PCB performance detection device

Abstract

The utility model relates to the technical field of PCB production, in particular to a PCB performance detection device, which comprises a fixed frame, a mounting frame is fixedly mounted at the bottom of the fixed frame, a detection bottom plate is arranged at the top of the mounting frame, and elastic reset mechanisms are mounted at four corners of an inner cavity of the fixed frame. Mounting grooves are formed in the left side and the right side of an inner cavity of the fixed frame, and movable pressing and holding mechanisms are mounted in inner cavities of the mounting grooves. According to the utility model, the elastic reset mechanism is arranged and has the advantage of elastic support, and under the assistance of the reset spring, the bearing block supports the PCB to be automatically located at the upper position in the fixed frame, so that the PCB can be conveniently taken by a worker; through the arrangement of the detection bottom plate, the detection top plate, the movable hold-down mechanism and the mounting groove, the double-sided testing device has the advantage of double-sided testing, the detection top plate can move downwards to position and hold down the top of the PCB, double-sided testing processing can be carried out simultaneously when the PCB moves downwards to be in contact with the detection bottom plate, and the overall processing efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB production, in particular to a PCB performance detection device. Background Art

[0002] PCB, also known as printed circuit board, is an important electronic component. It is the support of electronic components and the provider of electrical connections for electronic components. In the actual production and processing process, in order to ensure the functional integrity of PCB, a detection device will be used to perform power-on detection on the PCB.

[0003] After searching, the patent number is CN219369934U, and the name is a utility model of a PCB function automatic detection device, which includes a detection table and a detection frame fixedly set on the detection table. Through research and analysis, it is found that although the double-station turntable design is adopted, the placement and automatic detection of PCB boards can be carried out simultaneously, thereby effectively improving the detection efficiency of PCB boards. However, there are still the following shortcomings to a certain extent.

[0004] For example, the device cannot perform double-sided testing on PCBs. During the actual testing process, the PCB needs to be manually taken out, turned over, and put down. There are many manual intervention steps, the operation time is long, and it does not have the function of elastic support. When taking out the PCB, it is in contact with the test surface, and manual removal is more laborious and has certain limitations. In order to solve the above technical problems, we have designed a PCB performance testing device. Utility Model Content

[0005] The utility model aims to provide a PCB performance detection device with the advantages of double-sided testing and convenient taking, which solves the problem that the device cannot perform double-sided testing on the PCB, and the PCB needs to be manually taken out, turned over and put down, with many manual intervention steps and a long operation time, and the device does not have the function of elastic support. During the taking-out operation, the PCB is attached to the detection surface, and manual taking is relatively laborious.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB performance detection device, comprising a fixed frame, a mounting frame is fixedly installed on the bottom of the fixed frame, a detection bottom plate is arranged on the top of the mounting frame, elastic reset mechanisms are installed at the four corners of the inner cavity of the fixed frame, mounting grooves are opened on the left and right sides of the inner cavity of the fixed frame, a movable pressing mechanism is installed in the inner cavity of the mounting groove, and a detection top plate is installed on the surface of the movable pressing mechanism.

[0007] Preferably, the elastic reset mechanism comprises an auxiliary block, a surface of the auxiliary block is fixedly connected to an inner wall of the fixed frame, and a top of the auxiliary block is fixedly connected to a guide rod.

[0008] Preferably, a supporting block is provided on the top sliding sleeve of the guide rod surface, a reset spring is installed on the surface sleeve of the guide rod, the top of the reset spring is fixedly connected to the bottom of the supporting block, the bottom of the reset spring is fixedly connected to the top of the auxiliary block, and the left and right sides of the detection base plate are provided with teeth for use with the supporting block.

[0009] Preferably, the movable pressing mechanism comprises a cylinder and a convex rod, the surface of the convex rod is fixedly connected to the inner wall of the mounting groove, and the output end of the cylinder is fixedly connected to a connecting block.

[0010] Preferably, a movable rod is movably installed at the center of the top of the connecting block, a spiral guide groove is opened at the bottom of the surface of the movable rod, and a vertical guide groove is vertically opened at the top of the inner cavity of the spiral guide groove.

[0011] Preferably, a movable plate is fixedly sleeved on the surface of the movable rod and located on the top of the fixed frame, a vertical rod is slidably installed through the surface of the movable plate, and the bottom of the vertical rod penetrates to the bottom of the movable plate and is fixedly connected to the top of the detection top plate.

[0012] Preferably, a rubber spring is sleeved on the surface of the vertical rod and located on the top of the movable plate, the upper and lower ends of the rubber spring are fixedly connected to the vertical rod and the movable plate respectively, and electromagnets are fixedly installed on the bottom of the rubber spring and the top of the detection top plate.

[0013] Preferably, a through groove is vertically opened on the surface of the movable plate, and the vertical guide groove, the through groove and the spiral guide groove are all adapted to the convex rod.

[0014] Preferably, the four corners of the top of the installation frame are fixedly connected with positioning rods, and the surfaces of the detection bottom plate and the detection top plate are provided with positioning holes used in conjunction with the positioning rods.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model has the advantage of elastic support by setting an elastic reset mechanism, and can use the support block to contact and support the PCB. With the assistance of the reset spring, when there is no external force, the support block automatically supports the PCB to the upper position in the fixed frame, which is convenient for the staff to take;

[0017] 2. The utility model has the advantage of double-sided testing by arranging a detection bottom plate, a detection top plate, a movable holding mechanism and a mounting groove. When the cylinder contracts, the detection top plate and the movable plate move downward and rotate at the same time under the guidance of the convex rod, the spiral guide groove and the vertical guide groove. When the electromagnet is energized, the detection top plate moves downward to position and hold the top of the PCB. When the PCB moves downward and contacts the detection bottom plate, double-sided testing can be performed simultaneously, and the overall processing efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a bottom-up stereogram of the structure of the utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the utility model when the fixed frame, the detection base plate and the installation frame are separated;

[0021] Figure 4 For this utility model Figure 3 Middle A is an enlarged schematic diagram;

[0022] Figure 5 It is a three-dimensional schematic diagram of the installation of the detection top plate and the movable holding mechanism of the utility model;

[0023] Figure 6 For this utility model Figure 5 Middle B is an enlarged schematic diagram.

[0024] In the figure: 1. fixed frame; 2. detection bottom plate; 3. detection top plate; 4. movable holding mechanism; 401. cylinder; 402. vertical rod; 403. electromagnet; 404. rubber spring; 405. movable plate; 406. vertical guide groove; 407. through groove; 408. protruding rod; 409. spiral guide groove; 410. connecting block; 411. movable rod; 5. elastic reset mechanism; 501. auxiliary block; 502. supporting block; 503. guide rod; 504. reset spring; 6. mounting frame; 7. tooth mouth; 8. positioning hole; 9. positioning rod; 10. mounting groove. DETAILED DESCRIPTION

[0025] See also Figure 1-Figure 6 A PCB performance detection device includes a fixed frame 1, a mounting frame 6 is fixedly installed at the bottom of the fixed frame 1, a detection bottom plate 2 is arranged on the top of the mounting frame 6, elastic reset mechanisms 5 are installed at the four corners of the inner cavity of the fixed frame 1, mounting grooves 10 are opened on the left and right sides of the inner cavity of the fixed frame 1, a movable holding mechanism 4 is installed in the inner cavity of the mounting groove 10, and a detection top plate 3 is installed on the surface of the movable holding mechanism 4;

[0026] See also Figure 3 and Figure 4 The elastic reset mechanism 5 includes an auxiliary block 501, the surface of the auxiliary block 501 is fixedly connected to the inner wall of the fixed frame 1, and the top of the auxiliary block 501 is fixedly connected to a guide rod 503;

[0027] See also Figure 3 and Figure 4 The top of the guide rod 503 is slidably sleeved with a supporting block 502, the surface of the guide rod 503 is sleeved with a return spring 504, the top of the return spring 504 is fixedly connected to the bottom of the supporting block 502, the bottom of the return spring 504 is fixedly connected to the top of the auxiliary block 501, and the left and right sides of the detection base plate 2 are provided with tooth openings 7 for use with the supporting block 502;

[0028] See also Figure 1 , Figure 5 and Figure 6 The movable pressing mechanism 4 includes a cylinder 401 and a protruding rod 408, the surface of the protruding rod 408 is fixedly connected to the inner wall of the mounting groove 10, and the output end of the cylinder 401 is fixedly connected to a connecting block 410;

[0029] See also Figure 1 , Figure 5 and Figure 6 A movable rod 411 is movably installed at the center of the top of the connecting block 410, a spiral guide groove 409 is opened at the bottom of the surface of the movable rod 411, and a vertical guide groove 406 is vertically opened at the top of the inner cavity of the spiral guide groove 409;

[0030] See also Figure 1 , Figure 5 and Figure 6 The surface of the movable rod 411 is fixedly sleeved with a movable plate 405 at the top of the fixed frame 1, and the surface of the movable plate 405 is slidably installed with a vertical rod 402, and the bottom of the vertical rod 402 penetrates to the bottom of the movable plate 405 and is fixedly connected to the top of the detection top plate 3;

[0031] See also Figure 1 , Figure 5 and Figure 6 A rubber spring 404 is sleeved on the surface of the vertical rod 402 and located on the top of the movable plate 405. The upper and lower ends of the rubber spring 404 are fixedly connected to the vertical rod 402 and the movable plate 405 respectively. The bottom of the rubber spring 404 and the top of the detection top plate 3 are fixedly installed with an electromagnet 403;

[0032] See also Figure 1 , Figure 5 and Figure 6 The surface of the movable plate 405 is vertically provided with a through groove 407, and the vertical guide groove 406, the through groove 407 and the spiral guide groove 409 are all adapted to the protruding rod 408;

[0033] See also Figure 3 The four corners of the top of the installation frame 6 are fixedly connected with positioning rods 9, and the surfaces of the detection bottom plate 2 and the detection top plate 3 are provided with positioning holes 8 used in conjunction with the positioning rods 9;

[0034] The surface of the mounting frame 6 is fixedly connected to the fixed frame 1 by bolts, and auxiliary plates are fixedly connected to the left and right sides of the bottom of the fixed frame 1, and the surface of the cylinder 401 is fixedly connected to the auxiliary plates;

[0035] The top of the detection bottom plate 2 and the bottom of the detection top plate 3 are both fixedly mounted with detection probes for detecting the PCB board;

[0036] The bottom of the surface of the movable rod 411 is movably connected to the connecting block 410 via a cylindrical roller bearing;

[0037] The electromagnet 403 is connected to an external power source through a variable resistor. When the voltage is stable, when the resistance value becomes smaller, the current flowing into the electromagnet 403 becomes larger, and the magnetic field generated by the electromagnet 403 becomes stronger.

[0038] The coils on the upper and lower electromagnets 403 are wound in opposite directions, so that when the upper and lower electromagnets 403 are powered on, the magnetic poles on the opposite sides are the same, and the upper and lower electromagnets 403 repel each other, causing the upper and lower electromagnets 403 to move in opposite directions.

[0039] The positioning rod 9 is composed of a large-diameter short column and a small-diameter long column. The bottom of the large-diameter short column is fixedly connected to the mounting frame 6, the top of the large-diameter short column is fixedly connected to the bottom of the small-diameter long column, and the positioning hole 8 is adapted to the small-diameter long column. This design enables the large-diameter short column to carry and support the detection base plate 2;

[0040] In the initial state, the left and right detection top plates 3 are at different heights to avoid collision when the two detection top plates 3 rotate inwards;

[0041] By setting the detection bottom plate 2 and the detection top plate 3, the bottom and top surfaces of the PCB can be electrically tested in the installed state, respectively. By setting the cylinder 401, the connection block 410 can be flexibly driven to move up and down. By setting the vertical rod 402, the displacement of the detection top plate 3 can be positioned and guided to ensure the displacement stability of the detection top plate 3.

[0042] By setting the electromagnet 403, a magnetic field can be generated in the energized state, and the upper and lower electromagnets 403 cooperate to make the detection top plate 3 move downward flexibly. By setting the rubber spring 404, a reset force can be provided for the vertical rod 402 and the detection top plate 3.

[0043] By providing the movable plate 405, it can be sleeved and installed on the movable rod 411, thereby meeting the installation requirements of the vertical rod 402 and the electromagnet 403. By providing the vertical guide groove 406, the protruding rod 408 and the spiral guide groove 409, it can play a role in positioning and guiding. As the movable rod 411 gradually moves downward, the spiral guide groove 409 and the protruding rod 408 cooperate to make the movable rod 411 automatically rotate 180 degrees. As the movable rod 411 moves downward again, the vertical guide groove 406 and the protruding rod 408 cooperate to make the movable rod 411 stably move downward without rotating.

[0044] By providing the through groove 407, the requirement for the through space of the protruding rod 408 can be met, and the collision and damage between the movable plate 405 and the protruding rod 408 can be avoided. By providing the connecting block 410, it can be installed on the output end of the cylinder 401, and the requirement for the movable rod 411 to be installed movably can be met.

[0045] By setting the auxiliary block 501, the fixed installation requirements of the bottom end of the reset spring 504 and the guide rod 503 can be met, and the detection bottom plate 2, the installation frame 6 and the PCB installation detection will not be affected. By setting the supporting block 502 and the tooth opening 7, the supporting block 502 can carry and support the PCB, and the tooth opening 7 meets the space requirement for the supporting block 502 to penetrate.

[0046] By setting the guide rod 503, the installation requirements of the reset spring 504 can be met, and the displacement of the supporting block 502 can be guided. By setting the positioning hole 8 and the positioning rod 9, a positioning installation method can be used, which greatly facilitates the accurate installation of the detection base plate 2, the detection top plate 3 and the PCB. By setting the installation groove 10, it can play a role of positioning guidance when the movable plate 405 moves down, thereby preventing the movable plate 405 from rotating at will.

[0047] When in use, all components are in the initial installation state. First, under the positioning of the positioning rod 9, the detection base plate 2 is moved down and placed on the installation frame 6. The existence of the toothed mouth 7 can prevent the detection base plate 2 from contacting the supporting block 502. When the detection operation is performed, the PCB is quickly and accurately moved down under the positioning action of the positioning rod 9 until the side of the PCB board contacts the supporting block 502. Then the cylinder 401 is controlled to contract to drive the connection block 410 and the movable rod 411 to move. At this time, under the guidance of the convex rod 408 and the spiral guide groove 409, the movable rod 411 and the movable plate 405 are first rotated 180 degrees, and the detection top plate 3 is placed above the fixed frame 1. At this time, the two detection top plates 3 are at different heights, and as the cylinder 401 further contracts Working, under the positioning action of the vertical guide groove 406 and the protruding rod 408, the movable plate 405 and the detection top plate 3 move down at the same time, and then the electromagnet 403 is controlled to work, the upper and lower electromagnets 403 are energized and repel each other, and under the guiding action of the vertical rod 402, the detection top plate 3 moves down stably again, and the rubber spring 404 is compressed. At this time, the detection top plate 3 presses the PCB, and the supporting block 502 moves down under pressure, and the reset spring 504 is compressed until the PCB contacts the detection bottom plate 2. At this time, double-sided power-on test can be carried out, and when the cylinder 401 is extended and reset, the PCB automatically moves up under the elastic support of the reset spring 504 and the supporting block 502, which greatly facilitates the staff to take it, has high overall operation efficiency, and is more in line with the actual needs of users.

[0048] In summary: the PCB performance detection device solves the problem that the device cannot perform double-sided testing on the PCB by arranging the detection bottom plate 2, the detection top plate 3, the movable holding mechanism 4, the elastic reset mechanism 5 and the installation groove 10, and the PCB needs to be manually taken out, turned over and put down, with many manual intervention steps and a long operation time, and the device does not have the function of elastic support. During the removal operation, the PCB is in contact with the detection surface, and it is laborious to take it manually.

Claims

1. A PCB performance detection device, comprising a fixed frame (1), characterized in that: A mounting frame (6) is fixedly mounted at the bottom of the fixed frame (1), a detection bottom plate (2) is arranged on the top of the mounting frame (6), elastic reset mechanisms (5) are installed at the four corners of the inner cavity of the fixed frame (1), mounting grooves (10) are provided on the left and right sides of the inner cavity of the fixed frame (1), a movable holding mechanism (4) is installed in the inner cavity of the mounting groove (10), and a detection top plate (3) is installed on the surface of the movable holding mechanism (4).

2. The PCB performance detection device according to claim 1, characterized in that: The elastic reset mechanism (5) comprises an auxiliary block (501), the surface of the auxiliary block (501) is fixedly connected to the inner wall of the fixed frame (1), and the top of the auxiliary block (501) is fixedly connected to a guide rod (503).

3. The PCB performance detection device according to claim 2, characterized in that: A supporting block (502) is slidably sleeved on the top of the surface of the guide rod (503), a reset spring (504) is sleeved and installed on the surface of the guide rod (503), the top of the reset spring (504) is fixedly connected to the bottom of the supporting block (502), the bottom of the reset spring (504) is fixedly connected to the top of the auxiliary block (501), and the left and right sides of the detection base plate (2) are provided with tooth openings (7) for use with the supporting block (502).

4. The PCB performance detection device according to claim 1, characterized in that: The movable holding mechanism (4) comprises a cylinder (401) and a protruding rod (408), the surface of the protruding rod (408) is fixedly connected to the inner wall of the mounting groove (10), and the output end of the cylinder (401) is fixedly connected to a connecting block (410).

5. The PCB performance detection device according to claim 4, characterized in that: A movable rod (411) is movably installed at the center of the top of the connecting block (410), a spiral guide groove (409) is opened at the bottom of the surface of the movable rod (411), and a vertical guide groove (406) is opened vertically at the top of the inner cavity of the spiral guide groove (409).

6. The PCB performance detection device according to claim 5, characterized in that: A movable plate (405) is fixedly sleeved on the surface of the movable rod (411) and located at the top of the fixed frame (1); a vertical rod (402) is slidably installed through the surface of the movable plate (405); the bottom of the vertical rod (402) penetrates the bottom of the movable plate (405) and is fixedly connected to the top of the detection top plate (3).

7. The PCB performance detection device according to claim 6, characterized in that: A rubber spring (404) is sleeved on the surface of the vertical rod (402) and located on the top of the movable plate (405); the upper end and the lower end of the rubber spring (404) are fixedly connected to the vertical rod (402) and the movable plate (405) respectively; and an electromagnet (403) is fixedly installed on the bottom of the rubber spring (404) and the top of the detection top plate (3).

8. The PCB performance detection device according to claim 7, characterized in that: A through groove (407) is vertically provided on the surface of the movable plate (405), and the vertical guide groove (406), the through groove (407) and the spiral guide groove (409) are all adapted to the protruding rod (408).

9. The PCB performance detection device according to claim 1, characterized in that: The four corners of the top of the installation frame (6) are fixedly connected with positioning rods (9), and the surfaces of the detection bottom plate (2) and the detection top plate (3) are provided with positioning holes (8) used in conjunction with the positioning rods (9).

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