Automatic tool change ultrasonic electric spindle

Abstract

The invention discloses an ultrasonic electric spindle with an automatic tool changing function. The ultrasonic electric spindle with the automatic tool changing function comprises a spindle shell, a spindle rotor, a linear driving device, a tool changing push rod, a collet, a wireless electric energy transmitting module, a squirrel cage type motor and a hollow transducer, wherein the collet is arranged on the hollow transducer; and one end of the tool changing push rod successively penetrates through the wireless electric energy transmitting module, the spindle rotor and the hollow transducer and is connected with the collet while the other end of the tool changing push rod is connected with a linear driving device. The ultrasonic electric spindle with the automatic tool changing function is skillful and reasonable in structural design, the collet can be released and clamped by controlling stretching and retracting of the linear driving device, then a tool can be taken and placed manually or by an automatic tool magazine so that automatic tool changing can be realized, the tool changing process is simplified effectively, the problem of error of degree of tightness due to the traditional tool mounting process is avoided, furthermore, working efficiency is greatly improved, the machining effect is good, and the quality of the product is improved. In addition, the ultrasonic electric spindle is simple in structure, easy to realize and low in cost, and wide popularization and application are facilitated.

Description

technical field [0001] The invention relates to the technical field of ultrasonic electric spindles, in particular to an ultrasonic electric spindle with automatic tool change. Background technique [0002] In recent years, some new hard and brittle composite materials such as C / SiC, C / C, etc. have been used more and more in aerospace, automotive, energy and other fields, but these hard and brittle composite materials are not as easy to process as traditional materials. Traditional machining methods are prone to defects such as fiber tearing, delamination, burrs, and severe tool wear and low efficiency. Ultrasonic vibration machining technology is considered to be one of the most suitable methods for machining hard and brittle composite materials. Based on the relative movement of the workpiece and the tool in machining, ultrasonic vibration is applied to the workpiece or the tool to obtain better machining performance. Compared with ordinary machining, ultrasonic vibration...

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Problems solved by technology

[0003] However, the tool fixing methods of the existing ultrasonic motorized spindles all use the cooperation of the pressure cap and the chuck to achieve the purpose of fixing. Then take out the tool and put in a new tool, and finally tighten the pressure cap so that the tool is fixed on the chuck. , It is entirely based on personal subjective judgment whether the tool is locked or not, and there is no uniform standard, so there is a large deviation space in the work accuracy, and it is difficult to guarantee the processing quality

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