Tailstock tip device capable of adjusting machining accuracy

Abstract

The invention discloses a tailstock tip device capable of adjusting the machining accuracy. The device moves in the length direction of the device under the effect of a driving mechanism and is pushed on a center hole of one end of a circular-shaft workpiece, and the other end of the circular-shaft workpiece is clamped by a three-claw chuck. The three-claw chuck can rotate and drive the circular-shaft workpiece to rotate. The device comprises a base, a supporting block, a tail seat sleeve, a main shaft and a tip. The supporting block is arranged on the base, the tail seat sleeve is connected to the supporting block, and the main shaft is arranged in the tail seat sleeve and can rotate relative to the tail seat sleeve. The tip is fixedly arranged at the end of the main shaft and located on the outer portion of the tail seat sleeve, and an axial adjusting mechanism and a radial adjusting mechanism which are used for adjusting the tip position accuracy are arranged between the supporting bock and the base. According to the tailstock tip device, the left-right position accuracy and the front-rear position accuracy of the tip can be adjusted.

Description

technical field [0001] The invention relates to the technical field of machine tool processing, in particular to a tailstock top device with adjustable processing accuracy. Background technique [0002] The tailstock is one of the important parts on the lathe. It plays a key role on the machine tool. The tailstock body is installed on the guide rail on the machine tool. The sleeve on the tailstock is used to install the top. To the positioning function, to support the right end of the longer workpiece, it can limit the degree of freedom of the machined parts together with the spindle, and can center the workpiece, so the precision of the top is very high. [0003] In the process of part processing, the axis line of the tailstock and the axis line of the lathe spindle should maintain a high coaxiality and straightness. In the process of workpiece processing, the front and rear tops are generally used to support the workpiece to position the rotation of the workpiece. Center,...

AI Technical Summary

Problems solved by technology

[0004] In CNC machine tools, especially those with the tailstock top mechanism, we often encounter such a situation: within a period of time, the top precision of the tailstock is good, but after a period of use, due to various reasons , the precision of the tip of the tailstock has changed. According to related technologies, the position of the tip cannot be adjusted at this time, resulting in low machining accuracy of the parts, and even the phenomenon of unqualified molded parts, resulting in high processing costs.

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