Boring cutter rod error compensating device with slide block structure

Abstract

The invention discloses a boring cutter rod error compensating device with a slide block structure. The boring cutter rod error compensating device comprises a boring cutter rod and a cutter compensation servo motor, wherein the boring cutter rod is provided with an axial central hole; one end of a ball screw is connected with an output shaft of the cutter compensation servo motor; the other end of the ball screw stretches into the central hole; a screw nut assembly which can move relatively is sleeved on the ball screw; the ball screw drives the screw nut assembly to move in a straight line relatively; a connecting rod is connected with the screw nut assembly; a slide block is connected with one end of the connecting rod far away from the screw nut assembly; a straight hole slide groove is arranged on the side wall of the boring cutter rod; the slide block is arranged in the straight hole slide groove and can be driven by the connecting rod to slide in the straight hole slide groove; a ball pin is arranged in the straight hole slide groove; one end of the ball pin props against the slide block through an end part ball; and the other end of the ball pin is connected with the boring cutter on the side wall of the boring cutter rod. With the boring cutter rod error compensating device, rough and finish machining can be accomplished for one time; the abrasion of the fine boring cutter is reduced; and precise compensation to the cutter abrasion and the cylinder hole cylindrical form error is realized.

Description

technical field [0001] The invention belongs to the technical field of boring pin processing, and in particular relates to a boring bar error compensation device, which is suitable for error compensation in fine boring technology. Background technique [0002] The cylinder block is one of the key components in the engine, and its processing quality will directly affect the performance of the engine. Fine boring cylinder bore is one of the key processes in automobile engine production. In fine boring machining, the hole diameter error caused by tool wear, thermal deformation and other reasons is an important factor affecting the hole diameter error. The conventional boring method is to pull boring first and then push boring or push boring first and then pull boring. The shape of the processed cylinder hole must be waist-drum shape, so that the cylindricity of the bored hole is not high. [0003] The existing boring bar error compensation device generally adopts the inclined...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a boring tool bar error compensation device with a slider structure, which can accurately and continuously realize the micro-feeding of the fine boring tool in the alternating positive and negative directions through the slider, and solve the problem of low precision and compensation of existing compensation devices. Too small a problem

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