Detection method for run-out of inner diameter groove

Abstract

The invention relates to a detection method for run-out of an inner diameter groove. The method comprises the following steps: S1, manufacturing a high-precision measuring tool block; S2, collecting circle centers in multiple directions to form a fitting circle; s3, judging whether the circle of the inner diameter groove is qualified relative to the benchmark B by evaluating the run-out relation between the fitting circle and the benchmark B. According to the detection method, inner diameter groove run-out detection is carried out, measurement can be carried out by fully utilizing an existing three-coordinate system only by spending a small amount of cost to manufacture a corresponding measuring tool block, and it is not needed to consume too long time to load an expensive star-shaped measuring head, so that the production cost is greatly reduced, and the production efficiency is improved. The detection method can be widely applied to measurement of the run-out of the inner diameter groove with the run-out requirement larger than or equal to 0.1.

Description

technical field [0001] The invention relates to a detection method for inner diameter groove runout, which belongs to the technical field of inner diameter runout detection. Background technique [0002] In the field of mechanical processing, it is often necessary to create inner diameter grooves for products. The runout detection of the inner diameter groove is an important index to evaluate the machining accuracy of the inner diameter groove. The runout of the inner diameter groove is generally used to load the star probe (such as figure 1 shown) in the three-coordinate system for measurement. However, loading a star probe is expensive, and because the specifications of the existing star probes in the market are not necessarily suitable for all three-coordinate systems, it needs to be customized according to the original three-coordinate system, which not only greatly increases the cost , and it takes too long from customization to loading completion, often unable to me...

AI Technical Summary

Problems solved by technology

However, loading a star probe is expensive, and because the specifications of the existing star probes in the market are not necessarily suitable for all three-coordinate systems, it needs to be customized according to the original three-coordinate system, which not only greatly increases the cost , and it takes too long from customization to loading completion, often unable to meet customer's requirements for product delivery cycle

And the measuring head of existing three-coordinate system (such as figure 2 As shown) because it is impossible to directly touch the upper and lower edges of the groove to read the value, the runout cannot be directly and accurately measured. Therefore, to use the three-coordinate system for measurement without a star probe, the only way to determine the processing is by destroying the product sampling inspection. Whether the product meets the requirements, this method cannot meet the needs of customers

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