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Differential screw hole-making device and method

A hole-making device and differential screw technology, applied in automatic control devices, driving devices, feeding devices, etc., can solve the problems of low hole capacity, heavy weight, and complex structure of non-axial feeding mechanisms, and improve work efficiency. Efficiency, reduction in device weight, effect of simplifying device composition

Inactive Publication Date: 2012-11-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0007] Aiming at the deficiencies of the existing helical hole milling device, such as complex structure, heavy weight, and some devices have no axial feed mechanism or low ability to make small holes, the present invention proposes a differential helical hole making device and method

Method used

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  • Differential screw hole-making device and method
  • Differential screw hole-making device and method

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Embodiment Construction

[0017] The differential screw drilling device and method of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation examples.

[0018] figure 1 It is a spiral hole-making device for difficult-to-machine materials disclosed by the present invention. The device mainly includes a support cylinder 1101 with a partition in the middle. The support cylinder is divided into an upper support cylinder and a lower support cylinder by the partition, and also includes a The screw feed mechanism 1000 used to realize the spiral movement of the cutter bar 2411 in the support cylinder, the self-rotation mechanism 2400 used to drive the cutter bar to rotate, and the radial deviation adjustment mechanism 2300 to adjust the offset of the cutter bar relative to the central axis of the support cylinder;

[0019] The screw feed mechanism 1000 is mainly composed of a first sliding cylinder 1102 with an internal thread, a secon...

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Abstract

The invention discloses a differential screw hole-making device and a method, belonging to the technical field of flexible machining equipment. The device mainly comprises a differential screw feeding mechanism, a rotating mechanism and a radial deviation adjusting mechanism, wherein the differential screw feeding mechanism realizes the screw motion of a cutter bar; the rotating mechanism drives the cutter bar to rotate; and the radial deviation adjusting mechanism adjusts the deviation of the cutter bar relative to the axis of a support sleeve. The method is characterized in that during holemaking, the screw motion of the cutter bar is controlled by the differential screw feeding mechanism, and the rotation of a cutter is realized by the rotating mechanism. Through the radial deviation adjusting mechanism, the cutter bar can be adjusted according to the aperture of the hole to be made relative to the revolution radius of the support sleeve, and the axial feeding can be realized easily through the addition of the differential combination screw. Therefore, the device and method can be used for mass production of hole making for difficult machining materials such as titanium alloy and carbon fiber reinforced composite materials. In addition, the device has high degree of integration and light weight, and can be used as a tail end execution unit of an automatic hole-making system of a robot. The device and method can greatly improve the hole-making quality and efficiency of parts difficult to machine.

Description

technical field [0001] The invention discloses a screw hole-making device for a hole system, in particular to a differential screw hole-making device and method, and belongs to the technical field of flexible processing equipment. Background technique [0002] With the continuous improvement of modern aircraft's high-speed and high-maneuverability requirements, the aircraft frame parts with structural features such as integration, light weight, and modularization have higher and higher requirements for hole-making precision. Faced with the continuous acceleration of the mass production process of large aircraft, it is imperative to develop some new hole-making processes and equipment in order to achieve high-efficiency and high-precision hole-making of aviation difficult-to-machine materials. [0003] At present, for the difficult-to-machine materials in the aviation field, the hole making technology mostly adopts traditional drilling. However, drilling is a closed continuo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C3/02B23Q5/28B23Q5/04B23Q15/013
Inventor 李亮何宁单以才杨吟飞章婷赵威秦晓杰钱甘
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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