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Disc milling cutter adopting flatly staggered teeth and variable cutting width and applied to slotting rough machining of blisk channel

An integral blisk and runner technology, applied in milling cutters, manufacturing tools, milling machine equipment, etc., can solve the problems of fixed cutting width, easy tool wear, low processing efficiency, etc., to achieve easy accuracy, convenient replacement process, and tool life. improved effect

Inactive Publication Date: 2017-02-01
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low processing efficiency, easy wear of the tool, poor chip removal, fixed cutting width, and high cost in the existing overall blisk slotting, and proposes an integrated blisk flow channel that is rough and flat-mounted. Tooth variable cutting wide disc milling cutter

Method used

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  • Disc milling cutter adopting flatly staggered teeth and variable cutting width and applied to slotting rough machining of blisk channel
  • Disc milling cutter adopting flatly staggered teeth and variable cutting width and applied to slotting rough machining of blisk channel
  • Disc milling cutter adopting flatly staggered teeth and variable cutting width and applied to slotting rough machining of blisk channel

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specific Embodiment approach 1

[0021] Specific implementation mode one: as Figure 1 ~ Figure 3 As shown, the overall blisk flow channel is thick and flat-mounted with staggered teeth and variable-cut wide disc milling cutter, and its composition includes a cutter body 1, a central bush 14, a plurality of positioning screws 2 and a plurality of blades 3 (the number of blades 3 is preferably 12), the center of the cutter body 1 is processed with a central through hole, the central bushing 14 is fixedly installed in the central through hole of the cutter body 1, and the inner wall of the central bushing 14 is processed with a keyway 15 along the axial direction, The outer circumferential surface of the cutter body 1 is uniformly processed with a plurality of L-shaped chip removal grooves 13, and the plurality of L-shaped chip removal grooves 13 are all set through the thickness of the cutter body 1, and each L-shaped chip removal groove 13 A sipe 9 is processed on the side of the short groove (preferably the ...

specific Embodiment approach 2

[0026] Specific implementation mode two: as Figure 1 ~ Figure 3 As shown in the specific embodiment 1, in the overall blisk flow channel described in the first embodiment, the disc milling cutter with the wrong teeth and variable cutting width is designed, and each of the sipes 9 is designed with a pre-installation angle: that is, the axial rake angle is 4 °~6°, the radial rake angle is 6°~8°, the axial relief angle is 13°~15°, and the radial relief angle is 10°~12°.

specific Embodiment approach 3

[0027] Specific implementation mode three: as figure 1 and figure 2 As shown in the specific embodiment 1, the overall blisk flow channel is thick and flat-mounted with staggered teeth and variable cutting width. .

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Abstract

The invention provides a disc milling cutter adopting flatly staggered teeth and variable cutting width and applied to slotting rough machining of a blisk channel and belongs to the technical field of cutters for cutting machining. Multiple L-shaped chip removal slots are uniformly distributed and formed in an outer circumferential surface of a cutter body, a cutter slot is formed in the short slot side surface of each L-shaped chip removal slot, every two adjacent cutter slots are staggered in the axial direction of the cutter body, a slider slot is formed in the bottom surface of each cutter slot, a slider is arranged in each slider slot, and a blade is arranged in each cutter slot and detachably and fixedly connected with the corresponding slider; the slider is arranged in each slider slot, a gap is formed between each slider slot and the slider in the axial direction, a tightening screw penetrates into a second through hole in each slider slot and is in fastening connection with a first threaded hole in the slider, a second threaded hole is formed in the slot side wall, perpendicular to the axial direction, of each cutter slot, a set screw is tightened in each second threaded hole, and each set screw is propped against the corresponding blade in the axial direction. The disc milling cutter is applied to milling machining of a blisk.

Description

technical field [0001] The invention relates to a disc milling tool, which belongs to the technical field of cutting tools. Background technique [0002] As an important core structural component of an aero-engine, blisks have complex structures, large blade twists, and poor flow channel opening. Most of the blanks are made of difficult-to-machine materials such as titanium alloys, which brings great difficulty to the manufacture of blisks. The material removal rate is about 60% when roughing the blisk, so the performance of the roughing tool has a significant impact on the machining efficiency of the blisk. The traditional overall blisk slotting rough machining process mainly uses a ball-end milling cutter to cut the groove shape or use a slotting tool for plunge milling. Large, the tool is easy to break, and the tool has to be replaced, which not only affects the processing efficiency of the blisk but also increases the manufacturing cost. Using a disc milling cutter to r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/08B23C5/22B23C5/24
CPCB23C5/08B23C5/2239B23C5/2475B23C2210/165B23C5/24
Inventor 程耀楠刘洋陈天启杨金龙
Owner HARBIN UNIV OF SCI & TECH
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