Automobile wire harness tensile torsion testing device and testing method thereof

Abstract

The invention relates to the field of automobile wire harnesses, and mainly discloses an automobile wire harness tensile torsion testing device and a testing method.The automobile wire harness tensile torsion testing device comprises a table plate, supporting legs and a bottom plate, an adjusting mechanism and an adjusting motor are installed at the top of the bottom plate, a testing mechanism is installed at the top of the adjusting mechanism, and strip-shaped holes are symmetrically formed in the table plate along the center; a wire containing disc is further installed in the middle of the top of the table board, the strip-shaped holes are distributed in the two sides of the wire containing disc, the strip-shaped holes in each side are arranged in a scattering mode, and the two ends of the top of the testing mechanism correspond to the strip-shaped holes in a one-to-one mode. The testing mechanism designed by the invention is matched with a strip-shaped hole formed in the table plate for use, and a torsion mechanism and a locking mechanism which are arranged on the testing mechanism in a sliding manner can be adjusted to change the distance between the torsion mechanism and the locking mechanism; and the distance between the torsion mechanism and the locking mechanism can be adjusted, and meanwhile, the distance between different testing mechanisms can be changed, so that the mutual influence of the wire harnesses between the different testing mechanisms is avoided.

Description

Technical Field

[0001] The invention relates to the field of automobile wiring harnesses, and in particular to an automobile wiring harness tensile torsion testing device and a testing method thereof. Background Art

[0002] The automotive wiring harness is the main network of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the components that are bundled with the wiring harness to form a circuit connection after the contact terminal (connector) made of copper material is crimped with the wires and cables, and then the insulator is plastic-pressed or metal shell is added.

[0003] After production and processing, automotive wiring harnesses will be spot-checked to detect the qualified rate of the wiring harnesses. Generally, the spot check not only tests the signal conductivity performance of the wiring harness, but also tests its external strength. General tests include but are not limited to stretching and torsion. The purpose of this is to ensure the integrity of the wiring harness under external stretching and torsion.

[0004] Traditional wire harness stretching and torsion tests are often performed separately. Even if some equipment can adjust the distance while torsion, it is only limited to the test of a single wire harness. Therefore, in actual operation, multiple machines will be used when testing a single type of wire harness, or the test will be queued up, which is relatively time-consuming and labor-intensive.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] The object of the present invention is to provide a vehicle wiring harness tensile torsion testing device and a testing method thereof to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A tensile torsion test device for automobile wiring harnesses, comprising a table top, legs fixedly mounted at the four corners of the bottom of the table top, a bottom plate directly below the table top, an adjustment mechanism mounted on the top of the bottom plate, an adjustment motor for driving the adjustment mechanism mounted on the bottom plate, a test mechanism mounted on the top of the adjustment mechanism, strip holes symmetrically opened along the center of the table top, a wire tray mounted on the middle of the top of the table top, the strip holes distributed on both sides of the wire tray, and the strip holes on each side are scattered, the two ends of the top of the test mechanism are respectively arranged in one-to-one correspondence with the strip holes, and the two ends of the top of the test mechanism are respectively arranged through the respective opposite strip holes;

[0009] The adjusting mechanism includes a fixing seat fixedly installed at the top center of the bottom plate, a cross plate fixedly installed at the top end of the fixing seat, end plates fixedly installed at the top of both ends of the cross plate, an adjusting roller rotatably installed between the two end plates, grooves are symmetrically opened along the center on the outer wall of the adjusting roller, and the grooves are spirally opened on the adjusting roller. The testing mechanism is provided with multiple groups, the number of the testing mechanisms is equal to the number of the grooves and corresponds one to one, the bottom center of the testing mechanism is slidably arranged in the corresponding groove, the top end of the end plate is also fixedly installed, and a first slide rail arranged along its length direction is symmetrically installed along the center on the top plate, and sliding holes are also symmetrically opened along the center on the top plate, and the bottom of the testing mechanism is slidably arranged on the first slide rail.

[0010] Furthermore, an adjusting shaft is fixedly installed at one end of the adjusting roller, the adjusting shaft passes through an end plate on one side and is fixedly installed with a driven pulley, a driving pulley is fixedly installed at the output shaft end of the adjusting motor, and the driven pulley is connected to the driving pulley via a transmission belt.

[0011] Furthermore, the testing mechanism includes an inverted U-shaped frame, the bottom end of the U-shaped frame is penetrated by a sliding hole, a first slider is fixedly installed on the outer walls of both sides of the U-shaped frame, the first slider is slidably arranged on a first slide rail, a connecting plate is fixedly installed on the bottom end of the U-shaped frame, a guide column is installed at the bottom center of the connecting plate, the guide column is slidably arranged in a groove, a support frame is fixedly installed at the top center of the U-shaped frame, a strip plate is fixedly installed at the top end of the support frame, a guide rail arranged along its length direction is symmetrically installed along the center of the top of the strip plate, guide seats are slidably installed on the two guide rails, and a torsion mechanism and a locking mechanism are respectively installed on the two guide seats.

[0012] Furthermore, a reinforcing rod is installed through the top of the support frame, and both ends of the reinforcing rod are fixedly installed on the bottom of the strip plate. The top of the guide seat is fixedly installed with a fixing plate, and the top end of the fixing plate is fixedly installed with a vertical rod, and the top of the vertical rod passes through a strip hole. A guide roller is rotatably installed on the outside of the vertical rod, and the guide roller is rollingly arranged in the strip hole. The top end of the vertical rod is fixedly installed with a support plate, and the torsion mechanism and the locking mechanism are respectively installed on the corresponding support plates.

[0013] Furthermore, the torsion mechanism includes a first mounting seat fixedly mounted on the top of a side support plate, a transmission box is fixedly mounted on the top of the first mounting seat, a torsion motor is mounted on the bottom of one end of the transmission box away from the locking mechanism, the torsion motor is mounted on the first mounting seat, the output shaft of the torsion motor is connected to the input shaft of the transmission box, and a wire clamp is fixedly mounted on the end of the output shaft of the transmission box.

[0014] Furthermore, the wire clamp includes an outer frame, a mounting sleeve is fixedly installed in the middle of one end of the outer frame, the mounting sleeve is fixedly installed on the output shaft end of the transmission box, a fixing block is fixedly installed on the end of the outer frame away from the mounting sleeve, a wire clamping groove is provided at the top of the fixing block away from the outer frame, a threaded hole is also provided on the fixing block that is opposite to the mounting sleeve, the threaded hole is connected to the wire clamping groove, a threaded rod is threadedly installed in the threaded hole, a plug hole is also provided in the center of the threaded rod, and a plug rod is inserted into the plug hole, so that One end of the insertion rod is inserted into the assembly sleeve, and the other end of the insertion rod is fixedly installed with a push-pull plate, and the push-pull plate is arranged in the wire clamping groove. Two wire clamping blocks are symmetrically installed in the wire clamping groove, and the wire clamping groove is gradually narrowed and inclined from the bottom to the opening. The side walls of the two wire clamping blocks that are away from each other are abutted against the side walls of the wire clamping groove. The opposite end surfaces of the two wire clamping blocks are provided with notch grooves, and the side wall of the notch groove close to the threaded hole is provided with an arc groove. The end of the push-pull plate away from the insertion rod is fixedly installed with a clamping plate, and the clamping plate is clamped in the notch groove.

[0015] Furthermore, a turning handle is fixedly installed on the outside of one end of the threaded rod close to the assembly sleeve, and a turning handle is fixedly installed on the outside of the turning handle. Anti-slip grooves are provided on the opposite sides of the two wire clamping blocks, and a limiting hole is provided at the bottom of the wire clamping groove. The limiting hole is arranged along the length direction of the side wall of the wire clamping groove. A sliding rod is fixedly installed on one end surface of the wire clamping block facing the limiting hole, and the sliding rod is slidably arranged in the limiting hole. Locking grooves are also provided on the fixed block at both sides of the wire clamping groove, and a locking block is fixedly installed in the locking groove, and one end of the locking block protrudes from the locking groove.

[0016] The locking plate is secured on a central axis and has a first end portion which is fixedly secured to the locking plate, the second end portion of the second end portion being secured to a position adjacent to the locking plate and the second end portion of the second end portion being secured to the locking plate.

[0017] Furthermore, an extension block is fixedly installed on the vertical plate, a guide sleeve is installed through the extension block, the pressure rod is installed through the guide sleeve, a pressure groove is provided on the top of the base, and the pressure groove is arranged opposite to the pressure block. An assembly shaft is also fixedly installed on the vertical plate, and the assembly shaft is arranged between two second slide rails. An eccentric wheel is rotatably installed on the outside of the assembly shaft, and an arc-shaped hole arranged around the assembly shaft is provided on the eccentric wheel. A limiting shaft is also fixedly installed on the vertical plate, and the limiting shaft is slidably arranged in the arc-shaped hole. A handle is also fixedly installed on the outer wall of the eccentric wheel.

[0018] A testing method according to the above-mentioned automobile wiring harness tensile torsion testing device comprises the following steps:

[0019] S1. Adjust the distance between the torsion mechanism and the locking mechanism according to the length of the wiring harness to be tested;

[0020] S2. Fix one end of the wire harness between the pressing block and the pressing groove, and fix the other end of the wire harness by a wire clamp;

[0021] S3, starting the adjusting motor, and performing a tensile test on the wire harness by rotating the adjusting roller;

[0022] S4, starting the torsion motor, and performing a torsion test on the wire harness while the wire harness is stretched in step S3.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The test mechanism designed in the present invention is used in conjunction with the strip holes symmetrically arranged in a scattered shape opened on the table top. The torsion mechanism and the locking mechanism slidably installed on the test mechanism can be adjusted to change the distance between the two. While adjusting the distance between the torsion mechanism and the locking mechanism, the spacing between different test mechanisms can also be changed, thereby avoiding mutual influence of the wiring harnesses between different test mechanisms.

[0025] The locking mechanism provided in the present invention can achieve stable compression of the end of the wire harness. The compression force of the end of the wire harness can be adjusted by simply rotating the handle, thereby ensuring the stability of the wire harness during tensile and torsion tests. It is also very convenient to remove the wire harness later, and only the handle needs to be rotated in the opposite direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 2 is a schematic structural diagram of a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0028] Figure 2 2 is a schematic diagram of the top structure of a table top in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0029] Figure 3 is an assembly diagram of an adjustment mechanism and a test mechanism in a vehicle wiring harness tension and torsion test device according to an embodiment of the present invention;

[0030] Figure 4 is a structural schematic diagram of an adjustment mechanism in a vehicle wiring harness tension and torsion testing device according to an embodiment of the present invention;

[0031] Figure 5 2 is a schematic structural diagram of an adjusting roller in a tensile torsion testing device for an automobile wiring harness according to an embodiment of the present invention;

[0032] Figure 6 is a structural schematic diagram of a testing mechanism in a vehicle wiring harness tension and torsion testing device according to an embodiment of the present invention;

[0033] Figure 7 is a schematic structural diagram of a strip plate in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0034] Figure 8 It is a structural schematic diagram of a torsion mechanism in a vehicle wiring harness tension torsion testing device according to an embodiment of the present invention;

[0035] Fig. 9 is a structural schematic diagram of a wire clamp in a vehicle wiring harness tension and torsion testing device according to an embodiment of the present invention;

[0036] Fig.10 is a structural schematic diagram of a fixing block in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0037] Fig.11 2 is a schematic structural diagram of a threaded rod in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0038] Fig.12 It is a structural schematic diagram of an insertion rod in a tensile torsion testing device for an automobile wiring harness according to an embodiment of the present invention;

[0039] Fig.13 It is a structural schematic diagram of a wire clamp block in a vehicle wire harness tensile torsion testing device according to an embodiment of the present invention;

[0040] Fig.14is an assembly diagram of a locking mechanism in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0041] Fig.15 It is a structural schematic diagram of a second mounting seat in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0042] Fig.16 is a structural schematic diagram of a locking mechanism in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0043] Fig.17 It is a structural schematic diagram of a lifting block in a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention;

[0044] Fig.18 2 is a schematic structural diagram of a pressure rod in a vehicle wiring harness tension and torsion testing device according to an embodiment of the present invention;

[0045] Fig.19 The present invention is a schematic structural diagram of a neutral plate of a vehicle wiring harness tensile torsion testing device according to an embodiment of the present invention.

[0046] Reference numerals:

[0047] 1. Table board; 2. Legs; 3. Bottom plate; 4. Adjustment mechanism; 5. Adjustment motor; 6. Test mechanism; 7. Wire tray; 8. Strip hole; 9. Fixed seat; 10. Cross plate; 11. End plate; 12. Adjustment roller; 13. Groove; 14. Adjustment shaft; 15. Driven pulley; 16. Active pulley; 17. Transmission belt; 18. Top plate; 19. First slide rail; 20. Slide hole; 21. U-shaped frame; 22. First slider; 23. Connecting plate; 24. Guide column; 25. Support frame; 26. Strip plate; 27. Reinforcement rod; 28. Guide rail; 29. ​​Torsion mechanism; 30. Locking mechanism; 31. Guide seat; 32. Fixed plate; 33. Vertical rod; 34. Guide roller; 35. Support plate; 36. First mounting seat; 37. Transmission box; 38. Torsion motor; 39. Wire clamp; 40. External frame ; 41. Assembly set; 42. Fixing block; 43. Wire clamping groove; 44. Threaded hole; 45. Threaded rod; 46. Turn handle; 47. Inserting rod; 48. Turning handle; 49. Inserting hole; 50. Push-pull plate; 51. Card plate; 52. Wire clamping block; 53. Anti-slip pattern; 54. Notch groove; 55. Arc groove; 56. Sliding rod; 57. Limiting hole; 58. Locking groove; 59. Locking block; 60. Second installation Seat; 61, vertical plate; 62, slot; 63, second slide rail; 64, lifting block; 65, second slide block; 66, pressing hole; 67, stop edge; 68, base; 69, pressure rod; 70, pressure block; 71, annular plate; 72, tightening spring; 73, extension block; 74, guide sleeve; 75, pressing groove; 76, assembly shaft; 77, eccentric wheel; 78, handle; 79, arc hole; 80, limit shaft. DETAILED DESCRIPTION

[0048] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0049] Example 1: Please refer to Figure 1-5 According to an embodiment of the present invention, a tensile torsion test device for automobile wiring harnesses comprises a table board 1, legs 2 are fixedly mounted at the bottom four corners of the table board 1, a bottom plate 3 is arranged directly below the table board 1, the four corners of the bottom plate 3 are fixedly mounted on the four legs 2, an adjustment mechanism 4 is arranged on the top of the bottom plate 3, an adjustment motor 5 for driving the adjustment mechanism 4 is also arranged on the bottom plate 3, a test mechanism 6 is arranged on the top of the adjustment mechanism 4, strip holes 8 are symmetrically opened along the center of the table board 1, a wire tray 7 is also arranged in the middle of the top of the table board 1, the strip holes 8 are distributed on both sides of the wire tray 7, and the strip holes 8 on each side are arranged in a scattered shape, the two ends of the top of the test mechanism 6 are arranged one by one with the strip holes 8, and the two ends of the top of the test mechanism 6 are arranged through the respective opposite strip holes 8. The two ends of the wiring harness to be tested are respectively fixed at the corresponding positions at the two ends of the top of the test mechanism 6, and then the test mechanism 6 can be adjusted by the adjustment mechanism 4 to realize the detection of the wiring harness.

[0050] The adjustment mechanism 4 includes a fixed seat 9 fixedly installed at the top center of the bottom plate 3, a horizontal plate 10 is fixedly installed at the top end of the fixed seat 9, and end plates 11 are fixedly installed at the top of both ends of the horizontal plate 10. An adjustment roller 12 is rotatably installed between the two end plates 11. Grooves 13 are symmetrically opened along the center on the outer wall of the adjustment roller 12, and the grooves 13 are spirally opened on the adjustment roller 12. The test mechanism 6 is provided with multiple groups, and the number of the test mechanisms 6 is equal to the number of the grooves 13 and corresponds one to one. The bottom center of the test mechanism 6 is slidably set in the corresponding groove 13. When the adjustment roller 12 is rotated by an external force, the adjustment roller 12 will drive the connected test mechanism 6 to move and adjust synchronously through the grooves 13 on its outer wall, and then the distance between two adjacent test mechanisms 6 can be changed to avoid mutual influence between each other during the test process.

[0051] An adjusting shaft 14 is fixedly mounted on one end of the adjusting roller 12, the adjusting shaft 14 passes through an end plate 11 on one side and is fixedly mounted with a driven pulley 15, a driving pulley 16 is fixedly mounted on the output shaft end of the adjusting motor 5, and the driven pulley 15 and the driving pulley 16 are connected via a transmission belt 17.

[0052] A top plate 18 is also fixedly installed on the top end of the end plate 11. The top plate 18 is arranged along the length direction of the cross plate 10, and a first slide rail 19 arranged along its length direction is symmetrically installed on the top plate 18 along the center. A slide hole 20 is also opened symmetrically along the center on the top plate 18. The slide hole 20 is parallel to the first slide rail 19. The bottom of the test mechanism 6 is slidably arranged on the first slide rail 19, and the bottom end of the test mechanism 6 is arranged through the slide hole 20.

[0053] See also Figure 6-7 The testing mechanism 6 includes a U-shaped frame 21, which is set upside down. The bottom end of the U-shaped frame 21 passes through the sliding hole 20. The first slider 22 is fixedly installed on the outer walls of both sides of the U-shaped frame 21. The first slider 22 is slidably arranged on the first slide rail 19. The bottom end of the U-shaped frame 21 is fixedly installed with a connecting plate 23. The bottom center of the connecting plate 23 is installed with a guide column 24. The guide column 24 is slidably arranged in the groove 13. When the adjusting roller 12 rotates, the guide column 24 can be driven to move through the groove 13, and the guide column 24 is then driven by the connecting plate 23. The movable U-shaped frame 21 moves, and the U-shaped frame 21 can be stably slid and adjusted on the first slide rail 19 through the first slider 22. A support frame 25 is fixedly installed at the top center of the U-shaped frame 21, and a strip plate 26 is fixedly installed at the top end of the support frame 25. The top of the strip plate 26 is symmetrically installed with guide rails 28 arranged along its length direction along the center. Guide seats 31 are slidably installed on the two guide rails 28, and a torsion mechanism 29 and a locking mechanism 30 are respectively installed on the two guide seats 31. The torsion mechanism 29 and the locking mechanism 30 are both arranged above the table top 1.

[0054] A reinforcing rod 27 is also installed through the top of the support frame 25, and both ends of the reinforcing rod 27 are fixedly installed on the bottom of the strip plate 26. The reinforcing rod 27 can increase the stability of the strip plate 26.

[0055] See also Figure 8-14 A fixing plate 32 is fixedly installed on the top of the guide seat 31, and a vertical rod 33 is fixedly installed on the top end of the fixing plate 32. The top of the vertical rod 33 passes through the strip hole 8, and a guide roller 34 is rotatably installed on the outside of the vertical rod 33. The guide roller 34 is rolled in the strip hole 8. A support plate 35 is fixedly installed on the top end of the vertical rod 33, and the torsion mechanism 29 and the locking mechanism 30 are respectively installed on the corresponding support plates 35.

[0056] The adjusting motor 5 is started, and the adjusting motor 5 drives the driven pulley 15 to rotate through the driving pulley 16 and the transmission belt 17, thereby realizing the rotation adjustment of the adjusting roller 12. When the adjusting roller 12 rotates, the guide column 24 is also driven to move through the groove 13 on its outer wall, and the guide column 24 is connected to the U-shaped frame 21 through the connecting plate 23, and the U-shaped frame 21 is slidably connected to the slide hole 20. Therefore, when the guide column 24 moves, the U-shaped frame 21 is driven to slide along the length direction of the slide hole 20 through the connecting plate 23, and the sliding of the U-shaped frame 21 can drive the strip plate 26 synchronously through the support frame 25. The strip plate 26 is slidably mounted on the guide rail 28, thereby realizing the movement and adjustment of the torsion mechanism 29 and the locking mechanism 30 which are slidably mounted on the top of the strip plate 26, so that the two test mechanisms 6 which are arranged adjacent to each other are moved away from each other to reduce the impact. When the torsion mechanism 29 and the locking mechanism 30 are moved and adjusted along the length direction of the sliding hole 20, the vertical rod 33 on the top of the guide seat 31 will also move in the strip hole 8. Through the adjustment of the strip hole 8, the vertical rod 33 will drive the torsion mechanism 29 and the locking mechanism 30 to move away from each other through the support plate 35, thereby realizing the stretching of the wiring harness while realizing the twisting of the torsion mechanism 29.

[0057] The torsion mechanism 29 includes a first mounting seat 36 fixedly mounted on the top of a side support plate 35, a transmission box 37 fixedly mounted on the top of the first mounting seat 36, a torsion motor 38 is mounted on the bottom of one end of the transmission box 37 away from the locking mechanism 30, the torsion motor 38 is mounted on the first mounting seat 36, and the output shaft of the torsion motor 38 is connected to the input shaft of the transmission box 37, a wire clamp 39 is fixedly mounted on the end of the output shaft of the transmission box 37, the wire clamp 39 is used to stably clamp one end of the wiring harness, and the other end of the wiring harness is fixed by the locking mechanism 30, and the torsion motor 38 is started, and the torsion motor 38 can drive the wire clamp 39 to rotate through the transmission box 37, thereby realizing the torsion test of the wiring harness.

[0058] The wire clamp 39 includes an outer frame 40, a mounting sleeve 41 is fixedly installed in the middle of one end of the outer frame 40, the mounting sleeve 41 is fixedly installed on the output shaft end of the transmission box 37, a fixing block 42 is fixedly installed on the end of the outer frame 40 away from the mounting sleeve 41, a wire clamping groove 43 is provided on the top of the fixing block 42 away from the outer frame 40, a threaded hole 44 is also provided on the fixing block 42, which is arranged opposite to the mounting sleeve 41, the threaded hole 44 is connected to the wire clamping groove 43, a threaded rod 45 is threadedly installed in the threaded hole 44, a plug hole 49 is also provided in the center of the threaded rod 45, a plug rod 47 is inserted in the plug hole 49, one end of the plug rod 47 is inserted in the mounting sleeve In the matching 41, a push-pull plate 50 is fixedly installed on the other end of the insertion rod 47. The push-pull plate 50 is arranged in the wire clamping groove 43. Two wire clamping blocks 52 are symmetrically installed in the wire clamping groove 43. The wire clamping groove 43 is gradually narrowed and inclined from the bottom to the opening. The side walls of the two wire clamping blocks 52 that are away from each other are against the side walls of the wire clamping groove 43. A notch groove 54 is provided on the opposite end faces of the two wire clamping blocks 52. The notch groove 54 is arranged close to the threaded hole 44, and an arc groove 55 is provided on the side wall of the notch groove 54 close to the threaded hole 44. A clamping plate 51 is fixedly installed on the end of the push-pull plate 50 away from the insertion rod 47, and the clamping plate 51 is clamped in the notch groove 54.

[0059] By rotating the threaded rod 45, the threaded rod 45 can move in the threaded hole 44. The movement of the threaded rod 45 will push the push-pull plate 50 to move synchronously. The push-pull plate 50 can stably move along the length direction of the threaded rod 45 by means of the insertion rod 47. When the push-pull plate 50 moves, it will drive the clamping plate 51 to move. The clamping plate 51 then drives the wire clamping block 52 to move through the notch groove 54. Through the inner side wall of the wire clamping groove 43, the distance between the two wire clamping blocks 52 can be adjusted to achieve clamping of the wire harness end.

[0060] A rotating handle 46 is fixedly installed on the outside of the end of the threaded rod 45 close to the assembly sleeve 41, and a rotating handle 48 is fixedly installed on the outside of the rotating handle 46. Anti-slip grooves 53 are provided on the opposite sides of the two clamping blocks 52. A limiting hole 57 is provided at the bottom of the clamping groove 43. The limiting hole 57 is arranged along the length direction of the side wall of the clamping groove 43. A sliding rod 56 is fixedly installed on one end face of the clamping block 52 facing the limiting hole 57. The sliding rod 56 is slidably arranged in the limiting hole 57. The threaded rod 45 can be easily rotated and adjusted through the rotating handle 48 outside the rotating handle 46, and the matching arrangement of the limiting hole 57 and the sliding rod 56 can make the clamping block 52 more stable to achieve adjustment.

[0061] The fixing block 42 is provided with locking grooves 58 on both sides of the clamping groove 43, and a locking block 59 is fixedly installed in the locking groove 58, and one end of the locking block 59 protrudes from the locking groove 58. The locking block 59 can limit the clamping block 52 in the clamping groove 43.

[0062] Through the above-mentioned scheme of the present invention, the test mechanism 6 designed by the present invention is used in conjunction with the strip holes 8 symmetrically arranged in a scattered shape opened on the table top 1, and the torsion mechanism 29 and the locking mechanism 30 slidingly installed on the test mechanism 6 can be adjusted to change the distance between the two. While adjusting the distance between the torsion mechanism 29 and the locking mechanism 30, the spacing between different test mechanisms 6 can also be changed, thereby avoiding mutual influence of the wiring harnesses between different test mechanisms 6.

[0063] Example 2: Please refer to Figure 14-19 For the first embodiment, in order to enable the locking mechanism 30 to stably clamp the other end of the wire harness when the torsion mechanism 29 drives the wire harness to torsion, in this embodiment, the locking mechanism 30 includes a second mounting seat 60 fixedly mounted on the top of the guide seat 31 arranged away from the torsion mechanism 29, a slot 62 is provided on the top of the second mounting seat 60, a vertical plate 61 is fixedly inserted inside the slot 62, and a vertically arranged second slide rail 63 is symmetrically installed along the center of the vertical plate 61 on one end surface facing the torsion mechanism 29, a second slider 65 is slidably installed on the second slide rail 63, and a lifting block 64 is fixedly installed on the end surface of the second slider 65 away from the second slide rail 63, and the lifting block 64 is fixedly installed on the lifting block 64. A pressing hole 66 is provided at the bottom center of the vertical plate 61, the bottom aperture of the pressing hole 66 is larger than the top aperture of the pressing hole 66, a retaining edge 67 is provided inside the pressing hole 66, a base 68 is also fixedly installed on the vertical plate 61, the base 68 is arranged just below the lifting block 64, a pressing rod 69 is also provided between the base 68 and the lifting block 64, the top end of the pressing rod 69 is inserted into the pressing hole 66, and an annular plate 71 is fixedly installed outside the pressing rod 69, a tightening spring 72 is provided between the annular plate 71 and the pressing hole 66, the tightening spring 72 is sleeved on the outside of the pressing rod 69, and the top end of the tightening spring 72 is tightly against the retaining edge 67, and a pressing block 70 is fixedly installed at the bottom end of the pressing rod 69.

[0064] When a force is applied to the lifting block 64 to move toward the base 68, the lifting block 64 can move toward the base 68 along the second slide rail 63 through the second slider 65. The movement of the lifting block 64 will squeeze the clamping spring 72 through the stop edge 67 in the pressure hole 66. The clamping spring 72 can squeeze the annular plate 71 through the stop edge 67, so that the annular plate 71 can drive the pressure rod 69 to move toward the base 68, and then the pressure block 70 can be pressed against the base 68. If the end of the wire harness is placed between the pressure block 70 and the base 68, stable clamping of the end of the wire harness can be achieved.

[0065] An extension block 73 is fixedly mounted on the vertical plate 61 , a guide sleeve 74 is penetrated in the extension block 73 , the pressure rod 69 is penetrated through the guide sleeve 74 , a pressure groove 75 is formed on the top of the base 68 , and the pressure groove 75 is arranged opposite to the pressure block 70 .

[0066] The vertical plate 61 is also fixedly mounted with an assembly shaft 76, which is arranged between the two second slide rails 63. An eccentric wheel 77 is rotatably mounted on the outside of the assembly shaft 76, and an arc-shaped hole 79 arranged around the assembly shaft 76 is provided on the eccentric wheel 77. A limit shaft 80 is also fixedly mounted on the vertical plate 61, and the limit shaft 80 is slidably arranged in the arc-shaped hole 79. A handle 78 is also fixedly mounted on the outer wall of the eccentric wheel 77. The eccentric wheel 77 can be rotated around the assembly shaft 76 by rotating the eccentric wheel 77 with the handle 78. When the eccentric wheel 77 rotates, it squeezes the lifting block 64 through its bottom wall, thereby adjusting the pressure between the pressing block 70 and the pressing groove 75, and ensuring stable pressing of the end of the wire harness.

[0067] Through the above-mentioned scheme of the present invention, the locking mechanism 30 provided in the present invention can achieve stable compression of the end of the wire harness. The compression force of the end of the wire harness can be adjusted by simply rotating the handle 78, thereby ensuring the stability of the wire harness during tensile and torsion tests. It is also very convenient to remove the wire harness later, and only the handle 78 needs to be rotated in the opposite direction.

[0068] Embodiment 3: For Embodiment 1 and Embodiment 2, in order to better reflect the actual use effect of the above-mentioned automobile wiring harness tensile torsion test device, this embodiment also discloses a method for testing the wiring harness of the above-mentioned automobile wiring harness tensile torsion test device, comprising the following steps:

[0069] S1. Adjust the distance between the torsion mechanism 29 and the locking mechanism 30 according to the length of the wiring harness to be tested;

[0070] S2, fix one end of the wire harness between the pressing block 70 and the pressing groove 75, and fix the other end of the wire harness by the wire clamp 39;

[0071] S3, starting the adjusting motor 5, and performing a tensile test on the wire harness by rotating the adjusting roller 12;

[0072] S4, starting the torsion motor 38, and performing a torsion test on the wire harness while the wire harness is stretched in step S3.

[0073] It can be seen from the above usage method that stretching and torsion can be carried out simultaneously during the whole process, ensuring the high efficiency of the test.

[0074] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0075] The test mechanism 6 designed in the present invention is used in conjunction with the strip holes 8 symmetrically arranged in a scattered shape opened on the table top 1. The torsion mechanism 29 and the locking mechanism 30 slidably installed on the test mechanism 6 can be adjusted to change the distance between the two. While adjusting the distance between the torsion mechanism 29 and the locking mechanism 30, the spacing between different test mechanisms 6 can also be changed, thereby avoiding mutual influence of the wiring harnesses between different test mechanisms 6.

[0076] The locking mechanism 30 provided in the present invention can achieve stable compression of the end of the wire harness. The compression force of the end of the wire harness can be adjusted by simply rotating the handle 78, thereby ensuring the stability of the wire harness during tensile and torsion tests. It is also very convenient to remove the wire harness later, and only the handle 78 needs to be rotated in the opposite direction.

[0077] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle wiring harness tensile torsion test device, comprising a table (1), characterized in that: The four corners of the bottom of the table top (1) are fixedly provided with supporting legs (2); a bottom plate (3) is also provided directly below the table top (1); an adjusting mechanism (4) is installed on the top of the bottom plate (3); an adjusting motor (5) for driving the adjusting mechanism (4) is also installed on the bottom plate (3); a testing mechanism (6) is installed on the top of the adjusting mechanism (4); strip holes (8) are symmetrically provided along the center of the table top (1); a wire tray (7) is also installed in the middle of the top of the table top (1); the strip holes (8) are distributed on both sides of the wire tray (7), and the strip holes (8) on each side are arranged in a scattered manner; the two ends of the top of the testing mechanism (6) are respectively arranged in a one-to-one correspondence with the strip holes (8); and the two ends of the top of the testing mechanism (6) are respectively arranged through the respective opposite strip holes (8); The adjustment mechanism (4) comprises a fixing seat (9) fixedly mounted at the top center of the bottom plate (3); a transverse plate (10) is fixedly mounted at the top end of the fixing seat (9); end plates (11) are fixedly mounted at the tops of both ends of the transverse plate (10); an adjustment roller (12) is rotatably mounted between the two end plates (11); grooves (13) are symmetrically provided on the outer wall of the adjustment roller (12) along the center; the grooves (13) are spirally provided on the adjustment roller (12); and the testing mechanism (6) comprises a plurality of groups, The number of the test mechanisms (6) is equal to the number of the grooves (13) and corresponds one to one. The bottom center of the test mechanism (6) is slidably arranged in the corresponding groove (13). The top end of the end plate (11) is also fixedly mounted with a top plate (18). The top plate (18) is symmetrically mounted with a first slide rail (19) arranged along its length direction. The top plate (18) is also symmetrically opened with a slide hole (20) along the center. The bottom of the test mechanism (6) is slidably arranged on the first slide rail (19).

2. The automobile wiring harness tensile torsion testing device and testing method thereof according to claim 1, characterized in that: An adjusting shaft (14) is fixedly mounted on one end of the adjusting roller (12); the adjusting shaft (14) passes through an end plate (11) on one side and is fixedly mounted with a driven pulley (15); a driving pulley (16) is fixedly mounted on the end of the output shaft of the adjusting motor (5); the driven pulley (15) and the driving pulley (16) are connected to each other via a transmission belt (17).

3. The automobile wiring harness tensile torsion testing device according to claim 2, characterized in that: The testing mechanism (6) comprises a U-shaped frame (21) arranged in an inverted manner, the bottom end of the U-shaped frame (21) passes through a sliding hole (20), first sliding blocks (22) are fixedly installed on the outer walls of both sides of the U-shaped frame (21), the first sliding blocks (22) are slidably arranged on the first sliding rails (19), a connecting plate (23) is fixedly installed on the bottom end of the U-shaped frame (21), a guide column (24) is installed at the bottom center of the connecting plate (23), and the guide column (24) ) is slidably arranged in the groove (13), a support frame (25) is fixedly installed at the top center of the U-shaped frame (21), a strip plate (26) is fixedly installed at the top end of the support frame (25), and a guide rail (28) arranged along its length direction is symmetrically installed along the center of the top of the strip plate (26), and guide seats (31) are slidably installed on the two guide rails (28), and a torsion mechanism (29) and a locking mechanism (30) are respectively installed on the two guide seats (31).

4. The automobile wiring harness tensile torsion testing device according to claim 3, characterized in that: A reinforcing rod (27) is also installed through the top of the support frame (25), and both ends of the reinforcing rod (27) are fixedly installed on the bottom of the strip plate (26). A fixing plate (32) is fixedly installed on the top of the guide seat (31), and a vertical rod (33) is fixedly installed on the top end of the fixing plate (32). The top of the vertical rod (33) passes through the strip hole (8), and a guide roller (34) is rotatably installed on the outside of the vertical rod (33). The guide roller (34) is rollingly arranged in the strip hole (8). A supporting plate (35) is fixedly installed on the top end of the vertical rod (33), and the torsion mechanism (29) and the locking mechanism (30) are respectively installed on the corresponding supporting plates (35).

5. The automobile wiring harness tensile torsion testing device according to claim 4, characterized in that: The torsion mechanism (29) comprises a first mounting seat (36) fixedly mounted on the top of a side support plate (35); a transmission box (37) is fixedly mounted on the top of the first mounting seat (36); a torsion motor (38) is mounted on the bottom of one end of the transmission box (37) away from the locking mechanism (30); the torsion motor (38) is mounted on the first mounting seat (36); an output shaft of the torsion motor (38) is connected to an input shaft of the transmission box (37); and a wire clamp (39) is fixedly mounted on the end of the output shaft of the transmission box (37).

6. The automobile wiring harness tensile torsion testing device according to claim 5, characterized in that: The wire clamp (39) comprises an outer frame (40), a mounting sleeve (41) is fixedly installed in the middle of one end of the outer frame (40), the mounting sleeve (41) is fixedly installed on the output shaft end of the transmission box (37), a fixing block (42) is fixedly installed at one end of the outer frame (40) away from the mounting sleeve (41), a wire clamping groove (43) is provided at the top of one end of the fixing block (42) away from the outer frame (40), a threaded hole (44) is also provided on the fixing block (42) and is arranged opposite to the mounting sleeve (41), the threaded hole (44) is connected to the wire clamping groove (43), a threaded rod (45) is threadedly installed in the threaded hole (44), a plug hole (49) is also provided at the center of the threaded rod (45), and a plug rod (47) is inserted into the plug hole (49), One end of the insertion rod (47) is inserted into the assembly sleeve (41), and the other end of the insertion rod (47) is fixedly installed with a push-pull plate (50), and the push-pull plate (50) is arranged in the wire clamping groove (43). Two wire clamping blocks (52) are symmetrically installed in the wire clamping groove (43), and the wire clamping groove (43) is gradually narrowed and inclined from the bottom to the opening. The side walls of the two wire clamping blocks (52) that are away from each other are against the side wall of the wire clamping groove (43), and the opposite end surfaces of the two wire clamping blocks (52) are provided with a notch groove (54), and the side wall of the notch groove (54) close to the threaded hole (44) is provided with an arc groove (55), and the end of the push-pull plate (50) away from the insertion rod (47) is fixedly installed with a clamping plate (51), and the clamping plate (51) is clamped in the notch groove (54).

7. The automobile wiring harness tensile torsion testing device according to claim 6, characterized in that: A turning handle (46) is fixedly installed on the outside of one end of the threaded rod (45) close to the assembly sleeve (41), and a turning handle (48) is fixedly installed on the outside of the turning handle (46). Anti-slip grooves (53) are provided on the opposite side surfaces of the two clamping blocks (52). A limiting hole (57) is provided at the bottom of the clamping groove (43), and the limiting hole (57) is arranged along the length direction of the side wall of the clamping groove (43). A sliding rod (56) is fixedly installed on one end surface of the clamping block (52) facing the limiting hole (57), and the sliding rod (56) is slidably arranged in the limiting hole (57). Locking grooves (58) are also provided on the fixed block (42) at both sides of the clamping groove (43), and a locking block (59) is fixedly installed in the locking groove (58), and one end of the locking block (59) protrudes from the locking groove (58).

8. The automobile wiring harness tensile torsion testing device according to claim 7, characterized in that: The locking mechanism (30) comprises a second mounting seat (60) fixedly mounted on the top of a guide seat (31) arranged away from the torsion mechanism (29); a slot (62) is provided on the top of the second mounting seat (60); a vertical plate (61) is fixedly inserted inside the slot (62); a second slide rail (63) is symmetrically mounted on one end surface of the vertical plate (61) facing the torsion mechanism (29); a second slider (65) is slidably mounted on the second slide rail (63); a lifting block (64) is fixedly mounted on one end surface of the second slider (65) away from the second slide rail (63); a pressing hole (66) is provided at the center of the bottom of the lifting block (64); the bottom diameter of the pressing hole (66) is larger than the hole diameter at the top of the pressing hole (66). The pressure hole (66) has a retaining edge (67) inside, and a base (68) is fixedly mounted on the vertical plate (61). The base (68) is arranged directly below the lifting block (64). A pressure rod (69) is arranged between the base (68) and the lifting block (64). The top end of the pressure rod (69) is inserted into the pressure hole (66). An annular plate (71) is fixedly mounted on the outside of the pressure rod (69). A tensioning spring (72) is arranged between the annular plate (71) and the pressure hole (66). The tensioning spring (72) is sleeved on the outside of the pressure rod (69). The top end of the tensioning spring (72) is tightly against the retaining edge (67). A pressure block (70) is fixedly mounted on the bottom end of the pressure rod (69).

9. The automobile wiring harness tensile torsion testing device according to claim 8, characterized in that: An extension block (73) is fixedly mounted on the vertical plate (61), a guide sleeve (74) is installed in the extension block (73), the pressure rod (69) is installed through the guide sleeve (74), a pressing groove (75) is provided on the top of the base (68), and the pressing groove (75) is arranged opposite to the pressing block (70), an assembly shaft (76) is fixedly mounted on the vertical plate (61), the assembly shaft (76) is arranged between the two second slide rails (63), an eccentric wheel (77) is rotatably mounted on the outside of the assembly shaft (76), an arc-shaped hole (79) arranged around the assembly shaft (76) is opened on the eccentric wheel (77), a limit shaft (80) is fixedly mounted on the vertical plate (61), the limit shaft (80) is slidably arranged in the arc-shaped hole (79), and a handle (78) is fixedly mounted on the outer wall of the eccentric wheel (77).

10. A testing method for the automobile wiring harness tensile torsion testing device according to claim 9, characterized in that: The steps include: S1, adjusting the distance between the twisting mechanism (29) and the locking mechanism (30) according to the length of the wiring harness to be tested; S2, fixing one end of the wire harness between the pressing block (70) and the pressing groove (75), and fixing the other end of the wire harness by a wire clamp (39); S3, starting the adjustment motor (5), and performing a tensile test on the wire harness by rotating the adjustment roller (12); S4, starting the twisting motor (38), and performing a twisting test on the wire harness while the wire harness is stretched in step S3.

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