Terminal poor crimping detection device

Abstract

The utility model relates to the technical field of electricity, in particular to a terminal pressing defect detection device, which comprises a bottom plate, an upper cutting die, a lower cutting die, a sensor module and a limiting mechanism, the limiting mechanism comprises a mounting frame, a rotating assembly, a gear, a tooth block and a connecting frame, when the upper cutting die needs to be moved, the rotating assembly is rotated to drive the gear to rotate, and the lower cutting die is driven to move. The gear drives the tooth block to move, the tooth block drives the upper cutting die on the connecting frame to move towards one side close to the lower cutting die until the upper cutting die moves to a preset position, and then terminal crimping detection can be carried out. The moving track of the upper cutting die is limited through the limiting mechanism, so that inaccurate pressure data caused by dislocation of the upper cutting die can be effectively prevented; therefore, the problem that the judgment result is inaccurate due to the fact that the contact position deviates when a worker operates the upper cutting die and the lower cutting die is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity, in particular to a device for detecting poor terminal crimping. Background Art

[0002] A terminal crimping device refers to cutting a wire with an insulating rubber sheath of a specified length, stripping the insulating rubber sheath of a required length at the end of the wire, and then sending it together with a terminal with an insulating rubber presser foot for fixing the insulating rubber and a core wire presser foot for fixing the core wire to a specified position. The end of the insulated rubber wire is placed on the lower die mold with the terminal, and the upper die mold coming from above respectively punches the above-mentioned insulating rubber presser foot and core wire presser foot to compress the terminal into a set shape. By continuously repeating such actions, a large number of wires with crimped terminals can be automatically produced. For such a terminal crimping device, some poor crimping phenomena may occur during terminal crimping.

[0003] Currently, the prior art (CN 208849214 U) discloses a device for detecting poor terminal crimping. It is applicable to a terminal crimping device in which a crimping terminal with presser feet is pressed down from above by a first upper die mold, a second upper die mold and a first lower die mold, a second lower die mold that bears from below on an insulated rubber wire with the insulating rubber stripped. In the sensor module, a first deformation probe capable of detecting the pressure generated on the first lower die mold for the core wire presser foot of the terminal crimping device during terminal crimping and a second deformation probe capable of detecting the pressure generated on the second lower die mold for the insulating rubber presser foot are provided. When the above-mentioned terminal crimping device can crimp normally, a reference waveform is generated and saved according to the pressures changing with time output by the two deformation probes respectively, and during inspection, the output pressure waveforms of the two deformation probes are compared with their respective reference waveforms to determine whether the terminal crimping is good.

[0004] Adopting the above method, when the staff operates the upper die mold and the lower die mold, the contact position may shift, resulting in deviation of the pressure data, and further leading to inaccurate judgment results of the sensor module and inability to detect poor terminal crimping. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a device for detecting poor terminal crimping, aiming to solve the problem that inaccurate judgment results may occur due to the shift of the contact position when the staff operates the upper die mold and the lower die mold.

[0006] To achieve the above purpose, the utility model provides a device for detecting poor terminal crimping, which includes a bottom plate, an upper die mold, a lower die mold, a sensor module and a limiting mechanism. The limiting mechanism includes a mounting frame, a rotating assembly, a gear, a tooth block and a connecting frame;

[0007] The lower cutting die is arranged on the bottom plate, the sensor module is arranged on one side of the lower cutting die, the mounting frame is fixedly connected to the bottom plate and is located on one side of the mounting frame, the rotating assembly is arranged on the mounting frame, the gear is rotatably connected to the mounting frame and is connected to the rotating assembly, the tooth block is engaged with the gear and is slidably connected to the mounting frame, the connecting frame is arranged on one side of the tooth block, and the upper cutting die is arranged on the connecting frame.

[0008] Wherein, the rotating assembly includes a turntable, a worm and a worm gear. The turntable is rotatably connected to the mounting frame and is located on the mounting frame. The worm is fixedly connected to the turntable and is rotatably connected to the mounting frame. The worm gear is rotatably connected to the mounting frame, is engaged with the worm, and is fixedly connected to the gear.

[0009] Wherein, the rotating assembly further includes a turning handle and a torsion spring. The turning handle is rotatably connected to the turntable and is located on one side of the turntable. The torsion spring is fixedly connected to the turning handle and is fixedly connected to the turntable.

[0010] Wherein, the connecting frame includes a frame body, a rotating rod and a resisting plate. The frame body is fixedly connected to the tooth block and is located on one side of the tooth block. The rotating rod is threadedly connected to the frame body and penetrates through the frame body. The resisting plate is rotatably connected to the rotating rod and is located on one side of the resisting plate.

[0011] Wherein, the connecting frame further includes a guide rod and a limiting block. The guide rod is slidably connected to the frame body, penetrates through the frame body, and is fixedly connected to the resisting plate. The limiting block is fixedly connected to the guide rod and is located on one side of the guide rod away from the resisting plate.

[0012] Wherein, the limiting mechanism further includes a guide rail and a guiding block. The guide rail is fixedly connected to the mounting frame and is located on one side of the mounting frame. The guiding block is fixedly connected to the tooth block, is slidably connected to the guide rail, and is located between the guide rail and the tooth block.

[0013] Wherein, the limiting mechanism further includes a clamping block, a return spring and a pull rod. The clamping block is slidably connected to the mounting frame and is located on one side of the mounting frame. The return spring is fixedly connected to the clamping block and is fixedly connected to the mounting frame and is located between the mounting frame and the clamping block. The pull rod is fixedly connected to the clamping block and penetrates through the mounting frame.

[0014] A terminal crimping defect detection device of the present utility model, the bottom plate provides installation conditions for the lower die and the limiting mechanism. The terminal crimping can be detected through the upper die, the lower die and the sensor module. When it is necessary to move the upper die, rotate the rotating assembly, the rotating assembly drives the gear to rotate, the gear drives the tooth block to move, and the tooth block drives the upper die on the connecting frame to move towards the side close to the lower die. When the upper die moves to a preset position, the terminal crimping detection can be carried out. The present utility model restricts the movement track of the upper die through the limiting mechanism, which can effectively prevent inaccurate pressure data caused by the dislocation of the upper die, thereby solving the problem that the judgment result may be inaccurate due to the offset of the contact position when the operator operates the upper die and the lower die. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0016] Figure 1 It is a schematic structural diagram of a terminal crimping defect detection device of the present utility model.

[0017] Figure 2 It is a cross-sectional view of a terminal crimping defect detection device of the present utility model along the direction of the worm.

[0018] Figure 3 It is a cross-sectional view of a terminal crimping defect detection device of the present utility model along the direction of the gear.

[0019] Figure 4 It is a cross-sectional view of a terminal crimping defect detection device of the present utility model along the direction of the sensor module.

[0020] In the figure: 1 - bottom plate, 2 - upper die, 3 - lower die, 4 - sensor module, 5 - limiting mechanism, 6 - mounting bracket, 7 - rotating assembly, 8 - gear, 9 - tooth block, 10 - connecting frame, 11 - turntable, 12 - worm, 13 - worm gear, 14 - turning handle, 15 - torsion spring, 16 - frame body, 17 - rotating rod, 18 - abutting plate, 19 - guide rod, 20 - limiting block, 21 - guide rail, 22 - guiding block, 23 - clamping block, 24 - return spring, 25 - pull rod. Detailed Embodiment

[0021] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0022] Please refer to Figures 1-4 Figures 1-4 , the present utility model provides a device for detecting poor terminal crimping, which includes a bottom plate 1, an upper die 2, a lower die 3, a sensor module 4 and a limiting mechanism 5. The limiting mechanism 5 includes a mounting bracket 6, a rotating assembly 7, a gear 8, a tooth block 9 and a connecting frame 10;

[0023] The lower die 3 is arranged on the bottom plate 1. The sensor module 4 is arranged on one side of the lower die 3. The mounting bracket 6 is fixedly connected to the bottom plate 1 and is located on one side of the mounting bracket 6. The rotating assembly 7 is arranged on the mounting bracket 6. The gear 8 is rotatably connected to the mounting bracket 6 and is connected to the rotating assembly 7. The tooth block 9 meshes with the gear 8 and is slidably connected to the mounting bracket 6. The connecting frame 10 is arranged on one side of the tooth block 9. The upper die 2 is arranged on the connecting frame 10.

[0024] In this embodiment, the bottom plate 1, the upper die 2, the lower die 3 and the sensor module 4 are all in the prior art which records "a terminal crimping device including a first upper die, a second upper die for pressing a crimping terminal with a pressing foot from above through respective core wire pressing feet and insulation skin pressing feet on an insulated rubber wire with the insulation skin peeled off, and a first lower die and a second lower die for bearing below. In the sensor module, a first deformation probe for detecting the pressure generated on the first lower die for the core wire pressing foot of the terminal crimping device when the terminal is crimped and a second deformation probe for detecting the pressure generated on the second lower die for the insulation skin pressing foot are provided. When the above terminal crimping device can crimp normally, a reference waveform is generated and saved according to the pressures changing with time output by the two deformation probes respectively. During inspection, the output pressure waveforms of the two deformation probes are compared with their respective reference waveforms to determine whether the terminal crimping is good". The bottom plate 1 provides an installation condition for the lower die 3 and the limiting mechanism 5. The terminal crimping can be detected through the upper die 2, the lower die 3 and the sensor module 4. When it is necessary to move the upper die 2, rotate the rotating assembly 7. The rotating assembly 7 drives the gear 8 to rotate. The gear 8 drives the tooth block 9 to move. The tooth block 9 drives the upper die 2 on the connecting frame 10 to move towards the side close to the lower die 3. When the upper die 2 moves to a preset position, the terminal crimping detection can be carried out. The present utility model can effectively prevent inaccurate pressure data caused by the dislocation of the upper die 2 by restricting the movement track of the upper die 2 through the limiting mechanism 5, thereby solving the problem that the judgment result may be inaccurate due to the offset of the contact position when the operator operates the upper die and the lower die.

[0025] Further, the rotating assembly 7 includes a turntable 11, a worm 12, and a worm gear 13. The turntable 11 is rotatably connected to the mounting bracket 6 and is located on the mounting bracket 6. The worm 12 is fixedly connected to the turntable 11 and is rotatably connected to the mounting bracket 6. The worm gear 13 is rotatably connected to the mounting bracket 6, meshes with the worm 12, and is fixedly connected to the gear 8.

[0026] In this embodiment, rotating the turntable 11 can drive the worm 12 to rotate, the rotation of the worm 12 can drive the worm gear 13 to rotate, and the rotation of the worm gear 13 can drive the gear 8 to rotate.

[0027] Further, the rotating assembly 7 further includes a turning handle 14 and a torsion spring 15. The turning handle 14 is rotatably connected to the turntable 11 and is located on one side of the turntable 11. The torsion spring 15 is fixedly connected to the turning handle 14 and is fixedly connected to the turntable 11.

[0028] In this embodiment, turning out the turning handle 14 allows the turning handle 14 to be held and the turntable 11 to be rotated, and the turning handle 14 can be reset by the resilience of the torsion spring 15.

[0029] Further, the connecting frame 10 includes a frame body 16, a rotating rod 17, and a resisting plate 18. The frame body 16 is fixedly connected to the tooth block 9 and is located on one side of the tooth block 9. The rotating rod 17 is threadedly connected to the frame body 16 and penetrates through the frame body 16. The resisting plate 18 is rotatably connected to the rotating rod 17 and is located on one side of the resisting plate 18.

[0030] In this embodiment, the frame body 16 provides an installation condition for the rotating rod 17 and the resisting plate 18. Place the upper die 2 on the frame body 16, rotate the rotating rod 17, and the rotating rod 17 drives the resisting plate 18 to move towards the side close to the upper die 2 until the resisting plate 18 contacts the upper die 2 and resists the upper die 2, then the upper die 2 can be fixed on the frame body 16.

[0031] Further, the connecting frame 10 further includes a guide rod 19 and a limiting block 20. The guide rod 19 is slidably connected to the frame body 16 and penetrates through the frame body 16, and is fixedly connected to the resisting plate 18. The limiting block 20 is fixedly connected to the guide rod 19 and is located on the side of the guide rod 19 away from the resisting plate 18.

[0032] In this embodiment, when the abutting plate 18 moves, it drives the guide rod 19 to slide on the frame 16. The guide rod 19 can guide and limit the abutting plate 18, improving the stability of the abutting plate 18 during movement. The limiting block 20 can limit the guide rod 19 to prevent the guide rod 19 from moving out of the preset range.

[0033] Further, the limiting mechanism 5 further includes a guide rail 21 and a guide block 22. The guide rail 21 is fixedly connected to the mounting frame 6 and is located on one side of the mounting frame 6. The guide block 22 is fixedly connected to the tooth block 9 and is slidably connected to the guide rail 21 and is located between the guide rail 21 and the tooth block 9.

[0034] In this embodiment, the guide rail 21 provides an installation condition for the guide block 22. The guide block 22 can guide the tooth block 9, improving the stability of the tooth block 9 during movement.

[0035] Further, the limiting mechanism 5 further includes a clamping block 23, a return spring 24 and a pull rod 25. The clamping block 23 is slidably connected to the mounting frame 6 and is located on one side of the mounting frame 6. The return spring 24 is fixedly connected to the clamping block 23 and is fixedly connected to the mounting frame 6 and is located between the mounting frame 6 and the clamping block 23. The pull rod 25 is fixedly connected to the clamping block 23 and penetrates through the mounting frame 6.

[0036] In this embodiment, the turntable 11 has a plurality of clamping holes. The clamping block 23 can cooperate with the corresponding clamping holes to limit the turntable 11. The return spring force of the return spring 24 can pop the clamping block 23 into the corresponding clamping hole, and the pull rod 25 can move the clamping block 23 out of the clamping hole.

[0037] Working process:

[0038] When it is necessary to move the upper die 2, the clamping block 23 is moved out of the clamping hole through the pull rod 25 to release the limit on the turntable 11. Hold the turning handle 14 and turn the turntable 11. The turntable 11 drives the worm 12 to rotate, the worm 12 drives the worm gear 13 to rotate, the worm gear 13 drives the tooth block 9 to move, and the tooth block 9 drives the upper die 2 on the frame 16 to move towards the side close to the lower die 3. When the upper die 2 moves to the preset position, terminal pressing detection can be performed. The utility model can effectively prevent inaccurate pressure data caused by the misalignment of the upper die 2 by restricting the movement trajectory of the upper die 2 through the limiting mechanism 5, thereby solving the problem that the judgment result may be inaccurate due to the offset of the contact position when the staff operates the upper die 2 and the lower die 3.

[0039] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A terminal crimping defect detection device, comprising a base plate, an upper cutting die, a lower cutting die and a sensor module, wherein the lower cutting die is arranged on the base plate, and the sensor module is arranged on one side of the lower cutting die, characterized in that: It also includes a limiting mechanism, which includes a mounting frame, a rotating assembly, a gear, a gear block and a connecting frame; The mounting frame is fixedly connected to the base plate and is located on one side of the mounting frame. The rotating assembly is arranged on the mounting frame. The gear is rotatably connected to the mounting frame and is connected to the rotating assembly. The tooth block is meshed with the gear and is slidably connected to the mounting frame. The connecting frame is arranged on one side of the tooth block, and the upper cutting die is arranged on the connecting frame.

2. The terminal crimping defect detection device according to claim 1, characterized in that: The rotating assembly includes a turntable, a worm and a worm wheel. The turntable is rotatably connected to the mounting frame and is located on the mounting frame. The worm is fixedly connected to the turntable and rotatably connected to the mounting frame. The worm wheel is rotatably connected to the mounting frame, meshes with the worm, and is fixedly connected to the gear.

3. The terminal crimping defect detection device according to claim 2, characterized in that: The rotating assembly further comprises a rotating handle and a torsion spring. The rotating handle is rotatably connected to the rotating disk and is located on one side of the rotating disk. The torsion spring is fixedly connected to the rotating handle and the rotating disk.

4. The terminal crimping defect detection device according to claim 3, characterized in that: The connecting frame includes a frame body, a rotating rod and a supporting plate. The frame body is fixedly connected to the tooth block and is located on one side of the tooth block. The rotating rod is threadedly connected to the frame body and passes through the frame body. The supporting plate is rotatably connected to the rotating rod and is located on one side of the supporting plate.

5. The terminal crimping defect detection device according to claim 4, characterized in that: The connecting frame also includes a guide rod and a limit block. The guide rod is slidably connected to the frame body, passes through the frame body, and is fixedly connected to the supporting plate. The limit block is fixedly connected to the guide rod and is located on a side of the guide rod away from the supporting plate.

6. The terminal crimping defect detection device according to claim 5, characterized in that: The limiting mechanism also includes a guide rail and a guide block, wherein the guide rail is fixedly connected to the mounting frame and is located on one side of the mounting frame, and the guide block is fixedly connected to the tooth block and slidably connected to the guide rail and is located between the guide rail and the tooth block.

7. The terminal crimping defect detection device according to claim 6, characterized in that: The limiting mechanism also includes a card block, a return spring and a pull rod. The card block is slidably connected to the mounting frame and is located on one side of the mounting frame. The return spring is fixedly connected to the card block and to the mounting frame and is located between the mounting frame and the card block. The pull rod is fixedly connected to the card block and passes through the mounting frame.

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