A wiring harness testing tool

Abstract

The present invention discloses a wire harness testing tool, which relates to the field of wire harness testing tool, and comprises a base, wherein a stand is fixedly mounted on the upper surface of the base, and a rotatable clamping assembly is mounted on the upper surface of the base and one end of the stand for fixing the two ends of a main line circuit, and two parallel movable test frames are arranged on the surface of the base. The wire harness testing tool described in the present invention, by arranging a rotatable mechanical clamp, a test frame and a test port, the rotation of the mechanical clamp generates centrifugal force, which will make the hanging branch line become nearly horizontal, and the two test frames move toward each other, so that the branch line is located above the corresponding detection platform, and as the speed of the mechanical clamp gradually slows down and stops, the branch line will fall at the corresponding test port position, and the staff at this time can more quickly and accurately insert the corresponding plug into the position of the test port, thereby ensuring the accuracy and efficiency of the detection.

Description

Technical Field

[0001] The invention relates to the field of wire harness testing tooling, and in particular to a wire harness testing tooling. Background Art

[0002] Electronic control harness, also known as electronic control wiring harness or electronic wiring harness, is an indispensable component of electronic and electrical equipment. It is used to establish a communication bridge between two or more isolated electronic circuits to enable current to flow, thereby realizing the functions of various electronic components. In vehicles, electronic control harness has a wide range of applications, such as connecting fault diagnosis instrument (OBD) to detect the operating status and maintenance needs of the vehicle, providing power and control signals for equipment such as lights, wipers, air conditioners, etc., controlling door switches, window lifts, door locks and other equipment, and connecting airbags, seat belt pretensioners and other safety equipment.

[0003] In order to ensure the quality and performance of the electric control harness, multiple tests need to be carried out after the harness is produced, including conductivity test, insulation test and voltage resistance test. Usually, the staff are required to place the harness on the detection platform, insert the plug corresponding to each wire into the jack, and test it by running the test program. The more branch wires there are in the harness, the more cumbersome the test operation is, and the work efficiency is relatively low. At the same time, the risk of the staff inserting the wrong plug position is also greater, thereby reducing the yield of the harness. Summary of the invention

[0004] The main purpose of the present invention is to provide a wire harness testing tool, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a wire harness testing tool, including a base, a stand fixedly installed on the upper surface of the base, a rotatable clamping assembly is installed on the upper surface of the base and one end of the stand for fixing the two ends of the main line circuit, two parallel movable test frames are arranged on the surface of the base, a plurality of detection platforms are arranged on the inner side of the two test frames, the detection platforms are linearly arranged on the inner side of the test frames, a test port is arranged on the surface of the detection platform, and an operation port is opened on the surface of the test frame.

[0006] A first turntable is movably mounted on the surface of the base, a first motor is fixedly mounted inside the base, an output shaft of the first motor is fixed on the surface of the first turntable, and the clamping assembly is fixed at the center of the first turntable.

[0007] A bearing is fixedly installed at the end of the stand, a second turntable is fixedly installed on the surface of the bearing, the clamping assembly is fixed at the center of the second turntable, a second motor is fixedly installed on the surface of the stand via a mounting frame, gears are fixedly sleeved on the surface of the output shaft of the second motor and the surface of the second turntable, and the two gears are meshed with each other.

[0008] The clamping assembly includes a controller, which is fixedly installed on opposite sides of the first turntable and the second turntable. A proximity sensor is provided on the surface of the controller, and a mechanical clamp is installed on the surface of the controller. The proximity sensor transmits a signal to the controller, and the controller controls the action of the mechanical clamp.

[0009] Driving wheels are fixedly installed on both sides of the test frame, two slide rails are fixedly installed on the surface of the first turntable, and the two slide rails are respectively located on both sides of the first turntable, and the driving wheel is movably arranged inside the slide rails, and a guide wheel is fixedly installed on the bottom of the test frame, and a guide groove is opened on the surface of the first turntable, and the guide wheel is located inside the guide groove.

[0010] A positioning component is disposed on the surface of the detection platform to define the position of the branch line.

[0011] The positioning assembly includes a U-shaped frame, a groove is provided on the surface of the detection platform near the wire harness clamping position, the U-shaped frame is movably installed inside the groove, a guide rod is fixedly installed on the surface of the U-shaped frame, and a driving assembly is installed inside the detection platform for moving the U-shaped frame.

[0012] The driving assembly includes a connecting spring, the guide rod movably passes through the detection platform and extends into the interior thereof, a wedge block is installed inside the detection platform, the end of the wedge block with a higher inclined surface is close to the clamping position of the wire harness, one end of the guide rod rests on the inclined surface of the wedge block, one end of the connecting spring is fixed to the surface of the wedge block, and the other end of the connecting spring is fixed to the interior of the detection platform.

[0013] A locking assembly is installed inside the detection platform to fix the position of the wedge block.

[0014] The locking assembly includes a movable column, a slot is provided on the surface of the wedge block, one end of the movable column is stuck in the slot, a magnetic block is fixedly installed at the lower end of the movable column, an electromagnet is installed at a linear position corresponding to the magnetic block inside the detection platform, a support spring is installed at the lower end of the movable column, the other end of the support spring is fixed inside the detection platform, and the electromagnet and the magnetic block are both located on the inner side of the support spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present invention, by providing a rotatable mechanical clamp, a test frame and a test port, the rotation of the mechanical clamp generates centrifugal force, which will cause the hanging branch line to become a nearly horizontal state. The two test frames move toward each other, so that the branch line is located above the corresponding detection platform. As the speed of the mechanical clamp gradually slows down and stops, the branch line will fall at the corresponding test port position. At this time, the staff can insert the corresponding plug into the test port position more quickly and accurately, thereby ensuring the accuracy and efficiency of the detection.

[0017] In the present invention, a proximity sensor, a mechanical clamp and a controller are set up, and the wire bundle is placed inside the mechanical clamp. The proximity sensor detects the approach signal and sends a signal to the controller. The controller controls the mechanical clamp to close, thereby fixing the wire bundle. When taking, when the staff approaches the mechanical clamp, the proximity sensor receives the signal and the mechanical clamp is opened through the controller. The whole process is very simple to operate, which further improves the efficiency of detection.

[0018] In the present invention, a U-shaped frame is provided. Since the object itself has inertia, when the wire bundle stops rotating, the wire bundle branch line will deviate from the position when it is relatively stationary with the detection platform during rotation in order to ensure the initial motion state. The U-shaped frame fixes the position of the wire bundle branch line to ensure that the wire bundle branch line corresponds to the test port as much as possible when the wire bundle stops rotating, and the staff can quickly and accurately insert the plug into the correct test port.

[0019] In the present invention, by arranging a wedge block, a guide rod and a U-shaped frame, when the detection platform rotates with the test frame, the wedge block will still be away from the beam line due to the action of centrifugal force, and the inclined surface on the top of the wedge block will squeeze the guide rod. The guide rod moves upward, so that the U-shaped frame can clamp the branch line of the beam line. In this process, no additional power source is required, and the structure is simple and convenient.

[0020] In the present invention, by arranging a movable column, a card slot, a magnetic block and an electromagnet, the movable column is stuck in the inside of the card slot to ensure that when the test frame approaches, the U-shaped frame will not move upward, thereby reducing the impact on the rotation of the branch line; when the test frame moves close to the bundle of wires, the electromagnet is energized to make it magnetic, so that the magnetic block can be adsorbed and moved downward, and the magnetic block drives the movable column away from the card slot. This process can unlock all the wedge blocks at the same time, making it more convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a wiring harness testing tool of the present invention;

[0022] Figure 2 It is a schematic diagram of the gear position structure of a wiring harness testing tool of the present invention;

[0023] Figure 3 It is a schematic diagram of the partial position structure of a clamping assembly of a wiring harness testing tool of the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of a first motor position of a wiring harness testing tool of the present invention;

[0025] Figure 5 It is a partial structural schematic diagram of the driving wheel position of a wiring harness testing tool of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the test port position of a wiring harness test tool of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the groove position of a wiring harness testing tool of the present invention;

[0028] Figure 8 It is a partial cross-sectional structural schematic diagram of the support spring position of a wiring harness testing tool of the present invention.

[0029] In the figure: 1. base; 2. stand; 3. test frame; 4. detection platform; 5. test port; 6. operation port; 7. first turntable; 8. first motor; 9. bearing; 10. second turntable; 11. second motor; 12. gear; 13. controller; 14. proximity sensor; 15. mechanical gripper; 16. driving wheel; 17. slide rail; 18. guide wheel; 19. guide groove; 20. U-shaped frame; 21. groove; 22. guide rod; 23. connecting spring; 24. wedge block; 25. movable column; 26. slot; 27. magnetic block; 28. electromagnet; 29. ​​support spring. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figure 1-8 As shown, a wiring harness testing tool comprises a base 1, which is placed on the ground, a stand 2 is fixedly installed on the upper surface of the base 1, and the stand 2 is arranged in a hook shape. A rotatable clamping assembly is installed on the upper surface of the base 1 and one end of the stand 2 for fixing the two ends of the main line circuit. Two parallel movable test frames 3 are arranged on the surface of the base 1, and the test frames 3 are arranged in a semicircular shape, and a test circuit is arranged inside them. A plurality of detection platforms 4 are arranged on the inner sides of the two test frames 3, and each detection platform 4 detects a different branch line. The detection platforms 4 are linearly arranged on the inner sides of the test frames 3, and a test port 5 is arranged on the surface of the detection platform 4. An operating port 6 is opened on the surface of the test frame 3, and a staff member inserts a plug into the test port 5 through the operating port 6 for internal detection.

[0032] When in use, the staff first fixes the wire bundle through the clamping assembly, mainly fixing the two ends of the main line of the wire bundle on the clamping assembly. At this time, the specific direction of the wire bundle needs to face the staff, and then the two clamping assemblies rotate. Since centrifugal force will be generated during the rotation, the hanging branch line will become nearly horizontal. At this time, the two test frames 3 move toward each other, so that the branch line is located above the corresponding detection platform 4. Then the speed of the clamping assembly gradually slows down and stops, and the branch line will fall at the corresponding test port 5. At this time, the staff can insert the corresponding plug into the test port 5 more quickly and accurately, thereby ensuring the accuracy and efficiency of the detection.

[0033] A first turntable 7 is movably mounted on the surface of the base 1, a first motor 8 is fixedly mounted inside the base 1, an output shaft of the first motor 8 is fixed on the surface of the first turntable 7, a clamping assembly is fixed at the center position of the first turntable 7, and when the first motor 8 is started, the first turntable 7 can be rotated, thereby indirectly driving the clamping assembly to rotate.

[0034] A bearing 9 is fixedly installed on the end of the stand 2, and a second turntable 10 is fixedly installed on the surface of the bearing 9. The bearing 9 enables the second turntable 10 to rotate stably. The clamping assembly is fixed at the center position of the second turntable 10. The rotation of the second turntable 10 drives the clamping assembly to rotate. A second motor 11 is fixedly installed on the surface of the stand 2 through a mounting frame. Gears 12 are fixedly sleeved on the surface of the output shaft of the second motor 11 and the surface of the second turntable 10, and the two gears 12 are meshed with each other.

[0035] When the second motor 11 is started, the second turntable 10 can be rotated due to the meshing of the two gears 12. It should be noted that the rotation speeds of the first turntable 7 and the second turntable 10 must be exactly the same, so that the rotation speeds of the two clamping components are also the same, ensuring that the wire bundle will not be misaligned during rotation, thereby protecting the wire bundle.

[0036] The clamping assembly includes a controller 13, a control chip is disposed inside the controller 13, the controller 13 is fixedly installed on the opposite sides of the first turntable 7 and the second turntable 10, a proximity sensor 14 is disposed on the surface of the controller 13, a mechanical gripper 15 is installed on the surface of the controller 13, the mechanical gripper 15 itself has a power source, the proximity sensor 14 transmits a signal to the controller 13, the controller 13 processes the received signal, and the controller 13 controls the action of the mechanical gripper 15.

[0037] When the staff places the wire bundle near the mechanical gripper 15, the proximity sensor 14 detects the approach signal and sends a signal to the controller 13. The controller 13 controls the mechanical gripper 15 to close, thereby fixing the wire bundle. The whole process is very simple to operate, which further improves the efficiency of detection. When the wire bundle needs to be taken, the staff will approach the mechanical gripper 15, the proximity sensor 14 receives the signal, and the mechanical gripper 15 is opened through the controller 13.

[0038] Drive wheels 16 are fixedly installed on both sides of the test frame 3, and the drive wheels 16 themselves have a power source. Two slide rails 17 are fixedly installed on the surface of the first turntable 7, and the slide rails 17 can rotate with the first turntable 7. The two slide rails 17 are respectively located on both sides of the first turntable 7. The drive wheel 16 is movably arranged inside the slide rails 17. A guide wheel 18 is fixedly installed on the bottom of the test frame 3. In the present embodiment, there are two guide wheels 18, which are respectively located at symmetrical positions of the test frame 3. A guide groove 19 is opened on the surface of the first turntable 7, and the guide wheel 18 is located inside the guide groove 19.

[0039] The guide wheel 18 moves inside the guide groove 19, which can ensure the stable and smooth movement of the test frame 3 and prevent the test frame 3 from being offset during the movement. In the initial state, the two test frames 3 are far apart, which is convenient for the staff to place the wire bundle inside the mechanical clamp 15. After rotation, the power source of the driving wheel 16 itself makes the two test frames 3 approach each other, so that the branch line of the wire bundle falls on the surface of the detection platform 4.

[0040] The surface of the detection platform 4 is provided with a positioning component for defining the position of the branch line.

[0041] Since the object itself has inertia, when the beam ends its rotation, the beam branch line will deviate from its position during rotation in order to maintain its initial state of motion. At this time, the positioning component can be used to fix the position of the beam branch line during the beam rotation to ensure that when the beam stops rotating, it is still in a relatively static position with respect to the detection platform 4 during rotation, ensuring that the beam branch line corresponds to the test port 5 as much as possible, and the staff can quickly and accurately insert the plug into the correct test port 5.

[0042] The positioning assembly includes a U-shaped frame 20, and a groove 21 is provided on the surface of the detection platform 4 near the wire harness clamping position. The U-shaped frame 20 is movably installed inside the groove 21. In the initial state, the U-shaped frame 20 is completely located inside the groove 21 to ensure that the wire harness will not be affected by the U-shaped frame 20 during rotation. A guide rod 22 is fixedly installed on the surface of the U-shaped frame 20, so that the U-shaped frame 20 moves along the axial direction of the guide rod 22. A driving assembly is installed inside the detection platform 4 to move the U-shaped frame 20.

[0043] When the branch line of the wire harness is rotated and fully erected, the drive assembly is started, causing the U-shaped frame 20 to move axially along the guide rod 22, and the branch line of the wire harness is clamped in the middle position of the U-shaped frame 20. After the final inspection is completed, the drive assembly moves the U-shaped frame 20 downward without affecting the inspection of the next wire harness.

[0044] The driving assembly includes a connecting spring 23, a guide rod 22 that movably passes through the detection platform 4 and extends into the interior thereof, a protrusion is arranged on the surface of the guide rod 22 to prevent the U-shaped frame 20 from falling off, a wedge block 24 is installed inside the detection platform 4, and the higher end of the inclined surface of the wedge block 24 is close to the clamping position of the wire bundle, one end of the guide rod 22 rests on the inclined surface of the wedge block 24, one end of the connecting spring 23 is fixed on the surface of the wedge block 24, and the other end of the connecting spring 23 is fixed to the interior of the detection platform 4.

[0045] When the detection platform 4 rotates with the test frame 3, the wedge block 24 will still be away from the wire harness due to the centrifugal force. At this time, the connecting spring 23 is in a stretched state. When the wedge block 24 is away from the wire harness, the inclined surface on its top will squeeze the guide rod 22. The guide rod 22 moves upward, which enables the U-shaped frame 20 to clamp the branch line of the wire harness. In this process, no additional power source is required, and the structure is simple and convenient.

[0046] A locking assembly is installed inside the detection platform 4 to fix the position of the wedge block 24 .

[0047] Since the detection platform 4 rotates simultaneously with the first turntable 7, the U-shaped frame 20 will also rise when the beam line rotates and rises. At this time, when the U-shaped frame 20 moves closer to the beam line as the test frame 3 moves, it may affect the rotation of the beam line branch line. Therefore, the position of the wedge block 24 is first locked through the locking assembly to ensure that the U-shaped frame 20 will not move upward during the approach process.

[0048] The locking assembly includes a movable column 25, a slot 26 is provided on the surface of the wedge block 24, one end of the movable column 25 is stuck in the slot 26, a magnetic block 27 is fixedly installed on the lower end of the movable column 25, an electromagnet 28 is installed at a linear position corresponding to the magnetic block 27 inside the detection platform 4, a support spring 29 is installed on the lower end of the movable column 25, the other end of the support spring 29 is fixed inside the detection platform 4, and the electromagnet 28 and the magnetic block 27 are both located on the inner side of the support spring 29.

[0049] When the test frame 3 moves close to the wire harness, the electromagnet 28 is energized to make it magnetic, and the magnetic block 27 can be attracted and moved downward, and the magnetic block 27 drives the movable column 25 away from the slot 26. At this time, the support spring 29 is in a compressed state. When the electromagnet 28 is not magnetic, the rebound force of the support spring 29 can make the movable column 25 stuck inside the slot 26. This process can unlock and lock all the wedge blocks 24 at the same time, which is more convenient and quick to use.

[0050] It should be noted that the present invention is a wire harness testing tool. When in use, the staff places the wire harness inside the mechanical clamp 15. The proximity sensor 14 detects the proximity signal and sends a signal to the controller 13. The controller 13 controls the mechanical clamp 15 to close, thereby fixing the wire harness. The first motor 8 is started to rotate the first turntable 7. At the same time, the second motor 11 is started. Due to the engagement of the two gears 12, the second turntable 10 can be rotated. The rotation speeds of the first turntable 7 and the second turntable 10 are exactly the same. Since centrifugal force is generated during the rotation, the hanging branch line will become nearly horizontal. The power source of the driving wheel 16 itself makes the two test frames 3 approach each other, so that the branch line is located above the corresponding detection platform 4. Then the wedge block 24 will still be away from the wire harness due to the centrifugal force. At this time The connecting spring 23 is in a stretched state. When the wedge block 24 is away from the wire harness, the inclined surface on its top will squeeze the guide rod 22. The guide rod 22 moves upward, which can enable the U-shaped frame 20 to clamp the branch line of the wire harness, ensuring that when the wire harness stops rotating, it is still in a relatively static position with the detection platform 4 during rotation, ensuring that the branch line of the wire harness corresponds to the test port 5 as much as possible, and the staff can quickly and accurately insert the plug into the correct test port 5. After the inspection is completed, the electromagnet 28 is energized to make it magnetic, which can attract the magnetic block 27 and move it downward. The magnetic block 27 drives the movable column 25 away from the slot 26. At this time, the support spring 29 is in a compressed state. When the electromagnet 28 is not magnetic, the rebound force of the support spring 29 can make the movable column 25 stuck in the inside of the slot 26. This process can unlock and lock all the wedge blocks 24 at the same time.

[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wiring harness testing tool, comprising a base (1), characterized in that: A stand (2) is fixedly mounted on the upper surface of the base (1); a rotatable clamping assembly is mounted on the upper surface of the base (1) and one end of the stand (2) for fixing the two ends of the main line circuit; two parallel movable test racks (3) are arranged on the surface of the base (1); a plurality of detection platforms (4) are arranged on the inner sides of the two test racks (3); the detection platforms (4) are linearly arranged on the inner sides of the test racks (3); a test port (5) is arranged on the surface of the detection platform (4); and an operation port (6) is opened on the surface of the test rack (3); The surface of the detection platform (4) is provided with a positioning component for defining the position of the branch line, the positioning component comprising a U-shaped frame (20), a groove (21) is provided on the surface of the detection platform (4) near the wire harness clamping position, the U-shaped frame (20) is movably mounted inside the groove (21), and a guide rod (22) is fixedly mounted on the surface of the U-shaped frame (20); A driving assembly is installed inside the detection platform (4) for moving the U-shaped frame (20), the driving assembly comprising a connecting spring (23), the guide rod (22) movably passes through the detection platform (4) and extends into the interior thereof, a wedge block (24) is installed inside the detection platform (4), the higher end of the inclined surface of the wedge block (24) is close to the clamping position of the wire harness, one end of the guide rod (22) abuts against the inclined surface of the wedge block (24), one end of the connecting spring (23) is fixed to the surface of the wedge block (24), and the other end of the connecting spring (23) is fixed inside the detection platform (4); A locking assembly is installed inside the detection platform (4) for fixing the position of the wedge block (24), the locking assembly comprising a movable column (25), a slot (26) is provided on the surface of the wedge block (24), one end of the movable column (25) is locked inside the slot (26), a magnetic block (27) is fixedly installed at the lower end of the movable column (25), an electromagnet (28) is installed at a linear position corresponding to the magnetic block (27) inside the detection platform (4), a support spring (29) is installed at the lower end of the movable column (25), the other end of the support spring (29) is fixed inside the detection platform (4), and the electromagnet (28) and the magnetic block (27) are both located on the inner side of the support spring (29).

2. A wiring harness testing tool according to claim 1, characterized in that: A first rotating disk (7) is movably mounted on the surface of the base (1), a first motor (8) is fixedly mounted inside the base (1), an output shaft of the first motor (8) is fixed on the surface of the first rotating disk (7), and the clamping assembly is fixed at the center of the first rotating disk (7).

3. The wire harness testing tool according to claim 1, characterized in that: A bearing (9) is fixedly mounted on the end of the stand (2), a second turntable (10) is fixedly mounted on the surface of the bearing (9), the clamping assembly is fixed at the center of the second turntable (10), a second motor (11) is fixedly mounted on the surface of the stand (2) via a mounting frame, a gear (12) is fixedly sleeved on the surface of the output shaft of the second motor (11) and the surface of the second turntable (10), and the two gears (12) are meshed with each other.

4. A wiring harness testing tool according to claim 2 or 3, characterized in that: The clamping assembly comprises a controller (13), wherein the controller (13) is fixedly mounted on opposite sides of the first turntable (7) and the second turntable (10), a proximity sensor (14) is arranged on the surface of the controller (13), a mechanical gripper (15) is mounted on the surface of the controller (13), the proximity sensor (14) transmits a signal to the controller (13), and the controller (13) controls the action of the mechanical gripper (15).

5. The wire harness testing tool according to claim 2, characterized in that: Drive wheels (16) are fixedly mounted on both sides of the test frame (3); two slide rails (17) are fixedly mounted on the surface of the first turntable (7); the two slide rails (17) are respectively located on both sides of the first turntable (7); the drive wheel (16) is movably arranged inside the slide rails (17); a guide wheel (18) is fixedly mounted on the bottom of the test frame (3); a guide groove (19) is provided on the surface of the first turntable (7); and the guide wheel (18) is located inside the guide groove (19).

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