Orthogonal cutting online dynamic microscopic testing method and device based on vertical type computer numerical control milling machine

Abstract

The invention relates to an orthogonal cutting online dynamic microscopic testing method and device based on a vertical type computer numerical control milling machine. The device comprises a homemadecutter bar, an orthogonal cutting testing system based on the vertical type computer numerical control milling machine and an online optical microscopic image pickup system. A testing cutter is installed on a main shaft of the computer numerical control milling machine through the homemade cutter bar in an orthogonal cutting position state, and the main shaft guarantees that the cutter is fixed and does not rotate by the use of the automatic locking function in the cutting process; the homemade cutter bar can achieve rapid adjustment of the working rake angle of a blade through replacement ofangle adjusting gaskets; and the cutter cuts a workpiece according to the preset cutting depth to conduct orthogonal cutting movement, so that the accuracy and the controllability of the cutting depth of the cutter are achieved. A workbench conducts uniform-speed feed movement at the preset speed in the cutting process, and therefore the accuracy and the controllability of the cutting feed speedare achieved. The online optical microscopic image pickup system is refitted in the horizontal direction through an universal support, and therefore the purpose that enlargement and online image pickup microscopic observation are conducted in the orthogonal cutting region is achieved.

Description

technical field [0001] The invention relates to an online dynamic microscopic test method and device for orthogonal cutting based on a vertical numerical control milling machine, which is mainly suitable for online microscopic imaging and dynamic observation research of chip formation process in cutting processing under the condition of small cutting depth. Background technique [0002] Orthogonal cutting refers to the cutting when the inclination angle of the main cutting edge of the tool is zero. At this time, the main cutting edge is at right angles to the cutting speed direction, so it is also called right-angle cutting. Orthogonal cutting test method is a common method used by scholars at home and abroad to study the chip formation process. Through the orthogonal cutting test method to study the material deformation law in the cutting process, it can be used to reveal various physical phenomena in metal cutting, including cutting force, cutting heat, tool wear and machi...

AI Technical Summary

Problems solved by technology

But the disadvantage is that the optical magnification of the general high-speed camera is small, and it is impossible to clearly and dynamically observe the chip formation process under the condition of small cutting depth.

If an online optical microscopic camera system composed of a stereo microscope is used for dynamic observation, the problem of small optical magnification can be solved; however, the traditional online optical microscopic camera system uses a stereo microscope to install vertically Observation cannot be used for turning processing observation; and the spatial position relationship between the tool and the workpiece on the lathe is not convenient for installing an online optical microscope camera system

Therefore, the orthogonal cutting test method based on turning processing cannot meet the needs of online dynamic microscopic observation and study of chip formation process under the condition of small depth of cut

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