Vehicle lathe rough machining tool for upper rocker arm of vertical milled large-scale key part

Abstract

The invention discloses a vehicle lathe rough machining tool for an upper rocker arm of a vertical milled large-scale key part. The vehicle lathe rough machining tool comprises a tool base parallel to a vertical lathe faceplate. Tool clamping jaw clamping positions are arranged in one end of the tool base in the four directions respectively and used for allowing clamping jaws in the center of the faceplate to clamp and fix the tool base. A shaft hole positioning block is connected with the top face located at the end of the tool base. The shaft hole positioning block is further sleeved with a replaceable shaft hole positioning ring. The shaft hole positioning block and the shaft hole positioning ring are used for extending into an upper rocker arm shaft hole and supporting a first step of an inlet of the shaft hole through the shaft hole positioning ring. A height-adjustable pressing plate is further connected with the center of the top of the shaft hole positioning block through a tool pressing bolt and a nut. During usage, the pressing plate is tightly pressed on an inner cavity of the upper rocker arm shaft hole and position the shaft hole together with the shaft hole positioning block. Two height-adjustable supporting bolts and nuts are symmetrically installed on the other end top face of the tool base relative to the central axis of the other end face and used for supporting the long-arm end of the upper rocker arm. After usage, the production efficiency is remarkably improved, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to a processing tool, in particular to a rough machining tool for an upper rocker vertical lathe of a large key part of a vertical mill. Background technique [0002] At present, the roller vertical mill has different sizes from 2M to 6M, and the shape of the parts is irregular. All of them are made of ZG270-500 material, and the blank is cast as a whole. It is required that the casting blank must not have casting defects that affect the strength. Its surface must be smooth and flat, and it must be annealed before machining. Conditions" requirements. The traditional processing technology of this roller vertical mill is as follows: CNC boring and milling machine is used for processing. After rough machining, ultrasonic flaw detection is required for the plane, and coloring inspection is required for the inner hole; after finishing machining, all dimensions and magnetic particle flaw detection are required. Assembled state; moreov...

AI Technical Summary

Problems solved by technology

[0006] 1. Due to the heavy weight of the rocker arm, the fixture must have sufficient strength;

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