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Device and method for analysis and test of high-speed grinding characteristic of rotary part

A test device and characteristic analysis technology, applied in the direction of measuring devices, analyzing materials, and adopting mechanical devices, etc., can solve the problems of thermocouple detection signal derivation and data acquisition technology that have not yet broken through, workpiece positioning and clamping difficulties, etc.

Inactive Publication Date: 2013-02-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rotary motion of the grinding wheel and workpiece makes positioning and clamping of the workpiece very difficult when using clip-on and top-mounted test pieces
The derivation and data acquisition technology of thermocouple detection signal has not yet broken through

Method used

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  • Device and method for analysis and test of high-speed grinding characteristic of rotary part
  • Device and method for analysis and test of high-speed grinding characteristic of rotary part
  • Device and method for analysis and test of high-speed grinding characteristic of rotary part

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Embodiment

[0095] The workpiece material is Ti6Al4V titanium alloy, and the grinding wheel is a vitrified bonded CBN grinding wheel with an average grain diameter of 91 μm. The grinding wheel speed is 60-120m / s. After the workpiece is cut by wire cutting, the K-type thermocouple is pressed into a thin sheet with a thickness of 80-100 μm, and is insulated with a mica sheet. The grinding process adopts dry grinding, ignoring the heat absorbed by air cooling. When the grinding wheel passes through the measuring point, the grinding temperature and grinding force can be easily measured, as shown in Table 1.

[0096] During the grinding process, control the speed ratio q=v of the grinding wheel and the workpiece s / v w =1000. In this way, for high-speed grinding, increase the grinding wheel speed v s At the same time, the workpiece speed can be increased v w . In the material removal rate Q' w =2mm 3 Under the condition of constant / mms, the workpiece speed increased in the same propo...

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Abstract

The invention relates to a device and method for analysis and test of a high-speed grinding characteristic of a rotary part. The device mainly comprises a high-speed grinding wheel spindle system, a workpiece spindle system, a force measurement device for testing cylindrical grinding force, a cylindrical grinding workpiece and a temperature test device of the cylindrical grinding workpiece, and the device is used for analyzing and researching grinding force, grinding heat, a computing method of a coupling effect and a software system. Simultaneously, the grinding force and the grinding heat in a high-speed grinding process of the rotary part are collected so as to discriminate effect of mechanical energy and heat energy in the high-speed grinding process on workpiece surface quality and grinding wheel wear mechanism, and testing accuracy and efficiency of the grinding force of the rotary part are improved greatly. By means of a reverse heat flux calculation method and an algorithm, heat flux entering the workpiece, the grinding wheel and the like is obtained, effect of a high-speed grinding process on the workpiece surface quality and the grinding wheel wear mechanism is disclosed, grinding process parameters and the like are optimized further, high-speed grinding characteristics of different workpiece materials can be disclosed, and further optimization design of the high-speed grinding process and main configuration of the process is performed.

Description

technical field [0001] The invention relates to a sensing device for accurate testing of grinding force and grinding heat in the high-speed grinding process of rotary parts and a testing method using the device, belonging to the technical field of online testing of grinding production process or high-speed grinding test . Background technique [0002] In the fields of automobile, bearing and aerospace vehicle manufacturing, high-speed and high-efficiency grinding has greatly improved the efficiency of grinding production, and at the same time can take into account machining accuracy and production costs. In order to understand the mechanism of grinding process more deeply, monitor the grinding process more timely and accurately, and effectively improve the grinding quality and grinding efficiency, it is urgent to realize the simultaneous online measurement of grinding temperature and grinding force. [0003] Surface grinding has realized simultaneous online measurement of g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/06
Inventor 李蓓智倪嘉铭庞静珠杨建国吴重军
Owner DONGHUA UNIV
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