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Contour method for machining elliptic cam

A technology of elliptical cam and profiling processing, which is applied in the direction of abrasive belt grinder, etc., to achieve the effects of good quality stability, improved product qualification rate, and simple method

Inactive Publication Date: 2009-01-07
GUIZHOU QUNJIAN PRECISION MACHINERY
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  • Abstract
  • Description
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Problems solved by technology

[0003] The object of the present invention is to: aim at the problems existing in the current elliptical cam processing method, propose a kind of method of processing elliptical cam on hob relief grinder machine tool by profiling method, to solve the deficiencies in the prior art

Method used

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  • Contour method for machining elliptic cam
  • Contour method for machining elliptic cam

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Embodiment Construction

[0010] Embodiment of the present invention: processed elliptical cam such as figure 1 As shown, its shape is an ellipse, the major axis L1=37.54, the tolerance requirement is +0.008 for the upper deviation, and -0.008 for the lower deviation; the minor axis L2=36.46, the tolerance requirement is +0.005 for the upper deviation, and -0.008 for the lower deviation. The method is as follows:

[0011] First, make a relief grinding oval cam. According to the shape of the processed elliptical cam, the relief grinding elliptical cam is designed such as figure 2 As shown, its shape is also an ellipse, the major axis L3=51.96, the tolerance requirement is the upper deviation +0.005, the lower deviation -0.005; the minor axis L4=50.88, the tolerance requirement is the upper deviation +0.005, the lower deviation -0.005; Made of wear-resistant materials, it is not deformed and wear-resistant, and has a long service life.

[0012] Secondly, install the produced elliptical cam on the cam...

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Abstract

A technology for machining the elliptical cam on hobbing-relieving-grinding machine-tool by copying method includes such steps as making a copying elliptical cam, installing it onto the mainshaft of said machine-tool, regulating the machine-tool for synchronous rotation between mainshaft and copying elliptical cam, clamping the blank of the elliptical cam to be machined onto said machine-tool, and turning on the machine-tool to machine said blank until it become a finished product.

Description

Technical field: [0001] The invention relates to a machining method, in particular to a machining method of an elliptical cam. Background technique: [0002] The harmonic transmission uses the controllable elastic deformation of the flexible element to transmit motion and power, and the controllable elastic deformation of the flexible element is realized through the action of the elliptical cam. Therefore, the elliptical cam plays a very important role in the harmonic drive. At the same time, the higher the precision of the harmonic drive, the higher the requirements for the manufacturing precision of the elliptical cam. At present, the processing methods of the elliptical cam include: (1) lathe processing on a general lathe; (2) milling processing on a general milling machine; (3) processing on a cam grinding machine. With the rapid development of harmonic reducers, the precision requirements for harmonic reducers are getting higher and higher. When lathes and milling mac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B19/12
Inventor 况安勇
Owner GUIZHOU QUNJIAN PRECISION MACHINERY
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