Large-diameter countersink reverse reaming tool for numerical control machining

A large-diameter, countersunk hole technology, used in metal processing equipment, manufacturing tools, drilling/drilling equipment, etc., can solve the problems of difficult to achieve bolt through-hole ends, inconvenient turning, bulky, etc., to reduce the phenomenon of knife vibration , to ensure the quality of processing, the effect of broad application prospects

Pending Publication Date: 2018-03-13
CRRC LUOYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Representative large-scale components include wheel hubs and main frames. Due to the large size and heavy weight of these components, it is extremely inconvenient to turn over, and it is difficult to realize counterbore processing at the end of the bolt through hole in some positions.

Method used

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  • Large-diameter countersink reverse reaming tool for numerical control machining
  • Large-diameter countersink reverse reaming tool for numerical control machining
  • Large-diameter countersink reverse reaming tool for numerical control machining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] As shown in the figure, a large-diameter countersinking tool for countersinking in this patent application is characterized in that it includes a tool holder 3, a tool body, a key and a stopper.

[0027] The lower part of the tool bar 3 is provided with a first keyway 4 , and the lower part of the first keyway 4 is provided with a stopper mounting part 5 .

[0028] The cutter body includes a body and three blades.

[0029] The middle part of the body is provided with a mounting hole, and the inner side of the mounting hole is provided with a through second keyway 6; the outer side of the body is provided with three blade installation parts; the outer surfaces of the three blade installation parts are all arc-shaped , coincides with the inner diameter of the counterbore 2 to be processed; the three blade installation parts are respectively the first blade installation part 7 , the second blade installation part 8 and the third blade installation part 9 .

[0030] The th...

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PUM

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Abstract

The invention discloses a large-diameter countersink reverse reaming tool. The large-diameter countersink reverse reaming tool is characterized by comprising a tool rod, a tool body, a key and a stoppiece, a first key groove is formed in the lower portion of the tool rod, a stop piece installation part is arranged below the first key groove, the tool body comprises a body and three blades, an installation hole is formed in the middle of the body, a second key groove which is through is formed in the inner side face of the installation hole, the tool body is connected with the tool rod throughthe key, and the stop piece is detachably arranged on the stop piece installation part of the tool rod and used for preventing the tool body from being disengaged from the tool rod. The large-diameter countersink reverse reaming tool is suitable for large-diameter countersink reverse machining, and the blades can be rapidly replaced; the three blades on the tool body are sequentially flush or staggered in the radial direction, so the three blades bear force evenly, the tool vibrating phenomenon in the cutting process is reduced, the reaming machining quality is ensured, and the tool has wideapplication prospects.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a large-diameter countersinking tool for numerical control machining. Background technique [0002] A wind turbine is an electrical device that converts wind energy into mechanical energy and then converts mechanical energy into electrical energy. At present, wind turbines are developing in the direction of high power and megawatts. With the continuous increase of the megawatt level of a single unit, the weight and volume of the parts increase accordingly, and the manufacturing difficulty also increases accordingly. Representative large-scale parts include wheel hubs and main frame, etc. Due to the bulky size and heavy weight of these parts, it is extremely inconvenient to turn over, and it is difficult to realize counterbore processing at the end of the bolt through hole at some positions. Contents of the invention [0003] The technical problem to be sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/10
CPCB23B2251/02B23B51/102B23B2251/202
Inventor 杨东才谭丁郭君全王勇涛袁善民
Owner CRRC LUOYANG CO LTD
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