Ceramic core accurate positioning device for complex hollow turbine blade

Abstract

The invention provides a ceramic core accurate positioning device for a complex hollow turbine blade, and relates to the technical field of turbine machining, the ceramic core accurate positioning device comprises a base, a rotating support is rotatably arranged in the middle of the top of the base through a tapered roller bearing, an inner ratchet gear A is fixedly arranged at the outer end of a rotating shaft at the bottom of the rotating support, and a circular groove is formed in the bottom of the base; according to the centering device provided by the embodiment of the invention, an accurate and stable fixing function is provided, firstly, the base is arranged at the bottom of a processing machine tool, the lead screw is rotated to drive the nut part to descend through thread transmission, a trapezoidal block is used for pushing a trapezoidal groove to push out an inner clamping part, and then the inner clamping part is clamped in the trapezoidal groove; the turbine is fixed from the inside through the inner clamping piece; the positioning device is simple in structure and convenient to use, the knob structure is firstly used for manual tightening, the mounting stability is improved, and the problem that an existing positioning device mainly conducts positioning through cooperation of a tool and a clamp and does not have the structure function of automatically adapting to and fixing according to the type of a turbine is solved.

Description

technical field [0001] The invention relates to the technical field of turbine processing, in particular to a precise positioning device for ceramic cores for complex hollow turbine blades. Background technique [0002] A turbine engine is a form of engine that uses rotating parts to extract kinetic energy from the fluid passing through it. It is often used as an engine for aircraft and large ships or vehicles. Some turbine engines themselves have multiple sets of fan blades, and some are used for self- The fluid draws power, partly used to push the fluid, and in order to ensure the balance of use, the turbine will be made as a centrally symmetrical structure. [0003] However, the current positioning device mainly performs positioning through the cooperation of tooling and fixtures, and does not have the structural function of automatically adapting and fixing according to the model of the turbine, which is not conducive to positioning the turbine, and does not have an auto...

AI Technical Summary

Problems solved by technology

[0003] However, the current positioning device is mainly positioned through the cooperation of tooling and fixtures. It does not have the structural function of automatically adapting to the fixed structure according to the model of the turbine, which is not conducive to positioning the turbine, and does not have an automatic reversing structure that can adjust the angle.

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