A rapid drilling mechanism for circuit board processing

Abstract

This utility model discloses a rapid drilling mechanism for circuit board processing, comprising a drilling machine, a processing chamber, and a drill plate within the processing chamber; a positioning component consists of an inner groove at the bottom of the drill plate and a symmetrical mounting frame, with a hydraulic cylinder mounted at the bottom of the mounting frame, and a lifting plate fixed to the output end of the hydraulic cylinder; electric push rods are provided on both sides of the lifting plate, with a support plate fixed to the top of the electric push rods, and a positioning cone mounted on the support plate; a pin is mounted on the top surface of the lifting plate; a clearance groove for mounting a hard alloy ball is opened at the top of the positioning cone. During operation, the pre-drilled hole of the circuit board is inserted with a clearance fit with the positioning cone, and the hydraulic cylinder and electric push rods work together to drive the pin to push the ball out of the clearance groove and lock the circuit board. Disassembly is performed in reverse, achieving rapid disassembly. This structure avoids damage to the circuit board caused by traditional positioning pins and solves the problem of cumbersome disassembly and assembly of positioning pins, significantly improving installation efficiency and processing quality.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, specifically to a rapid drilling mechanism for circuit board processing. Background Technology

[0002] Currently, in the PCB drilling process, precision locating pins made of metal or high-strength engineering plastics are widely used to achieve positioning by using a small interference fit or transition fit with the pre-drilled locating holes on the PCB. While this method provides high positioning accuracy, it still has significant drawbacks:

[0003] First, for interference fit locating pins, manual pressing tools or small presses are typically required to press them into the locating holes and base holes on the circuit board, installing each pin individually, which is quite tedious. After processing, a special pin puller is needed to remove the locating pin from the hole. Although the special tool reduces the risk of damage, this process still requires manual operation and applies considerable pulling force, resulting in low efficiency. If the operation is improper or the pin / hole fit is too tight, there is still a risk of damaging the pin, tearing the edge of the locating hole on the circuit board, or causing micro-deformation of the board material, especially for thin high-density interconnect (HDI) boards or flexible printed circuit boards (FPCs).

[0004] A rapid drilling mechanism for circuit board processing is proposed to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a rapid drilling mechanism for circuit board processing, in order to solve the problems mentioned in the background art, which typically require the use of manual pressing tools or small presses to press the locating pins into the locating holes and base holes of the circuit board, and the installation of each locating pin is cumbersome; after processing, a special pin puller (pin puller) is required to pull the locating pins out of the holes. Although the special tool reduces the risk of damage, this process still requires manual operation and applies considerable pulling force, resulting in low efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid drilling mechanism for circuit board processing, comprising a drilling machine, the drilling machine comprising a processing cavity, an automatic drilling machine fixedly mounted on the top of the processing cavity, a drilling platform pad provided below the automatic drilling machine, and a circuit board mounted on the surface of the drilling platform pad;

[0007] The bottom surface of the processing cavity is provided with a positioning component. The positioning component includes an inner groove formed on the bottom surface of the drill plate. A mounting frame is symmetrically fixedly installed inside the inner groove. A base plate is symmetrically fixedly connected to the bottom surface of the mounting frame. A hydraulic cylinder is fixedly connected to the middle of the base plate. A lifting plate is fixedly connected to the output end of the hydraulic cylinder. Electric push rods are symmetrically fixedly connected to both sides of the lifting plate. A support plate is fixedly connected to the top surface of the electric push rod. Several positioning cones are fixedly installed on the top surface of the support plate. Several insertion posts are fixedly connected to the top surface of the lifting plate.

[0008] The top outer side of the positioning cone is provided with several clearance grooves, and a ball block is movably embedded in the clearance groove.

[0009] Preferably, the mounting frame is fixedly connected to the inner top surface of the groove, the positioning cone slides through the top surface of the drill plate, and the positioning cone is inserted into the pre-drilled hole of the circuit board with a clearance fit.

[0010] Preferably, the positioning cone is threadedly fixed to the support plate through a threaded hole.

[0011] Preferably, the insert post is slidably connected to the positioning cone, the top of the insert post has a round head, and the ball block fits against the outer side of the insert post.

[0012] Preferably, the drill plate is fixedly connected to the inner bottom surface of the machining cavity by bolts.

[0013] Preferably, the drilling machine is provided with a de-adhesion mechanism, which includes stepped grooves. The stepped grooves are symmetrically opened on the top surface of the drilling platform pad, and stepped blocks are slidably connected inside the stepped grooves.

[0014] Preferably, the top surface of the stepped block is fixedly connected to an inverted curved plate, which is symmetrically distributed on both sides of the circuit board.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this rapid drilling mechanism for circuit board processing can realize rapid locking and disassembly of circuit boards, solving the problems of troublesome installation and laborious disassembly, and can avoid hidden damage and deformation of circuit boards during compression and fixing, thus ensuring their quality. The specific details are as follows:

[0016] 1. By using a positioning cone to fit the pre-drilled hole on the circuit board, and employing a pin to compress the ball block out of the clearance groove, the ball block presses against the edge of the pre-drilled hole on the circuit board. Combined with the positioning cone's horizontal limiting effect on the circuit board, this achieves rapid locking of the circuit board, reducing the hassle of installing metal pins. When disassembling the circuit board, traditional metal pin positioning requires tools to pull out, which is laborious. In contrast, this design only requires activating the hydraulic cylinder and electric actuator to return the relevant components to their initial positions, and then squeezing the ball block to retract it into the clearance groove, allowing for rapid disassembly of the circuit board. Furthermore, other side-clamp positioning devices are difficult to control when pressing and fixing, which can easily cause hidden damage and deformation to the circuit board during the initial production stage. This positioning method effectively avoids this problem, ensuring the quality of the circuit board.

[0017] 2. The inverted curved plates in the debonding mechanism are symmetrically distributed on both sides of the circuit board. When the stepped block moves to the appropriate position, the inverted curved plates can hold the edge of the circuit board when it is difficult to separate the circuit board from the ball block, preventing the circuit board from moving too high, assisting the circuit board to separate from the ball block, so that the circuit board can be disassembled smoothly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting structure of the drill press pad and the circuit board;

[0020] Figure 3 This is a schematic diagram of the top surface structure of the drill press pad.

[0021] Figure 4 This is a schematic diagram of the bottom structure of the drill press pad.

[0022] Figure 5 This is a cross-sectional structural diagram of the mounting frame;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the positioning cone.

[0024] In the diagram: 1. Drilling machine; 101. Machining cavity; 102. Automatic drilling machine; 103. Drilling platform pad; 104. Circuit board; 2. Positioning assembly; 201. Inner groove; 2011. Groove; 202. Mounting frame; 203. Base plate; 204. Hydraulic cylinder; 205. Lifting plate; 206. Electric actuator; 207. Insert post; 2071. Round head; 208. Positioning cone; 209. Alternating groove; 210. Ball block; 3. Debonding mechanism; 301. Stepped groove; 302. Stepped block; 303. Inverted curved plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 The present invention provides a technical solution: a rapid drilling mechanism for circuit board processing, including a drilling machine 1, the drilling machine 1 including a processing cavity 101, an automatic drilling machine 102 fixedly installed on the top of the processing cavity 101, a drilling platform 103 provided below the automatic drilling machine 102, and a circuit board 104 installed on the surface of the drilling platform 103.

[0027] A positioning component 2 is provided on the bottom surface of the machining cavity 101. The positioning component 2 includes an inner groove 201 formed on the bottom surface of the drill plate 103. A mounting frame 202 is symmetrically fixedly installed inside the inner groove 201. A base plate 203 is symmetrically fixedly connected to the bottom surface of the mounting frame 202. A hydraulic cylinder 204 is fixedly connected to the middle of the base plate 203. A lifting plate 205 is fixedly connected to the output end of the hydraulic cylinder 204. Electric push rods 206 are symmetrically fixedly connected to both sides of the lifting plate 205. A support plate 2061 is fixedly connected to the top surface of the electric push rods 206. A plurality of positioning cones 208 are fixedly installed on the top surface of the support plate 2061. The top of the lifting plate 205... A number of posts 207 are fixedly connected to the surface; among them, a number of clearance grooves 209 are opened on the outer side of the top of the positioning cone 208, and a ball block 210 is movably embedded in the clearance groove 209; first, the reserved hole of the circuit board 104 is aligned with the positioning cone 208 and inserted, and the circuit board 104 is installed on the surface of the drill plate 103. Then, the electric push rod 206 and the hydraulic cylinder 204 are activated, so that the clearance groove 209 is lowered and the post 207 is moved upward. The two move relative to each other, so that the top end 2071 of the post 207 squeezes the ball block 210 out of the clearance groove 209 until the outer side of the post 207 is in contact with the ball block 210. At this time, the ball block 210 stably extends out of the clearance groove 209. The ball block 210 is positioned in the slot 209 and is restricted by the clearance slot 209, preventing it from completely disengaging. Then, the hydraulic cylinder 204 is activated, causing the lifting plate 205, the support plate 2061, and the positioning cone 208 to descend as a whole. This lowers the height of the ball block 210 and presses against the edge of the pre-drilled hole in the circuit board 104, locking the circuit board 104 vertically. Combined with the horizontal limiting effect of the positioning cone 208, this allows the circuit board 104 to be quickly locked without the need for an interference-fit metal pin, reducing the hassle of installing metal pins. When it is necessary to disassemble the circuit board 104, the hydraulic cylinder 204 is activated. This causes the clearance groove 209 to move upward, thereby disengaging the clearance groove 209 from the circuit board 104. Then, the electric push rod 206 is activated to restore the positioning cone 208 and the insertion post 207 to their initial positions. At this time, the ball block 210 is no longer squeezed by the insertion post 207. Then, the outer edge of the ball block 210 is retracted into the clearance groove 209, ultimately allowing the circuit board 104 to be quickly disassembled. This avoids the situation where traditional metal pin positioning requires tools to pull out, making disassembly relatively laborious. It also avoids the situation where other side-clamp positioning devices, due to the difficulty in controlling the squeezing force, cause hidden damage and deformation of the circuit board 104 during the initial production stage.

[0028] The mounting frame 202 is fixedly connected to the inner top surface of the groove 201, the positioning cone 208 slides through the top surface of the drill plate 103, the positioning cone 208 is inserted into the reserved hole of the circuit board 104 and has a clearance fit; the positioning cone 208 can smoothly pass through the reserved hole of the circuit board 104.

[0029] The positioning cone 208 is threadedly fixed to the support plate 2061 through a threaded hole; the bottom of the positioning cone 208 is provided with an external thread. The positioning cone 208 is made of high-strength alloy. By rotating the positioning cone 208, the positioning cone 208 can be pulled out from the threaded hole, thereby separating the positioning cone 208 from the support plate 2061, and allowing the positioning cone 208 to be disassembled and replaced.

[0030] The insertion post 207 and the positioning cone 208 are slidably connected. The top of the insertion post 207 has a round head 2071, and the ball block 210 fits against the outer side of the insertion post 207. The round head 2071 can not only assist the ball block 210 to move laterally, but also prevent the ball block 210 from falling out of the relief groove 209 and completely entering the interior of the positioning cone 208. The ball block 210 is made of high-strength hard alloy, and the inner side of the relief groove 209 is higher on the outside and lower on the inside. It will guide the ball block 210 in the moving state to automatically roll into the positioning cone 208 under the influence of gravity and equipment vibration, avoiding interference with the edge of the reserved hole of the circuit board 104. Afterwards, you can pinch the top of the positioning cone 208 with your fingers and rotate it around. The pressure of your hand will help the ball block 210 in the slightly stuck state to reset. The operation is convenient and does not require pressing each ball block 210 individually, avoiding the situation where all ball blocks 210 need to be pressed.

[0031] The drill plate 103 is fixedly connected to the inner bottom surface of the machining cavity 101 by bolts; the drill plate 103 can be disassembled and replaced by removing the bolts.

[0032] The drilling machine 1 is equipped with a debonding mechanism 3, which includes a stepped groove 301. The stepped groove 301 is symmetrically opened on the top surface of the drilling platform pad 103. A stepped block 302 is slidably connected inside the stepped groove 301. The stepped groove 301 and the stepped block 302 have friction, which can ensure that their position is fixed after movement. After the circuit board 104 is installed, it is pushed to move to both sides of the circuit board 104.

[0033] The top surface of the step block 302 is fixedly connected to an inverted curved plate 303, which is symmetrically distributed on both sides of the circuit board 104. When the step block 302 moves to both sides of the step groove 301, after the processing is completed, when the positioning cone 208 moves upward, the positioning cone 208 sticks to the circuit board 104 due to the compression, so that the circuit board 104 cannot be separated from the ball block 210. The inverted curved plate 303 can hold the edge of the circuit board 104 to prevent it from moving upward too much and assist the circuit board 104 in separating from the ball block 210.

[0034] Working principle: Before using this type of rapid drilling mechanism for circuit board processing, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6As shown, first, the reserved hole of the circuit board 104 is aligned with the positioning cone 208 and inserted and installed on the surface of the drill plate 103. The electric push rod 206 and the hydraulic cylinder 204 are activated, causing the insertion post 207 to move upward and the clearance groove 209 to descend. The top of the insertion post 207 squeezes the ball block 210 out of the clearance groove 209. Then, the hydraulic cylinder 204 causes the ball block 210 to descend and press against the edge of the reserved hole of the circuit board 104, which, together with the positioning cone 208, achieves rapid locking of the circuit board 104.

[0035] After the circuit board 104 is installed, the stepped block 302 is pushed to move to both sides of the circuit board 104 within the stepped groove 301. After processing, the hydraulic cylinder 204 is activated to move the clearance groove 209 upward and detach it from the circuit board 104. Then, the electric push rod 206 is activated to restore the positioning cone 208 and the insertion post 207 to their initial positions. The ball block 210 is pinched to retract into the clearance groove 209. At the same time, the inverted curved plate 303 clamps the edge of the circuit board 104, assisting in the separation of the circuit board 104 from the ball block 210, thus achieving rapid disassembly of the circuit board 104.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid drilling mechanism for circuit board processing, comprising a drilling machine (1), the drilling machine (1) comprising a processing cavity (101), an automatic drilling machine (102) fixedly mounted on the top of the processing cavity (101), a drilling platform pad (103) provided below the automatic drilling machine (102), and a circuit board (104) mounted on the surface of the drilling platform pad (103); Its features are, Also includes: The bottom surface of the processing cavity (101) is provided with a positioning component (2). The positioning component (2) includes an inner groove (201) opened on the bottom surface of the drill plate (103). An installation frame (202) is symmetrically fixedly installed inside the inner groove (201). A base plate (203) is symmetrically fixedly connected to the bottom surface of the installation frame (202). A hydraulic cylinder (204) is fixedly connected to the middle of the base plate (203). A lifting plate (205) is fixedly connected to the output end of the hydraulic cylinder (204). Electric push rods (206) are symmetrically fixedly connected to both sides of the lifting plate (205). A support plate is fixedly connected to the top surface of the electric push rod (206). A plurality of positioning cones (208) are fixedly installed on the top surface of the support plate. A plurality of inserts (207) are fixedly connected to the top surface of the lifting plate (205). The positioning cone (208) has several clearance grooves (209) on its top outer side, and a ball block (210) is movably embedded in the clearance groove (209).

2. The rapid drilling mechanism for circuit board processing according to claim 1, characterized in that: The mounting frame (202) is fixedly connected to the inner top surface of the inner groove (201), the positioning cone (208) slides through the top surface of the drill plate (103), and the positioning cone (208) is inserted into the pre-drilled hole of the circuit board (104) with clearance fit.

3. The rapid drilling mechanism for circuit board processing according to claim 1, characterized in that: The positioning cone (208) is threadedly connected to the support plate through a threaded hole.

4. The rapid drilling mechanism for circuit board processing according to claim 1, characterized in that: The insert (207) is slidably connected to the positioning cone (208), and the top of the insert (207) is provided with a round head (2071). The ball block (210) is attached to the outer side of the insert (207).

5. The rapid drilling mechanism for circuit board processing according to claim 1, characterized in that: The drill plate (103) is fixedly connected to the inner bottom surface of the machining cavity (101) by bolts.

6. The rapid drilling mechanism for circuit board processing according to claim 1, characterized in that: The drilling machine (1) is equipped with a debonding mechanism (3), which includes a stepped groove (301). The stepped groove (301) is symmetrically opened on the top surface of the drilling platform pad (103), and a stepped block (302) is slidably connected inside the stepped groove (301).

7. The rapid drilling mechanism for circuit board processing according to claim 6, characterized in that: The top surface of the stepped block (302) is fixedly connected to an inverted curved plate (303), which is symmetrically distributed on both sides of the circuit board (104).

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