Fixed abrasive ultrasonic machining device and method

A technology of consolidated abrasives and ultrasonic machining, which is applied in the direction of grinding drive devices, grinding/polishing safety devices, metal processing equipment, etc., can solve the problems of reduced processing accuracy, complex machine tool structure, and low processing efficiency, and achieve equivalent Stable impedance, simplified machine tool structure, and fast response speed

Inactive Publication Date: 2016-12-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology

The disadvantages of this kind of processing are: the tool itself will wear; when processing deep and small holes, it is difficult for the abrasive suspension to enter the processing area, and the processing efficiency is low; the flow of the abrasive suspension will reduce the processing accuracy
However, the structure of the machine tool for

Method used

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  • Fixed abrasive ultrasonic machining device and method
  • Fixed abrasive ultrasonic machining device and method
  • Fixed abrasive ultrasonic machining device and method

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Embodiment Construction

[0028] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0029] see figure 1 As shown, in this embodiment, a bonded abrasive ultrasonic processing device includes an XY axis feed device 1, a working tank 2, a spindle column 3, a bonded abrasive tool 4, a Z axis servo feed device 5 and an ultrasonic generating system, The working tank 2 is set on the XY axis feeding device 1 through the base 6, the workpiece 7 to be processed is placed in the working tank 2 and the working fluid is filled in it, and the ultrasonic generating system includes an ultrasonic horn 8 , an ultrasonic transducer 9 and an ultrasonic generator 10, the consolidated abrasive tool 4 is connected to the bottom of the ultrasonic horn 8 by bolts, the Z-axis servo feed device 5 is arranged on the main shaft column 3, and the The ultrasonic transducer 9 is arranged on the Z-axis servo feed...

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Abstract

The invention discloses a fixed abrasive ultrasonic machining device and method, belongs to the machining field of hard and brittle materials, and can be used for abnormal hole machining and plane grinding. The fixed abrasive ultrasonic machining device comprises an X-Y-axis feeding device, a working trough, a column of a main shaft, a fixed abrasive tool, a Z-axis servo feeding device and an ultrasonic wave generation system, wherein the ultrasonic wave generation system uses an ultrasonic constant current power supply; the ultrasonic constant current power supply comprises a collecting unit for collecting currents and voltages of two ends of an ultrasonic transducer and a processing unit for calculating equivalent impedance of an ultrasonic machining system; the processing unit which compares the calculated equivalent impedance with an impedance set value adjusts the feeding speed of the fixed abrasive tool and/or the output current of an ultrasonic wave generator. The fixed abrasive ultrasonic machining device disclosed by the invention not only is simple in structure and high in machining precision, but also is fast in response speed, and the stability of a fixed abrasive ultrasonic machining process is improved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic processing, and in particular relates to a consolidated abrasive ultrasonic processing device and method. Background technique [0002] Hard and brittle materials such as optical glass, ceramics, and silicon carbide have superior physical, chemical, and mechanical properties, and have been increasingly used in industrial fields such as aviation, electronics, automobiles, metallurgy, bioengineering, and national defense. Electrochemical machining and EDM are difficult to process non-conductive materials. Laser processing can cause cracks in high temperature resistant hard and brittle materials. Ultrasonic machining has been proven to be an effective method for forming hard and brittle materials. Ultrasonic machining is a process that applies ultrasonic vibrations higher than 20kHz in a certain direction on a tool or workpiece to achieve part forming. ), can realize special-shaped hole machining...

Claims

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Application Information

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IPC IPC(8): B24B1/04B24B47/20B24B55/02
CPCB24B1/04B24B47/20B24B55/02
Inventor 汪炜缪兴华耿其东丁瑞翔刘斌
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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