Lifting mechanism

Abstract

The invention provides a lifting mechanism, belongs to the field of machining equipment, and relates to a lifting mechanism of a machine tool. The lifting mechanism is applied to the machine tool which comprises a base, a gantry assembly and a transverse beam assembly. The lifting mechanism has control over ascent and descent of the transverse beam assembly. The lifting mechanism comprises a speed reducer. The speed reducer is fixedly arranged on an upper transverse beam of the gantry assembly, an input shaft of the speed reducer and a hand wheel are coaxially and fixedly connected, and an output shaft of the speed reducer and a line winding wheel are coaxially and fixedly connected. Two pull ropes are arranged at the left end and the right end, one end of one pull rope and one end of the other pull rope are fixedly connected with the external cylindrical surfaces at the two ends of the same diameter of the line winding wheel, and the other end of one pull rope and the other end of the other pull rope are fixedly connected with the left end and the right end of the transverse beam assembly after encircling fixed pulleys respectively. The hand wheel is rotated to drive the line winding wheel to rotate, the pull ropes at the two ends are wound and unwound in an equilong mode at the same time, and therefore the accurate control over movement of the transverse beam assembly is achieved. According to the lifting mechanism, due to the fact that movement of the transverse beam assembly is controlled by the pull ropes, accurate synchronization of movement at the two ends can be guaranteed, and compared with the prior art, the lifting mechanism has the advantages that two mechanical transmission parts are omitted, and the manufacturing cost is reduced.

Description

technical field [0001] The invention belongs to the field of machining equipment, in particular to a lifting mechanism of a machine tool. Background technique [0002] The early stage of product development by enterprises and the realization of their ideas by hobbyists all need to involve the production of parts. The shapes of parts are various, and non-metal (plastic, wood, etc.) or soft metal (copper, aluminum, etc.) Precise processing of contours and contours, through assembly processes such as fastening and assembly, a variety of parts can be made, which can meet most of the parts production needs of users, which brings how to accurately process holes on soft plates at low cost and contour issues. [0003] To solve the above processing problems in the prior art, users need to purchase drilling machines, milling machines and additional fixtures, and most of these prior art devices are designed for processing hard metals, and their relatively thick structures lead to high...

AI Technical Summary

Problems solved by technology

[0006] The invention aims to solve the problem of high cost of the lifting mechanism of the gantry machine tool in the prior art, and designs a lifting mechanism

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