Bidirectional ultrasonic automatic tool changing motorized spindle

Abstract

The invention relates to a bidirectional ultrasonic automatic tool changing motorized spindle which comprises a motorized spindle body and a rotor shaft. The rotor shaft penetrates through an inner ring of a bearing to achieve rotation, an axial vibrator and a radial vibrator are installed at the position of a tool bit of the rotor shaft, and the axial vibrator and the radial vibrator are arranged on the outer end face of the bearing in a sleeving manner; and the axial vibrator and the radial vibrator are connected with an ultrasonic driver, the axial vibrator can axially excite the bearing, the radial vibrator can radially excite the bearing, the bearing is sleeved with an elastic deformation pad, and the two ends of the elastic deformation pad abut against the axial vibrator and the radial vibrator correspondingly. By means of the bidirectional ultrasonic automatic tool changing motorized spindle, an axial and radial vibration superposition method is adopted, a rotary tool bit is subjected to excitation, excitation can be conducted in the same frequency and in the same phase or in the same frequency and in different phases or alternately according to the cutting effect, finally, the rotor shaft vibrates in the axial direction and also vibrates in the radial direction, and bidirectional vibration is formed. The bidirectional ultrasonic automatic tool changing motorized spindle is easy to install, firm in structure, stable in work and capable of achieving axial and radial cutting.

Description

technical field [0001] The invention relates to the technical field of electric spindles, in particular to a two-way wave ultrasonic automatic tool-changing electric spindle for cutting superhard materials. Background technique [0002] In the current high-end manufacturing, the cutting of superhard materials is a major problem. The main reason is that the electric spindles currently used for cutting are all high-speed rotating types, which makes it difficult to process superhard materials. [0003] The existing ultrasonic automatic tool-changing electric spindle, such as the ultrasonic automatic tool-changing electric spindle disclosed in Patent No. CN106112021B, adopts an axial vibration mode, which generates axial waves, and cannot process superhard materials. Contents of the invention [0004] As we all know, the cutting of superhard materials is a major problem in the processing industry. The present invention is mainly designed to solve the problem of cutting superha...

AI Technical Summary

Problems solved by technology

[0002] In the current high-end manufacturing, the cutting of superhard materials is a big problem. The main reason is that the electric spindles currently used for cutting are all high-speed rotating types, and it is difficult to process superhard materials.

[0003] The existing ultrasonic automatic tool-changing electric spindle, such as the ultrasonic automatic tool-changing electric spindle disclosed in patent number CN106112021B, adopts the axial vibration mode, which generates axial waves, and cannot process superhard materials

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