Circuit board fillet cutting and grinding device

Abstract

The utility model relates to a circuit board round corner cutting and grinding device which comprises a placing plate, a base plate used for placing a circuit board and a cutting and grinding mechanism. The base plate is mounted in the center of the upper surface of the placement plate, and two sliding grooves distributed in a splayed shape are formed in the placement plate; limiting plates are arranged on the left side and the right side of the upper surface of the containing plate and attached to the left side and the right side of the base plate. According to the circuit board fillet cutting and grinding device, the output end of an electric push rod retracts to drive a transverse guide rail to move backwards, meanwhile, two moving blocks, two connecting shafts and two sliding blocks are pushed to move in the direction of a sliding groove, and the two moving blocks oppositely slide on the outer side of the transverse guide rail; the two sliding blocks drive the polishing assemblies above the two sliding blocks to move towards the two corners of the circuit board, and after the two polishing assemblies are attached to the two corners of the circuit board, the two corners of the circuit board can be polished at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board processing, specifically to a circuit board fillet cutting and grinding device. BACKGROUND

[0002] The circuit board is assembled by pressing, the user will stack a copper foil, a substrate and another copper foil in sequence, and after adding resin between the substrate and each copper foil, pressing is carried out. However, the circuit board after pressing will have excess resin overflowing outside the circuit board, the user will cut the circuit board to remove the excess resin, obtain the useful range, and edge the edges of the cut circuit board, wherein the cutting and edge grinding above refer to cutting the upper and lower sides of the circuit board respectively by half cutting mode, and rounding the four straight angles of the cut board to make the board corners smooth.

[0003] At present, in the circuit board manufacturing industry, the technical means widely used for the corner processing of the circuit board is still relatively traditional and limited in efficiency. The specific operation process usually depends on the manual operation of the operator: first, the operator needs to hold the circuit board to ensure its stability and prevent it from falling or being damaged; then, according to the predetermined order, the circuit board is put into the specially designed circuit board rounding device one by one. This device is specially designed for rounding the corners of the circuit board, aiming to remove the straight edge and reduce the stress concentration problem that may occur during assembly or use, thereby improving the durability and safety of the circuit board.

[0004] However, the current processing method has a significant limitation, that is, each operation step can only process the corner of the circuit board. This means that to complete the rounding of all corners of the circuit board, the operator needs to repeat the action of putting in and taking out multiple times, which not only consumes time and effort, but also greatly limits the production efficiency. In addition, due to multiple physical operations, it may also increase the risk of damage to the circuit board during transmission, such as scratching and deformation, thereby affecting the final quality and yield of the product. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a circuit board fillet cutting and grinding device to solve the problems raised in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a circuit board fillet cutting and grinding device, comprising a placing plate, a pad plate for placing the circuit board and a cutting and grinding mechanism;

[0007] The pad plate is installed at the center of the upper surface of the placing plate, and two sliding grooves in the shape of a splayed are opened in the inside of the placing plate;

[0008] The left and right sides of the upper surface of the placing plate are provided with limiting plates which are in close contact with the left and right sides of the backing plate, the upper surface of the placing plate is provided with a baffle which is in close contact with the front side of the backing plate, and the cutting and grinding mechanism is arranged on the placing plate;

[0009] The cutting and grinding mechanism comprises sliding blocks which are respectively slidingly connected in the interiors of the two sliding grooves, and a grinding assembly is arranged on one of the sliding blocks;

[0010] An electric push rod is arranged on the lower surface of the placing plate, the output end of the electric push rod is drivingly connected with a transverse guide rail, a connecting shaft is arranged on the lower surface of the sliding block, the outer sides of the transverse guide rail are slidingly connected with two moving blocks, and the outer sides of the two connecting shafts are respectively sleeved with the two moving blocks.

[0011] Further, two guide strips are arranged in the interiors of the sliding grooves and along the extending directions of the sliding grooves, and grooves which are matched with the guide strips are formed in the two sides of the sliding block.

[0012] Further, the two corner edges of the backing plate are respectively located directly above the two sliding grooves.

[0013] Further, the grinding assembly comprises a mounting seat which is mounted on the sliding block, a grinding roller which is rotatably connected in the interior of the mounting seat, and a motor which is arranged on the mounting seat and drivingly connected with the grinding roller.

[0014] Further, the outer circumferential surface of the grinding roller is concave towards the axial line direction thereof.

[0015] Further, the grinding rollers on the left and right sides are distributed in an inverted eight-character shape.

[0016] Further, the upper surface of the placing plate is further provided with a pressing-down assembly, the pressing-down assembly comprises a support frame which is mounted on the upper surface of the placing plate, a cylinder which is arranged at the center of the upper end surface of the support frame, and a pressing plate which is drivingly connected with the output end of the cylinder.

[0017] Further, the pressing plate is made of elastic rubber.

[0018] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0019] 1. The circuit board round corner cutting and grinding device, the retraction of the output end of the electric push rod drives the transverse guide rail to move backward, simultaneously drives the two moving blocks and the two connecting shafts and the two sliding blocks to move along the direction of the sliding grooves, the two moving blocks oppositely slide on the outer sides of the transverse guide rail, the two sliding blocks drive the grinding assemblies above them to move towards the two corner edges of the circuit board, and when the two grinding assemblies are in close contact with the two corner edges of the circuit board, the two corner edges of the circuit board can be simultaneously ground.

[0020] 2、The circuit board round corner cutting and grinding device, when the circuit board is placed on the base plate, the lower pressing plate is pushed downward by the output end of the air cylinder, so that the lower pressing plate is attached to the upper surface of the circuit board, the friction between the circuit board and the base plate is effectively increased, and the stability of the circuit board in the round corner processing process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a structure schematic view of the utility model;

[0022] Fig. 2 It is a structure schematic view of the utility model from the top;

[0023] Fig. 3 It is a structure schematic view of the polishing assembly of the utility model.

[0024] In the drawing: 1, placing plate; 2, base plate; 3, cutting and grinding mechanism; 301, sliding block; 302, electric push rod; 303, transverse guide rail; 304, connecting shaft; 305, moving block; 306, mounting seat; 307, polishing roller; 308, motor; 4, sliding groove; 5, limiting plate; 6, baffle; 7, lower pressing assembly; 701, support frame; 702, air cylinder; 703, lower pressing plate. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Please refer to Figs. 1-3 A circuit board round corner cutting and grinding device in the embodiment is used for cutting and grinding two corners of the circuit board simultaneously, and the efficiency of the circuit board round corner processing is increased.

[0027] Specifically, it comprises a placing plate 1, a base plate 2 for placing the circuit board and a cutting and grinding mechanism 3; the base plate 2 is installed at the center of the upper surface of the placing plate 1, two sliding grooves 4 in the shape of an eight character are formed in the inside of the placing plate 1; limiting plates 5 are arranged on the left and right sides of the upper surface of the placing plate 1, the limiting plates 5 are attached to the left and right sides of the base plate 2, the upper surface of the placing plate 1 is provided with a baffle 6 attached to the front side of the base plate 2, and the cutting and grinding mechanism 3 is arranged on the placing plate 1.

[0028] In actual use, the circuit board is placed on the base plate 2, the front side of the base plate 2 is attached to the baffle 6, and the base plate 2 is also attached between the two limiting plates 5, and then the grinding mechanism 3 is operated to grind the two corners of the circuit board.

[0029] In detail, the grinding mechanism 3 includes sliding blocks 301 slidingly connected in the two sliding grooves 4 respectively, and a grinding assembly is arranged on one of the sliding blocks 301; an electric push rod 302 is arranged on the lower surface of the placing plate 1, the output end of the electric push rod 302 is drivingly connected to a transverse guide rail 303, a connecting shaft 304 is arranged on the lower surface of the sliding block 301, and two moving blocks 305 are slidingly connected to the outer sides of the transverse guide rail 303 and the two connecting shafts 304 respectively.

[0030] In actual use, the output end of the electric push rod 302 is retracted to drive the transverse guide rail 303 to move backward, and the two moving blocks 305 and the two connecting shafts 304 and the two sliding blocks 301 are pushed to move along the direction of the sliding grooves 4, and the two moving blocks 305 also slide against each other on the outer sides of the transverse guide rail 303, the grinding assembly above the two sliding blocks 301 is driven to move toward the two corners of the circuit board, and when the two grinding assemblies are attached to the two corners of the circuit board, the two corners of the circuit board can be ground at the same time.

[0031] Further, in order to ensure the stability of the sliding block 301 moving in the sliding groove 4, two guide strips are arranged in the sliding groove 4 and extend along the direction of the sliding groove 4, and corresponding to the guide strips, grooves matched with the guide strips are formed in the two sides of the sliding block 301.

[0032] In actual use, when the sliding block 301 moves, it also slides on the outer sides of the two guide strips in the sliding groove 4, and the movement of the sliding block 301 is guided and limited by the two guide strips, so that the sliding block 301 moves along the extension direction of the sliding groove 4.

[0033] In addition, the two corners of the base plate 2 are located directly above the two sliding grooves 4, that is, when the two grinding assemblies move along the extension direction of the sliding groove 4, they will contact the two corners of the circuit board placed on the base plate 2, so as to grind the two corners of the circuit board.

[0034] Specifically, the grinding assembly includes a mounting seat 306 mounted on the sliding block 301, a grinding roller 307 rotatably connected in the mounting seat 306, a motor 308 drivingly connected to the grinding roller 307 is arranged on the mounting seat 306, the outer periphery of the grinding roller 307 is concave to the axial line direction, and the left and right grinding rollers 307 are distributed in an inverted eight shape.

[0035] In actual use, the motor 308 drives the polishing roller 307 to rotate, and when the polishing roller 307 is attached to the edge of the circuit board, the polishing roller 307 can perform the rounding processing on the edge of the circuit board in the rotating process.

[0036] Please refer to Fig. 3 In actual setting, the outer circumferential surface of the polishing roller 307 is concave to the axial line direction, that is, when the polishing roller 307 is polishing, the shape of the edge of the circuit board is arc-shaped.

[0037] Further, in order to improve the stability of the circuit board during polishing, the upper surface of the placing plate 1 is further provided with a pressing assembly 7, which comprises a support frame 701 mounted on the upper surface of the placing plate 1, and a cylinder 702 is arranged at the center of the upper surface of the support frame 701, and the output end of the cylinder 702 is drivingly connected with a pressing plate 703.

[0038] In actual use, when the circuit board is placed on the pad 2, the output end of the cylinder 702 is extended to push the pressing plate 703 to move downward, so that the pressing plate 703 is attached to the upper surface of the circuit board, effectively increasing the friction between the circuit board and the pad 2, and improving the stability of the circuit board during rounding processing.

[0039] In addition, in order to prevent the pressing plate 703 from causing wear to the upper surface of the circuit board, the pressing plate 703 is preferably made of elastic rubber.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit board round corner dicing device characterized by: The utility model provides a circuit board cutting and grinding device, which comprises a placing plate (1), a base plate (2) for placing the circuit board and a cutting and grinding mechanism (3). The base plate (2) is installed at the center of the upper surface of the placing plate (1), and two sliding grooves (4) in the shape of an eight character are formed in the inside of the placing plate (1). Limiting plates (5) are arranged on the left and right sides of the upper surface of the placing plate (1), and the limiting plates (5) are in close contact with the left and right sides of the base plate (2); the upper surface of the placing plate (1) is provided with a baffle (6) in close contact with the front side of the base plate (2); and the cutting and grinding mechanism (3) is arranged on the placing plate (1). The cutting and grinding mechanism (3) comprises sliding blocks (301) slidingly connected in the two sliding grooves (4) respectively, and a grinding assembly is arranged on one of the sliding blocks (301). An electric push rod (302) is arranged on the lower surface of the placing plate (1), the output end of the electric push rod (302) is drivingly connected with a transverse guide rail (303), a connecting shaft (304) is arranged on the lower surface of the sliding block (301), and the outer side of the transverse guide rail (303) is slidingly connected with two moving blocks (305), and the two moving blocks (305) are respectively sleeved on the outer sides of the two connecting shafts (304).

2. A circuit board corner chamfering apparatus according to claim 1, wherein: Two guide strips are arranged in the sliding grooves (4) and extend along the direction of the sliding grooves (4), and grooves matched with the guide strips are formed in the left and right sides of the sliding blocks (301).

3. The device according to claim 1, wherein: The two corners of the base plate (2) are located directly above the two sliding grooves (4) respectively.

4. The device of claim 1 wherein: The grinding assembly comprises a mounting seat (306) mounted on the sliding block (301), a grinding roller (307) rotatably connected in the mounting seat (306), and a motor (308) drivingly connected with the grinding roller (307) and arranged on the mounting seat (306).

5. A circuit board corner chamfering apparatus according to claim 4, wherein: The outer circumferential surface of the grinding roller (307) is concave towards the axial line direction.

6. A circuit board corner chamfering apparatus according to claim 4, wherein: The grinding rollers (307) on the left and right sides are in the shape of an inverted eight character.

7. The device of claim 1 wherein: The upper surface of the placing plate (1) is further provided with a pressing assembly (7), the pressing assembly (7) comprises a support frame (701) mounted on the upper surface of the placing plate (1), a cylinder (702) arranged at the center of the upper end surface of the support frame (701), and a pressing plate (703) drivingly connected with the output end of the cylinder (702).

8. A circuit board corner chamfering apparatus according to claim 7, wherein: The pressing plate (703) is made of elastic rubber.

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