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CN201456151U - 四刃支罗钻 - Google Patents

四刃支罗钻 Download PDF

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Publication number
CN201456151U
CN201456151U CN2009201192249U CN200920119224U CN201456151U CN 201456151 U CN201456151 U CN 201456151U CN 2009201192249 U CN2009201192249 U CN 2009201192249U CN 200920119224 U CN200920119224 U CN 200920119224U CN 201456151 U CN201456151 U CN 201456151U
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CN2009201192249U
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张华�
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Abstract

本实用新型公开了一种四刃支罗钻。旨在提供一种结构简单、钻孔轻松、效率高的四刃支罗钻。它包括由锥形螺尖、主切削刃、副切削刃、刀体、螺旋沟槽和刀柄，其特征是所述的螺旋沟槽为四头，主切削刃和副切削刃各有四条，在每条副切削刃的前端制有高出主切削刃的圆周切削刃。该实用新型的优点是：由于螺旋沟槽为四头、主、副切削刃有四条，因此，切削和排屑速度快。钻孔时，在主切削刃切削前圆周切削刃已切割出孔的外圆周，钻出的孔壁光洁，因此可以又快又省力又能高质量地完成钻孔作业。

Description

四刃支罗钻
技术领域
本实用新型属于木材加工工具，特别涉及木工钻孔用的四刃支罗钻。
背景技术
目前所用的木工钻，大多是由螺尖、两条主切削刃、刀体及双头螺旋沟槽组成。但由于木工钻切削量大、进给速度快，对于较高的进给速度往往会发生排屑困难，钻削阻力大，钻体发热，工作效率低甚至孔壁烧焦的现象。
实用新型内容
本实用新型的目的是提供一种结构简单、钻孔轻松、效率高的四刃支罗钻。
为了达到上述要求，本实用新型是通过以下技术方案实现的：它包括由锥形螺尖、主切削刃、副切削刃、刀体、螺旋沟槽和刀柄，其特征是所述的螺旋沟槽为四头，主切削刃和副切削刃各有四条，在每条副切削刃的前端制有高出主切削刃的圆周切削刃。
该四刃支罗钻的优点是：由于螺旋沟槽为四头、主、副切削刃有四条，因此，切削和排屑速度快。钻孔时，在主切削刃切削前圆周切削刃已切割出孔的外圆周，钻出的孔壁光洁，因此可以又快又省力又能高质量地完成钻孔作业。
附图说明
图1是四刃支罗钻的主视图；
图2是图1的左视图。
图中：1、螺尖；2、主切削刃；3、副切削刃；4、刀体；5、螺旋沟槽；6、刀柄；7、定位沟槽；8、圆周切削刃。
具体实施方式
下面结合附图和具体实施例对本实用新型作进一步的描述。
图1、图2是四刃支罗钻的结构示意图。它包括由锥形螺尖1、四条主切削刃2、四条副切削刃3、刀体4、四头螺旋沟槽5和正六棱柱的刀柄6，刀柄5上制有周向的圆弧定位沟槽7。在每条副切削刃3的前端制有高出主切削刃2的圆周切削刃8。

Claims (3)

1.四刃支罗钻，它包括由锥形螺尖、主切削刃、副切削刃、刀体、螺旋沟槽和刀柄，其特征是所述的螺旋沟槽为四头，主切削刃和副切削刃各有四条，在每条副切削刃的前端制有高出主切削刃的圆周切削刃。
2.根据权利要求1所述的四刃支罗钻，其特征在于所述的刀柄为正六棱柱。
3.根据权利要求1所述的四刃支罗钻，其特征在于所述的刀柄上制有周向的圆弧定位沟槽。
CN2009201192249U 2009-05-05 2009-05-05 四刃支罗钻 Expired - Fee Related CN201456151U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201192249U CN201456151U (zh) 2009-05-05 2009-05-05 四刃支罗钻

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201192249U CN201456151U (zh) 2009-05-05 2009-05-05 四刃支罗钻

Publications (1)

Publication Number Publication Date
CN201456151U true CN201456151U (zh) 2010-05-12

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ID=42383504

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201192249U Expired - Fee Related CN201456151U (zh) 2009-05-05 2009-05-05 四刃支罗钻

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CN (1) CN201456151U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102490213A (zh) * 2011-08-19 2012-06-13 郫县森木刃具厂 四槽排钻

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102490213A (zh) * 2011-08-19 2012-06-13 郫县森木刃具厂 四槽排钻

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C14 Grant of patent or utility model
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EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhang Hua

Assignor: Jiashan Urus Tools Co., Ltd.

Contract record no.: 2010330002116

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Granted publication date: 20100512

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Record date: 20101105

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Assignee: Jiashan Urus Tools Co., Ltd.

Assignor: Zhang Hua

Contract record no.: 2010330002116

Denomination of utility model: Four-edge auger bit

Granted publication date: 20100512

License type: Exclusive License

Record date: 20101105

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