Elastic wire pulling device

Abstract

The utility model discloses an elastic wire pulling device, comprising: a limiting mechanism, the limiting mechanism comprising a first driving part and a guiding part, the first driving part is used to drive the guiding part to move from a first position to a second position; a clamping mechanism, a part of the clamping mechanism is used to clamp the cable; an elastic driving mechanism, the elastic driving mechanism comprises an elastic member and a connecting part, the elastic member is connected to the connecting part, a part of the connecting part is respectively connected to the guiding part and another part of the clamping mechanism, and the elastic driving mechanism drives the guiding part to move from the second position to the first position; in the process of the elastic member being converted from a compressed state to a released state, the guiding part moves from the second position to the first position, a part of the connecting part drives another part of the clamping mechanism to move, so that a part of the clamping mechanism pulls the cable to make it straight. The utility model tightens the wire after the wire is placed in a mold, thereby eliminating the bending characteristics of the wire and solving the problem of defective products with exposed core wires.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to an elastic wire pulling device. Background Art

[0002] When the injection molded parts are processed in the EPB Core (Electronic Park Brake) automatic production line molding station, the EPB wires need to be clamped by a robot and placed into the corresponding mold, and the wires need to be positioned using the positioning pins on the corresponding positioning fixture.

[0003] In the related art, the positioning pins on the current positioning fixture are designed according to the size of the wire, and the wire cannot be clamped too tightly. Since the EPB wire is curved, when the robot puts it into the mold, the wire will return to the curved state in the mold. This means that when the injection molded part is injection molded in the mold, the core wire of the wire will be punched out to the surface of the product by the molded injection molded part, which will affect the molding quality of the product and make the product waste, which is not conducive to the daily processing of injection molded parts.

[0004] Therefore, there is an urgent need for a mechanism that can tighten the wires after they are placed in the mold, thereby effectively solving the problem of core wires leaking out of the product due to the bending characteristics of the wires. Utility Model Content

[0005] The purpose of the utility model is to solve the problem of core wire leakage on the product due to the bending characteristics of the wire. The utility model provides an elastic wire pulling device, which can tighten the wire after the wire is placed in the mold, thereby eliminating the bending characteristics of the wire and solving the problem of defective products with exposed core wires.

[0006] In order to solve the above technical problems, the embodiment of the utility model discloses an elastic wire pulling device, comprising:

[0007] A limiting mechanism, the limiting mechanism comprising a first driving part and a guiding part, the first driving part being used to drive the guiding part to move from a first position to a second position;

[0008] A clamping mechanism, a portion of which is used to clamp the cable;

[0009] an elastic driving mechanism, the elastic driving mechanism comprising an elastic member and a connecting portion, the elastic member being connected to the connecting portion, a portion of the connecting portion being respectively connected to the guide portion and another portion of the clamping mechanism, and the elastic driving mechanism driving the guide portion to move from the second position to the first position;

[0010] In the process of the first driving part driving the guide part to move from the first position to the second position, the elastic member is converted from a released state to a compressed state. In the process of the elastic member being converted from the compressed state to the released state, the guide part moves from the second position to the first position, and the part of the connecting part drives the other part of the clamping mechanism to move, so that the part of the clamping mechanism pulls the cable to straighten it.

[0011] For the convenience of description, the elastic wire pulling device is used in the EPB Core (Electronic Park Brake) automatic production line forming station to process EPB wires as an example for explanation.

[0012] By adopting the above technical solution, before the robot places the wire, when the first driving part drives the guide part to move from the first position to the second position, a part of the connecting part connected to the guide part will move synchronously, so that the elastic member is converted from a released state to a compressed state. At this time, the robot places the wire on a part of the mold and the clamping part, and the first driving part changes its state, so that the elastic member is converted from a compressed state to a released state, pushing the guide part to move from the second position to the first position, and a part of the connecting part connected to the guide part will move synchronously, thereby driving another part of the clamping mechanism connected thereto to move synchronously, so that the part of the clamping mechanism that clamps the wire can pull the wire to make it straight.

[0013] Then injection molding is carried out. At this time, the wire is injection molded in a straightened state without any bending, that is to say, it will not be rushed to the surface by the injection molded parts after molding, thus causing defective products. The overall structure is simple, and the use of elastic parts avoids the risk of wire breakage due to excessive pulling force. The overall transformation cost is low and the effect is significant. It solves the problem of defective wires leaking out due to the twisted characteristics of the EPB wires themselves during molding.

[0014] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an elastic wire pulling device, the clamping mechanism includes a clamping part and a second driving part, the clamping part is used to clamp the cable, the second driving part is connected to the part of the connecting part, the second driving part is connected to the clamping part, and can drive the clamping part to clamp or release the cable.

[0015] By adopting the above technical solution, after the robot puts the wire into the mold, the wire outside the mold is simultaneously put into the clamping part, and the second driving part drives the clamping part to clamp it. Then the second driving part is driven to move by a part of the connecting part, and the clamping part connected to it will move synchronously, thereby driving the wire clamped by the clamping part to move synchronously to a straightened state, and then injection molding is performed. At this time, the wire is injection molded in a straightened state and will not bend, that is, it will not be rushed to the surface by the molded injection molded part, thereby causing defective products.

[0016] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an elastic wire pulling device, which also includes a connecting plate, and the connecting plate is provided with a limiting hole. The guide part passes through the limiting hole and is connected with the part of the connecting part. The first driving part can drive the guide part to move in the limiting hole, thereby driving the part of the connecting part to move.

[0017] By adopting the above technical solution, the guide part is arranged to pass through the limiting hole and a part of the connecting part to move, so as to ensure that the guide part can move along the limiting hole with a part of the connecting part, limit the movement trajectory of the guide part, ensure its stable and directional movement, and also enable the wire to move stably and directional, preventing the wire from being pulled and damaged due to the unstable movement trajectory of the wire.

[0018] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an elastic wire pulling device, the connecting part includes a moving block and a fixed block, the elastic member is arranged between the moving block and the fixed block, and is respectively connected to the moving block and the fixed block, the moving block is respectively connected to the guide part and the second driving part, and the moving block is slidably connected to the connecting plate.

[0019] By adopting the above technical solution, the fixed block remains fixed and the movable block moves, so that the elastic member arranged between the two can be compressed when the movable block moves, and at the same time the movable block is slidably connected to the connecting plate. When the elastic member is in a released state, it can push the movable block to slide along the connecting plate, so that the elastic member can better release the force, thereby driving the wire clamped by the clamping part to move and slowly straighten it. The wire is slowly straightened by relying on the force of the elastic member, avoiding the risk of wire breakage caused by excessive pulling force. The overall transformation cost is low and the effect is significant, which solves the problem of defective wire leakage caused by the twisted characteristics of the EPB wire itself during molding.

[0020] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an elastic wire pulling device, the first driving part includes a driving device and a driving plate, the driving plate is connected to the driving device, the guide part abuts against the driving plate, the driving plate is slidably connected to the connecting plate, and the driving device can drive the driving plate to move, so as to drive the guide part to move from the first position to the second position.

[0021] By adopting the above technical solution, the driving device is connected to the driving plate, thereby driving the driving plate to move, and the guide part abuts against the driving plate, thereby synchronously driving the guide part to move, and the moving block is connected through the guide part, so that the moving block can move synchronously, thereby compressing the elastic part. At the same time, when the wire is clamped, the elastic part begins to release, driving the moving block to change the direction of movement. At this time, the state of the driving device is changed, so that it also synchronously drives the driving plate to move, so that the guide part maintains the same movement trajectory up and down.

[0022] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an elastic wire pulling device, which also includes a support rod and a support seat, the support seat is connected to the connecting plate, the support rod is arranged between the support seats, and the support rod is located on the side of the clamping part away from the connecting part.

[0023] By adopting the above technical solution, the electric wires are placed on the support rod, thereby providing support force for the electric wires during the process of straightening the electric wires, ensuring that the electric wires are not torn off.

[0024] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses an elastic wire pulling device, wherein through holes are provided on both sides of the moving block, and the guide portion is connected to the moving block through the through holes.

[0025] By adopting the above technical solution, through holes are provided at both ends of the moving block and are connected to the guide parts, so that the movement directions of the two ends of the moving block are consistent, thereby ensuring the stability of the movement.

[0026] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses an elastic wire pulling device, and first sliding devices are connected to both sides of the driving plate to enable the driving plate to be slidably connected to the connecting plate.

[0027] By adopting the above technical solution, the driving plate is connected to the first sliding device to be slidably connected with the connecting plate, so that the driving device drives the sliding plate to move more labor-saving.

[0028] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an elastic wire pulling device, and a second sliding device is connected to the side of the moving block away from the second driving part to enable the moving block to be slidably connected to the connecting plate.

[0029] By adopting the above technical solution, the moving block is connected to the connecting plate through the second sliding device so as to be slidably connected, so that the elastic member drives the moving block to move more labor-saving.

[0030] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an elastic wire pulling device, the driving plate includes an abutment bar and a sliding bar, the abutment bar is connected to the sliding bar, the abutment bar abuts against the guide part, and the sliding bar is connected to the first sliding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective view showing the prior art;

[0032] Figure 2 Show Figure 1 A magnified image of area A;

[0033] Figure 3 A three-dimensional diagram showing the elastic wire pulling device provided by the embodiment of the utility model applied to the forming station of the EPB Core automatic production line Figure 1 ;

[0034] Figure 4 Shows Figure 3 Enlarged view of area B;

[0035] Figure 5 The three-dimensional diagram of the elastic wire pulling device provided by the embodiment of the utility model is shown. Figure 1 , wherein the clamping portion does not clamp the wire;

[0036] Figure 6 The three-dimensional diagram of the elastic wire pulling device provided by the embodiment of the utility model is shown. Figure 2 , wherein the clamping portion does not clamp the wire;

[0037] Figure 7 The three-dimensional diagram of the elastic wire pulling device provided by the embodiment of the utility model from a top view is shown. Figure 3 , wherein the clamping portion clamps the wire;

[0038] Figure 8 The main perspective view of the elastic wire pulling device provided by the embodiment of the utility model is shown. Figure 4 , wherein the clamping portion clamps the wire.

[0039] 1. The mold is as follows: 1. The mold is as follows: 1. The limit groove is as follows: 11. The electric wire is as follows: 2. The limit mechanism is as follows: 20. The first driving part is as follows: 200. The driving device is as follows: 201. The driving plate is as follows: 202. The contact strip is as follows: 203. The sliding strip is as follows: 204. The connecting frame is as follows: 21. The guiding part is as follows: 22. The first sliding device is as follows: 220. The first slide rail is as follows: 221. The first slider is as follows: 222. The first limit block is as follows: 3. The clamping mechanism is as follows: 30. The clamping part is as follows: 31. The second driving part is as follows: 4. The elastic driving mechanism is as follows: 40. The elastic member is as follows: 41. The connecting part is as follows: 410. The moving block is as follows: 411. The fixed block is as follows: 42. The second sliding device is as follows: 420. The second slide rail is as follows: 421. The second slider is as follows: 422. The second limit block is as follows: 5. The connecting plate is as follows: 50. The limit hole is as follows: 6. The supporting rod is as follows: 70. The first supporting seat is as follows: 71. The second supporting seat is as follows: DETAILED DESCRIPTION

[0040] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0041] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0042] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0043] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0044] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0045] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0046] refer to Figure 1 and Figure 2 At present, in the EPB Core automatic production line molding station, the robot places the wire 11 in the positioning pin of the mold 1. The wire 11 is fixed mainly by the positioning pin. The positioning pin has a longitudinal direction (i.e. Figure 1 After the wire 11 is placed in the mold 1, due to the twisting characteristics of the wire 11 itself, the wire 11 will recover, that is, it will bend. During injection molding, the core wire of the wire 11 will be punched out of the molded injection molded part to the product surface, thereby affecting the molding quality of the product, making the product waste, and being detrimental to the daily processing of injection molded parts.

[0047] To this end, an embodiment of the present application provides an elastic wire pulling device, which straightens the wire 11 through an elastic driving mechanism 4 after the wire 11 is placed in the mold 1, thereby eliminating the bending characteristics of the wire 11 and solving the problem of defective products caused by core wire leakage.

[0048] refer to Figures 3 to 6 The embodiment of the present application provides an elastic wire pulling device, comprising: a limiting mechanism 2, a clamping mechanism 3, an elastic driving mechanism 4, a connecting plate 5, a support rod 6 and two support seats, wherein the connecting plate 5 is arranged along the direction of the wire 11 (i.e. Figure 3 The connecting plate 5 is provided with 16 limiting holes 50, each of which is arranged along the first direction (ie Figure 4 The limiting holes 50 are used to limit the movement trajectory and stroke length of the guide portion 21 described later, to ensure its stable and directional movement, and also to enable the wire 11 to move in a stable and directional manner, to prevent the wire 11 from being damaged due to an unstable movement trajectory.

[0049] Exemplarily, the two support bases are both L-shaped, and the two support bases are arranged along the second direction (i.e. Figure 3The eight wires 11 are arranged on the connecting plate 5 at intervals (in the Y direction shown in the figure). For the convenience of description, the one on the left is called the first support seat 70, and the one on the right is called the second support seat 71. A support rod 6 is provided between the first support seat 70 and the second support seat 71, that is, the support rod 6 extends along the second direction, and the support rod 6 is provided on the side of the clamping portion 30 described later, away from the connecting portion 41 described later. The eight wires 11 are all placed on the support rod 6, and the support rod 6 provides supporting force for the eight wires 11. The embodiment of the present application does not limit the specific number of the wires 11, and can be selected according to actual needs, for example, it can be 12, 15, etc.

[0050] It should be noted that the embodiments of the present application do not limit the shape of the support seat, the connection method between the support seat and the connecting plate 5, and the connection method between the support rod 6 and the two support seats. As shown in the embodiments of the present application, the two support seats are L-shaped, and a plurality of first connecting through holes are provided on the connecting plate 5. The two support seats are connected to the connecting plate 5 by bolts passing through the first connecting through holes. The two support seats are provided with second connecting through holes, and the two sides of the support rod 6 are connected to the two support seats through the second connecting through holes. Alternatively, the two support seats may be in a straight line, and the two support seats are welded to the connecting plate 5, and the two ends of the support rod 6 are respectively welded to the connecting seats.

[0051] For example, in combination Figure 5 and Figure 6 The limiting mechanism 2 includes a first driving portion 20 and 16 guide portions 21, and the guide portions 21 are arranged along the third direction (i.e. Figure 5 The first driving portion 20 includes a driving device 200 and a driving plate 201. The driving plate 201 is connected to the driving device 200. The guide portion 21 abuts against the driving plate 201. The driving plate 201 is slidably connected to the connecting plate 5. The driving device 200 can drive the driving plate 201 to move, so as to drive the guide portion 21 to move from the first position to the second position (i.e., from the rightmost end to the leftmost end of the limiting hole 50) along the extension direction of the limiting hole 50, so that the moving block 410 described later compresses the elastic member 40 described later, so that it is gradually converted into a compressed state.

[0052] It should be noted that the embodiment of the present application does not limit the specific number of guide parts 2, and can be selected according to actual needs, for example, it can be 20, 25, etc.

[0053] For example, reference Figure 6 and Figure 7 The driving plate 201 includes an abutting bar 202, a sliding bar 203 and a connecting frame 204. One end of the connecting frame 204 is connected to the driving device 200, and the other end of the connecting frame 204 is connected to the abutting bar 202. The abutting bar 202 is connected along the second direction (i.e. Figure 7The sliding bar 203 extends in the first direction (ie, the Y direction shown in FIG. 1 ). Figure 7 The abutment bar 202 is connected to the sliding bar 203, the abutment bar 202 abuts against the guide portion 21, the sliding bar 203 is connected to the first sliding device 22, and the driving device 200 can select other driving devices 7 such as a cylinder or a motor.

[0054] For example, reference Figure 6 and Figure 7 The first sliding device 22 is connected to the connecting plate 5, so that the driving device 200 drives the driving plate 201 to move more effortlessly. The first sliding device 22 includes a first slide rail 220 and a first slider 221. The first slide rail 220 extends along a first direction. The first slider 221 is arranged on the first slide rail 220 and connected to the sliding bar 203. First limit blocks 222 are arranged at both ends of the first slide rail 220 to limit the length of the movement track of the first slider 221.

[0055] For example, reference Figure 6 and Figure 8 The elastic driving mechanism 4 includes an elastic member 40 and a connecting portion 41, the connecting portion 41 includes a moving block 410 and a fixed block 411, the elastic member 40 is arranged between the moving block 410 and the fixed block 411, and the two ends of the elastic member 40 are respectively connected to the moving block 410 and the fixed block 411, and through holes are provided at both ends of the moving block 410. The above-mentioned guide portion 21 is connected to the moving block 410 through the through holes. The embodiment of the present application does not limit the specific type of the elastic member 40, which can be a spring or a rubber, as long as it has elastic force.

[0056] Exemplarily, the side of the moving block 410 close to the connecting plate 5 is connected to the second sliding device 42 described later, and the side of the moving block 410 away from the connecting plate 5 is connected to the second driving part 31 described later. That is to say, the moving block 410 is slidably connected to the connecting plate 5 and drives the second driving part 31 to move synchronously. When the above-mentioned driving device 200 changes its state, for example, from a contracted state to a stretched state, the guide part 21 disengages from the abutment strip, and the moving block 410 connected thereto loses pressure. At this time, the elastic member 40 gradually changes from a compressed state to a released state, relying on the force of the elastic member 40 to slowly straighten the wire 11 so as not to break the wire 11 or damage the wire 11 due to excessive force.

[0057] For example, reference Figure 6 and Figure 8 The second sliding device 42 is connected to the connecting plate 5, so that the elastic member 40 pushes the moving block 410 to move more effortlessly. The second sliding device 42 includes a second slide rail 420 and a second slider 421. The second slide rail 420 moves in the first direction (i.e. Figure 6The second slider 421 is arranged on the second slide rail 420 and connected to the moving block 410. One end of the second slide rail 420 is connected to the fixed block 411, and the other end is provided with a second limit block 422. The fixed block 411 and the second limit block 422 are used to limit the length of the movement track of the second slider 421.

[0058] For example, reference Figures 6 to 8 The clamping mechanism 3 includes 8 clamping parts 30 and 8 second driving parts 31. The clamping part 30 is scissor-shaped and is used to clamp the wire 11. The second driving part 31 is connected to the clamping part 30 and can drive the clamping part 30 to clamp or release the wire 11. The second driving part 31 can select other driving mechanisms such as a cylinder or a motor.

[0059] It should be noted that the embodiment of the present application does not limit the specific number of the clamping parts 30 and the second driving parts 31 , as long as it is consistent with the number of the wires 11 .

[0060] For example, before the robot places the wire 11, the driving device 200 contracts, driving the connecting frame 204 along the Figure 7 The slide bar 203 moves along the first slide device 22. Figure 7 The a direction shown in FIG. 1 is abutted against the strip 202 along the Figure 7 The guide portion 21 abutting against the abutting strip 202 is driven along the a direction shown in FIG. Figure 6 The movement in the direction a shown in FIG. drives the moving block 410 along Figure 6 The guide portion 21 moves in the direction a shown and squeezes the elastic member 40, so that the elastic member 40 gradually changes into a compressed state, and drives the second driving portion 31 and the clamping portion 30 to move synchronously until the guide portion 21 moves to the leftmost end along the limiting hole 50, that is, the guide portion 21 moves to the second position (also referred to as the initial position), ensuring that the initial position of the clamping portion 30 is consistent. At this time, the elastic member 40 is in a compressed state.

[0061] Operate the manipulator to place the wire 11 on the mold 1 and the clamping part 30. The second driving part 31 drives the clamping part 30 to clamp the wire 11. The driving device 200 stretches to drive the connecting frame 204 along the mold 1 and the clamping part 30 to clamp the wire 11. Figure 7 The slide bar 203 moves along the first slide device 22. Figure 7 The movement in the b direction shown, the abutment strip 202 moves along Figure 7 As shown in the b direction, the guide portion 21 is separated from the abutment strip 202, and the elastic member 40 gradually changes to a released state, pushing the moving block 410 along the Figure 6 The guide portion 21 moves along the limiting hole 50, and drives the second driving portion 31 and the clamping portion 30 to move synchronously. The clamping portion 30 drives the wire 11 along the limiting hole 50. Figure 6The guide portion 21 moves in direction b as shown until it moves to the rightmost end along the limiting hole 50, that is, the guide portion 21 moves to the first position (also referred to as the end position), straightening the wire 11 in the mold 1. At this time, the elastic member 40 is in a fully released state.

[0062] Then, injection molding is performed. At this time, the wire 11 is injection molded in a straightened state without bending, that is, it will not be pushed to the surface by the molded injection molded part, thereby causing defective products. The overall structure is simple, and the use of elastic parts 40 avoids the risk of wire breakage due to excessive pulling force. The overall modification cost is low and the effect is significant. The problem of defective wires 11 leaking out due to the twisted characteristics of the wires 11 themselves during molding is solved.

[0063] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An elastic wire pulling device, characterized in that: include: A limiting mechanism, the limiting mechanism comprising a first driving portion and a guiding portion, the first driving portion being used to drive the guiding portion to move from a first position to a second position; A clamping mechanism, a portion of which is used to clamp the cable; an elastic driving mechanism, the elastic driving mechanism comprising an elastic member and a connecting portion, the elastic member being connected to the connecting portion, a portion of the connecting portion being respectively connected to the guide portion and another portion of the clamping mechanism, and the elastic driving mechanism driving the guide portion to move from the second position to the first position; In the process of the first driving part driving the guide part to move from the first position to the second position, the elastic member is converted from a released state to a compressed state. In the process of the elastic member being converted from the compressed state to the released state, the guide part moves from the second position to the first position, and the part of the connecting part drives the other part of the clamping mechanism to move, so that the part of the clamping mechanism pulls the cable to straighten it.

2. The elastic wire pulling device according to claim 1, characterized in that: The clamping mechanism includes a clamping portion and a second driving portion, the clamping portion is used to clamp the cable, the second driving portion is connected to the portion of the connecting portion, the second driving portion is connected to the clamping portion, and can drive the clamping portion to clamp or release the cable.

3. The elastic wire pulling device according to claim 2, characterized in that: The elastic wire pulling device also includes a connecting plate, which is provided with a limiting hole. The guide part passes through the limiting hole and is connected to the part of the connecting part. The first driving part can drive the guide part to move in the limiting hole, thereby driving the part of the connecting part to move.

4. The elastic wire pulling device according to claim 3, characterized in that: The connecting part includes a moving block and a fixed block, the elastic member is arranged between the moving block and the fixed block, and is respectively connected to the moving block and the fixed block, the moving block is respectively connected to the guide part and the second driving part, and the moving block is slidably connected to the connecting plate.

5. The elastic wire pulling device according to claim 3, characterized in that: The first driving part includes a driving device and a driving plate, the driving plate is connected to the driving device, the guide part abuts against the driving plate, the driving plate is slidably connected to the connecting plate, and the driving device can drive the driving plate to move, so as to drive the guide part to move from the first position to the second position.

6. The elastic wire pulling device according to claim 3, characterized in that: The elastic wire pulling device also includes a support rod and a support seat, wherein the support seat is connected to the connecting plate, the support rod is arranged between the support seats, and the support rod is located on a side of the clamping portion away from the connecting portion.

7. The elastic wire pulling device according to claim 4, characterized in that: Through holes are provided on both sides of the moving block, and the guide part is connected with the moving block through the through holes.

8. The elastic wire pulling device according to claim 5, characterized in that: The two sides of the driving plate are connected with first sliding devices so that the driving plate is slidably connected with the connecting plate.

9. The elastic wire pulling device according to claim 4, characterized in that: A second sliding device is connected to a side of the moving block away from the second driving part, so that the moving block is slidably connected to the connecting plate.

10. The elastic wire pulling device according to claim 8, characterized in that: The driving plate includes an abutting bar and a sliding bar, the abutting bar is connected to the sliding bar, the abutting bar abuts against the guide portion, and the sliding bar is connected to the first sliding device.

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