped sliding groove 191 and a sliding column 192, each sliding column 192 is fixedly connected to the complementary plate 18 positioned on the outer side of the adjacent complementary plates 18 and is slidably inserted into the corresponding arc-shaped sliding groove 191, each arc-shaped sliding groove 191 is arranged on the complementary plate 18 positioned on the inner side of the adjacent complementary plate 18, the opening and closing control members 19 between the blocking plates 4 and the adjacent complementary plates 18 are distributed in the same manner, and the sliding range of the entire arc-shaped sliding grooves 191 increases gradually from outside to inside, when the plugging plate 4 is pushed by the connecting base to rotate, the plugging plate 4 drives the supplementary plates 18 to reset from outside to inside in sequence through the opening and closing control piece 19 until the supplementary plates 18 completely coincide with the through holes on the plugging plate 4, and when the connecting base drives the plugging plate 4 to reset, the plugging plate 4 drives the supplementary plates 18 to rotate from outside to inside in sequence through the opening and closing control piece 19 until the through holes on the plugging plate 4 at the inner side are completely closed, when the plugging plate 4 rotates under the thrust, the plugging plate 4 rotates first, when the through holes on the plugging plate 4 and the through holes on the adjacent supplementary plates 18 complete the coincidence, the adjacent supplementary plates 18 start to rotate along with the through holes, the process that the supplementary plates 18 drive the supplementary plates 18 adjacent to the supplementary plates 18 to rotate is the same as the process that the supplementary plates 18 rotate until the through holes on all the plugging plate 4 and the supplementary plates 18 completely coincide, and in the process that the supplementary plates 18 reset, in the same way, the through holes are in a completely closed state, the invention can effectively avoid the situation that the sealing degree of the contact pins 2 is reduced because the through holes on the plugging plate 4 cannot be completely staggered due to the distributed gaps of the contact pins 2 or the distributed states of the contact pins, not only improves the sealing property of the environment where the contact pins 2 are positioned, but also is suitable for sockets with different numbers of the contact pins 2 and different arrangement modes.

Referring to fig. 1 and 2, a fool-proof groove 10 is further formed in the first shell, a fool-proof piece 11 corresponding to the fool-proof groove 10 is arranged on the connecting seat, the fool-proof groove 10 is an arc-shaped groove, the fool-proof piece 11 is an arc-shaped convex block, the two pieces are mutually adaptive, the fool-proof piece 11 is aligned to the fool-proof groove 10 to be inserted in the plug and socket plugging process, the positions of the connecting seat and the inserting needle 2 are limited through the two pieces, the inserting needle 2 can be free of accidents, and the inserting is accurate and smooth into the connecting seat.

Referring to fig. 1 and 2, the first outer shell includes a first inner shell 12 and a first outer shell 13 with internal threads, both of which are cylindrical and the first outer shell 13 is sleeved outside the first inner shell 12, the second outer shell includes a second inner shell 14 with external threads, a second outer shell 15 and a fixing seat 16, the second inner shell 14 and the second outer shell 15 are both cylindrical and fixedly connected together, and are rotatably connected to the fixing seat 16, the connecting seat is located in the second inner shell 14 and fixedly connected to the fixing seat 16, during the process of inserting the plug and the socket, the connecting seat is inserted into the first inner shell 12, the second inner shell 14 is inserted into the gap between the first inner shell 12 and the first outer shell 13, the first outer shell 13 is inserted into the gap between the second inner shell 14 and the second outer shell 15, and drives the second inner shell 14 to rotate through the second outer shell 15, during the rotation, the second inner shell 14 is in a manner of internal rotation and is in threaded connection with the first outer shell 13, and the connection stability is high, and the anti-interference performance of the external thread on the second inner shell 14 is improved through the second outer shell 15, the influence of external force and dust foreign matters on the connection process is effectively avoided, and meanwhile, dust can be effectively prevented from entering the connection area of the connecting seat and the inserting pin 2 through the overlapping insertion of the first inner shell 12, the first outer shell 13, the second inner shell 14 and the second outer shell 15.

Referring to fig. 1, 2 and 11, frustum-shaped sealing sleeves are respectively arranged on the outer side of the first outer shell 13 and the inner side of the second outer shell 15, and the ends with smaller diameters of the sealing sleeves are movably inserted together, as shown in fig. 11, so that the sealing performance of the connecting area of the connecting seat and the inserting pin 2 is further improved, and water can be effectively prevented from entering the connecting area of the connecting seat and the inserting pin 2.

Referring to fig. 4 and 7, the fixed connection portion is fixedly connected to the first outer shell 13, the insulation board base 1 is disposed on the first inner shell 12, the fixed connection assembly 17 is connected between the first inner shell 12 and the first outer shell 13, and the first inner shell 12 extends outward from the first outer shell 13, the first inner shell 12 is a cylindrical tubular structure, the fixed connection assembly 17 is used to fixedly connect the first inner shell 12 to the first outer shell 13, since the pin 2 is one of the most easily damaged parts on the plug, the difficulty and cost of replacement of the existing plug are high after the pin 2 is damaged, people often choose to replace the entire plug, which causes waste of resources, for this reason, the first inner shell 12 is disposed in a detachable connection manner, after the pin 2 is damaged, the first inner shell 12 is directly detached, and then the insulation board base 1 and the pin 2 are detached from one end of the first inner shell 12 close to the fixed connection portion, and install new insulating board seat 1 and contact pin 2, effectively reduced the degree of difficulty and the cost that contact pin 2 changed, the waste of corresponding resource has been avoided.

Referring to fig. 3 and 7, the fixing and connecting assembly 17 includes a spherical end portion of a snap post 171, a snap groove 172 with a straight sliding groove, and a pull rod 173 with an arc-shaped protrusion, the snap post 171 is uniformly distributed on the inner side wall of the outer housing 13 and elastically inserted into the outer housing 13, the snap groove 172 is uniformly distributed on the outer side wall of the inner housing 12 and corresponds to the snap post 171 one by one, the pull rod 173 is uniformly distributed on the inner housing 12 and elastically and slidably connects to the inner housing 12, and is also slidably connected to the inner housing 12 in a limited manner, the arc-shaped protrusion on the pull rod 173 is located in the snap groove 172 and corresponds to the corresponding snap post 171, the outer end surface of the inner housing 12 is provided with a snap ring, the pull rod 173 is connected to the snap ring, the snap post 171 is inserted into the corresponding snap groove 172 when the inner housing 12 is fixedly connected to the outer housing 13, when the inner housing 12 needs to be detached from the outer housing 13, outwards spur the go-between, outwards slide through the synchronous drive pull rod 173 of go-between, the protruding piece of arc on the synchronous drive of pull rod 173 removes, the protruding piece of arc pushes away joint post 171 at the in-process that removes, it slides until it breaks off with joint groove 172 in the outside casing 13, pull rod 173 stops sliding this moment, later outwards spur the go-between, can dismantle interior casing 12, and at the in-process of its installation, only need with interior casing 12 directly push into in the shell body 13 can, when joint groove 172 on it is through joint post 171, joint post 171 then can fix interior casing 12 in direct insertion joint groove 172 under the effect of elastic force.

Referring to fig. 4, a tapered protective sleeve 20 is disposed on one side of the insulating board base 1 away from the fixed connection portion, and the tapered protective sleeves 20 are respectively sleeved on the pins 2 to protect the pins 2 and improve the deformation resistance of the pins 2.

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. The utility model provides a digit control machine tool circuit connector with protect function which characterized in that: the device comprises a first shell, wherein a fixed connecting part and a movable connecting part which are matched with each other are arranged in the first shell, the fixed connecting part and the movable connecting part are sequentially arranged from inside to outside, and the movable connecting part is connected in the first shell in a limiting and sliding manner;

a second shell, wherein a connecting seat corresponding to the movable connecting part is arranged in the second shell;

the movable connecting part comprises an insulating plate seat (1) which is connected in a shell I in a limiting sliding mode, inserting pins (2) are fixedly inserted into the insulating plate seat (1), right-angle switching assemblies (3) are uniformly arranged in the shell I, each right-angle switching assembly (3) comprises a nonlinear connecting rod (31), two ends of each connecting rod (31) are respectively connected with spherical parts (32), the spherical parts (32) on the same connecting rod (31) are distributed in a right-angle mode and are attached to the insulating plate seat (1), the connecting rod (31) is rotatably connected to the shell I, and an elastic switching part (33) is connected between the connecting rod (31) and the shell I;

a plugging plate (4) with through holes is further arranged in the shell I, the number of the plugging plates (4) is two, and the plugging plates are sequentially distributed from inside to outside, wherein the plugging plate (4) on the inner side is linearly and slidably connected into the shell I along the direction from outside to inside, the plugging plate (4) on the outer side firstly spirally and linearly slides along the direction from outside to inside, after the through hole on the plugging plate completely coincides with the through hole on the plugging plate (4) on the inner side, the plugging plate (4) on the outer side is then linearly and slidably connected with an inserting column (5) with a clamping groove, a slot (6) corresponding to the inserting column (5) is formed in the connecting seat, the slot (6) comprises a movable inserting part and a locking part, a sliding block (7) is connected onto the insulating plate seat (1), the sliding block (7) is slidably inserted onto the shell I, and an L-shaped clamping piece (8) matched with the plugging plate (4) on the outer side for use is elastically and rotatably connected onto the sliding block (7), l shape joint spare (8) slip scarf joint is in shell one, has seted up in the shell one and has held the groove (9) relative with L shape joint spare (8), still has seted up on the shell one and prevents slow-witted groove (10), is provided with on the connecting seat and prevents slow-witted piece (11) corresponding with preventing slow-witted groove (10).

2. The numerically-controlled machine tool line connector with the protection function according to claim 1, wherein: the utility model discloses a quick-witted, including casing one, shell one includes interior casing (12) and the internal screw thread in-band shell body (13), the two all is that cylindrical and shell body (13) cover establishes outside interior casing (12), shell two includes the interior casing two (14) of taking the external screw thread, shell body two (15) and fixing base (16), interior casing two (14) and shell body two (15) all are cylindrical and fixed connection together, rotate simultaneously and connect on fixing base (16), the connecting seat is located interior casing two (14) and fixed connection on fixing base (16).

3. The numerically-controlled machine tool line connector with the protection function according to claim 2, characterized in that: the outer side of the first outer shell (13) and the inner side face of the second outer shell (15) are respectively provided with a frustum-shaped sealing sleeve, and one end of the sealing sleeve with a smaller diameter is movably inserted together.

4. The numerically-controlled machine tool line connector with the protection function according to claim 2, characterized in that: fixed connection portion fixed connection is on outer casing (13), and insulating board seat (1) sets up on casing (12) including, and it is outside outwards stretching out outer casing (13) to be connected with fixed connection subassembly (17) and interior casing (12) between interior casing (12) and outer casing (13), and fixed connection subassembly (17) are used for with interior casing (12) fixed connection in outer casing (13).

5. The numerically-controlled machine tool line connector with the protection function according to claim 4, wherein: fixed connection subassembly (17) are spherical joint post (171) including the tip, joint groove (172) that have the sharp spout and pull rod (173) that have the protruding piece of arc, joint post (171) evenly distributed just elasticity is pegged graft on the inside wall of outer casing (13) at outer casing (13), just with joint post (171) one-to-one on the lateral wall of casing (12) including joint groove (172) evenly distributed, on casing (12) including pull rod (173) evenly distributed and with interior casing (12) elasticity sliding connection, the protruding piece of arc on pull rod (173) is located joint groove (172) and corresponding with corresponding joint post (171).

6. The numerically-controlled machine tool line connector with the protection function according to claim 1, wherein: the outer plugging plates (4) are connected to the inner plugging plates (4) in a limiting and rotating mode, a plurality of supplement plates (18) with through holes are arranged between the outer plugging plates and the inner plugging plates, the supplement plates (18) are sequentially arranged from inside to outside, opening and closing control parts (19) are arranged between the adjacent supplement plates (18), between the innermost supplement plate (18) and the inner plugging plate (4) and between the outermost plugging plate (4) and the outermost supplement plate (18), each opening and closing control part (19) comprises an arc-shaped sliding groove (191) and a sliding column (192), each sliding column (192) is fixedly connected to the outer supplement plate (18) in the adjacent supplement plates (18) and is inserted into the corresponding arc-shaped sliding groove (191), each arc-shaped sliding groove (191) is formed in the inner supplement plate (18) in the adjacent supplement plates (18), and the distribution mode of the opening and closing control parts (19) between the plugging plates (4) and the adjacent supplement plates (18) is matched with the adjacent supplement plates in a mode The opening and closing control pieces (19) among the supplementary plates (18) are distributed in the same mode, and the sliding range of the arc-shaped sliding groove (191) is increased from outside to inside in sequence.

7. The numerically-controlled machine tool line connector with the protection function according to claim 1, wherein: one side of the insulating board seat (1) far away from the fixed connecting part is provided with a conical protective sleeve (20), and the conical protective sleeves (20) are respectively sleeved on the contact pins (2).