A wire harness testing device

Abstract

The present invention relates to the field of wire harness detection, and discloses a wire harness detection device, comprising a detection frame and a U-shaped frame, wherein a switching frame is arranged in the detection frame, a detection structure is arranged on the U-shaped frame, an L-shaped rod is arranged on the detection structure, a driving rod is arranged at the end of the L-shaped rod through a pull-out structure, a switching structure is arranged on the switching frame, a placement frame is arranged in the switching frame through an installation structure, two groups of placement seats are fixedly embedded at left and right sides of the placement frame, and multiple groups of placement seats are evenly spaced, a pressing structure is arranged on the placement frame, and the wire harness to be detected is directly laid in the placement frame in sequence, so that when the detection structure performs a wire harness stretching detection, the driving rod and the switching structure can be used to automatically switch the next wire harness to the detection structure after detecting one of the wire harnesses, and continue the detection work, so that the operation is more time-saving and labor-saving, and the work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness detection, and in particular to a wire harness detection device. Background Art

[0002] With the continuous development of society and the continuous improvement of people's living standards, the demand for automobiles is also gradually increasing. Automobiles require a large number of wiring harnesses in the production process. Before using the wiring harnesses, testing equipment is needed to test the quality of the wiring harnesses.

[0003] The wire harness detection device in the prior art allows the wire harness to pass through the limiting groove so that the wire harness terminal is located in the annular limiting portion, so that the wire harness terminal is limited by the limiting groove, and the driving component drives the gear one to rotate, which can synchronously drive the gear one and the gear two to rotate in opposite directions, thereby making the clamping wheel one and the clamping wheel two rotate synchronously and in opposite directions, so that the edges of the clamping wheel one and the clamping wheel two can be gradually attached to each other, thereby forming a clamping gap, and the wire harness can be clamped in the clamping gap. Since the clamping wheel one and the clamping wheel two are pressurized synchronously, a wire harness of any size can be kept in the center position without deviation, thereby avoiding excessive deviation between the wire harness terminal and damage caused during stretching, and the clamping process is simple;

[0004] However, in the actual detection process, one end of the manual wire harness needs to be clamped into the corresponding circular limit portion on the turntable, and the wire harness is passed through clamping wheel one and clamping wheel two to be clamped before detection. When multiple wire harnesses need to be detected, such operation will increase the difficulty of the inspector's work and reduce work efficiency. Therefore, there is room for improvement. Summary of the invention

[0005] In order to solve the problems mentioned in the background technology, the present invention provides a detection device for a wire harness.

[0006] The present invention provides a wire harness detection device that adopts the following technical solution:

[0007] A detection device for a wire harness, comprising a detection frame and a U-shaped frame, wherein a switching frame is arranged in the detection frame, a detection structure is arranged on the U-shaped frame, an L-shaped rod is arranged on the detection structure, a driving rod is arranged at the end of the L-shaped rod through a pull-out structure, a switching structure is arranged on the switching frame, a placement frame is arranged in the switching frame through an installation structure, two groups of placement seats are fixedly embedded on the left and right sides of the placement frame, and multiple groups of placement seats are evenly spaced, and a pressing structure is arranged on the placement frame;

[0008] The switching structure includes a first driving groove opened on the switching frame at each placement seat position, and a second driving groove is opened on the switching frame between two adjacent placement seats. The first driving groove and the second driving groove are both in an "L" shape, and the bottom end of the driving rod is movably inserted into the first driving groove at the front end position.

[0009] Preferably, the mounting structure includes a placement slot provided in the middle of the switching frame, the placement frame is placed in the placement slot, and a card block is movably passed through the middle of the front and rear side surfaces of the switching frame, the card block movably passes through the slot provided on the placement frame, and pull frames are respectively installed on the side surfaces of the two card blocks away from each other, and a second spring is connected between the pull frame and the switching frame.

[0010] Preferably, the clamping structure includes two first grooves opened at the rear edge of the placement frame, a second rotating shaft is rotatably connected between the groove walls on both sides of each of the first grooves, a connecting block is fixedly sleeved on each of the second rotating shafts, a clamping frame is installed on the top of the two connecting blocks, a positioning rod is rotatably passed through the middle of the front edge of the clamping frame, the positioning rod is provided with a thread, the positioning rod is rotatably inserted into the threaded groove opened on the placement frame, a clamping block is installed at the position of each placement seat below the clamping frame, and a clamping pad is provided in each of the placement seats.

[0011] Preferably, guide blocks are installed on the front sides of the left and right sides of the switching frame, and guide grooves are opened on the left and right side surfaces of the detection frame. The guide blocks are slidably arranged in the guide grooves, and the end faces of the guide blocks and the guide grooves are both in a "T" shape.

[0012] Preferably, the detection structure includes two screw rods that rotate and pass through the left and right side surfaces of the U-shaped frame, the two screw rods are connected by a connecting rod, a motor is installed on the left side surface of the U-shaped frame, one end of the motor output shaft is connected to the corresponding screw rod, reciprocating blocks are tightly arranged on both sides of the inner wall of the U-shaped frame, the reciprocating blocks are provided with threaded grooves for the screw rods to pass through, a clamping structure is arranged at the bottom end of each reciprocating block, and a transmission structure is arranged in the middle of the U-shaped frame.

[0013] Preferably, the clamping structure includes a second groove opened under the reciprocating block, and a first rotating shaft is rotated through both sides of the front side of the groove wall of the second groove, and a clamping strip is fixedly sleeved on the part of the first rotating shaft inserted into the second groove, and a clamping block is installed on the clamping strip at one end away from the reciprocating block.

[0014] Preferably, the transmission structure includes a U-shaped seat installed in the middle of the U-shaped frame, an electric telescopic rod is installed in the middle of the U-shaped seat, a lifting frame for the connecting rod to pass through is installed on the bottom end of the output shaft of the electric telescopic rod, and a vertical plate is installed in the middle of the bottom of the lifting frame. Two connecting strips are connected to the lower inner wall of the U-shaped frame near the U-shaped seat, and a rotating drum is rotatably passed through the two connecting strips near the bottom end, and a driving frame is fixedly passed through the rotating drum, one end of the first rotating shaft is movably inserted into the driving frame, and the end faces of the driving frame and the first rotating shaft are both square, and a gear is fixedly provided on the middle of the driving frame, and teeth meshing with the gear are provided on the vertical plate.

[0015] Preferably, the pulling structure includes a fixed sleeve fixedly mounted on the L-shaped rod, a pulling sleeve is arranged directly below the fixed sleeve, the pulling sleeve is fixedly installed on the top end of the driving rod, the pulling sleeve and the driving rod are both movably mounted on the L-shaped rod, and a first spring is connected between the fixed sleeve and the pulling sleeve.

[0016] In summary, the present invention includes the following beneficial technical effects:

[0017] The present invention is provided with a detection structure, a switching structure, an L-shaped rod, a driving rod and a placement frame, so that the wire harness to be detected can be directly laid in the placement frame in sequence, so that when the detection structure performs a stretching detection on the wire harness, the driving rod and the switching structure can be used to automatically switch the next wire harness to the detection structure after detecting one of the wire harnesses, and continue the detection work, so that the operation is more time-saving and labor-saving, and the work efficiency is improved;

[0018] The present invention provides a mounting structure and a pressing structure on the switching frame, and can press the wire harness after laying the wire harness on the placement frame, so as to avoid the problem that the wire harness falls off the placement frame during detection;

[0019] The present invention is provided with a clamping structure and a transmission structure on the U-shaped frame. Under the action of the transmission structure, two groups of clamping strips and clamping blocks on the clamping structure can be driven simultaneously to clamp or release the wiring harness to perform detection work. The structure is simple and the function is practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a wire harness detection device according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of the switching frame in an embodiment of the present invention;

[0022] Figure 3 In the embodiment of the present invention Figure 2 A magnified view of the structure at A;

[0023] Figure 4 In the embodiment of the present invention Figure 2 A magnified view of the structure at B;

[0024] Figure 5 It is a structural schematic diagram of a U-shaped frame in an embodiment of the present invention;

[0025] Figure 6 In the embodiment of the present invention Figure 5 A magnified view of the structure at C;

[0026] Figure 7 In the embodiment of the present invention Figure 5 Enlarged view of the structure at D.

[0027] Explanation of the accompanying drawings: 1. detection frame; 2. guide groove; 3. switching frame; 4. placement frame; 5. U-shaped frame; 6. L-shaped rod; 7. placement seat; 8. first driving groove; 9. second driving groove; 10. placement groove; 11. pulling frame; 12. clamping block; 13. first groove; 14. connecting block; 15. clamping frame; 16. clamping block; 17. clamping pad; 18. positioning rod; 19. guide block; 20. motor; 21. screw; 22. connecting rod; 23. driving rod; 24. pulling sleeve; 25. fixing sleeve; 26. first spring; 27. second groove; 28. clamping strip; 29. ​​clamping block; 30. first rotating shaft; 31. U-shaped seat; 32. electric telescopic rod; 33. lifting frame; 34. vertical plate; 35. gear; 36. driving frame; 37. reciprocating block; 38. rotating drum; 39. connecting strip. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 7 The present invention is described in further detail.

[0029] The embodiment of the present invention discloses a wire harness detection device, including a detection frame 1 and a U-shaped frame 5, a switching frame 3 is arranged in the detection frame 1, a detection structure is arranged on the U-shaped frame 5, an L-shaped rod 6 is arranged on the detection structure, a driving rod 23 is arranged at the end of the L-shaped rod 6 through a pull-out structure, a switching structure is arranged on the switching frame 3, a placement frame 4 is arranged in the switching frame 3 through an installation structure, two groups of placement seats 7 are fixedly embedded on the left and right sides of the placement frame 4, the placement seats 7 are in a "U" shape, and multiple groups of placement seats 7 are evenly spaced, and a pressing structure is arranged on the placement frame 4;

[0030] The switching structure includes a first driving groove 8 provided on the switching frame 3 at the position of each placement seat 7, and a second driving groove 9 is provided on the switching frame 3 between two adjacent placement seats 7, and the first driving groove 8 and the second driving groove 9 are both in an "L" shape (the shapes of the first driving groove 8 and the second driving groove 9 are as shown in FIG. Figure 3As shown in the figure, the bottom end of the driving rod 23 is movably inserted into the first driving groove 8 at the front end position; guide blocks 19 are installed on the front sides of the left and right sides of the switching frame 3, and guide grooves 2 are opened on the left and right sides of the detection frame 1. The guide blocks 19 are slidably arranged in the guide grooves 2, and the end faces of the guide blocks 19 and the guide grooves 2 are both in a "T" shape;

[0031] The pull-out structure includes a fixed sleeve 25 fixedly sleeved on the L-shaped rod 6, a pulling sleeve 24 is arranged directly below the fixed sleeve 25, the pulling sleeve 24 is fixedly mounted on the top of the driving rod 23, the pulling sleeve 24 and the driving rod 23 are both movably sleeved on the L-shaped rod 6, a slot for the L-shaped rod 6 to be inserted is provided on the driving rod 23, a first spring 26 is connected between the fixed sleeve 25 and the pulling sleeve 24, when the pulling sleeve 24 is used to drive the driving rod 23 to move upward on the L-shaped rod 6 to squeeze the first spring 26, the bottom end of the driving rod 23 can be pulled out from the first driving groove 8, so that the switching frame 3 can be manually moved on the detection frame 1 to reset the switching frame 3;

[0032] The detection structure includes two screws 21 that rotate and pass through the left and right side surfaces of the U-shaped frame 5. The threads on the two screws 21 are in opposite directions. The two screws 21 are connected by a connecting rod 22. A motor 20 is installed on the left side surface of the U-shaped frame 5. One end of the output shaft of the motor 20 is connected to the corresponding screw 21. Reciprocating blocks 37 are tightly arranged on both sides of the inner wall of the U-shaped frame 5. The reciprocating blocks 37 are provided with thread grooves for the screws 21 to pass through. A clamping structure is arranged at the bottom end of each reciprocating block 37. A transmission structure is arranged in the middle of the U-shaped frame 5 to lay the wiring harness to be detected in the placement seat 7 of the placement frame 4. After that, the motor 20 can be started, and the two screw rods 21 can be driven to rotate through the connecting rod 22. The two reciprocating blocks 37 are respectively on the two rotating screw rods 21, and move synchronously in the direction of approaching each other. When the reciprocating block 37 drives the section of the driving rod 23 to slide in the inclined section of the first driving groove 8, the driving rod 23 squeezes the groove wall of the first driving groove 8, and automatically pushes the switching frame 3 and the placement frame 4 to move as a whole on the detection frame 1, and then the wiring harness laid on the placement frame 4 is transported to the position directly below the reciprocating block 37. When the driving rod 23 slides to the junction of the inclined section and the horizontal section of the first driving groove 8, it can Utilize the clamping structures on the two reciprocating blocks 37 to clamp the positions near the two ends of the wiring harness respectively. At this time, the motor 20 continues to drive the screw rod 21 to rotate, and the two reciprocating blocks 37 continue to move toward each other to test the stretching capacity of the wiring harness. At the same time, the reciprocating block 37 drives the bottom end of the driving rod 23 to slide at the horizontal section of the first driving groove 8, and the switching frame 3 is kept in a fixed position on the detection frame 1 to avoid the switching frame 3 moving on the detection frame 1 when the wiring harness is detected. After the detection, the clamping structure releases the wiring harness, and the reciprocating block 37 drives the bottom end of the driving rod 23 to slide to the first driving groove 8. At the junction between the first driving groove 8 and the second driving groove 9, the clamping structure releases the wiring harness, and the motor 20 drives the screw 21 to rotate in the opposite direction. The two reciprocating blocks 37 move synchronously in opposite directions on the two rotating screws 21, and drive the bottom end of the driving rod 23 to slide in the second driving groove 9. The driving rod 23 squeezes the groove wall of the second driving groove 9, pushing the switching frame 3 to continue to move on the detection frame 1, thereby automatically switching the next wiring harness to be detected on the placement frame 4 to the bottom of the reciprocating block 37, and continuing the detection work. The operation is more labor-saving and convenient, and the detection efficiency is greatly improved.

[0033] See also Figure 1-Figure 4The installation structure includes a placement groove 10 provided in the middle of the switching frame 3, the placement frame 4 is placed in the placement groove 10, and the middle of the front and rear sides of the switching frame 3 are movably penetrated by a card block 12, the card block 12 movably passes through the card slot provided on the placement frame 4, and the two card blocks 12 are respectively installed with a pull frame 11 on the side away from each other, and a second spring is connected between the pull frame 11 and the switching frame 3. When the two card blocks 12 are pulled out by two pull frames 11 on the switching frame 3, the placement frame 4 can be directly placed in the placement groove 10 on the switching frame 3, and the pull frame 11 is released. Under the elastic force of the second spring, the card block 12 on the pull frame 11 is pulled and inserted into the card slot on the placement frame 4, so that the installation or removal operation of the placement frame 4 on the switching frame 3 is simpler and more convenient, thereby facilitating the removal of the placement frame 4 on the switching frame 3 and facilitating the laying of the wiring harness on the placement frame 4;

[0034] The clamping structure includes two first grooves 13 provided at the rear edge of the placement frame 4, a second rotating shaft is rotatably connected between the groove walls on both sides of each first groove 13, a connecting block 14 is fixedly sleeved on each second rotating shaft, a clamping frame 15 is installed on the two connecting blocks 14, a positioning rod 18 is rotatably passed through the middle of the front edge of the clamping frame 15, a thread is provided on the positioning rod 18, the positioning rod 18 is rotatably inserted into the thread groove provided on the placement frame 4, a clamping block 16 is installed at the position of each placement seat 7 below the clamping frame 15, a clamping pad 17 is provided in each placement seat 7, the clamping pad 17 is a rubber pad, when laying the wiring harness, the bottom end of the positioning rod 18 can be turned out from the thread groove of the switching frame 3 to release the clamping block 16. The clamping frame 15 is fixed on the placement frame 4, and then, with the second rotating shaft as the axis, the clamping frame 15 is rotated from the placement frame 4 to expose the placement seat 7 on the placement frame 4, and the wiring harness is laid in the two groups of placement seats 7 in turn, and a clamping pad 17 is provided in the placement seat 7, and the two ends of the wiring harness can be clamped into the clamping pad 17, so that the wiring harness is pre-clamped in the placement seat 7, and then, with the axis of the second rotating shaft, the clamping frame 15 is rotated to the placement frame 4 again, and the clamping block 16 on the clamping frame 15 is used to clamp and fix the two ends of the wiring harness in the placement seat 7, so that during the detection process, not only the problem of the wiring harness falling off is avoided, but also it can be ensured that after the clamping structure clamps the wiring harness, it can smoothly move toward the middle to pull the wiring harness for detection.

[0035] See also Figure 1 and Figure 5The clamping structure includes a second groove 27 provided below the reciprocating block 37, and the first rotating shaft 30 is rotatably passed through the groove wall of the second groove 27 on both sides of the front side, and a clamping strip 28 is fixedly sleeved on the part of the first rotating shaft 30 inserted into the second groove 27, and a clamping block 29 is installed on the clamping strip 28 at one end away from the reciprocating block 37; the transmission structure includes a U-shaped seat 31 installed in the middle of the upper part of the U-shaped frame 5, an electric telescopic rod 32 is installed in the middle of the upper part of the U-shaped seat 31, and a lifting frame 33 for the connecting rod 22 to pass through is installed on the bottom end of the output shaft of the electric telescopic rod 32, and a vertical plate 34 is installed in the middle of the lower part of the lifting frame 33. Two connecting strips 39 are connected to the position of the lower inner wall of the U-shaped frame 5 near the U-shaped seat 31, and a rotating drum 38 is rotatably passed through the two connecting strips 39 near the bottom end, and a driving frame 36 is fixedly passed through the rotating drum 38, and one end of the first rotating shaft 30 is movably inserted into the driving frame 36 The first rotating shaft 30 and the driving frame 36 are designed to be square in shape, and one end of the first rotating shaft 30 is movably inserted into the driving frame 36, so that the reciprocating block 37 can smoothly drive the clamping strip 28 and the clamping block 29 to move, and will not hinder the driving frame 36 from driving the first rotating shaft 30 to rotate.

[0036] The implementation principle of a wire harness detection device according to an embodiment of the present invention is as follows: first, the bottom end of the positioning rod 18 is turned out from the threaded groove of the switching frame 3 to release the fixation of the clamping frame 15 on the placement frame 4; then, the clamping frame 15 is turned up from the placement frame 4 with the second rotating shaft as the axis, thereby exposing the placement seat 7 on the placement frame 4, and the wire harness is laid in two groups of placement seats 7 in sequence, and a clamping pad 17 is provided in the placement seat 7, and the two ends of the wire harness can be clamped into the clamping pad 17, so that the wire harness is pre-clamped in the placement seat 7; then, the clamping frame 15 is rotated back to the placement frame 4 with the axis of the second rotating shaft, and the two ends of the wire harness are clamped and fixed in the placement seat 7 using the clamping block 16 on the clamping frame 15, and the bottom end of the positioning rod 18 is turned outward to the placement frame 4; The end is re-turned into the threaded groove on the placement frame 4, and the pressing frame 15 is fixed on the placement frame 4. Then, the pulling sleeve 24 is used to pull the bottom end of the driving rod 23 on the L-shaped rod 6 out of the first driving groove 8. When the two card blocks 12 are pulled out by two pulling frames 11 on the switching frame 3, the placement frame 4 can be directly placed in the placement groove 10 on the switching frame 3. The pulling frame 11 is released. Under the elastic force of the second spring, the card block 12 on the pulling frame 11 is pulled into the card groove on the placement frame 4. The placement frame 4 with the wiring harness laid on the switching frame 3 is fixed, and the pulling sleeve 24 is released. Under the elastic force of the first spring 26, the bottom end of the driving rod 23 is pushed to be inserted into the first driving groove 8 again. Then, the motor 20 is started, and the connecting rod 22 drives the two screw rods 21 to rotate, and the two reciprocating blocks 37 are respectively on the two rotating screw rods 21, and move synchronously in the direction of approaching each other. When the reciprocating block 37 drives the section of the driving rod 23 to slide in the inclined section of the first driving groove 8, the driving rod 23 squeezes the groove wall of the first driving groove 8, and automatically pushes the switching frame 3 and the placement frame 4 to move as a whole on the detection frame 1, and then the wiring harness laid on the placement frame 4 is transported to the position directly below the reciprocating block 37. When the driving rod 23 slides to the junction of the inclined section and the horizontal section of the first driving groove 8, the clamping structure on the two reciprocating blocks 37 can be used to clamp the positions near the two ends of the wiring harness respectively. At this time, the motor 20 continues to drive the screw rod 21 to rotate, and the two reciprocating blocks 37 continue to move in the direction of approaching each other. The reciprocating block 37 moves to the horizontal section of the first driving groove 8 to detect the stretching capacity of the wiring harness. At the same time, the reciprocating block 37 drives the bottom end of the driving rod 23 to slide in the horizontal section of the first driving groove 8. The switching frame 3 is kept in place on the detection frame 1 to avoid the switching frame 3 moving on the detection frame 1 when the wiring harness is detected. After the detection, the clamping structure releases the wiring harness. At this time, the reciprocating block 37 drives the bottom end of the driving rod 23 to slide to the junction between the first driving groove 8 and the second driving groove 9. The clamping structure releases the wiring harness, and the motor 20 drives the screw rod 21 to rotate in the opposite direction. The two reciprocating blocks 37 move synchronously in opposite directions on the two rotating screw rods 21, and drive the bottom end of the driving rod 23 to slide in the second driving groove 9. The driving rod 23 squeezes the groove wall of the second driving groove 9.The switch frame 3 is pushed to continue to move on the detection frame 1, thereby automatically switching the next wire harness to be detected on the placement frame 4 to the bottom of the reciprocating block 37, and continuing the detection work. The operation is more labor-saving and convenient, and the detection work efficiency is greatly improved.

[0037] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire harness detection device, comprising a detection frame (1) and a U-shaped frame (5), characterized in that: A switching frame (3) is arranged in the detection frame (1), a detection structure is arranged on the U-shaped frame (5), an L-shaped rod (6) is arranged on the detection structure, a driving rod (23) is arranged at the end of the L-shaped rod (6) through a pull-out structure, a switching structure is arranged on the switching frame (3), a placement frame (4) is arranged in the switching frame (3) through a mounting structure, two groups of placement seats (7) are fixedly embedded on the left and right sides of the placement frame (4), and the multiple groups of placement seats (7) are evenly spaced, and a pressing structure is arranged on the placement frame (4); The switching structure comprises a first driving groove (8) provided on the switching frame (3) at the position of each placement seat (7), a second driving groove (9) provided on the switching frame (3) between two adjacent placement seats (7), the first driving groove (8) and the second driving groove (9) both being in an "L" shape, and the bottom end of the driving rod (23) being movably inserted into the first driving groove (8) at the front end position; The detection structure comprises two screw rods (21) which rotate and pass through the left and right side surfaces of the U-shaped frame (5), the two screw rods (21) being connected via a connecting rod (22), a motor (20) being mounted on the left side surface of the U-shaped frame (5), one end of the output shaft of the motor (20) being connected to the corresponding screw rod (21), reciprocating blocks (37) being closely arranged on both sides of the inner wall of the U-shaped frame (5), the reciprocating blocks (37) being provided with thread grooves for the screw rods (21) to pass through, a clamping structure being arranged at the bottom end of each reciprocating block (37), and a transmission structure being arranged in the middle of the U-shaped frame (5).

2. A wire harness detection device according to claim 1, characterized in that: The mounting structure comprises a placement groove (10) provided in the middle of the upper portion of the switching frame (3), the placement frame (4) being placed in the placement groove (10), a clamping block (12) movably passing through the middle of both the front and rear side surfaces of the switching frame (3), the clamping block (12) movably passing through the clamping groove provided on the placement frame (4), a pull frame (11) being respectively installed on a side surface away from each other of the two clamping blocks (12), and a second spring being connected between the pull frame (11) and the switching frame (3).

3. A wire harness detection device according to claim 1, characterized in that: The clamping structure comprises two first grooves (13) formed at the rear edge of the placement frame (4), a second rotating shaft being rotatably connected between the groove walls on both sides of each first groove (13), a connecting block (14) being fixedly sleeved on each second rotating shaft, a clamping frame (15) being installed on the top of the two connecting blocks (14), a positioning rod (18) being rotatably passed through the middle of the front edge of the clamping frame (15), the positioning rod (18) being provided with a thread, the positioning rod (18) being rotatably inserted into a thread groove formed on the placement frame (4), a clamping block (16) being installed at the position of each placement seat (7) below the clamping frame (15), and a clamping pad (17) being provided in each placement seat (7).

4. A wire harness detection device according to claim 1, characterized in that: Guide blocks (19) are installed at the front sides of the left and right side surfaces of the switching frame (3), and guide grooves (2) are opened on the left and right side surfaces of the detection frame (1). The guide blocks (19) are slidably arranged in the guide grooves (2), and the end surfaces of the guide blocks (19) and the guide grooves (2) are both in a "T" shape.

5. The wire harness detection device according to claim 1, characterized in that: The clamping structure comprises a second groove (27) formed below the reciprocating block (37), a first rotating shaft (30) being rotatably passed through both sides of the front side of the groove wall of the second groove (27), a clamping strip (28) being fixedly sleeved on the portion of the first rotating shaft (30) inserted into the second groove (27), and a clamping block (29) being installed on the end of the clamping strip (28) away from the reciprocating block (37).

6. A wire harness detection device according to claim 5, characterized in that: The transmission structure comprises a U-shaped seat (31) installed in the middle of the upper part of the U-shaped frame (5); an electric telescopic rod (32) is installed in the middle of the upper part of the U-shaped seat (31); a lifting frame (33) for the connecting rod (22) to pass through is installed at the bottom end of the output shaft of the electric telescopic rod (32); a vertical plate (34) is installed in the middle of the lower part of the lifting frame (33); and two connecting bars (39) are connected to the lower inner wall of the U-shaped frame (5) near the U-shaped seat (31). A rotating drum (38) is rotatably passed through the two connecting bars (39) near the bottom end, a driving frame (36) is fixedly passed through the rotating drum (38), one end of the first rotating shaft (30) is movably inserted into the driving frame (36), the end faces of the driving frame (36) and the first rotating shaft (30) are both square-shaped, a gear (35) is fixedly sleeved in the middle of the driving frame (36), and teeth meshing with the gear (35) are provided on the vertical plate (34).

7. The wire harness detection device according to claim 1, characterized in that: The pulling structure comprises a fixed sleeve (25) fixedly sleeved on the L-shaped rod (6); a pulling sleeve (24) is arranged directly below the fixed sleeve (25); the pulling sleeve (24) is fixedly mounted on the top end of the driving rod (23); the pulling sleeve (24) and the driving rod (23) are both movably sleeved on the L-shaped rod (6); and a first spring (26) is connected between the fixed sleeve (25) and the pulling sleeve (24).

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