Measuring system and method for detecting tonnage and pressure point gap of press machine

By installing high-precision sensors on the press and processing data using a polynomial fitting algorithm, combining zero point calibration and structural correction coefficients, the problem of low detection accuracy in the prior art is solved, and a higher accuracy and reliability of press tonnage and pressure point clearance detection is achieved.

CN119738257AActive Publication Date: 2025-04-01扬州大祺自动化技术有限公司
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Patent Information

Application Number
CN202411921951.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-01
Estimated Expiration
2044-12-25

AI Technical Summary

Technical Problem

When detecting the tonnage and pressure point clearance of the prior art, the measurement accuracy is not high and the operation is complicated, making it difficult to effectively solve the problem of machine deformation under long-term high-strength work.

Method used

High-precision displacement sensor and force sensor are used, combined with polynomial fitting algorithm, the force-displacement data is processed, the actual tonnage and pressure point gap of the press are calculated, and the measurement error is corrected through zero point calibration and structural correction coefficient.

Benefits of technology

The accuracy and reliability of the tonnage and pressure point gap detection of the press is improved, and the deformation of the press can be more accurately reflected under different loads, and a more effective inspection report can be generated.

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Abstract

The invention discloses a measuring system and method for detecting the tonnage and pressure point gap of a press machine, and belongs to the technical field of mechanical engineering measurement, and the method specifically comprises the steps: installing a high-precision displacement sensor between an upper die and a lower die of the press machine, and installing a force sensor on a workbench surface of the press machine, starting the displacement sensor and the force sensor, carrying out zero calibration, recording the reading of the sensors in an initial state as a reference value, gradually increasing the load of the press machine, recording the reading of the displacement sensor and the force sensor when the load is increased every time, and determining the load of the press machine by utilizing the reading of the displacement sensor and the force sensor under different loads. The actual tonnage of the press machine is calculated, the pressure point gap is detected, detected data are analyzed, a pressure-displacement curve is drawn, the linearity and stability of the curve are checked, the tonnage and pressure point gap detection results of the press machine are output, and a detection report is generated.
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