Automatic reaming and counterboring cutter applicable to weakly rigid equipment

An automatic manufacturing and weak rigidity technology, applied in the direction of manufacturing tools, metal processing equipment, drilling/drilling equipment, etc., can solve the problems that cannot meet the needs of automatic assembly, improve the finish of the hole, improve the finish of the hole wall, reduce the The effect of small vibrations

Inactive Publication Date: 2020-07-03
SHANGHAI TOPNC NUMERICAL CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, it cannot meet the automated assembly requirements of the new generation of aircraft in terms of export burr control and spot spot angle control.

Method used

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  • Automatic reaming and counterboring cutter applicable to weakly rigid equipment
  • Automatic reaming and counterboring cutter applicable to weakly rigid equipment
  • Automatic reaming and counterboring cutter applicable to weakly rigid equipment

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Experimental program
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Embodiment approach

[0033] As a preferred embodiment of the present invention, the helical grooves are arranged at variable helix angles, and the interior of the helical grooves is finely polished.

[0034] As a preferred embodiment of the present invention, the helix angle of the variable helix is ​​30°-40°.

[0035] As a preferred embodiment of the present invention, the countersinking edge is a linear countersinking edge, so that the angle of the countersinking is more precise, the accuracy of the cooperation with the fastener is higher, and the assembly life of the aircraft parts is improved.

[0036] As a preferred embodiment of the present invention, the tool clamping handle is a high-precision clamping handle, and the tolerance of the high-precision clamping handle is h6, which can be matched with any type of tool holder.

[0037] As a preferred embodiment of the present invention, the tool body is designed as an inverted cone, which cuts briskly, reduces the friction between the tool and ...

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PUM

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Abstract

The invention provides an automatic reaming and counterboring cutter applicable to weakly rigid equipment. The cutter comprises a cutter body used for performing machining and a cutter clamping handleportion. The cutter body is provided with a drilling portion and a counterboring portion from top to bottom in sequence. The drilling portion, the counterboring portion and the cutter clamping handleportion are integrally formed. The drilling portion comprises a drilling tip and a cutting edge. A spiral groove and a counterboring edge are formed on the counterboring portion. A transition filletis arranged between the spiral groove and the counterboring edge. The cutting edge comprises a ridge, a transverse edge body and a main cutting edge body. The drilling tip reams a product, the counterboring edge performs counterboring on the reamed product, and the central axes of the drilling tip and the counterboring edge are located on the same straight line. The design of the cutter provided by the invention is oriented to the weakly rigid equipment, the centering ability is improved, the pore diameter precision is improved, vibration during drilling is reduced, the inverted cone design ofthe cutter effectively prevents contact between the cutter and a pore wall, and the pore wall degree of finish is increased.

Description

technical field [0001] The invention relates to the technical field of automatic assembly of aerospace manufacturing, in particular to an automatic hole-making and spot-sinking tool suitable for weakly rigid equipment. Background technique [0002] At present, the domestic aircraft assembly process is the traditional manual assembly method, first drilling the initial hole, multiple times of reaming, reaming, spot facing and so on. The traditional drilling process is complicated, with low efficiency and poor precision. Drilling and countersinking are completed step by step, and the coaxiality is poor. Traditional manual assembly cannot meet the assembly requirements of new generation aircraft development. In order to complete the assembly task of the new generation of aircraft and achieve the design requirements of high efficiency and long life, the process of automatic assembly instead of manual assembly has been adopted at home and abroad to improve the quality of aircraft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/08
CPCB23B51/08
Inventor 章易镰王宇晗吕振华
Owner SHANGHAI TOPNC NUMERICAL CONTROL TECH CO LTD
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