Circuit board testing device and testing method

Abstract

The present invention provides a circuit board testing device and a testing method, which relate to the technical field of circuit board testing, and include a testing body; support rods are fixedly welded at the four corners of the top surface of the testing body; a mobile testing board is fixedly connected to the bottom surface of the push rod of the electric drive moving tube; a testing connection plate is installed on the bottom surface of the mobile testing board; the outer sleeve of the support rod is connected to the moving tube; the outer sleeve of the moving tube is connected to the limiting tube; a first sliding groove and a second sliding groove are provided on the limiting tube; the first sliding groove is internally slidingly connected to a first clamping assembly; the second sliding groove is internally slidingly connected to a second clamping assembly, and when the first push plate pushes the moving clamping block to move left and right, and the second push plate pushes the moving clamping block to move forward and backward, the circuit board to be tested can be clamped, and the clamping is automatically realized in the process of the electric drive moving tube moving downward, thereby solving the problem that the non-fixed block is difficult to realize automatic clamping when positioning and placing the circuit board for testing.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and in particular to a circuit board testing device and a testing method. Background Art

[0002] Circuit boards can be mass-produced with fixed circuits and optimize the layout of electrical appliances. They have the characteristics of high wiring density, light weight, and thin thickness. They are mainly composed of pads, mounting holes, components, etc. During the production process of circuit boards, the circuit boards need to be tested for connection. Currently, needle beds are mostly used for testing. During the test, the circuit board needs to be placed on the test plane. After the circuit board is tested by the needle bed, the circuit board is removed and the next circuit board is tested. The fixed block is used to position the circuit board during the test, which is inconvenient for taking and placing the circuit board. The non-fixed block is used to position and place the circuit board for testing, which makes it difficult to achieve automatic clamping. Moreover, when the card pin contacts the test point during the test, it is easy for the circuit board to deviate, resulting in reduced test accuracy. When testing different circuit boards, a needle bed test board with different test points needs to be used. When replacing the needle bed, it is difficult to place the disassembled parts one by one for assembly of the replaced parts. The mobile clamping assembly clamps the circuit board, and after the test is completed, it is difficult to automatically reset to facilitate the removal of the circuit board and the placement of the next circuit board. Summary of the invention

[0003] In view of this, the present invention provides a circuit board testing device and a testing method. When the first push plate pushes the movable clamp to move left and right, and the second push plate pushes the movable clamp to move forward and backward, the circuit board to be tested can be clamped, and the clamping is automatically achieved during the downward movement of the electrically driven movable tube.

[0004] The present invention provides a circuit board testing device and a testing method, which specifically include: a testing body; support rods are fixedly welded at the four corners of the top surface of the testing body, an electric drive moving tube is installed on the bottom surface of the top panel of the testing body, a drawer is pulled out and clamped at the bottom of the testing body, a testing plane is provided on the testing body, and the internal electrical testing parts of the testing body are connected to the external computer circuit, and a fixed positioning block is fixedly welded on the testing plane, and three moving clamping blocks are placed on the testing plane; a moving test board is fixedly connected to the bottom surface of the push rod of the electric drive moving tube; a test connecting plate is installed on the bottom surface of the moving test board; a moving tube is sleeved on the outside of the supporting rod; a pressure rod clamping hole is opened on the moving tube, and a limiting tube is sleeved on the outside of the moving tube; the limiting tube is fixedly connected to the testing plane of the testing body, and a first sliding groove and a second sliding groove are opened on the limiting tube; a pressure rod is fixedly clamped inside the pressure rod clamping hole; a first clamping assembly is slidably clamped inside the first sliding groove; a second clamping assembly is slidably clamped inside the second sliding groove.

[0005] Optionally, the height of the first slide groove is higher than the height of the topmost pressure rod clamping hole, the height of the second slide groove is lower than the height of the first slide groove, the two left and right limiting tubes on the front side are mirror-symmetrical, and the front and rear limiting tubes on the right side are mirror-symmetrical, and a rectangular slide groove is opened at the inner bottom of the limiting tube, and the limiting slider is slidably engaged inside the rectangular slide groove.

[0006] Optionally, the second clamping assembly includes a second slider and a second push block, the second slider is slidably clamped in the second slide groove by welding a rod, the top surface of the second push block is an inclined structure and has a groove, the second slider is slidably clamped in the groove, the bottom surface of the second push block is welded with a second sliding plate, and the side door of the second push block is welded with a second push plate, and the end surface of the second sliding plate is connected to the inside of the guide slide groove in the front and rear directions by a spring.

[0007] Optionally, a fixed pressure rod is welded on the moving tube, the directions of the fixed pressure rod and the pressure rod are perpendicular to each other, the fixed pressure rod passes through and is movably clamped inside the second slide groove, the pressure rod passes through and is movably clamped inside the first slide groove, a return spring is connected to the bottom of the moving tube, the bottom end of the return spring is fixedly connected to the inner bottom surface of the test body, a limiting slider is fixedly welded to the outer side of the bottom of the moving tube, the limiting slider is movably clamped inside the test body, and the sliding distance of the limiting slider is greater than the moving distance of the electric drive moving tube.

[0008] Optionally, the first clamping assembly includes a first slider and a first push block, the first slider is slidably clamped in the first slide groove by welding a rod, the top surface of the first push block is an inclined structure and has a groove, the first slider is slidably clamped in the groove, the bottom surface of the first push block is welded with a first sliding plate, and the side of the first push block is welded with a first push plate, and the side of the first sliding plate is connected to the inside of the guide slide groove in the left and right directions through a spring.

[0009] Optionally, a push plate slot is provided on the outer side surface of the movable clamping block, and the interior of the push plate slot is slidably engaged with the first push plate and the second push plate.

[0010] Optionally, a handle groove is provided on the front end face of the test body, the depth of the handle groove is greater than the thickness of the front end panel of the drawer, the handle groove is higher than the top edge height of the drawer, a connecting rod is fixedly welded on the bottom surface of the movable test plate, two circular through holes that are axially crossed but staggered in height are provided inside the connecting rod, and a guide groove is provided on the test plane of the test body.

[0011] Optionally, a cylinder is fixedly welded to the top surface of the test connecting plate, a connecting card hole is opened on the cylinder, a card rod is clamped inside the connecting card hole, and the direction and size of the connecting card hole are the same as the two circular through holes inside the connecting rod, and a test card pin is connected to the bottom surface of the test connecting plate.

[0012] Optionally, a fixed partition is fixedly bonded to the inside of the drawer, a movable partition is clamped on the fixed partition in a vertical direction of the fixed partition, a clamping slot is opened on the movable partition, and the clamping slot is clamped on the fixed partition.

[0013] The present invention discloses a testing method for a circuit board testing device, comprising the following steps:

[0014] 1) According to the test points of the circuit board, install the adapted test connection board to the bottom of the connecting rod, and the card rod passes through the connecting card hole and the two circular through holes inside the connecting rod;

[0015] 2) Place the circuit board to be tested on the test plane of the test body, with one corner of the circuit board against the inner side of the fixed clamp;

[0016] 3) After the electric drive moving tube is started by the controller, the moving tube is pressed down, which drives the fixed pressing rod and the pressing rod to move downward, pushes the first slider and the second slider to move downward, and automatically clamps the circuit board through the first push plate and the second push plate;

[0017] 4) After the test pin at the bottom of the test connection board contacts the test point, the circuit board is tested. After the test is completed, the electric drive moving tube moves up, and the spring inside the guide slide pushes the first clamping assembly and the second clamping assembly to reset, and the circuit board is taken out.

[0018] Beneficial Effects

[0019] Compared with the conventional testing device, the circuit board testing device according to each embodiment of the present invention can clamp the circuit board to be tested when the first push plate pushes the movable clamp block to move left and right, and the second push plate pushes the movable clamp block to move forward and backward, and the clamping is automatically realized during the downward movement of the electrically driven movable tube;

[0020] In addition, the fixed clamp provides a calibration base point to ensure that the test card pin is located directly above the test point of the circuit board. The mobile clamp clamps the circuit board to improve the accuracy of the test contact.

[0021] In addition, after the movable partition is connected to the fixed partition through the card slot, the interior of the drawer can be divided into compartments, and the movable partition can be pushed in the front and back directions, so that the size of the divided space can be adjusted at any time, so that parts of different sizes or lengths can be stored, and screws, nuts and other parts can be stored in order when disassembling test connection plates and other parts to assist assembly;

[0022] In addition, when the moving tube drives the pressing rod to move downward, the circuit board to be tested is automatically clamped in the front-to-back and left-to-right directions by the first clamping assembly and the second clamping assembly for testing. After the moving tube moves upward, the first sliding plate with the first push block can be pushed to reset by the spring, and the second sliding plate with the second push block can be pushed to reset. The moving clamping block can then be moved at will to take out the circuit board and place the next circuit board to be tested on the test plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0024] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0025] In the attached picture:

[0026] Figure 1 A schematic diagram of the front side view structure of the test subject according to the present invention is shown;

[0027] Figure 2 It shows a schematic structural diagram of a test subject according to the present invention;

[0028] Figure 3 A schematic structural diagram of a drawer according to the present invention is shown;

[0029] Figure 4 A schematic structural diagram of a second clamping assembly according to the present invention is shown;

[0030] Figure 5 It shows a schematic structural diagram of a first clamping assembly according to the present invention;

[0031] Figure 6 A schematic diagram of a partial cross-sectional structure of a test body according to the present invention is shown;

[0032] Figure 7 It shows a schematic structural diagram of a mobile test board according to the present invention;

[0033] Figure 8 It shows a schematic structural diagram of a test connection plate according to the present invention;

[0034] Fig. 9 A schematic diagram of the structure of the position limiting tube according to the present invention is shown;

[0035] Fig.10 A schematic diagram of the structure of the moving tube according to the present invention is shown;

[0036] Fig.11 It is shown that according to the present invention Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0037] Reference numerals list

[0038] 1. Test body; 101. Support rod; 102. Handle slot; 103. Electric drive moving tube; 1031. Moving test board; 10311. Connecting rod; 104. Guide slide slot;

[0039] 2. Drawer; 201. Fixed partition; 202. Movable partition; 2021. Card slot;

[0040] 3. Moving tube; 301. Press rod clamping hole; 302. Press rod; 303. Return spring; 304. Limit slider;

[0041] 4. Position limiting tube; 401. first slide groove; 402. second slide groove;

[0042] 5. Test connection plate; 501. Clamp rod; 5011. Connection clamp hole; 502. Test clamp pin;

[0043] 6. First clamping assembly; 61. First slider; 62. First push block; 6201. First sliding plate; 6202. First push plate;

[0044] 7. Second clamping assembly; 71. Second sliding block; 72. Second push block; 7201. Second sliding plate; 7202. Second push plate;

[0045] 8. Move the clamping block; 801. Push the board into the slot. DETAILED DESCRIPTION

[0046] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0047] Example: Please refer to Figures 1 to 11 :

[0048] The present invention proposes a circuit board testing device and a testing method, comprising: a testing body 1; support rods 101 are fixedly welded at the four corners of the top surface of the testing body 1, an electric drive moving tube 103 is installed on the bottom surface of the top panel of the testing body 1, a drawer 2 is pulled out and connected at the bottom of the testing body 1, a testing plane is provided on the testing body 1, and the internal electrical test parts of the testing body 1 are connected to the external computer circuit, and a fixed positioning block is fixedly welded on the testing plane, and three moving clamping blocks 8 are placed on the testing plane; the bottom surface of the push rod of the electric drive moving tube 103 is fixedly connected to the moving test Plate 1031; a test connecting plate 5 is installed on the bottom surface of the movable test plate 1031; a movable tube 3 is sleeved on the outside of the support rod 101; a pressure rod clamping hole 301 is provided on the movable tube 3, and a limiting tube 4 is sleeved on the outside of the movable tube 3; the limiting tube 4 is fixedly connected to the test plane of the test body 1, and a first slide groove 401 and a second slide groove 402 are provided on the limiting tube 4; a pressure rod 302 is fixedly clamped inside the pressure rod clamping hole 301; a first clamping component 6 is slidably clamped inside the first slide groove 401; a second clamping component 7 is slidably clamped inside the second slide groove 402.

[0049] In addition, if attached Figure 4 As shown, a push plate slot 801 is provided on the outer side surface of the movable clamp 8, and the internal sliding of the push plate slot 801 is connected with the first push plate 6202 and the second push plate 7202. When the first push plate 6202 pushes the movable clamp 8 to move left and right, and the second push plate 7202 pushes the movable clamp 8 to move forward and backward, the circuit board to be tested can be clamped, and the clamping is automatically realized during the downward movement of the electric-driven movable tube 103, and the fixed clamp provides a calibration base point.

[0050] In addition, if attached Fig.10 and attached Fig.11 As shown, a fixed pressure rod is welded on the moving tube 3, and the directions of the fixed pressure rod and the pressing rod 302 are perpendicular to each other. The fixed pressure rod passes through and is movably clamped in the second slide groove 402, and the pressing rod 302 passes through and is movably clamped in the first slide groove 401. A reset spring 303 is connected to the bottom of the moving tube 3, and the bottom end of the reset spring 303 is fixedly connected to the inner bottom surface of the test body 1. A limit slider 304 is fixedly welded on the outer side of the bottom of the moving tube 3, and the limit slider 304 is movably clamped in the interior of the test body 1. The sliding distance of the limit slider 304 is greater than the moving distance of the electric drive moving tube 103. When the electric drive moving tube 103 is started and the push rod moves downward, it touches and presses the top surface of the moving tube 3 to push the moving tube 3 downward, and the pressing rod 302 moves downward synchronously to press and push the first clamping assembly 6 or the second clamping assembly 7 downward to realize synchronous transmission of force. When there is no pressure from the electric drive moving tube 103 on the top of the moving tube 3, the moving tube 3 is pushed upward by the reset spring 303 to achieve reset, so as to carry out the test of the next circuit board.

[0051] In addition, if attached Figure 2 and attached Figure 7 As shown, a handle groove 102 is provided on the front face of the test body 1, the depth of the handle groove 102 is greater than the thickness of the front panel of the drawer 2, and the handle groove 102 is higher than the top edge height of the drawer 2. A connecting rod 10311 is fixedly welded to the bottom face of the movable test plate 1031, and two circular through holes that are axially crossed but staggered in height are provided inside the connecting rod 10311. A guide slot 104 is provided on the test plane of the test body 1. The handle slot 102 can be used to more easily pull out the drawer 2 to take or store parts, which conforms to the principle of ergonomics, and the connecting rod 10311 can be assembled with the test connecting plate 5 through the circular through hole. The guide slot 104 provides a moving space and a guiding basis for the first clamping assembly 6 and the second clamping assembly 7, so that the clamping assembly can be reset for the next circuit board test.

[0052] In addition, if attached Figure 3 As shown, a fixed partition 201 is fixedly bonded to the interior of the drawer 2, and a movable partition 202 is clamped on the vertical direction of the fixed partition 201 and the fixed partition 201, and a slot 2021 is opened on the movable partition 202, and the slot 2021 is clamped on the fixed partition 201. After the movable partition 202 is clamped to the fixed partition 201 through the slot 2021, the interior of the drawer 2 can be divided into grids, and the movable partition 202 can be pushed in the front and back directions, so that the size of the divided space can be adjusted at any time, so that parts of different sizes or lengths can be stored.

[0053] In addition, if attached Fig. 9 As shown, the height of the first slide groove 401 is higher than the height of the topmost pressure rod clamping hole 301, and the height of the second slide groove 402 is lower than the height of the first slide groove 401. The two left and right limiting tubes 4 on the front side are mirror-symmetrical, and the two front and rear limiting tubes 4 on the right side are mirror-symmetrical. A rectangular slide groove is provided at the inner bottom of the limiting tube 4, and the limiting slider 304 is slidably engaged inside the rectangular slide groove. The first slide groove 401 and the second slide groove 402 can be used to guide the movement of the first clamping component 6 and the second clamping component 7, so as to realize the positioning and clamping of the circuit board to be tested in the left and right directions and the front and rear directions, and the limiting tube 4 can cooperate with the test body 1 to limit the upper movement of the moving tube 3 to the highest position, so that the initial position of the moving tube 3 is adjustable.

[0054] In addition, if attached Figure 4 and attached Fig.11As shown, the first clamping assembly 6 includes a first slider 61 and a first push block 62. The first slider 61 is slidably clamped in the first slide groove 401 by welding a rod. The top surface of the first push block 62 is an inclined structure and has a groove. The first slider 61 is slidably clamped in the groove. The bottom surface of the first push block 62 is welded with a first sliding plate 6201, and the side of the first push block 62 is welded with a first push plate 6202. The side of the first sliding plate 6201 is connected to the inside of the guide slide groove 104 in the left and right directions through a spring. When the moving tube After the pressing rod 302 is driven to move downward, the first sliding block 61 is pressed downward to push the first pushing block 62 to move in the left and right directions, so that the first pushing plate 6202 can push the movable clamping block 8 in the left and right directions to clamp the circuit board to be tested in the left and right directions for testing. After the movable tube 3 moves upward, the first sliding plate 6201 can be pushed to reset with the first pushing block 62 through the spring, and the movable clamping block 8 can be moved rightward at will to take out the circuit board and place the next circuit board to be tested on the test plane.

[0055] In addition, if attached Figure 4 The second clamping assembly 7 comprises a second sliding block 71 and a second pushing block 72. The second sliding block 71 is slidably engaged with the second sliding groove 402 by welding a rod. The top surface of the second pushing block 72 is an inclined structure and has a groove. The second sliding block 71 is slidably engaged with the second sliding plate (7201) welded to the bottom surface of the second pushing block 72, and the side door of the second pushing block 72 is welded to the second pushing plate 7202. The end surface of the second sliding plate 7201 is connected to the inside of the guide sliding groove 104 in the front-back direction by a spring. When the moving tube 3 drives the fixed pressing rod to move downward, the second sliding block 71 is pressed downward to push the second pushing block 72 to move in the front-back direction. In this way, the second pushing plate 7202 can be brought to push the moving clamping block 8 in the front-back direction to clamp the circuit board to be tested in the front-back direction for testing. After the moving tube 3 moves up, the second sliding plate 7201 is pushed to reset with the second pushing block 72 by the spring, and the moving clamping block 8 can move forward and backward at will to take out the circuit board and place the next circuit board to be tested on the test plane.

[0056] In addition, if attached Figure 8As shown, a cylinder is fixedly welded on the top surface of the test connection plate 5, and a connecting card hole 5011 is opened on the cylinder. A clamping rod 501 is clamped inside the connecting card hole 5011, and the direction and size of the connecting card hole 5011 are the same as the two circular through holes inside the connecting rod 10311. A test clamping pin 502 is connected to the bottom surface of the test connection plate 5. After the circuit board to be tested is placed on the test plane, the first clamping component 6 and the second clamping component 7 cooperate with the fixed clamping block to clamp and fix the circuit board. After the test connection plate 5 is moved downward by the electric drive moving tube 103, the test clamping pin 502 is driven to test the circuit board. The test results are displayed on the computer to determine whether the circuit board meets the factory standards. According to the different test point designs of the circuit board, after the clamping rod 501 is pulled out, the test connection plate 5 can be replaced to improve the applicability.

[0057] The present invention discloses a testing method for a circuit board testing device, comprising the following steps:

[0058] 1. According to the test points of the circuit board, install the adapted test connection board 5 to the bottom of the connecting rod 10311, and the clamping rod 501 passes through the connecting clamping hole 5011 and the two circular through holes inside the connecting rod 10311;

[0059] 2. Place the circuit board to be tested on the test plane of the test body 1, with one corner of the circuit board against the inner side of the fixed clamp;

[0060] 3. After the electric drive moving tube 103 is started by the controller, the moving tube 3 is pressed down, driving the fixed pressing rod and the pressing rod 302 to move downward, pushing the first slider 61 and the second slider 71 to move downward, and automatically clamping the circuit board through the first push plate 6202 and the second push plate 7202;

[0061] 4. After the test pin 502 at the bottom of the test connection plate 5 contacts the test point, the circuit board is tested. After the test is completed, the electric drive moving tube 103 moves up, and the spring inside the guide slide groove 104 pushes the first clamping assembly 6 and the second clamping assembly 7 to reset, and the circuit board is taken out to complete the test.

[0062] The specific usage and function of this embodiment are as follows:

[0063] In the present invention, according to the test point of the circuit board, the adapted test connecting plate 5 is installed to the bottom of the connecting rod 10311, and the clamping rod 501 passes through the connecting clamping hole 5011 and the two circular through holes inside the connecting rod 10311 to complete the assembly of the test connecting plate 5, and the circuit board to be tested is placed on the test plane of the test body 1, and one corner of the circuit board is pressed against the inner side of the fixed clamping block. After the electric drive moving tube 103 is moved, the moving tube 3 is pressed down, driving the fixed pressure rod and the pressure rod 302 to move downward, pushing the first slider 61 and the second slider 71 to move downward, and automatically clamping the circuit board through the first push plate 6202 and the second push plate 7202. After the test is completed, the electric drive moving tube 103 is moved up, and the spring inside the guide slide groove 104 pushes the first clamping assembly 6 and the second clamping assembly 7 to reset, and the circuit board is taken out, and this reciprocating process is repeated to test the circuit board.

Claims

1. Circuit board testing device, including: A test body (1); characterized in that support rods (101) are fixedly welded at the four corners of the top surface of the test body (1), an electric drive moving tube (103) is installed on the bottom surface of the top panel of the test body (1), a drawer (2) is pull-out and snap-connected at the bottom of the test body (1), a test plane is provided on the test body (1), and the internal electrical test parts of the test body (1) are connected to an external computer circuit, a fixed positioning block is fixedly welded on the test plane, and three moving clamps (8) are placed on the test plane; The bottom surface of the push rod of the electrically driven moving tube (103) is fixedly connected to a moving test plate (1031); the bottom surface of the moving test plate (1031) is installed with a test connection plate (5); the outer portion of the support rod (101) is sleeved with the moving tube (3); the moving tube (3) is provided with a pressure rod clamping hole (301), and the outer portion of the moving tube (3) is sleeved with a limit tube (4); the limit tube (4) is fixedly connected to the test plane of the test body (1), and the limit tube (4) is provided with a first slide groove (401) and a second slide groove (402); the inner portion of the pressure rod clamping hole (301) is fixedly clamped with a pressure rod (302); the inner portion of the first slide groove (401) is slidably clamped with a first clamping assembly (6); the inner portion of the second slide groove (402) is slidably clamped with a second clamping assembly (7); The first clamping assembly (6) comprises a first slider (61) and a first push block (62); the first slider (61) is slidably clamped in the first slide groove (401) by welding a rod; the top surface of the first push block (62) is an inclined structure and has a groove, and the first slider (61) is slidably clamped in the groove; the bottom surface of the first push block (62) is welded with a first sliding plate (6201), and the side surface of the first push block (62) is welded with a first push plate (6202); the side surface of the first sliding plate (6201) is connected to the inside of the guide slide groove (104) in the left and right directions through a spring; The second clamping assembly (7) comprises a second slider (71) and a second push block (72); the second slider (71) is slidably clamped in the second slide groove (402) by welding a rod; the top surface of the second push block (72) is an inclined structure and has a groove, and the second slider (71) is slidably clamped in the groove; the bottom surface of the second push block (72) is welded with a second sliding plate (7201), and the side door of the second push block (72) is welded with a second push plate (7202); the end surface of the second sliding plate (7201) is connected to the inside of the guide slide groove (104) in the front-rear direction by a spring; A push plate clamping groove (801) is provided on the outer side surface of the movable clamping block (8), and the interior of the push plate clamping groove (801) is slidably clamped to the first push plate (6202) and the second push plate (7202).

2. The circuit board testing device according to claim 1, characterized in that: The front end surface of the test body (1) is provided with a handle groove (102), the depth of the handle groove (102) is greater than the thickness of the front end panel of the drawer (2), and the handle groove (102) is higher than the top edge height of the drawer (2). A connecting rod (10311) is fixedly welded to the bottom surface of the movable test plate (1031), and two circular through holes that are axially intersecting but staggered in height are provided inside the connecting rod (10311). A guide groove (104) is provided on the test plane of the test body (1).

3. The circuit board testing device according to claim 1, characterized in that: A fixed partition (201) is fixedly bonded inside the drawer (2), a movable partition (202) is clamped on the fixed partition (201) in a vertical direction of the fixed partition (201), a clamping groove (2021) is provided on the movable partition (202), and the clamping groove (2021) is clamped on the fixed partition (201).

4. The circuit board testing device according to claim 2, characterized in that: A fixed pressure rod is welded to the moving tube (3), the fixed pressure rod and the pressure rod (302) are perpendicular to each other, the fixed pressure rod passes through and is movably engaged inside the second slide groove (402), the pressure rod (302) passes through and is movably engaged inside the first slide groove (401), a return spring (303) is connected to the bottom of the moving tube (3), the bottom end of the return spring (303) is fixedly connected to the inner bottom surface of the test body (1), a limit slider (304) is fixedly welded to the outer side of the bottom of the moving tube (3), the limit slider (304) is movably engaged inside the test body (1), and the sliding distance of the limit slider (304) is greater than the moving distance of the electric drive moving tube (103).

5. The circuit board testing device according to claim 4, characterized in that: The height of the first slide groove (401) is higher than the height of the topmost pressure rod clamping hole (301), and the height of the second slide groove (402) is lower than the height of the first slide groove (401). The two left and right limiting tubes (4) on the front side are mirror-symmetrical, and the two front and rear limiting tubes (4) on the right side are mirror-symmetrical. A rectangular slide groove is provided at the inner bottom of the limiting tube (4), and the limiting slider (304) is slidably engaged inside the rectangular slide groove.

6. The circuit board testing device according to claim 2, characterized in that: A cylinder is fixedly welded to the top surface of the test connection plate (5), a connection clamping hole (5011) is provided on the cylinder, a clamping rod (501) is clamped inside the connection clamping hole (5011), and the direction and size of the connection clamping hole (5011) are the same as the two circular through holes inside the connection rod (10311), and a test clamping pin (502) is connected to the bottom surface of the test connection plate (5).

7. The testing method of the circuit board testing device according to any one of claims 1 to 6, characterized in that: The following steps are involved: 1) According to the test points of the circuit board, an adapted test connection plate (5) is installed at the bottom of the connecting rod (10311), and the clamping rod (501) passes through the connecting clamping hole (5011) and two circular through holes inside the connecting rod (10311); 2) Place the circuit board to be tested on the test plane of the test body (1), with one corner of the circuit board against the inner side of the fixed clamp; 3) After the electric drive moving tube (103) is started by the controller, the moving tube (3) is pressed downward, driving the fixed pressing rod and the pressing rod (302) to move downward, pushing the first sliding block (61) and the second sliding block (71) to move downward, and automatically clamping the circuit board by the first pushing plate (6202) and the second pushing plate (7202); 4) After the test pin (502) at the bottom of the test connection plate (5) contacts the test point, the circuit board is tested. After the test is completed, the electric drive moving tube (103) moves upward, and the spring inside the guide slide groove (104) pushes the first clamping component (6) and the second clamping component (7) to reset, and the circuit board is taken out.

Images