Rotary limiting device for machine tool

Abstract

The invention relates to a rotary limiting device for a machine tool, belonging to the field of machine tools. A synchronous belt pulley is fixed on one end of a guide screw by an expansion sleeve and transmits the rotary motion to another synchronous belt pulley through a transmission belt, another synchronous belt pulley is fixed on a shaft by another expansion sleeve, the shaft transmits the motion to a sun wheel, the sun wheel transmits the rotation to a limiting rotating wheel through a planet wheel on the shaft under the support of a bearing and a supporting base, a planet retarding mechanism is formed by the limiting rotating wheel, the shaft, the supporting base, another shaft, the planet wheel and the sun wheel, the operation of a limiting switch is controlled by a limiting block installed on a groove of the limiting rotating wheel, and the operation of another limiting switch is controlled by another limiting block installed on another groove of the limiting rotating wheel. In the invention, because the limit of a rectilinear motion mechanism is converted to the limit of a circular motion mechanism, the limiting switch can be installed at the position in the range of 360 degrees around a rotary mechanism.

Description

technical field [0001] The invention relates to the field of machine tools, in particular to a mechanical device capable of converting the linear limit of the machine tool into rotational limit. Background technique [0002] As we all know, with the continuous development of digital technology, the digital application of machine tools is also constantly updated. The front and rear movement limits of each axis of the machine tool have also been digitized. The lead screw drives the moving part to move back and forth, and the limit position of its stroke should be limited. According to the traditional method, limit positions should be installed at the two limit positions reached by the moving part. This position is on a part that is stationary relative to the moving part. The limited space for many equipment installations is not very large, or there is no space at all. For example, a floor boring and milling machine with a square ram mechanism has a very small internal spac...

AI Technical Summary

Problems solved by technology

For example, a floor boring and milling machine with a square ram mechanism has a small internal space, and it is troublesome to maintain and disassemble the limit after the whole machine is installed.

And the limit is installed at both ends of the stroke, the distribution is scattered and difficult to maintain, and it also buryes hidden dangers for debugging and maintenance

Images