Automobile wire harness stretching test platform

Abstract

The utility model discloses an automobile wire harness tensile test platform, which comprises a test machine body, and a fixing device, a mobile test device and a rotating device which are arranged on the test machine body, the top of the test machine body is provided with the fixing device, and the bottom of the test machine body is provided with the mobile test device and the rotating device. A first fixing clamp is arranged on the fixing device, a second fixing clamp is arranged on the rotating device, the first fixing clamp and the second fixing clamp are used for fixing the automobile wire harness end, and when the automobile wire harness end is fixed, the movable testing device and the fixing device move to adjust and determine the stretching testing angle, and then the automobile wire harness end is fixed. And the stretching test of the automobile wire harness is realized through rotation of the rotating device. The fixing device comprises a supporting plate, a first linear motor, a first rail and a first fixing clamp, the first linear motor is arranged on the side face of the supporting plate, and the first rail is arranged on the supporting plate. The device has the characteristics of high efficiency and intelligent test.

Description

Technical Field

[0001] This utility model relates to the field of wire harness tensile testing technology, specifically to an automotive wire harness tensile testing platform. Background Technology

[0002] Tensile testing of automotive wiring harness terminals, as a crucial means of evaluating their mechanical properties, plays a vital role in ensuring the stability and durability of terminals under various operating environments. The principle of automotive wiring harness terminal pull-out force testing is to apply gradually increasing tensile force to the terminal using a tensile testing machine until the terminal detaches from the wiring harness, thereby measuring the strength of the connection between the terminal and the wiring harness and the maximum force required for pull-out. Currently, existing technologies for automotive wiring harness tensile testing mostly apply tensile force to both ends of the wiring harness in a corresponding direction. However, in real-world scenarios, automotive wiring harnesses often have various angles, making this type of testing unsuitable for practical needs. Even when testing wiring harnesses at different angles, manual adjustments to the angle and harness length are required, resulting in low efficiency and significant manpower costs. Therefore, designing a highly efficient and intelligent automotive wiring harness tensile testing platform is essential. Utility Model Content

[0003] The purpose of this invention is to provide an automotive wiring harness tensile testing platform to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automotive wiring harness tensile testing platform, comprising: a testing body, a fixing device, a moving testing device, and a rotating device disposed on the testing body. The fixing device is disposed on the top of the testing body, and the moving testing device and the rotating device are disposed on the bottom of the testing body. A fixing clamp is disposed on the fixing device, and a fixing clamp is disposed on the rotating device. The fixing clamp and the fixing clamp are used to fix the end of the automotive wiring harness. After the end of the automotive wiring harness is fixed, the angle of the tensile test is determined by moving and adjusting the moving testing device and the fixing device, and the tensile test of the automotive wiring harness is realized by rotating the rotating device.

[0005] The aforementioned automotive wiring harness tensile testing platform is controlled by an analysis and management center. This center includes a data input module, a data receiving module, a calculation and analysis module, and a drive control module. The data input module processes the input of tensile test angle data. A push-pull force gauge is installed in the moving test device. The data receiving module receives the data detected by the push-pull force gauge. A linear motor is installed in the fixed device, a linear motor is installed in the moving test device, and a drive motor is installed in the rotating device. The calculation and analysis module performs data analysis and management, and the drive control module controls the linear motors.

[0006] The fixing device includes a support plate, a linear motor, a track, and a fixing clamp. The linear motor is mounted on the top of the support plate, the track is mounted on the support plate, and the fixing clamp is slidably mounted on the track. When performing a tensile test on an automotive wiring harness, the linear motor controls and drives the fixing clamp to slide on the track, thereby adjusting the angle of the automotive wiring harness tensile test.

[0007] The mobile testing device includes an upper base plate, a second linear motor, a second track, a moving plate, a pressure sensor, a pressure sensor ring, and a first groove, all mounted on the side of the upper base plate. The second track is mounted on the upper base plate, and the moving plate is slidably mounted on the second track. A push-pull force gauge (model SGSF-300) is mounted on the side of the moving plate and has a fixing ring. The second track has a first groove penetrating the upper base plate. During tensile testing, one end of the automotive wiring harness passes through the fixing ring and the first groove on the push-pull force gauge and is then fixed to a second clamp. The second linear motor controls the movement of the moving plate, thereby moving the push-pull force gauge. After both ends of the automotive wiring harness are fixed to the first and second clamps respectively, the distance between the first clamp and the moving plate is further adjusted according to the angle input by the analysis and management center, so that the angle between the automotive wiring harness at one clamp and the track matches the input angle, thus achieving the purpose of adjusting and controlling the testing angle of the automotive wiring harness.

[0008] The rotating device includes a lower base plate, a third drive motor, a support rod, a rotating shaft, a gear, a second fixing clamp, and a second groove. The lower base plate is located at the bottom of the support plate, and the support rod is located in the lower middle part of the support plate. A rotating shaft is rotatably mounted on the side of the support rod. The third drive motor is located on the side of the support rod. A gear is mounted on the rotating shaft, and a second fixing clamp is mounted on the gear. A second groove is provided on the gear teeth. The second fixing clamp is used to fix one end of the automotive wiring harness through two elastic clips. The second groove on the gear teeth is used to gather the automotive wiring harness. During tensile testing, after the two ends of the automotive wiring harness are fixed to the first and second fixing clamps respectively, the third drive motor drives the gear to rotate, thereby gathering the redundant automotive wiring harness and generating tensile force on the automotive wiring harness, generating thrust on the push-pull force gauge. Then, the data on the thrust generated on the push-pull force gauge when the automotive wiring harness breaks is obtained through analysis and management center, and the tensile force data in the corresponding angular direction that causes the automotive wiring harness to break is obtained through analysis.

[0009] After fixing the corresponding number of automotive wiring harnesses to the tensile testing platform, the angle to be tested for each automotive wiring harness is input through the data input module. The data receiving module receives the input tensile testing angle. Subsequently, the drive control module drives the fixed clamp and the moving plate to move via linear motor one and linear motor two, respectively, so that the angle between the automotive wiring harness fixed at one end of the fixed clamp and the length direction of the track one is the angle of the fixed clamp. ;

[0010] The calculation and analysis module applies formulas. The distance between the fixing clamp and the upper base plate is... The distance between the movable plate and the supporting plate is .

[0011] After the tensile test angle is adjusted, when the three drive gears of the drive motor are rotated by the drive control module, a thrust will be generated on the push-pull force gauge, and the data detected by the push-pull force gauge will be received by the data receiving module.

[0012] As the drive motor's three drive gears rotate until the end of the automotive wiring harness at a fixed clamp is severed, the data receiving module receives data detected by the push-pull force gauge. Then, extract the maximum thrust received by the push-pull force gauge. , where i is the time point at which the push-pull force gauge detects the force;

[0013] Based on the detected data The calculation and analysis module calculates and analyzes the tensile force at the corresponding angle when a section of the automotive wiring harness is broken at the fixing clamp. , ,in β is the angle formed by the automotive wiring harness at the moving plate and the top plane of the upper base plate.

[0014] The beneficial effects of this utility model are: the number of automotive wiring harnesses to be tested can be input in the analysis and management center according to the number of tracks, and then the corresponding fixed clamp and moving plate can be moved by linear motor one and linear motor two to automatically reach the corresponding input angle. This realizes the purpose of simultaneously and automatically adjusting the angle of multiple automotive wiring harnesses according to the input angle, effectively improving the efficiency and convenience of automotive wiring harness tensile testing, avoiding errors caused by manual adjustment and control, and saving a lot of human resources. Attached Figure Description

[0015] Figure 1 This utility model proposes a structural schematic diagram of an automotive wiring harness tensile testing platform;

[0016] Figure 2 for Figure 1 Enlarged view of point B;

[0017] Figure 3 for Figure 1 Enlarged view of point A;

[0018] Figure 4 Angle Schematic diagram;

[0019] Figure 5 This utility model proposes an analysis and management center module diagram of an automotive wiring harness tensile testing platform;

[0020] Figure reference numerals: 0 Test body, 1 Fixing device, 101 Support plate, 102 Linear motor I, 103 Track I, 104 Fixing clamp I, 2 Moving test device, 201 Upper base plate, 202 Linear motor II, 203 Track II, 204 Moving plate, 205 Push-pull force gauge, 206 Fixing ring, 207 Groove I, 3 Rotating device, 301 Lower base plate, 302 Drive motor III, 303 Support rod, 304 Rotating shaft, 305 Gear, 306 Fixing clamp II, 307 Groove II, 4 Automotive wiring harness. Detailed Implementation

[0021] Please refer to Figure 1A tensile testing platform for automotive wiring harnesses includes: a testing body 0, a fixing device 1, a moving testing device 2, and a rotating device 3 mounted on the testing body 0. The fixing device 1 is mounted on the top of the testing body 0, and the moving testing device 2 and the rotating device 3 are mounted on the bottom of the testing body 0. A fixing clamp 104 is mounted on the fixing device 1, and a fixing clamp 306 is mounted on the rotating device 3. The fixing clamp 104 and the fixing clamp 306 are used to fix the end of the automotive wiring harness. When the end of the automotive wiring harness is fixed, one end of the automotive wiring harness is fixed by the fixing device 1, and the other end of the automotive wiring harness is moved and adjusted by the moving testing device 2. After determining the angle for the tensile test, the tensile test of the automotive wiring harness is achieved by rotating the rotating device 3.

[0022] The aforementioned automotive wiring harness tensile testing platform is controlled by an analysis and management center. This center includes a data input module, a data receiving module, a calculation and analysis module, and a drive control module. The data input module processes the input of tensile test angle data. The moving test device 2 is equipped with a push-pull force gauge 205. The data receiving module receives the data detected by the push-pull force gauge 205. The fixed device 1 is equipped with a linear motor 102, the moving test device 2 is equipped with a linear motor 202, and the rotating device 3 is equipped with a drive motor 302. The calculation and analysis module performs data information calculation, analysis, and management. The drive control module controls the linear motors 102, 202, and 302.

[0023] The fixing device 1 includes a support plate 101, a linear motor 102, a track 103, and a fixing clamp 104. The linear motor 102 is provided on the top of the support plate 101, the track 103 is provided on the support plate 101, and the fixing clamp 104 is slidably arranged on the track 103. When performing a tensile test on an automotive wiring harness, the fixing clamp 104 is controlled and driven to slide on the track 103 by the linear motor 102 to adjust the angle of the automotive wiring harness tensile test.

[0024] The mobile testing device 2 includes an upper base plate 201, a second linear motor 202, a second track 203, a moving plate 204, a pressure sensor, and a pressure sensor ring, all disposed on the side of the upper base plate 201. The second track 203 is disposed on the upper base plate 201, and the moving plate 204 is slidably disposed on the second track 203. A push-pull force gauge 205, model SGSF-300, is disposed on the side of the moving plate 204. The push-pull force gauge 205 has a fixing ring 206. A groove 207 penetrating the upper base plate 201 is disposed on the second track 203. During tensile testing, one end of the automotive wiring harness passes through the groove 207 in sequence. The fixing ring 206 on the push-pull force gauge 205 is fixed to the fixing clamp 306 after the groove 207. The linear motor 202 controls and drives the moving plate 204 to move, thereby driving the push-pull force gauge 205 to move. After the two ends of the automotive wiring harness are fixed to the fixing clamp 104 and the fixing clamp 306 respectively, the corresponding distance between the fixing clamp 104 and the moving plate 204 is further adjusted according to the angle input by the analysis and management center, so that the angle between the automotive wiring harness at the fixing clamp 104 and the track 103 matches the input angle, thereby achieving the purpose of adjusting and controlling the testing angle of the automotive wiring harness. In this step, along with the fixing device 1, the required test angles for the corresponding number of automotive wiring harnesses can be input at the analysis and management center according to the number of tracks 103. Then, the linear motors 102 and 202 control and drive the corresponding fixing clamps 104 and moving plates 204 to move, thereby automatically reaching the corresponding input angle. This achieves the goal of simultaneously and automatically adjusting the angles of multiple automotive wiring harnesses for testing, effectively improving the efficiency and convenience of automotive wiring harness tensile testing, avoiding errors caused by manual adjustment and control, and saving a significant amount of human resources.

[0025] The rotating device 3 includes a lower base plate 301, a drive motor 302, a support rod 303, a rotating shaft 304, a gear 305, a fixing clamp 306, and a groove 307. The lower base plate 301 is located at the bottom of the support plate 101. The support rod 303 is located in the lower middle part of the support plate 101. The drive motor 302 is located on the side of the support rod 303. The rotating shaft 304 is rotatably mounted on the side of the support rod 303. The gear 305 is mounted on the rotating shaft 304. The fixing clamp 306 is mounted on the gear 305. The groove 307 is located on the teeth of the gear 305. The second clamp 306 is used to fix one end of the automotive wiring harness by means of two elastic clips. The second groove 307 on the gear teeth of the gear 305 is used to gather the automotive wiring harness. During the tensile test, after the two ends of the automotive wiring harness are fixed to the first clamp 104 and the second clamp 306 respectively, the third drive motor 302 drives the gear 305 to rotate, thereby gathering the redundant automotive wiring harness and generating a tensile force on the automotive wiring harness, generating a thrust on the push-pull force gauge 205. Then, the data of the thrust generated on the push-pull force gauge 205 when the automotive wiring harness breaks is obtained through the analysis and management center, and the tensile force data in the corresponding angular direction that causes the automotive wiring harness to break is obtained through analysis. In this step, after both ends of the automotive wiring harness are fixed to the first fixing clamp 104 and the second fixing clamp 306 respectively, during the further angle adjustment process according to the input angle, the third drive motor 302 drives the gear 305 to rotate at a corresponding speed, so as to gradually tighten the automotive wiring harness and avoid the situation where the first fixing clamp 104 and the moving plate 204 are affected by the excessive length of the automotive wiring harness. At the same time, as the gear 305 rotates, the number of turns of the automotive wiring harness on the second groove 307 of the gear 305 increases, so that the wiring harness at this end is continuously wound, which indirectly enhances the firmness of the automotive wiring harness after being fixed by the second fixing bracket, and ensures that the automotive wiring harness is subjected to a tensile test according to the angle direction set at the other end.

[0026] After fixing the corresponding number of automotive wiring harnesses to the tensile testing platform, the angle to be tested for each automotive wiring harness is input through the data input module. The data receiving module receives the input tensile testing angle. Subsequently, the drive control module drives the fixed clamp 104 and the moving plate 204 to move via the linear motor 102 and the linear motor 202 respectively, so that the angle between the automotive wiring harness 4 fixed at one end of the fixed clamp 104 and the length direction of the track 103 is the angle of the fixed clamp 104. ;

[0027] In the calculation and analysis module, through formula The distance between the fixing clamp 104 and the upper base plate 201 is... The distance between the movable plate 204 and the support plate 101 is .

[0028] After the tensile test angle is adjusted, when the drive motor 302 drives the gear 305 to rotate through the drive control module, it will generate a thrust on the push-pull force gauge 205. The data detected by the push-pull force gauge 205 is received through the data receiving module.

[0029] As the drive motor 302 drives the gear 305 to rotate until the automotive wiring harness end at the fixing clamp 104 is broken, the data receiving module receives the data detected by the push-pull force gauge 205. Then, the maximum thrust received by the push-pull force gauge 205 is extracted. , where i is the time point detected by the push-pull force gauge 205; in this step, as the drive motor 302 drives the gear 305 to rotate until the end of the car wiring harness at the fixed clamp 104 is broken, the push force on the push-pull force gauge 205 is the largest when the end of the car wiring harness at the fixed clamp 104 is broken. Therefore, the maximum value in the push force data detected by the push-pull force gauge 205 is extracted for subsequent calculation and analysis of the pull force at the corresponding angle when the end of the car wiring harness is broken.

[0030] Based on the detected data The tensile force at the corresponding angle when the automotive wiring harness end at the fixed clamp 104 is broken is calculated and analyzed. , ,in β is the angle formed by the automotive wiring harness 4 at the moving plate 204 and the top plane of the upper base plate 201. After fixing the corresponding number of automotive wiring harnesses to the tensile testing platform, and inputting the angle to be tested for each automotive wiring harness through the analysis and management center, the corresponding distance control adjustment between the fixing clamp 104 and the moving plate 204 of each automotive wiring harness is performed according to the angle input by the analysis and management center, so that the angle between the automotive wiring harness at each fixing clamp 104 and the track 103 matches the input angle. According to step S3, the tensile force test of multiple automotive wiring harnesses at different angles can be completed at the same time, effectively improving the intelligence and efficiency of the test.

[0031] In this embodiment, three 6dm long automotive wiring harnesses are fixed to the tensile testing platform, and the angles for tensile testing of each automotive wiring harness are input through the analysis and management center. , , Then, linear motor 102 and linear motor 202 respectively drive and control the movement of fixed clamp 104 and moving plate 204, so that the tensile test angle is... The moving distance of the automotive wiring harness fixing clamp 104 is 1.732 dm, and the moving distance of the moving plate 204 is 3 dm; so that the tensile test angle is... The moving distance of the automotive wiring harness fixing clamp 104 is 1.5dm, and the moving distance of the moving plate 204 is 1.5dm; so that the tensile test angle is... After the automotive wiring harness fixing clamp 104 moved a distance of 1.732 dm and the moving plate 204 moved a distance of 1 dm, as the drive motor 302 drove the gear 305 to rotate until the end of the automotive wiring harness at the fixing clamp 104 was broken, the analysis and management center received a tensile test angle of... , , After analyzing the data detected by the push-pull force gauge 205, the maximum values ​​of the thrust data obtained from the push-pull force gauge 205 were extracted as 160N, 135N, and 115N, respectively, and further calculated according to the formula... Simultaneously, the tensile test angle was calculated and analyzed to be... , , The maximum tensile strengths of the automotive wiring harnesses are 80N, 190.89N, and 90.59N, respectively. In this embodiment, the time taken for the tensile test of the three automotive wiring harnesses at different angles is 4-5 minutes, while the time taken by the existing test method under the same test conditions is 20-30 minutes.

Claims

1. A tensile testing platform for automotive wiring harnesses, characterized in that: The test device includes a test body (0), a fixing device (1) set on the test body (0), a moving test device (2) and a rotating device (3). The fixing device (1) is set on the top of the test body (0), and the moving test device (2) and the rotating device (3) are set on the bottom of the test body (0). The fixing device (1) is provided with a fixing clamp one (104), and the rotating device (3) is provided with a fixing clamp two (306). The fixing clamp one (104) and the fixing clamp two (306) are used to fix the end of the automotive wiring harness. After the end of the automotive wiring harness is fixed, the angle of the tensile test is determined by moving and adjusting the moving test device (2) and the fixing device (1), and the tensile test of the automotive wiring harness is realized by rotating the rotating device (3). The automotive wiring harness tensile testing platform is controlled by an analysis and management center. The analysis and management center includes a data input module, a data receiving module, a calculation and analysis module, and a drive control module. The data input module is used to input and process tensile test angle data. The moving test device (2) is equipped with a push-pull force gauge (205). The data receiving module is used to receive the detection data of the push-pull force gauge (205). The calculation and analysis module is used to calculate, analyze, and manage data information. The fixed device (1) is equipped with a linear motor one (102). The moving test device (2) is equipped with a linear motor two (202). The rotating device (3) is equipped with a drive motor three (302). The drive control module is used to control the linear motor one (102), the linear motor two (202), and the drive motor three (302).

2. The automotive wiring harness tensile testing platform according to claim 1, characterized in that: The fixing device (1) includes a support plate (101), a linear motor (102), a track (103), and a fixing clamp (104). The linear motor (102) is provided on the top of the support plate (101), the track (103) is provided on the support plate (101), and the fixing clamp (104) is slidably arranged on the track (103). When performing a car wiring harness tensile test, the fixing clamp (104) is controlled and driven by the linear motor (102) to slide on the track (103) to adjust the angle of the car wiring harness tensile test.

3. The automotive wiring harness tensile testing platform according to claim 2, characterized in that: The mobile testing device (2) includes an upper base plate (201), a second linear motor (202), a second track (203), a moving plate (204), a push-pull force gauge (205), a fixing ring (206), and a first groove (207) disposed on the side of the upper base plate (201). The second track (203) is disposed on the upper base plate (201), and the moving plate (204) is slidably disposed on the second track (203). The push-pull force gauge (205) is disposed on the side of the moving plate (204), and the fixing ring (206) is disposed on the push-pull force gauge (205). The first groove (207) is disposed on the second track (203) and penetrates the upper base plate (201).

4. The automotive wiring harness tensile testing platform according to claim 3, characterized in that: The rotating device (3) includes a lower base plate (301), a third drive motor (302), a support rod (303), a rotating shaft (304), a gear (305), a second fixing clamp (306), and a second groove (307). The lower base plate (301) is located at the bottom of the support plate (101), the support rod (303) is located in the lower middle part of the support plate (101), and the third drive motor (302) is located on the side of the support rod (303). The rod (303) is rotatably provided with the shaft (304) on its side. The shaft (304) is provided with the gear (305). The gear (305) is provided with the fixing clip (306). The gear teeth (305) are provided with the groove (307). The fixing clip (306) is used to fix one end of the car wiring harness through two elastic clips. The groove (307) on the gear teeth (305) is used to gather the car wiring harness.

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