On-machine vision detecting method of rotating cutting tool and detecting device thereof

Abstract

The invention discloses an on-machine vision detecting method of a rotating cutting tool and a detecting device thereof. The method comprises the following steps that a first camera is used for capturingan image of the front cutting face of the rotary cutting tool; the image is subjected to processing and analyzing to obtain position angles of cutting edges; a second camera is controlled to rotateto the lateral cutting face according to the angels and the axis of the second camera is vertical to the lateral cutting face, and then shooting is conducted; images of the lateral cutting faces of the cutting edges are obtained; the images of the front cutting face and the lateral cutting faces are subjected to vision analyzing to obtain the abrasion condition of the cutting tool. The detectingdevice comprises the first camera and the second camera perpendicular to each other and mounted at a bracket, and further comprises a rotating motor driving the bracket to rotate. A rotating shaft ofthe rotating motor is concentric with the axis of the first camera. On-machine detection can be achieved. Abrasion areas of the lateral faces of the cutting tool can be accurately shot, and detectingefficiency is improved.

Description

technical field [0001] The invention relates to a tool wear detection device and a detection method, in particular to a visual detection method and a detection device which are applied to a rotary tool and can be detected on the machine. Background technique [0002] In automated production, an extremely critical technology is tool condition monitoring technology, which is one of the main means to reduce manufacturing costs, reduce manufacturing environmental hazards, and ensure the normal and efficient operation of the manufacturing system and product quality. Although traditional tool life management can reduce the loss caused by tool wear and breakage to a certain extent, due to the randomness of tool life, the life limit estimation is often too conservative, so that most tools are not fully utilized. Therefore, in the machining process, it is very important to regularly grasp the state of the tool, monitor and diagnose damage faults such as tool wear, to prolong the trou...

AI Technical Summary

Problems solved by technology

Although this detection technology can realize the wear detection of the end of the tool and the side edge, the detection of the two is independent of each other.

Therefore, for rotary tools, this detection method also needs to take multiple images and process them separately, resulting in long processing time and low processing efficiency

[0008] In addition, since the spindle of the processing machine (such as a milling machine) that rotates the tool cannot confirm the rotation angle with high precision, it is difficult to realize on-machine detection. The tool must be removed from the machine tool and installed on a special detection mechanism

If the tool wear is still within the use range, the tool needs to be installed back on the machine tool for processing, which increases the time cost

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