Rigid PCB depth testing device

Abstract

The utility model relates to the technical field of circuit board detection, and discloses a rigid PCB depth testing device which comprises a detection table, a rotating mechanism is installed at the middle end of the top of the detection table, an electric push rod is fixedly connected to the top of the periphery of the rotating mechanism, and a laser displacement sensor is fixedly connected to the driving end of the electric push rod. A plurality of placement bins are uniformly formed in the periphery of the detection table, sliding grooves are formed in the two sides of the interior of each placement bin, sliding rods are fixedly connected to the interiors of the sliding grooves, and sliding blocks are slidably connected to the outer walls of the sliding rods. According to the utility model, the rotating mechanism drives the laser displacement sensor to rotate at a fixed angle each time so as to make full use of the idle time of the test process, thereby improving the test efficiency, and through the rapid replacement of the placing plate, the size of the placing groove is enabled to be adaptive to the circuit boards detected in corresponding batches, so that the circuit boards are accurately positioned, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board detection, in particular to a device for deeply testing a rigid PCB circuit board. Background Art

[0002] The PCB rigid circuit board is a provider of electrical connections for electronic components. It can be divided into single-sided boards, double-sided boards, four-layer boards, six-layer boards and other multi-layer circuit boards according to the number of circuit board layers. It is mainly composed of circuits and drawings, dielectric layers, holes, solder mask inks, silk screen printing, and surface treatment. Among them, the through holes can conduct circuits between two or more layers. Larger through holes are used for component plug-ins. In addition, non-through holes are usually used for surface mount positioning and fixing screws during assembly. During the process of drilling holes in the circuit board, the depth requirements of the holes are extremely strict. Therefore, after the holes are drilled, a detection process for the hole depth is required.

[0003] At present, when PCB rigid circuit board manufacturers test the depth of blind holes in circuit boards, most of them only focus on accuracy and ignore the problem of testing efficiency. Workers can only place one circuit board at a time, and the waiting process cannot prepare for the next circuit board to be detected, wasting time and resulting in low testing efficiency. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a device for deeply testing a rigid PCB circuit board, aiming to improve the problem that the waiting time for testing cannot be fully utilized in the prior art, thus affecting the testing efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A device for deeply testing a rigid PCB circuit board, including a detection table, a rotating mechanism is installed in the middle of the top of the detection table, an electric push rod is fixedly connected to the top periphery of the rotating mechanism, a laser displacement sensor is fixedly connected to the driving end of the electric push rod, a plurality of placement bins are evenly opened on the periphery of the detection table, sliding grooves are opened on both sides inside the placement bins, sliding rods are fixedly connected inside the sliding grooves, sliders are slidably connected to the outer walls of the sliding rods, springs are arranged outside the sliding rods, the top ends of the springs are fixedly connected to the bottom sides of the sliders, and a placement plate is arranged between the two sliders.

[0006] As a further description of the above technical solution:

[0007] The rotation mechanism includes a driven rotating shaft, a driven bevel gear is fixedly connected to the middle side of the outer part of the driven rotating shaft, the driven bevel gear is meshed with a driving bevel gear, a driving rotating shaft is fixedly connected to the side of the driving bevel gear away from the driven bevel gear, one end of the driving rotating shaft away from the driving bevel gear is rotatably connected to a vertical plate, the bottom side of the vertical plate is fixedly connected to the top of the detection table, a stepping motor is installed on the side of the vertical plate away from the driving rotating shaft, the driving end of the stepping motor penetrates through the vertical plate and is fixedly connected to the driving rotating shaft, and the electric push rod is installed on the top of the outer circumference of the driven rotating shaft.

[0008] As a further description of the above technical solution:

[0009] An L-shaped clamping part is fixedly connected to the side wall of the placement plate, and the L-shaped clamping part is inserted into the top of the sliding block.

[0010] As a further description of the above technical solution:

[0011] Threaded through holes are formed on both sides of the placement bin at the top of the detection table, and the threaded through holes penetrate into the inside of the sliding groove.

[0012] As a further description of the above technical solution:

[0013] A placement groove is arranged on the top of the placement plate.

[0014] As a further description of the above technical solution:

[0015] Pressure heads are fixedly connected to the four corners of the inner top side of the placement bin, and rubber soft pads are arranged on the bottom sides of the pressure heads.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to the outside of the placement plate.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the laser displacement sensor is driven to rotate by a fixed angle each time through the rotation mechanism to perform depth testing on the PCB circuit boards in the placement bins at different positions. During the testing process, workers can place the circuit boards in the idle placement bins to prepare for detection, making full use of time and improving the testing efficiency.

[0020] 2. In the utility model, the placement plate can be quickly inserted and removed through the L-shaped clamping part and the sliding block, which is convenient for replacing the placement plate, so that the size of the placement groove adapts to the circuit boards to be detected in the corresponding batches, enabling the circuit boards to be accurately positioned and improving the detection accuracy. Description of the Drawings

[0021] Figure 1A perspective view of a depth testing device for a rigid PCB circuit board proposed by the present utility model;

[0022] Figure 2 A schematic structural view of a placement plate of a depth testing device for a rigid PCB circuit board proposed by the present utility model;

[0023] Figure 3 A schematic structural view of a placement bin of a depth testing device for a rigid PCB circuit board proposed by the present utility model.

[0024] Legend description:

[0025] 1. Detection table; 2. Driven rotating shaft; 3. Electric push rod; 4. Laser displacement sensor; 5. Driven bevel gear; 6. Driving bevel gear; 7. Driving rotating shaft; 8. Vertical plate; 9. Stepper motor; 10. Placement bin; 11. Slide groove; 12. Slide block; 13. Slide rod; 14. Spring; 15. Placement plate; 16. L-shaped clamping part; 17. Pressing head; 18. Threaded through hole; 19. Placement groove. Specific implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Refer to Figures 1 - 3, an embodiment provided by the present utility model: a rigid PCB circuit board depth testing device, including a detection table 1. A rotation mechanism is installed in the middle of the top of the detection table 1. The rotation mechanism includes a driven rotating shaft 2. A driven bevel gear 5 is fixedly connected to the middle side of the outer part of the driven rotating shaft 2. The driven bevel gear 5 is meshed with a driving bevel gear 6. A driving rotating shaft 7 is fixedly connected to the side of the driving bevel gear 6 away from the driven bevel gear 5. One end of the driving rotating shaft 7 away from the driving bevel gear 6 is rotatably connected to a vertical plate 8. The bottom side of the vertical plate 8 is fixedly connected to the top of the detection table 1. A stepping motor 9 is installed on the side of the vertical plate 8 away from the driving rotating shaft 7. The driving end of the stepping motor 9 penetrates through the vertical plate 8 and is fixedly connected to the driving rotating shaft 7. An electric push rod 3 is installed on the top of the outer circumference of the driven rotating shaft 2. The top of the outer circumference of the rotation mechanism is fixedly connected to the electric push rod 3. The driving end of the electric push rod 3 is fixedly connected to a laser displacement sensor 4. The laser displacement sensor 4 has high precision and can improve the testing precision. A plurality of placement bins 10 are evenly opened on the outer circumference of the detection table 1. Sliding grooves 11 are opened on both sides of the inside of the placement bin 10. A sliding rod 13 is fixedly connected to the inside of the sliding groove 11. A slider 12 is slidably connected to the outer wall of the sliding rod 13. A spring 14 is arranged outside the sliding rod 13. The top end of the spring 14 is fixedly connected to the bottom side of the slider 12. A placement plate 15 is arranged between the two sliders 12; Place the rigid PCB circuit board in the placement groove 19, loosen the handle of the placement plate 15, under the elastic driving force of the spring 14, the slider 12 drives the placement plate 15 to move upward until it stops moving when it encounters the pressing head 17. At the same time, the stepping motor 9 drives the driving rotating shaft 7 and the driving bevel gear 6 to rotate. The driving bevel gear 6 drives the driven bevel gear 5 and the driven rotating shaft 2 to rotate, and then drives the electric push rod 3 and the laser displacement sensor 4 to rotate at a fixed angle at a uniform speed. The driving end of the electric push rod 3 drives the laser displacement sensor 4 to reach the detection position. When the laser displacement sensor 4 detects the circuit board in the corresponding placement bin 10, the worker can pull the placement plate 15 downward to take out the circuit board in the placement groove 19 and replace it with an untested PCB circuit board until the next depth test. Through the above steps, the testing efficiency is improved.

[0028] An L-shaped clamping part 16 is fixedly connected to the side wall of the placement plate 15. The L-shaped clamping part 16 is inserted into the top of the slider 12. Lift the placement plate 15 upward, and the L-shaped clamping part 16 disengages from the insertion hole of the slider 12. The placement plate 15 is disassembled, which is convenient to replace with a circuit board size that meets the batch, and is convenient for the adapted placement groove 19 to position the circuit board, avoiding the influence of the over-large size of the placement groove 19 on the positioning of the tested circuit board, and improving the detection accuracy.

[0029] Threaded through holes 18 are provided on both sides of the top of the detection table 1 and are located inside the chute 11. The threaded rod is rotated into the threaded through hole 18 until it abuts against the top of the slider 12, so that the slider 12 is in a proper position, preventing the slider 12 from moving upward under the action of the spring 14 and affecting the replacement of the placement plate 15.

[0030] A placement groove 19 is provided on the top of the placement plate 15. The size of the placement groove 19 can be designed in different sizes to adapt to PCB circuit boards of different detection batches, facilitating the accurate positioning of the circuit board position and improving the detection accuracy.

[0031] At the four corners of the inner top side of the placement bin 10, pressing heads 17 are fixedly connected for pressing the circuit board to fix the position of the circuit board. A rubber soft pad is provided on the bottom side of the pressing head 17 to prevent damage to the circuit board when pressing it.

[0032] A handle is fixedly connected to the outside of the placement plate 15, facilitating the operation of workers.

[0033] Working principle: Place the rigid PCB circuit board in the placement groove 19, release the handle of the placement plate 15, and under the elastic driving force of the spring 14, the slider 12 drives the placement plate 15 to move upward until it stops moving when it encounters the pressing head 17. At the same time, the stepping motor 9 drives the active rotating shaft 7 and the active bevel gear 6 to rotate. The active bevel gear 6 drives the driven bevel gear 5 and the driven rotating shaft 2 to rotate, and further drives the electric push rod 3 and the laser displacement sensor 4 to rotate at a fixed angle at a constant speed. The driving end of the electric push rod 3 drives the laser displacement sensor 4 to reach the detection position. When the laser displacement sensor 4 finishes detecting the circuit board in the placement bin 10 at the corresponding position, the worker can pull the placement plate 15 downward to take out the circuit board in the placement groove 19 and replace it with an untested PCB circuit board until the next in-depth test. Through the above steps, the test efficiency is improved. In addition, rotate the threaded rod into the threaded through hole 18 until it abuts against the top of the slider 12, so that the slider 12 is in a proper position. Then lift the placement plate 15 upward, and the L-shaped clamping member 16 disengages from the insertion hole of the slider 12, and the placement plate 15 is disassembled, facilitating the replacement with a circuit board size that conforms to the batch, and facilitating the adapted placement groove 19 for positioning the circuit board, avoiding the placement groove 19 having too large a size and affecting the positioning of the test circuit board, and improving the detection accuracy.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rigid PCB circuit board depth testing device, comprising a testing platform (1), characterized in that: A rotating mechanism is installed at the middle of the top of the detection platform (1), an electric push rod (3) is fixedly connected to the top of the outer periphery of the rotating mechanism, a laser displacement sensor (4) is fixedly connected to the driving end of the electric push rod (3), a plurality of placement bins (10) are evenly arranged on the outer periphery of the detection platform (1), both sides of the interior of the placement bins (10) are provided with slide grooves (11), a slide rod (13) is fixedly connected to the interior of the slide groove (11), a slider (12) is slidably connected to the outer wall of the slider (13), a spring (14) is arranged on the outside of the slider (13), the top end of the spring (14) is fixedly connected to the bottom side of the slider (12), and a placement plate (15) is arranged between the two sliders (12).

2. A rigid PCB circuit board depth testing device according to claim 1, characterized in that: The rotating mechanism comprises a driven rotating shaft (2), a driven bevel gear (5) is fixedly connected to the outer middle side of the driven rotating shaft (2), the driven bevel gear (5) is meshingly connected to the driving bevel gear (6), the driving bevel gear (6) is fixedly connected to the driving rotating shaft (7) on the side away from the driven bevel gear (5), the driving rotating shaft (7) is rotatably connected to the end of the driving rotating shaft (7) away from the driving bevel gear (6), the bottom side of the vertical plate (8) is fixedly connected to the top of the detection platform (1), the side of the vertical plate (8) away from the driving rotating shaft (7) is installed with a stepping motor (9), the driving end of the stepping motor (9) passes through the vertical plate (8) and is fixedly connected to the driving rotating shaft (7), and the electric push rod (3) is installed on the outer periphery of the driven rotating shaft (2).

3. A rigid PCB circuit board depth testing device according to claim 1, characterized in that: The side wall of the placement plate (15) is fixedly connected with an L-shaped clamp (16), and the L-shaped clamp (16) is plugged into the top of the slide block (12).

4. A rigid PCB circuit board depth testing device according to claim 1, characterized in that: The top of the detection platform (1) is located on both sides of the placement bin (10) and is provided with threaded through holes (18), and the threaded through holes (18) penetrate into the interior of the slide groove (11).

5. A rigid PCB circuit board depth testing device according to claim 1, characterized in that: The top of the placement plate (15) is provided with a placement groove (19).

6. A rigid PCB circuit board depth testing device according to claim 1, characterized in that: The four corners of the internal top side of the placement bin (10) are all fixedly connected with a pressure head (17), and a rubber cushion is arranged on the bottom side of the pressure head (17).

7. A rigid PCB circuit board depth testing device according to claim 1, characterized in that: A handle is fixedly connected to the outer side of the placement plate (15).

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