CN101003141B - 木工扁钻 - Google Patents

木工扁钻 Download PDF

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Publication number
CN101003141B
CN101003141B CN2006100379884A CN200610037988A CN101003141B CN 101003141 B CN101003141 B CN 101003141B CN 2006100379884 A CN2006100379884 A CN 2006100379884A CN 200610037988 A CN200610037988 A CN 200610037988A CN 101003141 B CN101003141 B CN 101003141B
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Prior art keywords
cutting
flat
woodworking
bit
drill
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CN2006100379884A
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CN101003141A (zh
Inventor
焦余华
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Jiangsu Feida Drills Co., Ltd.
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JIANGSU FEIDA DRILLS CO Ltd
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Abstract

本发明属于木工切削刀具，涉及一种木工扁钻。该木工扁钻由柄部和扁平的切削头两部分组成，切削头的前段呈等腰三角形，等腰三角形的两腰即为切削刃，在切削刃的侧面上开有自攻螺纹槽。本发明结构合理，加工方便，由于采用带有自攻螺纹槽的切削刃，使切削过程更加顺畅，减小了切削阻力、提高了切削效率，从而可大大延长其使用寿命。

Description

木工扁钻
技术领域
本发明属于木工切削刀具，涉及一种木工扁钻。
背景技术
现有的木工扁钻一般包括有一个扁平的切削头，切削头上的刃口形状各异，但大多存在着切削阻力大、排屑不畅、使用寿命低等缺陷。
发明内容
本发明所要解决的技术问题是，提供一种结构简单，切削阻力小、切削效率高、使用寿命长的木工扁钻。
本发明的木工扁钻由柄部和扁平的切削头两部分组成，切削头的前段呈等腰三角形，等腰三角形的两腰即为切削刃，在切削刃的侧面上开有自攻螺纹槽。在两切削靠近尖端的部分，还可设置一段没有自攻螺纹槽的平直段，作为切削导向段。
本发明结构合理，加工方便，由于采用带有自攻螺纹槽的切削刃，使切削过程更加顺畅，减小了切削阻力、提高了切削效率，从而可大大延长其使用寿命。
附图说明
图1是本发明一个实施例的结构示意图；
图2是图1的A向局部放大结构示意图；
图3是图1的B剖面结构示意图；
图4是本发明另个实施例的结构示意图。
具体实施方式
实施例一结构如图1～图3所示，该本工扁钻由圆柱形的柄部1和扁平的切削头2组成，切削头前段的一对切削刃3构成等腰三角形的两腰，切削刃的侧面上开有自攻螺纹槽4，即两切削刃的侧面是以扁钻中心线为轴心的同一段自攻螺纹的不同部分。
实施例二的结构如图4所示，该结构是在实施例一结构的基础之上，在靠近两切削刃交汇的尖端处，设置一段没有自攻螺纹槽的平直段5作为切削时的导向段。

Claims (1)

1.一种木工扁钻，由柄部（1）和扁平的切削头（2）两部分组成，其特征是：切削头的前段呈等腰三角形，等腰三角形的两腰即为切削刃（3）；在切削刃（3）的侧面上开有自攻螺纹槽（4）；在两切削靠近尖端的部分，设置一段平直段（5），作为切削导向段。
CN2006100379884A 2006-01-20 2006-01-20 木工扁钻 Expired - Fee Related CN101003141B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2006100379884A CN101003141B (zh) 2006-01-20 2006-01-20 木工扁钻

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2006100379884A CN101003141B (zh) 2006-01-20 2006-01-20 木工扁钻

Publications (2)

Publication Number Publication Date
CN101003141A CN101003141A (zh) 2007-07-25
CN101003141B true CN101003141B (zh) 2012-07-11

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CN2006100379884A Expired - Fee Related CN101003141B (zh) 2006-01-20 2006-01-20 木工扁钻

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CN (1) CN101003141B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672244A (zh) * 2012-04-01 2012-09-19 哈尔滨飞机工业集团有限责任公司 一种用于钻制台阶孔的复合扁钻头

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093395A (en) * 1977-03-14 1978-06-06 Mcdonnell Douglas Corporation Drill and combined drill countersink
CN2546166Y (zh) * 2002-06-24 2003-04-23 浙江万利工具集团有限公司 带螺尖铲形钻

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093395A (en) * 1977-03-14 1978-06-06 Mcdonnell Douglas Corporation Drill and combined drill countersink
CN2546166Y (zh) * 2002-06-24 2003-04-23 浙江万利工具集团有限公司 带螺尖铲形钻

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