Datum transformation fixture and datum transformation method for guide blades

A technology of guide vane and reference conversion, which is applied to rotors, kitchen utensils, heat exchange equipment, etc., can solve problems such as scrapping and out-of-tolerance, and achieve the effect of ensuring pouring accuracy and improving processing pass rate
CN105344975AActive Publication Date: 2016-02-24SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
Publication Date
2016-02-24

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Abstract

The invention discloses a datum transformation fixture and a datum transformation method for guide blades, and belongs to the technical field of aero-engine blade manufacturing. The fixture comprises a bottom plate, wherein square box location blocks, a square box press plate mechanism and a square box compaction block mechanism are arranged on the upper part of the bottom plate, and a square box is installed on the square box location blocks; blade location blocks, movable blade location pins, a blade press plate mechanism and a blade compaction block mechanism are further arranged on the upper part of the bottom plate, and the blade location blocks and the movable blade location pins are corresponding to guide blade blank location points; and a left baffle and a right baffle are arranged at blade installation ports at the two sides of the square box. The method comprises the following steps: rotating a second movable handle, and enabling the first location pin and the second location pin to move towards a centre; installing the guide blades in the square box, and enabling an exhaust side of each guide blade to be downward and enabling an intake side of each guide blade to be upward; installing the square box and the guide blades, compacting the square box, locating the guide blades, compacting the guide blades, and installing upper baffles of the left baffle and the right baffle onto the intake sides of the guide blades; and pouring a low-melting-point alloy, and detaching parts.
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Description

technical field

[0001] The invention belongs to the technical field of manufacturing aeroengine blades, and in particular relates to a guide vane reference conversion fixture and a reference conversion method. Background technique

[0002] In the manufacturing process of aero-engine blades, the blade mounting plate and the blade body are generally guaranteed by free casting. With the development of guide vane design technology, the structure of multiple sets of guide vanes has become the mainstream of design. In order to ensure the exhaust area of ​​the blades, the design positioning point is often set on the exhaust edge R. Before the subsequent machining process starts, the airfoil positioning points must first be transferred to other machining surfaces.

[0003] In the prior art, the air exhaust edge of the blade body and the inner runner surfaces of the upper and lower mounting plates are simultaneously positioned, and rigid fixtures are used to directly contact the pos...

Claims

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