Automatic testing device and method for communication mainboard

The communication motherboard is automatically clamped, positioned, and flipped by a gear, rack, and worm gear transmission system driven by a motor. This solves the problems of low testing efficiency and insufficient accuracy caused by manual operation in the existing technology, and improves the level of automation and comprehensiveness of testing.

CN121522420APending Publication Date: 2026-02-13SHANGHAI NANHUA ELECTRONICS
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Patent Information

Application Number
CN202511551868.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

In the current testing process for communication motherboards, clamping, positioning, and multi-angle testing rely on manual operation, resulting in low automation and insufficient testing efficiency, accuracy, and comprehensiveness.

Method used

A motor-driven gear rack and pinion transmission system is used to automate the clamping, positioning, and flipping of the communication motherboard. Combined with a moving board and limit components, this ensures the stability and accuracy of the motherboard during testing.

Benefits of technology

It improves the automation level of communication motherboard testing, ensures the stability and accuracy of testing, adapts to motherboards of different sizes and types, shortens testing time, reduces positioning errors, and improves testing efficiency and comprehensiveness.

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Abstract

The invention relates to the technical field of wireless communication and electronic testing, and discloses an automatic testing device of a communication mainboard, which comprises a workbench, the upper part of the workbench is fixedly connected with a motor II, the output end of the motor II is fixedly connected with a rotating shaft, and the outside of the rotating shaft is fixedly connected with a gear. The two sides of the lower portion of the gear are both connected with rack plates in a meshed mode, the left portions of the two rack plates are both fixedly connected with first L-shaped connecting plates, the upper portion of the workbench is fixedly connected with a containing table, the upper portion of the workbench is fixedly connected with a transverse plate, and the upper portion of the transverse plate is fixedly connected with a second L-shaped connecting plate. The third motor is started to drive the worm to rotate, the worm gear and the first transmission rod are made to rotate, the first transmission rod drives the clamping plate on one side to rotate, and the communication mainboard and the clamping plate on the other side are linked to rotate synchronously, so that the communication mainboard can be driven to turn over, the mainboard can be conveniently tested from multiple angles, and the test comprehensiveness is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication and electronic testing, in particular to an automatic testing device and method for a communication mainboard. BACKGROUND

[0002] As a core functional carrier of modern electronic devices, the circuit performance and structural integrity of the communication mainboard directly determine the quality and reliability of the terminal product. Therefore, during the product manufacturing process, comprehensive and accurate automatic testing of the communication mainboard is a key link to ensure product quality and improve production efficiency.

[0003] However, in the existing communication mainboard testing practice, the automation degree of the testing device used is generally not high, and the operation process still largely depends on manual intervention. During the testing preparation stage, the operator needs to manually place the communication mainboard on the testing table and perform alignment and clamping. This method not only has low efficiency, but also lacks flexibility in the clamps used, making it difficult to adapt to mainboards of different sizes and versions, resulting in poor universality. When changing production lines, the clamps need to be frequently adjusted or replaced. At the same time, the force and position of manual fixation are difficult to be highly consistent, which can easily cause the mainboard to produce a small displacement during testing due to unstable clamping, thereby affecting the accuracy of the test data.

[0004] Further, during the testing execution process, the positioning of the detection probe or visual module often requires manual assistance or manual adjustment. This operation method has low precision and repeatability, and is easily affected by the proficiency and working state of the operator. Especially when multi-point and large-scale inspection is required, repeated manual positioning significantly slows down the testing rhythm and brings uncertainty to the reliability of the test results.

[0005] It is particularly inconvenient that for comprehensive quality testing of the communication mainboard, multiple areas on its front, back, and even sides need to be covered. Under the existing technical conditions, this often means that the testing process needs to be interrupted, the mainboard needs to be manually removed from the clamp, flipped, reinstalled, aligned, clamped, and then the testing of the other side can continue. This series of tedious and repetitive operations constitutes the main time bottleneck in the entire testing process, which not only greatly restricts the overall efficiency of the test, but also significantly increases the risk of positioning errors introduced by secondary clamping, making it difficult for the test to meet the needs of modern large-scale production in terms of comprehensiveness and automation level, and there is obvious room for improvement. SUMMARY

[0006] The application aims to provide an automatic testing device and method for a communication mainboard, and solve the technical problem that the physical operations such as clamping and fixing, detection positioning and multi-angle testing of the mainboard in the existing communication mainboard testing process rely on manual operation and have low automation degree, thereby resulting in insufficient testing efficiency, precision and comprehensiveness.

[0007] The automatic testing device for a communication mainboard provided by the application comprises a workbench, a motor two is fixedly connected to the upper portion of the workbench, the output end of the motor two is fixedly connected with a rotating shaft, the outer portion of the rotating shaft is fixedly connected with a gear, the lower portion of the gear is meshingly connected with two rack plates, the left portion of the two rack plates is fixedly connected with an L-shaped connecting plate one, the upper portion of the workbench is fixedly connected with a placing table, the upper portion of the workbench is fixedly connected with a horizontal plate, the upper portion of the horizontal plate is fixedly connected with an L-shaped connecting plate two, the side of the L-shaped connecting plate one close to the L-shaped connecting plate two is fixedly connected with a moving plate, the bottom portion of the moving plate is fixedly connected with two limiting assemblies on both sides, the limiting assemblies are used for limiting the moving plate, and the side of the L-shaped connecting plate two close to the L-shaped connecting plate one is fixedly connected with a fixed plate.

[0008] Preferably, the upper portion of the workbench is fixedly connected with a positioning seat, the upper portion of the positioning seat is fixedly connected with a fixing frame, the right portion of the fixing frame is fixedly connected with a motor one, one end of a rotating rod is fixedly connected with the output end of the motor one, the other end of the rotating rod is fixedly connected with a rotating disc, the upper portion of the rotating disc is fixedly connected with one end of a movable supporting rod, the other end of the movable supporting rod is rotatably connected with a moving block, the outer portion of the moving block is fixedly connected with a testing assembly, and the testing assembly is used for testing the communication mainboard.

[0009] Preferably, the right portion of the fixed plate is fixedly connected with a motor three, the output end of the motor three is fixedly connected with a worm, the upper portion of the worm is meshingly connected with a worm wheel, the inner portion of the worm wheel is fixedly connected with a transmission rod one, the inner portion of the moving plate is rotatably connected with a transmission rod two, the opposite ends of the transmission rod one and the transmission rod two are fixedly connected with clamping plates, and the transmission rod one is rotatably connected in the inner portion of the fixed plate.

[0010] Preferably, the limiting assembly comprises a limiting block and a limiting rod, the two limiting blocks are fixedly connected on both sides of the bottom portion of the moving plate, and the two limiting blocks are slidingly connected on the outer portion of the limiting rod.

[0011] Preferably, the testing assembly comprises a connecting plate and a detection head, the connecting plate is fixedly connected on the outer portion of the moving block, and the detection head is fixedly connected on the bottom portion of the connecting plate.

[0012] Preferably, the two limiting rods are fixedly connected on both sides of the inner portion of the placing table, and the moving plate is slidingly connected on the upper portion of the placing table.

[0013] Preferably, the inner sides of the fixing frame are provided with sliding grooves, the bottom sides of the moving blocks are fixedly connected with sliding blocks, and the sliding blocks are slidingly connected in the sliding grooves.

[0014] Preferably, the connecting plate is slidingly connected to the outer side of the fixing frame, and the detection head is slidingly connected to the lower part of the fixing frame.

[0015] Preferably, the bottom sides of the two rack plates are fixedly connected with clamping blocks, and the clamping blocks are slidingly connected in the inner side of the workbench.

[0016] The automatic testing method of the communication mainboard comprises the following steps: S1, first, start the motor two, the output end of the motor two drives the rotating shaft and the gear to rotate, the gear rotation drives the rack plate to move, the rack plate moves to drive the L-shaped connecting plate one and the moving plate to move, the moving plate moves to drive the two limiting blocks to slide on the outside of the limiting rod, under the cooperation of the two limiting blocks, the moving plate moves to the direction of the fixed plate until the two clamping plates clamp the communication mainboard; S2, then, start the motor one, the output end of the motor one drives the rotating rod and the rotating disc to rotate, the rotating disc rotation drives the movable support rod to rotate, the movable support rod rotation drives the moving block to move, the moving block drives the sliding block to slide in the sliding groove, the moving block sliding drives the connecting plate and the detection head to move, so that the detection head moves left and right; S3, finally, during the test, the motor three can be started, the output end of the motor three drives the worm to rotate, the worm rotation drives the meshing connected worm gear to rotate, the worm gear rotation drives the transmission rod one to rotate, when the two clamping plates clamp the communication mainboard, the transmission rod one rotation drives the clamping plate on one side to rotate, so that the clamping plate on the other side rotates together with the communication mainboard, when the clamping plate on the other side rotates, it drives the transmission rod two to rotate in the inner side of the moving plate, so that the communication mainboard can be turned over.

[0017] To sum up, the present application has at least one of the following beneficial technical effects: 1. The present application drives the rotating shaft and the gear to rotate by starting the motor two, so that the rack plate moves, and then drives the L-shaped connecting plate one and the moving plate to move to the fixed plate until the clamping plate clamps the communication mainboard, which realizes that the communication mainboard can be quickly and accurately clamped and fixed, ensures that the communication mainboard remains stable during the test, can adapt to communication mainboards of different sizes and types, and improves the versatility of the equipment; 2. The present application drives the rotating rod and the rotating disc to rotate by starting the motor one, so that the movable support rod rotates, drives the moving block to slide, and then drives the connecting plate and the detection head to move left and right, which realizes that the detection head can be moved back and forth, can accurately control the position of the detection head, and improves the efficiency and accuracy of the test; 3. The application drives the worm to rotate by starting the motor, so that the worm gear and the transmission rod rotate, the transmission rod drives the one side clamping plate to rotate, and the communication mainboard and the other side clamping plate rotate synchronously, so that the communication mainboard can be flipped, the mainboard can be tested from multiple angles, and the comprehensiveness of the test is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the application; Figure 2 is a rear perspective view of the application; Figure 3 is a sectional view of the placement table of the application; Figure 4 is a left perspective view of the application; Figure 5 is Figure 2 is an enlarged view of A in the figure; Figure 6 is Figure 3 is an enlarged view of B in the figure; BRIEF DESCRIPTION OF DRAWINGS: 1, workbench; 2, fixed frame; 3, motor one; 4, turntable; 5, movable support rod; 6, moving block; 7, sliding block; 8, sliding slot; 9, connecting plate; 10, detection head; 11, placement table; 12, motor two; 13, rotating shaft; 14, gear; 15, rack plate; 16, clamping block; 17, L-shaped connecting plate one; 18, moving plate; 19, cross plate; 20, L-shaped connecting plate two; 21, fixed plate; 22, motor three; 23, worm; 24, worm gear; 25, transmission rod one; 26, transmission rod two; 27, clamping plate; 28, limiting block; 29, limiting rod; 30, positioning seat; 31, rotating rod. DETAILED DESCRIPTION

[0019] The following will be described in detail below in combination with the accompanying Figure 1 - the accompanying Figure 6 , the application will be further described in detail.

[0020] Embodiment: Refer to Figure 1 , Figure 3 and Figure 6The utility model provides an automation testing device of communication mainboard, including workbench 1, the upper portion fixed connection of workbench 1 has motor no. 2 12, the output of motor no. 2 12 fixed connection has the pivot 13, the outside fixed connection of pivot 13 has the gear 14, and the lower portion both sides of gear 14 are engaged to connect the rack plate 15, and the left part of two rack plates 15 is fixedly connected with L type connecting plate no. 1 17, and the upper portion fixed connection of workbench 1 has the placement table 11, and the upper portion fixed connection of workbench 1 has the crossbeam 19, and the upper portion fixed connection of crossbeam 19 has L type connecting plate no. 2 20, and the side fixed connection of L type connecting plate no. 1 17 is close to L type connecting plate no. 2 20 and has the moving plate 18, and the bottom both sides of moving plate 18 are fixedly connected with the limiting component, and limiting component is used for limiting moving plate 18, and the side fixed connection of L type connecting plate no. 2 20 is close to L type connecting plate no. 1 17 and has the fixed plate 21, and limiting component includes limiting block 28 and limiting rod 29, and two limiting blocks 28 are fixedly connected in the bottom both sides of moving plate 18, and two limiting blocks 28 are slidably connected in the outside of limiting rod 29, and two limiting rods 29 are fixedly connected in the inside both sides of placement table 11, and moving plate 18 is slidably connected in the upper portion of placement table 11, and the bottom of two rack plates 15 is fixedly connected with the clamping block 16, and two clamping blocks 16 are slidably connected in the inside of workbench 1.

[0021] After starting motor no. 2 12, the output of motor no. 2 12 drives pivot 13 rotation, and then drives gear 14 to rotate, and the rotation of gear 14 drives rack plate 15 to move along the linear track, along with the movement of rack plate 15, L type connecting plate no. 1 17 and moving plate 18 move synchronously, and the limiting block 28 of the bottom both sides of moving plate 18 slides in the outside of limiting rod 29, to ensure the accurate movement of moving plate 18 on the preset track, under the double cooperation of limiting block 28, moving plate 18 moves stably to the direction of fixed plate 21, until two clamping plates 27 firmly clamp the communication mainboard, ready for subsequent test work, and the placement table 11 provides a stable platform for the communication mainboard, to ensure the fixation during the test process.

[0022] Refer to Figure 1 and Figure 4The upper portion of the workbench 1 is fixedly connected with a positioning seat 30, the upper portion of the positioning seat 30 is fixedly connected with a fixed frame 2, the right portion of the fixed frame 2 is fixedly connected with a motor one 3, one end of a rotating rod 31 fixedly connected with the output end of the motor one 3, the other end of the rotating rod 31 is fixedly connected with a rotating disc 4, the upper portion of the rotating disc 4 is fixedly connected with one end of a movable supporting rod 5, the other end of the movable supporting rod 5 is rotatably connected with a moving block 6, the outer portion of the moving block 6 is fixedly connected with a testing assembly, the testing assembly is used for testing the communication mainboard, the testing assembly comprises a connecting plate 9 and a detection head 10, the connecting plate 9 is fixedly connected to the outer portion of the moving block 6, the detection head 10 is fixedly connected to the bottom of the connecting plate 9, the inner portion of the fixed frame 2 is provided with a sliding groove 8 on both sides, the bottom of the moving block 6 is fixedly connected with a sliding block 7 on both sides, the two sliding blocks 7 are slidably connected in the inner portion of the sliding groove 8, the connecting plate 9 is slidably connected to the outer portion of the fixed frame 2, and the detection head 10 is slidably connected to the lower portion of the fixed frame 2.

[0023] The workbench 1 serves as the basis of the whole device and provides a stable working platform, the positioning seat 30 provides support and positioning for the fixed frame 2, after the motor one 3 is started, the output end of the motor one 3 drives the rotating rod 31 to rotate, the rotating disc 4 connected to the other end of the rotating rod 31 rotates accordingly, the rotation of the rotating disc 4 drives the movable supporting rod 5 to rotate, thereby driving the moving block 6 to slide in the sliding groove 8 in the inner portion of the fixed frame 2, the sliding groove 8 is provided on both sides of the inner portion of the fixed frame 2 and provides a sliding path for the sliding block 7, the movement of the moving block 6 causes the connecting plate 9 and the detection head 10 fixed to the bottom of the moving block 6 to also move accordingly, and the detection head 10 is used to actually contact and detect the communication mainboard.

[0024] Referring to Figure 1 , Figure 2 and Figure 5 , the right portion of the fixed plate 21 is fixedly connected with a motor three 22, the output end of the motor three 22 is fixedly connected with a worm 23, the upper portion of the worm 23 is meshingly connected with a worm gear 24, the inner portion of the worm gear 24 is fixedly connected with a transmission rod one 25, the inner portion of the moving plate 18 is rotatably connected with a transmission rod two 26, the opposite ends of the transmission rod one 25 and the transmission rod two 26 are both fixedly connected with a clamping plate 27, and the transmission rod one 25 is rotatably connected in the inner portion of the fixed plate 21.

[0025] After the motor three 22 is started, the output end of the motor three 22 drives the worm 23 to rotate, the motor three 22 provides power to drive the movement of the clamping and overturning assembly, the worm 23 drives the meshingly connected worm gear 24 to rotate, the transmission rod one 25 connected in the inner portion of the worm gear 24 rotates accordingly, the two clamping plates 27 are respectively connected to the transmission rod one 25 and the transmission rod two 26 and are used for clamping the communication mainboard, when the clamping plate 27 clamps the communication mainboard, the rotation of the transmission rod one 25 drives the clamping plate 27 on one side and the communication mainboard to rotate together, thereby realizing the overturning of the communication mainboard through the rotation of the transmission rod two 26.

[0026] The application discloses an automatic testing method for a communication mainboard, and belongs to the field of communication mainboard testing. S1, first, start the motor two 12, the output end of the motor two 12 drives the rotating shaft 13 and the gear 14 to rotate, the gear 14 drives the rack plate 15 connected by engagement to move, the rack plate 15 drives the L-shaped connecting plate one 17 and the moving plate 18 to move when moving, the moving plate 18 drives the two limiting blocks 28 to slide outside the limiting rod 29, under the cooperation of the two limiting blocks 28, the moving plate 18 moves to the direction of the fixed plate 21, until the two clamping plates 27 clamp the communication mainboard; S2, then, start the motor one 3, the output end of the motor one 3 drives the rotating rod 31 and the rotating disc 4 to rotate, the rotating disc 4 drives the movable support rod 5 to rotate, the movable support rod 5 drives the moving block 6 to move, the moving block 6 drives the sliding block 7 to slide inside the sliding groove 8, the moving block 6 drives the connecting plate 9 and the detection head 10 to move, so that the detection head 10 moves left and right; S3, finally, during testing, the motor three 22 can be started, the output end of the motor three 22 drives the worm 23 to rotate, the worm 23 drives the worm gear 24 connected by engagement to rotate, the worm gear 24 drives the transmission rod one 25 to rotate, when the two clamping plates 27 clamp the communication mainboard, the transmission rod one 25 drives the clamping plate 27 on one side to rotate, so that the clamping plate 27 on the other side rotates together with the communication mainboard, when the clamping plate 27 on the other side rotates, the transmission rod two 26 rotates inside the moving plate 18, so that the communication mainboard can be turned over.

[0027] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not limited to the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An automated testing device for communication motherboards, characterized in that, The system includes a workbench (1), a motor (12) fixedly connected to the upper part of the workbench (1), a rotating shaft (13) fixedly connected to the output end of the motor (12), a gear (14) fixedly connected to the outside of the rotating shaft (13), rack plates (15) meshing with the lower sides of the gear (14), and L-shaped connecting plates (17) fixedly connected to the left sides of the two rack plates (15). A placement platform (11) is fixedly connected to the upper part of the workbench (1). (1) is fixedly connected to the upper part of a horizontal plate (19), and L-shaped connecting plate two (20) is fixedly connected to the upper part of the horizontal plate (19). A movable plate (18) is fixedly connected to the side of the L-shaped connecting plate one (17) close to the L-shaped connecting plate two (20). Limiting components are fixedly connected to both sides of the bottom of the movable plate (18). The limiting components are used to limit the movable plate (18). A fixed plate (21) is fixedly connected to the side of the L-shaped connecting plate two (20) close to the L-shaped connecting plate one (17).

2. The automated testing device for the communication motherboard according to claim 1, characterized in that, The upper part of the workbench (1) is fixedly connected to a positioning seat (30), the upper part of the positioning seat (30) is fixedly connected to a fixed frame (2), the right side of the fixed frame (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to one end of a rotating rod (31), the other end of the rotating rod (31) is fixedly connected to a turntable (4), the upper part of the turntable (4) is fixedly connected to one end of a movable support rod (5), the other end of the movable support rod (5) is rotatably connected to a moving block (6), and the outside of the moving block (6) is fixedly connected to a test component, which is used to test the communication motherboard.

3. The automated testing device for communication motherboards according to claim 1, characterized in that, The right side of the fixed plate (21) is fixedly connected to a motor three (22), the output end of the motor three (22) is fixedly connected to a worm gear (23), the upper part of the worm gear (23) is meshed with a worm wheel (24), the inside of the worm wheel (24) is fixedly connected to a transmission rod one (25), the inside of the moving plate (18) is rotatably connected to a transmission rod two (26), the opposite ends of the transmission rod one (25) and the transmission rod two (26) are both fixedly connected to a clamping plate (27), and the transmission rod one (25) is rotatably connected inside the fixed plate (21).

4. The automated testing device for the communication motherboard according to claim 1, characterized in that, The limiting component includes a limiting block (28) and a limiting rod (29). The two limiting blocks (28) are fixedly connected to the bottom sides of the moving plate (18), and the two limiting blocks (28) are slidably connected to the outside of the limiting rod (29).

5. The automated testing device for communication motherboards according to claim 2, characterized in that, The test assembly includes a connecting plate (9) and a detection head (10). The connecting plate (9) is fixedly connected to the outside of the moving block (6), and the detection head (10) is fixedly connected to the bottom of the connecting plate (9).

6. The automated testing device for the communication motherboard according to claim 4, characterized in that, Both of the limiting rods (29) are fixedly connected to the inside sides of the placement platform (11), and the moving plate (18) is slidably connected to the upper part of the placement platform (11).

7. The automated testing device for the communication motherboard according to claim 2, characterized in that, The fixed frame (2) has sliding grooves (8) on both sides inside, and the bottom sides of the moving block (6) are fixedly connected to sliders (7), and the two sliders (7) are slidably connected inside the sliding grooves (8).

8. The automated testing device for the communication motherboard according to claim 5, characterized in that, The connecting plate (9) is slidably connected to the outside of the fixed frame (2), and the detection head (10) is slidably connected to the lower part of the fixed frame (2).

9. The automated testing device for the communication motherboard according to claim 1, characterized in that, Both rack plates (15) are fixedly connected to the bottom of each rack plate (16), and both rack plates (16) are slidably connected inside the worktable (1).

10. An automated testing method for communication motherboards, characterized in that, Includes the following steps: S1. First, start motor two (12). The output end of motor two (12) drives the rotating shaft (13) and gear (14) to rotate. The rotation of gear (14) drives the meshing rack plate (15) to move. When the rack plate (15) moves, it drives the L-shaped connecting plate one (17) and the moving plate (18) to move. The movement of the moving plate (18) drives the two limit blocks (28) to slide outside the limit rod (29). With the cooperation of the two limit blocks (28), the moving plate (18) moves towards the fixed plate (21) until the two clamping plates (27) clamp the communication motherboard. S2. Then, start motor one (3). The output end of motor one (3) drives the rotating rod (31) and the turntable (4) to rotate. The rotation of the turntable (4) drives the movable support rod (5) to rotate. The rotation of the movable support rod (5) drives the moving block (6) to move. The moving block (6) drives the slider (7) to slide inside the slide groove (8). The sliding of the moving block (6) drives the connecting plate (9) and the detection head (10) to move, so that the detection head (10) moves left and right. S3. Finally, during testing, motor three (22) can be started. The output end of motor three (22) drives the worm (23) to rotate. The rotation of the worm (23) drives the meshing worm wheel (24) to rotate. The rotation of the worm wheel (24) drives the transmission rod one (25) to rotate. When the two clamping plates (27) clamp the communication motherboard, the rotation of the transmission rod one (25) drives the clamping plate (27) on one side to rotate, so that the clamping plate (27) on the other side and the communication motherboard rotate together. When the clamping plate (27) on the other side rotates, it drives the transmission rod two (26) to rotate inside the moving plate (18), so that the communication motherboard can be flipped.