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Device and method for measuring thermal error at working state of gear grinding machine

A technology of working status and measuring devices, applied in measuring/indicating equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of low machining accuracy of gear grinding machines and inability to measure thermal errors of gear grinding machines

Inactive Publication Date: 2015-11-18
XIAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a thermal error measuring device in the working state of the gear grinding machine, which solves the problem of low machining accuracy of the gear grinding machine caused by the inability of the existing device to measure the thermal error in the working state of the gear grinding machine

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  • Device and method for measuring thermal error at working state of gear grinding machine
  • Device and method for measuring thermal error at working state of gear grinding machine
  • Device and method for measuring thermal error at working state of gear grinding machine

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] The structure of the thermal error measuring device in the working state of a gear grinding machine of the present invention is as follows: figure 1 As shown, it includes the temperature measurement part and the displacement measurement part; the temperature measurement part includes the spindle motor, the front and rear end covers of the spindle, the feed drive motor, the turntable surface, the coolant diversion groove, the column, the bed, and the turntable arranged on the gear grinding machine The temperature sensor on the base and the main shaft base; the displacement measurement part includes the X-direction displacement sensor 2 and the Y-direction displacement sensor 3 fixed on the gear grinding machine main shaft base 6 through the bracket 1, the X-direction displacement sensor 2 and the Y-direction displacement sensor The sens...

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Abstract

The present invention discloses a device for measuring thermal errors at a working state of a gear grinding machine. The device comprises a temperature measuring part and a displacement measuring part, the temperature measuring part comprises a temperature sensor arranged on the main heating part of the gear grinding machine, the displacement measuring part comprises an X-direction displacement sensor and a Y-direction displacement sensor which are fixed on a main shaft base of the gear grinding machine through a support, the X-direction displacement sensor and the Y-direction displacement sensor contact with a detection rod, and the detection rod is fixed on a rotary table. Also disclosed is a method for measuring thermal errors by using the device. The method comprises displacement measurement, detection rod circle centre coordinate sequence calculation, system error removal, rotary table axis expression calculation and thermal error modeling. According to the device, the X-direction displacement sensor and the Y-direction displacement sensor are arranged on the gear grinding machine, and temperature sensors are arranged on main heating parts of the gear grinding machine; and by using the device for thermal error measurement, the measuring precision is high and a compensation result is excellent. The device is simple in structure, and the measuring method is easy to learn and easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of precision machine tool processing, and relates to a thermal error measurement device of a gear grinding machine in working state, and also relates to a method for measuring the thermal error of a gear grinding machine by using the above-mentioned device. Background technique [0002] In the gear grinding process, the coolant absorbs a large amount of grinding heat while cooling the workpiece, and accumulates in the T-shaped groove and diversion groove of the workbench, resulting in a significant temperature rise of the key components of the machine tool and the processing environment. This situation is called cooling liquid heating effect. The heating effect of the coolant is the main factor leading to the thermal error of the gear grinding machine. [0003] At present, the research on the thermal error of machine tools at home and abroad is mainly carried out in the non-processing state, and the influen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q17/00
CPCB23Q17/006
Inventor 高峰孟振华李艳赵柏涵李英浩
Owner XIAN UNIV OF TECH
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