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Tooling and technology for group machining of multi-arc surfaces of steam turbine blades

A steam turbine blade and group processing technology, applied in metal processing equipment, metal processing machinery parts, positioning devices, etc., can solve the problems of easy wear of fixtures, poor roughness, low efficiency, etc., and achieve low tool cost and good consistency , Reduce the effect of clamping error

Active Publication Date: 2016-02-24
常州市三维技术成套设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the disadvantages of low efficiency, large vibration during processing, poor roughness, easy wear of the fixture, and the need for regular repair of the fixture
It also needs to be equipped with special tools, and can only be produced by single-piece clamping. After one part is finished, another part is clamped for processing

Method used

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  • Tooling and technology for group machining of multi-arc surfaces of steam turbine blades
  • Tooling and technology for group machining of multi-arc surfaces of steam turbine blades
  • Tooling and technology for group machining of multi-arc surfaces of steam turbine blades

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Embodiment Construction

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] refer to Figure 1 to Figure 3 As shown, the multi-arc surface of steam turbine blades is a group processing tooling, and the circular arc processing installation disc 1 is set on the rotary table of the vertical lathe, and the surface is provided with several blade clamping parts 2, and several blade clamping parts 2 It is arranged on the same circumference and is concentric with the arc processing and installation disk 1 and the turntable; a radial positioning block 6 is arranged between the blade clamping part 2 and the outer circle side of the arc processing and installation disk 1; the blade clamp The mounting part 2 is composed of a positioning block 3, a pressing block 5 and a fixed block 4 connected in sequence, and the pressing block 5 is arranged on the top of the positioning block 3 and the fixing block 4; the fixin...

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Abstract

The invention discloses a group machining tooling and a group machining process for steam turbine blade multi-pass arc surfaces. The tooling consists of an arc machining and installation disc and a blade clamping part. The steam turbine blade multi-pass arc surfaces are machined and formed through group clamping of blades by using an ordinary vertical lathe for turning. The group machining tooling and the group machining process for steam turbine blade multi-pass arc surfaces have the advantages that the group machining is realized by using ordinary equipment and the tooling with a simple structure, the production efficiency is increased and the production cost is decreased.

Description

technical field [0001] The invention relates to the field of steam turbine blades, in particular to a group processing tool and process for multi-arc surfaces of steam turbine blades. Background technique [0002] With the development of steam turbine blade technology, due to the design requirements of the moving blade, the blade root is required to be processed into a circular arc according to the diameter of the impeller. The assembly of blades at the same level is centered on the rotor of the unit, and is radially and precisely matched. The arc surface of the blade root is used as the assembly surface with the impeller, and the machining accuracy is very high. For T-shaped blade root arc blades, the "rotary fixture" is usually installed on an ordinary horizontal milling machine, that is, through the transmission of the worm gear and worm, and the arc track on the fixture, the workpiece moves in an arc relative to the tool to realize the circular shape of the blade root. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00B23B5/26
Inventor 刘明刘小忠
Owner 常州市三维技术成套设备有限公司
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