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Method for finishing high-precision bearing-shaping abrasion wheel and feeding device thereof

A feeding device and forming grinding wheel technology, which is applied in the field of bearing precision machining, can solve the problems of low machining accuracy, achieve high cost performance, avoid step precision requirements, and reduce manufacturing requirements.

Inactive Publication Date: 2009-08-12
NINGBO ANJIESEN PRECISION MACHINE MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for dressing high-precision bearing forming grinding wheel and its feeding device to solve the problem of low machining accuracy in the prior art defect

Method used

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  • Method for finishing high-precision bearing-shaping abrasion wheel and feeding device thereof
  • Method for finishing high-precision bearing-shaping abrasion wheel and feeding device thereof
  • Method for finishing high-precision bearing-shaping abrasion wheel and feeding device thereof

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Embodiment 1

[0020] A feeding device for dressing high-precision bearing forming grinding wheels, which consists of three parts: gold pen 2, axial feeding device 5, tangential feeding device 4, and radial feeding device 6, and three independent servo motors 3 The above-mentioned three feeding devices are driven by the ball screw drive to drive the gold fountain pen 2 to move, and a programmable logic controller (PLC) is used to control the feeding motion of the above-mentioned three feeding devices.

[0021] A method for dressing a high-precision bearing forming grinding wheel. The radial feed device 6 drives the gold pen 2 to move along the Y-axis in the radial direction of the grinding wheel, so as to realize the feeding of the gold pen 2 for a dressing amount and the compensation feeding of the wear amount. Through the tangential feeding device 4, the gold fountain pen 2 is directly driven along the tangential Z axis of the grinding wheel to indirectly complete its displacement relative ...

Embodiment 2

[0038]As described in Example 1, and the above method and device are used in the special grinding machine for the logarithmic curve inner raceway of the outer ring of the tapered roller bearing, the required logarithmic curve grinding wheel forming surface increment is 20 μm, and the logarithmic curve line profile The tolerance is 0.2 μm. The parameters of the selected grinding wheel are, diameter (D s ) 30mm, width (B) 20mm. Carry out adopting the accuracy analysis and benefit that the present invention can obtain below:

[0039] If according to the contour accuracy, the interpolation increment (ΔY) of the diamond pen on the Y axis is required to be 0.1 μm, then calculated by the formula (4): ΔZ=0.0547mm.

[0040] Obviously, according to the traditional grinding wheel dressing method, it is very expensive to require the Y-axis to directly feed 0.1 μm. Not only is the mechanism complex and huge, but it is also very difficult or even impossible to achieve stability and reliab...

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Abstract

The invention relates to a feeding device of a forming grinding wheel for finishing high precision bearing which comprises three feeding devices for driving a pen-typed diamond to move in tangential, axial and radial directions. The three feeding devices are respectively driven by an independent servo motor through a transmission system and controlled by PLC. The feeding device adopts a method that the radial feeding device (4) indirectly finishes the radial direction motion of the grinding wheel along the tangential motion of the grinding wheel, avoids the limitation on the smallest step of a uniaxial coordinate and very high step precision requirement during the finishing of the grinding wheel and improves the finishing precision of the grinding wheel and the grinding bearing contour precision. With simple structure, the device of the invention can greatly lower the manufacturing requirement of the grinding wheel feeding device and has greatly high performance price ratio. Based on the method of the invention, developed tapered roller bearing log curve raceway grinder can greatly improve the processing precision and the stability of bearing raceway log curves, solve the industrial technical hard problem of bearing grinders and fill the gap of the field.

Description

technical field [0001] The invention belongs to the technical field of precision machining of bearings, in particular to a method for dressing a bearing forming grinding wheel and a feeding device thereof. Background technique [0002] In recent years, with the rapid development of my country's automobile, railway speed-up, rail transit, etc., the demand and performance requirements for key and general components such as bearings are also getting higher and higher. However, due to the lack of advanced bearing manufacturing technology and special equipment with independent intellectual property rights in our country, the produced bearings still cannot meet the international high-precision or high-performance bearing standards. Most of the bearing manufacturing companies supporting railway locomotives are Sino-foreign joint ventures. For example, Nankou SKF Railway Bearing Company is a Sino-Swiss (Swiss SKF) joint venture, Yinchuan Fuanjie Bearing Company is a Sino-German (Ger...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B53/12
Inventor 吉启维李蓓智罗坚朱江良于景刚
Owner NINGBO ANJIESEN PRECISION MACHINE MFG
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