A Workpiece Dimension Measuring Instrument for CNC Milling Center

Abstract

The invention discloses a workpiece dimension measuring instrument for a numerical control milling machining center. The dimension measuring instrument comprises a driving device, radial measuring equipment, end face measuring equipment and a controller; the driving device comprises a bottom plate, a radial probe support, an end face probe support, a measuring equipment advancing and retreating cylinder, a linear guide rail, a radial measuring equipment sliding block, an end face measuring equipment sliding block, a stud, a sliding plate, an adjustable bolt and an adjustable sliding block; all the measuring equipment comprises an arrow fastening screw, an arrow, a probe zero calibration nut, a probe and a measuring bar. The dimension measuring instrument is capable of being installed on the numerical control milling machining center, it is not necessary to stop machines between working procedures and on-machine measurement of critical dimension of parts can be achieved, the problem of mass deviation caused by secondary clamping and secondary alignment of workpieces is avoided, the assistant measurement man-hour is reduced, the production efficiency is improved and the dimension measuring instrument is especially suitable for full-automatic and mass production line operation.

Description

technical field [0001] The invention relates to the field of numerical control machining, in particular to a workpiece size measuring instrument for a numerical control milling machining center. Background technique [0002] There are three ways to measure the dimensions of CNC mass-processed workpieces: manual measurement, off-line measurement and on-machine measurement. Among them, manual measurement uses vernier calipers, micrometers and other detection tools for manual calibration measurement. The advantage is that the operation is convenient and the operator generally does not need training. The disadvantage is that it is time-consuming and is not suitable for measuring complex profiles, many points and mass production. Offline measurement is After each processing procedure, the workpiece is removed from the machine tool, and then other precision equipment such as three-coordinate measuring machines are used to measure the key dimensions of the workpiece. The advantage ...

AI Technical Summary

Problems solved by technology

However, this method needs to manually observe whether the tool touches the surface to be detected and record the coordinates of the machine tool, and in CNC machining, it is inevitable that the tool will wear out due to long-term use, resulting in machining dimension deviation and low measurement accuracy.

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