Automotive electronic FCT testing device

Abstract

The invention relates to the technical field of FCT testing, in particular to an automobile electronic FCT testing device which comprises a supporting plate, a rotating shaft, a conveying chain plate, a positioning motor, a clamping unit, a testing unit and a fastening unit. According to the invention, the following problems existing in the process of testing the automobile electronic mainboard in the prior art can be solved: the to-be-tested mainboard cannot be plugged and electrified and corresponding function test cannot be carried out, the vibration of the mainboard in the automobile driving process cannot be simulated, the connection stability of the terminal on the to-be-tested mainboard cannot be simulated, and the test effect and precision are influenced; according to the invention, the mainboard to be tested can be comprehensively clamped and limited in multiple directions, the stability of the mainboard to be tested in the testing process is ensured, the mainboard to be tested can be driven to vibrate, so that the vibration effect on the mainboard in the mainboard to be tested when an automobile runs on a bumpy road is simulated, the mainboard to be tested is subjected to function testing and vibration testing at the same time, and the testing efficiency is improved. And the test effect and precision can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of FCT testing, and in particular to an automotive electronic FCT testing device. Background Art

[0002] FCT refers to a test method that performs functional tests on the electronic motherboard to be tested, simulating its operation in various design states, thereby obtaining parameters of each state to verify whether it can be used normally. When FCT testing is applied in the field of automotive electronic products, it is usually used to test automotive electronic motherboards to ensure that they can work normally as expected.

[0003] However, there are usually some problems when testing automotive electronic motherboards. With the development of science and technology, technicians in related fields have also made a lot of optimizations on the testing of automotive electronic motherboards. In order to make a more accurate comparison, a Chinese patent with publication number CN114839513A discloses an automotive electronic FCT testing device, including a conveying device, a containing device installed in the conveying device, fixed frames fixedly connected on both sides of the conveying device, a hydraulic telescopic rod and a second motor fixedly connected on the upper end of the fixed frame, a toggle device fixedly connected at the output end of the hydraulic telescopic rod, the toggle device is located inside the fixed frame, a lifting device is installed in the fixed frame, a test board is fixedly connected at the lower end of the lifting device, the test board is fixedly connected to a support plate through a linkage mechanism, and the support plate is located directly below the test plate.

[0004] When the above-mentioned prior art is in use, the mainboard to be tested is placed inside the containing device, and then the conveying device conveys the mainboard to be tested to the lower end of the test board, and then the test board is brought into contact with the mainboard to be tested under the action of the second motor, the transmission mechanism and the lifting device to complete the test of the mainboard to be tested; at the same time, the support plate supports the mainboard to be tested to prevent the test board from excessively squeezing the mainboard to be tested, thereby protecting the mainboard and reducing the damage rate of the product.

[0005] However, there are still some deficiencies in the process of testing automotive electronic motherboards in the above-mentioned prior art: 1. Since there are multiple terminals on the motherboard to be tested, when testing the motherboard to be tested, it is necessary to connect to its terminals to complete the functional test. However, the above-mentioned prior art only tests by contacting the test board with the motherboard to be tested, and the motherboard to be tested cannot be plugged in and powered on and the corresponding functional test can not be performed, thus affecting the test effect. It is not only difficult to accurately test whether the motherboard to be tested can be used normally, but also affects the test accuracy.

[0006] 2. Also, since a car may pass through bumpy roads during driving, the motherboard inside the car will be subjected to the vibrations caused by the bumps of the car, so it is necessary to test the vibration-proof performance of the car motherboard. However, the above-mentioned prior art cannot simulate the vibrations that the motherboard is subjected to during driving of the car, as well as the connection stability of the terminals on the motherboard to be tested, which further affects the test effect.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing automotive electronic motherboard testing methods. Summary of the invention

[0008] In order to solve the above problems, the present invention provides an automotive electronic FCT testing device, comprising two vertically arranged support plates, wherein opposite sides of the two support plates are provided with a plurality of equidistantly distributed rotating shafts that rotate together along the length direction, and the outer walls of the plurality of rotating shafts are jointly sleeved with a transmission chain plate, and a positioning motor connected to any one of the rotating shafts is provided on the side wall of any one of the support plates through a motor seat.

[0009] The outer wall of the conveying chain plate is provided with a plurality of clamping units for mounting the main board to be tested, the clamping unit comprises a supporting block mounted on the outer wall of the conveying chain plate, a placing plate is provided on the side of the supporting block away from the conveying chain plate, a testing unit for performing functional testing on the main board to be tested is mounted on the placing plate, and the testing unit comprises a vibration component installed between the supporting block and the supporting plate and used to enhance the testing effect.

[0010] As a preferred technical solution of the present invention, the clamping unit also includes a supporting rubber strip installed in the middle of the side of the placement plate away from the supporting block, sliding grooves are opened on the side of the placement plate away from the supporting block near its four side edges, an execution strip is slidably docked inside the sliding groove, a supporting spring is installed between the execution strip and the inner wall of the sliding groove away from the supporting rubber strip, and a clamping plate is installed on the side of the execution strip away from the placement plate.

[0011] As a preferred technical solution of the present invention, an elastic limit strip and a bottom support plate are sequentially installed on the upper and lower sides of the clamping plate close to the supporting rubber strip. The elastic limit strip has an arc-shaped protrusion on the side close to the supporting rubber strip, and the upper end of the bottom support plate is flush with the upper end of the supporting rubber strip.

[0012] As a preferred technical solution of the present invention, the test unit includes a controller and a test plug installed on the side of the placement plate away from the supporting block. The controller and the test plug are electrically connected, and an indicator light is also electrically connected to the controller. There are multiple test plugs and they include plug connectors for connecting to multiple different models of mainboards to be tested.

[0013] As a preferred technical solution of the present invention, the vibration assembly includes a positioning rod, and two positioning rods are symmetrically arranged up and down along the conveying chain plate on the opposite sides of the two support plates, and a wave guide groove is opened on the side of the positioning rod close to the conveying chain plate; The side of the supporting block away from the placement plate is connected to the conveying chain plate through a pad plate, and multiple contraction spring rods are installed between the supporting block and the pad plate. The side walls of the supporting block close to the two support plates are provided with support rods, which are slidably docked inside the wave guide groove.

[0014] As a preferred technical solution of the present invention, the wave guide groove is composed of a plurality of mutually connected inclined grooves, and two adjacent inclined grooves are symmetrically arranged so that the connecting point of the two inclined grooves is convex upward or concave downward, and a guide groove connected to the wave guide groove is provided at the end of the positioning rod.

[0015] As a preferred technical solution of the present invention, the conveying chain plate is composed of a plurality of link plates hinged to each other, and a plurality of supporting blocks are distributed at intervals on the outer side walls of the plurality of link plates.

[0016] As a preferred technical solution of the present invention, it also includes a fastening unit for further fixing and limiting the mainboard to be tested, the fastening unit includes a limiting sliding hole opened in the middle of the supporting block, the limiting sliding hole runs through the width direction of the supporting block, an execution block is slidably penetrated inside the limiting sliding hole, a connecting block is arranged on the side of the execution block away from the conveying chain plate, and a pull rope is installed between the connecting block and the side of multiple execution strips on the same supporting block close to the supporting rubber strip.

[0017] As a preferred technical solution of the present invention, the outer wall of the conveying chain plate is provided with a plurality of fixed blocks spaced apart from the supporting blocks, the fixed blocks are provided with linkage holes corresponding to the positions of the limiting sliding holes, a support shaft is installed inside the linkage hole, and two telescopic plates are symmetrically rotatably sleeved on the outer wall of the support shaft, and the telescopic plate is rotatably connected between the side away from the support shaft and the corresponding execution block.

[0018] As a preferred technical solution of the present invention, a force-bearing block is installed after any end of the support shaft slides out to the outside of the fixed block, and a horizontal U-shaped frame is installed on the side wall of the support plate close to the force-bearing block. The opening of the U-shaped frame has two horizontal sections that are flush with the force-bearing block, and the force-bearing block and the U-shaped frame slide against each other; The outer wall of the fixed block is provided with a limiting sleeve which is slidably sleeved on the outer wall of the supporting shaft.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention uses multiple clamping plates to lean against the outer wall of the mainboard to be tested, and uses supporting rubber strips and multiple bottom support plates to support the mainboard to be tested in multiple directions. Then, multiple elastic limit strips lean against the upper end of the mainboard to be tested to press it in multiple directions. In this way, the mainboard to be tested can be clamped and limited in multiple directions to ensure its stability during the test and prevent it from shaking or falling randomly during the test to affect the test progress.

[0020] 2. The present invention drives the main board to be tested to move by a transmission chain plate while controlling the main board to be tested to vibrate back and forth up and down, thereby simulating the vibration effect caused to the internal main board of a car when it is driving on a bumpy road, and testing its vibration resistance by monitoring whether the main board to be tested is damaged or defective under the vibration effect; thus, a vibration test can be performed on the main board to be tested while a functional test is being performed on it, thereby improving the test effect and accuracy, and simulating the test results of the main board to be tested in different environments.

[0021] 3. In the present invention, when the force block contacts the side wall of the U-shaped frame, the support shaft, the telescopic plate and the execution block can be driven to move to the side away from the U-shaped frame. The execution block drives the clamping plate to move closer to the side of the motherboard to be tested through the connecting block and the pull rope, thereby increasing the resistance between the clamping plate and the motherboard to be tested, thereby achieving tightening on the basis of clamping and limiting the motherboard to be tested, further enhancing the stability of the motherboard to be tested, and preventing it from falling during the vibration test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure between the conveying chain plate and the clamping unit of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the clamping unit of the present invention.

[0026] Figure 4 The present invention Figure 3 A partial enlarged view of point A.

[0027] Figure 5 It is a schematic diagram of the structure between the conveying chain plate and the testing unit of the present invention.

[0028] Figure 6 The present invention Figure 5 A partial enlarged view of point B.

[0029] Figure 7 It is a schematic diagram of the structure between the transmission chain plate and the fastening unit of the present invention.

[0030] Figure 8 It is a structural schematic diagram of the fastening unit of the present invention.

[0031] Fig. 9 The present invention Figure 8 A partial enlarged view of point C.

[0032] Fig.10 The present invention Figure 8 A partial enlarged view of point D.

[0033] In the figure, 1, support plate; 2, rotating shaft; 3, transmission chain plate; 4, positioning motor; 5, clamping unit; 51, supporting block; 511, pad; 52, placing plate; 53, supporting rubber strip; 54, sliding groove; 55, execution strip; 56, top support spring; 57, clamping plate; 571, elastic limit strip; 572, bottom support plate; 6, test unit; 61, vibration component; 611, positioning rod; 612, wave guide groove; 613, contraction spring rod; 614, support rod; 615, guide groove; 62, controller; 63, indicator light; 64, plug connector; 7, fastening unit; 71, limit slide hole; 72, execution block; 73, connecting block; 74, pull rope; 75, fixing block; 76, support shaft; 77, telescopic plate; 78, force block; 79, U-shaped frame; 70, limit sleeve. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-Figure 10 Embodiments of the present invention are described in detail.

[0035] The embodiment of the present application discloses an automotive electronic FCT test device. It should be noted that the automotive electronic FCT test device of the present application is mainly used in the process of functional testing of automotive electronic mainboards. In terms of technical effect, it can perform multi-directional and comprehensive clamping and limiting of the mainboard to be tested, and secondly perform functional testing on the mainboard to be tested and monitor the test results in real time, and display the test results of the mainboard to be tested by lighting up the lights; in particular, during the test process, vibration can be applied to it while performing the functional test, so as to simulate the vibration effect caused to the internal mainboard of the car when driving on a bumpy road, and its anti-vibration performance is tested by monitoring whether the mainboard to be tested is damaged or defective under the vibration effect, thereby simulating the test results of the mainboard to be tested under different environments; further, the automotive electronic FCT test device of the present application can also be further tightened on the basis of being clamped and fixed, so as to enhance the stability of the mainboard to be tested during the test process and prevent it from falling during the vibration test.

[0036] Embodiment 1: Reference Figure 1 and Figure 2 As shown, an automotive electronic FCT test device comprises two vertically arranged support plates 1, a plurality of equally distributed rotating shafts 2 are arranged on opposite sides of the two support plates 1 for common rotation along the length direction, a transmission chain plate 3 is commonly sleeved on the outer walls of the plurality of rotating shafts 2, and a positioning motor 4 connected to any rotating shaft 2 is arranged on the side wall of any support plate 1 through a motor seat.

[0037] Furthermore, in this embodiment, the outer wall of the conveying chain plate 3 is provided with a plurality of clamping units 5 for installing the main board to be tested, the clamping unit 5 includes a supporting block 51 installed on the outer wall of the conveying chain plate 3, a placing plate 52 is provided on the side of the supporting block 51 away from the conveying chain plate 3, a test unit 6 for functional testing of the main board to be tested is installed on the placing plate 52, and the test unit 6 includes a vibration component 61 installed between the supporting block 51 and the support plate 1 and used to enhance the test effect.

[0038] It should be noted that the conveying chain plate 3 is composed of a plurality of link plates hinged to each other, and a plurality of supporting blocks 51 are distributed at intervals on the outer side walls of the plurality of link plates.

[0039] During the specific implementation process, the positioning motor 4 is first started, and the positioning motor 4 drives the conveying chain plate 3 to rotate through the rotating shaft 2. Secondly, the main board to be tested is placed on the multiple placement plates 52 on the outer wall of the conveying chain plate 3 in turn, and then the main board to be tested is correspondingly limited and fixed by the clamping unit 5, so that the conveying chain plate 3 drives the main board to be tested to move synchronously through the placement plate 52; during this period, the main board to be tested is functionally tested by the test unit 6, and the vibration effect is applied to the main board to be tested by the vibration component 61, so as to enhance the test effect and comprehensiveness of the main board to be tested.

[0040] Reference Figure 2 and Figure 3 As shown, in order to ensure the stability of the mainboard to be tested during the test, it is necessary to limit and fix it accordingly so that the conveying chain plate 3 can drive the mainboard to be tested to move circumferentially. Based on this, a clamping unit 5 is provided in this embodiment. Specifically, the clamping unit 5 also includes a supporting rubber strip 53 installed in the middle of the side of the placement plate 52 away from the supporting block 51, and a sliding groove 54 is provided on the side of the placement plate 52 away from the supporting block 51 near its four side edges, and an execution strip 55 is slidably docked inside the sliding groove 54, and a supporting spring 56 is installed between the execution strip 55 and the inner wall of the sliding groove 54 away from the support rubber strip 53, and a clamping plate 57 is installed on the side of the execution strip 55 away from the placement plate 52.

[0041] It should be noted that the support rubber strip 53 is used to support the motherboard to be tested, and the top of the support rubber strip 53 is made of flexible material to prevent the support rubber strip 53 from causing resistance and damage to the motherboard to be tested; in addition, the top support spring 56 always applies a pushing force to the execution strip 55, so that the execution strip 55 has a tendency to move toward the side of the support rubber strip 53 in the initial state.

[0042] In the specific implementation process, after the mainboard to be tested is placed on the placement plate 52, the mainboard to be tested contacts the supporting rubber strip 53, and then the execution bar 55 drives the clamping plate 57 to move to the side close to the supporting rubber strip 53 under the action of the top support spring 56, so that multiple clamping plates 57 are against the outer wall of the mainboard to be tested, so that the mainboard to be tested can be clamped and fixed in multiple directions to ensure its stability during the test.

[0043] Reference Figure 4 As shown, in order to prevent the motherboard to be tested from falling during the test, the clamping plate 57 in this embodiment can also limit the motherboard to be tested accordingly on the basis of applying a clamping effect to it. An elastic limiting strip 571 and a bottom support plate 572 are successively installed on the upper and lower sides of the clamping plate 57 close to the supporting rubber strip 53. The elastic limiting strip 571 has an arc-shaped protrusion on the side close to the supporting rubber strip 53, and the upper end of the bottom support plate 572 is flush with the upper end of the supporting rubber strip 53.

[0044] During the specific implementation process, after the motherboard to be tested is placed on the supporting rubber strip 53, the four sides of the motherboard to be tested are respectively against multiple bottom support plates 572, so as to cooperate with the supporting rubber strip 53 to provide multi-directional support for the motherboard to be tested; at the same time, the elastic limit strip 571 is against the upper end of the four sides of the motherboard to be tested, so as to achieve multi-directional pressing of the motherboard to be tested, and under the action of the clamping plate 57, the motherboard to be tested can be further clamped and limited in all directions to prevent it from shaking or falling during the test and affecting the test progress.

[0045] Reference Figure 3 and Figure 4 As shown, in order to facilitate the functional test of the motherboard to be tested, it is necessary to connect it to the power supply, simulate the load, and perform a functional test on it under the load state. The test unit 6 includes a controller 62 and a test plug installed on the side of the placement plate 52 away from the supporting block 51. The controller 62 is electrically connected to the test plug, and an indicator light 63 is also electrically connected to the controller 62. There are multiple test plugs and they include a plug connector 64 for connecting to multiple different models of motherboards to be tested.

[0046] It should be noted that the controller 62 used in this embodiment is a prior art, which is used to receive test information of the plug connector 64 and output a signal to the indicator light 63, and its specific working principle will not be repeated here.

[0047] In the specific implementation process, after the motherboard to be tested is clamped and fixed, the plug connector 64 that is compatible with it is plugged into the terminals of the motherboard to be tested, and then the controller 62 performs a functional test on the motherboard to be tested through the connection between the plug connector 64 and the terminals, and monitors the motherboard to be tested in real time; during the test process, the indicator light 63 is always on. If the motherboard to be tested fails, the controller 62 receives a signal and transmits a signal to the indicator light 63, and the indicator light 63 goes out to prompt the tester of the test result of the motherboard to be tested; if the motherboard to be tested passes the test, the indicator light 63 is always on, thereby realizing the functional test of the motherboard to be tested and improving the test accuracy.

[0048] Reference Figure 5 and Figure 6 As shown, since the car may pass through bumpy sections during normal driving, the mainboard inside the car is susceptible to bumpy vibrations. Therefore, in order to simulate the test effects of the mainboard to be tested under different environments, a vibration component 61 is also provided in this embodiment. Specifically, the vibration component 61 includes a positioning rod 611. Two positioning rods 611 are symmetrically arranged along the conveying chain plate 3 on the opposite sides of the two support plates 1. A wave guide groove 612 is provided on the side of the positioning rod 611 close to the conveying chain plate 3; the side of the supporting block 51 away from the placement plate 52 is connected to the conveying chain plate 3 through a pad 511, and a plurality of retractable spring rods 613 are installed between the supporting block 51 and the pad 511. The side walls of the supporting block 51 close to the two support plates 1 are provided with support rods 614, and the support rods 614 are slidably docked in the wave guide groove 612.

[0049] Continue to refer to Figure 6 As shown, further, in this embodiment, the wave guide groove 612 is composed of a plurality of inclined grooves connected to each other, and two adjacent inclined grooves are symmetrically arranged so that the connecting point of the two inclined grooves is convex upward or concave downward, and a guide groove 615 connected to the wave guide groove 612 is provided at the end of the positioning rod 611.

[0050] It should be noted that the contraction spring rod 613 always applies a contraction force to the supporting block 51, so that the supporting block 51 has a tendency to move toward the side of the pad 511 in the initial state, so that the distance between the supporting block 51 and the placement plate 52 and the conveying chain plate 3 is the smallest in the initial state. At this time, the support rod 614 is flush with the middle of the guide groove 615, so that the support rod 614 can slide smoothly into the guide groove 615.

[0051] In the specific implementation process, during the functional test of the motherboard to be tested, the transmission chain plate 3 drives the motherboard to be tested to move through the supporting block 51 and the placement plate 52, so that the supporting block 51 drives the support rod 614 to move synchronously; during this period, when the support rod 614 moves to the protrusion of the wave guide groove 612, it drives the supporting block 51, the placement plate 52 and the motherboard to be tested to move upward as a whole, and then the support rod 614 moves to the concave part of the wave guide groove 612, so that the supporting block 51 drives the placement plate 52 and the motherboard to be tested as a whole under the action of the contraction spring rod 613. It moves downward quickly to reset; thereby, the support rod 614, under the action of the wave guide groove 612, drives the supporting block 51, the placement plate 52 and the main board to be tested on its upper end to vibrate up and down as a whole, thereby simulating the vibration effect caused to the internal main board of a car when it is driving on a bumpy road section, and testing its vibration resistance by monitoring whether the main board to be tested is damaged or defective under the vibration effect; thereby, the main board to be tested can be subjected to a vibration test while undergoing a functional test, thereby improving the test effect and accuracy, and simulating the test results of the main board to be tested in different environments.

[0052] In addition, by applying vibration to the motherboard under test, the stability of its terminals after plugging in can also be tested to prevent the terminals from becoming loose due to vibration during use, thus affecting normal use.

[0053] Embodiment 2: Reference Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, on the basis of the first embodiment, in order to prevent the mainboard to be tested from vibrating off the placement plate 52 during the vibration test, which not only easily causes damage to the mainboard to be tested but also affects the test progress, a fastening unit 7 for further fixing and limiting the mainboard to be tested is also provided in this embodiment. Specifically, the fastening unit 7 includes a limiting slide hole 71 opened in the middle of the supporting block 51, and the limiting slide hole 71 runs through the width direction of the supporting block 51. An execution block 72 is slidably penetrated inside the limiting slide hole 71. A connecting block 73 is provided on the side of the execution block 72 away from the conveying chain plate 3, and a pull rope 74 is installed between the connecting block 73 and the side of multiple execution strips 55 on the same supporting block 51 close to the supporting rubber strip 53.

[0054] Furthermore, in order to facilitate the application of tension to the execution bar 55 and cooperate with the clamping plate 57 to further tighten and limit the main board to be tested, the execution block 72 is required to automatically move along the limiting slide hole 71 and apply tension to the execution bar 55 through the pull rope 74. Based on this, in the present embodiment, the outer wall of the transmission chain plate 3 is provided with a plurality of fixed blocks 75 spaced apart from the supporting block 51, and the fixed block 75 is provided with a linkage hole corresponding to the position of the limiting slide hole 71, and a support shaft 76 is installed inside the linkage hole. Two telescopic plates 77 are symmetrically rotatably sleeved on the outer wall of the support shaft 76, and the telescopic plate 77 is rotatably connected to the corresponding execution block 72 on the side away from the support shaft 76. When the transmission chain plate 3 moves to the rotating shaft 2 and the link plate needs to be bent, the angle between the supporting block 51 and the fixed block 75 gradually decreases from 180 degrees to 90 degrees. At this time, the telescopic plate 77 and the execution block 72 and the support shaft 76 rotate adaptively, and the telescopic plate 77 can be adaptively telescoped. During this period, the telescopic plate 77 will not come into contact with the transmission chain plate 3.

[0055] Furthermore, in the present embodiment, after any end of the support shaft 76 slides out to the outside of the fixed block 75, a force-bearing block 78 is installed thereon, and a horizontal U-shaped frame 79 is installed on the side wall of the support plate 1 close to the side of the force-bearing block 78. The opening of the U-shaped frame 79 has two horizontal sections that are flush with the force-bearing block 78, and the force-bearing block 78 and the U-shaped frame 79 slide in contact with each other; it should be noted that the end of the horizontal section of the U-shaped frame 79 has an inclined chamfer that facilitates the force-bearing block 78 to slide to the side wall of the U-shaped frame 79, so as to improve the smoothness of the cooperation between the force-bearing block 78 and the U-shaped frame 79; the outer wall of the fixed block 75 is installed with a limiting sleeve 70 that is slidably sleeved on the outer wall of the support shaft 76, and the limiting sleeve 70 can support and limit the support shaft 76 to avoid bending of the support shaft 76 and the like, which causes the force-bearing block 78 to be unable to normally contact the U-shaped frame 79.

[0056] In the initial state, the execution block 72 is located in the middle of the limiting slide hole 71 under the action of multiple execution bars 55 and the pull rope 74, and the execution block 72 drives the force block 78 and the fixed block 75 to the maximum distance through the telescopic plate 77 and the support shaft 76, so as to facilitate the interference fit between the force block 78 and the U-shaped frame 79.

[0057] When the transmission chain plate 3 drives the fixed block 75 to move to the end of the horizontal section of the U-shaped frame 79, the force block 78 contacts the upper half of the side wall of the U-shaped frame 79 and drives the support shaft 76 to move to the side away from the U-shaped frame 79. The support shaft 76 drives the execution block 72 to move synchronously in the limiting slide hole 71 through the telescopic plate 77, so that the execution block 72 applies tension to multiple pull ropes 74 at the same time through the connecting block 73. The pull rope 74 drives the clamping plate 57 to move closer to the side of the main board to be tested through the execution bar 55, thereby increasing the resistance between the clamping plate 57 and the main board to be tested, thereby achieving tightening on the basis of the clamping limit of the main board to be tested, further enhancing the stability of the main board to be tested, and preventing it from falling during the vibration test.

[0058] During the testing process of the motherboard to be tested, the conveying chain plate 3 drives the motherboard to be tested to move to the bottom of the conveying chain plate 3 through the supporting block 51. At this time, the force block 78 is still in conflict with the side wall of the U-shaped frame 79; after the test of the motherboard to be tested is completed, the force block 78 is detached from the U-shaped frame 79, so that the force block 78, the support shaft 76, the telescopic plate 77, the execution block 72 and the clamping plate 57 are reset, so that the tested motherboard can be removed and the motherboard to be tested can be installed on the placement plate 52 for testing; by combining the above steps, the automated continuous testing of the motherboard to be tested can be realized.

[0059] During operation: Step 1: First, start the positioning motor 4, which drives the conveying chain plate 3 to rotate through the rotating shaft 2, and then place the main board to be tested on multiple placement plates 52 on the outer wall of the conveying chain plate 3 in sequence.

[0060] Step 2: When the motherboard to be tested is placed on the placement plate 52, it contacts the supporting rubber strip 53. Then, the execution strip 55 drives the clamping plate 57 to move to the side close to the supporting rubber strip 53 under the action of the top support spring 56, so that multiple clamping plates 57 are pressed against the outer wall of the motherboard to be tested to initially clamp and fix it; at the same time, the four sides of the motherboard to be tested are respectively pressed against multiple bottom supporting plates 572, so as to cooperate with the supporting rubber strip 53 to provide multi-directional support for the motherboard to be tested, and the elastic limiting strip 571 is pressed against the upper end of the four sides of the motherboard to be tested, so as to realize multi-directional pressing of the motherboard to be tested, and under the action of the clamping plate 57, the motherboard to be tested can be further clamped and limited in multiple directions to prevent it from shaking or falling at will during the test and affecting the test progress.

[0061] Step 3: Plug the terminals of the motherboard to be tested into the corresponding plug connector 64, and then the controller 62 performs a functional test on the motherboard to be tested through the connection between the plug connector 64 and the terminals, and monitors the motherboard to be tested in real time; during the test, whether the motherboard to be tested is qualified is monitored by whether the indicator light 63 is on, so as to prompt the tester of the test result of the motherboard to be tested, thereby realizing the functional test of the motherboard to be tested and improving the test accuracy.

[0062] Step 4: During the functional test of the mainboard to be tested, the transmission chain plate 3 drives the mainboard to be tested to move through the supporting block 51 and the placement plate 52, so that the supporting block 51 drives the support rod 614 to move synchronously; during this period, the support rod 614 and the wave guide groove 612 cooperate with each other to drive the supporting block 51, the placement plate 52 and the mainboard to be tested at its upper end to vibrate up and down as a whole, thereby simulating the vibration effect caused to the mainboard inside the car when driving on a bumpy road, and testing its anti-vibration performance by monitoring whether the mainboard to be tested is damaged or defective under the vibration effect; thereby, the mainboard to be tested can be subjected to a vibration test while undergoing a functional test, and the test results of the mainboard to be tested in different environments can be simulated.

[0063] Step 5: When the transmission chain plate 3 drives the fixed block 75 to move to the end of the horizontal section of the U-shaped frame 79, the force block 78 contacts the upper half of the side wall of the U-shaped frame 79 and drives the support shaft 76 to move to the side away from the U-shaped frame 79. The support shaft 76 drives the execution block 72 to move synchronously in the limit slide hole 71 through the telescopic plate 77, so that the execution block 72 applies tension to multiple pull ropes 74 at the same time through the connecting block 73. The pull rope 74 drives the clamping plate 57 to move closer to the side of the main board to be tested through the execution bar 55, thereby increasing the resistance between the clamping plate 57 and the main board to be tested, thereby achieving tightening on the basis of clamping and limiting the main board to be tested, further enhancing the stability of the main board to be tested, and preventing it from falling during the vibration test.

[0064] During the testing process of the motherboard to be tested, the conveying chain plate 3 drives the motherboard to be tested to move to the bottom of the conveying chain plate 3 through the supporting block 51. At this time, the force block 78 is still in conflict with the side wall of the U-shaped frame 79; after the test of the motherboard to be tested is completed, the force block 78 is detached from the U-shaped frame 79, so that the force block 78, the support shaft 76, the telescopic plate 77, the execution block 72 and the clamping plate 57 are reset, so that the tested motherboard can be removed and the motherboard to be tested can be installed on the placement plate 52 for testing; by combining the above steps, the automated continuous testing of the motherboard to be tested can be realized.

[0065] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automotive electronic FCT test device, comprising two vertically arranged support plates (1), a plurality of equally spaced rotating shafts (2) being arranged on opposite sides of the two support plates (1) for co-rotation along the length direction, a transmission chain plate (3) being sleeved on the outer walls of the plurality of rotating shafts (2), a positioning motor (4) connected to any one of the rotating shafts (2) being arranged on the side wall of any one of the support plates (1) via a motor seat, and characterized in that: The outer wall of the conveying chain plate (3) is provided with a plurality of clamping units (5) for mounting the main board to be tested, the clamping units (5) comprising a supporting block (51) mounted on the outer wall of the conveying chain plate (3), a placement plate (52) being provided on a side of the supporting block (51) away from the conveying chain plate (3), a test unit (6) for performing a functional test on the main board to be tested being mounted on the placement plate (52), the test unit (6) comprising a vibration component (61) mounted between the supporting block (51) and the support plate (1) and for enhancing the test effect.

2. The automotive electronic FCT test device according to claim 1, characterized in that: The clamping unit (5) further comprises a supporting rubber strip (53) mounted in the middle of a side of the placement plate (52) away from the supporting block (51); a sliding groove (54) is provided on the side of the placement plate (52) away from the supporting block (51) near its four side edges; an actuating strip (55) is slidably connected inside the sliding groove (54); a supporting spring (56) is mounted between the actuating strip (55) and the inner wall of the sliding groove (54) away from the supporting rubber strip (53); and a clamping plate (57) is mounted on the side of the actuating strip (55) away from the placement plate (52).

3. The automotive electronic FCT test device according to claim 2, characterized in that: An elastic limiting strip (571) and a bottom supporting plate (572) are sequentially mounted on one side of the clamping plate (57) close to the supporting rubber strip (53). The elastic limiting strip (571) has an arc-shaped protrusion on one side close to the supporting rubber strip (53). The upper end of the bottom supporting plate (572) is flush with the upper end of the supporting rubber strip (53).

4. The automotive electronic FCT test device according to claim 1, characterized in that: The test unit (6) comprises a controller (62) and a test plug mounted on a side of the placement plate (52) away from the support block (51); the controller (62) and the test plug are electrically connected, and an indicator light (63) is also electrically connected to the controller (62); the test plugs are multiple and include plug connectors (64) for plugging into multiple different models of motherboards to be tested.

5. The automotive electronic FCT test device according to claim 1, characterized in that: The vibration assembly (61) comprises a positioning rod (611), and two positioning rods (611) are symmetrically arranged up and down along the conveying chain plate (3) on opposite sides of the two support plates (1), and a wave guide groove (612) is provided on one side of the positioning rod (611) close to the conveying chain plate (3); The side of the support block (51) away from the placement plate (52) is connected to the conveying chain plate (3) via a pad plate (511), a plurality of contraction spring rods (613) are installed between the support block (51) and the pad plate (511), and the side walls of the support block (51) close to the two support plates (1) are each provided with a support rod (614), and the support rod (614) is slidably docked inside the wave guide groove (612).

6. The automotive electronic FCT test device according to claim 5, characterized in that: The wave guide groove (612) is composed of a plurality of mutually connected inclined grooves, two adjacent inclined grooves are symmetrically arranged, and a guide groove (615) connected to the wave guide groove (612) is provided at the end of the positioning rod (611).

7. The automotive electronic FCT test device according to claim 1, characterized in that: The conveying chain plate (3) is composed of a plurality of link plates hinged to each other, and a plurality of supporting blocks (51) are distributed at intervals on the outer side walls of the plurality of link plates.

8. The automotive electronic FCT test device according to claim 1, characterized in that: It also includes a fastening unit (7) for further fixing and limiting the mainboard to be tested, the fastening unit (7) including a limiting sliding hole (71) opened in the middle of the supporting block (51), the limiting sliding hole (71) passing through the width direction of the supporting block (51), an execution block (72) slidingly penetrates inside the limiting sliding hole (71), a connecting block (73) is provided on the side of the execution block (72) away from the conveying chain plate (3), and a pull rope (74) is installed between the connection block (73) and the side of multiple execution strips (55) on the same supporting block (51) close to the supporting rubber strip (53).

9. The automotive electronic FCT test device according to claim 8, characterized in that: The outer wall of the conveying chain plate (3) is provided with a plurality of fixed blocks (75) spaced apart from the supporting blocks (51); the fixed blocks (75) are provided with linkage holes corresponding to the positions of the limiting sliding holes (71); a support shaft (76) is installed inside the linkage hole; two telescopic plates (77) are symmetrically rotatably sleeved on the outer wall of the support shaft (76); a side of the telescopic plate (77) away from the support shaft (76) is rotatably connected to the corresponding execution block (72).

10. The automotive electronic FCT test device according to claim 9, characterized in that: After any end of the support shaft (76) slides out to the outside of the fixed block (75), a force-bearing block (78) is installed thereon; a side wall of the support plate (1) close to the force-bearing block (78) is installed with a transverse U-shaped frame (79); the opening of the U-shaped frame (79) has two horizontal sections that are flush with the force-bearing block (78); the force-bearing block (78) and the U-shaped frame (79) are in sliding contact with each other; A limiting sleeve (70) is mounted on the outer wall of the fixed block (75) and is slidably sleeved on the outer wall of the support shaft (76).

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