Terminal crimping quality inspection device

Abstract

The utility model provides a terminal crimping quality inspection device, and relates to the quality inspection device field, the terminal crimping quality inspection device comprises a crimping device and detection racks, the upper side of the crimping device is provided with a crimping cylinder, the lower end of the crimping cylinder is connected with a crimping plate, the lower side of the crimping plate is provided with a pressure bearing bench, the detection racks are arranged on two sides of the crimping device, and the pressure bearing bench is provided with a pressure bearing bench. The device comprises a detection frame, a clamping assembly is slidably connected to the interior of the detection frame, a connecting rod is connected to the outer side of the clamping assembly, a tension sensor is connected to the outer end of the connecting rod, a first air cylinder is connected to the outer end of the tension sensor, the clamping assembly comprises a clamping frame, a clamping groove is formed in the clamping frame, and a containing groove is formed in the lower side of the clamping groove. The terminal crimping device provided by the utility model solves the problems of quality inspection limitation and low crimping and quality inspection efficiency of the existing terminal crimping device.

Description

Technical Field

[0001] The utility model relates to the technical field of quality inspection devices, in particular to a terminal crimping quality inspection device. Background Art

[0002] Terminal crimping refers to the cable production process of crimping the exposed core wires with the insulated terminals. The production efficiency of terminal crimping directly affects the production efficiency of the cables. After searching, the prior art (publication number: CN213071680U) records "a high-efficiency terminal crimping device, including a frame and a crimping device body arranged on the frame, a detection mechanism for detecting the crimping position accuracy of the finished product is arranged on the frame downstream of the crimping device body, a discharge arm is rotatably arranged on the frame, the rotation center line of the discharge arm is vertical, a clamping claw for grasping the finished product and moving the finished product to the detection mechanism is arranged on the discharge arm, a discharge mechanism for controlling the rotation of the discharge arm is arranged on the frame, and a storage mechanism for classifying and collecting qualified finished products and unqualified finished products is arranged on the frame. This application has the effect of automatic quality inspection and classified discharge."

[0003] Although the high-efficiency terminal crimping device in the prior art can achieve the effect of detection and classification to determine whether it is qualified, there are still some shortcomings: the infrared spacing sensor involved in the existing terminal crimping device can only detect the crimping position, and in actual processing, there may be a problem that the crimping position is accurate, but the crimping force is poor, resulting in the wire harness and the terminal being easily separated. Therefore, the detection of terminal crimping is relatively limited. Secondly, only one wire harness and terminal can be crimped and detected at a time, resulting in low efficiency of crimping quality inspection. Utility Model Content

[0004] In order to overcome the defects of the prior art, a terminal crimping quality inspection device is provided to solve the problems of quality inspection limitations of the existing terminal crimping devices and low efficiency of crimping and quality inspection.

[0005] To achieve the above-mentioned purpose, a terminal crimping quality inspection device is provided, comprising: a crimping device and a detection frame, a crimping cylinder is provided on the upper side of the crimping device, and the lower end of the crimping cylinder is connected to a crimping plate, and a pressure platform is provided on the lower side of the crimping plate, the detection frame is arranged on both sides of the crimping device, and a clamping assembly is slidably connected inside the detection frame, and a connecting rod is connected to the outer side of the clamping assembly, the outer end of the connecting rod is connected to a tension sensor, and the outer end of the tension sensor is connected to a first cylinder, the clamping assembly comprises a clamping frame, and a clamping groove is opened inside the clamping frame, and a placement groove is provided on the lower side of the clamping groove.

[0006] Furthermore, a telescopic rod is connected to the outer wall of the crimping plate, a pre-pressing block is connected to the lower end of the telescopic rod, and a horizontal lifting rod is connected to the outer side of the telescopic rod.

[0007] Furthermore, a plurality of arc grooves are provided on the upper end surface of the pressure bearing platform, and a terminal body is provided between the pressure bearing platform and the pre-pressing block.

[0008] Furthermore, the lower end of the clamping frame is connected to a connecting plate, and the upper and lower ends of the connecting plate are connected to sliding blocks, and a second cylinder is provided on the upper side of the clamping frame and between the connecting plates.

[0009] Furthermore, a clamping block is slidably connected to the inner upper groove wall of the clamping groove, and the clamping block is connected to the lower end of the second cylinder, and the clamping groove is configured as an N-shaped groove structure opening forward.

[0010] Furthermore, the detection frame is configured as a rectangular frame structure, and a horizontal cross plate is provided in the middle of the rectangular frame, and sliders on the upper and lower ends of the connecting plate are slidably connected to the upper inner frame wall and the cross plate of the rectangular frame respectively.

[0011] Furthermore, an electric control box is provided on the lower side of the crimping device, and an alarm is provided on the upper side of the crimping device.

[0012] The beneficial effects of the utility model are:

[0013] 1. When in use, first insert the bare wire of the harness into the wiring hole of the terminal body, then place the terminal body into the arc groove on the upper side of the pressure platform, pre-tighten it by the telescopic rod and the pre-pressing block, and then place the harness into the placement groove in the clamping frame. Keep multiple harnesses in parallel arrangement during the process, and then drive the clamping block downward to press the harness by the second cylinder, and then start the crimping cylinder to drive the crimping plate to move downward to press the terminal body to deform so that the bare wire of the harness inside is pressed, thereby achieving the effect of facilitating the crimping of multiple harnesses and terminal bodies at the same time;

[0014] 2. During quality inspection, the first cylinder is started to contract so that the clamping frame is pulled as a whole inside the inspection frame through the tension sensor and the connecting rod. At this time, the tension sensor produces a tension change within the preset tension value range. When the connection between a certain wire harness and the terminal body is disconnected within the preset tension value, it is judged that the connection between the wire harness and the terminal body is unqualified, and then the cylinder is depressurized and the unqualified products are picked out, so that the crimping firmness of the wire harness and the terminal body can be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamping frame according to an embodiment of the utility model.

[0017] Figure 3 For the utility model embodiment Figure 1 Schematic diagram of the structure at point A in the middle.

[0018] Figure 4 For the utility model embodiment Figure 1 Schematic diagram of the structure at point B in the middle.

[0019] Figure 5 This is a schematic diagram of the terminal body structure of an embodiment of the utility model.

[0020] In the figure: 1. Crimping device; 11. Crimping cylinder; 12. Crimping plate; 13. Pressure platform; 14. Telescopic rod; 15. Lifting rod; 16. Pre-pressing block; 2. Detection frame; 21. First cylinder; 22. Clamping assembly; 221. Clamping frame; 222. Connecting plate; 223. Second cylinder; 224. Clamping block; 225. Clamping groove; 226. Placement groove; 23. Tension sensor; 24. Connecting rod; 3. Terminal body. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 5 As shown, the utility model provides a terminal crimping quality inspection device, comprising: a crimping device 1 and a detection frame 2, a crimping cylinder 11 is provided on the upper side of the crimping device 1, and the lower end of the crimping cylinder 11 is connected to a crimping plate 12, and a pressure platform 13 is provided on the lower side of the crimping plate 12, the detection frame 2 is arranged on both sides of the crimping device 1, and a clamping assembly 22 is slidably connected inside the detection frame 2, and a connecting rod 24 is connected to the outer side of the clamping assembly 22, a tension sensor 23 is connected to the outer end of the connecting rod 24, and a first cylinder 21 is connected to the outer end of the tension sensor 23, the clamping assembly 22 comprises a clamping frame 221, and a clamping groove 225 is opened inside the clamping frame 221, and a placement groove 226 is provided on the lower side of the clamping groove 225, an electric control box is provided on the lower side of the crimping device 1, and an alarm is provided on the upper side of the crimping device 1.

[0022] In this embodiment, the crimping device 1 and the inspection frame 2 constitute the main structure of the terminal crimping quality inspection device involved in this application, achieving the integrated operation effect of crimping and quality inspection of the wire harness and the terminal.

[0023] It should be noted that the specifications of the wire harnesses crimped at one time in the present application are the same, and are set to be thicker hard wire harnesses, so that they can maintain an approximately even force effect after being clamped by the clamping assembly 22. When testing a thinner soft wire harness, in order to maintain a relatively even pulling force, all the wire harnesses are straightened and clamped inside the clamping assembly 22 to keep them straight during installation, and then the button controlling the first cylinder 21 is started to tighten them. When the wire harness is clamped, the pressure of the crimped plate 12 of the terminal body 3 remains unchanged after crimping, thereby achieving the positioning of one end of the terminal body 3, and then facilitating the pulling of the wire harness into the clamping assembly 22 for straightening and clamping.

[0024] Specifically, all the cylinders involved in the present application are controlled by independent control buttons. Secondly, an infrared distance sensor is installed on the outer wall of the crimping plate 12 and is electrically connected to the alarm, so that when the wiring harness and the terminal body 3 are disconnected and the connection position changes, the alarm can be activated by the internal control unit (PLC) of the electrical control box to sound an alarm.

[0025] like Figure 1 and Figure 3 As shown, the outer wall of the crimping plate 12 is connected to a telescopic rod 14, and the lower end of the telescopic rod 14 is connected to a pre-pressing block 16, and the outer side of the telescopic rod 14 is connected to a horizontal lifting rod 15, a plurality of arc grooves are provided on the upper end surface of the pressure platform 13, and a terminal body 3 is provided between the pressure platform 13 and the pre-pressing block 16.

[0026] Specifically, a magnetic limit block is provided inside the arc groove, so that when installing the terminal body 3, one end of the terminal body 3 is placed close to the magnetic limit block. Before that, the pre-compression block 16 needs to be moved up by the lifting rod 15, and then the pre-compression block 16 is released to pre-tighten the flush terminal body 3.

[0027] like Figure 1 and Figure 2 As shown, the lower end of the clamping frame 221 is connected to a connecting plate 222, and the upper and lower ends of the connecting plate 222 are connected to sliders, and a second cylinder 223 is provided on the upper side of the clamping frame 221 and between the connecting plates 222, a clamping block 224 is slidably connected to the inner upper groove wall of the clamping groove 225, and the clamping block 224 is connected to the lower end of the second cylinder 223, and the clamping groove 225 is set as an N-shaped groove structure opening forward, the detection frame 2 is set as a rectangular frame structure, and a horizontal cross plate is provided in the middle of the rectangular frame, and the sliders at the upper and lower ends of the connecting plate 222 are respectively slidably connected to the upper inner frame wall and the cross plate of the rectangular frame.

[0028] Specifically, the connecting plates 222 at the upper and lower ends of the clamping frame 221 keep the clamping frame 221 in a relatively stable state. At the same time, the tension threshold setting of the tension sensor 23 before quality inspection also takes into account the gravity of the clamping frame 221 and the horizontal friction force with the detection frame 2.

[0029] As a preferred embodiment, the clamping groove 225 and the placement groove 226 are provided to facilitate the overall stacking and clamping of the wire harness so that they do not interfere with each other under the action of tension.

[0030] When in use, first insert the bare wires of the wiring harness into the wiring hole of the terminal body, then place the terminal body into the arc groove on the upper side of the pressure platform, pre-tighten it by the telescopic rod and the pre-pressure block, and then place the wiring harness into the placement groove in the clamping frame, keep multiple wiring harnesses in parallel during the process, and then drive the clamping block downward to press the wiring harness, and then start the crimping cylinder to drive the crimping plate to move downward to press the terminal body to deform so that the internal bare wires of the wiring harness are compressed, thereby achieving the effect of facilitating the crimping of multiple wiring harnesses and terminal bodies at the same time. During quality inspection, start the first cylinder to contract so that the clamping frame is pulled by the tension sensor and the connecting rod to translate as a whole inside the detection frame. At this time, the tension sensor changes in tension within the preset tension value range. When the connection between a certain wiring harness and the terminal body is disconnected within the preset tension value, it is judged that the connection between the wiring harness and the terminal body is unqualified, and then the cylinder is depressurized and the unqualified products are picked out, so that the crimping firmness of the wiring harness and the terminal body can be tested.

[0031] The terminal crimping quality inspection device of the utility model can effectively solve the limitations of quality inspection of existing terminal crimping devices and the problem of low efficiency of crimping and quality inspection, and realizes the addition of the function of detecting the firmness of the crimping of the wire harness and the terminal on the basis of the technology of the existing terminal crimping quality inspection device, while improving the efficiency of terminal crimping and quality inspection.

Claims

1. A terminal crimping quality inspection device, comprising: A crimping device (1) and a detection frame (2), characterized in that: a crimping cylinder (11) is provided on the upper side of the crimping device (1), and the lower end of the crimping cylinder (11) is connected to a crimping plate (12), and a pressure platform (13) is provided on the lower side of the crimping plate (12); the detection frame (2) is provided on both sides of the crimping device (1), and a clamping assembly (22) is slidably connected inside the detection frame (2), and a connecting rod (24) is connected to the outer side of the clamping assembly (22), the outer end of the connecting rod (24) is connected to a tension sensor (23), and the outer end of the tension sensor (23) is connected to a first cylinder (21); the clamping assembly (22) includes a clamping frame (221), and a clamping groove (225) is provided inside the clamping frame (221), and a placement groove (226) is provided on the lower side of the clamping groove (225).

2. A terminal crimping quality inspection device according to claim 1, characterized in that: The outer wall of the crimping plate (12) is connected to a telescopic rod (14), the lower end of the telescopic rod (14) is connected to a pre-pressing block (16), and the outer side of the telescopic rod (14) is connected to a horizontal lifting rod (15).

3. A terminal crimping quality inspection device according to claim 1, characterized in that: The upper end surface of the pressure-bearing platform (13) is provided with a plurality of arc-shaped grooves, and a terminal body (3) is provided between the pressure-bearing platform (13) and the pre-pressing block (16).

4. A terminal crimping quality inspection device according to claim 1, characterized in that: The lower end of the clamping frame (221) is connected to a connecting plate (222), and the upper and lower ends of the connecting plate (222) are connected to sliding blocks, and a second cylinder (223) is provided on the upper side of the clamping frame (221) and between the connecting plates (222).

5. A terminal crimping quality inspection device according to claim 1, characterized in that: A clamping block (224) is slidably connected to the inner upper groove wall of the clamping groove (225), and the clamping block (224) is connected to the lower end of the second cylinder (223), and the clamping groove (225) is configured as an N-shaped groove structure opening forward.

6. A terminal crimping quality inspection device according to claim 1, characterized in that: The detection frame (2) is configured as a rectangular frame structure, and a horizontal cross plate is provided in the middle of the rectangular frame, and the sliders at the upper and lower ends of the connecting plate (222) are respectively slidably connected to the upper inner frame wall and the cross plate of the rectangular frame.

7. A terminal crimping quality inspection device according to claim 1, characterized in that: An electric control box is provided on the lower side of the crimping device (1), and an alarm is provided on the upper side of the crimping device (1).

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