Five-axis multi-functional thread grinding machining center

Abstract

A five-axis multi-functional thread grinding machining center belongs to the numerically controlled machine tool field. The five-axis multi-functional thread grinding machining center consists of a machine tool body, a Z-direction slide plate, a workpiece electric spindle, a X-direction base plate, a post, a Y-direction slide plate, an A-axis turntable and a grinding electric spindle. A Z-direction servomotor drives a Z-direction lead screw to drive the Z- direction slide plate to perform Z-direction movement, the post is arranged on a X- direction guide rail slider, a X-direction servomotor drives an X-direction lead screw to drive the post to perform X-direction movement, a Y-direction guide rail is fixedly arranged on the post, the Y-direction slide plate is positioned on a Y-direction guide rail slider, a Y-direction servomotor drives a Y-direction lead screw to drive the Y-direction slide plate to perform Y-direction movement, the Z-direction slide plate is provided with the workpiece electric spindle, the A-axis turntable is arranged on the Y-direction slide plate and is connected with an A-axis servomotor, and the grinding electric spindle is fixed on the A-axis turntable by bolt fastening. The five-axis structure is adopted in the grinding machining center, thus simplifying machine tool structure, realizing grinding of super-long nuts, enlarging applicability of the machine tool and lowering manufacturing cost.

Description

Technical field: [0001] The invention relates to a five-axis multifunctional thread grinding machining center, which belongs to the field of numerical control machine tools, and in particular relates to a multifunctional compound processing machine tool suitable for grinding screw nuts. Background technique: [0002] The screw is an important functional part of the precision CNC machine tool, and the ball nut is the most important component of the screw. The quality of the ball nut directly determines the accuracy and feel of the screw. The existing ball nut grinding machine grinds the ball nut For the inner raceway, the relative position of the inner raceway and the ball return hole can only be guaranteed by the operator's visual inspection, and the product quality cannot be guaranteed stably at all; the more advanced ball nut grinding center is a three-axis linkage internal thread grinding center. With high processing accuracy, there are also the following main problems: t...

AI Technical Summary

Problems solved by technology

[0002] The screw is an important functional part of the precision CNC machine tool, and the ball nut is the most important component of the screw. The quality of the ball nut directly determines the accuracy and feel of the screw. The existing ball nut grinding machine grinds the ball nut For the inner raceway, the relative position of the inner raceway and the ball return hole can only be guaranteed by the operator's visual inspection, and the product quality cannot be guaranteed stably at all; the more advanced ball nut grinding center is a three-axis linkage internal thread grinding center. With high processing accuracy, there are also the following main problems: the ball nuts that can be processed are relatively small, and nuts with larger diameters or lengths cannot be processed; processing different nuts requires manual adjustment of the swing angle and internal thread of the grinding wheel corrector The swing angle of the grinding electric spindle; the operation and clamping are not convenient enough; only the diamond roller can be used to correct the grinding wheel, and different nuts need different diamond rollers, which is costly

However, the existing most advanced four-axis or five-axis nut grinding center can only process small nuts or large nuts. If the screw manufacturer wants to manufacture various types of screw nuts , it is necessary to purchase a variety of different types of grinding centers, and the investment cost is relatively large

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