Machining tool suitable for shaft workpiece

Abstract

The invention discloses a machining tool suitable for a shaft workpiece, and belongs to the field of machining tools. The machining tool comprises a plurality of adjusting bolts and a shaft sleeve used for being installed outside the to-be-machined shaft workpiece in a sleeving manner; the inner diameter of the shaft sleeve is larger than the outer diameter of the to-be-machined shaft workpiece, flange structures are arranged at the two ends of the shaft sleeve, and screw holes matched with the adjusting bolts are formed in the circumferential wall of each flange structure in the circumferential direction; the adjusting bolts are inserted into the shaft sleeve through the screw holes, and the thread length of the adjusting bolts is larger than the wall thickness of the flange structures; and during machining, the shaft sleeve is fixedly installed on the outer side of the to-be-machined shaft workpiece through the multiple adjusting bolts, a center support is arranged outside the shaft sleeve in a sleeving manner, the distance between the two flange structures is larger than the length of the center support, and one end, abutting against the to-be-machined shaft workpiece, of each adjusting bolt is of a spherical surface structure. The machining tool can be used for guaranteeing the coaxiality of the outer circle of the machined workpiece and machined inner holes; and due to the fact the center support is prevented from being directly acting on the outer circle of the workpiece, the machining tool can be used for protecting the surface of the outer circle of the workpiece during machining.

Description

technical field [0001] The invention belongs to the field of processing tooling, in particular to a processing tool suitable for shaft workpieces. Background technique [0002] Since the machining of the inner hole of the shaft workpiece is more difficult than the outer circle, the inner hole of the workpiece is generally processed first to ensure the straightness of the inner hole. After the inner hole is processed in place, the outer circle of the workpiece is processed. Before machining the outer circle of the workpiece, the two ends of the workpiece need to be positioned and installed on the machine tool through the thimble of the machine tool, and corrected through the processed inner hole of the workpiece, so that the center line of the inner hole coincides with the spindle of the lathe. For some longer or heavier shaft workpieces, it is necessary to use the center frame of the lathe to support the middle part of the workpiece. However, due to the poor surface quality...

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Problems solved by technology

[0003] In order to solve the problem that the coaxiality between the outer circle and the inner hole of the workpiece cannot be guaranteed due to the poor surface quality of the outer circle of the shaft workpiece before machining, the embodiment of the present invention provides a processing tool suitable for shaft workpieces

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