LED circuit board detection device

Abstract

The application discloses a kind of LED circuit board detection devices, it is related to LED circuit board detection technical field, including: workbench and fixedly connected in the support seat and fixed seat of the top of workbench;Probe, the probe is provided with multiple, multiple probe is set in the top of support seat;LED circuit board, the LED circuit board is placed in the top of probe;Adaptive fitting mechanism is between the probe and the support seat, the adaptive fitting mechanism includes second fixed sleeve fixedly connected in the top of support seat.The application is by being provided with adaptive fitting mechanism, when LED circuit board is pressed in the uneven of probe part, multiple probe adaptively can be contacted on LED circuit board, so that LED circuit board and multiple probe contact stable, avoid the uneven surface of LED circuit board to cause probe and the contact of point to be measured to be bad, so as to improve the accuracy of LED circuit board detection.

Description

Technical Field

[0001] This invention relates to the field of LED circuit board testing technology, specifically an LED circuit board testing device. Background Technology

[0002] LED circuit board is short for printed circuit board. After the LED circuit board is manufactured, it needs to be inspected.

[0003] Currently, LED circuit board testing is generally performed manually and using testing equipment. Some testing equipment places the LED circuit board to be tested on probes on top of a testing table, then uses a clamping device to press the LED circuit board firmly before power-on testing. However, during implementation, due to the unevenness of the LED circuit board surface caused by the manufacturing process, some probes cannot make close contact with the LED circuit board when it is pressed against the probes. Therefore, there is a high possibility of significant errors during the power-on testing of LED circuit boards. To address this issue, we provide an LED circuit board testing device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an LED circuit board testing device to address the problem that the uneven surface of LED circuit boards during the manufacturing process causes some probes to fail to make close contact with the LED circuit boards when they are pressed against the probe tops, resulting in significant errors during the power-on testing of LED circuit boards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an LED circuit board testing device, comprising: a worktable and a support base and a fixed base fixedly connected to the top of the worktable; multiple probes, the multiple probes being disposed on the top of the support base; an LED circuit board, the LED circuit board being placed on top of the probes; an adaptive bonding mechanism located between the probes and the support base, the adaptive bonding mechanism comprising a second fixed sleeve fixedly connected to the top of the support base, a rectangular block slidably connected to the inner side of the second fixed sleeve, a second T-shaped block fixedly connected to one side of the rectangular block, a one-way limiting component disposed between the other side of the rectangular block and the second fixed sleeve, and a limiting groove matching the second T-shaped block being opened on the inner side of the second fixed sleeve, the rectangular block being slidably connected to the second fixed sleeve through the second T-shaped block, the probes being disposed on the top of the rectangular block, an adaptive adjuster disposed between the rectangular block and the probes, and a third auxiliary spring installed between the rectangular block and the second fixed sleeve.

[0006] As a further embodiment of the present invention: a hydraulic cylinder is installed on the inner side of the fixed base, and a pressure plate is fixedly connected to the output end of the hydraulic cylinder.

[0007] As a further embodiment of the present invention: the one-way limiting component includes a plurality of triangular blocks fixedly connected to the other side of the rectangular block, the plurality of triangular blocks being equidistantly distributed on the other side of the rectangular block, a second sliding rod being slidably connected to the inner side of the second fixed sleeve, a fixed frame being fixedly connected to one end of the second sliding rod, a roller being rotatably connected to the inner side of the fixed frame, and the roller being engaged between two of the triangular blocks, one end of the second sliding rod penetrating to the outside of the second fixed sleeve and being fixedly connected to a fixed seat, and a connecting spring being installed between the fixed seat and the second fixed sleeve.

[0008] As a further embodiment of the present invention: the one-way limiting component further includes a first spherical rod fixedly connected to one side of the fixed base, a suspension rod is provided on one side of the first spherical rod, a first arched surface is provided on the inner side of the suspension rod, and the first arched surface is provided above the first spherical rod, and a power pushing unit is provided between the top of the suspension rod and the support base.

[0009] As a further embodiment of the present invention: the power propulsion unit includes a first fixed sleeve fixedly connected to the top of the support base, a first sliding rod slidably connected to the inner side of the first fixed sleeve, a first connecting rod fixedly connected to the top of the first sliding rod, a second connecting rod fixedly connected to the inner side of the first connecting rod, and the suspension rod fixedly connected to the bottom of the second connecting rod. A first auxiliary spring is installed between the first sliding rod and the first fixed sleeve, and a pressure rod is fixedly connected to the bottom of the pressure plate, and the pressure rod abuts against the top of the first connecting rod.

[0010] As a further embodiment of the present invention: the adaptive positioner includes a first T-shaped block slidably connected to the inner side of the rectangular block and the second T-shaped block, a suspension seat is fixedly connected to the bottom of the rectangular block, and a power spring is installed between the suspension seat and the rectangular block.

[0011] As a further embodiment of the present invention: the adaptive positioner further includes a stand fixedly connected to one side of the second fixed sleeve, the inner side of the stand is provided with a second arched surface, one end of the first T-shaped block is fixedly connected to a second spherical rod, and the second spherical rod initially abuts against the inclined surface of the second arched surface.

[0012] As a further aspect of the present invention: an auxiliary groove is provided on the inner side of the first T-shaped block, and a second auxiliary spring is installed between the second spherical rod and the auxiliary groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By setting an adaptive bonding mechanism, when the LED circuit board is placed on the probe, the output end of the hydraulic cylinder drives the pressure plate to move downward to squeeze the LED circuit board. When the LED circuit board is under pressure, it will push multiple probes to squeeze a third auxiliary spring for adaptive contraction. When the LED circuit board is pressed on the probe, the multiple probes can adaptively abut against the LED circuit board, so that the contact between the LED circuit board and the multiple probes is stable. This avoids the unevenness of the LED circuit board surface causing poor contact between the probe and the test point, thereby improving the accuracy of LED circuit board testing.

[0015] 2. By setting a one-way limiting component, when the probe pushes the rectangular block to squeeze the third auxiliary spring downward, the rectangular block drives multiple triangular blocks to move synchronously. This pushes the roller away from the rectangular block through the inclined surface at the bottom of the triangular block. When the roller separates from one of the triangular blocks, it is pushed to reset under the action of the connecting spring, so that the roller will lock back between the two triangular blocks to limit the rectangular block. This reduces the hard squeezing force of the third auxiliary spring on the LED circuit board, thus ensuring that the probe head is in constant pressure against the test point of the LED circuit board. At the same time, the one-way limiting lock position means that even if the pressure plate is slightly lifted or the device vibrates, the probe will not reset due to the elastic force of the third auxiliary spring, avoiding detection interruption or poor contact, thereby improving the overall practicality of the device.

[0016] 3. By setting up the cooperation of parts such as the first spherical rod, when the pressure plate initially moves downward, before the pressure plate contacts the LED circuit board, the first arched surface contacts the first spherical rod, pushing the first spherical rod to make a horizontal reciprocating movement. When the first arched surface separates from the first spherical rod, the pressure plate contacts the LED circuit board. When the pressure plate moves upward to reset, the first arched surface contacts the first spherical rod again. When the first spherical rod moves along the lowest point to the highest point of the first arched surface, it can push the first spherical rod to drive the roller to move away from the triangular block through the fixed seat. When the first spherical rod moves to the highest point of the first arched surface, the rectangular block is no longer limited, and the probe is pushed to reset by the third auxiliary spring. This allows the device to continuously perform unidirectional retraction operation during use, thereby improving the overall practicality of the device.

[0017] 4. By setting an adaptive positioner, when the probe is subjected to compressive force and moves downward, the second spherical rod moves from the lowest point to the highest point of the second arched surface, thereby pushing the second spherical rod through the first T-shaped block to drive the probe to move laterally. When the second spherical rod moves from the highest point to the lowest point of the second arched surface, the probe is reset under the action of the power spring. This allows the probe to automatically change its position before testing after initially contacting foreign objects or solder slag on the LED circuit board surface. This ensures that the probe can stably contact the part of the LED circuit board that needs to be tested, reducing the influence of solder slag or foreign objects during contact, thereby improving the accuracy of subsequent testing.

[0018] 5. By setting up a second auxiliary spring and other parts, the elastic coefficient of the second auxiliary spring is greater than that of the power spring. When the probe is obstructed during its lateral movement, the second ball rod can squeeze the second auxiliary spring to achieve adaptive contraction, thereby preventing the probe from being rigidly squeezed after being obstructed, thus improving the overall practicality of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the top structure of the support base of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the LED circuit board after placement according to the present invention;

[0022] Figure 4 This is a schematic diagram of the adaptive bonding mechanism of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a cross-sectional view of the first fixing sleeve of the present invention;

[0025] Figure 7 This is a schematic diagram of the second fixed sleeve structure of the present invention;

[0026] Figure 8 This is a cross-sectional view of the second fixing sleeve of the present invention;

[0027] Figure 9 For the present invention Figure 8 Enlarged view at point B in the middle;

[0028] Figure 10 This is a cross-sectional view of the first T-shaped block of the present invention.

[0029] In the diagram: 1. Workbench; 2. Support base; 3. Fixed base; 4. Hydraulic cylinder; 5. Pressure plate; 6. First fixed sleeve; 7. Pressure rod; 8. First connecting rod; 9. Second fixed sleeve; 10. LED circuit board; 11. First sliding rod; 12. Second connecting rod; 13. Probe; 14. Rectangular block; 15. Suspension rod; 16. First spherical rod; 17. Fixed base; 18. Second sliding rod; 19. Connecting spring; 20. First arched surface; 21. First auxiliary spring; 22. Stand; 23. Second spherical rod; 24. First T-shaped block; 25. Suspension base; 26. Power spring; 27. Second arched surface; 28. Second T-shaped block; 29. ​​Triangular block; 30. Roller; 31. Fixed frame; 32. Auxiliary groove; 33. Second auxiliary spring; 34. Third auxiliary spring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0032] Please see Figures 1-10This embodiment provides an LED circuit board testing device, including: a workbench 1 and a support base 2 and a fixed base 3 fixedly connected to the top of the workbench 1; multiple probes 13, which are disposed on the top of the support base 2; an LED circuit board 10, which is placed on top of the probes 13; and an adaptive bonding mechanism located between the probes 13 and the support base 2. The adaptive bonding mechanism includes a second fixing sleeve 9 fixedly connected to the top of the support base 2, a rectangular block 14 slidably connected to the inner side of the second fixing sleeve 9, and one side of the rectangular block 14 fixedly connected to... A second T-shaped block 28 is connected to the rectangular block 14. A one-way limiting component is provided between the other side of the rectangular block 14 and the second fixed sleeve 9. A limiting groove matching the second T-shaped block 28 is opened on the inner side of the second fixed sleeve 9. The rectangular block 14 is slidably connected to the second fixed sleeve 9 through the second T-shaped block 28. The probe 13 is set on the top of the rectangular block 14. An adaptive adjuster is provided between the rectangular block 14 and the probe 13. A third auxiliary spring 34 is installed between the rectangular block 14 and the second fixed sleeve 9. A hydraulic cylinder 4 is installed on the inner side of the fixed seat 3. A pressure plate 5 is fixedly connected to the output end of the hydraulic cylinder 4.

[0033] First, after the LED circuit board 10 is placed on the probe 13, the output end of the hydraulic cylinder 4 drives the pressure plate 5 to move downward to squeeze the LED circuit board 10. When the LED circuit board 10 is under pressure, it will push multiple probes 13 to squeeze a third auxiliary spring 34 to adaptively contract. When the LED circuit board 10 is pressed against the probe 13 and there is unevenness, multiple probes 13 can adaptively abut against the LED circuit board 10, thereby making the contact between the LED circuit board 10 and multiple probes 13 stable. This avoids the unevenness of the LED circuit board 10 surface causing poor contact between the probes 13 and the test point, thus improving the accuracy of the detection of the LED circuit board 10.

[0034] Please see Figures 4 to 10The one-way limiting component includes multiple triangular blocks 29 fixedly connected to the other side of the rectangular block 14. The multiple triangular blocks 29 are evenly distributed on the other side of the rectangular block 14. A second sliding rod 18 is slidably connected to the inner side of the second fixed sleeve 9. A fixing frame 31 is fixedly connected to one end of the second sliding rod 18. A roller 30 is rotatably connected to the inner side of the fixing frame 31, and the roller 30 is locked between two triangular blocks 29. A fixing seat 17 is fixedly connected to one end of the second sliding rod 18 through to the outside of the second fixed sleeve 9. A connecting spring 19 is installed between the fixing seat 17 and the second fixed sleeve 9. The one-way limiting component also includes a first spherical rod 16 fixedly connected to one side of the fixing seat 17. A suspension rod 1 is provided on one side of the first spherical rod 16. 5. A first arched surface 20 is provided on the inner side of the suspension rod 15, and the first arched surface 20 is located above the first spherical rod 16. A power push unit is provided between the top of the suspension rod 15 and the support base 2. The power push unit includes a first fixed sleeve 6 fixedly connected to the top of the support base 2. A first sliding rod 11 is slidably connected to the inner side of the first fixed sleeve 6. A first connecting rod 8 is fixedly connected to the top of the first sliding rod 11. A second connecting rod 12 is fixedly connected to the inner side of the first connecting rod 8. The suspension rod 15 is fixedly connected to the bottom of the second connecting rod 12. A first auxiliary spring 21 is installed between the first sliding rod 11 and the first fixed sleeve 6. A pressure rod 7 is fixedly connected to the bottom of the pressure plate 5, and the pressure rod 7 abuts against the top of the first connecting rod 8.

[0035] When the probe 13 pushes the rectangular block 14 to compress the third auxiliary spring 34 and move downwards, the rectangular block 14 drives multiple triangular blocks 29 to move synchronously. This pushes the roller 30 away from the rectangular block 14 through the inclined surface at the bottom of the triangular block 29. When the roller 30 separates from one of the triangular blocks 29, it is pushed to reset by the connecting spring 19. This causes the roller 30 to re-engage between the two triangular blocks 29 to limit the rectangular block 14, thereby reducing the hard squeezing force exerted by the third auxiliary spring 34 on the LED circuit board 10. This ensures that the head of the probe 13 contacts the test point of the LED circuit board 10 with constant pressure. At the same time, the unidirectional limit lock position ensures that even if the pressure plate 5 is slightly lifted or the device vibrates, the probe 13 will not reset due to the elastic force of the third auxiliary spring 34, avoiding detection interruption or poor contact. This improves the overall practicality of the device.

[0036] When the pressure plate 5 initially moves downward, before it contacts the LED circuit board 10, the first arched surface 20 contacts the first spherical rod 16, pushing the first spherical rod 16 to move laterally back and forth once. When the first arched surface 20 separates from the first spherical rod 16, the pressure plate 5 contacts the LED circuit board 10. When the pressure plate 5 moves upward to reset, the first arched surface 20 contacts the first spherical rod 16 again. When the first spherical rod 16 moves from the lowest point to the highest point of the first arched surface 20, it can push the first spherical rod 16 to drive the roller 30 to move away from the triangular block 29 through the fixed seat 17. When the first spherical rod 16 moves to the highest point of the first arched surface 20, the rectangular block 14 is no longer limited, and the probe 13 is reset by the third auxiliary spring 34. This allows the device to continuously perform unidirectional retraction operations during use, thereby improving the overall practicality of the device.

[0037] Please see Figures 7-10 The adaptive positioner includes a first T-shaped block 24 slidably connected to the inner side of the rectangular block 14 and the second T-shaped block 28. A suspension seat 25 is fixedly connected to the bottom of the rectangular block 14. A power spring 26 is installed between the suspension seat 25 and the rectangular block 14. The adaptive positioner also includes a stand 22 fixedly connected to one side of the second fixed sleeve 9. A second arched surface 27 is provided on the inner side of the stand 22. A second ball rod 23 is fixedly connected to one end of the first T-shaped block 24. The second ball rod 23 initially abuts against the inclined surface of the second arched surface 27. An auxiliary groove 32 is opened on the inner side of the first T-shaped block 24. A second auxiliary spring 33 is installed between the second ball rod 23 and the auxiliary groove 32.

[0038] When probe 13 moves downward under pressure, the second spherical rod 23 moves from the lowest point to the highest point of the second arched surface 27, thereby pushing the second spherical rod 23 to drive probe 13 to move laterally through the first T-shaped block 24. When the second spherical rod 23 moves from the highest point to the lowest point of the second arched surface 27, probe 13 is reset under the action of the power spring 26. This allows probe 13 to automatically change its position before detection after initially contacting foreign objects or solder slag on the surface of LED circuit board 10. This enables probe 13 to stably contact the part of LED circuit board 10 that needs to be detected, reducing the influence of solder slag or foreign objects during contact, thereby improving the accuracy of subsequent detection.

[0039] The elastic coefficient of the second auxiliary spring 33 is greater than that of the dynamic spring 26. When the probe 13 is obstructed during its lateral movement, the second ball rod 23 can compress the second auxiliary spring 33 to achieve adaptive contraction, thereby preventing the probe 13 from being rigidly compressed after being obstructed, thus improving the overall practicality of the device.

[0040] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An LED circuit board testing device, characterized in that, include: The workbench (1) and the support base (2) and the fixed base (3) fixedly connected to the top of the workbench (1); Probe (13), multiple probes (13) are provided, and multiple probes (13) are provided on the top of the support (2); LED circuit board (10), the LED circuit board (10) is placed on top of the probe (13); An adaptive fitting mechanism is located between the probe (13) and the support base (2). The adaptive fitting mechanism includes a second fixed sleeve (9) fixedly connected to the top of the support base (2). A rectangular block (14) is slidably connected to the inner side of the second fixed sleeve (9). A second T-shaped block (28) is fixedly connected to one side of the rectangular block (14). A one-way limiting component is provided between the other side of the rectangular block (14) and the second fixed sleeve (9). A limiting groove matching the second T-shaped block (28) is opened on the inner side of the second fixed sleeve (9). The rectangular block (14) is slidably connected to the second fixed sleeve (9) through the second T-shaped block (28). The probe (13) is located on the top of the rectangular block (14). An adaptive adjuster is provided between the rectangular block (14) and the probe (13). A third auxiliary spring (34) is installed between the rectangular block (14) and the second fixed sleeve (9). The adaptive positioner includes a first T-shaped block (24) slidably connected to the inner side of the rectangular block (14) and the second T-shaped block (28), a suspension seat (25) is fixedly connected to the bottom of the rectangular block (14), and a power spring (26) is installed between the suspension seat (25) and the rectangular block (14). The adaptive positioner also includes a stand (22) fixedly connected to one side of the second fixed sleeve (9). The inner side of the stand (22) is provided with a second arched surface (27). One end of the first T-shaped block (24) is fixedly connected to a second spherical rod (23), and the second spherical rod (23) initially abuts against the inclined surface of the second arched surface (27). An auxiliary groove (32) is provided on the inner side of the first T-shaped block (24), and a second auxiliary spring (33) is installed between the second spherical rod (23) and the auxiliary groove (32).

2. The LED circuit board testing device according to claim 1, characterized in that, A hydraulic cylinder (4) is installed on the inner side of the fixed base (3), and a pressure plate (5) is fixedly connected to the output end of the hydraulic cylinder (4).

3. The LED circuit board testing device according to claim 2, characterized in that, The one-way limiting component includes a plurality of triangular blocks (29) fixedly connected to the other side of the rectangular block (14). The plurality of triangular blocks (29) are evenly distributed on the other side of the rectangular block (14). A second sliding rod (18) is slidably connected to the inner side of the second fixed sleeve (9). A fixed frame (31) is fixedly connected to one end of the second sliding rod (18). A roller (30) is rotatably connected to the inner side of the fixed frame (31), and the roller (30) is stuck between two of the triangular blocks (29). A fixed seat (17) is fixedly connected to one end of the second sliding rod (18) through to the outside of the second fixed sleeve (9). A connecting spring (19) is installed between the fixed seat (17) and the second fixed sleeve (9).

4. The LED circuit board testing device according to claim 3, characterized in that, The one-way limiting assembly also includes a first spherical rod (16) fixedly connected to one side of the fixed seat (17). A suspension rod (15) is provided on one side of the first spherical rod (16). A first arched surface (20) is provided on the inner side of the suspension rod (15), and the first arched surface (20) is located above the first spherical rod (16). A power pushing unit is provided between the top of the suspension rod (15) and the support seat (2).

5. The LED circuit board testing device according to claim 4, characterized in that, The power drive unit includes a first fixed sleeve (6) fixedly connected to the top of the support base (2), a first sliding rod (11) slidably connected to the inner side of the first fixed sleeve (6), a first connecting rod (8) fixedly connected to the top of the first sliding rod (11), a second connecting rod (12) fixedly connected to the inner side of the first connecting rod (8), and the suspension rod (15) fixedly connected to the bottom of the second connecting rod (12). A first auxiliary spring (21) is installed between the first sliding rod (11) and the first fixed sleeve (6). A pressure rod (7) is fixedly connected to the bottom of the pressure plate (5), and the pressure rod (7) abuts against the top of the first connecting rod (8).

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