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Turbine blade digital control abrasive belt grinding machine and operating method thereof

A technology for steam turbine blades and abrasive belt grinders, which is used in abrasive belt grinders, grinders, and parts of grinding machine tools.

Inactive Publication Date: 2008-08-06
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the machine tool equipment used for grinding the curved surface of steam turbine blades has not been reported yet.
The application number published by the State Intellectual Property Office is 03279079.1, and the patented technology named "Steam Turbine Blade Longitudinal Tree Type Blade Root Strong Grinding Machine" is only used for grinding the working plane of the blade root, which has not been completed in the prior art. Equipment for surface grinding of steam turbine blades

Method used

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  • Turbine blade digital control abrasive belt grinding machine and operating method thereof
  • Turbine blade digital control abrasive belt grinding machine and operating method thereof
  • Turbine blade digital control abrasive belt grinding machine and operating method thereof

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Embodiment Construction

[0022] The invention includes a machine tool bed 1, a head frame 5, a tailstock 13, a large carriage 2, a small carriage 3, a rotary table 4, an abrasive belt grinding head 9, an open numerical control system and a motor for respectively driving five control axes of the machine tool , the steam turbine blade 8 is installed between the machine tool head frame 5 and the top of the tailstock 13, and is driven by the C-axis servo motor 6 to realize the rotational movement of the blade 8; the Z-axis servo motor 14 drives the large carriage 2, and thereby drives the abrasive belt The grinding head 9 performs longitudinal grinding and feeding motion of the blade 8 along the guide rail of the machine tool; the X-axis servo motor 11 drives the small carriage 3, and thus drives the abrasive belt grinding head 9 along the dovetail guide of the large carriage 2 to make the radial direction of the blade 8 Feeding movement; the B-axis servo motor 12 drives the turntable 4 to rotate around it...

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Abstract

The invention discloses a turbine blade numerical control belt grinder and a control method thereof, which relates to a grinding and processing device of a turbine blade and the control method thereof, and is characterized in that: a belt wheelhead and an open numerical control system is provided on the basis of the basic parts of the original machine tool; the belt wheelhead is provided with a grinding belt tightening device and a transmission belt tightening device; a Z-axis serving motor drives a big carriage; an X-axis serving motor drives a small carriage; a C-axis drives a head frame; a B-axis drives a turret; a D-axis is a belt wheelhead motor; and each motor is connected with the control system; the control system is provided with a memory, a control circuit and a blade grinding and a controlling software module. During the operation, the original parameter is firstly input; then a blade grinding and controlling software module is automatically setting up by the system to generate a processing program, make error analysis and machining simulation; and finally a blade actual grinding processing is carried out. The turbine blade numerical control belt grinder is a five-axis and four-linkage numerical control belt grinder, and has the advantages of high efficiency, good accuracy, simple structure, low cost, and convenient control.

Description

Technical field: [0001] The invention relates to processing equipment for steam turbine blades, in particular to a processing machine tool and a control method thereof for clamping the blade on a machine tool and using an abrasive belt to complete the grinding of the curved surface of the blade. Background technique: [0002] The steam turbine blade is complex in shape and requires high machining accuracy. It is an important part in the steam turbine engine unit and one of the most difficult parts in the steam turbine. At present, there are machine tools for steam turbine blade milling in the domestic market, including general 5-axis machining center machine tools, and special steam turbine blade machining center machine tools numbered 0501009 published by the China Machinery Industry Science and Technology Award Bulletin. However, the machine tool equipment used for grinding the curved surface of steam turbine blades has not been reported yet. The application number publis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B21/16B24B21/18B24B41/04B24B49/10
Inventor 王隆太钱文明季源源
Owner YANGZHOU UNIV
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