Automobile connector terminal plug-in force testing machine

Abstract

The application discloses a kind of automobile connector terminal plug-in force testing machine, it is related to testing device technical field.The application includes: gripping shell, pull sensor is installed in it, the gripping shell is slidably installed with connecting shell, pull rod is installed on the connecting shell and is connected with pull sensor;Clamping piece includes connecting rod, and clamping plate is slidably installed on the connecting rod.The application is connected with connector when testing machine is connected, clamping plate is placed at the two sides of connector, rotating gripping shell at this time, connecting shell is rotated together, in the process, sliding is carried out in spiral groove by protruding block, active lever is pushed, so that the end of active lever drives connecting rod and clamping plate away from mounting shell, clamping plate is pulled by hinged lever, in turn, leading to clamping plate mutually close, connector is clamped, the fixing of connector is completed, only need to rotate and pull gripping shell to complete the fixing and release fixing of connector male head.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and specifically to an automotive connector terminal insertion and extraction force testing machine. Background Technology

[0002] Automotive connectors are components that electronic engineers frequently encounter. Their function is very simple: to bridge gaps in circuits or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function. Before leaving the factory, connectors also need to undergo insertion and extraction force testing using testing equipment.

[0003] Existing publicly available technology, such as CN222689310U, discloses a vertical terminal insertion and extraction force testing machine, including an upper clamping device, a lower clamping device, a tension / compression sensor, a circular rim handwheel, a controller, and a display. The upper clamping device is located above the lower clamping device. The bottom of the guide rod of the circular rim handwheel is connected to the upper clamping device via the tension / compression sensor. When the circular rim handwheel is rotated, the upper and lower clamping devices move closer or further apart. The controller is connected to the tension / compression sensor, and the display is connected to the controller. This vertical terminal insertion and extraction force testing machine has a simple structure. After fixing the terminal to the upper and lower clamping devices, the insertion and extraction force of the terminal can be tested simply by rotating the circular rim handwheel. However, during testing, the terminal needs to be clamped and fixed to the connector using screws or other means before testing. Therefore, the screws need to be rotated repeatedly, making the fixing structure operation complex and reducing testing efficiency.

[0004] Therefore, this invention proposes an automotive connector terminal insertion and extraction force testing machine to solve this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an automotive connector terminal insertion and extraction force testing machine to solve the problems mentioned above in the background art.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution: An automotive connector terminal insertion and extraction force testing machine, comprising: A grip shell with a tension sensor installed inside it, and a connecting shell slidably mounted on the grip shell, with a pull rod connected to the tension sensor mounted on the connecting shell; The clamping component includes a connecting rod, on which two clamping plates are slidably mounted. A mounting shell is rotatably mounted on a connecting shell. A movable rod is movably inserted into the connecting shell. The connecting rod is mounted on the free end of the movable rod. A spiral groove is formed on the movable rod. A protrusion that is slidably connected to the spiral groove is mounted on the connecting shell. A hinged rod is hinged to the clamping plate and is hinged to the mounting shell.

[0007] Furthermore, the connecting rod is rotatably mounted on the movable rod, a connecting block is hinged to the free end of the hinged rod, an extension rod is sequentially hinged to the connecting block, the free end of the extension rod is hinged to the mounting shell, a limiting frame is sleeved on the extension rod, a side plate is mounted on the clamping plate, a through hole is opened on the side plate, a connecting spring is mounted on the mounting shell, and a plug rod for insertion into the through hole is mounted on the free end of the connecting spring.

[0008] Furthermore, a rubber block is installed on the inner wall of the clamping plate, and the clamping plate contacts the connector through the rubber block.

[0009] Furthermore, a cavity is provided on the movable rod, and an abutment rod is slidably installed in the cavity. An abutment spring is installed between the abutment rod and the inner wall of the cavity. When the clamping plate rotates to abut against the abutment rod, the abutment rod abuts against the inner wall of the connecting shell.

[0010] Furthermore, an arc-shaped surface is provided on one end of the abutment rod located outside the cavity, and the abutment rod abuts against the clamping plate through the arc-shaped surface.

[0011] Furthermore, the mounting shell has a sliding groove, the insertion rod has a vertical rod that slides with the sliding groove, the vertical rod has an arc-shaped groove, the sliding groove has a push spring, and the free end of the push spring has an arc-shaped block for insertion into the arc-shaped groove.

[0012] Furthermore, a circular plate is installed at the end of the connecting rod, and a return spring is installed between the circular plate and the clamping plate, the return spring forcing the clamping plates to move away from each other.

[0013] Furthermore, a sleeve is installed on the connecting rod, a spring is installed inside the sleeve, a protruding rod is installed at the free end of the spring, and an abutment block that slides through the sleeve is installed on the sleeve, the abutment block being used to abut against the clamping plate.

[0014] Furthermore, the protruding rod has a first inclined surface at one end inside the sleeve, and the abutting block has a second inclined surface parallel to the first inclined surface at one end inside the sleeve.

[0015] Furthermore, a guide groove is provided inside the grip shell, and a guide block that is slidably connected to the guide groove is installed on the connecting shell.

[0016] The beneficial effects of this invention are as follows: When connecting the test structure to the connector, the present invention places the clamping plates on both sides of the male connector. At this time, rotating the gripping shell causes the connecting shell to rotate as well. During this process, the protrusion slides in the spiral groove, pushing the movable rod. This causes the end of the movable rod to move the connecting rod and the clamping plate away from the mounting shell. The clamping plate is then pulled by the hinge rod, causing the clamping plates to move closer together and clamp the connector, thus fixing the connector. The entire process only requires rotating and pulling the gripping shell to fix and release the male connector, making the device more convenient to use and increasing its practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is another three-dimensional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the connecting shell structure of the present invention; Figure 4 This is a three-dimensional view of part of the structure of the present invention; Figure 5 This is a schematic diagram of the mounting shell structure of the present invention; Figure 6 This is a schematic diagram of the clamping component structure of the present invention; Figure 7 This is a schematic diagram of the structure on the clamping plate of the present invention; Figure 8 This is an exploded view of part of the structure of this invention; Figure 9 This is an exploded view of the structure on the movable rod of the present invention; Figure 10 This is a schematic diagram of the structure on the vertical rod of the present invention; Figure 11 This is the present invention. Figure 4 Three-dimensional sectional view of the structure; Figure 12 This is the present invention. Figure 7 Three-dimensional sectional view of the structure; Reference numerals: 1. Grip shell; 101. Tension sensor; 102. Connecting shell; 103. Pull rod; 2. Clamping component; 201. Connecting rod; 202. Clamping plate; 203. Mounting shell; 204. Movable rod; 205. Hinge rod; 206. Connecting block; 207. Extension rod; 208. Spiral groove; 209. Protrusion; 3. Side plate; 301. Through hole; 302. Connecting spring; 303. Insert rod; 4. Rubber block; 5. Cavity; 6. Abutment rod; 7. Sliding groove; 8. Vertical rod; 9. Arc groove; 10. Push spring; 11. Arc block; 12. Circular plate; 13. Return spring; 14. Sleeve; 15. Removing spring; 16. Protruding rod; 17. Abutment block; 18. Guide groove; 19. Guide block; 20. Abutment spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] like Figure 1 - Figure 12 As shown, in some embodiments of the present invention, an automotive connector terminal insertion and extraction force testing machine includes: The gripping shell 1 contains a tension sensor 101. A connecting shell 102 is slidably mounted on the gripping shell 1. A pull rod 103 connected to the tension sensor 101 is mounted on the connecting shell 102. In use, the female end of the connector is fixed by a tooling fixture. The operator grips the gripping shell 1 and connects the connecting shell 102 to the male end of the connector. The male end is separated from the female end by pulling, thereby detecting the insertion and extraction force. During the process, when the connecting shell 102 is pulled, the force is transmitted to the tension sensor 101 through the pull rod 103, and the tension sensor 101 completes the detection. The clamping component 2 includes a connecting rod 201, on which a clamping plate 202 is slidably mounted. There are two clamping plates 202, and the clamping plates 202 slide in a direction that is close to each other or far from each other. When the clamping plates 202 are close to each other, the clamping plates 202 clamp and connect the male connector. A mounting shell 203 is rotatably mounted on the connecting shell 102. The two are rotatably connected so that when the connecting shell 102 rotates, it will not cause motion interference to the components mounted on the mounting shell 203. A movable rod 204 is movably inserted into the connecting shell 102. The movable rod 204 is also movably connected to the mounting shell 203. The movable rod 204 can rotate within the connecting shell 102 and slide along its axis. A connecting rod 201 is mounted on the free end of the movable rod 204. A spiral groove 208 is opened on the movable rod 204. A protrusion 209 that is slidably connected to the spiral groove 208 is mounted on the connecting shell 102. A hinge rod 205 is hinged to the clamping plate 202. The hinge rod 205 is hinged to the mounting shell 203. When the device is in use, hold the holding shell 1 and hook the clamping plate 202 on one side onto the side wall of the male connector. The clamping plate 202 and the connector are initially connected by contact. At this time, the male and female connectors are connected and can provide initial support for the clamping plate 202. Rotate and pull the holding shell 1, which will drive the connecting shell 102 to rotate together. At this time, the protrusion 209 slides in the spiral groove 208. The protrusion 209 pushes the inner wall of the spiral groove 208 tangentially, causing the movable rod 204 to move away from the mounting shell 203. When the free end of the movable rod 204 moves away from the mounting shell 203, the end of the hinge rod 205 connected to the clamping plate 202 is pulled closer to each other, which in turn causes the clamping plates 202 to move closer to each other, completing the connection between the device and the male connector. Compared with the existing technology, when connecting the testing machine to the connector, the clamping plate 202 is placed on both sides of the connector. At this time, the gripping shell 1 is rotated, which drives the connecting shell 102 to rotate together. During the process, the protrusion 209 slides in the spiral groove 208, pushing the movable rod 204. This causes the end of the movable rod 204 to drive the connecting rod 201 and the clamping plate 202 away from the mounting shell 203. The hinge rod 205 pulls the clamping plate 202, which causes the clamping plates 202 to move closer together, clamping the connector and completing the fixing of the connector. In the whole process, it is only necessary to rotate and pull the gripping shell 1 to complete the fixing and unfixing of the connector male head, making the device more convenient to use and increasing the practicality of the device.

[0020] like Figure 2 , Figure 6 and Figure 7 and Figure 11 As shown, a portion of the structure on the connecting rod 201 is disclosed. In some embodiments, the connecting rod 201 is rotatably mounted on the movable rod 204. A connecting block 206 is hinged to the free end of the hinged rod 205. An extension rod 207 is sequentially hinged to the connecting block 206. The free end of the extension rod 207 is hinged to the mounting shell 203. A limiting frame 21 is fitted on the extension rod 207. When the distance between the two extension rods 207 is... Figure 2 In the neutral state, the limiting frame 21 is fitted around the two extension rods 207, and its inner wall blocks the rotation of the two extension rods 207. There are two extension rods 207, and a plate is hinged to the connecting block 206. One end of one extension rod 207 is hinged to the plate on the connecting block 206, and the free end is hinged to the other extension rod 207. This extension rod 207 is hinged to the mounting shell 203. Since the movable rod 204 is rotatably mounted on the movable rod 204, it can drive the position of the clamping plate 202 on the device to change. When not in use, the length direction of the clamping plate 202 is consistent with the axial direction of the connecting shell 102. This state is the idle state. At this time, the extension rods 207 have a distance between them as shown in the figure. Figure 2As shown in the figure, when the limiting frame 21 is fitted onto it, the rotation of the extension rod 207 is restricted. After rotation, the length direction of the clamping plate 202 is perpendicular to the axis of the connecting shell 102. The extension rod 207 also rotates to accommodate the rotation of the clamping plate 202. At this time, the rotation between the extension rods 207 reaches its maximum value, so that it can still stably pull the clamping plate 202. This state is the pulling state. During the test, in order to ensure that the terminals are not damaged when the connector male is pulled out, the direction of force needs to be horizontal or consistent with the direction of insertion of the male. Since the operator needs to hold the holding shell 1 when using it, and when the device is in the idle state, the position of the clamping plate 202 and the connecting shell 102 is as follows: Figure 2 As shown, the operator's wrist needs to be straight, and when the device is in a pulling motion, the position between the clamping plate 202 and the connecting shell 102 is as follows. Figure 1 As shown, this is the direction in which the wrist normally applies force, making the device more convenient to use. like Figure 2 As shown, when the limiting frame 21 is fitted onto the extension rod 207, the rotation of the extension rod 207 is restricted, thereby keeping the length between the extension rods 207 constant, ensuring that the hinge rod 205 can pull the clamping plate 202, and the limiting frame 21 can be installed on the mounting shell 203 by a sling, reducing the possibility of the limiting frame 21 being lost when it is removed. A side plate 3 is installed on the clamping plate 202. A through hole 301 is opened on the side plate 3. A connecting spring 302 is installed on the mounting shell 203. A rod 303 for insertion into the through hole 301 is installed on the free end of the connecting spring 302. When the clamping plate 202 is rotated to the pulling position, the through hole 301 is aligned with the rod 303, and the connecting spring 302 forces the rod 303 to move towards the clamping plate 202. When the device is in use, the operator holds the housing 1 with their hand and uses their thumb to push the insertion rod 303 away from the clamping plate 202. After the clamping plate 202 has connected the male connector, the operator rotates their wrist to bring the device into a pulling state. When the device is fully in a pulling state, the operator releases their thumb, and the reset of the connecting spring 302 pushes the insertion rod 303 into the through hole 301, thereby limiting the rotation of the connecting rod 201 and the clamping plate 202 and increasing the stability of the device during use.

[0021] like Figure 4As shown, a portion of the structure on the clamping plate 202 is disclosed. In some embodiments, a rubber block 4 is installed on the inner wall of the clamping plate 202. The clamping plate 202 contacts the connector through the rubber block 4. When the clamping plate 202 clamps the connector surface, the rubber block 4 flexibly contacts the connector surface, reducing the possibility of wear on the connector surface when clamping and fixing the connector. Furthermore, the rubber block 4 increases the friction between the clamping plate 202 and the connector surface, thereby increasing the connection strength between the device and the connector and increasing the practicality of the device.

[0022] like Figure 9 As shown, a portion of the structure of the movable rod 204 is disclosed. In some embodiments, a cavity 5 is provided on the movable rod 204, and an abutment rod 6 is slidably installed in the cavity 5. The abutment rod 6 and the movable rod 204 are only slidably connected. A plate is installed on the abutment rod 6, and a groove is provided in the cavity 5 to slide with the plate. For the sake of showing other components, they are not shown in the accompanying drawings. An abutment spring 20 is installed between the abutment rod 6 and the inner wall of the cavity 5. When the clamping plate 202 rotates to abut the abutment rod 6, the abutment rod 6 abuts against the inner wall of the connecting shell 102. The abutment spring 20 forces the end of the abutment rod 6 outside the cavity 5 away from the cavity 5. When the clamping plate 202 is in an idle state... At this time, the abutment rod 6 is parallel to the clamping plate 202, and one end of it located in the cavity 5 is not in contact with the inner wall of the connecting shell 102. When the clamping plate 202 rotates to the pulling position, the clamping plate 202 abuts against the abutment rod 6, causing the other end of the abutment rod 6 to abut against the inner wall of the connecting shell 102, thus blocking the movable rod 204 against the inner wall of the connecting shell 102. Since the abutment rod 6 can only slide within the movable rod 204, when the movable rod 204 is to rotate back to its original position, both ends of the abutment rod 6 are abutted, causing the abutment spring 20 to be fully compressed. The abutment spring 20 applies abutment force to the movable rod 204, thus causing the protrusion 209 to abut against the inner wall of the spiral groove 208. Figure 11 As shown, the tendency of the movable rod 204 to reset is limited, which further increases the stability of the device during use.

[0023] like Figure 9 As shown, a portion of the structure of the abutment rod 6 is disclosed. In some embodiments, an arc-shaped surface is provided on one end of the abutment rod 6 located outside the cavity 5. The abutment rod 6 abuts against the clamping plate 202 through the arc-shaped surface. When the clamping plate 202 abuts against the abutment rod 6, it is guided by the arc-shaped surface on its outside, so that the clamping plate 202 can abut against the abutment rod 6 more smoothly, which makes it easier for the abutment rod 6 to abut against the inner wall of the connecting shell 102, increasing the feasibility of the device.

[0024] like Figure 5 and Figure 10As shown, a portion of the structure on the mounting housing 203 is disclosed. In some embodiments, the mounting housing 203 has a sliding groove 7, and the insertion rod 303 is equipped with a vertical rod 8 that slides in conjunction with the sliding groove 7. The two vertical rods 8 are connected by a plate. In use, by moving the plate, the insertion rods 303 on both sides can slide simultaneously. The vertical rod 8 has an arc-shaped groove 9, and a push spring 10 is installed in the sliding groove 7. The free end of the push spring 10 is equipped with an arc-shaped groove for insertion into the arc-shaped groove 9. When the connecting spring 302 pushes the insertion rod 303 into the through hole 301, the vertical rod 8 also gradually moves towards the arc-shaped block 11. During this process, the side wall of the vertical rod 8 abuts against the arc-shaped block 11, forcing the push spring 10 to be compressed. When the insertion rod 303 is inserted into the through hole 301, the arc-shaped groove 9 is also aligned with the arc-shaped block 11. At this time, the push spring 10 pushes the arc-shaped block 11 into the arc-shaped groove 9, restricting the sliding of the vertical rod 8 and the insertion rod 303, and increasing the stability of the insertion rod 303 during use.

[0025] like Figure 6 and Figure 7 As shown, a portion of the structure on the connecting rod 201 is disclosed. In some embodiments, a circular plate 12 is installed at the end of the connecting rod 201, and a return spring 13 is installed between the circular plate 12 and the clamping plate 202. The return spring 13 forces the clamping plates 202 away from each other. The diameter of the circular plate 12 is larger than the diameter of the return spring 13, so that the return spring 13 will not separate from the connecting rod 201. In use, after the device has finished testing a connector, the plug rod 303 and the through hole 301 are pulled out. When the device is rotated to the pulling position, the abutment spring 20 pushes the abutment rod 6 away from the inner wall of the connecting shell 102. Then, the holding shell 1 is reversed, so that the movable rod 204 is reset. After reset, the clamping plates 202 are moved away from each other by the pushing of the hinge rod 205 and the pushing of the return spring 13. When the clamping plates 202 come close together to clamp the connector, the return spring 13 is in a compressed state. The return spring 13 tends to push the clamping plates 202 away from each other, while the clamping plates 202 are restricted by the hinge rod 205, thereby compensating for the gap between the clamping plates 202 and the hinge rod 205, and increasing the stability of the device in clamping.

[0026] like Figure 7 and Figure 12As shown, a portion of the structure of the connecting rod 201 is disclosed. In some embodiments, a sleeve 14 is mounted on the connecting rod 201, and a spring 15 is mounted inside the sleeve 14. A protruding rod 16 is mounted on the free end of the spring 15, which forces the protruding rod 16 to move into the sleeve 14. An abutment block 17 is mounted on the sleeve 14, slidingly penetrating the sleeve 14. A channel is formed in the sleeve 14, allowing the interior of the sleeve 14 to communicate with the exterior. The abutment block 17 is slidably mounted within the channel. Used to abut against the clamping plate 202, when the clamping plates 202 approach each other, the clamping plates 202 abut against the abutting block 17, causing the abutting block 17 to slide towards the inner wall of the sleeve 14, and then abut against the protruding rod 16 through the abutting block 17, forcing the protruding rod 16 to move outward of the sleeve 14, so that the protruding rod 16 can also abut against the connector. By increasing the contact points between the device and the connector, the connection strength between the device and the connector is increased, and the practicality of the device is increased.

[0027] like Figure 7 and Figure 12 As shown, a portion of the structure on the protruding rod 16 is disclosed. In some embodiments, a first inclined surface is provided on one end of the protruding rod 16 located inside the sleeve 14, and a second inclined surface parallel to the first inclined surface is provided on one end of the abutment block 17 located inside the sleeve 14. When the abutment block 17 is abutted by the clamping plate 202, the second inclined surface on it abuts against the first inclined surface on the protruding rod 16. Through the guidance of the second inclined surface and the first inclined surface, the protruding rod 16 can move more smoothly to the outside of the sleeve 14, increasing the feasibility of the device.

[0028] like Figure 3 and Figure 8 As shown, a portion of the structure on the grip shell 1 is disclosed. In some embodiments, a guide groove 18 is provided inside the grip shell 1, and a guide block 19 that is slidably connected to the guide groove 18 is installed on the connecting shell 102. When the connecting shell 102 slides on the grip shell 1, the inner wall of the guide groove 18 restricts the side wall of the guide block 19, so that the connecting shell 102 can only slide along a straight line on the grip shell 1, which increases the stability of the connecting shell 102 when sliding, and restricts the rotation of the connecting shell 102 on the grip shell 1, reducing the possibility that the pull rod 103 will damage the tension sensor 101 due to the accidental rotation of the connecting shell 102, and increasing the practicality of the device.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tester for the insertion and extraction force of automotive connector terminals, characterized in that, include: A grip shell (1) is provided with a tension sensor (101) installed inside. A connecting shell (102) is slidably mounted on the grip shell (1). A pull rod (103) connected to the tension sensor (101) is mounted on the connecting shell (102). The clamping component (2) includes a connecting rod (201), on which clamping plates (202) are slidably mounted. There are two clamping plates (202). A mounting shell (203) is rotatably mounted on the connecting shell (102). A movable rod (204) is movably inserted into the connecting shell (102). The connecting rod (201) is mounted on the free end of the movable rod (204). A spiral groove (208) is formed on the movable rod (204). The connecting shell (102) The mounting plate (202) is equipped with a protrusion (209) that is slidably connected to the spiral groove (208). A hinge rod (205) is hinged to the clamping plate (202). The hinge rod (205) is hinged to the mounting shell (203). The connecting rod (201) is rotatably mounted on the movable rod (204). A connecting block (206) is hinged to the free end of the hinge rod (205). An extension rod (207) is sequentially hinged to the connecting block (206). The free end of the extension rod (207) is connected to the mounting shell (203). The shell (203) is hinged, and a limiting frame (21) is fitted on the extension rod (207). A side plate (3) is installed on the clamping plate (202), and a through hole (301) is opened on the side plate (3). A connecting spring (302) is installed on the mounting shell (203), and a plug (303) for insertion into the through hole (301) is installed on the free end of the connecting spring (302). A cavity (5) is opened on the movable rod (204). An abutment rod (6) is slidably installed inside the cavity (5). An abutment spring (20) is installed between the abutment rod (6) and the inner wall of the cavity (5). When the clamping plate (202) rotates to abut against the abutment rod (6), the abutment rod (6) abuts against the inner wall of the connecting shell (102). A circular plate (12) is installed at the end of the connecting rod (201). A return spring (13) is installed between the circular plate (12) and the clamping plate (202). The return spring (13) forces the clamping plates (202) to move away from each other.

2. The automotive connector terminal insertion and extraction force testing machine according to claim 1, characterized in that, A rubber block (4) is installed on the inner wall of the clamping plate (202), and the clamping plate (202) contacts the connector through the rubber block (4).

3. The automotive connector terminal insertion and extraction force testing machine according to claim 2, characterized in that, The abutment rod (6) has an arc-shaped surface on one end outside the cavity (5), and the abutment rod (6) abuts against the clamping plate (202) through the arc-shaped surface.

4. The automotive connector terminal insertion and extraction force testing machine according to claim 3, characterized in that, The mounting shell (203) has a sliding groove (7), and the insert rod (303) has a vertical rod (8) that slides in cooperation with the sliding groove (7). The vertical rod (8) has an arc groove (9), and a push spring (10) is installed in the sliding groove (7). An arc block (11) for inserting into the arc groove (9) is installed on the free end of the push spring (10).

5. The automotive connector terminal insertion and extraction force testing machine according to claim 4, characterized in that, A sleeve (14) is installed on the connecting rod (201), a remote spring (15) is installed inside the sleeve (14), a protruding rod (16) is installed at the free end of the remote spring (15), and a sliding contact block (17) is installed on the sleeve (14) to abut against the clamping plate (202).

6. The automotive connector terminal insertion and extraction force testing machine according to claim 5, characterized in that, The protruding rod (16) has a first inclined surface at one end inside the sleeve (14), and the abutting block (17) has a second inclined surface at one end inside the sleeve (14) that is parallel to the first inclined surface.

7. The automotive connector terminal insertion and extraction force testing machine according to claim 6, characterized in that, The grip shell (1) has a guide groove (18) inside, and the connecting shell (102) is equipped with a guide block (19) that is slidably connected to the guide groove (18).

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