Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Quick clamping and alignment method and fixture for milling arc segments of stationary blade grid

A technology of milling processing and static blade cascade, which is applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc. Easy operation, wide application range, convenient operation effect

Active Publication Date: 2014-10-08
DONGFANG ELECTRIC WUHAN NUCLEAR EQUIP
View PDF10 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the many specifications of the arc section of the static cascade, and its structural characteristics of the arc section, there are major problems in actual processing: first, the positioning accuracy of the arc surface of the arc section of the static cascade is not easy to guarantee; second, the conventional The generality of the clamping and aligning device is not high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quick clamping and alignment method and fixture for milling arc segments of stationary blade grid
  • Quick clamping and alignment method and fixture for milling arc segments of stationary blade grid
  • Quick clamping and alignment method and fixture for milling arc segments of stationary blade grid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] Based on the idea of ​​fast clamping and aligning for the milling process of the arc section of the stationary blade cascade described above, the fast clamping and aligning fixture for the milling process of the arc section of the stationary blade cascade in this embodiment includes a plate body 1 (a square plate with a size of 1200mm×700mm×50mm ), 3 spacers A2 (a cylinder with a diameter of 60mm and a height of 50mm) and 3 height-adjustable spacers B3 (adjustable around 50mm in height) with fixed and consistent heights; The positioning mechanism 4 for positioning the grid arc segment 9 in the radial direction f and the side end surface c, the radial tightening mechanism 5 for radially tightening the stationary blade cascade arc segment 9, and the press-fitting mechanism for pressing and installing the stationary blade cascade arc segment 9 .

[0043] In this embodiment, the positioning mechanism 4 is mainly used for positioning the radial direction f and the side end s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a quick clamping and alignment method and a fixture for milling arc segments of a stationary blade grid and belongs to the technical field of machining of steam turbines. According to the quick clamping and alignment method and the fixture for milling the arc segments of the stationary blade grid, the principle that three points form a plane is utilized, and quick clamping and alignment of the arc segments of the stationary blade grid are achieved through three-point locating and three-point auxiliary supporting; in the application process, adjustment is convenient, operation is easy, the application range is large, the defects that the arc segments of the stationary blade grid have many specifications, the locating accuracy of arc surfaces of the arc segments of the stationary blade grid in the actual machining process is hard to guarantee due to the structure of the arc segments, and a conventional clamping and alignment device is low in universality are overcome, and the alignment efficiency and accuracy are improved; meanwhile, in the method, a modular design thought is adopted for the corresponding clamping and alignment fixture, so that the universality of the device is greatly improved, and operation is convenient, fast and flexible.

Description

technical field [0001] The invention relates to a fast clamping and aligning method for milling the arc section of a stationary blade cascade, and belongs to the technical field of steam turbine processing. Background technique [0002] The arc section of the static cascade is assembled and welded by multiple cascades, and the arc sections of the static cascade are finally spliced ​​into a complete ring of static cascades. In order to ensure the assembly and positioning accuracy of the arc section of the stationary cascade, after the welding of the arc section of the stationary cascade is completed, the steam inlet side and the steam outlet side of the inner and outer shrouds of the arc section of the stationary cascade must be milled respectively. Due to the many specifications of the arc section of the static cascade, and its structural characteristics of the arc section, there are major problems in actual processing: first, the positioning accuracy of the arc surface of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23Q3/00
CPCB23Q3/063
Inventor 孙挺巩丽王世涌肖波彭刚
Owner DONGFANG ELECTRIC WUHAN NUCLEAR EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com