Automatic ground wire picking device for high-speed cable harness

Abstract

The invention belongs to the technical field of cable harness automatic processing, and particularly relates to a high-speed cable harness automatic ground wire picking device which comprises a base, and one side of the base is connected with a wire picking unit. The thread take-up unit comprises a second air cylinder fixedly connected to one side of the base, a second sliding base connected to one side of the second air cylinder in a sliding mode and fixedly connected with the telescopic end of the second air cylinder, a third air cylinder fixedly connected to the upper end of the second sliding base, a third sliding base connected to the upper end of the third air cylinder in a sliding mode and fixedly connected with the telescopic end of the third air cylinder, and a clamping part installed at the upper end of the third sliding base. The second air cylinder and the third air cylinder are used for driving the clamping part to move in the Z-axis direction and the X-axis direction correspondingly. According to the take-up design, multiple ground wires located on the same horizontal plane can be taken up at the same time, the take-up efficiency is higher, multi-step bending can be achieved by controlling the telescopic stroke of the air cylinder in the take-up process, the single-time deformation can be reduced, stress concentration is reduced, and it is avoided that large stress is generated in a bending area when the ground wires are bent by 90 degrees at a time.

Description

Technical Field

[0001] The present application relates to the technical field of automated processing of cable harnesses, and in particular to an automatic ground wire picking device for high-speed cable harnesses. Background Art

[0002] High-speed cable harnesses are complex cable assemblies designed specifically for high-frequency, high-speed signal transmission. Their structural design must meet signal integrity (SI), electromagnetic compatibility (EMC) and mechanical reliability requirements. The harnesses are composed of conductors, insulation layers, shielding layers, ground wires and other structures.

[0003] In order to adapt to the requirements of specific connectors (such as plastic core welding), high-speed cable harnesses need to undergo a series of processing (removing the shielding layer and insulation layer of the cable outer layer, exposing the internal conductor and ground wire for welding). If the ground wire and the signal conductor are on the same horizontal plane, short circuit may occur due to contact or solder flow during welding. Therefore, the ground wire needs to be lifted to form a height difference with the conductor (such as vertical layering), which can effectively isolate the two. At the same time, the lifted ground wire also facilitates the connection between the ground wire and the outer casing.

[0004] The current prior art (Chinese utility model patent with announcement number CN220543654U) discloses an automatic ground wire picking device for a high-speed cable harness. Although the device can pick out the ground wire inside the harness, the device is only suitable for automatically picking out the ground wire of a circular harness. When the harness is flat and the ground wire and the signal conductor are in the same plane, the device cannot achieve effective wire picking. Therefore, it is necessary to invent a device for picking out the ground wire of a flat high-speed cable harness. Summary of the invention

[0005] The purpose of the present application is to provide a high-speed cable harness automatic ground wire picking device to solve the technical problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an automatic ground wire picking device for a high-speed cable harness, comprising a base, a wire picking unit connected to one side of the base, and the wire picking unit comprises a cylinder 2 fixedly connected to one side of the base, a slide seat 2 slidably connected to one side of the cylinder 2 and fixedly connected to the telescopic end of the cylinder 2, a cylinder 3 fixedly connected to the upper end of the slide seat 2, a slide seat 3 slidably connected to the upper end of the cylinder 3 and fixedly connected to the telescopic end of the cylinder 3, and a clamping portion installed at the upper end of the slide seat 3; The cylinder 2 and the cylinder 3 are used to drive the clamping part to move in the Z-axis direction and the X-axis direction respectively, and the clamping part clamps the ground wire and simultaneously performs Z-axis displacement and X-axis displacement, and bends the ground wire 90° to pick up the wire.

[0007] Preferably, a support seat is fixedly connected to the upper end of the base, a wire groove for accommodating the wire harness is opened on the upper end of the support seat, and a cover plate for limiting the wire harness is connected to the upper end of the support seat.

[0008] Preferably, the upper end of the base is also connected to a conductor pressing part, and the conductor pressing part includes a vertical plate fixedly connected to the upper end of the base, a cylinder 1 fixedly connected to one side of the vertical plate, a slide 1 slidably connected to one side of the cylinder 1 and fixed to the telescopic end of the cylinder 1, a pressure seat fixedly connected to one side of the slide 1, and a pressure head fixedly connected to the lower end of the pressure seat, wherein the pressure head is used to press down the conductor in the wiring harness and prevent the conductor and the ground wire from being in the same horizontal plane.

[0009] Preferably, a slide groove is opened on one side of the support seat, and a slide seat four is slidably connected in the slide groove, a cylinder four is fixedly connected to one side of the support seat, and the telescopic end of the cylinder four is fixedly connected to the lower end of the slide seat four, an extension seat is fixedly connected to one side of the slide seat four, and the upper end of the extension seat and the lower end of the pressure seat are both connected to the ground wire pretreatment unit.

[0010] Preferably, a relief groove for accommodating the conductor and the pressure head is provided inside the extension seat.

[0011] Preferably, the ground wire pretreatment unit includes two groups of cavities respectively opened inside the extension seat and the pressure seat, arc grooves respectively opened inside the extension seat and the pressure seat and connected to the cavities, a screw rod rotatably connected to the inner wall of the cavity, a concave seat slidably connected to the inner wall of the cavity and respectively screwed to the outside of the screw rod, and a pressure roller rotatably connected to the inner wall of the concave seat, and a motor is fixedly connected to one side of the extension seat and the pressure seat, and the output shaft of the motor is fixedly connected to one end of the screw rod.

[0012] Preferably, the arc-shaped grooves inside the extension seat and the pressure seat are used to accommodate the ground wire, and the rotation of the motor drives the screw rod to rotate and drive the concave seat to move. When the concave seat moves, the pressure roller contacts the outer surface of the ground wire and rolls the ground wire. By rolling the ground wire, local protrusions and depressions on the ground wire are eliminated, so that the upper and lower end surfaces of multiple ground wires are flat and can be in stable contact with the clamping part.

[0013] Preferably, an arc-shaped electric heating element is fixedly connected to the inner wall of the arc-shaped groove, and the arc-shaped electric heating element is used to preheat the ground wire, reduce the yield strength of the ground wire and reduce the elastic rebound generated by the ground wire during the bending process.

[0014] Preferably, the extension seat and the pressure seat are further provided with an installation groove connected to the arc groove, and an ultrasonic transducer part is fixedly connected in the installation groove, a conduction part is fixedly connected to one side of the ultrasonic transducer part, a groove body is provided inside the arc-shaped electric heating element, and one end of the conduction part passes through the groove body and extends outward.

[0015] Preferably, the ultrasonic wave generated by the ultrasonic transducer is transmitted to the ground wire through the transmission part, and the ultrasonic wave forms micro-vibration inside the ground wire and promotes the movement of dislocations inside the material.

[0016] Compared with the prior art, the beneficial effects of this application are: 1) The present application is provided with a wire picking unit, and the clamping part is driven by the second and third cylinders to move in the Z-axis direction and the X-axis direction, and the clamping part clamps the ground wire and simultaneously performs Z-axis displacement and X-axis displacement to complete the 90° bending wire picking action of the ground wire. The wire picking design of the present application can simultaneously pick up multiple ground wires on the same horizontal plane, and the wire picking efficiency is higher. In the wire picking process, the telescopic stroke of the cylinder can be controlled to achieve multi-step bending, which can reduce the single deformation, reduce stress concentration, and avoid a large stress in the bending area caused by a one-time bending of 90°. 2) The present application is provided with a ground wire pre-processing unit, which drives the screw rod to rotate through a motor, and the screw rod rotates to drive the concave seat to move. When the concave seat moves, the pressure roller contacts the outer surface of the ground wire and rolls the ground wire. The local protrusions and depressions on the ground wire are eliminated by rolling the ground wire, so that the upper and lower end surfaces of multiple ground wires are flat and can stably contact with the clamping part, avoiding the problem of unreliable clamping caused by inconsistent thickness or deformation of the two ground wires. At the same time, the original ground wire may be slightly twisted or bent, and rolling can make it tend to a straight state, reduce the deviation during clamping, and ensure that the clamping part can stably perform the wire picking action after clamping; 3) The present application is provided with an arc-shaped electric heating element, which can reduce the yield strength of the material of the ground wire and make it easier to enter a plastic deformation state, thereby reducing the elastic rebound generated during the bending process and ensuring the stability of the bending angle. At the same time, it can also improve the ductility of the material, so that it can deform more evenly during the processing process and reduce local stress concentration, thereby avoiding local damage or coating damage caused by excessive stress. After preheating, the material becomes softer and the bending force required during processing is reduced, which helps to improve the accuracy and consistency of automated equipment processing and reduce uneven bending caused by equipment errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the slideway, cylinder four, slide seat four and extension seat of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the ground wire in the present application in a 90° bent state and a conductor pressed down state;

[0020] Figure 4 This is a schematic diagram of the pressure head structure of this application;

[0021] Figure 5 This is a schematic diagram of the avoidance slot and motor structure of this application;

[0022] Figure 6 For this application Figure 5 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 7 This is a cross-sectional view of the extended seat for this application;

[0024] Figure 8 For this application Figure 7 A magnified schematic diagram of the structure at B in the middle;

[0025] Fig. 9 For this application Figure 2 A magnified schematic diagram of the structure at C in the middle;

[0026] In the figure: 1. base; 11. support seat; 12. cover plate; 13. vertical plate; 14. slide groove; 2. conductor pressing part; 21. cylinder one; 22. slide seat one; 23. pressure seat; 24. pressure head; 3. wire picking unit; 31. cylinder two; 32. slide seat two; 33. cylinder three; 34. slide seat three; 35. clamping part; 4. cylinder four; 5. slide seat four; 51. avoidance groove; 52. extension seat; 6. ground wire pretreatment unit; 61. cavity; 62. screw rod; 63. concave seat; 64. pressure roller; 65. arc groove; 66. installation groove; 67. motor; 7. arc-shaped electric heating element; 8. ultrasonic transducer part; 9. conduction part. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application. Example

[0029] See also Figure 1-9 The present application provides a technical solution: an automatic ground wire picking device for a high-speed cable harness, comprising a base 1, a wire picking unit 3 connected to one side of the base 1, and the wire picking unit 3 comprises a cylinder 2 31 fixed to one side of the base 1, a slide 2 32 slidably connected to one side of the cylinder 2 31 and fixed to the telescopic end of the cylinder 2 31, a cylinder 3 33 fixed to the upper end of the slide 2 32, a slide 34 slidably connected to the upper end of the cylinder 3 33 and fixed to the telescopic end of the cylinder 3 33, and a clamping portion 35 installed at the upper end of the slide 34; The cylinder 2 31 and the cylinder 3 33 are used to drive the clamping part 35 to move in the Z-axis direction and the X-axis direction respectively, and the clamping part 35 clamps the ground wire and simultaneously performs Z-axis displacement and X-axis displacement, and bends the ground wire 90° to pick up the wire.

[0030] A support seat 11 is also fixedly connected to the upper end of the base 1 . A wire groove for accommodating a wire harness is provided on the upper end of the support seat 11 . A cover plate 12 for limiting the position of the wire harness is connected to the upper end of the support seat 11 .

[0031] The upper end of the base 1 is also connected to a conductor pressing part 2, and the conductor pressing part 2 includes a vertical plate 13 fixedly connected to the upper end of the base 1, a cylinder 21 fixedly connected to one side of the vertical plate 13, a slide 22 slidably connected to one side of the cylinder 21 and fixed to the telescopic end of the cylinder 21, a pressure seat 23 fixedly connected to one side of the slide 22, and a pressure head 24 fixedly connected to the lower end of the pressure seat 23, wherein the pressure head 24 is used to press down the conductor in the wiring harness so that the conductor and the ground wire cannot be in the same horizontal plane.

[0032] A slide groove 14 is provided on one side of the support seat 11, and a slide seat four 5 is slidably connected in the slide groove 14. A cylinder four 4 is fixedly connected to one side of the support seat 11, and the telescopic end of the cylinder four 4 is fixedly connected to the lower end of the slide seat four 5. An extension seat 52 is fixedly connected to one side of the slide seat four 5, and the upper end of the extension seat 52 and the lower end of the pressure seat 23 are both connected to the ground wire pretreatment unit 6.

[0033] The extension seat 52 has an internal recess 51 for accommodating the conductor and the pressure head 24 .

[0034] By adopting the above scheme, one end of the wire harness after the shielding layer and the insulating layer are cut is placed in the wire groove in the support seat 11, and then the cover plate 12 is pressed on the upper end of the support seat 11 (a cylinder can be set above the cover plate 12, and the upper end of the cover plate 12 is connected to the telescopic end of the cylinder) to realize the positioning of the wire harness, and then the cylinder 121 is controlled to work, the cylinder 121 extends and drives the slide 12 to move downward, the slide 12 moves downward to drive the press seat 23 and the pressure head 24 to move downward, and the pressure head 24 moves downward to press the Figure 2 The exposed conductor at one end of the wiring harness shown in the figure is bent downward between the left and right ground wires (the bent conductor is as shown in the figure). Figure 3The state shown in the figure) makes it impossible for the conductor to be in the same horizontal plane with the left and right ground wires, so that the clamping part 35 will not clamp the conductor when clamping the left and right ground wires. By driving the cylinder three 33, the cylinder three 33 extends out and drives the slide seat three 34 to move toward the direction of the support seat 11. The clamping part 35 is divided into an upper clamp and a lower clamp. When the lower clamp moves to the bottom of the left and right ground wires, the clamping part 35 is controlled to work, and the upper clamp and the lower clamp are close together to clamp the two ground wires. Then the cylinder two 31 works and extends out and drives the slide seat two 32 to rise. While the cylinder two 31 extends out, the cylinder three 33 continues to work and extend and drives the slide seat three 34 to move. The extension of the cylinder two 31 can drive the clamping part 35 to move upward, and at the same time, the extension of the cylinder three 33 can drive the clamping part 35 to move toward the support seat 11, so as to realize the lifting of the two ground wires and the lifted ground wires are bent at 90° (the ground wires after lifting and bending are as shown in the figure). Figure 3 ), during the wire picking process, the cylinder's telescopic stroke can be controlled to achieve multiple-step bending, which can reduce the amount of deformation at a single time, reduce stress concentration, and avoid a large stress in the bending area caused by a one-time 90° bend. If the ground wire and the signal conductor are in the same plane, a short circuit may occur during welding due to contact or solder flow. By "picking up the ground wire" to form a height difference with the conductor (such as vertical stratification), the two can be effectively isolated, and the picked and bent ground wire can be easily welded to the connector's package iron shell.

[0035] See also Figure 3-Figure 6 The ground wire pretreatment unit 6 includes two groups of cavities 61 respectively opened in the extension seat 52 and the pressure seat 23, arc grooves 65 respectively opened in the extension seat 52 and the pressure seat 23 and connected to the cavity 61, a screw rod 62 rotatably connected to the inner wall of the cavity 61, a concave seat 63 slidingly connected to the inner wall of the cavity 61 and respectively screwed to the outside of the screw rod 62, and a pressure roller 64 rotatably connected to the inner wall of the concave seat 63. A motor 67 is fixedly connected to one side of the extension seat 52 and the pressure seat 23, and the output shaft of the motor 67 is fixedly connected to one end of the screw rod 62.

[0036] The arc groove 65 inside the extension seat 52 and the pressure seat 23 is used to accommodate the ground wire. The motor 67 rotates to drive the screw rod 62 to rotate and drive the concave seat 63 to move. When the concave seat 63 moves, the pressure roller 64 contacts the outer surface of the ground wire and rolls the ground wire. The rolling process of the ground wire eliminates local protrusions and depressions on the ground wire, so that the upper and lower end surfaces of multiple ground wires are flat and can be in stable contact with the clamping part 35.

[0037] By adopting the above scheme, before the clamping part 35 clamps the ground wire, the cylinder 44 works to extend and drive the extension seat 52 to slide upward in the slide groove 14, so that the lower half of the ground wire can enter the cavity 61 in the extension seat 52. At the same time, because the cylinder 1 21 drives the slide seat 1 22 to descend, the pressure seat 23 presses on the ground wire, and the upper half of the ground wire can enter the cavity 61 in the pressure seat 23. The ground wire is positioned through the cavity 61, and then the motor 67 is controlled to work and drive the screw rod 62 to rotate. The screw rod 62 rotates to drive the concave seat 63 to move, and the concave seat 63 moves. At the same time, the pressure roller 64 can contact with the outer surface of the ground wire, and the pressure roller 64 in the pressure seat 23 and the pressure roller 64 in the extension seat 52 can respectively roll and flatten the upper and lower ends of the ground wire, eliminating local protrusions and depressions on the ground wire, so that the upper and lower end surfaces of multiple ground wires are flat and can stably contact with the clamping part 35, avoiding the problem of unreliable clamping caused by inconsistent thickness or deformation of the two ground wires. At the same time, the original ground wire may be slightly twisted or bent, and rolling can make it tend to a straight state, reduce the deviation during clamping, and ensure that the clamping part 35 can stably perform the wire picking action after clamping.

[0038] See also Figure 6-Figure 8 An arc-shaped electric heating element 7 is fixedly connected to the inner wall of the arc-shaped groove 65, and the arc-shaped electric heating element 7 is used to preheat the ground wire, reduce the yield strength of the ground wire and reduce the elastic rebound generated by the ground wire during the bending process.

[0039] By adopting the above scheme, an arc-shaped electric heating element 7 is installed in the arc-shaped groove 65. The arc-shaped electric heating element 7 contacts the outer surface of the ground wire and preheats the ground wire, so that the yield strength of the ground wire material is reduced, making it easier to enter a plastic deformation state, thereby reducing the elastic rebound generated during the bending process and ensuring the stability of the bending angle. At the same time, the ductility of the material can be improved, so that it can deform more evenly during the processing process, reduce local stress concentration, and avoid local damage or coating damage caused by excessive stress. After preheating, the material becomes softer and the bending force required during processing is reduced, which helps to improve the accuracy and consistency of automated equipment processing and reduce uneven bending caused by equipment errors.

[0040] See also Figure 6-Figure 8 The extension seat 52 and the pressure seat 23 are further provided with a mounting groove 66 connected to the arc groove 65, and an ultrasonic transducer 8 is fixedly connected in the mounting groove 66, and a conduction part 9 is fixedly connected to one side of the ultrasonic transducer 8. A groove body is provided in the arc-shaped electric heating element 7, and one end of the conduction part 9 passes through the groove body and extends outward.

[0041] The ultrasonic wave generated by the ultrasonic transducer 8 is transmitted to the ground wire through the transmission part 9 , and the ultrasonic wave forms micro vibration inside the ground wire and promotes the dislocation movement inside the material.

[0042] By adopting the above scheme, the ultrasonic transducer part 8 is externally connected to an ultrasonic generator, and a high-frequency electrical signal (20kHz~40kHz) is emitted by the ultrasonic generator and output to the ultrasonic transducer part 8, which converts it into mechanical vibration, and transmits it to the surface of the metal conductor after amplification by the conduction part 9 (horn). The ultrasonic principle belongs to the mature existing technology and will not be repeated here. The vibration energy promotes the dynamic recrystallization of metal grains (can promote the movement of dislocations inside the material), reduces grain boundary defects, and improves the density (makes the lattice structure more uniform, reduces cold work hardening, and improves plasticity), and the vibration energy releases internal stress and reduces the risk of deformation in subsequent processing. According to the Hall-Page relationship: the grain size (d) is inversely proportional to the yield strength (σ) of the material (σ ∝ 1 / √d), and grain refinement can significantly improve the strength. After the copper wire is treated with ultrasound, its deformation resistance can be reduced.

[0043] Working principle: put one end of the wire harness after cutting the shielding layer and the insulating layer into the wire groove in the support seat 11, and then press the cover plate 12 on the upper end of the support seat 11 to position the wire harness. The cylinder 12 extends out and drives the slide 12 to move downward. The slide 12 moves downward and drives the press seat 23 and the pressure head 24 to move downward. The pressure head 24 moves downward to press the Figure 2 The conductor exposed at one end of the wiring harness shown in the figure and located between the left and right ground wires is bent downward, so that the conductor cannot be in the same horizontal plane with the left and right ground wires, and the cylinder three 33 extends out and drives the slide three 34 to move toward the support seat 11. When the lower clamp moves to the bottom of the left and right ground wires, the clamping part 35 is controlled to work, and the upper clamp and the lower clamp are close together to clamp the two ground wires, and then the cylinder two 31 works and extends out and drives the slide two 32 to rise. While the cylinder two 31 is extended, the cylinder three 33 continues to work and extend and drives the slide three 34 to move. The extension of the cylinder two 31 can drive the clamping part 35 to move upward, and at the same time, the extension of the cylinder three 33 can drive the clamping part 35 to move toward the support seat 11, so that the two ground wires are lifted and the lifted ground wires are bent at 90°.

[0044] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present application, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0045] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-speed cable harness automatic ground wire picking device, comprising a base (1), characterized in that: A thread taking-up unit (3) is connected to one side of the base (1), and the thread taking-up unit (3) comprises a second cylinder (31) fixedly connected to one side of the base (1), a second slide seat (32) slidably connected to one side of the second cylinder (31) and fixedly connected to the telescopic end of the second cylinder (31), a third cylinder (33) fixedly connected to the upper end of the second slide seat (32), a third slide seat (34) slidably connected to the upper end of the third cylinder (33) and fixedly connected to the telescopic end of the third cylinder (33), and a clamping portion (35) installed at the upper end of the third slide seat (34); The second cylinder (31) and the third cylinder (33) are used to drive the clamping part (35) to move in the Z-axis direction and the X-axis direction respectively, and the clamping part (35) clamps the ground wire and simultaneously moves in the Z-axis direction and the X-axis direction, and bends the ground wire by 90 degrees to pick up the wire.

2. The automatic ground wire picking device for high-speed cable harness according to claim 1, characterized in that: The upper end of the base (1) is also fixedly connected to a support seat (11), the upper end of the support seat (11) is provided with a wire groove for accommodating a wire harness, and the upper end of the support seat (11) is connected to a cover plate (12) for limiting the position of the wire harness.

3. The automatic ground wire picking device for high-speed cable harness according to claim 2, characterized in that: The upper end of the base (1) is also connected to a conductor pressing portion (2), and the conductor pressing portion (2) comprises a vertical plate (13) fixedly connected to the upper end of the base (1), a cylinder (21) fixedly connected to one side of the vertical plate (13), a slide seat (22) slidably connected to one side of the cylinder (21) and fixedly connected to the telescopic end of the cylinder (21), a pressing seat (23) fixedly connected to one side of the slide seat (22), and a pressing head (24) fixedly connected to the lower end of the pressing seat (23), wherein the pressing head (24) is used to press down the conductor in the wiring harness so that the conductor and the ground wire cannot be in the same horizontal plane.

4. The automatic ground wire picking device for high-speed cable harness according to claim 3 is characterized in that: A slide groove (14) is provided on one side of the support seat (11), and a slide seat four (5) is slidably connected in the slide groove (14); a cylinder four (4) is fixedly connected to one side of the support seat (11), and the telescopic end of the cylinder four (4) is fixedly connected to the lower end of the slide seat four (5); an extension seat (52) is fixedly connected to one side of the slide seat four (5), and the upper end of the extension seat (52) and the lower end of the pressure seat (23) are both connected to a ground wire pretreatment unit (6).

5. The automatic ground wire picking device for high-speed cable harness according to claim 4, characterized in that: The extension seat (52) is provided with a relief groove (51) inside for accommodating the conductor and the pressure head (24).

6. The automatic ground wire picking device for high-speed cable harness according to claim 5, characterized in that: The ground wire pre-processing unit (6) comprises two groups of cavities (61) respectively opened inside the extension seat (52) and the pressure seat (23), arc grooves (65) respectively opened inside the extension seat (52) and the pressure seat (23) and connected to the cavity (61), a screw rod (62) rotatably connected to the inner wall of the cavity (61), a concave seat (63) slidably connected to the inner wall of the cavity (61) and respectively screwed to the outside of the screw rod (62), and a pressure roller (64) rotatably connected to the inner wall of the concave seat (63), and a motor (67) is fixedly connected to one side of the extension seat (52) and the pressure seat (23), and the output shaft of the motor (67) is fixedly connected to one end of the screw rod (62).

7. The automatic ground wire picking device for high-speed cable harness according to claim 6, characterized in that: The arc-shaped groove (65) inside the extension seat (52) and the pressure seat (23) is used to accommodate the ground wire. The motor (67) rotates to drive the screw rod (62) to rotate and drive the concave seat (63) to move. When the concave seat (63) moves, the pressure roller (64) contacts the outer surface of the ground wire and rolls the ground wire. The rolling treatment of the ground wire eliminates local protrusions and depressions on the ground wire, so that the upper and lower end surfaces of the plurality of ground wires are flat and can stably contact the clamping portion (35).

8. The automatic ground wire picking device for high-speed cable harness according to claim 7, characterized in that: An arc-shaped electric heating element (7) is fixedly connected to the inner wall of the arc-shaped groove (65), and the arc-shaped electric heating element (7) is used to preheat the ground wire, reduce the yield strength of the ground wire, and reduce the elastic rebound generated by the ground wire during the bending process.

9. The automatic ground wire picking device for high-speed cable harness according to claim 8, characterized in that: The extension seat (52) and the pressure seat (23) are further provided with a mounting groove (66) in communication with the arc-shaped groove (65), and an ultrasonic transducer portion (8) is fixedly connected in the mounting groove (66), and a conduction portion (9) is fixedly connected to one side of the ultrasonic transducer portion (8), and a groove body is provided in the arc-shaped electric heating element (7), and one end of the conduction portion (9) passes through the groove body and extends outward.

10. The automatic ground wire picking device for high-speed cable harness according to claim 9, characterized in that: The ultrasonic wave generated by the ultrasonic transducer part (8) is transmitted to the ground wire through the conducting part (9), and the ultrasonic wave forms micro-vibrations inside the ground wire and promotes the movement of dislocations inside the material.

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