PCB milling cutter

Abstract

The utility model discloses a PCB milling cutter, including handle, one end of handle is fixedly connected with connecting shaft, and the other end fixedly connected with cutter body of connecting shaft, the circumference outer wall of connecting shaft is equipped with a plurality of U type groove, and the cutting edge is formed between adjacent U type groove, be equipped with the chip pocket on the cutter body, and the chip pocket is equipped with more than one, the chip pocket is intervally arranged in the upper surface of cutter body in spiral shape, and the front end of cutter body is equipped with the tool bit. The utility model discloses through the setting of cutting edge and U type groove, when cutting edge and printed circuit board contact, through the polishing of burr at the hole edge of cutting edge, and the burr of polishing is collected in U type groove, thereby avoiding the subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, and in particular to a PCB milling cutter. Background Technology

[0002] Printed circuit boards (PCBs) are indispensable components of electronic products. In the manufacturing process of PCBs, milling cutters are essential cutting tools. PCB milling cutters process PCBs by rotating at high speed.

[0003] Currently, existing PCB milling cutters, during high-speed cutting, produce burrs at the edges of the printed circuit board after cutting, requiring further processing, which is not only time-consuming and labor-intensive but also affects the processing efficiency of the PCB milling cutter. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing PCB milling cutters produce burrs at the edges of the printed circuit board after high-speed cutting, requiring further processing which is not only time-consuming and labor-intensive but also affects the processing efficiency of the PCB milling cutter. Therefore, this invention proposes a new type of PCB milling cutter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A PCB milling cutter includes a shank, one end of which is fixedly connected to a connecting shaft, and the other end of which is fixedly connected to a cutter body. The outer circumferential wall of the connecting shaft is provided with a plurality of U-shaped grooves, and a cutting edge is formed between adjacent U-shaped grooves.

[0006] Furthermore, the cutter body is provided with a chip removal groove, and there is one or more chip removal grooves.

[0007] Furthermore, the chip removal grooves are arranged in a spiral pattern at intervals on the upper surface of the cutter body.

[0008] Furthermore, a cutting head is provided at the front end of the blade body.

[0009] Furthermore, the front end of the tool holder has a frustum-shaped structure.

[0010] Furthermore, the diameter of the front end of the handle is the same as the outer diameter of the blade tip.

[0011] The beneficial effects of this utility model are as follows: 1. By setting the cutting edge and U-shaped groove, when the cutting edge contacts the printed circuit board, the cutting edge grinds the burrs at the edge of the hole. The ground burrs are collected in the U-shaped groove, thus avoiding subsequent processing.

[0012] 2. The drive device rotates the tool holder, which in turn rotates the tool head, thus drilling holes in the printed circuit board. The drilling debris is discharged through the chip removal channel. This method is convenient and fast. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a PCB milling cutter proposed in this utility model; Figure 2 This is a bottom view of the PCB milling cutter proposed in this utility model; Figure 3 This is a partial cross-sectional view of a PCB milling cutter proposed in this utility model.

[0014] In the diagram: 1. Tool holder; 2. Connecting shaft; 201. U-groove; 202. Cutting edge; 3. Tool body; 301. Chip removal groove; 302. Tool head. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-3 A PCB milling cutter includes a shank 1, a connecting shaft 2 integrally formed at one end of the shank 1, and a cutter body 3 integrally formed at the other end of the connecting shaft 2. The outer circumferential wall of the connecting shaft 2 is provided with multiple U-shaped grooves 201, and the burrs removed by grinding are collected in the U-shaped grooves 201. A cutting edge 202 is formed between adjacent U-shaped grooves 201. When the cutting edge 202 contacts the printed circuit board, the burrs at the edge of the hole are ground by the cutting edge 202.

[0017] The blade body 3 is provided with a chip removal groove 301, and there is one or more chip removal grooves 301. The chip removal grooves 301 are arranged in a spiral pattern on the upper surface of the blade body 3. The front end of the blade body 3 is provided with a cutting head 302. The blade holder 1 is driven to rotate by a driving device, thereby driving the cutting head 302 of the blade body 3 to rotate, and then performing a drilling operation on the printed circuit board. The front end of the blade holder 1 has a frustum-shaped structure, and the diameter of the front end of the blade holder 1 is the same as the outer diameter of the cutting head 302.

[0018] The working principle of this embodiment is as follows: During use, the drive device drives the handle 1 to rotate, thereby driving the blade head 302 of the blade body 3 to rotate, and then performing a drilling operation on the printed circuit board. The drilling output is discharged with the chip removal groove 301. The handle 1 has a connecting shaft 2 integrally formed at one end, and the blade body 3 integrally formed at the other end. The outer circumference of the connecting shaft 2 is provided with multiple U-shaped grooves 201. The burrs that are ground off are collected in the U-shaped grooves 201. A cutting edge 202 is formed between adjacent U-shaped grooves 201. When the cutting edge 202 contacts the printed circuit board, the burrs at the edge of the hole are ground off by the cutting edge 202.

[0019] The blade body 3 is provided with a chip removal groove 301, and there is one or more chip removal grooves 301. The chip removal grooves 301 are arranged in a spiral pattern on the upper surface of the blade body 3. The front end of the blade body 3 is provided with a cutting head 302. The blade holder 1 is driven to rotate by a driving device, thereby driving the cutting head 302 of the blade body 3 to rotate, and then performing a drilling operation on the printed circuit board. The front end of the blade holder 1 has a frustum-shaped structure, and the diameter of the front end of the blade holder 1 is the same as the outer diameter of the cutting head 302.

[0020] The working principle of this embodiment is as follows: When in use, the drive device drives the handle 1 to rotate, thereby driving the cutter head 302 of the cutter body 3 to rotate, and then performs a drilling operation on the printed circuit board. The drilling is discharged with the chip removal groove 301. When the cutting edge 202 contacts the printed circuit board, the cutting edge 202 grinds the burrs at the edge of the hole. The ground burrs are collected in the U-shaped groove 201.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A PCB milling cutter, comprising a tool holder (1), characterized in that, One end of the handle (1) is fixedly connected to a connecting shaft (2), and the other end of the connecting shaft (2) is fixedly connected to a blade body (3). The outer circumferential wall of the connecting shaft (2) is provided with multiple U-shaped grooves (201), and a cutting edge (202) is formed between adjacent U-shaped grooves (201).

2. A PCB milling cutter according to claim 1, characterized in that, The cutter body (3) is provided with a chip removal groove (301), and there is one or more chip removal grooves (301).

3. A PCB milling cutter according to claim 2, characterized in that, The chip removal grooves (301) are arranged in a spiral pattern on the upper surface of the cutter body (3).

4. A PCB milling cutter according to claim 2, characterized in that, The front end of the blade body (3) is provided with a blade head (302).

5. A PCB milling cutter according to claim 1, characterized in that, The front end of the handle (1) is a frustum-shaped structure.

6. A PCB milling cutter according to claim 1, characterized in that, The front diameter of the handle (1) is the same as the outer diameter of the blade (302).

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