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Method of making barrel-shaped worm-like tool

A manufacturing method and thread-like technology, applied in the control of workpiece feed movement, manufacturing tools, gear tooth manufacturing tools, etc., can solve the problems of grinding wheel sharpness reduction, grinding wheel clogging, wear, etc., to achieve processing load and partial wear , The effect of high-precision gear processing

Active Publication Date: 2015-02-25
MITSUBISHI HEAVY IND MACHINE TOOL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] As the grinding process is performed, the grinding wheel will clog and wear, and the sharpness of the grinding wheel will decrease

Method used

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  • Method of making barrel-shaped worm-like tool
  • Method of making barrel-shaped worm-like tool
  • Method of making barrel-shaped worm-like tool

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no. 1 approach

[0034] refer to Figure 1 ~ Figure 3 , the method of manufacturing the barrel-shaped screw-shaped tool of the first embodiment will be described. In this embodiment, a case where it is applied to a dressing device including a dressing gear (dressing tool) will be described.

[0035] Such as figure 1 As shown, the internal gear grinder 1 includes a bed 2 , a column 3 , a saddle 4 , a swivel head 5 , and a grinding wheel head 6 . The column 3 is supported on the bed 2 so as to be movable in the horizontal X-axis direction. The X-axis direction is a moving direction for adjusting the distance between the grinding wheel rotation axis B1 and the workpiece rotation axis C1 , and is along the front-rear direction of the internal gear grinding machine 1 . The saddle 4 is attached to the column 3 and supported so as to be able to move up and down along the vertical Z-axis direction perpendicular to the X-axis direction. The swivel head 5 is attached to the saddle 4 and is supporte...

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Abstract

Provided is a method of making a barrel-shaped worm-like tool whereby a barrel-shaped worm-like tool capable of efficiently performing grinding without unequal wear can easily be made. The aforementioned method comprises making the barrel-shaped worm-like tool (12) by using a dressing gear (11) to dress the barrel-shapedworm-like tool (12), which is used for machining an internal gear and has a diameter that gradually increases from the ends (12b, 12c) to the center (12a) in the axial direction. On the basis of data wherein the number of teeth is less than that of the internal gear to be machined, the dressing gear (11) and the barrel-shaped worm-like tool (12) are engaged with each other at the same axial intersection angle as during gear-machining performed by the barrel-shaped worm-like tool (12).

Description

technical field [0001] The present invention relates to a method of shaping or dressing a barrel-shaped threaded grinding wheel for grinding the tooth surface of an internal gear. Background technique [0002] Gears are often used in automotive transmissions and the like. In recent years, for the purpose of reducing the vibration and noise of the transmission, it is required to improve the processing accuracy of the gear. Generally, in the gear processing method, a predetermined gear raw material is cut to form a tooth profile, the cut gear is heat-treated, and then finishing (grinding) is performed to remove deformation caused by the heat treatment. processing). Conventionally, the surface of the external gear to be processed is ground by meshing the heat-treated external gear with a grinding wheel in a state where the shaft intersection angle is provided. Tools used in these grinding methods also include tools of various shapes such as external gear shapes, internal gea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B53/085B24B53/075
CPCB23F21/026B23F13/006B23F5/04B23F23/1225B24B53/075B24B53/085B24B49/18B24B53/07
Inventor 柳濑吉言越智政志
Owner MITSUBISHI HEAVY IND MACHINE TOOL CO LTD
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