CN112621387A - Method for detecting parallelism of vertical tool rest moving on working table of heavy vertical lathe - Google Patents

The invention discloses a method for detecting parallelism of a vertical tool rest moving pair working table of a heavy vertical lathe, and belongs to the technical field of machine tool precision detection. The method comprises the steps of placing a laser transmitter of a laser geometric measuring instrument on a position on a workbench, wherein the position can scan the area of a vertical tool rest, adjusting the rotating laser surface of the laser transmitter to be parallel to the surface of the workbench by using a near point zero setting and far point zero setting method of a laser receiver of the laser geometric measuring instrument, establishing a reference plane, adjusting the three positions at the far point by using the laser receiver again in order to establish the accuracy of the reference plane, placing the laser receiver on the vertical tool rest, adjusting the range of the rotating laser surface which can be received by the receiver, starting the vertical tool rest for detection, reading the numerical values of all positions on the stroke by using the laser geometric measuring instrument, processing data, and calculating the parallelism error between the movement of the vertical tool rest and the workbench surface.

Method for detecting parallelism of vertical tool rest moving on working table of heavy vertical lathe

Technical Field

The invention relates to a method for detecting parallelism of a vertical tool rest moving pair working table of a heavy vertical lathe, belonging to the technical field of machine tool precision detection.

Background

At present, in the machine tool manufacturing industry, when the precision of G5 items of a vertical lathe, namely the parallelism of a worktable surface is detected by moving a vertical tool rest, detection is usually carried out by a flat gauge. The method is that a flat ruler is placed on the working table surface in a position parallel to the front guide rail surface of the cross beam, the rotary working table adjusts the positions of two ends of the flat ruler at one side of the tool rest to zero, after the flat ruler is parallel to the working table surface, the indicator is fixed on the vertical tool rest, the measuring head of the indicator touches the testing surface of the flat ruler, and the vertical tool rest is moved for testing.

However, when the heavy vertical lathe is detected, along with the increase of the specification of the machine tool, the sizes of the span and the ruler checking fixture are gradually increased. The long-distance flat gauge is difficult to meet the precision requirement during processing, the flat gauge is influenced by a gravity field during detection, deflection deformation is generated, and a certain error exists between a measurement result and a true value. The leveling gauge is required to be adjusted to be parallel to the working table surface during detection, and the method is relatively difficult to operate. Aiming at the problem, a simple and reliable measurement method is urgently needed to be researched to solve the problem so as to improve the detection precision of the machine tool.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides the method for detecting the parallelism of the movement of the vertical tool rest of the heavy vertical lathe on the working table, the operation is simpler and more convenient, the efficiency is higher, the precision is higher, and the parallelism error between the movement of the vertical tool rest and the working table can be clearly calculated.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method for detecting the parallelism of vertical tool post moving on the working table of heavy vertical lathe features that the laser transmitter of laser geometric measurer is arranged on the working table at the position where it can scan the vertical tool post region, the laser receiver of said measurer is used to zero at near point and zero at far point, the rotary laser surface of said transmitter is regulated to be parallel to the surface of working table, a reference plane is created, and the accuracy of said reference plane is improved, and (3) aligning the three positions at the far point by the laser receiver again, placing the laser receiver on the vertical tool rest, adjusting the range in which the receiver can receive the rotating laser plane, starting the vertical tool rest for detection, reading the numerical values of the positions on the stroke by using the laser geometric measuring instrument, processing data, and calculating the parallelism error between the movement of the vertical tool rest and the working table.

The method is simpler and more convenient to operate, higher in efficiency and higher in accuracy, the numerical values of all positions on the stroke are read through the laser geometry measuring instrument, data processing is carried out, the parallelism error between the movement of the vertical tool rest and the working table surface can be clearly calculated, and the problems that the flat ruler checking tool is influenced by a gravity field to generate deflection and a certain error exists between the measured result and the true value are solved.

The invention has the beneficial effects that: the method for detecting the parallelism of the vertical tool rest of the heavy vertical lathe on the working table is simple and convenient to operate, high in efficiency and high in accuracy, the vertical tool rest is started to detect, numerical values of all positions on a stroke are read, data processing is carried out, the parallelism error of the movement of the vertical tool rest and the working table can be clearly calculated, and the problems that a flat gauge checking fixture is influenced by a gravity field, deflection deformation is generated, and a certain error exists between a measured result and a real value are solved.

Drawings

The invention is further described with reference to the following figures and detailed description.

FIG. 1 is a schematic view of the adjusting apparatus and the table of the present invention.

FIG. 2 is a schematic view of the adjusting apparatus and the table plane according to the present invention.

FIG. 3 is a schematic diagram of detecting parallelism of a vertical tool post to a work surface of a machine tool.

Reference numbers in the figures:

1. the device comprises a workbench, 2, a laser emitter, 3, a laser receiver, 4 and a vertical tool rest.

Detailed Description

The method is simpler and more convenient to operate, higher in efficiency and higher in accuracy, the numerical values of all positions on the stroke are read through the laser geometry measuring instrument, data processing is carried out, the parallelism error between the movement of the vertical tool rest and the working table surface can be clearly calculated, and the problems that the flat ruler checking tool is influenced by a gravity field to generate deflection and a certain error exists between the measured result and the true value are solved.

1. A method for detecting the parallelism of the movement of a vertical tool rest of a heavy vertical lathe to a working table top is characterized by comprising the following steps: the method comprises the steps of placing a laser transmitter of a laser geometric measuring instrument on a position on a workbench, wherein the position can scan the area of a vertical tool rest, adjusting the rotating laser surface of the laser transmitter to be parallel to the surface of the workbench by using a near point zero setting and far point zero setting method of a laser receiver of the laser geometric measuring instrument, establishing a reference plane, adjusting the three positions at the far point by using the laser receiver again in order to establish the accuracy of the reference plane, placing the laser receiver on the vertical tool rest, adjusting the range of the rotating laser surface which can be received by the receiver, starting the vertical tool rest for detection, reading the numerical values of all positions on the stroke by using the laser geometric measuring instrument, processing data, and calculating the parallelism error between the movement of the vertical tool rest and the workbench surface.