A circuit board edge grinding device

Abstract

The application relates to the field of circuit board production devices, in particular to a circuit board edge grinding device which comprises a table top, a sliding table arranged above the table top, a lead screw arranged on the table top, the lead screw being driven to rotate by a feeding motor, a threaded pipe fixed on the sliding table, the lead screw penetrating through the threaded pipe and being threadedly connected with the threaded pipe, a top plate fixed on the sliding table, a support disc rotatably connected with the sliding table, a rotary motor fixed on the top plate above the support disc, a square shaft fixed at the rotary motor output end, a fixed plate arranged above the support disc, a square tube rotatably connected with the fixed plate arranged on the fixed plate, the square shaft tail end being arranged in the square tube and being slidably connected with the square tube, a rotating disc fixed at the bottom of the square tube, a plurality of lifting cylinders fixed on the top plate, and the piston rods of the lifting cylinders being fixed with the fixed plate. The device can automatically grind the four edges of the circuit board.

Description

Technical Field

[0001] This invention relates to the field of circuit board production equipment, and more particularly to a circuit board edge grinding device. Background Technology

[0002] As one of the basic components of electronic devices, circuit boards are where most of the electronic components or other electronic devices that enable the functions of electronic devices are located and rely on circuit boards for power supply and signal transmission.

[0003] Existing circuit board manufacturing processes require grinding all four edges of the circuit board. Patent application CN202320301394.9 discloses a circuit board edge grinding device, including a support plate with multiple support rods fixedly connected to its bottom. A mounting frame is located on the top of the support plate, containing a fixing mechanism. A connecting mechanism connects the mounting frame to the support plate, and a grinding mechanism is located on one side of the mounting frame. Starting a drive motor rotates the grinding wheel. Moving the mounting frame allows a rotating block to slide into a positioning groove via the connecting rod until one side of the circuit board abuts against the grinding wheel, allowing grinding to be performed on that side. Afterward, the mounting frame is slid back to its original position, at which point the rotating block is in the rotating groove. The mounting frame and the fixed circuit board can then be rotated. Repeating these steps allows grinding of the other side of the circuit board. However, this device can only grind two sides of the circuit board. After grinding, the circuit board needs to be removed and repositioned before grinding the other two sides, significantly impacting grinding efficiency.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circuit board edge grinding device.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses a circuit board edge grinding device, comprising a table, a slide table above the table, a lead screw on the table driven by a feeding motor, a threaded tube fixed on the slide table, the lead screw passing through the threaded tube and threadedly connected to the threaded tube, a top plate fixed on the slide table, a support plate rotatably connected to the slide table, a rotary motor fixed on the top plate above the support plate, a square shaft fixed at the output end of the rotary motor, a fixing plate above the support plate, a square tube rotatably connected to the fixing plate, the end of the square shaft being disposed inside the square tube and slidably connected to the square tube, a turntable fixed at the bottom of the square tube, multiple lifting cylinders fixed on the top plate, the piston rod ends of the lifting cylinders all fixed to the fixing plate, multiple positioning cylinders symmetrically fixed on both sides of the top plate, positioning plates symmetrically arranged on both sides of the turntable, the piston rod ends of the positioning cylinders being fixed to the corresponding positioning plates. The circuit board to be polished is placed on the support plate. The positioning cylinders on both sides of the circuit board are activated, and the piston rods on the positioning cylinders shorten. After both positioning plates contact the circuit board, the circuit board is fixed in place. After the circuit board is fixed by the positioning plates on both sides, the feeding motor drives the lead screw to rotate, and the circuit board moves towards the polishing disc. The polishing motor drives the polishing disc to rotate, and the circuit board is polished after contacting the polishing disc. After polishing for a certain period of time, when one side of the circuit board is polished, the feeding motor drives the lead screw to rotate in the opposite direction, and the slide moves away from the polishing disc. After the slide moves to the designated position, the feeding motor stops, the lifting cylinder is activated, and the piston rod on the lifting cylinder extends, the fixed plate descends, and the fixed plate drives the turntable to descend. After the turntable presses down on the circuit board, the positioning cylinder is activated, the piston rod on the positioning cylinder extends, and the positioning plate moves away from the circuit board. After the positioning plate separates from the circuit board, the rotary motor drives the square shaft to rotate, and the square shaft drives the turntable to rotate 90 degrees. After the circuit board rotates 90 degrees with the turntable, the positioning cylinder is activated again, the piston rod on the positioning cylinder shortens, and the two positioning plates press and fix the circuit board again. After the circuit board is fixed, it moves towards the grinding disc again, and the grinding disc grinds one side of the circuit board again. This cycle is repeated. This device can grind the side of the circuit board, and after grinding one side of the circuit board, it automatically rotates the circuit board 90 degrees and grinds the edge of the circuit board again. It can automatically grind all four edges of the circuit board.

[0008] Preferably, support tubes are fixed on both sides of the slide, and support rods are fixed on the slide at positions corresponding to the support tubes. The support rods pass through the support tubes and are slidably connected to the support tubes.

[0009] Compared with existing technologies, the present invention has the following advantages:

[0010] This device can grind the sides of a circuit board, and after grinding one side of the circuit board, it automatically rotates the circuit board 90 degrees and grinds the edges of the circuit board again. It can automatically grind all four edges of the circuit board. Attached Figure Description

[0011] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0012] Figure 1 This is a schematic diagram of the structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;

[0014] Figure 3 This is a schematic diagram of the third angle structure of the present invention;

[0015] In the diagram: 1. Tabletop; 2. Slide table; 3. Support tube; 4. Support rod; 5. Feeding motor; 6. Lead screw; 7. Threaded tube; 8. Support plate; 9. Top plate; 10. Rotary motor; 11. Square shaft; 12. Turntable; 13. Square tube; 14. Fixing plate; 15. Lifting cylinder; 16. Positioning cylinder; 17. Positioning plate; 18. Grinding disc; 19. Grinding motor; Detailed Implementation

[0016] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0017] Example 1:

[0018] like Figures 1 to 3As shown, this embodiment discloses a circuit board edge grinding device, including a table 1, a slide table 2 above the table 1, a lead screw 6 on the table 1, the lead screw 6 being driven to rotate by a feeding motor 5, a threaded tube 7 fixed on the slide table 2, the lead screw 6 passing through the threaded tube 7 and threadedly connected to the threaded tube 7, a top plate 9 fixed on the slide table 2, a support plate 8 rotatably connected to the slide table 2, a rotary motor 10 fixed on the top plate 9 above the support plate 8, a square shaft 11 fixed at the output end of the rotary motor 10, and a support plate 8 rotatably connected to the support plate 8. A fixed plate 14 is provided, on which a square tube 13 is rotatably connected. The end of a square shaft 11 is located inside the square tube 13 and is slidably connected to the square tube 13. A turntable 12 is also fixed at the bottom of the square tube 13. Multiple lifting cylinders 15 are also fixed on the top plate 9. The piston rod ends of the lifting cylinders 15 are all fixed to the fixed plate 14. Multiple positioning cylinders 16 are also symmetrically fixed on both sides of the top plate 9. Positioning plates 17 are also symmetrically provided on both sides of the turntable 12. The piston rod ends of the positioning cylinders 16 are fixed to the corresponding positioning plates 17. The circuit board to be polished is placed on the support plate 8. The positioning cylinders 16 on both sides of the circuit board are activated, and the piston rods on the positioning cylinders 16 shorten. After both positioning plates 17 come into contact with the circuit board, the circuit board is fixed. After the circuit board is fixed by the positioning plates 17 on both sides, the circuit board is fixed. After the circuit board is fixed, the feeding motor 5 drives the lead screw 6 to rotate, and the circuit board moves towards the polishing disc 18. The polishing motor 19 drives the polishing disc 18 to rotate. After the circuit board comes into contact with the polishing disc 18, the circuit board is polished. After the circuit board is polished for a certain period of time, after one side of the circuit board is polished, the feeding motor 5 drives the lead screw 6 to rotate in the opposite direction, and the slide table 2 moves away from the polishing disc 18. After the slide table 2 moves to the designated position, the feeding motor 5 stops, the lifting cylinder 15 is activated, the piston rod on the lifting cylinder 15 extends, the fixing plate 14 descends, and the fixing plate 14 drives the turntable 12. As the circuit board descends, the turntable 12 presses it down, and the positioning cylinder 16 is activated. The piston rod on the positioning cylinder 16 extends, and the positioning plate 17 moves away from the circuit board. After the positioning plate 17 separates from the circuit board, the rotary motor 10 drives the square shaft 11 to rotate. The square shaft 11 drives the turntable 12 to rotate 90 degrees. After the circuit board rotates 90 degrees with the turntable 12, the positioning cylinder 16 is activated, and the piston rod on the positioning cylinder 16 shortens. The two positioning plates 17 then hold the circuit board in place again. After the circuit board is fixed, it moves towards the grinding disc 18 again, and the grinding disc 18 grinds one side of the circuit board again. This process is repeated. This device can grind the side of the circuit board, and after grinding one side of the circuit board, it automatically rotates the circuit board 90 degrees and grinds the edge of the circuit board again. It can automatically grind all four edges of the circuit board.

[0019] Example 2:

[0020] This embodiment discloses a circuit board edge grinding device. Based on the structure and principle of Embodiment 1, this embodiment further includes support tubes 3 fixed on both sides of the slide table 2, and support rods 4 fixed on the table surface 1 at positions corresponding to the support tubes 3. The support rods 4 pass through the support tubes 3 and are slidably connected to them. The smooth movement of the slide table 2 is achieved by supporting the slide table 2 with the support rods 4.

[0021] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A circuit board edge grinding device, characterized in that, The device includes a tabletop, a slide table on top of the tabletop, a lead screw on the tabletop driven by a feeding motor, a threaded tube fixed on the slide table, the lead screw passing through the threaded tube and threadedly connected to it, a top plate fixed on the slide table, a support plate rotatably connected to the slide table, a rotary motor fixed on the top plate above the support plate, a square shaft fixed at the output end of the rotary motor, a fixing plate above the support plate, a square tube rotatably connected to the fixing plate, the end of the square shaft being disposed inside the square tube and slidably connected to the square tube, a turntable fixed at the bottom of the square tube, multiple lifting cylinders fixed on the top plate, the piston rod ends of the lifting cylinders all fixed to the fixing plate, multiple positioning cylinders symmetrically fixed on both sides of the top plate, positioning plates symmetrically arranged on both sides of the turntable, the piston rod ends of the positioning cylinders fixed to the corresponding positioning plates.

2. The circuit board edge grinding device according to claim 1, characterized in that, Support tubes are fixed on both sides of the slide, and support rods are fixed on the platform at positions corresponding to the support tubes. The support rods pass through the support tubes and are slidably connected to the support tubes.

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