Automobile wiring harness detection device

Abstract

The present invention belongs to the technical field of automobile wiring harness detection, and discloses an automobile wiring harness detection device, including a support seat, transverse guide rails are installed on both sides of the inner side surface of the top of the support seat, a stretching auxiliary component is installed in the middle of the top of the support seat, a movable seat is installed on the top of the stretching auxiliary component, a first fixed seat is installed on the left and right sides of the top of the movable seat, and a connecting rod is movably connected to the side of the first fixed seat away from the movable seat through a rotating shaft. The present invention uses the pumped oil to act on the clamping auxiliary component and the stretching auxiliary component at the same time, so that when the clamping of the two ends of the wiring harness is completed, a significant stretching process can be completed synchronously. The two processes are completed synchronously, which can effectively simplify the problem that the traditional device needs to operate the clamping device and the stretching device separately, so that it only needs to control the pumping of oil to quickly complete the significant stretching detection process, significantly shorten the test time, and improve the test efficiency.

Description

Technical Field

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

[0002] The automotive wiring harness is the main network of the automotive circuit. After the contact terminal (connector) made of copper is crimped with the wires and cables, the insulator is plastic-pressed on the outside or a metal shell is added, etc., and the wiring harness is bundled to form a component connecting the circuit. It connects various parts of the car, including the engine, brake system, lighting equipment, dashboard, door, etc., and is the neural network of the automotive electrical system. Since the automotive wiring harness is used to connect many electrical systems in the car, the stability of the automotive wiring harness is very important. For this reason, the automotive wiring harness needs to undergo many tests before leaving the factory.

[0003] During the inspection of automobile wiring harnesses, the tensile performance and electrical path capacity of the automobile are mainly inspected. When inspecting the tensile performance of automobile wiring harnesses, the two ends of the wiring harnesses are fixed, and then the tensile performance is inspected by stretching. The tensile inspection device in the prior art mainly includes a clamping device and a stretching device. During operation, the clamping device needs to be operated in sequence to clamp the wiring harness, and then the stretching device needs to be operated to stretch it. The whole process is relatively cumbersome, and the efficiency is low when batch inspecting wiring harnesses.

[0004] When testing the wire harness, it is also necessary to test its electrical path capacity. In the prior art, test probes are generally set at both ends of the wire harness and an ammeter is incorporated to test the current. This test method needs to be completed after the stretching test. It is impossible to test the electrical path capacity at the same time as the stretching test, and the overall test efficiency is low. Summary of the invention

[0005] The object of the present invention is to provide an automobile wire harness detection device to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automobile wiring harness detection device, comprising a support seat, transverse guide rails are installed on both sides of the inner side surface of the top of the support seat, a stretching auxiliary component is installed in the middle of the top of the support seat, a movable seat is installed on the top of the stretching auxiliary component, a first fixed seat is installed on the left and right sides of the top of the movable seat, a connecting rod is movably connected to the first fixed seat on one side away from the movable seat through a rotating shaft, a second fixed seat is movably connected to the second fixed seat on one side away from the first fixed seat through a rotating shaft, a guide block is installed on the top of the second fixed seat, and the guide block and the transverse guide The guide blocks are movably connected with each other, and the guide blocks are displaced left and right relative to the transverse guide rails. The top ends of the guide blocks are installed with longitudinal guide rails, and the longitudinal guide rails are perpendicular to each other. The front and rear ends of the longitudinal guide rails are installed with clamping auxiliary components. Four-way valves are installed on the relatively distant sides of the two longitudinal guide rails, and infusion tubes are installed on the front and rear ends of the four-way valves. The other end of the infusion tube is connected with the clamping auxiliary component, the bottom end of the four-way valve is connected with the stretching auxiliary component, the top end of the four-way valve is connected with the external oil pump, and a monitoring camera is fixedly installed in the middle of the top end of the movable seat.

[0007] Before use, prepare the automotive wiring harness to be tested and place it inside the left and right sets of clamps, making sure that the middle of the wiring harness corresponds to the monitoring camera. At the same time, connect the tops of the two four-way valves with the external oil pump, open the valves at the left and right ends and the bottom of the four-way valve, and turn on the external oil pump to pump high-pressure oil into the four-way valve.

[0008] As a further technical solution of the present invention, the front and rear sides of the inner cavity of the longitudinal guide rail are symmetrically and movably connected with blocks, the tops of the blocks are fixedly connected with clamping plates, and the blocks are displaced forward and backward relative to the longitudinal guide rail.

[0009] As a further technical solution of the present invention, the clamping auxiliary component includes a first temporary storage tube, one end of which is connected to the end surface of the longitudinal guide rail, and the relatively distant ends of the front and rear first temporary storage tubes are connected to the infusion tube.

[0010] As a further technical solution of the present invention, a first piston plate is movably sleeved inside the first temporary storage tube, and the first piston plate is displaced forward and backward relative to the first temporary storage tube. A first piston rod is fixedly installed at one end of the first piston plate close to the longitudinal guide rail, and an end of the first piston rod away from the first piston plate passes through one end of the first temporary storage tube and one end of the longitudinal guide rail.

[0011] As a further technical solution of the present invention, one end of the first piston rod away from the first piston plate is fixedly connected to the clamping block, and the outer side surface of the first piston rod is movably sleeved with a first limit spring, and the front and rear ends of the first limit spring are connected to one end of the first piston plate and one end of the first temporary storage tube.

[0012] When the oil enters the interior of the four-way valve, the oil can first be pumped into the interior of the two infusion tubes through the four-way valve, and at the same time enter the interior of the two sets of clamping auxiliary components. At this time, the oil then enters the interior of the first temporary storage tube and exerts pressure on the first piston plate. At this time, the first limit spring is compressed and drives the two first piston rods to be relatively close, and simultaneously pushes the two clamping blocks to be close to each other. At this time, the two clamping plates at the top are close to each other until they contact the internal wiring harness, completing the clamping process of both ends of the wiring harness.

[0013] As a further technical solution of the present invention, the stretching auxiliary component includes a second temporary storage tube, the bottom end of the second temporary storage tube is connected to the middle part of the top end of the support seat, the internal movable sleeve of the second temporary storage tube is provided with a second piston plate, the top end of the second piston plate is fixedly connected with a second piston rod, the top end of the second piston rod passes through the top end of the second temporary storage tube and is connected to the middle part of the bottom end of the movable seat.

[0014] As a further technical solution of the present invention, a second limit spring is movably sleeved on the outer side of the second piston rod, and the upper and lower ends of the second limit spring are respectively connected to the top of the inner cavity of the second temporary storage tube and the top of the second piston plate, and the left and right sides of the second temporary storage tube near the bottom are fixedly connected with hoses, and the other end of the hose is connected to the bottom end of the four-way valve.

[0015] When the wire harness is clamped, the oil can be pumped into the inside of the hose simultaneously with the infusion tube and the clamping auxiliary component. At this time, the oil can gather at the bottom end of the inner cavity of the second temporary storage tube and exert an upward force on the second piston plate. At this time, the second limit spring is compressed and drives the second piston plate and the second piston rod to move upward. At this time, the movable seat rises and the two connecting rods deflect toward the outside, that is, deflect away from the movable seat. At this time, the two guide blocks are pushed outward, which can drive the two longitudinal guide rails away from each other, cooperate with the clamping of the wire harness, and finally stretch the two ends of the wire harness. The stretched wire harness is observed by the monitoring camera to complete the stretching test.

[0016] By utilizing the coordination between the clamping auxiliary component and the stretching auxiliary component, and using the pumped oil to act on the clamping auxiliary component and the stretching auxiliary component at the same time, when the clamping of the two ends of the wire harness is completed, the significant stretching process can be completed simultaneously. The simultaneous completion of the two processes can effectively simplify the problem of traditional devices that require the clamping device and the stretching device to be operated separately, so that the significant stretching detection process can be quickly completed by only controlling the pumping of oil, significantly shortening the test time and improving the test efficiency.

[0017] As a further technical solution of the present invention, a mounting block is installed on the side of the four-way valve away from the longitudinal guide rail, an electric push rod is installed on the top of the mounting block, and a test probe is installed on the top of the electric push rod, and the two test probes are connected to an external multimeter through wires.

[0018] When the harness is clamped, the electric push rod on the top of the mounting block can be turned on to drive the test probe up until the detection end of the test probe contacts the copper wire ends at both ends of the harness. At this time, the connection is completed, and the wiring harness can be tested through the external multimeter and the test probes at both ends.

[0019] At the same time, during the stretching process, the test probe can always be in contact with the copper wire end of the wire harness and always maintain a detection state, which is used to detect the circuit path during the stretching process of the wire harness in real time and complete the path test of the wire harness.

[0020] By reusing the clamping and stretching process of the wire harness, the path test can be achieved after the clamping is completed through the clamping process and the test probe. At the same time, with the stretching process of the stretching auxiliary component, the real-time path test can be maintained during the stretching process. The whole process can be completed synchronously, and there is no need for the traditional test method to conduct a stretching test before a power-on test, so that the wire harness test can be completed quickly, which significantly improves the efficiency of batch testing.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention utilizes the cooperation between the clamping auxiliary component and the stretching auxiliary component, and utilizes the pumped oil to act on the clamping auxiliary component and the stretching auxiliary component at the same time, so that when the clamping of the two ends of the wire harness is completed, a significant stretching process can be completed simultaneously. The two processes are completed simultaneously, which can effectively simplify the problem that the traditional device needs to operate the clamping device and the stretching device separately, so that the significant stretching detection process can be quickly completed by only controlling the pumping of oil, which significantly shortens the test time and improves the test efficiency.

[0023] 2. The present invention reuses the clamping and stretching process of the wire harness. Through the clamping process and the action of the test probe, the path test can be realized after the clamping is completed. At the same time, with the stretching process of the stretching auxiliary component, the real-time path test during the stretching process can be maintained. The whole process can be completed synchronously without the need for the traditional test method to conduct a stretching test before a power-on test, so that the wire harness test can be completed quickly, which significantly improves the efficiency of batch testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the coordination between the support seat and the transverse guide rail structure of the present invention;

[0026] Figure 3 It is a separate schematic diagram of the structure of the stretching auxiliary component of the present invention;

[0027] Figure 4 It is a cross-sectional schematic diagram of the internal structure of the stretching auxiliary component of the present invention;

[0028] Figure 5 It is a schematic diagram of the coordination of the movable seat and the guide block structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the coordination of the longitudinal guide rail, the clamping auxiliary assembly and the test probe structure of the present invention;

[0030] Figure 7 It is an exploded schematic diagram of the longitudinal guide rail and the block structure of the present invention;

[0031] Figure 8 It is a cross-sectional schematic diagram of the internal structure of the clamping auxiliary component of the present invention.

[0032] In the figure: 1. support seat; 2. transverse guide rail; 3. movable seat; 4. first fixed seat; 5. second fixed seat; 6. connecting rod; 7. guide block; 8. monitoring camera; 9. longitudinal guide rail; 10. clamping block; 11. clamping plate; 12. four-way valve; 13. infusion tube; 14. clamping auxiliary component; 141. first temporary storage tube; 142. first piston plate; 143. first piston rod; 144. first limit spring; 15. stretching auxiliary component; 151. second temporary storage tube; 152. second piston plate; 153. second piston rod; 154. second limit spring; 155. hose; 16. mounting block; 17. test probe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 8 As shown, in the embodiment of the present invention, an automobile wiring harness detection device includes a support seat 1, transverse guide rails 2 are installed on both sides of the inner side surface of the top of the support seat 1, a stretching auxiliary component 15 is installed in the middle of the top of the support seat 1, a movable seat 3 is installed on the top of the stretching auxiliary component 15, a first fixed seat 4 is installed on the left and right sides of the top of the movable seat 3, a connecting rod 6 is movably connected to the first fixed seat 4 on the side away from the movable seat 3 through a rotating shaft, a second fixed seat 5 is movably connected to the side away from the first fixed seat 4 through a rotating shaft, a guide block 7 is installed on the top of the second fixed seat 5, and the guide block 7 is movably connected to the transverse guide rail 2 The guide block 7 is displaced left and right relative to the transverse guide rail 2. A longitudinal guide rail 9 is installed on the top of the guide block 7. The longitudinal guide rail 9 and the clamping auxiliary component 14 are perpendicular to each other. The front and rear ends of the longitudinal guide rail 9 are installed with the clamping auxiliary component 14. A four-way valve 12 is installed on the relatively distant side of the two longitudinal guide rails 9. An infusion tube 13 is installed on the front and rear ends of the four-way valve 12. The other end of the infusion tube 13 is connected to the clamping auxiliary component 14, the bottom end of the four-way valve 12 is connected to the stretching auxiliary component 15, the top of the four-way valve 12 is connected to the external oil pump, and a monitoring camera 8 is fixedly installed in the middle of the top of the movable seat 3.

[0035] Before use, the automotive wiring harness to be tested can be prepared and placed inside the left and right sets of clamps 11, and ensure that the middle part of the wiring harness corresponds to the monitoring camera 8. At the same time, the top ends of the two four-way valves 12 are connected to the external oil pump, and the valves at the left and right ends and the bottom end of the four-way valve 12 are opened at the same time, and the external oil pump is turned on to pump high-pressure oil into the interior of the four-way valve 12.

[0036] like Figure 1 and Figure 6 as well as Figure 7 and Figure 8As shown, the front and rear sides of the inner cavity of the longitudinal guide rail 9 are symmetrically and movably connected with a clamping block 10, and the top of the clamping block 10 is fixedly connected with a clamping plate 11. The clamping block 10 is displaced forward and backward relative to the longitudinal guide rail 9. The clamping auxiliary component 14 includes a first temporary storage tube 141, one end of the first temporary storage tube 141 is connected to the end surface of the longitudinal guide rail 9, and the ends of the front and rear first temporary storage tubes 141 that are relatively far away are connected to the infusion tube 13. The first piston plate 142 is movably sleeved inside the first temporary storage tube 141, and the first piston plate 142 is displaced forward and backward relative to the first temporary storage tube 141. The first piston rod 143 is fixedly mounted on one end of the first piston plate 142 close to the longitudinal guide rail 9, and the end of the first piston rod 143 away from the first piston plate 142 passes through one end of the first temporary storage tube 141 and one end of the longitudinal guide rail 9. The end of the first piston rod 143 away from the first piston plate 142 is fixedly connected to the block 10, and the outer side surface of the first piston rod 143 is movably sleeved with a first limit spring 144, and the front and rear ends of the first limit spring 144 are connected to one end of the first piston plate 142 and one end of the first temporary storage tube 141.

[0037] When the oil enters the interior of the four-way valve 12, it can first be pumped into the interior of the two infusion tubes 13 through the four-way valve 12, and simultaneously enter the interior of the two groups of clamping auxiliary components 14, and then the oil enters the interior of the first temporary storage tube 141, and exerts pressure on the first piston plate 142. At this time, the first limit spring 144 is compressed, and drives the two first piston rods 143 to be relatively close, and simultaneously pushes the two clamping blocks 10 to be close to each other, and then the two clamping plates 11 at the top are close to each other until they contact the internal wiring harness, completing the clamping process of both ends of the wiring harness.

[0038] like Figure 1 and Figure 3 as well as Figure 4 As shown, the stretching auxiliary component 15 includes a second temporary storage tube 151, the bottom end of the second temporary storage tube 151 is connected to the middle part of the top end of the support seat 1, the second temporary storage tube 151 is internally movably sleeved with a second piston plate 152, the top of the second piston plate 152 is fixedly connected with a second piston rod 153, the top of the second piston rod 153 passes through the top of the second temporary storage tube 151 and is connected to the middle part of the bottom end of the movable seat 3, the outer side of the second piston rod 153 is movably sleeved with a second limit spring 154, the upper and lower ends of the second limit spring 154 are respectively connected to the top of the inner cavity of the second temporary storage tube 151 and the top of the second piston plate 152, the left and right sides of the second temporary storage tube 151 near the bottom are fixedly connected with a hose 155, and the other end of the hose 155 is connected to the bottom end of the four-way valve 12.

[0039] Embodiment: When the wire harness is being clamped, the oil can be pumped into the interior of the hose 155 simultaneously with the oil being pumped into the infusion tube 13 and the clamping auxiliary component 14. At this time, the oil can be gathered at the bottom end of the inner cavity of the second temporary storage tube 151, and exert an upward force on the second piston plate 152. At this time, the second limit spring 154 is compressed, and drives the second piston plate 152 and the second piston rod 153 to move upward. At this time, the movable seat 3 rises accordingly, and the two connecting rods 6 deflect toward the outer side, that is, deflect away from the movable seat 3. At this time, the two guide blocks 7 are pushed outward, which can drive the two longitudinal guide rails 9 away from each other, cooperate with the clamping of the wire harness, and finally stretch the two ends of the wire harness. The stretched wire harness is observed by the monitoring camera 8 to complete the stretching detection.

[0040] By utilizing the coordination between the clamping auxiliary component 14 and the stretching auxiliary component 15, and utilizing the pumped oil to act on the clamping auxiliary component 14 and the stretching auxiliary component 15 at the same time, when the clamping of both ends of the wire harness is completed, the significant stretching process can be completed simultaneously. The simultaneous completion of the two processes can effectively simplify the problem of traditional devices requiring the clamping device and the stretching device to be operated separately, so that the significant stretching detection process can be quickly completed by only controlling the pumping of oil, thereby significantly shortening the test time and improving the test efficiency.

[0041] like Figure 1 and Figure 6 As shown, a mounting block 16 is installed on the side of the four-way valve 12 away from the longitudinal guide rail 9, an electric push rod is installed on the top of the mounting block 16, and a test probe 17 is installed on the top of the electric push rod. The two test probes 17 are connected to an external multimeter through wires.

[0042] Embodiment: When the clamping of the wiring harness is completed, the electric push rod at the top of the mounting block 16 can be turned on, and the test probe 17 can be driven to rise until the detection end of the test probe 17 contacts the copper wire ends at both ends of the wiring harness. At this time, the connection can be completed, and the wiring harness can be tested through the external multimeter in conjunction with the test probes 17 at both ends;

[0043] Meanwhile, during the stretching process, the test probe 17 can always be in contact with the copper wire end of the wiring harness and always maintain a detection state, so as to detect the circuit path during the stretching process of the wiring harness in real time and complete the path test of the wiring harness.

[0044] By reusing the clamping and stretching process of the wire harness, the path test can be achieved after the clamping is completed through the clamping process in conjunction with the test probe 17. At the same time, in conjunction with the stretching process of the stretching auxiliary component 15, the real-time path test during the stretching process can be maintained. The entire process can be completed synchronously, and there is no need for the traditional test method to conduct a stretching test before a power-on test, so that the wire harness test can be completed quickly, which significantly improves the efficiency of batch testing.

[0045] Working principle and usage process:

[0046] Before use, the automotive wiring harness to be tested can be prepared and placed inside the left and right sets of clamps 11, and ensure that the middle of the wiring harness corresponds to the monitoring camera 8. At the same time, the tops of the two four-way valves 12 are connected to the external oil pump, and the valves at the left and right ends and the bottom of the four-way valve 12 are opened at the same time, and the external oil pump is turned on to pump high-pressure oil into the inside of the four-way valve 12;

[0047] When the oil enters the interior of the four-way valve 12, the oil can first be pumped into the interior of the two infusion pipes 13 through the four-way valve 12, and enter the interior of the two groups of clamping auxiliary components 14 at the same time. At this time, the oil then enters the interior of the first temporary storage tube 141 and applies pressure to the first piston plate 142. At this time, the first limit spring 144 is compressed, and drives the two first piston rods 143 to be relatively close, and simultaneously pushes the two clamping blocks 10 to be close to each other. At this time, the two clamping plates 11 at the top are close to each other until they contact the internal wiring harness, completing the clamping process of the two ends of the wiring harness;

[0048] When the harness is being clamped, the oil can be pumped into the interior of the hose 155 while being pumped into the infusion tube 13 and the clamping auxiliary component 14. At this time, the oil can be gathered at the bottom end of the inner cavity of the second temporary storage tube 151 and exert an upward force on the second piston plate 152. At this time, the second limit spring 154 is compressed and drives the second piston plate 152 and the second piston rod 153 to move upward. At this time, the movable seat 3 rises accordingly, and the two connecting rods 6 deflect toward the outer side, that is, deflect in the direction away from the movable seat 3. At this time, the two guide blocks 7 are pushed outward, which can drive the two longitudinal guide rails 9 away from each other, cooperate with the clamping of the harness, and finally stretch the two ends of the harness, and observe the stretched harness through the monitoring camera 8 to complete the stretching detection;

[0049] When the clamping of the wiring harness is completed, the electric push rod at the top of the mounting block 16 can be turned on, and the test probe 17 can be driven to rise until the detection end of the test probe 17 contacts the copper wire ends at both ends of the wiring harness. At this time, the connection can be completed, and the wiring harness can be tested through the external multimeter and the test probes 17 at both ends.

[0050] Meanwhile, during the stretching process, the test probe 17 can always be in contact with the copper wire end of the wiring harness and always maintain a detection state, so as to detect the circuit path during the stretching process of the wiring harness in real time and complete the path test of the wiring harness.

[0051] 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. An automobile wiring harness detection device, comprising a support seat (1), characterized in that: Transverse guide rails (2) are installed on both sides of the inner side surface of the top of the support seat (1); a stretching auxiliary component (15) is installed in the middle of the top of the support seat (1); a movable seat (3) is installed on the top of the stretching auxiliary component (15); a first fixed seat (4) is installed on the left and right sides of the top of the movable seat (3); a side of the first fixed seat (4) away from the movable seat (3) is movably connected to a connecting rod (6) via a rotating shaft; a side of the connecting rod (6) away from the first fixed seat (4) is movably connected to a second fixed seat (5) via a rotating shaft; a guide block (7) is installed on the top of the second fixed seat (5); the guide block (7) is movably connected to the transverse guide rail (2); the guide block (7) is relatively close to the transverse guide rail (2). left and right displacement, the top end of each guide block (7) is installed with a longitudinal guide rail (9), the longitudinal guide rail (9) and the clamping auxiliary component (14) are perpendicular to each other, the front and rear ends of each longitudinal guide rail (9) are installed with a clamping auxiliary component (14), the two longitudinal guide rails (9) are installed with a four-way valve (12) on the side away from each other, the front and rear ends of each four-way valve (12) are installed with an infusion tube (13), the other end of each infusion tube (13) is connected to the clamping auxiliary component (14), the bottom end of each four-way valve (12) is connected to the stretching auxiliary component (15), the top end of each four-way valve (12) is connected to an external oil pump, and a monitoring camera (8) is fixedly installed in the middle of the top end of each movable seat (3); The stretching auxiliary component (15) comprises a second temporary storage tube (151), the bottom end of the second temporary storage tube (151) is connected to the middle part of the top end of the support seat (1), the second temporary storage tube (151) is movably sleeved with a second piston plate (152) inside, the top end of the second piston plate (152) is fixedly connected to a second piston rod (153), the top end of the second piston rod (153) passes through the top end of the second temporary storage tube (151) and is connected to the middle part of the bottom end of the movable seat (3); A second limit spring (154) is movably sleeved on the outer side of the second piston rod (153); the upper and lower ends of the second limit spring (154) are respectively connected to the top of the inner cavity of the second temporary storage tube (151) and the top of the second piston plate (152); the left and right sides of the second temporary storage tube (151) near the bottom are fixedly connected with a hose (155); the other end of the hose (155) is connected to the bottom end of the four-way valve (12).

2. The automotive wiring harness detection device according to claim 1, characterized in that: The front and rear sides of the inner cavity of the longitudinal guide rail (9) are symmetrically and movably connected with clamping blocks (10), the top ends of the clamping blocks (10) are fixedly connected with clamping plates (11), and the clamping blocks (10) are displaced forward and backward relative to the longitudinal guide rail (9).

3. The automotive wiring harness detection device according to claim 2, characterized in that: The clamping auxiliary component (14) comprises a first temporary storage tube (141), one end of the first temporary storage tube (141) is connected to the end surface of the longitudinal guide rail (9), and the relatively distant ends of the front and rear first temporary storage tubes (141) are connected to the infusion tube (13).

4. The automotive wiring harness detection device according to claim 3, characterized in that: A first piston plate (142) is movably sleeved inside the first temporary storage tube (141). The first piston plate (142) is displaced forward and backward relative to the first temporary storage tube (141). A first piston rod (143) is fixedly mounted on one end of the first piston plate (142) close to the longitudinal guide rail (9). An end of the first piston rod (143) away from the first piston plate (142) passes through one end of the first temporary storage tube (141) and one end of the longitudinal guide rail (9).

5. The automotive wiring harness detection device according to claim 4, characterized in that: One end of the first piston rod (143) away from the first piston plate (142) is fixedly connected to the clamping block (10); a first limit spring (144) is movably sleeved on the outer side surface of the first piston rod (143); front and rear ends of the first limit spring (144) are connected to one end of the first piston plate (142) and one end of the first temporary storage tube (141).

6. The automotive wiring harness detection device according to claim 1, characterized in that: A mounting block (16) is installed on a side of the four-way valve (12) away from the longitudinal guide rail (9), an electric push rod is installed on the top of the mounting block (16), and a test probe (17) is installed on the top of the electric push rod, and the two test probes (17) are connected to an external multimeter via wires.

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