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Drilling and reaming combination profile cutter

A technology of forming knives and drilling and reaming, which is applied in the directions of reaming knives, repairing drills, drilling tool accessories, etc., can solve the problems of long processing time, low efficiency and high processing cost, and achieve the effect of smooth hole wall

Inactive Publication Date: 2018-12-18
ZHONGSHAN YUANFENG PRECISION CUTTING TOOL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, a high-precision hole needs to be machined, and multiple knives are used in multiple processes. The above-mentioned method needs to change the tool, which not only takes a long time to process, but also has low efficiency and high processing cost.

Method used

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  • Drilling and reaming combination profile cutter

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Effect test

Embodiment Construction

[0012] refer to figure 1 , the invention discloses a drill-reamer combined molding knife, comprising a knife bar 1 and a knife head 2, the knife head 2 is provided with four helical combined blades evenly arranged on the knife head 2 and the knife head The end of 2 is provided with a drill edge, the drill edge has a large amount of chip removal, so two edges are provided to ensure chip removal, and the combined blade is used to further process the hole to the size and accuracy, so the machining allowance is small and the chip removal is small. The smoothness and precision of the hole wall are high, and four pieces are required, and a spiral flute 3 is provided between the two combined blades. The combined blade includes a hole expansion section and a reaming section, and the hole expansion section includes The hole rake face, the reaming flank 4, and the spiral reaming edge 5 formed by the intersection of the reaming rake face and the reaming flank 4; the reaming section inclu...

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PUM

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Abstract

The invention discloses a drilling and reaming combination profile cutter. The drilling and reaming combination profile cutter comprises a cutter rod and a cutter head, four spiral combination bladesevenly arranged on the cutter head are arranged on the cutter head, an edge drilling part is relatively arranged at the end of the cutter head, and a spiral chip discharging groove is formed between each two combination blades; and each combination blade comprises a hole extending section and a hole reaming section, each hole extending section comprises a hole extending front cutter face, a hole extending back cutter face and a spiral hole extending edge formed by intersecting the hole extending front cutter face and the hole extending back cutter face, each hole reaming section comprises a hole reaming front cutter face, a hole reaming back cutter face, and a spiral hole reaming edge formed by intersecting the hole reaming front cutter face and the hole reaming back cutter face, the edgedrilling part comprises an edge drilling front cutter face, an edge drilling back cutter face and an hole drilling edge formed by intersecting the edge drilling front cutter face and the edge drillingback cutter face, the hole drilling edge is a straight line, a sharp angle is formed by the center axis of the cutter head and the hole drilling edge, each edge drilling back cutter face intersects with the corresponding hole extending back cutter face, the hole drilling edge is connected with the corresponding hole extending edge, and the edge diameter of the hole reaming edge is larger than theedge diameter of the hole extending edge.

Description

technical field [0001] The invention relates to a forming knife, in particular to a drill-reamer combined forming knife. Background technique [0002] In the past, a high-precision hole needs to be machined and multiple knives are used in multiple processes. The above-mentioned method needs to change the tool, which not only takes a long time to process, but also has low efficiency and high processing cost. Thereby the applicant has designed a kind of drill-reamer combined forming knife to solve the above problems. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a drill-reamer combined forming knife. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A drill-reamer combined forming knife is characterized in that: it includes a knife rod and a knife head, and the knife head is provided with four helical combined blades evenly arranged on t...

Claims

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Application Information

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IPC IPC(8): B23B51/08B23D77/00
CPCB23B51/08B23D77/00
Inventor 朱松林廖志雄
Owner ZHONGSHAN YUANFENG PRECISION CUTTING TOOL CO LTD