A wire harness end curling device

Abstract

The utility model discloses a wire harness end crimping device, characterized in that it comprises a vertical plate, a driving wheel installed on the vertical plate, and a supporting plate, wherein the driving wheel is rotatably installed on the front side of the vertical plate, the supporting plate is arranged directly below the driving wheel, and a driving mechanism for driving the driving wheel to rotate is installed on the rear side of the vertical plate; an arc-shaped bracket is arranged on the top surface of the supporting plate, the bottom surface of the arc-shaped bracket is arranged coaxially with the driving wheel, and a crimping gap is formed between the bottom of the arc-shaped bracket and the outer surface of the bottom of the driving wheel; a plurality of convex strips are arranged on the bottom surface of the arc-shaped bracket at intervals, and the convex strips are arranged parallel to the axis of the driving wheel; the supporting plate is arranged on the front side of the vertical plate via a height adjustment mechanism, and the height adjustment mechanism adjusts the distance between the arc-shaped bracket and the driving wheel. The utility model improves the efficiency and quality of crimping, and also ensures the quality of the product.

Description

Technical Field

[0001] The utility model relates to a wire harness, in particular to a wire harness end crimping device. Background Art

[0002] Cable harnesses are circuit connectors used between devices or between devices and power sources. When producing cable harnesses with connectors at both ends, the cable harnesses will include at least one wire. After each wire is cut to a set length, the ends of the wires need to be stripped, and then the metal inside is exposed. The metal terminal is then covered on the outside of the exposed metal, and then the metal terminal and the metal are pressed together to achieve the connection between the metal terminal and the metal. Finally, the metal terminal and the connector are connected to form a cable harness with a connector.

[0003] Among them, the metal inside the wire 101 is composed of a structure of many metal wires. After the end is peeled, there will be a lot of metal wires leaking out, and the metal wire 102 is relatively soft and easy to bend and break, which will cause the leaked metal wires to be scattered and broken. Figure 1 As shown. When it is subsequently connected to the metal terminal, some metal wires may not be inside the metal terminal, which may cause a safety hazard of leakage. The metal wires need to be manually straightened before being connected to the metal terminal. This method is inefficient, the labor intensity of the staff is relatively high, and there are certain safety hazards. Summary of the invention

[0004] The utility model aims to provide a wire harness end crimping device, which can effectively prevent the metal wires leaking out of the wire ends from being scattered, facilitate subsequent wiring, reduce the labor intensity of the staff, and ensure the product qualification rate.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a wire harness end crimping device, comprising a vertical plate, a driving wheel installed on the vertical plate and a supporting plate, wherein the driving wheel is rotatably installed on the front side of the vertical plate, the supporting plate is arranged directly below the driving wheel, and a driving mechanism for driving the driving wheel to rotate is installed on the rear side of the vertical plate;

[0006] The top surface of the support plate is provided with an arc-shaped bracket, the bottom surface of the arc-shaped bracket is coaxially arranged with the driving wheel, and a curling gap is formed between the bottom of the arc-shaped bracket and the outer surface of the bottom of the driving wheel;

[0007] A plurality of convex strips are arranged at intervals on the bottom surface of the arc-shaped bracket, and the convex strips are arranged parallel to the axis of the driving wheel;

[0008] The support plate is arranged on the front side of the vertical plate via a height adjustment mechanism, and the height adjustment mechanism adjusts the distance between the arc-shaped bracket and the driving wheel.

[0009] In the above technical solution, a plurality of annular grooves are provided on the outer surface of the driving wheel, and the plurality of annular grooves are arranged at intervals from front to rear, and annular convex strips are formed between adjacent annular grooves.

[0010] In the above technical solution, the height adjustment mechanism includes a horizontal plate and two adjusting rods. The horizontal plate is arranged directly below the support plate, and the rear end of the horizontal plate is fixedly connected to the front end surface of the vertical plate. Two screw holes are arranged on the horizontal plate at intervals, and the middle part of each adjusting rod is screwed to one of the screw holes. The top of the adjusting rod is rotatably connected to the bottom of the support plate, and the bottom of the adjusting rod is arranged directly below the horizontal plate.

[0011] In the above technical solution, the bottom of the arc-shaped bracket is provided with a stepped hole connected to the bottom surface of the support plate, the stepped hole includes an upper hole and a lower hole coaxially arranged, the diameter of the upper hole is larger than the diameter of the lower hole, and the top of the adjusting rod is provided with a limit head, the outer diameter of the limit head is larger than the diameter of the lower hole;

[0012] The limit head is arranged in the upper hole, and the top of the adjustment rod passes through the lower hole and is connected to the limit head;

[0013] An elastic member is also sleeved on the outside of the adjusting rod, the bottom of the elastic member abuts against the top surface of the horizontal plate, and the top of the elastic member abuts against the bottom surface of the supporting plate; the elastic member pushes the supporting plate to move upward and makes the bottom surface of the limit head abut against the bottom surface of the upper hole.

[0014] In the above technical solution, the elastic member is a spring, rubber or silicone.

[0015] In the above technical solution, the driving mechanism includes a driving motor, the middle portion of the driving wheel is rotatably connected to the vertical plate via a rotating shaft, and the output shaft of the driving motor is connected to the rotating shaft.

[0016] In the above technical solution, a base frame is further provided, the bottom of the vertical plate is mounted on the base frame, and a control switch for controlling the operation of the driving mechanism is provided on the base frame.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] 1. In the utility model, a crimping gap is formed between the driving wheel and the arc-shaped bracket, and a convex strip is arranged on the bottom surface of the arc-shaped bracket, so that when the metal wire is put into the crimping gap, the metal wire is directly crimped by the rotation of the driving wheel, so that the metal wire will not be scattered, broken, or fractured, which is convenient for subsequent rapid wiring with the metal terminal, reduces the labor intensity of the operator, and also ensures the qualified rate and quality of the connection with the metal terminal;

[0019] 2. In the utility model, after the outer skin of the wire is cut, there is no need to peel off the cut outer skin. When it is directly placed in the curling gap, the cut outer skin can be directly peeled off from the metal wire through the curling gap, and the curling can be directly performed during the peeling process, so that multiple metal wires are rolled together without being scattered, and the front end peeling process can be omitted. The metal wire is directly protected by the cut outer skin to prevent the metal wire from being scattered or broken between the two processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the background technology;

[0021] Figure 2a It is a schematic diagram of the structure after the outer skin of the wire harness in the first embodiment of the utility model is cut off;

[0022] Figure 2b It is a schematic diagram of the structure of the wire harness end in the first embodiment of the present invention after the outer skin is cut off and the metal wire is curled;

[0023] Figure 3 It is a schematic structural diagram of the wire harness end crimping device in the first embodiment of the utility model;

[0024] Figure 4 It is a schematic cross-sectional structural diagram of the wire harness end crimping device in the first embodiment of the present utility model.

[0025] Among them: 1. vertical plate; 2. driving wheel; 3. supporting plate; 4. driving mechanism; 5. arc bracket; 6. curling gap; 7. convex strip; 8. wiring harness; 9. outer skin; 10. metal; 11. annular groove; 12. annular convex strip; 13. horizontal plate; 14. adjusting rod; 15. screw hole; 16. upper hole; 17. lower hole; 18. limit head; 19. elastic part; 20. base frame; 21. grab head; 101. electric wire; 102. metal wire. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0027] Example 1: See Figure 2a-4As shown, a wire harness end crimping device comprises a vertical plate 1, a driving wheel 2 and a supporting plate 3 mounted on the vertical plate 1, wherein the driving wheel 2 is rotatably mounted on the front side of the vertical plate 1, the supporting plate 3 is arranged directly below the driving wheel 2, and a driving mechanism 4 for driving the driving wheel 2 to rotate is mounted on the rear side of the vertical plate 1;

[0028] The top surface of the support plate 3 is provided with an arc-shaped bracket 5, the bottom surface of the arc-shaped bracket 5 is coaxially arranged with the driving wheel 2, and a curling gap 6 is formed between the bottom of the arc-shaped bracket 5 and the outer surface of the bottom of the driving wheel 2;

[0029] A plurality of convex strips 7 are arranged at intervals on the bottom surface of the arc-shaped bracket 5, and the convex strips 7 are arranged parallel to the axis of the driving wheel 2;

[0030] The support plate 3 is disposed on the front side of the vertical plate 1 via a height adjustment mechanism, and the height adjustment mechanism adjusts the distance between the arc-shaped bracket 5 and the driving wheel 2, that is, the height adjustment mechanism adjusts the gap value of the curling gap.

[0031] In this embodiment, in actual use, the end of the wire harness 8 can directly cut off the outer skin 9 at the position of the outer skin length required to be stripped. At this time, the cut outer skin that needs to be stripped is not stripped off from the wire harness (this process is performed at the outer skin cutting device. Generally, after a certain number of skins are cut off, they are moved to the next crimping process). See Figure 2aAs shown; it is subsequently moved to the curling device for curling and peeling. In this process, a control switch will be set on the vertical plate or on the driving mechanism to control the operation of the driving mechanism. When the driving mechanism is working, it drives the driving wheel to rotate at an angle. In this embodiment, the driving mechanism drives the driving wheel to rotate clockwise. At this time, the gap value of the curling gap will be slightly smaller than the diameter of the metal 10 in the wire harness. The staff directly puts the end of the wire harness (the part with the cut outer skin) from the right end of the curling gap. In this process, since the outer skin is a flexible structure, the driving wheel will give the outer skin and the end of the wire harness a force to move and rotate toward the inside of the curling gap. At this time, when the end of the wire harness with the cut outer skin enters the curling gap, the staff can put the end of the wire harness into the curling gap with a slight slope. In the gap, during this process, due to the slight inclination, the outer skin will be driven to rotate by the convex strip between the driving wheel and the top of the arc-shaped bracket. Since the connection between the outer skin and the main body of the wire harness is cut off, the outer skin will detach from the end of the wire harness during the rotation. After detachment, the metal (multi-strand metal wire) at the end of the wire harness will directly leak out to the outside of the end of the wire harness. Due to the existence of the convex strip, it plays a role of friction and bulge, and the driving wheel will also give the metal a force to move clockwise along the curling gap. In addition, the limiting effect of the convex strip will drive the metal to curl, that is, the multi-strand metal wire in the metal is wound into a whole strand without being scattered. See Figure 2b At the same time, when the end of the wire harness moves along the crimping gap, the staff also applies an outward pulling force to the wire harness, so that the end moves forward and gradually escapes from the crimping gap, so that the metal end has more crimps, which can better prevent the end of the metal wire from being scattered and other problems, and ensure the crimping quality (and when the staff pulls the end of the wire harness forward, even if the outer skin is not rolled off, it will be limited and peeled off from the end of the wire harness).

[0032] At the same time, the setting of the height adjustment mechanism can adjust the crimping gap value according to the wire harnesses with different outer diameters, thereby adjusting the crimping gap value according to the products with different diameters to improve the scope of application.

[0033] See also Figure 3 , 4 As shown, a plurality of annular grooves 11 are provided on the outer surface of the driving wheel 2 . The plurality of annular grooves 11 are arranged at intervals from front to rear, and annular convex strips 12 are formed between adjacent annular grooves 11 .

[0034] The existence of the annular groove and the annular convex strip is due to the different lengths of the metal wires exposed at different ends of the wire harness. In order to ensure that the end of the wire harness can be smoothly driven into the curling gap during the rotation process, and at the same time, when the staff applies external force to pull the wire harness forward, the cut outer skin can be smoothly detached from the end of the wire harness. The existence of the annular convex strip gives the outer skin an axial limiting force, so that the outer skin can be smoothly detached from the end of the wire harness. At the same time, even if the metal wire is curled, the limiting convex strip can also play a certain axial limiting role, so that when the wire harness is pulled forward, the metal wire is straightened as much as possible along the axial direction of the wire harness, so that all the metal wires at the end of the wire harness are entangled and rolled together as much as possible, thereby ensuring the curling quality.

[0035] See also Figure 3 , 4 As shown, the height adjustment mechanism includes a transverse plate 13 and two adjustment rods 14. The transverse plate 13 is arranged directly below the support plate 3, and the rear end of the transverse plate 13 is fixedly connected to the front end surface of the vertical plate 1. Two screw holes 15 are arranged on the transverse plate 13 at intervals. The middle part of each adjustment rod 14 is screwed to one of the screw holes 15. The top of the adjustment rod 14 is rotatably connected to the bottom of the support plate 3, and the bottom of the adjustment rod 14 is arranged directly below the transverse plate 13.

[0036] By rotating the adjusting rod, the distance between the adjusting rod and the horizontal plate can be adjusted, thereby adjusting the distance between the supporting plate and the driving wheel, and then adjusting the curling gap value to be suitable for curling products of different sizes. Further, in order to facilitate the rotation of the adjusting rod, a gripping head 21 is provided at the bottom of the adjusting rod, so that it is convenient for the staff to grasp the gripping head to drive the adjusting rod to rotate.

[0037] See also Figure 3 , 4 As shown, the bottom of the arc-shaped bracket 5 is provided with a stepped hole connected to the bottom surface of the support plate 3, and the stepped hole includes an upper hole 16 and a lower hole 17 coaxially arranged, and the diameter of the upper hole 16 is larger than the diameter of the lower hole 17. The top of the adjusting rod 14 is provided with a limit head 18, and the outer diameter of the limit head 18 is larger than the diameter of the lower hole 17;

[0038] The limit head 18 is disposed in the upper hole, and the top of the adjustment rod 14 passes through the lower hole 17 and is connected to the limit head 18;

[0039] An elastic member 19 is also sleeved on the outside of the adjusting rod 14, the bottom of the elastic member 19 abuts against the top surface of the cross plate 13, and the top of the elastic member 19 abuts against the bottom surface of the support plate 3; the elastic member 19 pushes the support plate 3 to move upward and makes the bottom surface of the limit head 18 abut against the bottom surface of the upper hole 16.

[0040] The elastic member is a spring, rubber or silicone. In this embodiment, the elastic member is a spring.

[0041] In this embodiment, the support plate can move up and down relative to the adjusting rod, and the support plate and the adjusting rod are not fixedly connected. Therefore, in order to ensure that the support plate is as close to the driving wheel as possible, but when the outer diameter of the wire harness end changes (when the cut outer skin is peeled off from the wire harness end, the outer diameter may increase when the outer skin is curled, and the outer diameter may increase when the metal wire is curled, or the outer diameter of the product ends in the same batch may be different), since the elastic member always gives the support plate an upward thrust, the curling gap will always be slightly smaller than the outer diameter of the metal wire leaking out of the wire harness end. In this way, during the curling process, if the end diameter is larger than the curling gap, the support plate will also be subjected to a downward extrusion force to compress the elastic member. However, due to the elastic force of the elastic member, the driving wheel and the arc-shaped bracket will still tightly support the product, ensuring the normal curling of the product without affecting the normal movement and curling of the product, and the product end will not be flattened or broken during curling, thereby effectively ensuring the curling quality.

[0042] Wherein, the driving mechanism includes a driving motor, the middle part of the driving wheel is rotatably connected to the vertical plate via a rotating shaft, and the output shaft of the driving motor is connected to the rotating shaft.

[0043] See also Figure 3 , 4 As shown, a base frame 20 is also provided, and the bottom of the vertical board 1 is installed on the base frame 20. The base frame 20 is provided with a control switch (the control switch is not shown in the figure) for controlling the operation of the driving mechanism.

[0044] The bottom frame is directly used to support the vertical plate. The bottom frame can be placed directly on the ground or on a workbench to ensure the stability of the curling device during operation. The control switch controls the operation of the drive motor and starts and stops the drive motor.

Claims

1. A wire harness end crimping device, characterized in that: It comprises a vertical plate, a driving wheel mounted on the vertical plate and a supporting plate, wherein the driving wheel is rotatably mounted on the front side of the vertical plate, the supporting plate is arranged directly below the driving wheel, and a driving mechanism for driving the driving wheel to rotate is mounted on the rear side of the vertical plate; The top surface of the support plate is provided with an arc-shaped bracket, the bottom surface of the arc-shaped bracket is coaxially arranged with the driving wheel, and a curling gap is formed between the bottom of the arc-shaped bracket and the outer surface of the bottom of the driving wheel; A plurality of convex strips are arranged at intervals on the bottom surface of the arc-shaped bracket, and the convex strips are arranged parallel to the axis of the driving wheel; The support plate is arranged on the front side of the vertical plate via a height adjustment mechanism, and the height adjustment mechanism adjusts the distance between the arc-shaped bracket and the driving wheel.

2. The wire harness end crimping device according to claim 1, characterized in that: A plurality of annular grooves are arranged on the outer surface of the driving wheel, and the plurality of annular grooves are arranged at intervals from front to rear, and annular convex strips are formed between adjacent annular grooves.

3. The wire harness end crimping device according to claim 1, characterized in that: The height adjustment mechanism includes a horizontal plate and two adjustment rods. The horizontal plate is arranged directly below the support plate, and the rear end of the horizontal plate is fixedly connected to the front end surface of the vertical plate. Two screw holes are arranged on the horizontal plate at intervals, and the middle part of each adjustment rod is screwed to one of the screw holes. The top of the adjustment rod is rotatably connected to the bottom of the support plate, and the bottom of the adjustment rod is arranged directly below the horizontal plate.

4. The wire harness end crimping device according to claim 3, characterized in that: The bottom of the arc-shaped bracket is provided with a stepped hole connected with the bottom surface of the support plate, the stepped hole includes an upper hole and a lower hole arranged coaxially, the diameter of the upper hole is larger than the diameter of the lower hole, and the top of the adjusting rod is provided with a limit head, the outer diameter of the limit head is larger than the diameter of the lower hole; The limit head is arranged in the upper hole, and the top of the adjustment rod passes through the lower hole and is connected to the limit head; An elastic member is also sleeved on the outside of the adjusting rod, the bottom of the elastic member abuts against the top surface of the horizontal plate, and the top of the elastic member abuts against the bottom surface of the supporting plate; the elastic member pushes the supporting plate to move upward and makes the bottom surface of the limit head abut against the bottom surface of the upper hole.

5. The wire harness end crimping device according to claim 4, characterized in that: The elastic member is a spring, rubber or silicone.

6. The wire harness end crimping device according to claim 1, characterized in that: The driving mechanism comprises a driving motor, the middle portion of the driving wheel is rotationally connected to the vertical plate via a rotating shaft, and the output shaft of the driving motor is connected to the rotating shaft.

7. The wire harness end crimping device according to claim 1, characterized in that: A base frame is also provided, the bottom of the vertical plate is installed on the base frame, and a control switch for controlling the operation of the driving mechanism is provided on the base frame.

Images