Method for detecting parallelism of movement of heavy vertical lathe vertical tool rest to working table

Abstract

The invention discloses a method for detecting the parallelism of movement of a heavy vertical lathe vertical tool rest to a working table, and belongs to the technical field of machine tool precision detection. A laser emitter of a laser geometry measuring instrument is placed at the position, capable of scanning the area of a vertical tool rest, of a workbench, the rotating laser face of the laser emitter is adjusted to be parallel to the surface of the workbench through the method of near-point zero setting and far-point zero setting of laser receivers of the laser geometry measuring instrument, and a reference plane is established. In order to establish the accuracy of the reference plane, the laser receivers are aligned again at three positions of a far point, the laser receivers are placed on the vertical knife rest, the vertical knife rest is started for detection when the receivers are adjusted to receive the range of the rotating laser plane, numerical values of all the positions on a stroke are read through the laser geometric measuring instrument, data processing is carried out, and the parallelism errors of the movement of the vertical tool rest and the surface of the workbench are calculated.

Description

technical field [0001] The invention relates to a method for detecting the parallelism of the movement of the vertical tool rest of a heavy-duty vertical lathe to the working surface, and belongs to the technical field of machine tool precision detection. Background technique [0002] At present, in the machine tool manufacturing industry, the G5 accuracy of the vertical lathe, that is, the detection of the parallelism of the worktable surface by the movement of the vertical tool holder, is usually detected with the aid of a flat ruler. The method is to place a square ruler on the workbench parallel to the front guide rail surface of the crossbeam, and turn the workbench to adjust the two ends of the ruler to "zero" on the side of the tool holder, so that the ruler is parallel to the workbench and the indicator is fixed. On the vertical turret, make the probe touch the inspection surface of the ruler, and move the vertical turret for inspection. [0003] However, when inspe...

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Problems solved by technology

[0003] However, when inspecting heavy vertical lathes, as the machine tool specifications increase, the size of the span and level gauges also gradually increases.

It is difficult to meet the precision requirements when processing the long-distance flat gauge. The flat gauge is affected by the gravity field during the inspection, resulting in deflection and deformation. There is a certain error between the measurement result and the real value.

It is also necessary to adjust the parallelism between the level gauge and the worktable during inspection, and this method is relatively difficult to operate

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