Scroll plate measuring method and device based on numerical control motion platform

Abstract

The invention discloses a scroll plate measuring method and device based on a numerical control motion platform. The scroll plate measuring device comprises a host base, a rotary platform, an overturning clamping part, a two-pole grating scanning double-ball measuring head part, a radial shaft, a vertical shaft and a tangential shaft motion mechanism. A measuring head part adopts a two-pole grating scanning double-ball measuring head structure. The measuring head part matches a four-axis motion platform and a turnover clamping component to realize rapid, efficient and accurate online measurement of the key form and position size of a scroll plate of a scroll compressor of the automobile air conditioner. Interference in the measurement process can be effectively avoided, a coordinate reference of a scroll plate workpiece is established through one-time clamping of the workpiece, and detection software completes rapid analysis of key measurement items such as profile tolerance of inner and outer spiral lines of the scroll plate by adopting an improved polar radius error mathematical model based on polar coordinates. The invention can be used for quickly detecting the form and position errors on a scroll plate production line, the detection result directly reflects machining errors, and machining precision can be controlled in time.

Description

technical field [0001] The invention belongs to the field of precision measurement, and in particular relates to a method and device for measuring a scroll disk based on a numerical control motion platform. Background technique [0002] The scroll compressor in the automobile air conditioner is a fluid machine that uses the volume change of the volume to realize gas compression. The sealing of the gas in the working chamber of the compressor is completely controlled by the meshing accuracy of the movable and fixed scrolls. The meshing gap between the movable and fixed scrolls directly leads to the radial and axial leakage of the compression chamber, which in turn affects the scroll. The smooth operation, noise, power and other working performance and efficiency of the compressor. The production efficiency and working performance of the scroll compressor are guaranteed by measuring the movable and fixed scroll disks of the scroll compressor. [0003] Because the scroll disk...

AI Technical Summary

Problems solved by technology

At present, scroll parts are generally detected by three-coordinate measuring machine, the detection efficiency is low, the process is cumbersome, and measurement interference often occurs during the detection process, resulting in measurement interruption

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