Circular circuit board edge removing device

Abstract

The utility model discloses a circular circuit board edge removing device. The device comprises a bottom plate, a power supply box, a control box, a switch, a sliding structure, an L-shaped mounting plate, a motor, a milling head, a rotating disc and a supporting structure, the switch is connected with the power box; the motor is connected with the power box; the control box is respectively connected with the motor and the power supply box; the power supply box, the control box, the sliding structure and the supporting structure are all mounted on the bottom plate; the power supply box and the control box are arranged at intervals; the sliding structure and the supporting structure are both located between the power box and the control box. The supporting structure is located outside the sliding structure. The L-shaped mounting plate is mounted on the sliding structure; the motor is mounted on the L-shaped mounting plate; the milling cutter head is mounted on the motor; the rotating disc is installed on the supporting structure through a bearing and located above the milling cutter head. The plate edge removing device has the advantages of being good in plate edge removing effect, high in efficiency and high in applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circular circuit board edge removing device. BACKGROUND

[0002] Circuit board (PCB) is applied to various industries, and the main purpose of the edge design of the PCB is to assist PCBA production. The current SMT production line is very automated, and the transportation of the PCB board relies on the belt and chain. The edge of the PCB is used to assist the belt and chain to transport the PCB board. At the same time, the edge of the PCB is used for positioning the board during the ICT or FVT test after SMT, so as to prevent the needle bed and test point from running out of position. At the same time, the edge of the PCB can also be used as an inductor detector on the SMT production line to detect the position of the circuit board.

[0003] The traditional way to remove the edge is to manually break and remove the excess edge. Manual breaking will generate a large amount of residual burrs, affecting the appearance.

[0004] The existing edge removing machine is mainly for rectangular circuit boards and has high cost. It cannot remove the edges of different sizes and types of circular circuit boards, and cannot meet the production needs of circular circuit boards. Therefore, it is necessary to develop an edge removing device that can remove the edges of different sizes and types of circular circuit boards. SUMMARY

[0005] The utility model discloses a kind of circular circuit board edge removing devices, reduce the influence caused by the stress generated when folding edge to board and part;The utility model is exquisite in structure, and edge removing effect is good, high efficiency, does not hurt circuit board, and the edge of the circuit board after removal is smooth without burr, without polishing again;The utility model is strong in applicability, and is suitable for different sizes and types of circuit boards and circuit boards after soldering plug-in components.

[0006] To achieve the above object, the technical scheme of the utility model is as follows: a kind of circular circuit board edge removing device, including bottom plate, power box, control box, switch, sliding structure, L-shaped mounting plate, motor, rotary disc, milling cutter head and support structure;

[0007] The switch is connected with the power box. The motor is connected with the power box. The control box is connected with the motor and the power box respectively.

[0008] The power box, the control box, the sliding structure and the support structure are all installed on the bottom plate. The power box and the control box are arranged at intervals. The sliding structure and the support structure are located between the power box and the control box. The support structure is located outside the sliding structure.

[0009] The L-shaped mounting plate is installed on the sliding structure.

[0010] The motor is installed on the L-shaped mounting plate.

[0011] The milling cutter head is installed on the motor;

[0012] The rotating disc is installed on the support structure through bearings and is located aside the milling cutter head.

[0013] In the above technical solution, the support structure comprises a bearing mounting seat and a support plate;

[0014] The support plate is fixed on the bottom plate at intervals; and the bearing mounting seat is installed on the support plate;

[0015] The rotating disc is installed on the bearing mounting seat through a ball bearing.

[0016] In the above technical solution, the rotating disc is a pin rotating disc or a suction disc rotating disc.

[0017] In the above technical solution, the sliding structure comprises a guide rail, a sliding block and a sliding block baffle; the guide rail is installed on the bottom plate and is located between the support plates arranged at intervals;

[0018] The sliding block baffle is located at the end of the guide rail;

[0019] The sliding block is movably connected with the guide rail;

[0020] The horizontal end of the L-shaped mounting plate is installed on the sliding block.

[0021] In the above technical solution, the motor is installed on the longitudinal end of the L-shaped mounting plate through a motor mounting seat; and the milling cutter head is located aside the bearing mounting seat.

[0022] In the above technical solution, the motor is a 24-volt direct-current high-speed air-cooled motor.

[0023] In the above technical solution, the switch is a foot switch.

[0024] In the above technical solution, the control box is provided with a power switch and a motor speed adjusting knob.

[0025] In the above technical solution, the bottom plate is provided with a handle.

[0026] The utility model has the following advantages:

[0027] (1) The utility model mills off the plate edge by using a milling cutter, thereby ensuring the plate edge removal quality and good plate edge removal effect;

[0028] (2) The plate edge is removed quickly and simply; and the removed plate edge and circuit board can be directly and quickly taken out;

[0029] (3)The utility model is special for removing the board edge of the circular circuit board, fixes the processed circuit board through the positioning pin or the sucking disc on the rotating disc, fixes the micro milling cutter, rotates the rotating disc, drives the circuit board to rotate a circle and can finish removing the board edge, equipment cost is low, easy operation, removes the board edge conveniently, the practicality is strong, the utility model discloses that the board edge of the circular circuit board of different size, different thickness, different material, whether there is positioning hole can be processed and removed, and the board edge removal effect is good (the board edge after processing and removal is smooth), high efficiency, does not hurt the circuit board, and the circuit board board edge after removal is smooth without burr, and there is no need to polish again, solve the prior art need through the board separator to finish, can only process specific circuit board, mainly used for processing the board edge removal of rectangular circuit board, cannot realize the board edge removal of circular circuit board, need to make special board edge fixture, the circuit board that needs to be processed has positioning hole or via, the practicality is not strong, need to customize special carrier, the operation is complex, and the equipment cost is high.

[0030] (4)For the circuit board of different diameters, replace the rotating disc matched with the diameter of the circuit board, or adjust the position of the milling cutter head by moving the motor on the sliding block, so that it just inserts into the gap between the board edge and the circuit board, and the board edge of the circuit board can be accurately removed, which is simple and fast to adjust and has long service life. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the structure diagram of the printed board with the board edge.

[0032] Figure 2 It is the structure diagram of the milling cutter head in the utility model in the side of the printed board with the board edge.

[0033] Figure 3 It is the structure diagram of the printed board without the board edge. Figure 2

[0034] Figure 4 It is the structure diagram of the rotating disc in the utility model Figure 1 .

[0035] Figure 5 It is the structure diagram of the rotating disc in the utility model Figure 2 .

[0036] Figure 6 It is the structure diagram of the printed board with the board edge.

[0037] Figure 7 It is the front view of the printed board with the board edge on the rotating disc in the utility model.

[0038] Figure 8 It is the side view of the printed board with the board edge on the rotating disc in the utility model. ​

[0039] Figure 9 The top view of the printed board with a plate edge provided on the rotating disc in the utility model.

[0040] Figure 10 The utility model discloses a three-dimensional structure schematic diagram.

[0041] In the drawing, 1 is a bottom plate, 2 is a power supply box, 3 is a control box, 3.1 is a power switch, 3.2 is a motor speed regulating knob, 4 is a switch, 5 is a sliding structure, 5.1 is a guide rail, 5.2 is a sliding block, 5.3 is a sliding block baffle, 6 is an L-shaped mounting plate, 7 is a motor, 8 is a motor mounting seat, 9 is a rotating disc, 9.1 is a bearing, 10 is a bearing mounting seat, 11 is a support plate, 12 is a milling cutter head, 13 is a handle, and 14 is a printed board with a plate edge. DETAILED DESCRIPTION

[0042] The embodiments of the utility model will be described in detail below in combination with the drawings, but they do not constitute the limitation to the utility model, and are only for example. Meanwhile, through the description, the advantages of the utility model are made clearer and easier to understand.

[0043] As shown in the drawings, the circular circuit board edge removing device comprises a bottom plate 1, a power supply box 2, a control box 3, a switch 4, a sliding structure 5, an L-shaped mounting plate 6, a motor 7, a rotating disc 9, a milling cutter head 12 and a support structure.

[0044] The switch 4 is connected with the power supply box 2, the motor 7 is connected with the power supply box 2, and the control box 3 is connected with the motor 7 and the power supply box 2 respectively; the power supply box 2 and the control box 3 in the utility model are fixed on the bottom plate 1 through screws, the power supply box 2 is connected with a foot switch, the motor 7 starts when the switch 4 is stepped down, and the motor 7 stops when the switch 4 is released, so that the operation is simple and convenient; the power supply box 2 is used for converting AC 220V into DC 24V, so as to ensure the stable operation of the utility model.

[0045] The power supply box 2, the control box 3, the sliding structure 5 and the support structure are all installed on the bottom plate 1; the power supply box 2 and the control box 3 are arranged at intervals; the sliding structure 5 and the support structure are located between the power supply box 2 and the control box 3; and the support structure is located outside the sliding structure 5.

[0046] The L-shaped mounting plate 6 is installed on the sliding structure 5.

[0047] The motor 7 is installed on the L-shaped mounting plate 6.

[0048] The milling cutter head 12 is installed on the motor 7 (for example, Figure 2 、 Figure 3 、 Figure 10The utility model discloses one step to the place, directly with milling cutter milling the board edge of circuit board, the smooth circuit board edge after processing and handling, need not carry out again polishing processing, save time and labour, the problem of complex operation, time -consuming and labor -consuming of only being able to polish the residual burr on the circuit board after the board edge is broken in prior art is solved, and the board edge on the circuit board cannot be directly removed.

[0049] The rotating disc 9 is installed on the support structure through a bearing 9.1 and is located above the milling cutter head 12.

[0050] Further, the support structure comprises a bearing mounting seat 10 and a support plate 11.

[0051] The support plate 11 is fixed on the bottom plate 1 at intervals, the bearing mounting seat 10 is installed on the support plate 11, and the two support plates 11 are vertically fixed on the bottom plate to improve the structural stability.

[0052] The rotating disc 9 is installed on the bearing mounting seat 10 through a ball bearing, the bearing mounting seat 10 is fixed on the support plate 11, the ball bearing is fixed on the bearing mounting seat 10 through a screw, and the rotating disc 9 is fixed in the ball bearing through a circlip, so that the rotating disc 9 can rotate around the ball bearing to facilitate manual rotation of the circuit board. In the utility model, the rotating disc is manually rotated, the micro milling cutter (i.e., the milling cutter head 12) is directly inserted into the gap at the connection between the circular circuit board and the board edge, the micro milling cutter rotates at high speed, the start and stop of the motor 7 are controlled through a foot switch, the rotating disc 9 rotates one circle, the micro milling cutter only mills the place where the circular circuit board contacts the board edge, the processing surface is smooth, and the integrity of the board edge is not damaged. Since the milling cutter is fixed, the suction cup or the pin on the rotating disc 9 does not cause displacement of the circuit board when the rotating disc 9 is manually rotated, the accuracy and safety of the board edge removal operation are improved. The problems of the prior art, such as that the circuit board is fixed on the motor rotating disc, the operation is relatively complicated, the circuit board is thrown out due to the loose fixing of the motor rotating disc, or the circuit board is displaced, the circuit board is planed and scrapped, hidden dangers are caused to the operator, and the safety is low, are solved. Meanwhile, the problems of the prior art, such as that the board edge of the circuit board is basically rectangular, the board edge is large, the board edge is completely broken to cause dust, the board edge is directly thrown out, the circuit board is damaged, and the planed board edge has a poor effect, are solved.

[0053] The milling cutter with a size of 1.5 mm is installed on the motor and is used for milling the board edge, so that the quality of the PCB after the board edge is removed is ensured, the board edge removal effect is good, and the working efficiency is high. Other sizes of milling cutters can be selected according to the processing requirements, and the diameter of the milling cutter is smaller than the gap of the board edge.

[0054] Further, the rotating disc 9 is a pin rotating disc or a suction disc rotating disc; the utility model adopts the suction disc or the pin on the rotating disc to simply fix the circuit board, the circuit board is placed on the rotating disc, and the cost is low; the utility model adopts manual rotation rotating disc 9, and a micro milling cutter fixed on a high-speed motor is directly inserted into the gap of the connecting place of the circular circuit board and the board edge (as shown in Figure 1 、 Figure 7 、 Figure 8 The high-speed motor drives the micro milling cutter to rotate at high speed, the start and stop of the high-speed motor are controlled through the foot switch, so that the start and stop of the milling cutter are controlled, the device structure is exquisite, and the cost is low; the utility model is simple and accurate to operate, the rotating disc 9 rotates one circle, the milling cutter head 12 only mills the place where the circular circuit board and the board edge contact, and the processing surface is smooth, and the integrity of the board edge is not damaged, since the milling cutter head 12 is fixed, the suction disc or the pin on the rotating disc 9 makes the circuit board not displace, accurate removal of the board edge is completed, and the operation safety is improved; the problems that the existing board edge removal machine structure is complex, the equipment cost is high, the operation is complex, and the safety is low are solved.

[0055] Further, the sliding structure 5 includes guide rails 5.1, sliding blocks 5.2 and sliding block baffles 5.3; two guide rails 5.1 are installed on the bottom plate 1 and located between the support plates 11 arranged at intervals;

[0056] The sliding block baffles 5.3 are located at the end of the guide rails 5.1;

[0057] The sliding blocks 5.2 are movably connected with the guide rails 5.1;

[0058] The horizontal end of the L-shaped mounting plate 6 is installed on the sliding block 5.2.

[0059] Further, the motor 7 is installed on the longitudinal end of the L-shaped mounting plate 6 through a motor mounting seat 8; the milling cutter head 12 is located on the side of the bearing mounting seat 10; the motor mounting seat 8 is fixed on the L-shaped plate, the motor 7 is installed on the motor mounting seat 8, and the position of the motor fixed by the bolt can be adjusted up and down (i.e. the motor installation height can be adjusted up and down), so as to adjust the position of the milling cutter head 12, for removing the board edge of the circuit board with different thickness.

[0060] Further, the motor 7 is a 24v DC high-speed air-cooled motor.

[0061] Further, the switch 4 is a foot switch.

[0062] Further, the power switch 3.1 and the motor speed knob 3.2 are arranged on the control box 3; the motor speed controller (i.e. the motor speed knob 3.2) arranged on the control box 3 can adjust the rotating speed of the motor 7, and the power switch 3.1 arranged on the control box 3 can control the opening and closing of the power supply.

[0063] Further, the bottom plate 1 is provided with a handle 13, facilitating the movement of the utility model.

[0064] The working process of the circular circuit board edge removing device is as follows:

[0065] Firstly, the position of the adjusting slider 5.2 is adjusted so that the motor 7 is in a proper position, the installation height of the motor 7 is adjusted so that the milling cutter head 12 is in a proper height, and the rotating disc 9 is selected according to the need of the processed circuit board, which has two types of pin type rotating disc and suction cup type rotating disc (as shown in Figure 4 、 Figure 5 , Figure 4 A in the figure indicates a pin, Figure 5 B in the figure indicates a suction cup), the circular circuit board with edges 14 is fixed on the rotating disc 9 through the pin or the suction cup (the circular circuit board with edges is as shown in Figure 6 , Figure 6 C in the figure indicates the edges to be removed, D indicates the actually used circular circuit board, and E indicates the connection between the edges and the circular circuit board), and the center of the circuit board coincides with the center of the rotating disc 9, the foot switch 4 is pressed to start the motor 7, the rotating speed of the motor 7 is adjusted to a proper rotating speed through the motor speed adjusting knob 3.2, the circuit board is manually rotated for one circle, so that the edges of the circuit board are milled off by the milling cutter head 12, the foot switch 4 is released, the motor 7 is stopped, and the circuit board and the edges are taken out, that is, the circular circuit board edge removing work is completed.

[0066] The other parts not described belong to the prior art.

Claims

1. A round circuit board edge removal apparatus, characterized by: The utility model relates to a milling machine, which comprises a base plate (1), a power box (2), a control box (3), a switch (4), a sliding structure (5), an L-shaped mounting plate (6), a motor (7), a rotary disc (9), a milling cutter head (12) and a support structure. The switch (4) is connected with the power box (2), and the motor (7) is connected with the power box (2); the control box (3) is connected with the motor (7) and the power box (2) respectively. The power box (2), the control box (3), the sliding structure (5) and the support structure are all mounted on the base plate (1); the power box (2) and the control box (3) are arranged at intervals; the sliding structure (5) and the support structure are both located between the power box (2) and the control box (3); the support structure is located outside the sliding structure (5). The L-shaped mounting plate (6) is mounted on the sliding structure (5). The motor (7) is mounted on the L-shaped mounting plate (6). The milling cutter head (12) is mounted on the motor (7). The rotary disc (9) is mounted on the support structure through a bearing (9.1) and located at the side of the milling cutter head (12).

2. The circular circuit board edge removal device of claim 1, wherein: The support structure comprises a bearing mounting seat (10) and a support plate (11). The support plate (11) is fixed on the base plate (1) at intervals; the bearing mounting seat (10) is mounted on the support plate (11). The rotary disc (9) is mounted on the bearing mounting seat (10) through a ball bearing.

3. The circular circuit board edge removal apparatus according to claim 1 or 2, characterized by: The rotary disc (9) is a pin rotary disc or a suction disc rotary disc.

4. The circular circuit board edge removal device of claim 3, wherein: The sliding structure (5) comprises a guide rail (5.1), a sliding block (5.2) and a sliding block baffle (5.3); the guide rail (5.1) is mounted on the base plate (1) and located between the support plates (11) arranged at intervals. The sliding block baffle (5.3) is located at the end of the guide rail (5.1). The sliding block (5.2) is movably connected with the guide rail (5.1). The transverse end of the L-shaped mounting plate (6) is mounted on the sliding block (5.2).

5. The circular circuit board edge removal device of claim 4, wherein: The motor (7) is mounted on the longitudinal end of the L-shaped mounting plate (6) through a motor mounting seat (8); the milling cutter head (12) is located at the side of the bearing mounting seat (10).

6. The circular circuit board breader device of claim 5, wherein: The motor (7) is a 24-volt direct-current high-speed air-cooled motor.

7. The circular circuit board breader device of claim 6, wherein: The switch (4) is a foot switch.

8. The circular circuit board breader device of claim 7, wherein: The control box (3) is provided with a power switch (3.1) and a motor speed regulating knob (3.2).

9. The circular circuit board breader device of claim 8, wherein: The base plate (1) is provided with a handle (13).

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