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Stepping-in axial vibration drilling technique and apparatus therefor

An axial vibration, step-by-step technology, used in metal processing equipment, drilling/drilling equipment, portable drilling rigs, etc., can solve the difficulty of parameter selection and optimization and the increase in workload, complicated control and optimization, and processing technology. Complex problems, to achieve the effect of simplifying the workload of parameter selection and optimization, convenient operation, and simple equipment production

Inactive Publication Date: 2007-01-31
JIANGSU UNIV
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Problems solved by technology

[0006] From the above analysis, it can be seen that in the process of axial vibration drilling, due to the superposition of axial vibration, the drilling parameters are changed from the original two (machine speed n, feed rate f r ) into 4 (machine speed n, feed f r , vibration frequency f, amplitude A), which makes the processing technology more complicated, and the difficulty and workload of parameter selection and optimization are also greatly increased
Especially for variable parameter vibration drilling, since the process parameters selected in each drilling stage are different, the control and optimization of parameters are more complicated, and the workload also increases significantly

Method used

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  • Stepping-in axial vibration drilling technique and apparatus therefor
  • Stepping-in axial vibration drilling technique and apparatus therefor
  • Stepping-in axial vibration drilling technique and apparatus therefor

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Embodiment Construction

[0027] The present invention is a step-by-step axial vibration drilling process and equipment. "Instead, the axial movement characteristics of the drill bit are controlled by adjusting the pulse frequency and vibration shape of the stepper motor, and different vibration processing modes can be selected according to processing needs. This process simplifies the operation process of axial vibration drilling and expands the technological range of vibration drilling.

[0028] Such as figure 2 As shown, the equipment for realizing this process is mainly composed of machine tool body 1, dynamic strain gauge 2, system microcomputer 3, hardware interface circuit 4, stepper motor driver 5, stepper motor 6, reduction mechanism 7, and drilling dynamometer 13 ,

[0029] Wherein hardware interface circuit 4 mainly comprises address decoding module, 8255 stepper motor drive module, MAX196 analog-to-digital conversion module, and it adopts ISA bus technology, directly makes interface card...

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Abstract

A step-type axial vibration drilling technology for drilling medium or small hole on the material difficult to machine features that a step motor is used as the power source for the axial movement of drill bit for combining the axial advancing with axial vibration. Its apparatus is composed of machine-tool body, dynamic strainometer, systematic microcomputer, hardware interface (and its software), step motor and its driver, speed reducing mechanism, and drilling force measuring meter.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and particularly refers to a step-by-step axial vibration drilling process and equipment thereof, which are applied to drilling in mechanical processing, especially to the processing of small and medium holes of difficult-to-machine materials. The invention combines the feed motion and axial vibration in the traditional axial vibration drilling into one, and achieves the purpose of feed and axial vibration through "more advance and less retreat" of the drill bit. Background technique [0002] Holes are the basic shapes and surfaces that make up mechanical parts, and hole processing is the most common processing technology in mechanical processing. Relevant data show that: about 30% of machining is the machining of holes, of which about 80% are processed by cutting, and the amount of metal removal in hole machining accounts for about 1 / 3 of the total amount of metal removal in machining . ...

Claims

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Application Information

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IPC IPC(8): B23B35/00B23B37/00B23B47/02B23B45/16
Inventor 王贵成马礼杰王志吴卫国
Owner JIANGSU UNIV
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