Automobile cable joint tension detection device

Abstract

The application discloses a kind of automobile cable joint tension detection devices, it is related to automobile cable detection technical field, including bottom plate, connector compression mechanism and compression assembly are equipped on bottom plate, the two sides of compression assembly are equipped with side seat, side seat is fixedly connected with bottom plate, traction mechanism is equipped in side seat;The connector compression mechanism includes fixedly arranged in the top of bottom plate fixed seat, the top of fixed seat is fixedly connected with first fixed frame, the bottom of first fixed frame is fixedly connected with first hydraulic rod, the telescopic end of first hydraulic rod is fixedly connected with first pressing plate;The both ends of automobile cable joint can be fixedly compressed by being provided with connector compression mechanism and compression assembly, the automobile cable can be pulled by being provided with traction mechanism, and the limit tension of automobile cable joint can be detected, at the same time, the deformation length of automobile cable in the process of stretching can also be synchronously detected, detection has the characteristics of diversification, and simple and convenient operation.

Description

Technical Field

[0001] This invention relates to the field of automotive cable testing technology, specifically to an automotive cable connector tensile strength testing device. Background Technology

[0002] Automotive cables, also known as automotive wiring harnesses, are the main network component of a vehicle's electrical system. Without automotive cables, there would be no automotive electrical system. Automotive cables refer to components made of copper wire harness terminals that are crimped to cables, then externally insulated or encased in a metal shell, and bundled together to form a circuit connection.

[0003] Currently, during the use of automotive wiring harness terminal connections, faults such as loosening, breakage, detachment, or poor contact at the crimping points frequently occur. These not only affect the normal operation of automotive electrical systems, leading to an increased vehicle failure rate, but also make troubleshooting and root cause analysis difficult, causing losses to wiring harness assembly manufacturers and users. Therefore, to improve the factory quality of automotive cable products, it is necessary to conduct tensile performance testing on automotive wiring harness terminals. Existing testing equipment, however, provides limited data during tensile testing of wiring harness terminals, only detecting the ultimate tensile force value and failing to measure the deformation generated when the wiring harness terminal is pulled, thus exhibiting certain limitations. Summary of the Invention

[0004] This invention provides a tensile testing device for automotive cable connectors, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A tensile testing device for automotive cable connectors includes a base plate, on which a connector clamping mechanism and a clamping assembly are provided. Side seats are provided on both sides of the clamping assembly, and the side seats are fixedly connected to the base plate. A traction mechanism is provided inside the side seats.

[0007] The connector clamping mechanism includes a fixed seat fixedly installed on the top of the base plate, a first fixed frame fixedly connected to the top of the fixed seat, a first hydraulic rod fixedly connected to the bottom of the first fixed frame, and a first pressure plate fixedly connected to the telescopic end of the first hydraulic rod.

[0008] A fixed roller is provided between two side seats, and a cable is wound on the fixed roller. A connector is fixedly connected to the end of the cable away from the fixed roller. The connector is located between the first pressure plate and the fixed seat. Both ends of the fixed roller are fixedly connected to end seats. The pressing assembly includes a second fixed frame fixedly disposed between the two end seats. A third fixed frame is fixedly connected to the side of the second fixed frame away from the fixed roller. A second hydraulic rod is fixedly connected to the third fixed frame. The telescopic end of the second hydraulic rod is fixedly connected to a first connecting seat. A first sliding groove is opened in the second fixed frame. Two second connecting seats are slidably connected in the first sliding groove. A connecting rod is rotatably connected between the first connecting seat and the two second connecting seats. A moving rod is fixedly connected to the second connecting seat. The end of the moving rod near the fixed roller is fixedly connected to the second pressure plate.

[0009] The traction mechanism includes a third hydraulic rod fixedly installed in the side seat. The telescopic end of the third hydraulic rod is fixedly connected to the pulling sleeve. The fixed roller is coaxially fixedly connected to the pulling shaft. The pulling shaft extends into the side seat and is fixedly connected to the traction end block. The traction end block passes through the pulling sleeve. A pressure sensor is provided on the inner side wall of the pulling sleeve. A marking pen is provided on the top of the traction end block. A marking plate corresponding to the marking pen is provided on the top of the side seat.

[0010] As a preferred embodiment of the present invention, a sliding guide rail is fixedly provided on the inner wall of the first sliding groove, the sliding guide rail is inclinedly arranged in the first sliding groove, and the second connecting seat is slidably connected to the sliding guide rail.

[0011] As a preferred embodiment of the present invention, the second fixed frame is provided with a second sliding groove corresponding to the moving rod.

[0012] As a preferred embodiment of the present invention, the fixed roller is provided with a pressure groove on its outer side.

[0013] As a preferred embodiment of the present invention, an inner groove is provided in the traction end block, a marking pen passes through the top of the traction end block and is fixedly connected to a lifting block, the lifting block is slidably connected to the inner groove, a pressing plate is provided at the end of the traction end block away from the third hydraulic rod, the pressing plate extends to the inner groove and is slidably connected to the traction end block, a sliding block is fixedly connected to the bottom end of the pressing plate located in the inner groove, and a return spring is fixedly connected between the sliding block and the end in the inner groove.

[0014] As a preferred embodiment of the present invention, a fixed rail is fixedly connected inside the inner groove, the pressing plate is slidably connected to the fixed rail, and the bottom end of the lifting block is inclined.

[0015] As a preferred embodiment of the present invention, the marking board is a commercially available magnetic erasable drawing board, the marking board is provided with scale lines, and the top of the marking pen is provided with a magnetic pen tip.

[0016] As a preferred embodiment of the present invention, the adjacent sides of the two side seats are provided with side grooves corresponding to the pull shaft.

[0017] As a preferred embodiment of the present invention, the top of the fixed base and the bottom of the first pressure plate are both provided with friction surfaces.

[0018] As a preferred embodiment of the present invention, a guide rail is fixedly provided inside the side seat, and the traction end block is slidably connected to the guide rail.

[0019] The present invention has the following advantages: by setting a connector clamping mechanism and clamping assembly, the present invention can clamp and fix both ends of the automotive cable connector. By setting a traction mechanism, the automotive cable can be pulled and the ultimate tensile force of the automotive cable connector can be detected. At the same time, the deformation length of the automotive cable during the stretching process can also be detected simultaneously. The detection has diverse features and is simple and convenient to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a tensile testing device for automotive cable connectors.

[0021] Figure 2 This is a three-dimensional structural diagram of the clamping component in an automotive cable connector tensile testing device.

[0022] Figure 3 This is a three-dimensional sectional view of the clamping component in an automotive cable connector tensile testing device.

[0023] Figure 4 This is a schematic diagram of the traction mechanism in an automotive cable connector tensile testing device.

[0024] Figure 5 This is a schematic diagram of the internal structure of the traction end block in an automotive cable connector tensile testing device.

[0025] In the diagram: 1. Base plate; 2. Side seat; 3. Fixed seat; 4. First fixed frame; 5. First hydraulic rod; 6. First pressure plate; 7. Fixed roller; 8. End seat; 9. Pressing assembly; 10. Cable rope; 11. Side groove; 12. Marking plate; 13. Second fixed frame; 14. Third fixed frame; 15. Second hydraulic rod; 16. First connecting seat; 17. Connecting rod; 18. Second connecting seat; 19. Pull shaft; 20. Pressing groove; 21. First sliding groove; 22. Sliding guide rail; 23. Moving rod; 24. Second pressure plate; 25. Second sliding groove; 26. Third hydraulic rod; 27. Pull sleeve; 28. Traction end block; 29. ​​Pressing plate; 30. Marking pen; 31. Inner groove; 32. Lifting block; 33. Fixed rail; 34. Sliding block; 35. Return spring. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0028] Please see Figure 1-5 A tensile testing device for automotive cable connectors includes a base plate 1, on which a connector clamping mechanism and a clamping assembly 9 are provided. Side seats 2 are provided on both sides of the clamping assembly 9. The side seats 2 are fixedly connected to the base plate 1, and a traction mechanism is provided inside the side seats 2.

[0029] The connector clamping mechanism includes a fixed base 3 fixedly installed on the top of the base plate 1, a first fixed frame 4 fixedly connected to the top of the fixed base 3, a first hydraulic rod 5 fixedly connected to the bottom of the first fixed frame 4, and a first pressure plate 6 fixedly connected to the telescopic end of the first hydraulic rod 5.

[0030] A fixed roller 7 is provided between the two side seats 2. A cable rope 10 is wound on the fixed roller 7. A connector is fixedly connected to the end of the cable rope 10 away from the fixed roller 7. The connector is located between the first pressure plate 6 and the fixed seat 3. Both ends of the fixed roller 7 are fixedly connected to end seats 8. The pressing assembly 9 includes a second fixed frame 13 fixedly disposed between the two end seats 8. A third fixed frame 14 is fixedly connected to the side of the second fixed frame 13 away from the fixed roller 7. A second hydraulic rod 15 is fixedly connected to the third fixed frame 14. The telescopic end of the second hydraulic rod 15 is fixedly connected to the first connecting seat 16. A first sliding groove 21 is opened in the second fixed frame 13. Two second connecting seats 18 are slidably connected in the first sliding groove 21. A connecting rod 17 is rotatably connected between the first connecting seat 16 and the two second connecting seats 18. A moving rod 23 is fixedly connected to the second connecting seat 18. A second pressure plate 24 is fixedly connected to the end of the moving rod 23 near the fixed roller 7.

[0031] The traction mechanism includes a third hydraulic rod 26 fixedly installed in the side seat 2. The telescopic end of the third hydraulic rod 26 is fixedly connected to the pulling sleeve 27. The fixed roller 7 is coaxially fixedly connected to the pulling shaft 19. The pulling shaft 19 extends into the side seat 2 and is fixedly connected to the traction end block 28. The traction end block 28 passes through the pulling sleeve 27. A pressure sensor is provided on the inner side wall of the pulling sleeve 27. A marking pen 30 is provided on the top of the traction end block 28. A marking plate 12 corresponding to the marking pen 30 is provided on the top of the side seat 2.

[0032] The inner wall of the first sliding groove 21 is fixedly provided with a sliding guide rail 22, which is inclinedly arranged in the first sliding groove 21, and the second connecting seat 18 is slidably connected to the sliding guide rail 22.

[0033] The second fixed frame 13 is provided with a second sliding groove 25 corresponding to the moving rod 23.

[0034] The fixed roller 7 has a pressure groove 20 on its outside.

[0035] The traction end block 28 has an inner groove 31. The marking pen 30 passes through the top of the traction end block 28 and is fixedly connected to the lifting block 32. The lifting block 32 is slidably connected to the inner groove 31. The end of the traction end block 28 away from the third hydraulic rod 26 is provided with a pressing plate 29. The pressing plate 29 extends to the inner groove 31 and is slidably connected to the traction end block 28. The bottom end of the pressing plate 29 located in the inner groove 31 is fixedly connected to a sliding block 34. A return spring 35 is fixedly connected between the sliding block 34 and the end in the inner groove 31.

[0036] The inner groove 31 is fixedly connected to the fixed rail 33, the pressing plate 29 is slidably connected to the fixed rail 33, and the bottom end of the lifting block 32 is inclined.

[0037] The marking board 12 is a commercially available magnetic erasable drawing board with scale lines on it, and the top of the marking pen 30 is equipped with a magnetic pen tip.

[0038] Both side seats 2 have side grooves 11 on adjacent sides that correspond to the pull shaft 19.

[0039] The top of the fixed base 3 and the bottom of the first pressure plate 6 are both provided with friction surfaces.

[0040] The side seat 2 is fixedly provided with a guide rail, and the traction end block 28 is slidably connected to the guide rail.

[0041] In the implementation of this invention, one end of the cable connector is placed below the first pressure plate 6. The first hydraulic rod 5 is extended to move the first pressure plate 6 downward, pressing the cable connector firmly with the first pressure plate 6. Then, the other end of the cable is placed in the pressure groove 20 outside the fixed roller 7. The second hydraulic rod 15 is then extended, moving the first connecting seat 16. The first connecting seat 16, through the connecting rod 17, pushes the two second connecting seats 18 to move along the sliding guide rail 22 until the two pressing plates 29 firmly press the cable against the fixed rail 3. 3. The cable ends are fixed in place. Then, the third hydraulic rod 26 is retracted, causing the pulling sleeve 27 to move. The pulling sleeve 27 first presses the pressure plate 29 into the traction end block 28, and then continues to pull the traction end block 28. When the pressure plate 29 is pressed into the traction end block 28, it pushes the lifting block 32, causing the marking pen 30 to move upward and contact the marking plate 12. During the traction process, the pressure sensor can detect the traction force in real time, and the lines drawn by the marking pen 30 on the marking plate 12 can simultaneously show the length of the cable deformation. Furthermore, when pulling a single cable, the ultimate tensile force of its joint can be detected. If multiple cables are pulled and tested simultaneously, the tensile strength between different cables can be detected, offering a variety of detection effects to choose from.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tensile testing device for automotive cable connectors, comprising a base plate (1), characterized in that, The base plate (1) is provided with a connector clamping mechanism and a clamping assembly (9). Both sides of the clamping assembly (9) are provided with side seats (2). The side seats (2) are fixedly connected to the base plate (1). The side seats (2) are provided with a traction mechanism. The connector clamping mechanism includes a fixed seat (3) fixedly installed at the top of the base plate (1), a first fixed frame (4) fixedly connected to the top of the fixed seat (3), a first hydraulic rod (5) fixedly connected to the bottom of the first fixed frame (4), and a first pressure plate (6) fixedly connected to the telescopic end of the first hydraulic rod (5). A fixed roller (7) is provided between the two side seats (2). A cable rope (10) is wound on the fixed roller (7). A connector is fixedly connected to the end of the cable rope (10) away from the fixed roller (7). The connector is located between the first pressure plate (6) and the fixed seat (3). Both ends of the fixed roller (7) are fixedly connected to end seats (8). The pressing assembly (9) includes a second fixing frame (13) fixedly disposed between the two end seats (8). A third fixing frame (14) is fixedly connected to the side of the second fixing frame (13) away from the fixed roller (7). The third fixing frame (14) is fixed with... A second hydraulic rod (15) is fixedly connected to the second hydraulic rod (15). The telescopic end of the second hydraulic rod (15) is fixedly connected to the first connecting seat (16). A first sliding groove (21) is opened in the second fixed frame (13). Two second connecting seats (18) are slidably connected in the first sliding groove (21). A connecting rod (17) is rotatably connected between the first connecting seat (16) and the two second connecting seats (18). A moving rod (23) is fixedly connected on the second connecting seat (18). The end of the moving rod (23) near the fixed roller (7) is fixedly connected to the second pressure plate (24) to realize the fixation of both ends of the cable rope (10). The traction mechanism includes a third hydraulic rod (26) fixedly installed in the side seat (2). The telescopic end of the third hydraulic rod (26) is fixedly connected to the pull sleeve (27). The fixed roller (7) is coaxially fixedly connected to the pull shaft (19). The pull shaft (19) extends into the side seat (2) and is fixedly connected to the traction end block (28). The traction end block (28) passes through the pull sleeve (27). The inner side wall of the pull sleeve (27) is provided with a pressure sensor. The top of the traction end block (28) is provided with a marking pen (30). The top of the side seat (2) is provided with a marking plate (12) corresponding to the marking pen (30). The traction end block (28) has an inner groove (31) inside. A marking pen (30) passes through the top of the traction end block (28) and is fixedly connected to a lifting block (32). The lifting block (32) is slidably connected to the inner groove (31). A pressing plate (29) is provided at one end of the traction end block (28) away from the third hydraulic rod (26). The pressing plate (29) extends to the inner groove (31) and is slidably connected to the traction end block (28). A sliding block (34) is fixedly connected to the bottom end of the pressing plate (29) located in the inner groove (31). A return spring (35) is fixedly connected between the sliding block (34) and the end in the inner groove (31). The inner groove (31) is fixedly connected to the fixed rail (33), the pressing plate (29) is slidably connected to the fixed rail (33), and the bottom end of the lifting block (32) is inclined. Then control the third hydraulic rod (26) to retract. The third hydraulic rod (26) drives the pulling sleeve (27) to move. The pulling sleeve (27) first presses the pressing plate (29) into the traction end block (28), and then continues to pull the traction end block (28). When the pressing plate (29) is pressed into the traction end block (28), it will push the lifting block (32), thereby causing the marking pen (30) to move up and contact the marking plate (12). During the traction process, the pressure sensor can detect the traction force in real time. The lines drawn by the marking pen (30) on the marking plate (12) synchronously show the length of the cable rope (10) deformation.

2. The automotive cable connector tensile testing device according to claim 1, characterized in that, The inner wall of the first sliding groove (21) is fixedly provided with a sliding guide rail (22), which is inclinedly arranged in the first sliding groove (21), and the second connecting seat (18) is slidably connected to the sliding guide rail (22).

3. The automotive cable connector tensile testing device according to claim 1, characterized in that, The second fixed frame (13) is provided with a second sliding groove (25) corresponding to the moving rod (23).

4. The automotive cable connector tensile testing device according to claim 1, characterized in that, The fixed roller (7) has a pressure groove (20) on its outside.

5. The automotive cable connector tensile testing device according to claim 1, characterized in that, The marking board (12) is a commercially available magnetic erasable drawing board. The marking board (12) has scale lines, and the top of the marking pen (30) has a magnetic pen tip.

6. The automotive cable connector tensile testing device according to claim 1, characterized in that, The two side seats (2) are provided with side grooves (11) corresponding to the pull shaft (19) on adjacent sides.

7. The automotive cable connector tensile testing device according to claim 1, characterized in that, The top of the fixed seat (3) and the bottom of the first pressure plate (6) are both provided with friction surfaces.

8. The automotive cable connector tensile testing device according to claim 1, characterized in that, The side seat (2) is fixedly provided with a guide rail, and the traction end block (28) is slidably connected to the guide rail.

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