Rotor milling cutter and blade fixing structure

Abstract

The invention relates to a rotor milling cutter and a blade fixing structure, and relates to the technical field of metal machining. The rotor milling cutter and the blade fixing structure each comprise a cutter body (1), blades (2) and pressing blocks, wherein a plurality of blade grooves are formed in the cutter body (1), a cushion block (10) is mounted on each blade groove, pressing block grooves (16) used for mounting the pressing blocks are formed beside the blade grooves, the blades (2) are fixed to the cushion blocks (10) through the pressing blocks to form a complete rotor milling cutter cutting edge (11), adjusting block grooves (13) are formed in blade positioning surfaces (22) of the blades (2), adjusting blocks (5) used for adjusting the angles of the blades (2) are mounted on the adjusting block grooves (13), certain included angles alpha are formed between the contact surfaces between the blades (2) and the cushion blocks (10) and the axial directions of the blades (2), and certain included angles beta are formed between the contact surfaces between the blades (2) and the cushion blocks (10) and the radial directions of the blades (2). According to the rotor milling cutter and the blade fixing structure, it can be guaranteed that the blades are not prone to loosen in the machining process, and the blades can further be finely adjusted.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a rotor milling cutter and a blade fixing structure. Background technique [0002] At present, in the rotor processing industry, the applied rotor milling cutters are basically pressed by a single pressure block due to the fixing method of the blade. For example, the patent No. CN201720478341. body, blade and pressing block; the cutter body has a blade mounting platform and a blade mounting groove, and the blade mounting platform has a blade mounting surface: the feature is that the blade has an axial positioning groove on the tangential positioning surface. The briquetting block has a briquetting bottom surface, an arc positioning surface and a left-handed screw hole. The blade mounting groove has a radial positioning platform, the briquetting block mounting groove bottom and the arc locating groove hold the arc locating surface, and the blade mounting surface has an ax...

AI Technical Summary

Problems solved by technology

The briquetting block has a briquetting bottom surface, an arc positioning surface and a left-handed screw hole. The blade mounting groove has a radial positioning platform, the briquetting block mounting groove bottom and the arc locating groove hold the arc locating surface, and the blade mounting surface has an axial Positioning platform; there is a right-hand screw hole at the bottom of the mounting groove of the pressing block; the blade is pressed tightly on the blade mounting surface, the axial positioning platform is inserted into the axial positioning groove of the blade, and the bottom surface of the blade is closely attached to the radial positioning platform; The left-hand thread of the double-ended screw is screwed into the left-hand screw hole of the pressing block, and the right-hand thread is screwed into the right-hand screw hole at the bottom of the installation groove of the pressing block. Tight, and there is no reliable fine-tuning structure, so that in practical applications, the blades are loose and shifted during the processing process, resulting in time-to-time difference in the machining accuracy of the rotor, and the machining accuracy is unstable

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