Circuit board drilling device

Abstract

The circuit board drilling device comprises a base, a machine body, a first air cylinder and a second air cylinder, the top of the base is fixedly connected with the machine body, the first air cylinder is fixedly connected to the front face of the machine body, the second air cylinder is fixedly connected to the front face of the machine body, the second air cylinder is vertically installed, a rail is installed at the top of the base, and the rail is fixedly connected with the machine body. A movable seat is movably connected to the track and installed at the output end of the second air cylinder, and a drilling machine is installed at the front end of the movable seat. The utility model has the advantages that: the drilling stability is improved: the vibration amplitude of the circuit board is reduced by 70% by uniformly pressing the plurality of pressing rods, and the hole site roughness (Ra) is less than or equal to 6.3 microns; the adaptability is high, and the circuit board can be compatible with various circuit boards with the thickness of 0.4-3.0 mm and the size of 100 * 100 mm to 400 * 300 mm; the time consumed for remodeling the positioning frame and adjusting the pressing rod is less than or equal to 10 minutes, and the method is suitable for small-batch multi-variety production.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board processing, especially a circuit board drilling device. BACKGROUND

[0002] Circuit board (PCB) needs to be precisely drilled in multiple holes in electronic equipment manufacturing, and traditional drilling equipment mostly adopts fixed positioning clamps, which has the following defects:

[0003] Poor adaptability: the hole layout of different models of circuit boards differs greatly, and the fixed clamp needs to be frequently replaced, which is time-consuming and costly;

[0004] Insufficient compression: single-point compression easily leads to vibration and deviation of thin plates (thickness ≤1.6mm) under the impact of the drill bit, and the hole deviation is more than ±0.1mm;

[0005] Complicated adjustment: the position of the compression rod is fixed and cannot be flexibly adjusted according to the plate surface support point, which leads to uneven compression force distribution and affects the drilling quality.

[0006] Therefore, there is an urgent need for a drilling device that is flexible in positioning, stable in compression, and strong in adaptability. SUMMARY

[0007] The utility model aims to solve at least one of the technical defects.

[0008] Therefore, one purpose of the utility model is to provide a circuit board drilling device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0009] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a circuit board drilling device, which comprises a base, a machine body, a first air cylinder and a second air cylinder, the top of the base is fixedly connected with the machine body, the front of the machine body is fixedly connected with the first air cylinder, the front of the machine body is fixedly connected with the second air cylinder, and the second air cylinder is vertically installed;

[0010] The top of the base is provided with a track, and a movable seat is movably connected to the track, the movable seat is installed on the output end of the second air cylinder, and the front end of the movable seat is provided with a drilling machine;

[0011] The output end of the drilling machine is fixedly connected with a drill bit;

[0012] The output end of the first air cylinder is fixedly connected with a connector, the front of the connector is detachably connected with a connecting plate, both ends of the connecting plate are fixedly connected with a positioning frame, and the positioning frame is in a bent shape;

[0013] A lock hole is formed in the connector, a fastening head is inserted into the connecting plate, and the fastening head is threadedly connected with the lock hole in the connector;

[0014] The bottom of the movable seat is fixedly connected with a guide rod, the guide rod is transversely installed, a plurality of sliding sleeves are movably connected to the guide rod, the sliding sleeves can be fastened in position by screws, the bottom of the sliding sleeve is fixedly connected with an inclined pressing rod, and the bottom end of the pressing rod can be pressed on the transverse part of the positioning frame.

[0015] Preferably, according to any of the above solutions, the body is welded with the body, and the first cylinder and the second cylinder are both installed by screws.

[0016] By adopting the above technical solutions, the core innovation of the device is that:

[0017] The detachable positioning frame is designed to realize quick changeover through modularization;

[0018] The multidirectional adjustable pressing rod can be flexibly adjusted in horizontal position according to the size of the circuit board to realize uniform pressing;

[0019] The pressing-drilling linkage is realized by driving the pressing rod to be synchronously pressed down by the cylinder to improve the drilling stability.

[0020] Preferably, according to any of the above solutions, the first cylinder is horizontally installed, and the material of the track is stainless steel.

[0021] Preferably, according to any of the above solutions, the vertical position of the movable seat is adjustable, and the drilling machine is vertically installed.

[0022] Preferably, according to any of the above solutions, the web plate and the positioning frame are integrally welded, and the bending angle of the positioning frame is ninety degrees.

[0023] Base structure:

[0024] The body is welded on the top of the base, and the horizontal first cylinder and the vertical second cylinder are installed on the front face of the body;

[0025] The stainless steel track is arranged on the base, the movable seat is slidably connected with the track through the sliding block, and the movable seat is driven to ascend and descend by the second cylinder;

[0026] The drilling machine is fixed to the front end of the movable seat, and the drill bit is vertically installed.

[0027] Positioning and pressing assembly:

[0028] The detachable positioning frame is connected with the output end of the first cylinder through the connector, the connector is detachably connected with the web plate through the lock hole, the web plate is welded with the 90°-bent positioning frame at both ends, and the positioning frame is used for clamping the two sides of the circuit board;

[0029] The multidirectional pressing rod adjusting system is that the horizontal guide rod is fixedly arranged at the bottom of the movable seat, a plurality of sliding sleeves are slidably connected to the guide rod, the sliding sleeves are locked by screws, the bottom of the sliding sleeve is connected with the inclined pressing rod, and the end of the pressing rod can be pressed against the transverse part of the positioning frame.

[0030] Preferably, the lateral part of the positioning frame is movably connected to the top surface of the base, the fastening head is a hexagonal socket head cap screw, and the positioning frame and the connecting plate are replaceable as a whole.

[0031] Operation flow:

[0032] Circuit board positioning

[0033] According to the model of the circuit board, select the matching positioning frame and connecting plate assembly;

[0034] Insert the connecting plate into the joint of the first air cylinder and fix it by rotating the hexagonal socket head cap screw into the lock hole;

[0035] Place the circuit board on the top surface of the base, and clamp the edges into the positioning frame to complete the lateral limiting.

[0036] Step: pressure rod adjustment and compression

[0037] Loosen the sleeve screw on the guide rod, and according to the width of the circuit board and the support requirement, slide the sleeve to the target position such as the edge of the board, the reinforcing rib or the hole dense area;

[0038] Tighten the sleeve screw to fix the horizontal position of the pressure rod;

[0039] Start the second air cylinder to drive the movable seat to move down, and the pressure rod will follow it to move down, and its end will press the circuit board obliquely to eliminate the warping of the board.

[0040] Step: drilling operation

[0041] Start the drill, and the drill bit will be vertically fed under the drive of the movable seat to complete the drilling;

[0042] During the drilling process, the pressure rod continuously applies downward pressure to suppress the impact vibration of the drill bit and ensure the accuracy of the hole position (deviation ≤ ±0.05mm)

[0043] Preferably, the position of the sleeve on the guide rod is adjustable and lockable.

[0044] Modular positioning frame design:

[0045] The positioning frame and the connecting plate adopt a welded integrated structure, which can be quickly disassembled and assembled through the joint to adapt to different board types such as single-sided board, double-sided board and special-shaped board;

[0046] When replacing, only the fastening head needs to be disassembled, and the replacement can be completed within 5 minutes, with an efficiency improvement of 60%.

[0047] Multi-stage adjustment of the pressure rod:

[0048] Multiple sleeves are provided on the guide rod, and the horizontal position of the pressure rod can be distributed as needed to adapt to weak areas of the circuit board such as thin areas and unsupported hole positions;

[0049] Linkage compression mechanism:

[0050] The second cylinder drives the drill and the press rod to move synchronously, and the pressing and drilling are consistent in time sequence, so as to prevent manual operation error.

[0051] The pressing force is accurately controlled through the cylinder pressure valve (range 50-200N), and overpressure is avoided to cause the deformation of the circuit board.

[0052] The drilling stability is improved: the vibration amplitude of the circuit board is reduced by 70% due to the uniform pressing of the multiple press rods, and the roughness (Ra) of the hole position is less than or equal to 6.3 μm.

[0053] The adaptability is strong: various circuit boards with a thickness of 0.4-3.0 mm and a size of 100*100 mm to 400*300 mm can be compatible.

[0054] The efficiency is optimized: the positioning frame is replaced and the press rod is adjusted in less than or equal to 10 minutes, and the device is suitable for small-batch and multi-variety production.

[0055] Compared with the prior art, the device has the advantages and beneficial effects that:

[0056] The circuit board drilling device can realize modular positioning frame design: the positioning frame and the connecting plate adopt a welded integrated structure, the connecting plate is quickly disassembled and assembled through the joint, different board types such as single-sided board, double-sided board and special-shaped board are adapted, only the fastening head needs to be disassembled, the replacement is completed in 5 minutes, and the efficiency is improved by 60%.

[0057] The press rod is multi-stage adjusted: a plurality of sliding sleeves are arranged on the guide rod, the horizontal positions of the press rods can be distributed as required, and the weak areas of the circuit board such as thin areas and hole positions without support are adapted.

[0058] The linkage pressing mechanism is:

[0059] The second cylinder drives the drill and the press rod to move synchronously, and the pressing and drilling are consistent in time sequence, so as to prevent manual operation error.

[0060] The pressing force is accurately controlled through the cylinder pressure valve (range 50-200N), and overpressure is avoided to cause the deformation of the circuit board.

[0061] The device can realize:

[0062] The drilling stability is improved: the vibration amplitude of the circuit board is reduced by 70% due to the uniform pressing of the multiple press rods, and the roughness (Ra) of the hole position is less than or equal to 6.3 μm.

[0063] The adaptability is strong: various circuit boards with a thickness of 0.4-3.0 mm and a size of 100*100 mm to 400*300 mm can be compatible.

[0064] The efficiency is optimized: the positioning frame is replaced and the press rod is adjusted in less than or equal to 10 minutes, and the device is suitable for small-batch and multi-variety production.

[0065] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0066] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0067] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0068] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0069] Figure 3 This is a schematic diagram of the structure of this utility model without the connecting plate installed;

[0070] Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0071] In the diagram: 1-base, 2-body, 3-first cylinder, 4-second cylinder, 5-rail, 6-movable seat, 7-drilling machine, 8-drill bit, 9-connector, 10-connecting plate, 11-positioning frame, 12-fastening head, 13-guide rod, 14-sliding sleeve, 15-pressure rod. Detailed Implementation

[0072] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0073] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0074] like Figures 1-4 As shown, this circuit board drilling device includes a base 1, a body 2, a first cylinder 3, and a second cylinder 4. The body 2 is fixedly connected to the top of the base 1, the first cylinder 3 is fixedly connected to the front of the body 2, and the second cylinder 4 is fixedly connected to the front of the body 2. The second cylinder 4 is installed vertically.

[0075] A track 5 is installed on the top of the base 1, and a movable seat 6 is movably connected to the track 5. The movable seat 6 is installed on the output end of the second cylinder 4, and a drill rig 7 is installed at the front end of the movable seat 6.

[0076] The drill bit 8 is fixedly connected to the output end of the drilling rig 7;

[0077] The output end of the first cylinder 3 is fixedly connected to a connector 9. The front of the connector 9 is detachably connected to a receiving plate 10. The two ends of the receiving plate 10 are fixedly connected to positioning frames 11, which are bent.

[0078] A locking hole is provided on the connector 9, and a fastening head 12 is inserted into the connector plate 10. The fastening head 12 is threadedly connected to the locking hole on the connector 9.

[0079] The bottom of the movable seat 6 is fixedly connected to a guide rod 13, which is installed horizontally. Several sliding sleeves 14 are movably connected to the guide rod 13. The sliding sleeves 14 can be fastened to their positions with screws. The bottom of the sliding sleeves 14 is fixedly connected to an oblique pressure rod 15, and the bottom end of the pressure rod 15 can press against the horizontal part of the positioning frame 11.

[0080] Example 1: The body 1 and body 2 are welded together, and the first cylinder 3 and the second cylinder 4 are both installed with screws. The core innovation of this device lies in:

[0081] Detachable positioning frame 11: The modular positioning frame 11 design enables rapid model changeover;

[0082] Multi-directional adjustable pressure bar 15: The horizontal position of the pressure bar 15 can be flexibly adjusted according to the size of the circuit board to achieve uniform clamping;

[0083] Clamping-Drilling Linkage: The cylinder drives the pressure rod 15 to press down synchronously, improving drilling stability. The first cylinder 3 is horizontally installed, and the rail 5 is made of stainless steel. The vertical position of the movable seat 6 is adjustable, and the drill rig 7 is vertically installed. The connecting plate 10 and the positioning frame 11 are welded together, and the bending angle of the positioning frame 11 is ninety degrees.

[0084] Example 2: Matrix Structure:

[0085] The base 1 is welded to the top of the body 2, and the front of the body 2 is equipped with a horizontal first cylinder 3 and a vertical second cylinder 4.

[0086] The base 1 is equipped with a stainless steel rail 5, and the movable seat 6 is slidably connected to the rail 5 via a slider. The movable seat 6 is driven to lift and lower by the second cylinder 4.

[0087] The drilling rig 7 is fixed to the front end of the movable seat 6, and the drill bit 8 is installed vertically.

[0088] Positioning and clamping components:

[0089] Detachable positioning frame: the first cylinder 3 output end connects the joint 9, the joint 9 is detachably connected with the connecting plate 10 through the lock hole, the connecting plate 10 two ends are welded with the 90 ° bending positioning frame 11, for clamping the two sides of the circuit board;

[0090] Multi-directional pressure rod adjusting system: the movable seat 6 bottom is fixed with a horizontal guide rod 13, a plurality of sliding sleeves 14 are slidably connected on the guide rod 13, the sliding sleeves 14 are locked by screws, the bottom is connected with an inclined pressure rod 15, and the end of the pressure rod 15 can press the horizontal part of the positioning frame 11. The horizontal part of the positioning frame 11 is movably connected with the top surface of the base 1, the fastening head 12 is a hexagonal socket head cap screw, and the positioning frame 11 and the connecting plate 10 are replaceable as a whole. The position of the sliding sleeve 14 on the guide rod 13 can be adjusted and locked.

[0091] The working principle of the utility model is as follows:

[0092] Operation process:

[0093] Circuit board positioning

[0094] According to the model of the circuit board, the matching positioning frame 11 and connecting plate 10 assembly are selected;

[0095] The connecting plate 10 is inserted into the joint 9 of the first cylinder 3, and is fixed by rotating the hexagonal fastening head 12 into the lock hole;

[0096] The circuit board is placed on the top surface of the base 1, and the two side edges are clamped into the positioning frame 11, and the horizontal limiting is completed.

[0097] Step 2: pressure rod 15 adjustment and compression

[0098] Loosen the screw of the sliding sleeve 14 on the guide rod 13, according to the width of the circuit board and the support requirement, slide the sliding sleeve 14 to the target position such as the plate edge, reinforcing rib or hole dense area;

[0099] Tighten the screw of the sliding sleeve 14 to fix the horizontal position of the pressure rod 15;

[0100] Start the second cylinder 4, drive the movable seat 6 to move downward, and the pressure rod 15 moves downward along with it, and the inclined end of the pressure rod 15 compresses the circuit board, and the warping of the board is eliminated.

[0101] Step 3: drilling operation

[0102] The drill 7 is started, and the drill bit 8 is vertically fed under the driving of the movable seat 6 to complete drilling;

[0103] During the drilling process, the pressure rod 15 continuously applies downward pressure to suppress the impact vibration of the drill bit, and ensures the hole position accuracy (deviation ≤ ± 0.05 mm)

[0104] Compared with the prior art, the utility model has the following beneficial effects:

[0105] The line board drilling device can realize modular positioning frame design: the positioning frame 11 and the connecting plate 10 are in a welded integrated structure, and are quickly disassembled and assembled through the joint 9, and are suitable for different board types such as single-sided board, double-sided board and special-shaped board; when the board type is replaced, only the fastening head 12 needs to be disassembled, and the replacement is completed within 5 minutes, and the efficiency is improved by 60%.

[0106] Multi-stage adjustment of the pressing rod 15: a plurality of sliding sleeves 14 are arranged on the guide rod 13, and the horizontal positions of the pressing rods 15 can be distributed as required, and the weak areas of the line board such as thin areas and non-supporting hole positions are adapted;

[0107] Linkage pressing mechanism:

[0108] The second cylinder 4 drives the drill 7 and the pressing rod 15 to move synchronously, and the timing of pressing and drilling is consistent, so that the manual operation error is prevented;

[0109] The pressing force is accurately controlled by a cylinder pressure valve (the range is 50-200N), so that the line board is prevented from being deformed due to overpressure.

[0110] The following can be realized:

[0111] Drilling stability is improved: the vibration amplitude of the line board is reduced by 70% due to the uniform pressing of the plurality of pressing rods 15, and the hole roughness (Ra) is less than or equal to 6.3 μm;

[0112] Strong adaptability: various line boards with a thickness of 0.4-3.0 mm and a size of 100*100 mm to 400*300 mm can be compatible;

[0113] Efficiency optimization: the positioning frame 11 is replaced and the pressing rod is adjusted, and the time consumption is less than or equal to 10 minutes, and the device is suitable for small-batch and multi-variety production.

Claims

1. A circuit board drilling device, characterized in that, Includes a base (1), a body (2), a first cylinder (3), and a second cylinder (4). The top of the base (1) is fixedly connected to the body (2). The front of the body (2) is fixedly connected to the first cylinder (3). The front of the body (2) is fixedly connected to the second cylinder (4). The second cylinder (4) is installed vertically. The top of the base (1) is equipped with a track (5), and a movable seat (6) is movably connected to the track (5). The movable seat (6) is installed on the output end of the second cylinder (4), and a drilling machine (7) is installed at the front end of the movable seat (6). The drill bit (8) is fixedly connected to the output end of the drilling rig (7); The output end of the first cylinder (3) is fixedly connected to a connector (9). The front of the connector (9) is detachably connected to a connecting plate (10). The two ends of the connecting plate (10) are fixedly connected to positioning frames (11), which are bent. The connector (9) has a locking hole, and the connecting plate (10) has a fastening head (12) inserted into it. The fastening head (12) is threadedly connected to the locking hole on the connector (9). The bottom of the movable seat (6) is fixedly connected to a guide rod (13), which is installed horizontally. Several sliding sleeves (14) are movably connected to the guide rod (13). The sliding sleeves (14) can be fastened to their positions by screws. The bottom of the sliding sleeves (14) is fixedly connected to an oblique pressure rod (15), and the bottom end of the pressure rod (15) can press against the horizontal part of the positioning frame (11).

2. The circuit board drilling device as described in claim 1, characterized in that: The base (1) is welded to the body (2), and the first cylinder (3) and the second cylinder (4) are installed by screws.

3. The circuit board drilling device as described in claim 2, characterized in that: The first cylinder (3) is installed horizontally, and the rail (5) is made of stainless steel.

4. The circuit board drilling device as described in claim 3, characterized in that: The vertical position of the movable seat (6) is adjustable, and the drilling rig (7) is installed vertically.

5. The circuit board drilling device as described in claim 4, characterized in that: The connecting plate (10) and the positioning frame (11) are welded together, and the bending angle of the positioning frame (11) is ninety degrees.

6. The circuit board drilling device as described in claim 5, characterized in that: The horizontal part of the positioning frame (11) is movably connected to the top surface of the base (1), and the fastening head (12) is specifically an internal hex screw. The positioning frame (11) and the connecting plate (10) are replaceable as a whole.

7. A circuit board drilling device as described in claim 6, characterized in that: The position of the sliding sleeve (14) on the guide rod (13) is adjustable and lockable.

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