Polishing device for removing burrs of circuit board

Abstract

The utility model relates to the technical field of circuit board polishing, and discloses a polishing device for removing circuit board burrs, which comprises an operating platform, a support is fixedly connected to the middle of the upper surface of the operating platform, two moving ports are formed in the upper surface of the operating platform in a penetrating manner, and the two moving ports are symmetrically arranged relative to the support. Four supporting blocks are fixedly connected to the bottom face of the operation platform. According to the grinding device for removing the burrs of the circuit board, when a user grinds the burrs on the side wall of the circuit board, the circuit board can be clamped on a rotating mechanism through a lifting mechanism, and then two grinding wheels are driven to move front, back, left and right in two moving openings through a bidirectional mechanism, a reciprocating mechanism and a grinding mechanism correspondingly; and after the two side walls are polished, the rotating mechanism drives the circuit board to rotate by 90 degrees, then the other two circuit boards of the circuit board can be polished again, the overall operation is convenient, and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board polishing, in particular to a polishing device for removing burrs from circuit boards. Background Art

[0002] Circuit boards, formally known as printed circuit boards, are critical components in electronic engineering. During the production process, burrs may form on the edges of circuit boards due to cutting and stamping. To prevent these tiny burrs from interfering with signals, improve assembly quality, and enhance the overall aesthetics, these burrs are often polished during the production process.

[0003] Because circuit boards are mostly rectangular, the four sides need to be polished separately during polishing. However, the existing polishing method mostly involves polishing the four sides of the circuit board four times. The overall process is slow and not conducive to rapid production in the factory. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the utility model provides a grinding device for removing burrs from a circuit board, so as to solve the problem that when grinding the side wall of the circuit board, the grinding needs to be performed in four steps, resulting in low efficiency.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a grinding device for removing burrs from circuit boards, comprising an operating platform, a bracket fixedly connected to the middle part of the upper surface of the operating platform, the upper surface of the operating platform is penetrated by two movable openings, the two movable openings are symmetrically arranged with the bracket, the bottom surface of the operating platform is fixedly connected to four support blocks, the four support blocks are respectively located at two corners on the side away from each other of the two movable openings, and a two-way mechanism is connected between the four support blocks, the outer wall of the two-way mechanism is connected to two symmetrically arranged reciprocating mechanisms, the outer walls of the two reciprocating mechanisms are both connected to grinding mechanisms, the output ends of the two grinding mechanisms are both connected to grinding wheels, the two reciprocating mechanisms, the two grinding mechanisms and the two grinding wheels are respectively located in the two movable openings, the bottom surface of the operating platform is fixedly connected to a rotating mechanism, the output end of the rotating mechanism passes through the bottom surface of the operating platform, the upper surface of the bracket is connected to a lifting mechanism, the output end of the lifting mechanism passes through the bracket and matches with one end of the rotating mechanism passing through the operating platform.

[0006] Furthermore, the bidirectional mechanism includes a bidirectional motor, a bidirectional screw and a sliding rod. The outer wall of the bidirectional motor is fixedly connected to the outer wall of one of the support blocks, the output shaft of the bidirectional motor is fixedly connected to one end of the bidirectional screw, the other end of the bidirectional screw passes through the two support blocks on the same side of the operating platform, and is rotatably connected to the inner walls of the two support blocks. The two ends of the sliding rod are fixedly connected to the inner walls of the two support blocks on the other side of the operating platform, and the two ends of the two reciprocating mechanisms are respectively mounted on the bidirectional screw and the outer walls of the sliding rod.

[0007] Furthermore, the reciprocating mechanism includes a reciprocating motor, a reciprocating screw and two L-shaped blocks, one of the L-shaped blocks is sleeved and threadedly connected to the outer wall of the bidirectional screw, and is threadedly connected to the outer wall of the bidirectional screw, the other L-shaped block is sleeved and slidably connected to the outer wall of the slide rod, and is slidably connected to the outer wall of the slide rod, the outer wall of the reciprocating motor is fixedly connected to the outer wall of one of the L-shaped blocks, the output end of the reciprocating motor is fixedly connected to one end of the reciprocating screw, and the other end of the reciprocating screw passes through the two L-shaped blocks and the grinding mechanism, and is rotatably connected to the inner walls of the two L-shaped blocks.

[0008] Furthermore, the grinding mechanism includes a moving block and a grinding motor. The moving block is sleeved and threadedly connected to the outer wall of the reciprocating screw. The upper surface of the moving block is fixedly connected to the outer wall of the grinding motor. The output shaft of the grinding motor is fastened to one side of the grinding wheel by bolts.

[0009] Furthermore, an auxiliary rod arranged parallel to the reciprocating screw rod is fixedly connected between the two L-shaped blocks. The auxiliary rod passes through the moving block and is slidably connected to the inner wall of the moving block.

[0010] Furthermore, the upper surfaces of the four L-shaped blocks are fixedly connected with sliders, the bottom surface of the operating platform is provided with four sliding grooves, and the outer walls of the four sliders are slidably connected with the inner walls of the four sliding grooves respectively.

[0011] Furthermore, the lifting mechanism includes a hydraulic rod and a pressure plate, the outer wall of the hydraulic rod is fixedly connected to the upper surface of the bracket, and the output end of the hydraulic rod passes through the bracket and is rotatably connected to the pressure plate.

[0012] Furthermore, the rotating mechanism includes a rotating motor and a placement plate. The outer wall of the rotating motor is fixedly connected to the bottom surface of the operating platform. The output shaft of the rotating motor passes through the operating platform and is fixedly connected to the bottom surface of the placement plate. The pressure plate is matched and aligned with the placement plate.

[0013] Furthermore, a plurality of limiting holes are evenly formed on the upper surface of the placement plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This grinding device for removing burrs from circuit boards is provided with a lifting mechanism above an operating platform, and a rotating mechanism, a two-way mechanism, two reciprocating mechanisms, two grinding mechanisms, and two grinding wheels below the operating platform. When a user is grinding burrs on the side walls of a circuit board, the user only needs to clamp the circuit board on the rotating mechanism through the lifting mechanism, and then use the two-way mechanism, the reciprocating mechanism, and the grinding mechanism to respectively drive the two grinding wheels to move back and forth and left and right in two moving openings, thereby grinding the two side walls of the circuit board. After grinding the two side walls, the rotating mechanism drives the circuit board to rotate 90 degrees, and then the remaining two circuit boards can be polished again. The overall operation is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall appearance of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall appearance of the utility model from another perspective;

[0018] Figure 3 This is a detailed connection diagram of the operating platform, bracket and support block of the utility model;

[0019] Figure 4 This is a detailed connection diagram of the lifting mechanism, rotating mechanism, grinding wheel and other components of the utility model.

[0020] In the figure: 1. Operating platform; 2. Bracket; 3. Hydraulic rod; 4. Pressure plate; 5. Rotating motor; 6. Placement plate; 7. Support block; 8. Slide rod; 9. L-shaped block; 10. Grinding wheel; 11. Bidirectional motor; 12. Bidirectional screw rod; 13. Reciprocating motor; 14. Reciprocating screw rod; 15. Auxiliary rod; 16. Moving block; 17. Grinding motor; 18. Slider; 101. Moving port; 102. Slide groove; 601. Limit hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-Figure 4, a grinding device for removing burrs from circuit boards, comprising an operating platform 1, a bracket 2 is fixedly connected to the middle of the upper surface of the operating platform 1, and two movable openings 101 are formed on the upper surface of the operating platform 1, and the two movable openings 101 are symmetrically arranged with the bracket 2, and four support blocks 7 are fixedly connected to the bottom surface of the operating platform 1, and the four support blocks 7 are respectively located at two corners on the side away from each other of the two movable openings 101, and a two-way mechanism is connected between the four support blocks 7, and the outer wall of the two-way mechanism is connected to two symmetrically arranged reciprocating mechanisms, and the outer walls of the two reciprocating mechanisms are connected to the grinding mechanisms, and the output ends of the two grinding mechanisms are connected to grinding wheels 10, and the two reciprocating mechanisms, the two grinding mechanisms and the two grinding wheels 10 are respectively located in the two movable openings 101, and the bottom surface of the operating platform 1 is fixedly connected to a rotating mechanism, and the output end of the rotating mechanism passes through the bottom surface of the operating platform 1, and the upper surface of the bracket 2 is connected to a lifting mechanism, and the output end of the lifting mechanism passes through the bracket 2 and matches with one end of the rotating mechanism passing through the operating platform 1.

[0023] like Figures 1 to 4 As shown, when the grinding device for removing burrs from a circuit board in the present invention is used, the circuit board to be ground is first placed on the rotating mechanism, and then the lifting mechanism is opened through an external PLC controller (this is the prior art, so it will not be described in detail). After the lifting mechanism is started, the output end moves downward, and cooperates with the rotating mechanism above the circuit board to clamp the circuit board on the rotating mechanism, and then the two-way mechanism is turned on. After the two-way mechanism is started, the two reciprocating mechanisms are controlled to move in the two moving openings 101 respectively, and stop when they move to contact the side wall of the circuit board. After that, the controller starts the two reciprocating mechanisms and the two grinding mechanisms. After the two reciprocating mechanisms are started, they will drive the grinding mechanism and the grinding wheel 10 to move back and forth relative to the side wall of the circuit board. After the two grinding mechanisms are started, they will drive the two grinding wheels 10 to rotate, and then the burrs on both sides of the circuit board can be ground back and forth until they are polished smooth and stop.

[0024] At this time, the controller turns on the two-way mechanism again and moves the two reciprocating mechanisms to both sides. At this time, the rotating mechanism is started. After the rotating mechanism is started, it drives the circuit board to rotate 90 degrees, and rotates the two sides that have not been polished before to the two opposite moving ports 101. At this time, the two-way mechanism moves the reciprocating mechanism back to the two sides of the circuit board and polishes the surface of the circuit board according to the above steps. After this polishing is completed, the four sides of the entire circuit board can be polished. The overall operation is convenient and efficient.

[0025] Special mention should be made here:

[0026] The cross section of the grinding wheel 10 is I-shaped. The purpose of this arrangement is to grind the side surfaces of the circuit board sidewall and the upper and lower sides close to the sidewall, so as to achieve a better grinding effect.

[0027] Because the length and width of circuit boards are mostly different, the distance can be set in advance on the PLC controller according to the circuit boards that need to be polished, so that the movement of the bidirectional mechanism and reciprocating mechanism can just offset the side wall of the circuit board.

[0028] like Figure 1 、 Figure 2 and Figure 4 As shown, the bidirectional mechanism includes a bidirectional motor 11, a bidirectional screw rod 12 and a slide rod 8. The outer wall of the bidirectional motor 11 is fixedly connected to the outer wall of one of the support blocks 7, the output shaft of the bidirectional motor 11 is fixedly connected to one end of the bidirectional screw rod 12, the other end of the bidirectional screw rod 12 passes through the two support blocks 7 on the same side of the operating platform 1, and is rotatably connected to the inner walls of the two support blocks 7. The two ends of the slide rod 8 are fixedly connected to the inner walls of the two support blocks 7 on the other side of the operating platform 1, and the two ends of the two reciprocating mechanisms are respectively sleeved on the bidirectional screw rod 12 and the outer walls of the slide rod 8.

[0029] More specifically, when it is necessary to control the movement of the two reciprocating mechanisms, the bidirectional motor 11 is turned on through the controller. After the bidirectional motor 11 is started, the bidirectional screw rod 12 can be driven to rotate. After the bidirectional screw rod 12 rotates, it cooperates with the slide bar 8 on the other side of the operating platform 1 to move the two reciprocating mechanisms connected on the surface back and forth in the moving port 101, thereby completing the adjustment for different circuit board widths.

[0030] like Figure 2 and Figure 4 As shown, the reciprocating mechanism includes a reciprocating motor 13, a reciprocating screw 14 and two L-shaped blocks 9, one of the L-shaped blocks 9 is sleeved and threadedly connected to the outer wall of the bidirectional screw 12, and is threadedly connected to the outer wall of the bidirectional screw 12, the other L-shaped block 9 is sleeved and slidably connected to the outer wall of the slide rod 8, and is slidably connected to the outer wall of the slide rod 8, the outer wall of the reciprocating motor 13 is fixedly connected to the outer wall of one of the L-shaped blocks 9, the output end of the reciprocating motor 13 is fixedly connected to one end of the reciprocating screw 14, the other end of the reciprocating screw 14 passes through the two L-shaped blocks 9 and the grinding mechanism, and is rotatably connected to the inner walls of the two L-shaped blocks 9.

[0031] More specifically, when it is necessary to control the grinding mechanism to grind the side wall of the circuit board, it is only necessary to turn on the reciprocating motor 13 through the controller. After the reciprocating motor 13 is started, the output shaft can drive the reciprocating screw 14 to rotate. After the reciprocating screw 14 rotates, it can drive the surface connected to the grinding mechanism to move back and forth along the direction of the reciprocating screw 14, thereby completing the purpose of grinding the side wall of the circuit board.

[0032] Because the two L-shaped blocks 9 are respectively sleeved on the surfaces of the slide rod 8 and the bidirectional screw rod 12, after the bidirectional screw rod 12 rotates, the two L-shaped blocks 9 can drive the reciprocating motor 13 and the reciprocating screw rod 14 to move along the direction of the slide rod 8 and the bidirectional screw rod 12.

[0033] like Figure 4 As shown, the grinding mechanism includes a moving block 16 and a grinding motor 17. The moving block 16 is sleeved and threadedly connected to the outer wall of the reciprocating screw 14. The upper surface of the moving block 16 is fixedly connected to the outer wall of the grinding motor 17. The output shaft of the grinding motor 17 is fastened to one side of the grinding wheel 10 by bolts.

[0034] More specifically, when the reciprocating screw 14 rotates, the moving block 16 with threads on its surface can move left and right along the direction of the reciprocating screw 14, thereby driving the grinding motor 17 and the grinding wheel 10 to move, and at this time the controller turns on the grinding motor 17, and the grinding motor 17 can drive the grinding wheel 10 to rotate.

[0035] It should be noted that the grinding wheel 10 is connected to the grinding motor 17 by bolts, so that when the grinding wheel 10 is worn or damaged, it can be disassembled and replaced more conveniently.

[0036] like Figure 4 As shown, an auxiliary rod 15 arranged parallel to the reciprocating screw rod 14 is fixedly connected between the two L-shaped blocks 9 . The auxiliary rod 15 passes through the moving block 16 and is slidably connected to the inner wall of the moving block 16 .

[0037] More specifically, by providing the auxiliary rod 15 , it is possible to prevent the moving block 16 from rotating when moving along the surface of the reciprocating screw 14 .

[0038] like Figure 2 and Figure 4 As shown, the upper surfaces of the four L-shaped blocks 9 are fixedly connected with sliders 18 , and the bottom surface of the operating platform 1 is provided with four slide grooves 102 , and the outer walls of the four sliders 18 are slidably connected with the inner walls of the four slide grooves 102 respectively.

[0039] More specifically, by setting the slider 18 and the slide groove 102, the movement trajectory of the four L-shaped blocks 9 can be limited; and the four L-shaped blocks 9 can also be supported to prevent the four L-shaped blocks 9 from tilting downward along with the reciprocating motor 13 and the reciprocating screw rod 14.

[0040] like Figure 1 and Figure 4 As shown, the lifting mechanism includes a hydraulic rod 3 and a pressure plate 4. The outer wall of the hydraulic rod 3 is fixedly connected to the upper surface of the bracket 2. The output end of the hydraulic rod 3 passes through the bracket 2 and is rotatably connected to the pressure plate 4.

[0041] More specifically, when it is necessary to limit the position of the circuit board, it is only necessary to turn on the switch of the hydraulic rod 3 through the controller. After the hydraulic rod 3 is started, the output end drops, and the circuit board below can be fixed on the rotating mechanism through the pressure plate 4, thereby avoiding the problem of unstable placement of the circuit board during grinding by the grinding wheel 10.

[0042] like Figure 1 and Figure 4 As shown, the rotating mechanism includes a rotating motor 5 and a placement tray 6. The outer wall of the rotating motor 5 is fixedly connected to the bottom surface of the operating platform 1. The output shaft of the rotating motor 5 passes through the operating platform 1 and is fixedly connected to the bottom surface of the placement tray 6. The pressure plate 4 is matched and aligned with the placement tray 6.

[0043] More specifically, after the polishing of both sides of the circuit board is completed, it is only necessary to turn on the rotating motor 5 through the controller. After the rotating motor 5 is started, the output shaft can drive the placement plate 6 to rotate. When the placement plate 6 rotates, due to the limit of the upper pressure plate 4, the circuit board located between the placement plate 6 and the pressure plate 4 can only passively follow and rotate together.

[0044] like Figure 1 and Figure 4 As shown, a plurality of limiting holes 601 are evenly formed on the upper surface of the placement plate 6 .

[0045] More specifically, because there are perforations on the circuit boards, in order to be able to more conveniently place the circuit boards in the center of the placement tray 6 and the pressure plate 4 when polishing the side walls of the circuit boards, by setting the limiting holes 601, each time you are ready to polish the same batch of circuit boards, you screw the positioning pins into at least three limiting holes 601 in advance, and these positioning pins can be aligned with three perforations of this batch of circuit boards. In this way, when polishing, you only need to clamp the three perforations of the circuit board in the three positioning pins, so that each circuit board can be located in the center of the placement tray 6 and the pressure plate 4 (or a specified position, not specifically limited).

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for removing burrs from a circuit board, comprising an operating platform (1), characterized in that: The middle of the upper surface of the operating platform (1) is fixedly connected to a bracket (2), and two moving openings (101) are opened through the upper surface of the operating platform (1), and the two moving openings (101) are symmetrically arranged with the bracket (2). The bottom surface of the operating platform (1) is fixedly connected to four support blocks (7), and the four support blocks (7) are respectively located at two corners on the side away from each other of the two moving openings (101), and a two-way mechanism is connected between the four support blocks (7). The outer wall of the two-way mechanism is connected to two symmetrically arranged reciprocating mechanisms, and the outer walls of the two reciprocating mechanisms are both connected to a grinding mechanism, and the output ends of the two grinding mechanisms are both connected to a grinding wheel (10), and the two reciprocating mechanisms, the two grinding mechanisms and the two grinding wheels (10) are respectively located in the two moving openings (101). The bottom surface of the operating platform (1) is fixedly connected to a rotating mechanism, and the output end of the rotating mechanism passes through the bottom surface of the operating platform (1). The upper surface of the bracket (2) is connected to a lifting mechanism, and the output end of the lifting mechanism passes through the bracket (2) and matches one end of the rotating mechanism passing through the operating platform (1).

2. A grinding device for removing burrs from a circuit board according to claim 1, characterized in that: The bidirectional mechanism comprises a bidirectional motor (11), a bidirectional screw rod (12) and a slide rod (8); the outer wall of the bidirectional motor (11) is fixedly connected to the outer wall of one of the support blocks (7); the output shaft of the bidirectional motor (11) is fixedly connected to one end of the bidirectional screw rod (12); the other end of the bidirectional screw rod (12) passes through the two support blocks (7) on the same side of the operating platform (1) and is rotatably connected to the inner walls of the two support blocks (7); the two ends of the slide rod (8) are fixedly connected to the inner walls of the two support blocks (7) on the other side of the operating platform (1); and the two ends of the two reciprocating mechanisms are respectively sleeved on the outer walls of the bidirectional screw rod (12) and the slide rod (8).

3. A grinding device for removing burrs from a circuit board according to claim 2, characterized in that: The reciprocating mechanism comprises a reciprocating motor (13), a reciprocating screw (14) and two L-shaped blocks (9), wherein one L-shaped block (9) is sleeved and threadedly connected to the outer wall of the bidirectional screw (12) and is threadedly connected to the outer wall of the bidirectional screw (12), the other L-shaped block (9) is sleeved and slidably connected to the outer wall of the slide rod (8) and is slidably connected to the outer wall of the slide rod (8), the outer wall of the reciprocating motor (13) is fixedly connected to the outer wall of one of the L-shaped blocks (9), the output end of the reciprocating motor (13) is fixedly connected to one end of the reciprocating screw (14), the other end of the reciprocating screw (14) passes through the two L-shaped blocks (9) and the grinding mechanism, and is rotatably connected to the inner walls of the two L-shaped blocks (9).

4. A grinding device for removing burrs from a circuit board according to claim 3, characterized in that: The grinding mechanism comprises a moving block (16) and a grinding motor (17), wherein the moving block (16) is sleeved and threadedly connected to the outer wall of the reciprocating screw (14), the upper surface of the moving block (16) is fixedly connected to the outer wall of the grinding motor (17), and the output shaft of the grinding motor (17) is fastened to one side of the grinding wheel (10) by a bolt.

5. The grinding device for removing burrs from a circuit board according to claim 4, characterized in that: An auxiliary rod (15) arranged parallel to the reciprocating screw rod (14) is fixedly connected between the two L-shaped blocks (9). The auxiliary rod (15) passes through the moving block (16) and is slidably connected to the inner wall of the moving block (16).

6. A grinding device for removing burrs from a circuit board according to claim 3, 4 or 5, characterized in that: The upper surfaces of the four L-shaped blocks (9) are fixedly connected with sliders (18), the bottom surface of the operating platform (1) is provided with four slide grooves (102), and the outer walls of the four sliders (18) are slidably connected to the inner walls of the four slide grooves (102).

7. A grinding device for removing burrs from a circuit board according to claim 1, 2, 3, 4 or 5, characterized in that: The lifting mechanism comprises a hydraulic rod (3) and a pressure plate (4); the outer wall of the hydraulic rod (3) is fixedly connected to the upper surface of the bracket (2); the output end of the hydraulic rod (3) passes through the bracket (2) and is rotatably connected to the pressure plate (4).

8. The grinding device for removing burrs from a circuit board according to claim 7, characterized in that: The rotating mechanism comprises a rotating motor (5) and a placement plate (6); the outer wall of the rotating motor (5) is fixedly connected to the bottom surface of the operating platform (1); the output shaft of the rotating motor (5) passes through the operating platform (1) and is fixedly connected to the bottom surface of the placement plate (6); the pressure plate (4) is matched and aligned with the placement plate (6).

9. The grinding device for removing burrs from a circuit board according to claim 8, characterized in that: A plurality of limiting holes (601) are evenly arranged on the upper surface of the placement plate (6).

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