Apparatus for automatically detecting position of cutting tool in computerized numerically controlled lathe

Abstract

Disclosed is an apparatus for automatically detecting the position of the cutting tool in the computerized numerically controlled lathe which is capable of preventing over-load operation of a driving motor by allowing an arm having a touch sensor mounted thereto to be safely stop at a position of detecting the cutting tool while the driving motor stops operating. A bearing housing is fixedly mounted to one side of a housing main body fixed to one side of a headstock. A stopper is fixedly mounted to the bearing housing. A touch sensor is mounted to a front end of the arm and is pivoted by means of a gear assembly driven by receiving a driving force from a driving motor. A camshaft is fixedly installed at a radial outer circumferential surface of the arm. When the arm is rotated and reaches at a proper position, the worm and the worm wheel of the gear assembly are rotated until the camshaft is brought into contact with the stopper. The arm is moved toward the cutting tool and the cutting tool is brought into contact with the touch sensor in accordance with a program that is preprogramedly input into the computerized numerically controlled lathe. At this time, the touch sensor generates a sensing signal and provides the control part with it. After reaching at a position for sensing the position of the front end of the cutting tool, the arm can be fixed at this position due to the operation of an elastic member while the driving motor stops operating.

Description

technical field [0001] The present invention relates to an apparatus for automatically detecting the position of a cutting tool in a computer-controlled numerically controlled lathe, and more particularly to an apparatus for automatically detecting the position of a cutting tool in a computer-controlled numerically controlled lathe, which can be installed by allowing The arm with the touch sensor is safely stopped at the position for detecting the cutting tool, and at the same time, the driving motor provided in the housing main body is stopped to prevent the driving motor from overloading. Background technique [0002] Generally, a computer-controlled numerically controlled lathe automatically machines a workpiece by using a computer based on pre-programmed machining conditions such as target machining measurements, desired shape, cutting tool movement speed, and the like. Since such a lathe is effective in factory automation and mass production, it has been widely used in ...

AI Technical Summary

Problems solved by technology

[0013] However, the apparatus for detecting the position of the cutting tool as described above has a problem that the arm with the touch sensor must remain at the sensing position until the cutting tool comes into contact with the touch sensor after moving the touch sensor to the sensing position to accurately Compensate for cutting tool position

Therefore, the drive motor must be continuously operated, and thus may be damaged when the drive motor is overloaded

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