Method for using honeycomb grinding machine to process radial slot or small waist type slot

Abstract

The invention discloses a method for using a honeycomb grinding machine to process a radial slot or a small waist type slot and belongs to the technical field of electric machining. The method for using the honeycomb grinding machine to process the radial slot or the small waist type slot includes that placing a component to be processed on a rotary table of a ZT-033 honeycomb grinding machine, placing a press plate at the upper surface of the component, and enabling a compression bolt to pass through a through hole of the rotary table, a through hole of the component and a through hole of the press plate in sequence to connect with a compression nut; firmly connecting a first pin shaft of an electrode clamping device with a chuck of the ZT-033 honeycomb grinding machine; enabling the lateral surface of an electrode to get close to one side of the outer surface of the component, and recording the value a of the machine tool at the moment; enabling the electrode to bypass the component to be processed from the upside, enabling the lateral surface of the electrode to get close to the other side of the outer surface of the component to be processed, and recording the value b of the machine tool at the moment; moving the electrode along the Y-axis direction of the machine tool by distance h (the central position of the component), wherein the distance h is confirmed through h=(a-b) / 2-k, and in the formula, k is the electrode thickness; processing the component to be processed to form the slot.

Description

technical field [0001] The invention belongs to the technical field of electrical machining, and in particular relates to a method for machining radial grooves or small waist-shaped grooves by using a honeycomb grinder. It is mainly used in the radial groove processing of the new generation of aero-engine squirrel cages, sealing jackets, and honeycomb components in front of the disc, as well as the processing of axially small waist-shaped grooves on the large end face of the slender low-pressure turbine shaft. Background technique [0002] The slender low-pressure turbine shaft is the core key shaft installed on the rotor of the engine turbine. The structure of this part is complex, the processing space of the inner and outer surfaces is narrow, the opening of the small waist-shaped groove in the axial direction of the large end surface is poor, and the groove size accuracy and technical requirements are strict. . The level of its value directly affects the dynamic balance ...

AI Technical Summary

Problems solved by technology

The squirrel cage parts processed by the four-coordinate machining center, due to the very large radial force of the machining process and the very high rotation speed of the tool, the deformation of the processed parts is particularly serious, which cannot meet the requirements of the design conditions, and the processing efficiency is not high. Unstable quality

The parts processed by wire cutting are manually indexed. It takes a long time to process a squirrel cage bar, and manual threading is required. Each squirrel cage bar must be threaded, which is very troublesome and inconvenient to process.

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