Turnover device for circuit board processing

Abstract

The invention relates to the technical field of circuit board processing, in particular to a turnover device for circuit board processing, which comprises a support, a turnover mechanism for turning over a circuit board is arranged on the support, the turnover mechanism comprises a moving seat moving on the support, a turnover box is rotatably arranged on the moving seat, and the turnover box is arranged on the support. The overturning box is provided with a pre-tightening mechanism which assists the circuit board to keep stable in the overturning process, the overturning box is communicated with a rectangular connecting pipe, and the connecting pipe is communicated with a suction cup clamping hand which adsorbs and fixes the edge of the circuit board; according to the turnover device for circuit board processing, stable adsorption is achieved through the suction cup clamping hand, then automatic turnover is achieved, and then the circuit board returns to the initial position, so that it can be guaranteed that the circuit board is kept stable all the time and does not deviate in the turnover process, and the initial position can be kept unchanged when the circuit board is reset to the conveying rail; and the subsequent conveying work is more stable.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board processing, in particular to a turning device for circuit board processing. Background Art

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts.

[0003] Currently, during the process of circuit board processing, it is necessary to flip the circuit board. However, when the current circuit board flipping equipment flips the circuit board, the circuit board is easily offset due to its own gravity, which causes the position of the circuit board to change after flipping, and even makes the circuit board unable to be subsequently transferred, affecting the processing of the circuit board. Summary of the invention

[0004] The purpose of the present invention is to provide a flipping device for circuit board processing, which uses a suction cup to stably adsorb and then automatically flip, and then return to the initial position. This can ensure that the circuit board remains stable and will not shift during the flipping process. When it is reset to the conveying track, the initial position can be maintained unchanged, thereby making its subsequent conveying work more stable.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a turning device for circuit board processing, comprising a bracket, the bracket is provided with a turning mechanism for turning the circuit board, the turning mechanism includes a moving seat that moves on the bracket, a turning box is rotatable on the moving seat, the turning box is provided with a pre-tightening mechanism that assists the circuit board to maintain stability during the turning process, the turning box is connected with a rectangular connecting pipe, the connecting pipe is connected with a suction cup clamp that adsorbs and fixes the edge of the circuit board; one side of the bracket cooperates with the suction cup clamp to stably clamp the circuit board; the cleaning mechanism includes a collecting box located on one side of the bracket, an air pump is provided inside the collecting box, an air outlet end of the air pump is installed with an air cushion located inside the collecting box, the air outlet end of the air pump is connected with an air outlet pipe, the air exhaust end of the air pump is installed with an exhaust pipe, a push rod is installed inside the air outlet pipe and the exhaust pipe, the connecting pipe is connected with a transition pipe, and a sealing rod is slid inside the transition pipe; the air outlet end of the air pump transports gas to the inside of the air cushion to expand it, and the conveying track transports the circuit board When it is sent to a certain position, the flip box moves closer to the circuit board on the bracket through the moving seat, and the flip box drives the connecting pipe and the suction cup gripper to move synchronously. When the transition pipe on the connecting pipe moves to a certain position, it contacts the exhaust pipe. At this time, the top rod inside the exhaust pipe extends into the transition pipe and lifts the sealing rod. The exhaust pipe exhausts the suction cup gripper by connecting with the connecting pipe, so that the suction cup gripper is stably adsorbed and connected with the circuit board; the pre-tightening mechanism includes a sealing block sliding inside the flip box, a second magnetic block is provided on one side of the sealing block, and a first magnetic block sliding along the outside of the flip box is provided on the outside of the flip box, and the first magnetic block drives the sealing block to move by magnetic adsorption connection with the second magnetic block when sliding; when the flip box drives the circuit board to flip, the first magnetic block slides along the outside of the flip box due to its own gravity, the first magnetic block drives the second magnetic block to move by magnetic attraction, and the second magnetic block drives the sealing block to move inside the flip box, and the flip box is used to further extract the gas inside the connecting pipe during the movement of the sealing block.

[0006] Preferably, a motor a is fixed on the bracket, a threaded shaft is fixedly mounted on the output end of the motor a, the threaded shaft rotates on the bracket, and the movable seat is connected to the outer thread of the threaded shaft through a ball nut pair.

[0007] Preferably, a motor b for driving the flip box to flip is installed on one side of the movable seat, and the output end of the motor b is connected to the power shaft.

[0008] Preferably, the connecting pipes are in two groups respectively connected to the two ends of the flip box, and the suction cup grippers are in four groups distributed on the two groups of connecting pipes.

[0009] Preferably, one end of the two groups of connecting pipes are connected to the transition pipe.

[0010] Preferably, an air jet frame is fixed to the outer side of the air cushion, and an air jet nozzle is provided at the edge of the air jet frame.

[0011] Preferably, a slider for installing the first magnetic block is slidably disposed on the outer side of the flip box, and rollers are installed at both upper and lower ends of the slider.

[0012] Preferably, a limiting groove for the movement of the roller is provided on the turnover box.

[0013] Preferably, a compression spring is fixed inside the turnover box, and one end of the compression spring is fixedly connected to the sealing block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention utilizes a suction cup to stably adsorb and then automatically flip, and then return to the initial position, thereby ensuring that the circuit board remains stable and does not deviate during the flipping process, and can maintain the initial position unchanged when resetting to the conveying track, thereby making the subsequent conveying work more stable.

[0016] 2. In the process of the flip box driving the suction cup gripper to move downward and approach the circuit board, the air pump is started, and the air outlet of the air pump inflates the inside of the air cushion to expand the air cushion. Since the air cushion is located below the circuit board, it can play a preventive effect during the flipping or resetting of the circuit board. If the circuit board falls from the conveying track or the suction cup gripper during the flipping process, the air cushion can play a buffering effect to prevent the circuit board from falling directly to the ground, causing damage and increasing costs.

[0017] 3. The present invention utilizes one end of the exhaust pipe to be connected with the push rod, so as to exhaust air inside the suction cup gripper, so that the suction cup gripper and the circuit board are adsorbed more firmly. Therefore, while the suction cup gripper and the circuit board are adsorbed together, the exhaust pipe can be used to exhaust air inside the suction cup gripper, so as to further improve the stability of the connection between the suction cup gripper and the circuit board and improve the stability of the circuit board flipping operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The second schematic diagram of the overall structure of the present invention;

[0020] Figure 3 It is a partial cross-sectional view of the present invention;

[0021] Figure 4 It is a partial structural schematic diagram of the cleaning mechanism of the present invention;

[0022] Figure 5It is a partial cross-sectional view of the pre-tightening mechanism of the present invention;

[0023] Figure 6 It is a partial cross-sectional view of the cleaning mechanism of the present invention;

[0024] Figure 7 It is the second partial cross-sectional view of the cleaning mechanism of the present invention.

[0025] In the figure: 1. bracket; 2. turning mechanism; 21. motor a; 22. threaded shaft; 23. power shaft; 24. moving seat; 25. turning box; 26. suction cup clamp; 28. connecting pipe; 3. cleaning mechanism; 31. collecting box; 32. air pump; 33. air cushion; 34. air outlet pipe; 35. exhaust pipe; 36. jet frame; 37. transition pipe; 38. push rod; 39. sealing rod; 4. pre-tightening mechanism; 41. sealing block; 42. slider; 43. first magnetic block; 44. roller; 45. limiting groove; 46. second magnetic block; 47. compression spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention provides a turning device for processing a circuit board, comprising a bracket 1, on which a turning mechanism 2 for turning the circuit board is arranged, the turning mechanism 2 comprises a moving seat 24 moving on the bracket 1, on which a turning box 25 is rotated, on which a pre-tightening mechanism 4 is arranged to assist the circuit board in being kept stable during the turning process, a rectangular connecting pipe 28 is connected to the turning box 25, and a suction cup clamp 26 for adsorbing and fixing the edge of the circuit board is connected to the connecting pipe 28; one side of the bracket 1 cooperates with the suction cup clamp 26 to stably clamp the circuit board. Structure 3; a motor a21 is fixed on the bracket 1, and a threaded shaft 22 is fixedly installed on the output end of the motor a21, and the threaded shaft 22 rotates on the bracket 1, and the movable seat 24 is connected to the outer thread of the threaded shaft 22 through a ball nut pair, and a motor b for driving the flip box 25 to flip is installed on one side of the movable seat 24, and the output end of the motor b is connected to the power shaft 23, and the connecting pipes 28 are connected to the two ends of the flip box 25 in two groups, and the suction cup grippers 26 are distributed in four groups on the two groups of connecting pipes 28, and one end of the two groups of connecting pipes 28 is connected to the transition pipe 37;

[0028] See also Figures 1 to 3As shown, after the circuit board is transported to a certain position through the conveying track, the motor a21 is started, and the output end of the motor a21 drives the threaded shaft 22 to rotate. Since the moving seat 24 is connected to the outer thread of the threaded shaft 22 through a ball nut pair, the moving seat 24 moves downward along the threaded shaft 22 during the rotation of the threaded shaft 22. At the same time, the moving seat 24 drives the flip box 25 to move, and the flip box 25 drives the suction cup clamp 26 to move through the connecting pipe 28 until the suction cup clamp 26 moves to contact and adsorb and connect with the circuit board; thereby, the circuit board can be clamped, and then the threaded shaft 22 is controlled to reverse, and the moving seat 24 drives the flip box 25 to move in the opposite direction, and the flip box 25 is turned over. 25 drives the circuit board to move upward through the suction cup clamp 26, and then starts the motor b. The output end of the motor b drives the power shaft 23 to rotate, and the power shaft 23 drives the turning box 25 to rotate. The turning box 25 drives the circuit board to turn over through the suction cup clamp 26. After the circuit board is turned over, the threaded shaft 22 drives the moving seat 24 to move downward again, so that the turning box 25 drives the turned circuit board to return to the initial position. In this way, the turning of the circuit board can be automatically completed, saving manpower for turning and improving the processing efficiency of the circuit board. In addition, the suction cup clamp 26 is used to adsorb and connect with the circuit board. On the one hand, the clamping is more stable, and on the other hand, it avoids damage to the circuit board.

[0029] The cleaning mechanism 3 includes a collecting box 31 located on one side of the bracket 1, an air pump 32 is arranged inside the collecting box 31, an air cushion 33 located inside the collecting box 31 is installed at the air outlet end of the air pump 32, an air outlet pipe 34 is connected to the air outlet end of the air pump 32, an air suction pipe 35 is installed at the air suction end of the air pump 32, a push rod 38 is installed inside the air outlet pipe 34 and the air suction pipe 35, a transition pipe 37 is connected to the connecting pipe 28, a sealing rod 39 is slid inside the transition pipe 37; the air outlet end of the air pump 32 transports the gas to the air cushion 33 to expand it, and the conveying track transports the circuit board to a positioning When the turning box 25 is placed, the turning box 25 moves toward the circuit board on the bracket 1 through the moving seat 24, and the turning box 25 drives the connecting pipe 28 and the suction cup gripper 26 to move synchronously. When the transition pipe 37 on the connecting pipe 28 moves to a certain position, it contacts the exhaust pipe 35. At this time, the ejector rod 38 inside the exhaust pipe 35 extends into the transition pipe 37 and lifts the sealing rod 39. The exhaust pipe 35 exhausts the suction cup gripper 26 by connecting with the connecting pipe 28, so that the suction cup gripper 26 is stably adsorbed and connected to the circuit board; an injection frame 36 is fixed on the outside of the air cushion 33, and an injection nozzle is provided at the edge of the injection frame 36;

[0030] See also Figures 3 to 6As shown, in the process of the flip box 25 driving the suction cup gripper 26 to move downward and approach the circuit board, the air pump 32 is started, and the air outlet of the air pump 32 inflates the inside of the air cushion 33 to expand the air cushion 33. Since the air cushion 33 is located below the circuit board, it can play a preventive effect during the flipping or resetting of the circuit board. If the circuit board falls from the conveying track or the suction cup gripper 26 during the flipping process, the air cushion 33 can play a buffering effect to prevent the circuit board from falling directly to the ground, causing damage and increasing costs.

[0031] When the flip box 25 drives the suction cup gripper 26 to move to a certain position, the push rod 38 inside one end of the exhaust pipe 35 will extend into the interior of the transition pipe 37, and the push rod 38 will lift the sealing rod 39 inside the transition pipe 37. When the suction cup gripper 26 contacts the circuit board, the push rod 38 will lift the sealing rod 39 to the top of the transition pipe 37. At this time, the transition pipe 37 will be connected with the two groups of push rods 38. Since one end of the exhaust pipe 35 also gradually extends into the interior of the transition pipe 37 and is connected with the push rod 38, and since the exhaust pipe 35 is connected to the exhaust end of the air pump 32 at this time, the suction cup gripper 26 can be evacuated by using one end of the exhaust pipe 35 to make the suction cup gripper 26 and the circuit board adsorbed more firmly. Therefore, while the suction cup gripper 26 and the circuit board are adsorbed together, the suction pipe 35 can be used to evacuate the suction cup gripper 26 to further improve the stability of the connection between the suction cup gripper 26 and the circuit board, thereby improving the stability of the circuit board flipping work.

[0032] It is also noted that the exhaust pipe 35 is L-shaped and can be exhausted at both ends, and one end of the exhaust pipe 35 is decompressed to avoid excessive exhaust pressure during the process of connecting the exhaust end of the exhaust pipe 35 with the connecting pipe 28, which causes the suction cup gripper 26 to be excessively adsorbed on the circuit board, thereby affecting the quality of the circuit board;

[0033] When the flip box 25 drives the circuit board to move upwards through the suction cup gripper 26, the top rod 38 at one end of the exhaust pipe 35 gradually moves out of the transition pipe 37. At this time, the sealing rod 39 inside the transition pipe 37 gradually returns to its original position. At the same time, the sealing rod 39 returns to its original position and can seal the transition pipe 37 and the connecting pipe 28 again, thereby maintaining the sealing between the connecting pipe 28 and the suction cup gripper 26 and the adsorption stability of the suction cup gripper 26 and the circuit board.

[0034] After the flip box 25 drives the circuit board to move upward to a certain position through the suction cup gripper 26, the motor b is started, and the motor b drives the flip box 25 to flip through the power shaft 23. The flip box 25 drives the circuit board to flip through the suction cup gripper 26. After the circuit board is flipped, the flip box 25 drives the circuit board to move downward again through the suction cup gripper 26. In the process of the circuit board moving to the conveying track, since the transition pipe 37 is not on the axis of the power shaft 23, the transition pipe 37 is no longer in the original position after the transition pipe 37 follows the circuit board to flip. At this time, the transition pipe 37 will be located above the air outlet pipe 34. When the transition pipe 37 moves downward with the circuit board, the air outlet pipe 34 The top rod 38 of the top portion will extend into the interior of the transition pipe 37 and lift up the sealing rod 39 until the air outlet pipe 34 extends into the interior of the transition pipe 37 and makes the air outlet pipe 34 communicate with the connecting pipe 28 through the transition pipe 37. Since the air outlet pipe 34 is connected to the air outlet end of the air pump 32, the air outlet pipe 34 will supply air to the interior of the connecting pipe 28, thereby canceling the adsorption connection between the suction cup gripper 26 and the circuit board, thereby automatically canceling the connection with the circuit board, and making the circuit board automatically complete the flip and return to the conveying track; in addition, one end of the air outlet pipe 34 is also decompressed to make its air outlet pressure smaller, thereby making the suction cup gripper 26 slowly cancel the adsorption connection with the circuit board;

[0035] The suction cup gripper 26 is used to stably adsorb and automatically flip the circuit board, and then return to the initial position, thereby ensuring that the circuit board remains stable and does not deviate during the flipping process, and that the initial position remains unchanged when the circuit board is reset to the conveying track, thereby making the subsequent conveying work more stable;

[0036] When the air pump 32 is working, the air outlet of the air pump 32 expands the air cushion 33 while continuously inflating the inside of the air cushion 33. The gas inside the air cushion 33 will be ejected through the jet nozzle on the jet frame 36. Since the jet nozzle is located below the circuit board, the circuit board can be continuously cleaned to prevent dust on the circuit board from affecting subsequent processing.

[0037] The pre-tightening mechanism 4 includes a sealing block 41 sliding inside the flip box 25, a second magnetic block 46 is provided on one side of the sealing block 41, and a first magnetic block 43 sliding along the outside of the flip box 25 is provided on the outside of the flip box 25, and the first magnetic block 43 drives the sealing block 41 to move by magnetically adsorbing and connecting with the second magnetic block 46 when sliding; when the flip box 25 drives the circuit board to flip, the first magnetic block 43 slides along the outside of the flip box 25 due to its own gravity, and the first magnetic block 43 drives the second magnetic block 46 to move by magnetic attraction. The second magnetic block 46 drives the sealing block 41 to move inside the flip box 25. During the movement of the sealing block 41, the flip box 25 is used to further extract the internal gas of the connecting pipe 28. A slider 42 for installing the first magnetic block 43 is slidably arranged on the outer side of the flip box 25. Rollers 44 are installed at both the upper and lower ends of the slider 42. A limiting groove 45 for the movement of the roller 44 is provided on the flip box 25. A compression spring 47 is fixed inside the flip box 25. One end of the compression spring 47 is fixedly connected to the sealing block 41.

[0038] See also Figures 4 to 7 As shown, in the process of the flip box 25 driving the circuit board to flip, the circuit board and the flip box 25 are deflected. At this time, the slider 42 and the first magnetic block 43 on the outside of the flip box 25 will move along the limiting groove 45 through the roller 44 due to their own gravity. Since the first magnetic block 43 is magnetically connected with the second magnetic block 46, the slider 42 moves and the second magnetic block 46 is driven to move by the magnetic force. When the second magnetic block 46 moves, the sealing block 41 is driven to move inside the flip box 25. At the same time, the sealing block 41 squeezes the compression spring 47; see Figure 4 As shown, for example, the turning box 25 drives the circuit board to turn counterclockwise, and the sealing block 41 will move along the turning direction of the circuit board. At the same time, the movement of the sealing block 41 will use the turning box 25 to extract a certain amount of gas inside the connecting tube 28, thereby increasing the adsorption force between the right suction cup gripper 26 and the circuit board during the turning process of the circuit board, which can play a pre-tightening role and avoid the positions of the left suction cup gripper 26 and the right suction cup gripper 26 being not on the same horizontal plane during the turning process of the circuit board, resulting in different adsorption forces of the suction cup grippers 26 on the circuit board on both sides, which may cause the circuit board to deviate; The magnetic attraction force of the first magnetic block 43 and the second magnetic block 46 is much greater than the extrusion force of the sealing block 41 on the compression spring 47. Therefore, in the process of the slider 42 moving along the outside of the flip box 25, the magnetic attraction force of the first magnetic block 43 and the second magnetic block 46 is sufficient to drive the sealing block 41 to squeeze the compression spring 47; in addition, if the slider 42 does not move along the outside of the flip box 25 during the flipping of the circuit board, it can be explained that the adsorption force between the suction cup clamp 26 and the circuit board is sufficient, and the sealing block 41 can no longer use the flip box 25 to extract the internal gas of the connecting tube 28.

[0039] Working principle: After the circuit board is transported to a certain position through the conveying track, the motor a21 is started, and the output end of the motor a21 drives the threaded shaft 22 to rotate. Since the moving seat 24 is connected to the outer thread of the threaded shaft 22 through a ball nut pair, the moving seat 24 moves downward along the threaded shaft 22 during the rotation of the threaded shaft 22. At the same time, the moving seat 24 drives the flip box 25 to move, and the flip box 25 drives the suction cup clamp 26 to move through the connecting pipe 28 until the suction cup clamp 26 moves to contact and adsorb and connect with the circuit board; in the process of the flip box 25 driving the suction cup clamp 26 to move downward and close to the circuit board, the air pump 32 is started, and the air outlet end of the air pump 32 inflates the inside of the air cushion 33 to expand the air cushion 33. Since the air cushion 33 is located below the circuit board, it can play a preventive effect during the flipping or resetting of the circuit board; when the flip box 25 drives the suction cup clamp 26 to move When it reaches a certain position, the push rod 38 inside one end of the exhaust pipe 35 will extend into the interior of the transition pipe 37, and the push rod 38 will lift the sealing rod 39 inside the transition pipe 37. When the suction cup clamp 26 contacts the circuit board, the push rod 38 will lift the sealing rod 39 to the top of the transition pipe 37. At this time, the transition pipe 37 will be connected to the two groups of push rods 38. Since one end of the exhaust pipe 35 also gradually extends into the interior of the transition pipe 37 and is connected to the push rod 38, and since the exhaust pipe 35 is connected to the exhaust end of the air pump 32 at this time, the suction cup clamp 26 can be evacuated by connecting one end of the exhaust pipe 35 with the push rod 38, so that the suction cup clamp 26 and the circuit board are adsorbed more firmly. Therefore, while the suction cup clamp 26 and the circuit board are adsorbed together, the suction pipe 35 can be used to evacuate the inside of the suction cup clamp 26 to further improve the stability of the connection between the suction cup clamp 26 and the circuit board.

[0040] Then the threaded shaft 22 is controlled to reverse, the moving seat 24 drives the flip box 25 to move in the opposite direction, and the flip box 25 drives the circuit board to move upward through the suction cup clamp 26. In the process of the flip box 25 driving the circuit board to move upward through the suction cup clamp 26, the top rod 38 inside one end of the exhaust pipe 35 gradually moves out of the transition pipe 37. At this time, the sealing rod 39 inside the transition pipe 37 is gradually reset. At the same time, the reset of the sealing rod 39 can seal the transition pipe 37 and the connecting pipe 28 again, thereby maintaining the sealing between the connecting pipe 28 and the suction cup clamp 26, and maintaining the adsorption stability of the suction cup clamp 26 and the circuit board; then start the motor b, and the output end of the motor b drives the power shaft 23 The power shaft 23 drives the flip box 25 to rotate, and the flip box 25 drives the circuit board to flip through the suction cup clamp 26; in the process of the flip box 25 driving the circuit board to flip, since the circuit board and the flip box 25 are deflected, the slider 42 and the first magnetic block 43 on the outside of the flip box 25 will move along the limiting groove 45 through the roller 44 due to their own gravity. Since the first magnetic block 43 is magnetically connected with the second magnetic block 46, the slider 42 moves and the second magnetic block 46 is driven to move by the magnetic force. When the second magnetic block 46 moves, it drives the sealing block 41 to move inside the flip box 25, and at the same time, the sealing block 41 squeezes the compression spring 47; see Figure 4 As shown, for example, the turning box 25 drives the circuit board to turn counterclockwise, and the sealing block 41 will move along the turning direction of the circuit board. At the same time, the movement of the sealing block 41 will use the turning box 25 to extract a certain amount of gas inside the connecting pipe 28, thereby increasing the adsorption force of the right suction cup gripper 26 and the circuit board during the turning process of the circuit board, which can play a pre-tightening role;

[0041] After the circuit board is flipped, the flip box 25 drives the circuit board to move downward again through the suction cup clamp 26. In the process of the circuit board moving to the conveying track, since the transition tube 37 is not on the axis of the power shaft 23, the transition tube 37 is no longer in the original position after following the circuit board to flip. At this time, the transition tube 37 will be located above the air outlet pipe 34. When the transition tube 37 follows the circuit board to move downward, the push rod 38 inside the air outlet pipe 34 will extend into the transition tube 37 and lift the sealing rod 39 until the air outlet pipe 34 extends into the transition tube 37 and connects the air outlet pipe 34 with the connecting pipe 28 through the transition tube 37. Since the air outlet pipe 34 is connected to the air outlet end of the air pump 32, the air outlet pipe 34 will supply air to the inside of the connecting pipe 28, thereby canceling the adsorption connection between the suction cup clamp 26 and the circuit board, thereby automatically canceling the connection with the circuit board, so that the circuit board is automatically reset to the conveying track after completing the flip.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turning device for processing a circuit board, comprising a bracket (1), characterized in that: The support (1) is provided with a flipping mechanism (2) for flipping the circuit board, the flipping mechanism (2) comprises a moving seat (24) moving on the support (1), a flipping box (25) rotating on the moving seat (24), a pre-tightening mechanism (4) for assisting the circuit board to maintain stability during flipping, the flipping box (25) is connected with a rectangular connecting pipe (28), and the connecting pipe (28) is connected with a suction cup clamp (26) for adsorbing and fixing the edge of the circuit board; one side of the support (1) cooperates with the suction cup clamp (26) to stably clamp the circuit board for cleaning (3); The cleaning mechanism (3) comprises a collecting box (31) located on one side of the bracket (1), an air pump (32) is arranged inside the collecting box (31), an air outlet end of the air pump (32) is installed with an air cushion (33) located inside the collecting box (31), the air outlet end of the air pump (32) is connected with an air outlet pipe (34), an air suction pipe (35) is installed at the air suction end of the air pump (32), a push rod (38) is installed inside the air outlet pipe (34) and the air suction pipe (35), a transition pipe (37) is connected to the connecting pipe (28), a sealing rod (39) is slid inside the transition pipe (37); the air outlet end of the air pump (32) transports the gas to the air cushion (33), and the air outlet end of the air pump (32) transports the gas to the air cushion (33). 3) the inside of the suction pipe (35) is expanded, and when the conveying track conveys the circuit board to a certain position, the flip box (25) moves closer to the circuit board on the bracket (1) through the moving seat (24), and the flip box (25) drives the connecting pipe (28) and the suction cup gripper (26) to move synchronously. When the transition pipe (37) on the connecting pipe (28) moves to a certain position, it contacts the exhaust pipe (35). At this time, the push rod (38) inside the exhaust pipe (35) extends into the transition pipe (37) and lifts the sealing rod (39). The exhaust pipe (35) exhausts the suction cup gripper (26) by connecting with the connecting pipe (28), so that the suction cup gripper (26) is stably adsorbed and connected to the circuit board; The pre-tightening mechanism (4) comprises a sealing block (41) sliding inside the flip box (25), a second magnetic block (46) being arranged on one side of the sealing block (41), and a first magnetic block (43) sliding along the outside of the flip box (25) being arranged on the outside of the flip box (25), and the first magnetic block (43) driving the sealing block (41) to move by magnetically connecting with the second magnetic block (46) when sliding; when the flip box (25) drives the circuit board to flip, the first magnetic block (43) slides along the outside of the flip box (25) due to its own gravity, the first magnetic block (43) drives the second magnetic block (46) to move by magnetic attraction, and the second magnetic block (46) drives the sealing block (41) to move inside the flip box (25), and in the process of the movement of the sealing block (41), the flip box (25) is used to further extract the internal gas of the connecting pipe (28).

2. A turning device for processing a circuit board according to claim 1, characterized in that: A motor a (21) is fixed on the bracket (1), a threaded shaft (22) is fixedly mounted on the output end of the motor a (21), the threaded shaft (22) rotates on the bracket (1), and the movable seat (24) is connected to the outer thread of the threaded shaft (22) via a ball nut pair.

3. A turning device for processing a circuit board according to claim 1, characterized in that: A motor b for driving the flip box (25) to flip is installed on one side of the moving seat (24), and the output end of the motor b is connected to the power shaft (23).

4. A turning device for processing a circuit board according to claim 1, characterized in that: The connecting pipes (28) are in two groups and are respectively connected to the two ends of the turning box (25), and the sucker grippers (26) are in four groups and are distributed on the two groups of connecting pipes (28).

5. The circuit board processing turning device according to claim 1, characterized in that: One end of the two groups of connecting pipes (28) are both connected to the transition pipe (37).

6. A turning device for processing a circuit board according to claim 1, characterized in that: An air jet frame (36) is fixed on the outer side of the air cushion (33), and an air jet nozzle is provided at the edge of the air jet frame (36).

7. A circuit board processing turning device according to claim 1, characterized in that: A slider (42) for mounting a first magnetic attraction block (43) is slidably disposed on the outer side of the flip box (25), and rollers (44) are mounted on both upper and lower ends of the slider (42).

8. A turning device for processing a circuit board according to claim 7, characterized in that: The overturn box (25) is provided with a limiting groove (45) for the movement of the roller (44).

9. A circuit board processing turning device according to claim 1, characterized in that: A compression spring (47) is fixed inside the turnover box (25), and one end of the compression spring (47) is fixedly connected to the sealing block (41).

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