A general-purpose feeding device for printed circuit board production and processing

Abstract

The present invention relates to the technical field of feeding devices, and in particular to a general feeding device based on the production and processing of printed circuit boards, comprising a frame, a Z-axis moving platform I for transporting the circuit board upwards is arranged in the frame, and an adsorption-type feeding mechanism is arranged on the top of the frame, and the adsorption-type feeding mechanism includes two front and rear Z-axis moving platforms II arranged on the top of the frame, and a hexagonal rotating drum is rotatably connected to the rear Z-axis moving platform II, and three rotating shafts are rotatably connected to the hexagonal rotating drum at uniform intervals along the circumferential direction, and multiple suction cup grabbing plates are connected to the three rotating shafts. The present invention simplifies the moving path, and by providing three multiple suction cup grabbing plates, the circuit board feeding operation can be carried out continuously, thereby improving the feeding speed, and the simplification of the moving path can also reduce the occupied space, optimize the space utilization of the production workshop, and improve the space utilization rate of the workshop, so that the layout of the production line can be adjusted more flexibly.

Description

Technical Field

[0001] The present invention relates to the technical field of feeding devices, and in particular to a universal feeding device based on the production and processing of printed circuit boards. Background Art

[0002] In the production and processing of printed circuit boards (PCBs), the loading process is a very critical link. In order to improve production efficiency and automation level, the multi-suction cup grabber plate technology is currently commonly used to grab the PCB and place it on the belt conveyor, and then the belt conveyor conveys the PCB to the designated location. Specifically, the multi-suction cup grabber plate is a grabber equipped with multiple suction cups that can absorb the PCB to ensure that the PCB will not be offset or damaged during transportation. This grabber plate is usually installed on a three-axis mobile platform to enable precise movement forward and backward, left and right, and up and down.

[0003] In the prior art, the loading method of placing PCBs on a belt conveyor device by driving a three-axis mobile platform to drive a multi-suction cup grabbing plate to move forward, backward, left, right, up and down in three axes. The moving path is complex, and the next PCB needs to be grabbed and loaded after going back and forth through a complex moving path. This will significantly increase the time required for a single loading, thereby reducing the loading speed. The complex moving path will increase the moving distance and the number of direction changes of the equipment, which will lead to reduced movement efficiency, especially when frequent changes in direction are required, which may cause deceleration and waiting. In addition, complex moving paths usually require a larger working space, which may limit the layout flexibility of the production line, especially in an environment with limited space. Summary of the invention

[0004] The purpose of the present invention is to provide a universal feeding device based on the production and processing of printed circuit boards, which can simplify the moving path and increase the feeding speed in order to solve the above-mentioned problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a universal feeding device based on the production and processing of printed circuit boards, including a frame, a Z-axis moving platform I for transporting the circuit boards upward is provided in the frame, an adsorption-type feeding mechanism is provided on the top of the frame, the adsorption-type feeding mechanism includes two front and rear Z-axis moving platforms II arranged on the top of the frame, a hexagonal rotating drum is rotatably connected to the rear Z-axis moving platform II, and the six faces of the hexagonal rotating drum are all open-type settings, a motor I is installed on the front Z-axis moving platform II, and the output shaft of the motor I is connected to the hexagonal rotating drum, three rotating shafts are rotatably connected to the hexagonal rotating drum at uniform intervals along the circumferential direction, and multiple suction cup grabbing plates are connected to the three rotating shafts, a torsion spring is connected between the rotating shaft and the hexagonal rotating drum, and a driving mechanism for driving the rotating shaft to rotate is provided on the hexagonal rotating drum.

[0006] Preferably, the driving mechanism includes a rotating shaft and a driving gear. Three rotating shafts are rotatably connected at uniform intervals along the circumferential direction on the hexagonal rotating drum, each rotating shaft is located between two adjacent rotating shafts, and each rotating shaft is connected to a driving gear. Each multi-suction cup grabbing plate is connected to an arcuate rack on the side facing the center of the hexagonal rotating drum, and the three arcuate racks are respectively meshed with three driving gears. Three gear sets are rotatably connected at uniform intervals along the circumferential direction on the front side of the hexagonal rotating drum, and the three gear sets are respectively transmission-connected with the three rotating shafts. A spur rack is connected to the guide rail of the front Z-axis moving platform II, and as the hexagonal rotating drum moves downward, the gear set moves downward and can mesh with the spur rack.

[0007] Preferably, three connecting plates are connected to the hexagonal drum at evenly spaced intervals along the circumferential direction, each connecting plate is located between two adjacent multi-suction cup grabbing plates, each connecting plate is connected to an arc guide rail, the arc guide rail is located inside the hexagonal drum, and three arc racks are respectively slidably connected to the three arc guide rails.

[0008] Preferably, a translation loading mechanism is provided on the right side of the frame, and the translation loading mechanism includes a detachable mobile chassis connected to the lower right part of the frame, an electric slide rail I is installed on the top of the mobile chassis, a telescopic rod is connected to the slider of the electric slide rail I, and a mounting plate is connected to the telescopic rod, and an electric push rod is installed on the slider of the electric slide rail I, and the push rod of the electric push rod is connected to the bottom of the mounting plate, and two front and rear electric slide rails II that can approach and move away from each other are provided on the mounting plate, and a two-way screw rod is rotatably connected to the left side of the mounting plate, and two front and rear nuts are threadedly connected to the two-way screw rod, and the two nuts are respectively connected to the two electric slide rails II, and the sliders of the two electric slide rails II are provided with clamps for clamping circuit boards, and push blocks are connected to the top right sides of the two electric slide rails II, and the two clamps can move to the right to contact the two push blocks respectively, and are pushed away from each other by the two push blocks.

[0009] Preferably, the clamp includes a connecting plate connected to the slider of the electric slide rail II, the connecting plate is slidably connected to a slide plate via a guide rod, a spring is connected between the slide plate and the connecting plate, connecting rods are evenly spaced and connected to the top of the slide plate, the rightmost connecting rod moves to the right and can contact the push block on the same side, and is pushed by the push block to move toward the connecting plate on the same side, a clamping block and a rubber clamping block are connected to the connecting rod, and the rubber clamping block is located on the upper side of the clamping block.

[0010] Preferably, the push block consists of a horizontal section and an inclined section, and the two push blocks are in an eight-shaped shape.

[0011] Preferably, a detection mechanism for detecting the circuit board is provided on the left side of the top of the frame, and the detection mechanism includes a fixed frame connected to the left side of the top of the frame, an industrial camera is installed on the inner top of the fixed frame tilted to the lower right, the lower part of the fixed frame is rotatably connected to a connecting shaft, a material receiving plate is connected to the connecting shaft, and a motor II is installed on the lower part of the fixed frame, and the output shaft of motor II is connected to the connecting shaft.

[0012] Preferably, a belt conveyor for conveying circuit boards is provided on the left side of the frame, and the belt conveyor is located directly below the receiving plate and to the left of the multi-suction cup grabbing plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The multi-suction cup grabbing plate of the present invention only needs to rotate and move up and down with the hexagonal rotating drum to place the circuit board on the belt conveyor to complete the loading. Compared with the loading method in the prior art in which a three-axis moving platform is used to drive the multi-suction cup grabbing plate to move forward, backward, left, right, up and down in three axes to place the circuit board on the belt conveyor, the present invention simplifies the moving path, and by setting three multi-suction cup grabbing plates, the circuit board loading operation can be carried out continuously, thereby improving the loading speed. In addition, the simplification of the moving path can also reduce the occupied space, optimize the space utilization of the production workshop, and improve the space utilization rate of the workshop, thereby being able to more flexibly adjust the layout of the production line.

[0015] 2. Through the coordination of electric slide rail I, mounting plate, electric slide rail II and fixture, the circuit board can be accurately placed on the workbench of the circuit board processing equipment to ensure the accurate placement of the circuit board and improve the processing accuracy of the circuit board.

[0016] 3. The circuit board can be photographed by an industrial camera to detect whether there are defects on the circuit board. The motor II can drive the connecting shaft to drive the receiving plate to rotate and receive the defective circuit board, and guide the defective circuit board to the belt conveyor for transportation, thereby realizing the distinction between defective circuit boards and qualified circuit boards, ensuring that defective circuit boards are effectively picked out, and only qualified circuit boards can enter subsequent processing, thereby improving the quality standards of the final products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the installation of the adsorption-type feeding mechanism and the driving mechanism of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the adsorption-type feeding mechanism and the driving mechanism of the present invention.

[0021] Figure 5 The three-dimensional structure diagram of the driving mechanism of the present invention is shown in FIG. Figure 1 .

[0022] Figure 6 The three-dimensional structure diagram of the driving mechanism of the present invention is shown in FIG. Figure 2 .

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the translation feeding mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the installation of the clamp of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the clamp of the present invention.

[0026] In the figure: 1-frame, 2-Z-axis moving platform Ⅰ, 31-Z-axis moving platform Ⅱ, 32-hexagonal drum, 33-motor Ⅰ, 34-rotating shaft, 35-multi-suction cup grab plate, 36-torsion spring, 41-rotating shaft, 42-driving gear, 43-arc rack, 44-gear set, 45-spur rack, 51-connecting plate, 52-arc guide rail, 61-moving chassis, 62-electric slide rail Ⅰ, 6 3-telescopic rod, 64-mounting plate, 65-electric push rod, 66-electric slide rail II, 67-bidirectional screw, 68-nut, 7-clamp, 71-connecting plate, 72-slide plate, 73-spring, 74-connecting rod, 75-clamping block, 76-rubber clamping block, 8-push block, 91-fixed bracket, 92-industrial camera, 93-connecting shaft, 94-receiving plate, 95-motor II, 10-belt conveyor. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] A universal feeding device for printed circuit board production and processing, see Figure 1-Figure 5, including a frame 1, a Z-axis moving platform Ⅰ2 for transporting the circuit board upward is provided in the frame 1, an adsorption-type feeding mechanism is provided on the top of the frame 1, and the adsorption-type feeding mechanism includes two front and rear Z-axis moving platforms Ⅱ31 arranged on the top of the frame 1, a hexagonal rotating drum 32 is rotatably connected to the rear Z-axis moving platform Ⅱ31, and the six faces of the hexagonal rotating drum 32 are all open-type settings, a motor Ⅰ33 is installed on the front Z-axis moving platform Ⅱ31, and the output shaft of the motor Ⅰ33 is connected to the hexagonal rotating drum 32, and the hexagonal rotating drum 32 is rotatably connected with three uniformly spaced rotating drums 32 along the circumferential direction. The three rotating shafts 34 are connected to a multi-suction cup grabbing plate 35. Two torsion springs 36 are symmetrically connected between the rotating shaft 34 and the hexagonal rotating drum 32. The hexagonal rotating drum 32 is provided with a driving mechanism for driving the rotating shaft 34 to rotate. The driving mechanism includes a rotating shaft 41 and a driving gear 42. The hexagonal rotating drum 32 is rotatably connected with three rotating shafts 41 evenly spaced along the circumference. Each rotating shaft 41 is located between two adjacent rotating shafts 34. Each rotating shaft 41 is connected to a driving gear 42. Each multi-suction cup grabbing plate 35 faces the center of the hexagonal rotating drum 32. One side is connected with an arc rack 43, and the three arc racks 43 are respectively meshed with three driving gears 42. The front side of the hexagonal drum 32 is rotatably connected with three gear sets 44 at uniform intervals along the circumferential direction. The three gear sets 44 are respectively connected to the three rotating shafts 41. The gear set 44 consists of a large gear, a middle gear and a small gear. The large gear is rotatably connected to the front side of the hexagonal drum 32, the middle gear is connected to the front side of the large gear, the small gear is connected to the front side of the rotating shaft 41, and the small gear is meshed with the large gear. A spur rack 45 is connected to the guide rail of the front Z-axis moving platform II 31. As the hexagonal drum 32 moves downward, the middle gear on the gear set 44 moves downward to engage with the spur rack 45. Three connecting plates 51 are connected to the hexagonal drum 32 at evenly spaced intervals along the circumferential direction. Each connecting plate 51 is located between two adjacent multi-suction cup grabbing plates 35. Each connecting plate 51 is connected to an arc guide rail 52. The arc guide rail 52 is located in the hexagonal drum 32. The three arc racks 43 are respectively slidably connected to the three arc guide rails 52. The arc racks 43 can be supported and guided by the arc guide rails 52 to ensure their stability and accuracy during movement.

[0029] First, place the device on the left side of the belt conveyor, and then neatly stack the printed circuit boards from bottom to top on the Z-axis moving platform Ⅰ2. The circuit boards can be transported upwards through the Z-axis moving platform Ⅰ2, and the hexagonal rotating drum 32 and the motor Ⅰ33 can be driven to move downwards and upwards through the Z-axis moving platform Ⅱ31. The Z-axis moving platform is a prior art and will not be described in detail here. The hexagonal rotating drum 32 moves downwards to drive the multi-suction cup grabbing plate 35 thereon to move downwards, so that the suction cups on the multi-suction cup grabbing plate 35 at the bottom are in close contact with the circuit board at the top of the Z-axis moving platform Ⅰ2, and then the multi-suction cup grabbing plate 35 is controlled to absorb the circuit board. The multi-suction cup grabbing plate 35 is a prior art and will not be described in detail here. The hexagonal rotating drum 32 moves upwards to drive the multi-suction cup grabbing plate 35 thereon to move upwards, so that the circuit board absorbed by the multi-suction cup grabbing plate 35 moves upwards and separates from the circuit board on the Z-axis moving platform Ⅰ2. Subsequently, the control motor I33 drives the hexagonal drum 32 to rotate, so that the next empty multi-suction cup grabbing plate 35 can be rotated to the lower side for subsequent circuit board grabbing operations, and the multi-suction cup grabbing plate 35 grabbing the circuit board is rotated to the right. The rotation of the hexagonal drum 32 drives the gear set 44 to rotate, and rotates until the middle gear on the gear set 44 on the upper right side is located above the spur rack 45. Subsequently, the hexagonal drum 32 moves downward and upward again, so that the middle gear on the upper right side gear set 44 meshes with the spur rack 45. Through the meshing action of the middle gear and the spur rack 45, the upper right side gear set 44 moves downward, driving the upper right side rotation shaft 41 to drive the upper drive gear 42 to rotate, thereby driving the upper right side arc rack 43 to rotate, and then driving the right multi-suction cup grabbing plate 35 to rotate downward to a horizontal state. The right multi-suction cup grab plate 35 moves downward with the hexagonal drum 32 and rotates downward to a horizontal state to place the circuit board flat on the belt conveyor. Then, the suction cups on the right multi-suction cup grab plate 35 are controlled to release the circuit board, and the circuit board is then conveyed to the designated position to the right by the belt conveyor. When the upper right gear set 44 moves upward with the hexagonal drum 32, the middle gear and the spur rack 45 mesh, driving the upper right rotating shaft 41 to drive the upper driving gear 42 to reverse, thereby pushing the upper right arc rack 43 to reverse, and then pulling the right multi-suction cup grab plate 35 to rotate upward and reset. The multi-suction cup grabbing plate 35 rotates downward, driving the rotating shaft 34 to rotate and compressing the torsion spring 36. The multi-suction cup grabbing plate 35 rotates upward, driving the rotating shaft 34 to reverse, and the torsion spring 36 returns to its original state. The rotating shaft 34 can be limited by the torsion spring 36, thereby limiting the multi-suction cup grabbing plate 35 to prevent the multi-suction cup grabbing plate 35 from rotating downward by itself.In this way, the multi-suction cup grabbing plate 35 of the present device only needs to rotate and move up and down with the hexagonal rotating drum 32 to place the circuit board on the belt conveyor to complete the loading. Compared with the prior art, the multi-suction cup grabbing plate 35 is driven by a three-axis moving platform to move forward, backward, left, right, up and down to place the circuit board on the belt conveyor, the present device simplifies the moving path, and by setting three multi-suction cup grabbing plates 35, the circuit board loading operation can be carried out continuously, thereby improving the loading speed. In addition, the simplification of the moving path can also reduce the occupied space, optimize the space utilization of the production workshop, and improve the space utilization rate of the workshop, so that the layout of the production line can be adjusted more flexibly.

[0030] See also Figure 1 , Figure 6 , Figure 7 and Figure 8 A translation feeding mechanism is provided on the right side of the frame 1, and the translation feeding mechanism includes a moving chassis 61 connected to the lower right part of the frame 1 by bolts, and wheels are connected to the four corners of the bottom of the moving chassis 61. Two front and rear electric slide rails Ⅰ 62 are installed on the top of the moving chassis 61, and telescopic rods 63 are connected to the sliders of the two electric slide rails Ⅰ 62. A mounting plate 64 is connected between the two telescopic rods 63. An electric push rod 65 is also installed on the sliders of the two electric slide rails Ⅰ 62 respectively. The electric push rod 65 is located on the left side of the telescopic rod 63, and the push rod of the electric push rod 65 is connected to the bottom of the mounting plate 64. Two slide grooves are symmetrically opened on the top of the mounting plate 64, and the two slide grooves are slidably connected to the electric slide rails Ⅱ 66. A two-way screw rod 67 is rotatably connected to the left side of the mounting plate 64, and two front and rear nuts 68 are threadedly connected to the two-way screw rod 67. The two nuts 68 are respectively connected to the two electric slide rails Ⅱ 66. The sliders of the electric slide rails 6 are provided with a clamp 7 for clamping the circuit board. The clamp 7 includes a connecting plate 71 connected to the slider of the electric slide rail II 66. Two guide rods are symmetrically connected to the connecting plate 71. A slide plate 72 is slidably connected between the two guide rods. The guide rod is in a T-shape and can limit the slide plate 72 to prevent the slide plate 72 from sliding off the guide rod. A spring 73 is sleeved on the guide rod. The spring 73 abuts against the slide plate 72 and the connecting plate 71. The top of the slide plate 72 is from left to right. There are three connecting rods 74 connected at even intervals on the right, and a clamping block 75 and a rubber clamping block 76 are connected to the connecting rod 74. The rubber clamping block 76 is located on the upper side of the clamping block 75. The top right side of the two electric slide rails II 66 are connected with a push block 8. The push block 8 consists of a horizontal section and an inclined section. The two push blocks 8 are in an eight-shaped shape. The rightmost connecting rod 74 moves to the right to contact the push block 8 on the same side, and is pushed by the inclined section on the push block 8 to move toward the direction close to the connecting plate 71 on the same side.

[0031] The multi-suction cup grabbing plate 35 on the right side moves down with the hexagonal rotating drum 32 and rotates downward to a horizontal state so as to place the circuit board flatly on the rubber clamping block 76. In the process of the circuit board moving down and being placed on the rubber clamping block 76, the circuit board squeezes the rubber clamping block 76 and deforms it. When the circuit board moves down and passes over the rubber clamping block 76, the rubber clamping block 76 returns to its original shape under the action of its own elasticity. Thus, the circuit board can be clamped through the cooperation of the rubber clamping block 76 and the clamping block 75 to avoid displacement during subsequent movement of the circuit board. Subsequently, the electric slide rail Ⅰ 62 is controlled to drive the telescopic rod 63 and the electric push rod 65 to move rightward, so that the mounting plate 64 drives the electric slide rail Ⅱ 66 to move rightward to the upper side of the workbench of the circuit board processing equipment, and then the electric slide rail Ⅱ 66 is controlled to drive the clamp 7 to move rightward. When the rightmost connecting rod 74 moves rightward to contact the push block 8 on the same side, under the pushing action of the inclined section on the push block 8, the rightmost connecting rod 74 moves toward the direction close to the connecting plate 71 on the same side, so that the front and rear connecting plates 71 can move away from each other, and the spring 73 is compressed accordingly, so that the clamping blocks 75 on the front and rear sides can move away from each other to release the circuit board, and the circuit board falls onto the workbench of the circuit board processing equipment; in this way, the circuit board can be accurately placed on the workbench of the circuit board processing equipment, ensuring the accurate placement of the circuit board to improve the processing accuracy of the circuit board. After the circuit board is placed on the workbench of the circuit board processing equipment, the electric slide rail I 62 is first controlled to drive the telescopic rod 63 and the electric push rod 65 to drive the mounting plate 64 to move to the left and reset, and then the electric slide rail II 66 is controlled to drive the clamp 7 to move to the left and reset. When the rightmost connecting rod 74 moves to the left to disengage the push block 8 on the same side, the front and rear connecting plates 71 can be moved closer to each other under the reset action of the spring 73. The two nuts 68 can be rotated to drive the two electric slide rails II 66 away from each other, so that the two clamps 7 can be moved away from each other to adjust the distance to accommodate the clamping of circuit boards of different specifications. The height of the fixture 7 can be adjusted according to the height of the workbench of the circuit board processing equipment to adapt to circuit board processing equipment of different heights, so as to prevent the circuit board from falling directly from a high place and being damaged. When the circuit board is lowered onto the clamping block 75, the push rod of the electric push rod 65 is controlled to retract to pull the mounting plate 64 and the fixture 7 downward. When the mounting plate 64 moves to the left and resets, the push rod of the electric push rod 65 is controlled to extend to push the mounting plate 64 to drive the fixture 7 to move upward and reset. When the translation loading mechanism is not needed, the mobile chassis 61 can be removed from the frame 1, and the translation loading mechanism can also be used as a trolley to independently carry the circuit board.

[0032] See also Figure 1 and Fig. 9A detection mechanism for detecting circuit boards is provided on the left side of the top of the frame 1. The detection mechanism includes a fixed frame 91 connected to the left side of the top of the frame 1. The fixed frame 91 is in an inverted U shape. An industrial camera 92 is installed on the inner top of the inverted U-shaped fixed frame 91 tilted to the lower right. A connecting shaft 93 is rotatably connected to the lower part of the fixed frame 91. A receiving plate 94 is connected to the connecting shaft 93. A motor II 95 is installed on the lower rear side of the fixed frame 91. The output shaft of the motor II 95 is connected to the connecting shaft 93. A belt conveyor 10 for conveying circuit boards is provided on the left side of the frame 1. The belt conveyor 10 is located directly below the receiving plate 94 and to the left of the multi-suction cup grabbing plate 35.

[0033] When the circuit board follows the multi-suction cup grab plate 35 and rotates to align with the industrial camera 92, the industrial camera 92 can photograph the circuit board and capture real-time images, and use image analysis to identify whether the circuit board has defects. Visual inspection technology is used here. Visual inspection technology is a prior art and will not be described in detail here. If the circuit board is detected to be a defective product with defects, the controller first controls the motor II 95 to drive the connecting shaft 93 to rotate 45 degrees (the controller is not shown in the figure, the controller is a prior art and will not be described in detail here), thereby driving the receiving plate 94 to rotate 45 degrees, so that the receiving plate 94 is in a tilted state with the left side low and the right side high, close to the multi-suction cup grab plate 35 on the left side. Subsequently, the controller controls the multi-suction cup grab plate 35 that has adsorbed the defective circuit board to release the defective circuit board. Then, it slides down to the receiving plate 94 under the action of its own gravity, and slides down to the belt conveyor 10 through the guide of the receiving plate 94. The defective circuit board can be conveyed to the left by the belt conveyor 10 (the belt conveyor 10 is a prior art and will not be described here). In this way, the defective circuit board and the qualified circuit board can be distinguished and processed, ensuring that the defective circuit board is effectively picked out, and only qualified circuit boards can enter the subsequent processing, thereby improving the quality standard of the final product. After 3 seconds, the controller controls the motor II 95 to drive the connecting shaft 93 to drive the receiving plate 94 to reverse 45 degrees, so that the receiving plate 94 turns back to the vertical state to avoid hindering the next multi-suction cup grab plate 35 from driving the circuit board to rotate to align with the industrial camera 92.

[0034] When the printed circuit boards are neatly stacked from bottom to top on the Z-axis moving platform Ⅰ2, in order to avoid direct contact and scratching between the printed circuit boards, foam pads may be placed between the upper and lower adjacent printed circuit boards as spacers to separate the printed circuit boards and reduce scratches caused by surface friction. After the previous multi-suction cup grabbing plate 35 grabs the printed circuit board, the next multi-suction cup grabbing plate 35 grabs the foam pad. When the industrial camera 92 captures that the multi-suction cup grabbing plate 35 grabs the foam pad, the controller first controls the motor Ⅱ 95 to drive the connecting shaft 93 to drive the receiving plate 94 to rotate 45 degrees to receive the foam pad. Subsequently, the controller controls the multi-suction cup grabbing plate 35 with the foam pad adsorbed to release the foam pad, and the foam pad slides along the receiving plate 94 to the belt conveyor 10 and is transported to the left by the belt conveyor 10. After 3 seconds, the controller controls the motor Ⅱ 95 to drive the connecting shaft 93 to drive the receiving plate 94 to reverse 45 degrees and reset.

[0035] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A universal feeding device for the production and processing of printed circuit boards, comprising a frame (1), wherein a Z-axis moving platform I (2) for transporting the circuit boards upwards is arranged in the frame (1), characterized in that: The top of the frame (1) is provided with an adsorption-type loading mechanism, which includes two front and rear Z-axis moving platforms II (31) arranged on the top of the frame (1), a hexagonal rotating drum (32) is rotatably connected to the rear Z-axis moving platform II (31), and the six faces of the hexagonal rotating drum (32) are all open-type, a motor I (33) is installed on the front Z-axis moving platform II (31), the output shaft of the motor I (33) is connected to the hexagonal rotating drum (32), and the hexagonal rotating drum (32) is evenly spaced along the circumferential direction. Three rotating shafts (34) are connected, and the three rotating shafts (34) are all connected to a multi-suction cup grabbing plate (35). A torsion spring (36) is connected between the rotating shaft (34) and the hexagonal rotating cylinder (32). The hexagonal rotating cylinder (32) is provided with a driving mechanism for driving the rotating shaft (34) to rotate; the driving mechanism includes a rotating shaft (41) and a driving gear (42). The hexagonal rotating cylinder (32) is rotatably connected with three rotating shafts (41) evenly spaced along the circumferential direction, and each rotating shaft (41) is located between two adjacent rotating shafts (34). , each rotating shaft (41) is connected to a driving gear (42), each multi-suction cup grabbing plate (35) is connected to an arc-shaped rack (43) on one side facing the center of the hexagonal rotating drum (32), the three arc-shaped racks (43) are respectively meshed with the three driving gears (42), the front side of the hexagonal rotating drum (32) is rotatably connected to three gear sets (44) at even intervals along the circumferential direction, the three gear sets (44) are respectively connected to the three rotating shafts (41), and the guide rail of the front Z-axis moving platform II (31) is connected to a straight gear. The gear set (44) moves downward with the hexagonal rotating drum (32) and can mesh with the spur rack (45). The hexagonal rotating drum (32) is connected with three connecting plates (51) evenly spaced along the circumferential direction. Each connecting plate (51) is located between two adjacent multi-suction cup grabbing plates (35). Each connecting plate (51) is connected with an arc guide rail (52). The arc guide rail (52) is located in the hexagonal rotating drum (32). The three arc racks (43) are respectively slidably connected to the three arc guide rails (52).

2. A universal feeding device for printed circuit board production and processing according to claim 1, characterized in that: A translation loading mechanism is provided on the right side of the frame (1), the translation loading mechanism comprising a detachable moving chassis (61) connected to the lower right side of the frame (1), an electric slide rail I (62) being installed on the top of the moving chassis (61), a telescopic rod (63) being connected to the slider of the electric slide rail I (62), a mounting plate (64) being connected to the telescopic rod (63), an electric push rod (65) being installed on the slider of the electric slide rail I (62), a push rod of the electric push rod (65) being connected to the bottom of the mounting plate (64), and two front and rear push rods being able to approach each other and The electric slide rails II (66) are spaced apart from each other. The left side of the mounting plate (64) is rotatably connected to a bidirectional screw rod (67). The bidirectional screw rod (67) is threadedly connected to two front and rear nuts (68). The two nuts (68) are respectively connected to the two electric slide rails II (66). The sliders of the two electric slide rails II (66) are provided with a clamp (7) for clamping the circuit board. The top right sides of the two electric slide rails II (66) are connected to a push block (8). The two clamps (7) can move to the right to contact the two push blocks (8) respectively and be pushed by the two push blocks (8) to move away from each other.

3. A universal feeding device for printed circuit board production and processing according to claim 2, characterized in that: The clamp (7) includes a connecting plate (71) connected to a slider of the electric slide rail II (66), a slide plate (72) being slidably connected to the connecting plate (71) via a guide rod, a spring (73) being connected between the slide plate (72) and the connecting plate (71), connecting rods (74) being evenly spaced from the top of the slide plate (72), the rightmost connecting rod (74) moving to the right can contact the push block (8) on the same side thereof, and is pushed by the push block (8) to move in a direction close to the connecting plate (71) on the same side, the connecting rod (74) being connected to a clamping block (75) and a rubber clamping block (76), the rubber clamping block (76) being located on the upper side of the clamping block (75).

4. A universal feeding device for printed circuit board production and processing according to claim 3, characterized in that: The push block (8) is composed of a horizontal section and an inclined section, and the two push blocks (8) are in an eight-shaped shape.

5. A universal feeding device for printed circuit board production and processing according to claim 4, characterized in that: A detection mechanism for detecting the circuit board is provided on the left side of the top of the frame (1), the detection mechanism comprising a fixing frame (91) connected to the left side of the top of the frame (1), an industrial camera (92) is installed on the top of the inner side of the fixing frame (91) tilted to the lower right, a connecting shaft (93) is rotatably connected to the lower part of the fixing frame (91), a material receiving plate (94) is connected to the connecting shaft (93), a motor II (95) is installed on the lower part of the fixing frame (91), and an output shaft of the motor II (95) is connected to the connecting shaft (93).

6. A universal feeding device for printed circuit board production and processing according to claim 5, characterized in that: A belt conveyor (10) for conveying circuit boards is provided on the left side of the frame (1). The belt conveyor (10) is located directly below the material receiving plate (94) and to the left of the multi-suction cup grabbing plate (35).

Images