Workpiece thickness ultrasonic automatic detection system and method

Abstract

The invention discloses a workpiece thickness ultrasonic automatic detection system. In the system, an X axis main body is fixed on a side face of the top of a rack, an X axis sliding block is arranged on the X axis main body and can slide along an X axis on the X axis main body under driving of an X axis motor, one end of a Y axis main body is fixed on the X axis sliding block, and a Y axis sliding block is arranged on the Y axis main body and can slide along a Y axis on the Y axis main body under driving of a Y axis motor; a coupling agent storage vessel and a coupling agent working vessel are arranged in the rack, a pump is used for pumping the coupling agent in the coupling agent storage vessel into the coupling agent working vessel, and the coupling agent in the coupling agent workingvessel can flow back to the coupling agent storage vessel through a water valve; and an ultrasonic probe is mounted on the Y axis sliding block. The system provided by the invention realizes nondestructive measurement of workpiece thickness.

Description

technical field [0001] The invention relates to the technical field of ultrasonic thickness measurement, in particular to an ultrasonic automatic detection system and method for workpiece thickness. Background technique [0002] The thickness of certain workpieces, such as engine cylinder heads, is an important factor in determining engine performance. If the thickness of the bottom is too thick, the heat dissipation of the engine will be poor; if the thickness of the bottom is too thin, the strength of the engine cylinder head will be insufficient. The failure of the cylinder head is mostly related to the failure of the base plate to meet the design requirements. Therefore, it is necessary to detect the bottom thickness. Since the cylinder head is a closed structure, it cannot be measured directly. [0003] At present, the method of cutting the engine cylinder head first, and then testing it with a vernier caliper and a three-coordinate measuring system is adopted. Acco...

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Problems solved by technology

[0010] The Chinese utility model patent "A Thickness Gauge for Steel Pipe Inspection" with the patent number of 201821839035.4 realizes the storage of thickness data, but the ultrasonic probe UB40-2-U-J-1 used in it belongs to the distance measuring probe for anti-collision of smart cars. It cannot be used in the occasion of testing the bottom thickness of the engine cylinder head

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