Workpiece loading device and machining device for machining tiny deep holes

A loading device, deep hole technology, applied in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve the problems of affecting processing efficiency and processing accuracy, limited vibration drilling efficiency, irregularity of workpieces to be drilled, etc. , to improve the processing quality, improve the life of the drill bit, and achieve the effect of good drilling effect
CN103586504AInactive Publication Date: 2014-02-19ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2014-02-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A workpiece loading device for machining tiny deep holes comprises a base, an upper cover and a protection shell, wherein the upper cover is used for bearing a workpiece to be drilled, and the protection shell is connected with the base and the upper cover. The base, the upper cover and the protection shell are coaxially arranged. A torsional vibration generating mechanism is arranged inside the protection shell and comprises a torsional actuator for generating torsional vibration and an exciting device for providing an exciting signal for the torsional vibration actuator. The torsional actuator generates the torsional vibration through intelligent materials. The machining device for machining the tiny holes comprises a drilling machine, a main shaft, a drill bit clamp, a drill bit, an intelligent material for driving the drill bit to be torsionally vibrated and a workpiece loading device, wherein the drill bit clamp is fixedly connected with the main shaft, and the drill bit and the workpiece loading device are reversely and torsionally vibrated. The workpiece loading device and the machining device have the advantages that the tiny hole machining efficiency and the machining precision can be improved.
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Description

technical field

[0001] The invention relates to the field of mechanical processing, in particular to a workpiece loading device and a processing device for small deep hole processing. technical background

[0002] With the development of the machinery industry, the requirements for the processing quality of mechanical parts are getting higher and higher. When ordinary drilling is used for small deep hole processing, the drill used is small in diameter and poor in rigidity. When there are hard points in the center, excessive or uneven force when feeding, chip blocking, unstable drill bit angular displacement, and random and uncontrollable excitation frequency, the torque will increase rapidly, forming a strong force in the process of machining. Due to torsional vibration, the drill bit will be twisted and deformed, and when the deformation reaches a certain level, the drill bit will be broken; when drilling a small deep hole, due to the small and deep hole diameter, the tool ...

Claims

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