Edge grinding device for circuit board processing

Abstract

The utility model discloses an edge grinding device for circuit board processing, including frame, be equipped with rotating platform and first motor for driving rotating platform rotation respectively on the frame, be equipped with positioning mechanism on rotating platform, be equipped with edge grinding mechanism and moving mechanism for driving edge grinding mechanism displacement respectively on one side of rotating platform of frame top, wherein, positioning mechanism includes six positioning assembly, adjusting member and vacuum chuck, six positioning assembly is uniformly distributed on rotating platform along circumference, adjusting member sets up on rotating platform can drive six positioning assembly synchronous relative rotating platform center and make close or far displacement, vacuum chuck sets up on rotating platform, positioning assembly includes movable block and the positioning pin of elastic telescopic setting on movable block, and positioning pin lower extreme extends to rotating platform below and is equipped with fixed shaft, and positioning pin is elastically convex on movable block top initially, the arc top block of being equipped with correspondingly below edge grinding mechanism on the frame.

Description

Technical Field

[0001] This utility model specifically relates to a grinding device for circuit board processing. Background Technology

[0002] Edge grinding is an important process in the production of circuit boards. Edge grinding removes burrs and sharp corners from the edges of the circuit board, making them smoother and flatter. This not only improves the appearance quality of the circuit board but also prevents injury to operators from sharp edges during subsequent assembly and use. It also reduces the risk of electrical faults such as short circuits caused by irregular edges.

[0003] Currently, common circuit board edge grinding devices on the market generally have some problems when grinding circular circuit boards. On the one hand, existing positioning mechanisms are difficult to adapt to circular circuit boards of different diameters, and can usually only be fixed for circuit boards of specific sizes. When processing circuit boards of different specifications, it is necessary to frequently change the positioning fixture, which is cumbersome and reduces production efficiency. On the other hand, in the existing positioning method, during the edge grinding process, the positioning components will block some areas of the circuit board edge, preventing these areas from being effectively ground. This results in incomplete edge grinding, affecting the overall quality and performance of the circuit board, and making it difficult to meet the requirements of high-precision circuit board processing. Utility Model Content

[0004] In view of the defects of the existing technology, the technical problem to be solved by this utility model is to provide an edge grinding device for circuit board processing.

[0005] A circuit board edge grinding device includes a frame, on which a rotating platform and a first motor for driving the rotating platform to rotate are respectively provided. A positioning mechanism is provided on the rotating platform. An edge grinding mechanism and a moving mechanism for driving the edge grinding mechanism to move are respectively provided on one side of the rotating platform. The positioning mechanism includes six positioning components, an adjusting component, and a vacuum suction cup. The six positioning components are evenly distributed around the circumference of the rotating platform. The adjusting component, located on the rotating platform, can drive the six positioning components to move synchronously closer to or further away from the center of the rotating platform. The vacuum suction cup is located on the rotating platform. Each positioning component includes a movable block and a positioning pin elastically telescopically disposed on the movable block. The lower end of the positioning pin passes through the movable block and extends to a fixed shaft below the rotating platform. Initially, the positioning pin elastically protrudes above the movable block. An arc-shaped top block is provided on the frame corresponding to the edge grinding mechanism directly below. The fixed shaft can move and abut against the arc surface of the arc-shaped top block as the rotating platform rotates, causing the positioning pin of the corresponding positioning component to retract downwards into the movable block.

[0006] In one embodiment, the adjusting component includes a rotating plate. Several movable slots are radially arranged around the center of the rotating platform on its upper side. Movable blocks are movably disposed in the movable slots. The rotating plate is rotatably disposed on the lower side of the rotating platform. Several inclined slots are evenly distributed around the circumference of the rotating plate. The inclined slots and the movable slots are arranged in a one-to-one correspondence and their length directions are not parallel. Movable blocks are movably disposed in the inclined slots.

[0007] In one embodiment, the rotating platform is provided with a screw hole, and the rotating plate is provided with a plurality of pin holes spaced apart along the circumference. The screw hole is threaded with a connecting screw that can be inserted into the pin hole.

[0008] In one embodiment, a connecting shaft is provided at the center of the lower side of the rotating platform. The lower end of the connecting shaft is connected to the drive shaft of the first motor. The rotating plate is sleeved on the connecting shaft through a bearing. Limiting parts are provided on the upper and lower sides of the rotating plate on the connecting shaft. A plane bearing abuts between the limiting part and the rotating plate.

[0009] In one embodiment, a groove is recessed on one side of the connecting shaft below the rotating plate, the upper end of the groove extends through the upper side of the rotating platform, the vacuum suction cup is disposed at the center of the upper side of the rotating platform, a vacuum generator is provided on one side of the connecting shaft, and the vacuum suction cup and the vacuum generator are connected through the groove via a connecting pipe.

[0010] In one embodiment, the moving mechanism includes a moving base, a screw, a guide shaft, and a second motor. The screw and the guide shaft are respectively mounted on the frame, and the screw is rotatably connected to the frame via a bearing. The second motor is mounted on the frame, and the drive shaft of the second motor is connected to one end of the screw. The moving base is movably sleeved on the screw and the guide shaft, and the moving base and the screw are connected by a threaded connection.

[0011] In one embodiment, the edge grinding mechanism includes a lifting cylinder disposed on a movable seat, a connecting seat disposed on the drive shaft of the lifting cylinder, a third motor disposed on the connecting seat, and a grinding wheel disposed on the drive shaft of the third motor.

[0012] In summary, the advantages of this utility model over the prior art are:

[0013] This invention utilizes six positioning components evenly distributed along the circumference of a rotating platform, along with an adjusting component, to achieve flexible positioning of circular circuit boards of different diameters. The adjusting component drives the six positioning components to synchronously move closer to or further away from the center of the rotating platform, greatly improving the adaptability of the device to circular circuit boards of different specifications. It eliminates the need for frequent changes to positioning fixtures, effectively increasing production efficiency. Simultaneously, by cooperating with a vacuum chuck, the fixing effect on the circuit board is further enhanced, ensuring the circuit board remains stable during the edge grinding process and preventing displacement due to insecure fixing, which would affect the edge grinding accuracy.

[0014] Furthermore, as the positioning components rotate with the rotating platform and approach the edge grinding mechanism one by one, the fixed shaft on the positioning components can move and abut against the arc surface of the arc-shaped top block, causing the positioning pin to retract downward into the movable block. This eliminates the limiting contact on the corresponding position on the side of the circuit board. In this way, the edge grinding mechanism can perform comprehensive and complete edge grinding on every position of the circuit board edge, effectively avoiding the problem of incomplete edge grinding caused by the obstruction of the positioning components, significantly improving the edge grinding quality of the circuit board, and meeting the requirements of high-precision processing. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a circuit board processing edge grinding device according to one embodiment of the present invention;

[0016] Figure 2 This is one perspective view of a circuit board processing edge grinding device according to one embodiment of the present invention;

[0017] Figure 3 This is a second perspective view of a circuit board processing edge grinding device according to one embodiment of the present invention;

[0018] Figure 4 This is a side view of a circuit board processing edge grinding device according to one embodiment of the present invention. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1 to 4The present invention preferably provides a grinding device for circuit board processing, comprising a frame 1, on which a rotating platform 2 and a first motor 3 for driving the rotating platform 2 to rotate are respectively provided. A positioning mechanism is provided on the rotating platform 2. A grinding mechanism 4 and a moving mechanism 5 for driving the grinding mechanism 4 to move are respectively provided on one side of the rotating platform 2 on the frame 1. The positioning mechanism includes six positioning components, an adjusting member 6, and a vacuum suction cup 7. The six positioning components are evenly distributed along the circumference on the rotating platform 2. The adjusting member 6 is disposed on the rotating platform 2 and can drive the six positioning components. The vacuum suction cup 7 is disposed on the rotating platform 2 and moves closer to or further away from the center of the synchronous relative rotating platform 2. The positioning component includes a movable block 8 and a positioning pin 9 that is elastically and telescopically disposed on the movable block 8. The lower end of the positioning pin 9 passes through the movable block 8 and extends to a fixed shaft 10 below the rotating platform 2. Initially, the positioning pin 9 elastically protrudes above the movable block 8. An arc-shaped top block 11 is disposed on the frame 1 corresponding to the edge grinding mechanism 4 directly below it. The fixed shaft 10 can move and abut against the arc surface of the arc top block 11 as the rotating platform 2 rotates, so that the positioning pin 9 of the corresponding positioning component retracts downward into the movable block 8.

[0021] Specifically, six positioning components and adjusting mechanisms evenly distributed along the circumference of the rotating platform enable flexible positioning of circular circuit boards of different diameters. The adjusting mechanisms drive the six positioning components to move synchronously closer to or further away from the center of the rotating platform, greatly improving the adaptability of the device to circular circuit boards of different specifications. This eliminates the need for frequent changes to the positioning fixtures, effectively increasing production efficiency. Simultaneously, the combination with a vacuum chuck further enhances the fixation of the circuit boards, ensuring stability during the edge grinding process and preventing displacement due to insecure fixing, which could affect the edge grinding accuracy.

[0022] Furthermore, as the positioning components rotate with the rotating platform and approach the edge grinding mechanism one by one, the fixed shaft on the positioning components can move and abut against the arc surface of the arc-shaped top block, causing the positioning pin to retract downward into the movable block. This eliminates the limiting contact on the corresponding position on the side of the circuit board. In this way, the edge grinding mechanism can perform comprehensive and complete edge grinding on every position of the circuit board edge, effectively avoiding the problem of incomplete edge grinding caused by the obstruction of the positioning components, significantly improving the edge grinding quality of the circuit board, and meeting the requirements of high-precision processing.

[0023] Furthermore, the adjusting component 6 includes a rotating plate 61. Several movable slots 62 are radially arranged and penetrated along the circumference of the upper side of the rotating platform 2 with its center as the center. The movable blocks 8 are movably disposed in the movable slots 62 in a corresponding manner. The rotating plate 61 is rotatably disposed on the lower side of the rotating platform 2 with the same center. Several inclined slots 63 are evenly distributed and penetrated along the circumference of the rotating plate 61. The inclined slots 63 are correspondingly disposed with the movable slots 62 and their length directions are not parallel. The movable blocks 8 are movably disposed in the inclined slots 63 in a corresponding manner.

[0024] Specifically, the movable block includes a round shaft movably disposed within the movable groove and flanges protruding from the upper and lower ends of the round shaft. The upper flange of the round shaft abuts against the upper side of the rotating platform, and the lower flange of the round shaft abuts against the lower side of the rotating platform or the lower side of the rotating plate, thereby limiting the movement of the movable block. The upper end of the movable block has a recessed groove, and a positioning pin is movably disposed within the groove. A spring is provided within the groove to abut against the lower end of the positioning pin. The spring allows the positioning pin to move elastically up and down relative to the movable block. When the rotating plate rotates, the inclined groove abuts against and forces the movable block to move, thereby driving the movable block to move axially along the movable groove, so that the six positioning components move synchronously towards or away from the center of the rotating platform.

[0025] Furthermore, the rotating platform 2 is provided with screw holes 21, and the rotating plate 61 is provided with a plurality of pin holes 22 spaced along the circumference. The screw holes 21 are threaded with connecting screws (not shown in the figure) that can be inserted into the pin holes 22. Specifically, the user can adjust or fix the rotating plate relative to the rotating platform by turning the connecting screws to allow the connecting screws to be inserted into or disengaged relative to the pin holes along the screw hole displacement.

[0026] Furthermore, a connecting shaft 23 is provided at the center of the lower side of the rotating platform 2. The lower end of the connecting shaft 23 is connected to the drive shaft of the first motor 3. The rotating plate 61 is sleeved on the connecting shaft 23 through bearing engagement. Limiting parts 24 are respectively provided on the upper and lower sides of the rotating plate 61 on the connecting shaft 23. A plane bearing abuts between the limiting part 24 and the rotating plate 61. The combination of bearing engagement, plane bearing, and limiting parts between the rotating platform and the rotating plate ensures the stable rotation of the rotating plate under the rotating platform, reduces friction and shaking during rotation, and improves the stability and reliability of the device operation.

[0027] Furthermore, a recessed groove 25 is provided on one side of the connecting shaft 23 below the rotating plate 61. The upper end of the groove 25 extends through the upper side of the rotating platform 2. The vacuum suction cup 7 is located at the center of the upper side of the rotating platform 2. A vacuum generator 26 is provided on one side of the connecting shaft 23. The vacuum suction cup 7 and the vacuum generator 26 are connected via the groove 25 and a connecting pipe. Specifically, when positioning the circuit board, the vacuum generator operates, and the vacuum suction cup generates suction force through the connecting pipe to further fix the circuit board.

[0028] Furthermore, the moving mechanism 5 includes a moving base 51, a screw 52, ​​a guide shaft 53, and a second motor 54. The screw 52 and the guide shaft 53 are respectively mounted on the frame 1, and the screw 52 is rotatably connected to the frame 1 via bearings. The second motor 54 is mounted on the frame 1, and the drive shaft of the second motor 54 is connected to one end of the screw 52. The moving base 51 is movably sleeved on both the screw 52 and the guide shaft 53, and the moving base 51 and the screw 52 are connected by a threaded connection. Specifically, when the second motor is working, it drives the screw to rotate, thereby causing the moving base to move along the screw and the guide shaft, thus adjusting the position of the edge grinding mechanism.

[0029] Furthermore, the edge grinding mechanism 4 includes a lifting cylinder 41 disposed on the movable seat 51. A connecting seat 42 is mounted on the drive shaft of the lifting cylinder 41, and a third motor 43 is mounted on the connecting seat 42. A grinding wheel 44 is mounted on the drive shaft of the third motor 43. Specifically, when the movable seat moves to a suitable position, the lifting cylinder drives the connecting seat and the grinding wheel to rise and fall, bringing the grinding wheel closer to the edge of the circuit board. Then, the third motor drives the grinding wheel to rotate, thereby achieving edge grinding of the circuit board.

[0030] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An edge grinding device for processing a circuit board, comprising a frame (1), characterized in that: The frame (1) is provided with a rotating platform (2) and a first motor (3) for driving the rotating platform (2) to rotate. The rotating platform (2) is provided with a positioning mechanism. The frame (1) is provided with a grinding mechanism (4) and a moving mechanism (5) for driving the grinding mechanism (4) to move on one side of the rotating platform (2). The positioning mechanism includes six positioning components, an adjusting component (6) and a vacuum suction cup (7). The six positioning components are evenly distributed on the rotating platform (2) along the circumference. The adjusting component (6) is set on the rotating platform (2) and can drive the six positioning components to move synchronously closer to or further away from the center of the rotating platform (2). A vacuum suction cup (7) is set on a rotating platform (2). The positioning component includes a movable block (8) and a positioning pin (9) that is elastically telescopically set on the movable block (8). The lower end of the positioning pin (9) passes through the movable block (8) and extends to a fixed shaft (10) below the rotating platform (2). Initially, the positioning pin (9) elastically protrudes above the movable block (8). A curved top block (11) is provided on the frame (1) corresponding to the edge grinding mechanism (4) directly below. The fixed shaft (10) can move and abut against the arc surface of the curved top block (11) as the rotating platform (2) rotates, so that the positioning pin (9) of the corresponding positioning component retracts downward into the movable block (8).

2. The edge grinding apparatus for processing a circuit board according to claim 1, wherein: The adjusting component (6) includes a rotating plate (61). The upper side of the rotating platform (2) has a number of movable slots (62) arranged radially around its center. The movable blocks (8) are movably disposed in the movable slots (62) one by one. The rotating plate (61) is rotatably disposed on the lower side of the rotating platform (2) with the same center. The rotating plate (61) has a number of inclined slots (63) evenly distributed around its circumference. The inclined slots (63) are movably disposed in the movable slots (62) one by one, and their length directions are not parallel. The movable blocks (8) are movably disposed in the inclined slots (63) one by one.

3. The edge grinding apparatus for processing a circuit board according to claim 2, wherein: The rotating platform (2) is provided with screw holes (21), and the rotating plate (61) is provided with a number of pin holes (22) at intervals along the circumference. The screw holes (21) are threaded together with connecting screws that can be inserted into the pin holes (22).

4. The edge grinding apparatus for processing a circuit board according to claim 2, characterized by: The rotating platform (2) has a connecting shaft (23) at its lower center. The lower end of the connecting shaft (23) is connected to the drive shaft of the first motor (3). The rotating plate (61) is fitted onto the connecting shaft (23) through a bearing. Limiting parts (24) are provided on the upper and lower sides of the rotating plate (61) on the connecting shaft (23). A plane bearing abuts between the limiting part (24) and the rotating plate (61).

5. The edge grinding apparatus for processing a circuit board according to claim 4, wherein: The connecting shaft (23) has a recessed groove (25) on one side below the rotating plate (61). The upper end of the groove (25) passes through the upper side of the rotating platform (2). The vacuum suction cup (7) is located at the center of the upper side of the rotating platform (2). A vacuum generator (26) is provided on one side of the connecting shaft (23). The vacuum suction cup (7) and the vacuum generator (26) are connected by a connecting pipe through the groove (25).

6. The edge grinding apparatus for processing a circuit board according to claim 1, wherein: The moving mechanism (5) includes a moving seat (51), a screw (52), a guide shaft (53), and a second motor (54). The screw (52) and the guide shaft (53) are respectively mounted on the frame (1), and the screw (52) is rotatably connected to the frame (1) through a bearing. The second motor (54) is mounted on the frame (1), and the drive shaft of the second motor (54) is connected to one end of the screw (52). The moving seat (51) is movably mounted on the screw (52) and the guide shaft (53), and the moving seat (51) and the screw (52) are connected by a threaded connection.

7. The edge grinding apparatus for processing a circuit board according to claim 6, wherein: The edge grinding mechanism (4) includes a lifting cylinder (41) disposed on a movable seat (51), a connecting seat (42) is provided on the drive shaft of the lifting cylinder (41), a third motor (43) is provided on the connecting seat (42), and a grinding wheel (44) is provided on the drive shaft of the third motor (43).

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