Contact type workpiece wired measuring head for numerical control milling machine

Abstract

The invention discloses a contact type workpiece wired measuring head for a numerical control milling machine, which comprises a non-contact type probe and a contact type probe, and further comprises a positioning base frame, the non-contact type probe and the contact type probe are arranged on the positioning base frame through a telescopic storage mechanism, and the positioning base frame is provided with a connecting flange connected with a three-axis motion table. A cleaning mechanism matched with the contact type probe and the non-contact type probe is arranged on the telescopic storage mechanism, the cleaning mechanism is used for cleaning the surface, needing to be detected, of the workpiece, and the telescopic storage mechanism is further provided with a shading mechanism matched with the non-contact type probe and used for shading the workpiece. According to the invention, the non-contact probe and the contact probe are compounded on the positioning base frame, telescopic control is carried out through the telescopic storage mechanism, the non-contact probe and the contact probe are used for detection, and contact measurement and non-contact measurement are combined together, so that the measurement precision and accuracy are effectively improved.

Description

technical field [0001] The invention relates to the technical field of workpiece measurement, in particular to a contact-type workpiece wire probe for a numerically controlled milling machine. Background technique [0002] During machining, when a process is completed, its processing size needs to be tested. Some workpieces are large in size, and manual measurement is inconvenient. It is necessary to use a detection device for measurement. The current CMM can not only be controlled by a computer. It can complete various complex measurements, and can control processing by exchanging information with CNC machine tools, and can also realize reverse engineering based on measurement data. It is an indispensable general-purpose geometric measuring instrument for modern industrial inspection and quality control. The coordinate measuring machine picks up the signal through the probe. There are two working modes: trigger type and analog type. The trigger type probe is mainly used for...

AI Technical Summary

Problems solved by technology

This working method has high efficiency when measuring regular geometric features (arc, straight line, etc.), but it is not suitable for measuring geometric features such as free-form surfaces; the analog probe can continuously output the displacement information of the measuring end, which is suitable for measuring free-form surfaces. surface and other irregular geometric features; and the existing wired probes have some iron filings and other sundries left on the surface of the product after processing, which will directly affect the measurement results; and they cannot be used with non-contact probes, resulting in test results certain error

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