A PCB board machine

Abstract

The invention discloses a PCB board loading machine, comprising a workbench, a PCB board carrier, which is arranged above the workbench and is used for loading and fixing the PCB board; an adsorption device, which is arranged beside the PCB board carrier and adsorbs the PCB board and a protective film at the same time; a six-axis manipulator, which is installed on the workbench and is drivingly connected with the adsorption device and is used for driving the adsorption device to move so that the adsorption device can take the PCB board from the PCB board carrier; a film separation device, which is arranged above the PCB board carrier and is used for separating the protective film from the PCB board; and a film storage mechanism, which is installed below the workbench and is located beside the PCB board carrier and is used for storing the protective film taken by the film separation device. The invention has a simple structure, small footprint, high productivity and can meet the requirements of loading PCB boards of various specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board processing equipment, in particular to a PCB board processing machine. Background Art

[0002] Solder masking is one of the production processes of PCB printed circuit boards, which protects the circuits on the circuit boards after etching. Before the PCB boards are solder masked, the protective film between the PCB boards, which is used to prevent the two adjacent PCB boards from rubbing against each other, needs to be taken out, and then the PCB boards are transported to the solder mask processing line.

[0003] The existing board loading process requires at least two groups of suction cup manipulators to cooperate to complete the board loading process. One group of suction cup manipulators is used to suck the PCB board, flip the PCB board and transport it to the solder mask pre-treatment line, and the other group is used to suck away the protective film. However, the above board loading process has the following disadvantages: 1. The board loading efficiency is low. Before each board loading, you have to wait for the suction cup manipulator to take away the protective film and put it away before the other group of suction cup manipulators can perform the next board loading action. The waiting time is long and the production capacity is low; 2. It is easy to drop the board. The suction cup position of the suction cup manipulator is fixed, but the hole position on the PCB board is random. Therefore, when the suction cup manipulator absorbs and grabs PCB boards of different specifications, if the suction cup just sucks to the hole position, the adsorption force will become low. Therefore, the problem of board dropping will occur during the transportation of the PCB board, damaging the product; 3. The size is large, and the two sets of devices occupy a large area. For the rising site rental cost, this unreasonable structural setting is difficult to be accepted by the market.

[0004] Therefore, improvement is needed. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a PCB board loading machine which has a simple structure, high production capacity and can meet the requirements of PCB boards of various specifications.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A PCB board loading machine comprises a workbench, a PCB board carrier, which is arranged above the workbench and is used for loading and fixing the PCB board; an adsorption device, which is arranged beside the PCB board carrier and is used for being fitted with the entire surface of the PCB board and adsorbing the PCB board and a protective film at the same time; a six-axis manipulator, which is installed on the workbench and is drivingly connected to the adsorption device and is used for driving the adsorption device to move so that the adsorption device can take the PCB board from the PCB board carrier; a film separation device, which is arranged above the PCB board carrier and is used for separating the protective film from the PCB board; and a film storage mechanism, which is installed below the workbench and is located beside the PCB board carrier and is used for storing the protective film taken by the film separation device.

[0008] In a further technical solution, the adsorption device includes a suction box bottom plate and a suction box panel. The suction box bottom plate and the suction box panel form a cavity. A number of adsorption holes are evenly distributed on the suction box panel. A negative pressure air duct interface is provided on the back of the suction box bottom plate, and is connected to a vacuum generator arranged under the workbench through a pipeline to evacuate the air in the cavity so that the suction box panel can adsorb the PCB board.

[0009] In a further technical solution, the suction box panel is provided with an upper area, a middle area and a lower area from top to bottom, the adsorption holes are evenly distributed on the surfaces of the three areas, a partition pressure relief valve A is provided between the upper area and the middle area, and a partition pressure relief valve B is provided between the middle area and the lower area, so as to achieve the adsorption of PCB boards of various specifications and sizes.

[0010] In a further technical solution, the six-axis manipulator is a six-axis manipulator, a flange is provided at the end of the six-axis manipulator, and a manipulator connector is provided on the back side of the suction box bottom plate to connect with the flange.

[0011] In a further technical solution, a board thickness detection mechanism is provided below the adsorption device to ensure that the adsorption device can only absorb one PCB board at a time.

[0012] In a further technical solution, a frame is provided on the periphery of the workbench, and the film separation device includes a horizontal pushing cylinder and a film clamp. The horizontal pushing cylinder is located above the PCB board carrier and is fixedly connected to the top of the frame. The film clamp is driven and connected to the power output end of the horizontal pushing cylinder to realize reciprocating motion between the PCB board carrier and the film storage mechanism.

[0013] In a further technical solution, the film storage mechanism includes a guide groove, a lifting groove and a lifting cylinder. The guide groove is arranged below the workbench and is connected to the storage space arranged below the work platform. The lifting groove is sleeved in the guide groove. Two lifting cylinders are provided, which are respectively fixed on the front and rear sides of the guide groove. The power output end of the lifting cylinder is fixedly connected to the lifting groove, and is used to drive the lifting groove to move in the vertical direction, so as to realize the guidance of protective films of various specifications and sizes.

[0014] In a further technical solution, a roller transport frame is provided under the PCB board carrier, one end of the roller transport frame is hinged to the workbench, and a supporting cylinder is provided under the roller transport frame. The output end of the supporting cylinder is connected to the other end of the roller transport frame through a connecting rod to adjust the inclination of the roller transport frame.

[0015] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a PCB board loading machine with a simple structure, high production capacity and the ability to meet the requirements of PCB boards of various specifications:

[0016] A PCB loading process of a PCB loading machine includes the following steps:

[0017] A. Stack the PCB boards with protective films on the PCB board carrier, and place the PCB board carrier with PCB boards on the workbench;

[0018] B. The six-axis manipulator drives the adsorption device to move to the PCB carrier. The adsorption device fits face to face with the PCB, adsorbs the PCB and the protective film at the same time, and transports them to the film separation device;

[0019] C. The film separation device takes the protective film out of the PCB board and transports the protective film to the film storage mechanism for storage and collection;

[0020] D. The six-axis manipulator drives the adsorption device to move and transport the PCB board after removing the protective film to the pre-soldering treatment line.

[0021] After adopting the above structure and method, the advantages of the present invention compared with the prior art are as follows: 1. The present invention abandons the traditional board taking method, and simultaneously adsorbs the PCB board and the protective film through the adsorption device. After tearing off the protective film, the PCB board can be immediately transported to the solder mask pre-treatment line, and the action is simpler and smoother, and the efficiency is significantly improved; 2. By adopting the whole-surface bonding method, the whole surface of the PCB board is adsorbed on the adsorption device, which can ensure the adsorption force, so that the PCB board will not fall off during transportation, reduce machine failures, and improve the product yield rate; 3. The present invention integrates all actuators on the workbench, which has a simple and compact structure, reduces the floor space of the machine, saves site costs, and can fully automatically separate the PCB board from the protective film, and can organize and store the separated film, and accurately transport the PCB to the next process, which can be well adapted to the needs of current PCB board manufacturers; 4. The process adds a board thickness detection mechanism. When each batch is carried out, a first piece confirmation is made first, and then the board can be automatically taken out. When the adsorption device adsorbs two boards at the same time, the board thickness detection mechanism will alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the adsorption device of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the film storage mechanism of the present invention. DETAILED DESCRIPTION

[0027] The following are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

[0028] like Figure 1 As shown, a PCB board loading machine includes a workbench 1, a PCB board carrier 2, an adsorption device 3, a six-axis manipulator 4, a film separation device 5 and a film storage mechanism 6. The PCB board carrier 2 is arranged above the workbench 1, and a roller transport frame 21 is provided below the PCB board carrier 2. One end of the roller transport frame 21 is hinged to the workbench 1, and a supporting cylinder 22 is provided below the roller transport frame 21. The output end of the supporting cylinder 22 is connected to the other end of the roller transport frame 21 through a connecting rod to adjust the inclination of the roller transport frame 21.

[0029] like Figure 3As shown, the adsorption device 3 is arranged beside the PCB board carrier 2, and is used to fit the entire surface of the PCB board, and adsorb the PCB board and the protective film at the same time. A plate thickness detection mechanism 31 is arranged below the adsorption device 3 to ensure that the adsorption device 3 can only absorb one PCB board 7 at a time. The adsorption device 3 includes a suction box bottom plate 32 and a suction box panel 33. The suction box bottom plate 32 and the suction box panel 33 form a cavity. The suction box panel 33 is evenly distributed with a number of adsorption holes. A negative pressure air duct interface is provided on the back of the suction box bottom plate 32, and is connected to a vacuum generator arranged below the workbench 1 through a pipeline to evacuate the air in the cavity so that the suction box panel 33 adsorbs the PCB board 7; the suction box panel 33 is provided with an upper area, a middle area and a lower area from top to bottom in sequence, and the adsorption holes are evenly distributed on the surfaces of the three areas, a partition pressure relief valve A34 is provided between the upper area and the middle area, and a partition pressure relief valve B35 is provided between the middle area and the lower area to achieve the adsorption of PCB boards 7 of various sizes.

[0030] In this embodiment, when the area of ​​the adsorbed PCB board can cover the three areas of the suction box panel 33, when the film separation device 5 tears off the protective film, the pressure relief valve A34 and the pressure relief valve B35 do not need to be closed, and the adsorption device 3 can ensure the stability of the adsorption force; when the area of ​​the adsorbed PCB board can only cover the middle area and the lower area, when the film separation device 5 tears off the protective film, since there is no adsorbent in the upper area, the adsorption device will directly inhale air, resulting in unstable adsorption force. At this time, the pressure relief valve A34 is closed to separate the upper area from the middle area and the lower area to ensure the stability of the adsorption force; similarly, when the area of ​​the adsorbed PCB board can only cover the lower area, the pressure relief valve A34 and the pressure relief valve B35 are closed.

[0031] like Figure 1 As shown, the six-axis manipulator 4 is installed on the workbench 1, and a flange is provided at the end of the six-axis manipulator 4. The back of the suction box bottom plate 32 is provided with a manipulator connector connected to the flange to drive the adsorption device 3 to remove the PCB board 7 from the PCB board carrier 2.

[0032] like Figure 2 As shown, the film separation device 5 is arranged above the PCB board carrier 2, and is used to separate the protective film from the PCB board 7; a frame 11 is provided on the periphery of the workbench 1, and the film separation device 5 includes a horizontal push cylinder 51 and a film clamp 52, the horizontal push cylinder 51 is located above the PCB board carrier 2, and is fixedly connected to the top of the frame 11, and the film clamp 52 is driven and connected to the power output end of the horizontal push cylinder 51 to realize reciprocating motion between the PCB board carrier 2 and the film storage mechanism 6.

[0033] like Figure 4As shown, the film storage mechanism 6 is installed below the workbench 1 and is located beside the PCB board carrier 2, and is used to store the protective film taken by the film separation device 5. The film storage mechanism 6 includes a guide groove 61, a lifting groove 62 and a lifting cylinder 63. The guide groove 61 is arranged below the workbench 1 and is connected to the storage space arranged below the work platform. The lifting groove 62 is sleeved in the guide groove 61. Two lifting cylinders 63 are provided, which are respectively fixed on the front and rear sides of the guide groove 61. The power output end of the lifting cylinder 63 is fixedly connected to the lifting groove 62, which is used to drive the lifting groove 62 to move in the vertical direction, so as to realize the guidance of protective films of various specifications and sizes.

[0034] Working principle: stack the PCB board with the protective film on the PCB board carrier 2, then place the PCB board carrier 2 on the roller transport frame 21, and adjust the inclination of the roller transport frame 21 by the supporting cylinder 22, fix the loading frame, and then start the machine. The six-axis manipulator 4 drives the adsorption device 3 to move to the loading frame according to the preset program. The adsorption device 3 is provided with a detection device for detecting whether there is a PCB board 7 on the PCB board carrier 2. If there is no PCB board, the machine alarms. If there is a PCB board 7, the six-axis manipulator 4 drives the adsorption device 3 to slowly approach the PCB board 7, and ensures that the adsorption device 3 and the PCB board 7 are level with each other to avoid crushing the PCB board 7. After the adsorption device 3 is completely attached to the PCB board 7, the six-axis manipulator 4 stops moving, and the vacuum generator generates negative pressure inside the adsorption device 3 to adsorb the PCB board 7 and the protective film together.

[0035] Then the six-axis robot 4 transports the adsorption device 3 to the film separation device 5, the film separation device 5 clamps the protective film, takes the protective film out from the PCB board 7, and transports the taken-out protective film to the film storage mechanism 6, and then releases the protective film, and the protective film falls directly into the storage space under the workbench 1 along the guide groove 61.

[0036] After the removal is completed, the six-axis manipulator 4 drives the adsorption device 3 to transport the PCB board 7 to the solder mask pre-treatment production line.

[0037] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A PCB board loading machine, comprising a workbench, characterized in that: include A PCB board carrier is arranged above the workbench and is used to load and fix the PCB board; The adsorption device is arranged beside the PCB board carrier, and is used to fit the entire surface of the PCB board, and adsorb the PCB board and the protective film at the same time. The adsorption device includes a suction box bottom plate and a suction box panel. The suction box bottom plate and the suction box panel form a cavity. The suction box panel is evenly distributed with a number of adsorption holes. The back of the suction box bottom plate is provided with a negative pressure air duct interface, and is connected to a vacuum generator arranged under the workbench through a pipeline to realize the air in the cavity is evacuated, so that the suction box panel adsorbs the PCB board. The suction box panel is provided with an upper area, a middle area and a lower area from top to bottom in sequence. The adsorption holes are evenly distributed on the surfaces of the three areas. A partition pressure relief valve A is provided between the upper area and the middle area, and a partition pressure relief valve B is provided between the middle area and the lower area, so as to realize the adsorption of PCB boards of various specifications and sizes; A six-axis manipulator is installed on the workbench and is connected to the adsorption device for driving the adsorption device to move so that the adsorption device can take the PCB board from the PCB board carrier; A film separation device is arranged above the PCB carrier and is used to separate the protective film from the PCB; The film storage mechanism is installed under the workbench and located beside the PCB carrier, and is used to store the protective film taken by the film separation device; A frame is provided on the periphery of the workbench, and the film separation device includes a horizontal push cylinder and a film clamp, wherein the horizontal push cylinder is located above the PCB board carrier and is fixedly connected to the top of the frame, and the film clamp is drivingly connected to the power output end of the horizontal push cylinder to realize reciprocating motion between the PCB board carrier and the film storage mechanism; The film storage mechanism includes a guide groove, a lifting groove and a lifting cylinder. The guide groove is arranged below the workbench and is connected to the storage space arranged below the work platform. The lifting groove is sleeved in the guide groove. Two lifting cylinders are provided, which are respectively fixed on the front and rear sides of the guide groove. The power output end of the lifting cylinder is fixedly connected to the lifting groove, and is used to drive the lifting groove to move in the vertical direction, so as to realize the guidance of protective films of various specifications and sizes.

2. A PCB board loading machine according to claim 1, characterized in that: A flange is provided at the end of the six-axis manipulator, and a manipulator connector is provided on the back of the suction box bottom plate to be connected with the flange.

3. A PCB board loading machine according to claim 1, characterized in that: A board thickness detection mechanism is provided below the adsorption device to ensure that the adsorption device can only absorb one PCB board at a time.

4. A PCB board loading machine according to claim 1, characterized in that: A roller transport frame is provided below the PCB board carrier, one end of the roller transport frame is hinged to the workbench, a supporting cylinder is provided below the roller transport frame, and the output end of the supporting cylinder is connected to the other end of the roller transport frame through a connecting rod to adjust the inclination of the roller transport frame.

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