CN202639431U - 麻花钻 - Google Patents

麻花钻 Download PDF

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Publication number
CN202639431U
CN202639431U CN 201220236437 CN201220236437U CN202639431U CN 202639431 U CN202639431 U CN 202639431U CN 201220236437 CN201220236437 CN 201220236437 CN 201220236437 U CN201220236437 U CN 201220236437U CN 202639431 U CN202639431 U CN 202639431U
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China
Prior art keywords
drill
guide part
spiral
drill body
twist drill
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Expired - Fee Related
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CN 201220236437
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English (en)
Inventor
孙国美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WENLING YONGXIN TOOL CO Ltd
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WENLING YONGXIN TOOL CO Ltd
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Priority to CN 201220236437 priority Critical patent/CN202639431U/zh
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Publication of CN202639431U publication Critical patent/CN202639431U/zh
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Abstract

本实用新型涉及一种麻花钻,属于一种机械加工工具。本实用新型包括钻柄和钻体,钻体包括导向部和切削部,导向部上开有螺旋形的排屑槽,特征在于:在所述的导向部上开有螺旋形的导流槽。本实用新型结构设计合理,增设了导流槽,冷却液可以顺着排屑槽和导流槽两条路径从下往上流动冷却钻体,冷却效果好。

Description

麻花钻
技术领域
本实用新型涉及一种麻花钻,属于一种机械加工工具。
背景技术
麻花钻是通过其相对固定轴线的旋转切削以钻削工件的圆孔的工具,因其排屑槽成螺旋状而形似麻花而得名。麻花钻包括钻柄和钻体,钻体包括导向部和切削部,导向部上开有螺旋形的排屑槽。长时间打孔的话,需要从孔中退出麻花钻,以便在孔中加入冷却液;转动的麻花钻再次进入孔中,冷却液只能顺着排屑槽从下往上流动冷却钻体,冷却效果以待加强。
实用新型内容
本实用新型所要解决的技术问题是克服现有技术中的不足而提供一种麻花钻,冷却效果好。
本实用新型解决上述技术问题采用的技术方案是:一种麻花钻,包括钻柄和钻体,钻体包括导向部和切削部,导向部上开有螺旋形的排屑槽,特征在于:在所述的导向部上开有螺旋形的导流槽。
本实用新型所述的导流槽开在导向部的外表面上。
本实用新型与现有技术相比,具有如下优点和效果:结构设计合理,增设了导流槽,冷却液可以顺着排屑槽和导流槽两条路径从下往上流动冷却钻体,冷却效果好。
附图说明
图1为本实用新型实施例的结构示意图。
具体实施方式
下面结合附图并通过实施例对本实用新型作进一步说明。
参见图1,本实用新型实施例包括钻柄1和钻体2,钻柄1和钻体2为一个整体,由硬质合金制成。
钻体1包括导向部3和切削部4。在导向部3上开有螺旋形的排屑槽5。在导向部3的外表面上开有螺旋形的导流槽6,导流槽6的螺旋方向和排屑槽5的螺旋方向一致。
长时间打孔的话,需要从孔中退出麻花钻,以便在孔中加入冷却液;转动的麻花钻再次进入孔中,冷却液可以顺着排屑槽5和导流槽6两条路径从下往上流动冷却钻体2,冷却效果好。

Claims (2)

1.一种麻花钻,包括钻柄和钻体,钻体包括导向部和切削部,导向部上开有螺旋形的排屑槽,特征在于:在所述的导向部上开有螺旋形的导流槽。
2.根据权利要求1所述的麻花钻,其特征在于:所述的导流槽开在导向部的外表面上。
CN 201220236437 2012-05-24 2012-05-24 麻花钻 Expired - Fee Related CN202639431U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220236437 CN202639431U (zh) 2012-05-24 2012-05-24 麻花钻

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220236437 CN202639431U (zh) 2012-05-24 2012-05-24 麻花钻

Publications (1)

Publication Number Publication Date
CN202639431U true CN202639431U (zh) 2013-01-02

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ID=47408608

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220236437 Expired - Fee Related CN202639431U (zh) 2012-05-24 2012-05-24 麻花钻

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CN (1) CN202639431U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104999115A (zh) * 2015-08-12 2015-10-28 丹阳市超宇五金磨具有限公司 一种使用方便的麻花钻

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104999115A (zh) * 2015-08-12 2015-10-28 丹阳市超宇五金磨具有限公司 一种使用方便的麻花钻

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130102

Termination date: 20150524

EXPY Termination of patent right or utility model