Fixture device for tenon tooth blade milling blade root

Abstract

The invention provides a fixture device for a tenon tooth blade milling blade root. The fixture device is high in structural universality, low in manufacturing cost and convenient to operate, and comprises a positioning bottom plate; an end positioning block is installed at the longitudinal rear end of the positioning bottom plate; an end abutting mechanism is installed in the position, corresponding to the end positioning block, of the positioning bottom plate; a lateral positioning block is installed on one transversal side of the positioning bottom plate; a lateral abutting mechanism is installed in the position, corresponding the lateral positioning block, of the positioning bottom plate; movable pressing plate mechanisms are installed on the parts, at the position of the end abutting mechanism, the position of the lateral abutting mechanism and the position of the lateral positioning block, of the positioning bottom plate; the end abutting mechanism and the lateral abutting mechanism both comprise supporting seats movably connected with the positioning bottom plate; the supporting seats are provided with lateral threaded holes, and transverse screws with pressing blocks penetrate through the lateral threaded holes; and each pressing plate mechanism comprises a stud, a movable pressing plate and a nut, wherein the movable pressing plate is installed on the stud in a sleeving mode, and the upper end of the movable pressing plate is locked through the nut.

Description

technical field [0001] The invention relates to the technical field of processing steam turbine blade mortise-tooth blade roots, in particular to a fixture device for milling mortise-tooth blade roots. Background technique [0002] The steam turbine blade is the core component of the power station generator set. It rotates at high speed under the action of high temperature and high pressure steam in the working state; the blade root is the part connecting the blade and the rotor. According to the different working environment and functions, it is mainly divided into T-shaped, mushroom-shaped, Fork-shaped and fir-tree-shaped blade roots, and fir-tree-shaped tenon-toothed blade root blades, as an important part of steam turbine blades, are widely used in the thermal power industry. [0003] Due to the variety of fir tree-shaped mortise-toothed blades of steam turbines and the characteristics of small batches, the size of the square box will also change for each type of steam t...

AI Technical Summary

Problems solved by technology

[0003] Due to the variety of fir tree-shaped mortise-toothed blades of steam turbines and the characteristics of small batches, the size of the square box will also change for each type of steam turbine blade with different root size and structure, so it is necessary to design different milling blade root fixtures and fixtures No versatility, serious cost waste

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