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Torsional vibration cutter platform for ultrasonic-assisted milling and test system of torsional vibration cutter platform

An ultrasonic-assisted and tool technology, which is applied in the direction of fluid, manufacturing tools, milling machine equipment, etc. using vibration, can solve the problems of energy transfer affecting machining accuracy, small amplitude component vibration, and inability to evenly distribute tools, etc., to improve machining quality and Machining accuracy, reduced contact time, accurate dynamics and the effect of working conditions

Pending Publication Date: 2022-07-22
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the torsional vibration amplitude of the tool, that is, the circumferential vibration amplitude of the tool, some scholars proposed to arrange special structures such as inclined slots on the traditional longitudinal vibration transducer to realize the transformation from longitudinal vibration to torsional vibration and form a longitudinal-torsional composite ultrasonic vibration method. , but the existing circumferential vibration scheme still has the problem that the amplitude component is too small and the vibration cannot be evenly distributed in the circumferential direction of the tool, and the deviation of energy transmission affects the machining accuracy

Method used

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  • Torsional vibration cutter platform for ultrasonic-assisted milling and test system of torsional vibration cutter platform
  • Torsional vibration cutter platform for ultrasonic-assisted milling and test system of torsional vibration cutter platform
  • Torsional vibration cutter platform for ultrasonic-assisted milling and test system of torsional vibration cutter platform

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Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 It is a schematic structural diagram of a torsional vibration tool platform used for ultrasonic-assisted milling. The torsional vibration tool platform includes: piezoelectric transducer array, nodal surface clamping seat a11, tool main platform b, piezoelectric transducer mounting seat c, Low frequency vibration mass block d, electric spindle g, electromagnetic motor f1, signal generator f2, power amplifier f3, tool h, the piezoelectric transducer array in the present invention adopts a plurality of flexible longitudinal vibration piezoelectric transducers a along the The circumference of the tool main platform b is set, and the longitudinal vibration piezoelectric transducer is of a flexible design, which saves installation space and can be applied to the environmental conditions of high-speed rotation of the electric spindle; the signal generator f2, power amplifier f3, The longitudinal vibration piezoelectric transducers a are connected in sequence to ...

Embodiment 2

[0030] This embodiment provides another torsional vibration tool platform for ultrasonic-assisted milling, such as Figure 4 , the longitudinal vibration piezoelectric transducer a in the torsional vibration tool platform is an inflexible structure, while the longitudinal vibration piezoelectric transducer a, the nodal surface clamping seat a11, the tool main platform b, and the piezoelectric transducer mounting seat c. The connection relationship between the low-frequency vibration mass d, the electric spindle g, the electromagnetic motor f1, the signal generator f2, the power amplifier f3, and the tool h is the same as that in the first embodiment.

[0031] Whether it is the longitudinal vibration piezoelectric transducer a in the embodiment 1 or the embodiment 2, it needs to continuously work in the resonance mode when providing ultrasonic torsional vibration, and the resonance mode is easily affected by the environment. , the output force and amplitude will be affected, re...

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Abstract

The invention discloses a torsional vibration cutter platform for ultrasonic-assisted milling and a test system thereof, and the torsional vibration cutter platform comprises a piezoelectric transducer array, a nodal surface clamping seat, a cutter main platform, a piezoelectric transducer mounting seat, a low-frequency vibration mass block, an electric spindle, an electromagnetic motor, a signal generator, a power amplifier and a cutter, the piezoelectric transducer array adopts a plurality of longitudinal vibration piezoelectric transducers, the signal generator, the power amplifier and the longitudinal vibration piezoelectric transducers are connected in sequence, longitudinal vibration pitch surfaces of the longitudinal vibration piezoelectric transducers are fixedly connected with a piezoelectric transducer mounting seat through a pitch surface clamping seat, and the piezoelectric transducer mounting seat is fixedly connected with the tool main platform; a cutter is fixedly connected above the cutter main platform, and an electric spindle is fixedly connected below the cutter main platform and connected with an electromagnetic motor. According to the torsional vibration tool platform, the machining effect is improved, and energy can be stored and transmitted; the dynamic characteristics and the working state of the torsional vibration tool platform are accurately monitored in real time through the testing system.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic-assisted machining, and in particular relates to a torsional vibration tool platform for ultrasonic-assisted milling and a testing system thereof. Background technique [0002] With the rapid development of advanced manufacturing technology, the application demand of advanced materials continues to expand, and the traditional machining method of milling with a single energy has certain limitations in the improvement of machining efficiency, quality or precision. The traditional composite machining technology combined with milling can effectively exert the advantages of both mechanical and ultrasonic machining technologies and make up for the deficiencies of the two technologies. [0003] In ultrasonic-assisted milling, increasing the ultrasonic torsional amplitude value of the tool, that is, the amplitude component of ultrasonic vibration along the circumferential direction of the tool, can eff...

Claims

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Application Information

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IPC IPC(8): B23C9/00B06B1/06B23Q17/00
CPCB23C9/00B06B1/0611B23Q17/00
Inventor 孙梦馨冯勇周智远许江涛周豪杰
Owner NANJING INST OF TECH