Disc type tool magazine utilizing harmonic reducer

Abstract

The invention discloses a disc type tool magazine utilizing a harmonic reducer. The disc type tool magazine utilizing the harmonic reducer comprises a rigid gear, a flexible gear and a wave generator. The wave generator is connected with a motor. The rigid gear or the flexible gear is connected with a driven module and the driven module is connected with a cutterhead. Fixtures are arranged on the cutterhead. According to the disc type tool magazine, the transmission clearance can be small during the transmission and the transmission clearance would not be increased when the tool magazine is used in the way that the transmission from the motor to the cutterhead is completed by the harmonic reducer, so that a clearance eliminating structure does not need to be arranged and the integral structure of the tool magazine can be simplified; the motor and the harmonic reducer both work within the rated rotating speed, so that wear and heat generating can be effectively reduced, and the service life of the motor and the reducer can be improved; a harmonic transmission mechanism can obtain larger reduction ratio directly and the position accuracy when the tool magazine rotates is high; the transmission ratio and the transmission accuracy can be controlled stably and the transmission noise is lower than a worm gear because of a smaller wear; the output mode can be switched according to the load requirement, for example, a user can fix the rigid gear and use the flexible gear for output, or fix the flexible gear and use the rigid gear for output.

Description

technical field [0001] The invention relates to a tool magazine for a numerically controlled machine tool, in particular to a disc-type tool magazine using a harmonic reducer. Background technique [0002] With the continuous development of science and technology, the industry has higher and higher requirements for the processing efficiency of CNC machine tools. One-time clamping to realize multi-process continuous processing is the main development direction of CNC machine tools at present. Most of the existing CNC machine tools have adopted automatic tool changing devices, which are also called tool magazines in the industry. For the disc type tool magazine, also known as the sun wheel tool magazine, the current existing disc tool magazine mainly adopts the structure of the worm gear for transmission. This transmission mechanism has the advantages of mechanical self-locking and small lateral clearance, but Due to the large volume of the worm gear itself and the difficulty...

AI Technical Summary

Problems solved by technology

For the disc type tool magazine, also known as the sun wheel tool magazine, the current existing disc tool magazine mainly adopts the structure of the worm gear for transmission. This transmission mechanism has the advantages of mechanical self-locking and small lateral clearance, but Due to the large volume of the worm gear itself and the difficulty in processing, the wear speed is fast, and the lateral clearance cannot be eliminated after wear, which makes the positioning accuracy of the tool decrease and the vibration during processing is more severe. Therefore, it is necessary to make further improvements.

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