Axial stretching machining equipment for thin-wall slender shaft parts and method

Abstract

The invention discloses axial stretching machining equipment for thin-wall slender shaft parts and a method. The axial stretching machining equipment comprises a base, a left hydraulic chuck is fixed to the inner side of the left supporting face of the base, the left hydraulic chuck and a right hydraulic chuck clamp the thin-wall slender shaft parts, the right hydraulic chuck is installed on a sensor connecting piece, the sensor connecting piece is connected with a hydraulic cylinder through an installation tension and compression sensor, and the hydraulic cylinder is fixed on the right supporting surface of the base; and a ball screw and a driven shaft are connected between the left supporting face and the right supporting face of the base, a motor fixing base is connected to the ball screw and the driven shaft, a disc type motor is installed on the motor fixing base, turning tools, first supporting idler wheels and second supporting idler wheels which are in contact with the thin-wall slender shaft parts are evenly distributed and installed on a rotating disc of the disc type motor, head balls of the two supporting idler wheels can rotate freely, and radial feeding is achieved through threads. The method adopts a route of pre-stretching, rough machining, pre-stretching, semi-finish machining, pre-stretching and finish machining. The cutting performance is improved, and machining deformation is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to an axial stretching processing device and method for thin-walled slender shaft parts. Background technique [0002] With the development of aero-engine materials and manufacturing technology in the direction of composite, lightweight, integrated, high-efficiency and low-cost, the weight of engine components is getting lighter and lighter. Since most of the parts are thin-walled and slender shaft parts, The parts are slender and have poor rigidity. The radial cutting force during processing can easily cause the parts to bend and deform and cause vibration, which affects the machining accuracy and roughness. On the other hand, due to the thin wall thickness and poor rigidity, the clamping force and radial cutting Under the action of force, it is easy to deform, resulting in uneven depth of knife penetration and the phenomenon of knife letting. How to better improve t...

AI Technical Summary

Problems solved by technology

[0002] With the development of aero-engine materials and manufacturing technology in the direction of composite, lightweight, integrated, high-efficiency and low-cost, the weight of engine components is getting lighter and lighter. Since most of the parts are thin-walled and slender shaft parts, The parts are slender and have poor rigidity. The radial cutting force during processing can easily cause the parts to bend and deform and cause vibration, which affects the machining accuracy and roughness. On the other hand, due to the thin wall thickness and poor rigidity, the clamping force and radial cutting Under the action of force, it is easy to deform, resulting in uneven cutting depth and the phenomenon of letting the knife

Images