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Method and equipment for drilling micro-holes with variable parameter vibration drill

A technology of drilling equipment and variable parameters, which is applied in the direction of drilling/drilling equipment, boring/drilling, metal processing equipment, etc., to achieve the effect of simple and compact structure, stable feeding and small volume

Inactive Publication Date: 2003-05-21
BEIHANG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a special processing method different from the traditional drilling process, which is to make the drilling tool produce an axial vibration on the basis of the traditional drilling process, thereby effectively improving the processing conditions, improving the quality of micro-hole processing and Efficiency, especially for the micro-hole drilling problem of difficult-to-machine materials, can effectively solve processing technology problems, improve automation level and flexibility

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  • Method and equipment for drilling micro-holes with variable parameter vibration drill
  • Method and equipment for drilling micro-holes with variable parameter vibration drill
  • Method and equipment for drilling micro-holes with variable parameter vibration drill

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Embodiment Construction

[0019] The present invention will be further explained below in conjunction with the accompanying drawings.

[0020] The variable-parameter vibration drilling method for micro-holes of the present invention selects different processing parameters according to different stages of the drilling processing. The drilling processing includes three stages: the drilling stage, the drilling stage, and the drilling stage. In the drilling stage, it is required to ensure that the drill has a high center of rotation and smoothly enter the drill; the drilling stage must ensure smooth chip breaking and chip removal, and the cooling fluid can better cool and lubricate the drill to improve the life of the drill; in the drilling stage The outlet burr is required to be small, and the drilling force will not increase suddenly and cause the drill bit to break. For this reason, different processing parameters must be selected in these three stages. The processing parameters include: spindle speed, feed...

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Abstract

The present invention discloses a method for variable parameter vibration drilling microbore and its equipment. Said equipment consists of controller, power supply, stepper motor, precision spring holder and external sleeve, the interior of external sleeve is equipped with connecting coupler and lead-screw support of ballscrew, the output shaft of the motor is connected with coupler, another end of the coupler is connected with ballscrew, the ballscrew and D.C high-speed motor are cover-mounted in the main shaft motor support, and said main shaft motor support is integral connected with copper sleeve by pressure plate, the motor is fixed ont he pressure plate and connected with power supply, in the copper sleeve of lower end of the motor is connected with main shaft.

Description

Technical field [0001] The invention relates to a device for processing micro-holes, in particular to a method and equipment for variable-parameter vibration drilling of micro-holes. Background technique [0002] A large number of parts in aerospace, aerospace, automotive and other industrial fields require micro-hole processing technology with a large aspect ratio. The processing quality of micro-holes, such as surface roughness, shape accuracy, and export burrs, is directly related to the quality of the product. At present, the main methods for processing small holes (less than 1mm in diameter) at home and abroad are: ordinary drilling, high-speed drilling, electric discharge machining, electric spark composite ultrasonic vibration machining and laser machining. These processing methods have some problems. For example, the surface of the tiny holes processed by EDM and laser has a hardened layer, and the shape accuracy is not high. In addition, proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B41/00B23B47/00B23Q15/00
Inventor 张德远陈志同季远姜兴刚
Owner BEIHANG UNIV
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