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Skiving cutter feeding method realizing singe-edge cutter relieving radical cutter feeding

A tool-feeding, unilateral technology, applied in the direction of turning equipment, turning equipment, manufacturing tools, etc., to achieve the effect of ensuring machining accuracy, improving tool life, and improving wear

Active Publication Date: 2017-01-04
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gleason R&D personnel researched and improved the gear cutting process, and proposed a gear cutting method (US9144854B2) in which the tool feeds radially along the tooth profile of the workpiece (US9144854B2), which improved the service life of the gear cutting tool, but found that the method There are still deficiencies and needs for improvement

Method used

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  • Skiving cutter feeding method realizing singe-edge cutter relieving radical cutter feeding
  • Skiving cutter feeding method realizing singe-edge cutter relieving radical cutter feeding
  • Skiving cutter feeding method realizing singe-edge cutter relieving radical cutter feeding

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Embodiment

[0031] According to the method mentioned above, the straight-tooth skiving cutter is designed, and the skiving knife-feeding method of unilaterally allowing the knife to feed radially is adopted. Select an internal helical gear as a specific example of processing, the workpiece parameters are shown in Table 1:

[0032] Table 1

[0033] Number of teeth z 1 Normal modulus m n Normal pressure angle α n tooth width B Helix angle β Rotation 80 1 20° 20 20° left-handed

[0034] The basic parameters of the gear cutter are shown in Table 2:

[0035] Table 2

[0036] Number of teeth z 2 Modulus m Top edge relief angle α Top edge rake angleγ Feed times 50 1 9° 5° 5

[0037] Workpiece circumferential compensation angle θ i and let-off angle ψ i See Table 3:

[0038] table 3

[0039] Number of feed knives 1 2 3 4 5 Cutting depth(mm) 0.45 0.90 1.35 1.80 2.25 θ i (°) 0.120 0.101 0.177 ...

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Abstract

The invention discloses a skiving cutter feeding method realizing singe-edge cutter relieving radical cutter feeding. The cutter feeding method belongs to the improvement on a tooth profile-following radical cutter feeding method. In several former times of cutter feeding of a cutter, when the cutter completes radical cutter feeding once, a workpiece does not rotate for a peripheral compensation rotating angle theta i and a cutter avoiding angle phi i; during the cutter feeding of the cutter in a next time, a cutting-out side cutter edge of the cutter is staggered for a gap with a processed tooth surface of a workpiece; the extrusion friction between the cutting-out side cutting edge and the tooth surface of the workpiece is avoided; the last one or several last radical cutter feeding of the cutter is for finish machining; single-edge cutter relieving by the workpiece is avoided, so that the processing precision of the tooth surface of the workpiece is ensured. When the multi-time radical cutter feeding is needed for gear mechining, the skiving cutter feeding method realizing single-edge cutter relieving radical cutter feeding can prolong the service life of the cutter through being compared with the tooth profile-following radical cutter feeding method.

Description

technical field [0001] The invention belongs to the field of cylindrical gear processing technology, and relates to a gear cutting method in which the tool is radially fed on one side. [0002] technical background [0003] Internal gears are often used in transmission devices of automobiles, machine tools, instruments, etc., such as automatic transmissions, wheel-side reducers, and robot joint reducers. It is difficult, and the most commonly used processing method is gear shaping, but it is difficult to realize high-efficiency, high-precision, and large-scale internal gear processing. At present, the demand for the use of internal gears in the automotive industry is increasing day by day, and the efficiency and accuracy of gear shaping for internal gears can no longer meet the needs of the market. In recent years, with the advancement of machine tool numerical control technology and the research and development of high-performance tool materials and coatings, gear cutting t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q15/013B23B5/00
CPCB23B5/00B23Q15/013
Inventor 毛世民郭正
Owner XI AN JIAOTONG UNIV
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