[Milling Chamfering Machine] Machine performance characteristics of chamfering machine
Machine performance characteristics of chamfering machine
1. Suitable for workpieces without heat treatment, chamfering of small molds and mechanical parts;
2. Cutting by side milling cutter, the blade replacement is convenient and rapid, and the chamfering precision is good;
3. Chamfer size: 0 ~ 6mm;
4. Chamfer adjustment angle: 90° chamfering machine does not need to be clamped, the slide rail is made of high quality die steel after heat treatment, and it is durable.
The operation is simple, the chamfer is regular, the adjustment is convenient, the economy is reliable, the efficiency is 10-15 times of the traditional equipment, and the rapid machine chamfering is the development trend of the mechanical industry.
Small workpieces suitable for batch processing, mold, mold chamfering, sheet metal processing, machine equipment manufacturing, etc. Widely used in steel, steel structure, mold, formwork, metal processing, hardware parts manufacturing and other industries.
Principle design of the structure of the drill-reaming chamfering compound cutter
The purpose of the tool design is to provide a tool that combines a drill bit, a reamer and a chamfering tool with high production efficiency, high machining accuracy, and low production cost. The cutter comprises a cutter head and a shank. The cutter head is composed of a twist drill bit, a reamer and a chamfered portion. The reamer cutter has a four-tooth spiral blade, the shank is a straight shank, and the whole cutter structure is integral. Tool.
(1) Drilling part: According to the high drilling efficiency of the inner hole of the drill bit, the drilling part of the tool still adopts the structure of the traditional twist drill, and the spiral angle of the spiral groove portion of the cutter body is 300. The side edge should be ground with a 0.02 - 0.04mm inverted cone to reduce friction, and the chips processed by the blade can be smoothly guided to the spiral groove. This part completes the roughing process of the hole, and the surface roughness and the straightness of the hole are poor, and the dimensional accuracy is not high, so that the preparation process for the subsequent reaming process is completed.
(2) Reaming part: Four-tooth double-edged outer chip reaming reamer, each cutting edge consists of a precise main cutting edge and a minor cutting edge. When working, the main cutting edge plays a major cutting role, and the minor cutting edge acts as a light trimming action. The reaming portion is placed in the borehole to complete the finishing of the hole to ensure the accuracy of the hole (the positional accuracy and surface roughness of the å‘L).
(3) Chamfering part: After finishing the hole finishing, continue to chamfer the hole using a chamfering cutter. Chamfering should be carried out by manual operation.
Since the composite tool is generally used to machine a hole having a relatively small aperture, the tool holding portion (ie, the holder) is made into a straight shank. In order to avoid chip removal and avoid the parts of the tool participating in the cutting at the same time (reducing the cutting force), the starting point of the cutting part of each tool has a certain interval in the axial direction, and also increases the chip space, so that the chip removal is smooth and avoids The chips cut by the front and rear flank interfere with each other and block. In addition, consider placing a suitable overrun groove for the grinding wheel during the tool manufacturing process. The tool size is determined by the specific size of the hole. 
Editor in charge: Zhao Hongli
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