Broaching machining technology for blade tenon

Abstract

The invention relates to a broaching machining technology for a blade tenon. The broaching machining technology comprises the following steps: firstly, a blade workpiece to be machined is installed in a profiling clamp to be clamped; secondly, a first supporting block of an auxiliary supporting device abuts against the end face of the blade tenon, and a second supporting block is far away from the blade tenon; thirdly, a side face broaching tool acts, and the tenon side face section of the blade workpiece is subjected to broaching machining; fourthly, a rotary base drives the blade workpiece to rotate, the first supporting block is far away from the end face area of the blade tenon, and the second supporting block abuts against the side face of the blade tenon; fifthly, an end face broaching tool acts, and broaching machining is conducted on the tenon end face section and / or a bottom face groove of the blade workpiece; and sixthly, the clamping state of the blade workpiece is relieved through the profiling clamp, the machined blade workpiece is taken down from the profiling clamp, and discharging is completed. With adoption of the broaching mode, the side face section, the end face section and the bottom surface groove of the blade tenon are broached, so that the material consumption is reduced, and the efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of blade tenon processing, in particular to a broaching process of blade tenon. Background technique [0002] Turbine blades are important components of aero-engines. The blades of the worm gear and the worm gear disc are usually connected by the tenon of the blade and the tenon and groove on the outer periphery of the worm gear disc. The machining accuracy of the tenon of the blade directly affects the performance of the product. Such as figure 1 As shown, the processing of the blade tenon 12 generally includes the processing of the front and rear tenon side sections 13, the left and right sides of the tenon end surface section 14 and the bottom groove 15 of the tenon. Correspondingly, the blade tenon has two opposite sides 16, two Two opposite end surfaces 17 and a bottom surface 18 on the side away from the blade body 11. At present, five-axis CNC machining centers are generally used for blade tenon ma...

AI Technical Summary

Problems solved by technology

[0004] However, the clamping method in the above-mentioned patent needs to remove all the pouring parts after the tenon of the blade is processed. The processing procedure is cumbersome, resulting in low production efficiency, and also causes serious waste of materials and high production costs.

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