Design of an On-machine Measurement System Based on GNC62

DOI: https://doi.org/10.62517/jes.202302406

Author(s)

Liu Yu*, Li Lijuan, Gao Xiaobing, Wu Runhao

Affiliation(s)

Department of Mechanical and Electrical Engineering, Xi'an Technological University, Xi'an,Shaanxi, China *Corresponding Author.

Abstract

Parts with high precision requirements in CNC machining often require manual intervention for repeated checking of critical dimensions and dimension compensation to meet machining accuracy requirements. This makes it difficult to establish a standardized inspection process. This paper proposes a design scheme for an on-machine measurement system based on domestically produced machine tools. Firstly, design measurement features are created through CAD model feature recognition and information extraction, establishing the foundation for measurement data. Next, a method is developed for creating measurement programs for the GNC62 numerical control system based on measurement features. Then, measurement accuracy is enhanced through the design of pre-travel error and probe radius compensation procedures. Finally, on-machine measurement experiments are conducted on typical parts processed with the KEDE GNC62 numerical control system, achieving measurement and calculation of machining dimensions and positional tolerances, and implementing numerical control system alarms based on measurement results. Experimental results demonstrate the successful implementation of on-machine measurement functionality on the GNC62 numerical control system, with measurement accuracy within 0.02mm.

Keywords

On-machine Measurement; Pre-travel Error; Dimensional Tolerance; Tolerance Alarm

References

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