Processing device for printed circuit board

Abstract

The invention discloses a processing device for a printed circuit board, which comprises a bottom table, a conveying line, a top hanging bracket and a cutting table, in the using process, a first linear guide rail is driven to drive a moving frame to move, and in the moving process of the moving frame, a second micro air cylinder can be driven to push the cutting depth of a tool frame to pressurize, so that the cutting depth of the tool frame is increased; the cutter at the bottom of the cutter frame can effectively cut off a rough edge area, the hard rubber plate can avoid rigid abrasion of the cutter, cyclic cutting use of the cutter is guaranteed, and edge notches of the circuit board are neat, and when a second micro air cylinder pushes the cutter frame to descend, pressing wheels located on the two sides of the cutter frame can be firstly attached to the material surface of the cutting area of the cutter, and therefore the cutting efficiency of the circuit board is improved. The pressing wheel moves along with the cutter through the rotating shaft, and the pressing wheel and the U-shaped frame keep pressing and tensioning the surface of a cut area material through the first supporting spring and the second supporting spring, so that the cutter can effectively cut and separate tensioned burrs and a circuit board part, and it is further guaranteed that notches in the edge of the circuit board are neat.

Description

Technical Field

[0001] The present invention relates to the technical field of trimming burrs after hot pressing of circuit boards, and specifically provides a processing device for printed circuit boards. Background Art

[0002] A printed circuit board (PCB) is a support for electronic components. Through printing technology, conductive paths are formed on an insulating substrate to achieve electrical interconnection of components. Before manufacturing a printed circuit board, it is necessary to separate and cut off the burrs of the hot-pressed board group to make the edges of the board group regular and aligned.

[0003] In the prior art, a processing device for printed circuit boards is disclosed in the publication number "CN119450936A", which includes a conveying mechanism, an adjusting mechanism, and a conveyor belt group. The adjusting mechanism is threadedly connected to the front side of the conveying mechanism, and the conveyor belt group is bolted to the top and bottom of the conveying component. The conveying mechanism includes a driving component, a positioning component, and an intercepting component. The positioning component rotates inside the driving component, and the intercepting component is arranged inside the positioning component. The present invention provides a processing device for printed circuit boards, which has an integrated structure for drilling and deburring printed circuit boards. Therefore, deburring can be carried out simultaneously after drilling, improving the stability during drilling of printed circuit boards. And when drilling printed circuit boards, there is a structure for real-time replacement of drill bits. Therefore, the drill bits can be replaced in real time, improving the flexibility during drilling of printed circuit boards.

[0004] However, there are still significant deficiencies in the prior art, such as: The above device and the prior art still have the following problems: After the board group is hot-pressed and formed, due to the extension of the copper foil layer and the PP layer after hot pressing, there are burrs. The burr part extends beyond the edge of the substrate. When cutting the burr copper foil layer, there is a lack of pressure separation for the burr layer, resulting in poor burr cutting effect, irregular cutting of the edge of the board, and a decrease in the actual usable area of the board. Summary of the Invention

[0005] The purpose of the present invention is to provide a processing device for printed circuit boards to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A processing device for printed circuit boards includes a bottom table, a conveyor line, a top hanger, and a cutting table. The conveyor line and the cutting table are arranged on the top of the bottom table, and the top hanger is installed on one side of the conveyor line; Circuit board printing and lamination edge burr layer cutting unit, which is arranged in the top area of the cutting table and is used for cutting the burrs of the hot-pressed circuit board material conveyed to the top of the cutting table; Circuit board lamination edge burr layer pressing and positioning unit, which is also arranged in the top area of the cutting table and is used for pressing, tensioning and separating the burr part during the burr cutting process.

[0007] Preferably, the circuit board printing and lamination edge burr layer cutting unit includes a moving part. The moving part includes a pressing table. Diagonal frames are symmetrically installed on both sides of the cutting table. Diagonal guide rails are embedded on the surface of the diagonal frames. The pressing table is installed on the moving end of the diagonal guide rails. Through groove one and through groove two are opened on the surface of the pressing table. A linear guide rail one is installed in the area of the pressing table close to through groove two. A moving frame is arranged in through groove two. One side of the moving frame is fixed to the moving end of the linear guide rail one.

[0008] Preferably, the circuit board printing and lamination edge burr layer cutting unit further includes a cutting part. The cutting part includes a tool holder. A micro cylinder two is installed on the top of the moving frame. The moving end of the micro cylinder two is fixed to the top of the tool holder. A cutting knife is installed at the bottom of the tool holder.

[0009] Preferably, the circuit board printing and lamination edge burr layer cutting unit further includes a pressing part. The pressing part includes a vertical column. Two groups of installation grooves are arranged on the surface of the tool holder. The vertical column is installed in the inner cavity of each group of installation grooves. An L-shaped frame is movably sleeved on the surface of the vertical column. A support spring two is arranged in the area of one end of the vertical column close to the top of the L-shaped frame. A support spring one is arranged in the area of one end of the vertical column close to the bottom of the U-shaped frame. A rotating shaft is installed on the outside of the U-shaped frame. A pressing wheel is installed on the outside of the rotating shaft.

[0010] Preferably, the circuit board lamination edge burr layer pressing and positioning unit includes a micro cylinder one. The micro cylinder one is installed on one side of the moving frame close to through groove one. A moving plate is arranged in through groove one. The moving plate is fixed to the moving end of the micro cylinder one.

[0011] Preferably, an anti-slip pressing plate is arranged at the bottom of the moving plate, and anti-slip rubber protrusions are arranged at the bottom of the anti-slip pressing plate.

[0012] Preferably, a circuit board cutting and material changing unit is arranged in the top hanger area.

[0013] Preferably, the circuit board cutting and material changing unit includes a material changing part, and the material changing part includes two linear guide rails. The two linear guide rails are arranged in two groups, and the two groups of linear guide rails are embedded and installed on the top of the top hanger. A sliding table is movably sleeved on the top of the top hanger. A bracket is installed on the top of the sliding table, and a pneumatic telescopic rod is installed at the bottom of the bracket. The output end of the pneumatic telescopic rod passes through the sliding table.

[0014] Preferably, the circuit board cutting and material changing unit further includes a positioning part. The positioning part includes a descending table, the descending table is fixed to the output end of the pneumatic telescopic rod, an extension rod is installed at the bottom of the descending table, and an electric suction cup is installed at the bottom of the extension rod.

[0015] Preferably, a material placing plate is arranged on the surface of the cutting table, and hard rubber plates are embedded and installed in the cutting areas on both sides of the material placing plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When in use, by driving the pneumatic telescopic rod to push the descending table and the electric suction cup to move towards the surface of the plate, after moving in place, the four electric suction cups adsorb and fix the four corners of the plate. Then, the linear guide rails II and the pneumatic telescopic rod are driven again to realize the storage and reset of the descending table. Then, the plate is accurately and effectively laid flat on the central area of the top of the material placing plate. At this time, the rough edges of the plate are located above the hard rubber plates, which is convenient for circular cutting and processing of the rough edges of the hot-pressed circuit board; 2. When in use, by driving the linear guide rail I to drive the movement of the moving frame, during the movement of the moving frame, the cutting depth of the tool holder can be pressurized by driving the micro cylinder II, so that the cutting knife at the bottom of the tool holder can effectively cut off the rough edge area. The hard rubber plate can avoid the rigid wear of the cutting knife, ensure the circular cutting use of the cutting knife, and make the edge cut of the circuit board neat; 3. When in use, when the tool holder cuts and separates the rough edge and the circuit board through the cutting knife, in order to ensure the tension on both sides of the material in the cutting area of the cutting knife, when the micro cylinder II pushes the tool holder to descend, the pressure wheels on both sides of the tool holder will first fit onto the surface of the material in the cutting area of the cutting knife. The pressure wheels move along with the cutting knife through the rotating shafts. The pressure wheels and the U-shaped frame keep pressing and tensioning the surface of the material in the cutting area through the first support spring and the second support spring, so that the cutting knife can effectively cut and separate the tensioned rough edge and the circuit board part, further ensuring the neatness of the edge cut of the circuit board. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall device of the present invention; Figure 2 It is a schematic diagram of the sliding table and the bracket part of the present invention; Figure 3 It is a schematic diagram of the descending table, the extension rod and the electric suction cup part of the present invention; Figure 4 Schematic diagram of the top plate and the hard pad part in the present invention; Figure 5 Schematic diagram of the first through groove and the second through groove parts in the present invention; Figure 6 Schematic diagram of the moving frame, the second micro cylinder and the tool holder parts in the present invention; Figure 7 Schematic diagram of the first support spring, the second support spring and the L-shaped frame parts in the present invention; Figure 8 Schematic diagram of the moving plate and the anti-slip pressing plate parts in the present invention.

[0018] In the figure: 1. Bottom table; 2. Conveyor line; 3. Top hanging frame; 31. Second linear guide rail; 4. Cutting table; 41. Feeding plate; 42. Hard rubber plate; 5. Sliding table; 51. Bracket; 52. Pneumatic telescopic rod; 6. Lowering table; 61. Extension rod; 62. Electric suction cup; 7. Oblique frame; 71. Oblique guide rail; 8. Pressing table; 81. First through groove; 82. Second through groove; 83. First linear guide rail; 84. First micro cylinder; 85. Moving plate; 86. Anti-slip pressing plate; 9. Moving frame; 91. Second micro cylinder; 92. Tool holder; 94. Installation groove; 95. Vertical column; 96. First support spring; 97. Second support spring; 98. U-shaped frame; 981. Rotating shaft; 99. Pressing wheel. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-8 , the present invention provides a technical solution: Embodiment 1: A device for printed circuit board processing: A device for printed circuit board processing, including a bottom table 1, a conveyor line 2, a top hanging frame 3 and a cutting table 4. The conveyor line 2 and the cutting table 4 are arranged on the top of the bottom table 1, and the top hanging frame 3 is installed on one side of the conveyor line 2; A feeding plate 41 is arranged on the surface of the cutting table 4, and hard rubber plates 42 are embedded and installed on both sides of the cutting area of the feeding plate 41.

[0021] The trimming unit for the burr layer at the edge of the printed circuit board after pressing is arranged in the top area of the cutting table 4 and is used for trimming the burrs of the hot-pressed circuit board material conveyed to the top of the cutting table 4. The trimming unit for the burr layer at the edge of the printed circuit board after pressing includes a moving part. The moving part includes a pressing table 8. Diagonal frames 7 are symmetrically installed on both sides of the cutting table 4. A diagonal guide rail 71 is embedded on the surface of the diagonal frame 7. The pressing table 8 is installed on the moving end of the diagonal guide rail 71. A first through groove 81 and a second through groove 82 are formed on the surface of the pressing table 8. A first linear guide rail 83 is installed in the area of the pressing table 8 close to the second through groove 82. A moving frame 9 is arranged in the second through groove 82, and one side of the moving frame 9 is fixed to the moving end of the first linear guide rail 83.

[0022] The trimming unit for the burr layer at the edge of the printed circuit board after pressing further includes a cutting part. The cutting part includes a tool holder 92. A second micro cylinder 91 is installed on the top of the moving frame 9. The moving end of the second micro cylinder 91 is fixed to the top of the tool holder 92. A cutting tool is installed at the bottom of the tool holder 92.

[0023] In this embodiment, the stability of the cut part and the reserved part of the board group is ensured. Subsequently, by driving the first linear guide rail 83 to drive the movement of the moving frame 9, during the movement of the moving frame 9, the cutting depth of the tool holder 92 can be pressurized by driving the second micro cylinder 91, so that the cutting tool at the bottom of the tool holder 92 can effectively cut off the burr area. The hard rubber plate 42 can avoid the rigid wear of the cutting tool, ensure the cyclic cutting use of the cutting tool, make the edge cut of the circuit board neat. By driving the first linear guide rail 83 to drive the movement of the moving frame 9, during the movement of the moving frame 9, the cutting depth of the tool holder 92 can be pressurized by driving the second micro cylinder 91, so that the cutting tool at the bottom of the tool holder 92 can effectively cut off the burr area. The hard rubber plate 42 can avoid the rigid wear of the cutting tool, ensure the cyclic cutting use of the cutting tool, make the edge cut of the circuit board neat.

[0024] A circuit board cutting and material changing unit is arranged in the area of the top hanger 3.

[0025] The circuit board cutting and material changing unit includes a material changing part. The material changing part includes two second linear guide rails 31. The two second linear guide rails 31 are embedded and installed on the top of the top hanger 3. A sliding table 5 is movably sleeved on the top of the top hanger 3. A bracket 51 is installed on the top of the sliding table 5. A pneumatic telescopic rod 52 is installed at the bottom of the bracket 51, and the output end of the pneumatic telescopic rod 52 passes through the sliding table 5.

[0026] The circuit board cutting and material changing unit further includes a positioning part. The positioning part includes a descending table 6. The descending table 6 is fixed to the output end of the pneumatic telescopic rod 52. An extension rod 61 is installed at the bottom of the descending table 6. An electric suction cup 62 is installed at the bottom of the extension rod 61.

[0027] In this embodiment, the pneumatic telescopic rod 52 is driven to push the lowering table 6 and the electric suction cup 62 towards the surface of the plate. After moving in place, the four electric suction cups 62 adsorb and fix the four corners of the plate. Then, the linear guide rail two 31 and the pneumatic telescopic rod 52 are driven again to realize the storage and reset of the lowering table 6. Subsequently, the plate is accurately and effectively laid flat on the central area of the top of the feeding plate 41. At this time, the burr of the plate is above the hard rubber plate 42, which facilitates the cyclic cutting process of the burr on the edge of the hot-pressed circuit board.

[0028] Embodiment Two: Based on Embodiment One, in this embodiment, it is considered that as the cutting process progresses, the cut burrs will separate from one side of the pressure wheel 99 and lose the tension adjustment, resulting in different tension states of the burrs during the cutting process and incorrect incisions at the rear section of the edge of the circuit board. Therefore, in this embodiment, a pressure and positioning unit for the burr layer at the edge of the circuit board pressing is provided to avoid the above problems; The pressure and positioning unit for the burr layer at the edge of the circuit board pressing is also arranged in the top area of the cutting table 4 and is used to press, tension, and separate the burr part during the process of cutting the burr. The pressure and positioning unit for the burr layer at the edge of the circuit board pressing includes a micro cylinder one 84. The micro cylinder one 84 is installed on one side of the moving frame 9 close to the through slot one 81. A moving plate 85 is arranged in the through slot one 81, and the moving plate 85 is fixed to the moving end of the micro cylinder one 84.

[0029] A non-slip pressing plate 86 is provided at the bottom of the moving plate 85, and non-slip rubber protrusions are arranged at the bottom of the non-slip pressing plate 86.

[0030] In this embodiment, the micro cylinder one 84 is driven. The micro cylinder one 84 pushes the moving plate 85 to move the non-slip pressing plate 86 pressed on the top area of the burr. When the non-slip pressing plate 86 moves, the non-slip pressing plate 86 will push the burr part to move and tighten, ensuring the continuous tension of the burr part, thereby ensuring the tension state of the material during the cutting process and further ensuring the neatness of the incision at the edge of the circuit board.

[0031] Working principle: First, the operator uses an external robotic arm to cyclically place the hot-pressed plate group materials on the top of the conveyor line 2 through pneumatic suction cups. The built-in conveyor belt of the conveyor line 2 will cyclically transport the plate group materials to the bottom of the top hanger 3. When a group of plate group materials reaches directly below the top hanger 3, at this time, the step of trimming the burrs of this group of plates is required. At this time, the linear guide rail two 31 can be driven. After being driven, the linear guide rail two 31 will drive the slide table 5 to move towards the area of the plate until the slide table 5 reaches directly above the plate. After completing this command, the pneumatic telescopic rod 52 can be driven to push the lowering table 6 and the electric suction cup 62 to move towards the surface of the plate. After moving into place, the four electric suction cups 62 adsorb and fix the four corners of the plate. Subsequently, the linear guide rail two 31 and the pneumatic telescopic rod 52 are driven again to realize the storage and reset of the lowering table 6. Subsequently, the plate is accurately and effectively laid flat on the central area of the top of the feeding plate 41. At this time, the burrs of the plate are above the hard rubber plate 42, which is convenient for the cyclic cutting and processing of the burrs on the edge of the hot-pressed circuit board; When the circuit board is placed in place, the burr trimming step can be carried out. At this time, multiple diagonal guide rails 71 can be driven to act. The diagonal guide rails 71 drive the pressing table 8 to move obliquely. The pressing table 8 gradually presses on the burr area on the edge of the circuit board. At the same time, the electric suction cup 62 presses and fixes the area within the top cutting area of the plate, which can realize the stability of the cut part and the remaining part of the plate group during the cutting process. Subsequently, the linear guide rail one 83 can be driven to drive the movement of the moving frame 9. During the movement of the moving frame 9, the cutting depth of the tool holder 92 can be pressurized by driving the micro cylinder two 91, so that the cutter at the bottom of the tool holder 92 can effectively cut off the burr area. The hard rubber plate 42 can avoid the rigid wear of the cutter, ensure the cyclic cutting use of the cutter, and make the edge cut of the circuit board neat; When the tool holder 92 cuts and separates the burr and the circuit board with the cutter, to ensure the tension on both sides of the material in the cutting area of the cutter, when the micro cylinder two 91 pushes the tool holder 92 to descend, the pressure wheels 99 on both sides of the tool holder 92 will first fit onto the surface of the material in the cutting area of the cutter. The pressure wheels 99 move along with the cutter through the rotating shaft 981. The pressure wheels 99 and the U-shaped frame 98 keep pressing and tensioning the surface of the material in the cutting area through the support spring one 96 and the support spring two 97, so that the cutter can effectively cut and separate the tensioned burr and the circuit board part, further ensuring the neatness of the edge cut of the circuit board; As the cutting process progresses, the cut burrs will break away from the pressure wheel 99 on one side, thus losing the tension adjustment. To prevent the burr tension from loosening, the micro cylinder one 84 can be driven. The micro cylinder one 84 pushes the moving plate 85 to drive the anti-slip pressing plate 86 pressed on the top area of the burr to move. When the anti-slip pressing plate 86 moves, the anti-slip pressing plate 86 will push the burr part to move and tighten, ensuring the continuous tension of the burr part, thus ensuring the tension state of the material during the cutting process and further ensuring the neatness of the edge cut of the circuit board.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for printed circuit boards, characterized in that: It includes a base table (1), a conveyor line (2), a top hanger (3) and a cutting table (4). The conveyor line (2) and the cutting table (4) are arranged on the top of the base table (1), and the top hanger (3) is installed on one side of the conveyor line (2). A circuit board printed and laminated edge burr layer cutting unit is arranged in the top area of the cutting table (4) and is used for cutting the burrs of the hot-pressed circuit board material conveyed to the top of the cutting table (4). A circuit board laminated edge burr layer pressing and positioning unit is also arranged in the top area of the cutting table (4) and is used for pressing, tensioning and separating the burr part during the burr cutting process.

2. The processing device for printed circuit boards according to claim 1, characterized in that: The circuit board printed and laminated edge burr layer cutting unit includes a moving part. The moving part includes a pressing table (8). Diagonal frames (7) are symmetrically installed on both sides of the cutting table (4). A diagonal guide rail (71) is embedded on the surface of the diagonal frame (7). The pressing table (8) is installed on the moving end of the diagonal guide rail (71). A first through groove (81) and a second through groove (82) are formed on the surface of the pressing table (8). A first linear guide rail (83) is installed in the area of the pressing table (8) close to the second through groove (82). A moving frame (9) is arranged in the second through groove (82), and one side of the moving frame (9) is fixed to the moving end of the first linear guide rail (83).

3. The processing device for printed circuit boards according to claim 2, characterized in that: The circuit board printed and laminated edge burr layer cutting unit further includes a cutting part. The cutting part includes a tool holder (92). A second micro cylinder (91) is installed on the top of the moving frame (9). The moving end of the second micro cylinder (91) is fixed to the top of the tool holder (92). A cutting knife is installed at the bottom of the tool holder (92).

4. A processing device for printed circuit boards according to claim 3, characterized in that: The circuit board printed and laminated edge burr layer cutting unit further includes a pressing part. The pressing part includes a vertical column (95). Two groups of mounting grooves (94) are arranged on the surface of the tool holder (92). The vertical column (95) is installed in the inner cavity of each mounting groove (94). An L-shaped frame (98) is movably sleeved on the surface of the vertical column (95). A second support spring (97) is arranged in the area of one end of the vertical column (95) close to the top of the L-shaped frame (98). A first support spring (96) is arranged in the area of one end of the vertical column (95) close to the bottom of the U-shaped frame (98). A rotating shaft (981) is installed on the outer side of the U-shaped frame (98), and a pressing wheel (99) is installed on the outer side of the rotating shaft (981).

5. A processing device for printed circuit boards according to claim 4, characterized in that: The circuit board laminated edge burr layer pressing and positioning unit includes a first micro cylinder (84). The first micro cylinder (84) is installed on one side of the moving frame (9) close to the first through groove (81). A moving plate (85) is arranged in the first through groove (81), and the moving plate (85) is fixed to the moving end of the first micro cylinder (84).

6. The processing device for printed circuit boards according to claim 5, characterized in that: An anti-slip pressing plate (86) is arranged at the bottom of the moving plate (85), and anti-slip rubber protrusions are arranged at the bottom of the anti-slip pressing plate (86).

7. A processing device for printed circuit boards according to claim 1, characterized in that: A circuit board cutting and material changing unit is arranged in the area of the top hanger (3).

8. A processing device for printed circuit boards according to claim 7, wherein: The circuit board cutting and material changing unit includes a material changing part, and the material changing part includes two linear guide rails II (31). The two linear guide rails II (31) are embedded and installed on the top of the top hanger (3). A sliding table (5) is movably sleeved on the top of the top hanger (3). A bracket (51) is installed on the top of the sliding table (5). A pneumatic telescopic rod (52) is installed at the bottom of the bracket (51), and the output end of the pneumatic telescopic rod (52) passes through the sliding table (5).

9. The processing device for printed circuit boards according to claim 8, characterized in that: The circuit board cutting and material changing unit further includes a positioning part, and the positioning part includes a lowering table (6). The lowering table (6) is fixed to the output end of the pneumatic telescopic rod (52). An extension rod (61) is installed at the bottom of the lowering table (6), and an electric suction cup (62) is installed at the bottom of the extension rod (61).

10. A processing device for printed circuit boards according to claim 1, characterized in that: A material placing plate (41) is arranged on the surface of the cutting table (4), and hard rubber plates (42) are embedded and installed in the cutting areas on both sides of the material placing plate (41).

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