PCB edge grinding machine

Abstract

The utility model relates to the technical field of PCB (printed circuit board) processing, and discloses a PCB edge grinding machine which comprises a roller conveyor, an edge grinding piece is arranged on the rear surface of the roller conveyor, a quantifying mechanism right opposite to the edge grinding piece is arranged on the front surface of the roller conveyor, and the quantifying mechanism comprises a supporting rod. A rack is slidably connected to the upper surface of the supporting rod in the front-back direction, a quantitative plate is fixedly connected to the rear end of the rack, a supporting block is fixedly connected to the portion, located on the right side of the rack, of the upper surface of the supporting rod, a rotating rod is rotationally connected to the interior of the supporting block in a penetrating mode, and a gear is fixedly connected to the left end of the rotating rod. The quantitative mechanism is arranged, the quantitative plate in the quantitative mechanism is attached to the other side of the PCB, the rack is moved back and forth to drive the quantitative plate to move back and forth so as to control the extrusion force between the PCB and the grinding plate, and therefore the edge grinding amount can be adjusted, the closer the quantitative plate is to the grinding plate, the larger the edge grinding amount of the PCB is, and on the contrary, the smaller the edge grinding amount of the PCB is. And accurate control over the edge grinding amount is achieved.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing technology, specifically a PCB board edge grinding machine. Background Technology

[0002] In PCB manufacturing, the substrate is first cut into specified dimensions using a cutting machine. Then, the edges are ground by an edge grinding machine to remove the burrs left from the cutting process. However, existing edge grinding machines typically transport the PCB directly through a conveyor system, simply attaching the edge of the PCB to the grinding mold. This can lead to slight rotation of the PCB during transport, causing the edge to detach from the mold. Consequently, the mold cannot effectively grind the PCB, resulting in a decrease in the edge grinding quality.

[0003] Chinese patent discloses a PCB board edge grinding machine (authorization announcement number CN220637254U). In this patent technology, the PCB board is pressed between the pressure roller and the roller under the action of the transmission mechanism. Then, under the action of the roller, it is transmitted to the position of the second grinding die. The PCB board then pushes the second grinding die, and the second grinding die is compressed towards the spring. Therefore, under the action of the spring, the grinding surface of the second grinding die will always be against the edge of the PCB board, thereby fully grinding the edge of the PCB board and improving the grinding quality of the PCB board.

[0004] However, it has certain drawbacks: it cannot control the squeezing force between the PCB board and the second mold, resulting in a fixed edge grinding amount. Therefore, it cannot meet different edge grinding requirements. When grinding PCBs of different specifications, excessive edge grinding can easily damage the structure or circuit of the PCB board, while insufficient edge grinding cannot meet production requirements or quality standards. Utility Model Content

[0005] The purpose of this invention is to provide a PCB board edge grinding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A PCB board edge grinding machine includes a roller conveyor. An edge grinding component is disposed on the rear surface of the roller conveyor, and a metering mechanism is disposed on the front surface of the roller conveyor, directly opposite the edge grinding component. The metering mechanism includes a support rod, a rack slidably connected to the upper surface of the support rod in a front-rear direction, a metering plate fixedly connected to the rear end of the rack, a support block fixedly connected to the upper surface of the support rod on the right side of the rack, a rotating rod rotatably connected through the interior of the support block, a gear fixedly connected to the left end of the rotating rod, and a ratchet fixedly connected to the exterior of the rotating rod on the right side of the support block. A positioning component is disposed on the right side surface of the support block in front of the rotating rod.

[0008] As a further embodiment of this utility model: the grinding part includes a support base, the front surface of the support base has a support groove, the inner rear surface of the support groove is fixedly connected to an elastic element, the front surface of the elastic element is fixedly connected to a grinding plate, the left and right ends of the grinding plate are both fixedly connected to arc-shaped blocks, and the front surface of the support base is uniformly rotatably connected to multiple pressure rollers above the support groove.

[0009] As a further embodiment of this utility model: the positioning component includes a spring, a positioning block is fixedly connected to the front end of the spring, and a pawl is fixedly connected to the rear end of the spring, with a positioning rod rotatably connected to the upper end of the pawl.

[0010] As a further embodiment of this utility model: the support rod is fixed to the front surface of the roller conveyor, and the gear is meshed with the rack.

[0011] As a further improvement of this utility model, the support base is fixedly connected to the rear surface of the roller conveyor.

[0012] As a further improvement of this utility model: the pawl is attached to the ratchet, and the left ends of the positioning block and the positioning rod are both fixed to the right side surface of the support block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model is equipped with an edge grinding component. The grinding plate in the edge grinding component grinds the PCB board, the arc block guides the PCB board to the grinding plate, and the pressure roller presses the PCB board, so that the PCB board always fits the grinding plate during the edge grinding process.

[0015] 2. This utility model has a quantitative mechanism in which a quantitative plate is attached to the other side of the PCB board. The pressure between the PCB board and the grinding plate is controlled by moving the quantitative plate back and forth by moving the rack back and forth, thereby adjusting the grinding amount. The closer the quantitative plate is to the grinding plate, the greater the grinding amount of the PCB board, and vice versa, thus achieving precise control of the grinding amount. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a PCB board edge grinding machine;

[0017] Figure 2 This is a schematic diagram of the edge grinding component in a PCB board edge grinding machine;

[0018] Figure 3 This is a schematic diagram of the quantitative mechanism in a PCB board edge grinding machine;

[0019] Figure 4 This is a schematic diagram of the positioning component in a PCB board edge grinding machine.

[0020] In the diagram: 1. Roller conveyor; 2. Edge grinding component; 3. Support base; 4. Support groove; 5. Elastic component; 6. Grinding plate; 7. Arc block; 8. Pressure roller; 9. Metering mechanism; 10. Support rod; 11. Rack; 12. Metering plate; 13. Support block; 14. Rotating rod; 15. Gear; 16. Ratchet; 17. Positioning component; 18. Spring; 19. Positioning block; 20. Pawl; 21. Positioning rod. Detailed Implementation

[0021] Please see Figure 1 and Figure 2 In this embodiment of the utility model, a PCB board edge grinding machine includes a roller conveyor 1. An edge grinding component 2 is provided on the rear surface of the roller conveyor 1. The edge grinding component 2 includes a support base 3. The support base 3 is fixedly connected to the rear surface of the roller conveyor 1. A support groove 4 is opened inside the front surface of the support base 3. An elastic component 5 is fixedly connected to the rear surface inside the support groove 4. A grinding plate 6 is fixedly connected to the front surface of the elastic component 5. Arc-shaped blocks 7 are fixedly connected to both the left and right ends of the grinding plate 6. Multiple pressure rollers 8 are evenly rotated and connected above the support groove 4 on the front surface of the support base 3.

[0022] Grinding plate 6 is used for grinding the edges of the PCB board;

[0023] The arc-shaped block 7 has a guiding function, which is the same as the rounded corner function on the second grinding tool in the Chinese patent for a PCB board edge grinding machine (authorization announcement number CN220637254U). Both are used to guide the PCB board into the support groove so that the PCB board fits the grinding plate 6.

[0024] The outer part of the pressure roller 8 is made of rubber and is used to press the PCB board so that the PCB board always fits the grinding plate 6 during the edge grinding process.

[0025] exist Figures 1-4In the middle section: A metering mechanism 9 is provided on the front surface of the roller conveyor 1, directly opposite the edge-grinding part 2. The metering mechanism 9 includes a support rod 10, which is fixedly connected to the front surface of the roller conveyor 1. A rack 11 is slidably connected to the upper surface of the support rod 10 in the front-rear direction. A metering plate 12 is fixedly connected to the rear end of the rack 11. A support block 13 is fixedly connected to the upper surface of the support rod 10 on the right side of the rack 11. A rotating rod 14 is rotatably connected through the inside of the support block 13. A gear 15 is fixedly connected to the left end of the rotating rod 14. The gear 15 meshes with... A ratchet 16 is fixedly connected to the outside of the rotating rod 14 on the right side of the support block 13. A positioning element 17 is provided on the right side surface of the support block 13 in front of the rotating rod 14. The positioning element 17 includes a spring 18. A positioning block 19 is fixedly connected to the front end of the spring 18, and a pawl 20 is fixedly connected to the rear end of the spring 18. The pawl 20 is attached to the ratchet 16. A positioning rod 21 is rotatably connected to the upper end of the pawl 20. The left ends of the positioning block 19 and the positioning rod 21 are both fixedly connected to the right side surface of the support block 13.

[0026] The quantitative plate 12 is attached to the other side of the PCB board to control the squeezing force between the PCB board and the grinding plate 6, thereby adjusting the edge grinding amount (degree). The closer the quantitative plate 12 is to the grinding plate 6, the greater the edge grinding amount of the PCB board, and vice versa.

[0027] The rear surface of the quantitative plate 12 has arc-shaped ends on both the left and right, which serve the same purpose as the arc-shaped block 7, namely, to guide.

[0028] When rack 11 is moved backward, gear 15 rotates clockwise, and ratchet 16 also rotates clockwise normally. When rack 11 is moved forward, gear 15 needs to rotate counterclockwise, and ratchet 16 also needs to rotate counterclockwise. Since pawl 20 is engaged with ratchet 16, ratchet 16 cannot rotate counterclockwise. Therefore, rack 11 will not drive metering plate 12 to move forward. As a result, the metering plate 12 will not loosen its pressure on the PCB board, and the edge grinding amount will not change.

[0029] The working principle of this utility model is as follows: When in use, first adjust the distance between the metering plate 12 and the grinding plate 6 according to the required grinding amount. If it needs to be increased, simply push the rack 11 backward. If it needs to be decreased, pull the pawl 20 away from the ratchet 16 and pull the rack 11 forward. After adjustment, the PCB board is conveyed by the roller conveyor 1. Under the action of the arc block 7, the PCB board enters the support groove 4 and is attached to the grinding plate 6 for grinding. The metering plate 12 is attached to the other side of the PCB board, so that the grinding amount of the PCB board does not change.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A PCB board edge grinding machine, comprising a roller conveyor (1), wherein an edge grinding component (2) is provided on the rear surface of the roller conveyor (1), characterized in that, The front surface of the roller conveyor (1) is provided with a metering mechanism (9) facing the edge grinding part (2). The metering mechanism (9) includes a support rod (10). A rack (11) is slidably connected to the upper surface of the support rod (10) in the front-back direction. A metering plate (12) is fixed to the rear end of the rack (11). A support block (13) is fixed to the upper surface of the support rod (10) on the right side of the rack (11). A rotating rod (14) is rotatably connected through the inside of the support block (13). A gear (15) is fixed to the left end of the rotating rod (14). A ratchet (16) is fixed to the outside of the rotating rod (14) on the right side of the support block (13). A positioning part (17) is provided on the right side surface of the support block (13) in front of the rotating rod (14).

2. The PCB board edge grinding machine according to claim 1, characterized in that, The grinding part (2) includes a support base (3), a support groove (4) is provided inside the front surface of the support base (3), an elastic element (5) is fixedly connected to the rear surface inside the support groove (4), a grinding plate (6) is fixedly connected to the front surface of the elastic element (5), and arc blocks (7) are fixedly connected to both the left and right ends of the grinding plate (6). Multiple pressure rollers (8) are uniformly rotated and connected above the support groove (4) on the front surface of the support base (3).

3. The PCB board edge grinding machine according to claim 1, characterized in that, The positioning component (17) includes a spring (18), with a positioning block (19) fixedly connected to the front end of the spring (18) and a pawl (20) fixedly connected to the rear end of the spring (18). A positioning rod (21) is rotatably connected to the upper end of the pawl (20).

4. A PCB board edge grinding machine according to claim 1, characterized in that, The support rod (10) is fixed to the front surface of the roller conveyor (1), and the gear (15) is meshed with the rack (11).

5. A PCB board edge grinding machine according to claim 2, characterized in that, The support base (3) is fixed to the rear surface of the roller conveyor (1).

6. A PCB board edge grinding machine according to claim 3, characterized in that, The pawl (20) is attached to the ratchet (16), and the left ends of the positioning block (19) and the positioning rod (21) are fixed to the right side surface of the support block (13).

Images