Mounting jig for circuit board detection

Abstract

The utility model relates to a mounting jig for circuit board detection, and relates to the technical field of mounting jigs. A circuit board can be placed on the top wall of the material receiving disc, an air pipe is arranged at the bottom of the material receiving disc, the air pipe is communicated with the top wall of the material receiving disc, a vacuum generator is arranged on the workbench, the vacuum generator is communicated with the air pipe, and the vacuum generator is used for extracting air in the air pipe. And the circuit board is adsorbed in the top wall of the material receiving disc. The method has the effect of improving the positioning precision of the circuit board in the detection process.

Description

Technical Field

[0001] The present application relates to the field of installation jigs, and particularly to an installation jig for circuit board detection. Background Art

[0002] A circuit board is the heart of modern industry and an essential part of automated production equipment. Since the circuit board is the core of modern industrial equipment, after the circuit board is produced, it needs to go through multiple detection processes. In terms of circuit board detection, an installation jig is a key tool for ensuring the stable fixation and precise positioning of the circuit board. Usually, the installation jig includes a platform and positioning posts on the platform. By placing the circuit board on the platform and making part of the border of the circuit board abut against the side wall of the positioning posts, the positioning and detection of the circuit board can be achieved.

[0003] After the circuit board is placed on the installation jig, once it is subjected to external collisions and vibrations, the circuit board is very likely to displace on the installation jig, resulting in poor positioning accuracy during the detection process of the circuit board. Therefore, it needs to be improved. Summary of the Utility Model

[0004] In order to improve the poor stability of the circuit board on the installation jig and the poor positioning accuracy during the detection process of the circuit board, the present application provides an installation jig for circuit board detection.

[0005] The installation jig for circuit board detection provided by the present application adopts the following technical solutions:

[0006] An installation jig for circuit board detection, used for installing a circuit board, includes a workbench. A receiving tray is provided on the workbench. The circuit board can be placed on the top wall of the receiving tray. An air pipe is provided at the bottom of the receiving tray. The air pipe is communicated with the top wall of the receiving tray. A vacuum generator is provided on the workbench. The vacuum generator is communicated with the air pipe. The vacuum generator is used to extract the air in the air pipe and adsorb the circuit board inside the top wall of the receiving tray.

[0007] By adopting the above technical solutions, during use, the circuit board is placed on the receiving tray, and then the vacuum generator is started to extract the gas from one end of the air pipe to the other end. During this process, negative pressure is generated on the path of the air pipe, that is, the pressure at the part where the top wall of the receiving tray is communicated with the air pipe is high, so that the place with high pressure on the top wall of the receiving tray exerts a suction force on the circuit board, thereby adsorbing the circuit board on the receiving tray and increasing the stability of the circuit board installed on the receiving tray. That is, when the receiving tray is shaken by external forces, the circuit board is not likely to displace on the receiving tray, improving the positioning accuracy during the detection process of the circuit board. While the receiving tray exerts a suction force on the circuit board, it can suck away the dust at the bottom of the circuit board, achieving the effect of cleaning the circuit board.

[0008] Optionally, an installation groove is formed in the top wall of the material receiving tray, and the circuit board can be inserted into the installation groove. A cavity is provided in the material receiving tray, and a through hole communicating with the cavity is formed in the bottom wall of the installation groove. The air pipe is communicated with the cavity, and when the air pipe is evacuated by the vacuum generator, it is used to adsorb the circuit board in the installation groove.

[0009] By adopting the above technical solution, when the circuit board is placed on the material receiving tray, the electromagnetic plate is aligned with the installation groove and placed, so that the circuit board is adaptively embedded in the installation groove. The inner wall of the installation groove abuts against the side wall of the circuit board, playing a limiting role, so that the circuit board quickly finds its position on the material receiving tray to achieve positioning. Then, the vacuum generator is started to pump the gas in the air pipe and the cavity, so that the gas flows rapidly in the air pipe and the cavity, thereby generating negative pressure at the through hole on the gas moving path, that is, the gas in the installation groove enters the cavity from the through hole and flows in the direction of the vacuum generator, so that the circuit board in the installation groove is subjected to the suction of the gas, and thus abuts against the inner wall of the installation groove, realizing the fixation of the circuit board in the installation groove. At the same time, during the process of evacuating the air, the dust at the bottom or surface of the circuit board can be sucked away, reducing the situation that the surface of the circuit board is contaminated.

[0010] Optionally, the air pipe includes an adsorption pipe and a connecting pipe. The adsorption pipe is arranged on the material receiving tray and communicated with the cavity. One end of the connecting pipe far away from the adsorption pipe is communicated with the air inlet end of the vacuum generator. An installation sleeve is sleeved on one end of the connecting pipe close to the adsorption pipe. The installation sleeve can rotate around the central axis of the connecting pipe on the connecting pipe. One end of the adsorption pipe close to the connecting pipe can be inserted into the installation sleeve, and the inner wall of the installation sleeve can be threadedly connected with the outer side wall of the adsorption pipe.

[0011] By adopting the above technical solution, during the process of evacuating the air pipe by the vacuum generator, after the gas carries the dust and enters the cavity from the through hole, it flows from the adsorption pipe to the connecting pipe and finally reaches the vacuum generator through the connecting pipe and is discharged from the air outlet end of the vacuum generator. After being used for a period of time, dust is likely to accumulate in the air pipe. At this time, rotate the installation sleeve until the adsorption pipe is separated from the installation pipe, that is, the adsorption pipe and the connecting pipe are separated, and the ends of the adsorption pipe and the connecting pipe are both exposed, so as to clean the impurities in the air pipe.

[0012] Optionally, a filter plate is arranged in the installation sleeve. The filter plate is inserted between the adsorption pipe and the connecting pipe, and both sides of the filter plate abut against the end walls of the adsorption pipe and the connecting pipe respectively.

[0013] By adopting the above technical solution, when the gas flows in the trachea with dust, the gas will pass through the filter plate, and the dust cannot pass through the pores on the filter plate, so it will be left on the side of the filter plate close to the adsorption tube. Then rotate the mounting sleeve until the adsorption tube is separated from the mounting tube, so that the filter plate is completely exposed, which is convenient for cleaning the dust and impurities accumulated here. The filter plate is directly cleaned, and the connecting pipe is relatively clean and does not need to be cleaned, making the operation of cleaning impurities more convenient.

[0014] Optionally, a receiving groove is formed on the inner wall of the adsorption tube, and the receiving groove penetrates through the end wall of the adsorption tube close to the connecting tube, and the filter plate is adaptively inserted into the receiving groove.

[0015] By adopting the above technical solution, the filter plate is adaptively inserted into the receiving groove, and the inner wall of the receiving groove abuts against the filter plate, which plays a limiting role on the filter plate, so that the filter plate will not displace on the cross section of the adsorption tube, so that the filter plate can completely block between the adsorption tube and the connecting tube, that is, there is no easy gap between the filter plate and the inner wall of the adsorption tube, and naturally there is no possibility of dust entering the connecting tube from this gap.

[0016] Optionally, a magnet is fixed on the inner wall of the receiving groove, and the filter plate can be adsorbed on the magnet.

[0017] By adopting the above technical solution, after the filter plate is inserted into the receiving groove, the filter plate is attracted to the magnet, making it difficult for the filter plate to separate from the adsorption tube. Then insert the adsorption tube with the filter plate into the mounting sleeve and rotate the mounting sleeve to make the adsorption tube continuously penetrate until the filter plate abuts against the end wall of the connecting tube. At this time, both sides of the filter plate are restricted, realizing the blockage between the connecting tube and the adsorption tube. The filter plate is adsorbed on the adsorption tube, making the filter plate not easy to rotate during the connection process between the adsorption tube and the connecting tube and maintaining a vertical state, increasing the stability of the blockage between the adsorption tube and the connecting tube.

[0018] Optionally, the air outlet end of the vacuum generator is aligned with the top wall of the receiving tray for blowing air onto the top wall of the receiving tray.

[0019] By adopting the above technical solution, when the vacuum generator pumps the gas in the trachea to flow, there is suction at the through hole, so that the gas can immediately carry the dust in the mounting groove and at the bottom of the circuit board, realizing the cleaning of the bottom of the circuit board. Then the gas sucked by the vacuum generator is ejected from the air outlet end of the vacuum generator and blown on the upper surface of the receiving tray, so as to blow off the dust on the top wall of the receiving tray and the upper surface of the circuit board, realizing the cleaning of the top of the circuit board and increasing the overall detection accuracy of the circuit board.

[0020] Optionally, a transverse movement component is provided on the workbench. The transverse movement component includes a lead screw mounting base. The lead screw is horizontally placed on the workbench, and the end of the lead screw is rotatably connected to the workbench. The mounting base is sleeved on the lead screw and is threadedly connected to the lead screw. The lead screw rotates to drive the mounting base to move horizontally on the workbench. The vacuum generator is fixed on the mounting base, and the mounting base is fixed to the receiving tray through a connecting plate.

[0021] By adopting the above technical solution, start the self-rotation of the lead screw, so that the mounting base moves along the length direction of the lead screw on the workbench, and at the same time drives the vacuum generator and the receiving tray to move synchronously, so that the receiving tray can receive the circuit boards at different positions, and it is also convenient to transport the positioned circuit boards to the detection station.

[0022] To sum up, the present application includes at least the following beneficial effects:

[0023] 1. During use, place the circuit board on the receiving tray, and then start the vacuum generator to pump the gas from one end of the air pipe to the other end. During this process, negative pressure is generated on the path of the air pipe, that is, the pressure at the part where the top wall of the receiving tray is connected to the air pipe is high, so that the part with high pressure on the top wall of the receiving tray exerts a suction force on the circuit board, thereby adsorbing the circuit board on the receiving tray, increasing the stability of the circuit board installed on the receiving tray. Improve the positioning accuracy during the circuit board detection process;

[0024] 2. During the process of the air pipe being evacuated by the vacuum generator, the gas carries dust and enters the cavity from the through hole, then flows from the adsorption pipe to the connecting pipe, and finally reaches the vacuum generator through the connecting pipe and is discharged from the air outlet end of the vacuum generator. After using for a period of time, dust is likely to accumulate in the air pipe. At this time, rotate the mounting sleeve until the adsorption pipe is separated from the mounting pipe, that is, the adsorption pipe and the connecting pipe are separated, and the ends of the adsorption pipe and the connecting pipe are both exposed, so as to clean the impurities in the air pipe. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the mounting jig for circuit board detection in the embodiment of the present application;

[0026] Figure 2 It is a structural sectional view of the mounting jig for circuit board detection in the embodiment of the present application;

[0027] Figure 3 It is a structural sectional view of the connection relationship between the adsorption pipe and the connecting pipe.

[0028] In the figure: 10, workbench; 20, transverse movement assembly; 21, lead screw; 22, mounting seat; 23, click; 30, vacuum generator; 40, receiving tray; 41, mounting groove; 42, through hole; 43, cavity; 50, air pipe; 51, adsorption pipe; 511, receiving groove; 512, magnet; 52, connecting pipe; 60, mounting sleeve; 70, filter plate; 80, connecting plate. Detailed implementation mode

[0029] The following is a further detailed description of this application in combination with the attached Figures 1-3 drawings.

[0030] An installation jig for circuit board detection disclosed in an embodiment of this application. Refer to Figure 1 and Figure 2 , the installation jig for circuit board detection includes a horizontally placed workbench 10, on which a vacuum generator 30 is installed through a transverse movement assembly 20. The transverse movement assembly 20 is used to drive the vacuum generator 30 to horizontally displace on the workbench 10. A receiving tray 40 is connected to the transverse movement assembly 20. The receiving tray 40 is horizontally arranged. An installation groove 41 is opened on the top wall of the receiving tray 40 according to the shape of the circuit board, so that the circuit board can be adaptively placed in the installation groove 41. The vacuum generator 30 extracts the gas in the installation groove 41 from the bottom of the installation groove 41 through an air pipe 50, thereby adsorbing and fixing the circuit board in the installation groove 41, increasing the stability of the circuit board during detection on the receiving tray 40.

[0031] Refer to Figure 1 and Figure 2 , specifically, the transverse movement assembly 20 includes a lead screw 21 and a mounting seat 22. The lead screw 21 is horizontally placed on the workbench 10, and the end of the lead screw 21 is rotatably connected to the workbench 10. A motor is installed on the workbench 10 through bolts, and the output end of the motor is coaxially fixed to one end of the lead screw 21. When the motor is started, it is used to drive the lead screw 21 to rotate. The mounting seat 22 is sleeved on the lead screw 21 and is threadedly connected to the lead screw 21. The bottom wall of the mounting seat 22 abuts against the workbench 10. When the lead screw 21 rotates, the mounting seat 22 cannot rotate around the central axis of the lead screw 21, so that the mounting seat 22 finally moves along the length direction of the lead screw 21 on the workbench 10. The vacuum generator 30 is fixed on the mounting seat 22, and a connecting plate 80 is fixed on the side wall of the mounting seat 22. The connecting plate 80 is fixed to the receiving tray 40.

[0032] Start the motor to drive the lead screw 21 to rotate, so that the mounting seat 22 moves along the length direction of the lead screw 21 on the workbench 10, and at the same time drives the vacuum generator 30 and the receiving tray 40 to move synchronously, so that the receiving tray 40 can receive circuit boards at different positions, and it is also convenient to transport the positioned circuit boards to the detection station.

[0033] Refer to Figure 1 andFigure 2 A cavity 43 is formed in the material receiving tray 40, and a plurality of through holes 42 are formed in the inner bottom wall of the installation groove 41. The through holes 42 communicate with the cavity 43. The air pipe 50 includes an adsorption pipe 51 and a connecting pipe 52. The adsorption pipe 51 communicates with the cavity 43, that is, one side of the cavity 43 is fixedly communicated with a section of the adsorption pipe 51, and the other side is fixedly communicated with another section of the adsorption pipe 51. One end of the connecting pipe 52 is fixedly communicated with the air inlet end of the vacuum generator 30, and the other end is communicated with the adsorption pipe 51.

[0034] Refer to Figure 2 and Figure 3 A mounting sleeve 60 is sleeved on one end of the connecting pipe 52 close to the adsorption pipe 51. The mounting sleeve 60 can rotate on the connecting pipe 52 with the central axis of the connecting pipe 52 as the axis. One end of the adsorption pipe 51 close to the connecting pipe 52 can be inserted into the mounting sleeve 60, and the inner wall of the mounting sleeve 60 can be threadedly connected with the outer side wall of the adsorption pipe 51.

[0035] After the circuit board is aligned with the installation groove 41 and inserted into the installation groove 41, the end of the adsorption pipe 51 is inserted into the mounting sleeve 60, and then the mounting sleeve 60 is rotated, so that the adsorption pipe 51 gradually penetrates into the mounting sleeve 60, so that the adsorption pipe 51 is communicated and fixed with the mounting sleeve 60, thereby realizing the connection between the adsorption pipe 51 and the connecting pipe 52, and forming a complete air pipe 50.

[0036] Refer to Figure 2 and Figure 3 Then, the vacuum generator 30 is started to pump the gas in the air pipe 50 and the cavity 43, so that the gas flows rapidly in the air pipe 50 and the cavity 43, so that a negative pressure is generated at the through hole 42 on the gas movement path, that is, the gas in the installation groove 41 enters the cavity 43 from the through hole 42 and flows in the direction of the vacuum generator 30, so that the circuit board in the installation groove 41 is sucked by the gas, so as to be abutted against the inner wall of the installation groove 41, realizing the fixation of the circuit board in the installation groove 41. At the same time, during the vacuum pumping process, the dust at the bottom or surface of the circuit board can be sucked away, reducing the situation of the circuit board surface being contaminated.

[0037] Refer to Figure 2 and Figure 3 A filter plate 70 is arranged in the mounting sleeve 60. A receiving groove 511 is formed in the inner wall of the adsorption pipe 51. The receiving groove 511 penetrates through the side end wall of the adsorption pipe 51 close to the connecting pipe 52. A magnet 512 is fixed on the inner wall of the receiving groove 511. The filter plate 70 is adaptively inserted into the receiving groove 511 and attracted to the magnet 512. One side end wall of the connecting pipe 52 close to the adsorption pipe 51 can be abutted against the filter plate 70.

[0038] During installation, the filter plate 70 is adaptively inserted into the receiving groove 511. The filter plate 70 is attracted by the magnet 512, making it difficult for the filter plate 70 to separate from the adsorption tube 51. At the same time, the inner wall of the receiving groove 511 abuts against the filter plate 70, restricting the filter plate 70 and preventing it from displacing on the cross-section of the adsorption tube 51. Thus, the filter plate 70 can completely block the space between the adsorption tube 51 and the connecting tube 52.

[0039] When the gas with dust flows in the air pipe 50, the gas will pass through the filter plate 70, while the dust cannot pass through the pores on the filter plate 70 and is thus left on the side of the filter plate 70 close to the adsorption tube 51. Then, rotate the installation sleeve 60 until the adsorption tube 51 separates from the installation pipe, so that the filter plate 70 is completely exposed, facilitating the cleaning of the dust and impurities accumulated here. By directly cleaning the filter plate 70, the inside of the connecting tube 52 remains relatively clean and does not need to be cleaned, making the operation of cleaning impurities more convenient.

[0040] Refer to Figure 2 and Figure 3 , the air outlet end of the vacuum generator 30 is connected to the air outlet pipe 50, and the air outlet pipe 50 is aligned with the top wall of the receiving tray 40 for blowing air onto the top wall of the receiving tray 40. When the vacuum generator 30 pumps the gas in the air pipe 50 to flow, a suction force is generated at the through hole 42, so that the gas can immediately carry away the dust inside the installation groove 41 and at the bottom of the circuit board, realizing the cleaning of the bottom of the circuit board. Then, the gas sucked by the vacuum generator 30 is ejected from the air outlet end of the vacuum generator 30 and blows on the upper surface of the receiving tray 40, thereby blowing away the dust on the top wall of the receiving tray 40 and the upper surface of the circuit board, realizing the cleaning of the top of the circuit board and increasing the overall detection accuracy of the circuit board.

[0041] The implementation principle of the installation jig for circuit board detection in the embodiment of the present application is as follows: During use, place the circuit board on the receiving tray 40, and then start the vacuum generator 30 to pump the gas from one end of the air pipe 50 to the other end. During this process, a negative pressure is generated on the path of the air pipe 50, that is, the pressure at the part where the top wall of the receiving tray 40 is connected to the air pipe 50 is high, so that the part with high pressure on the top wall of the receiving tray 40 exerts a suction force on the circuit board, thereby adsorbing the circuit board on the receiving tray 40 and increasing the stability of the circuit board installed on the receiving tray 40. That is, when the receiving tray 40 is shaken by an external force, the circuit board is not likely to displace on the receiving tray 40, improving the positioning accuracy during the circuit board detection process. While the receiving tray 40 exerts a suction force on the circuit board, it can suck away the dust at the bottom of the circuit board, achieving the effect of cleaning the circuit board.

[0042] The above are all the preferred embodiments of the present application. Without limiting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A mounting jig for circuit board testing, used for mounting circuit boards, characterized in that: The invention comprises a workbench (10), wherein a receiving tray (40) is provided on the workbench (10), and a circuit board can be placed on the top wall of the receiving tray (40); an air pipe (50) is provided at the bottom of the receiving tray (40), and the air pipe (50) is connected to the top wall of the receiving tray (40); a vacuum generator (30) is provided on the workbench (10), and the vacuum generator (30) is connected to the air pipe (50), and the vacuum generator (30) is used to extract air in the air pipe (50) to adsorb the circuit board into the top wall of the receiving tray (40).

2. The circuit board detection mounting jig according to claim 1, characterized in that: The top wall of the receiving tray (40) is provided with a mounting groove (41), and a circuit board can be inserted into the mounting groove (41). A cavity (43) is provided in the receiving tray (40), and a through hole (42) communicating with the cavity (43) is provided on the bottom wall of the mounting groove (41). The air pipe (50) is communicated with the cavity (43), and the air pipe (50) is used to adsorb the circuit board into the mounting groove (41) when a vacuum is drawn by the vacuum generator (30).

3. The circuit board detection mounting jig according to claim 2, characterized in that: The air pipe (50) comprises an adsorption tube (51) and a connecting tube (52). The adsorption tube (51) is arranged on the receiving plate (40) and is connected to the cavity (43). The end of the connecting tube (52) away from the adsorption tube (51) is connected to the air inlet end of the vacuum generator (30). The end of the connecting tube (52) close to the adsorption tube (51) is provided with a mounting sleeve (60). The mounting sleeve (60) can rotate on the connecting tube (52) with the central axis of the connecting tube (52) as the axis. The end of the adsorption tube (51) close to the connecting tube (52) can be inserted into the mounting sleeve (60), and the inner wall of the mounting sleeve (60) can be threadedly connected to the outer wall of the adsorption tube (51).

4. The circuit board detection mounting jig according to claim 3, characterized in that: A filter plate (70) is provided in the installation sleeve (60), and the filter plate (70) is inserted between the adsorption tube (51) and the connecting tube (52), and two sides of the filter plate (70) are respectively in contact with the end walls of the adsorption tube (51) and the connecting tube (52).

5. The circuit board testing fixture according to claim 4, characterized in that: A receiving groove (511) is provided on the inner wall of the adsorption tube (51), the receiving groove (511) passes through the end wall of one side of the adsorption tube (51) close to the connecting tube (52), and the filter plate (70) is adapted to be inserted into the receiving groove (511).

6. The circuit board testing fixture according to claim 5, characterized in that: A magnet (512) is fixed on the inner wall of the containing groove (511), and the filter plate (70) can be adsorbed on the magnet (512).

7. The circuit board testing fixture according to claim 1, characterized in that: The air outlet end of the vacuum generator (30) is aligned with the top wall of the receiving tray (40) and is used to blow air toward the top wall of the receiving tray (40).

8. The circuit board testing fixture according to claim 1, characterized in that: The workbench (10) is provided with a transverse movement assembly (20), and the transverse movement assembly (20) comprises a screw rod (21) and a mounting seat (22). The screw rod (21) is horizontally placed on the workbench (10), and the end of the screw rod (21) is rotatably connected to the workbench (10). The mounting seat (22) is sleeved on the screw rod (21) and is threadedly connected to the screw rod (21). The screw rod (21) rotates to drive the mounting seat (22) to move horizontally on the workbench (10). The vacuum generator (30) is fixed on the mounting seat (22), and the mounting seat (22) is fixed to the receiving tray (40) via a connecting plate (80).

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