CN201456150U - 双刃双翼支罗钻 - Google Patents

双刃双翼支罗钻 Download PDF

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Publication number
CN201456150U
CN201456150U CN2009201192234U CN200920119223U CN201456150U CN 201456150 U CN201456150 U CN 201456150U CN 2009201192234 U CN2009201192234 U CN 2009201192234U CN 200920119223 U CN200920119223 U CN 200920119223U CN 201456150 U CN201456150 U CN 201456150U
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double
cutting edges
edged
auger bit
main cutting
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CN2009201192234U
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张华�
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Abstract

本实用新型公开了一种双刃双翼支罗钻。旨在提供一种结构简单、钻孔精度高的双刃双翼支罗钻。它包括由锥形螺尖、两条主切削刃、刀体、双头螺旋沟槽和刀柄，其特征是在刀体前端的外圆上制有高出主切削刃的两个圆周切削刃。该双刃双翼支罗钻在钻削时，由于刀体前端的外圆有双翼的圆周切削刃，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作业。

Description

双刃双翼支罗钻
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双刃双翼支罗钻。
背景技术
目前所用的木工钻，大多是由螺尖、主切削刃、刀体及螺旋沟槽组成，螺尖起中心定位的作用，还会产生一个向前的拉力，使钻头自动进给，减轻了劳动强度。切削由主切削刃承担，木屑经螺旋沟槽拍出，由于主切削刃在木工钻的轴向，孔的外缘无切削刃口，因此在近孔壁的木料实际是被撕裂下来的，用该种木工钻加工的孔壁粗糙，尺寸精度低，钻孔时阻力大、工作效率低。
实用新型内容
本实用新型的目的是提供一种结构简单、钻孔精度高的双刃双翼支罗钻。
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、两条主切削刃、刀体、双头螺旋沟槽和刀柄，其特征是在刀体前端的外圆上制有高出主切削刃的两个圆周切削刃。
根据上述方案制造的双刃双翼支罗钻，在钻削时，由于刀体前端的外圆有双翼的圆周切削刃，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作业。
附图说明
图1是双刃双翼支罗钻的主视图；图2是图1的左视图。
图中：1、螺尖；2、主切削刃；3、刀体；4、双头螺旋沟槽；5、刀柄；6、定位沟槽；7、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是双刃双翼支罗钻的结构示意图。包括由锥形螺尖1、两条主切削刃2、刀体3、双头螺旋沟槽4和正六棱柱刀柄5，刀柄5上制有周向的圆弧定位沟槽6。在刀体3前端的外圆上制有高出主切削刃2的两个圆弧形的圆周切削刃7。

Claims (4)

1.双刃双翼支罗钻，包括由锥形螺尖、两条主切削刃、刀体、双头螺旋沟槽和刀柄，其特征是在刀体前端的外圆上制有高出主切削刃的两个圆周切削刃。
2.根据权利要求1所述的双刃双翼支罗钻，其特征在于所述的圆周切削刃为圆弧形。
3.根据权利要求1所述的双刃双翼支罗钻，其特征在于所述的刀柄为正六棱柱。
4.根据权利要求1所述的双刃双翼支罗钻，其特征在于所述的刀柄上制有周向的圆弧定位沟槽。
CN2009201192234U 2009-05-05 2009-05-05 双刃双翼支罗钻 Expired - Fee Related CN201456150U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201192234U CN201456150U (zh) 2009-05-05 2009-05-05 双刃双翼支罗钻

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Application Number Priority Date Filing Date Title
CN2009201192234U CN201456150U (zh) 2009-05-05 2009-05-05 双刃双翼支罗钻

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CN201456150U true CN201456150U (zh) 2010-05-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659963A (zh) * 2013-12-12 2014-03-26 浙江野牛工具有限公司 手机两用木工钻

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659963A (zh) * 2013-12-12 2014-03-26 浙江野牛工具有限公司 手机两用木工钻

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C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhang Hua

Assignor: Jiashan Urus Tools Co., Ltd.

Contract record no.: 2010330002116

Denomination of utility model: Double-edged and double-wing Auger bit

Granted publication date: 20100512

License type: Exclusive License

Record date: 20101105

EE01 Entry into force of recordation of patent licensing contract

Assignee: Jiashan Urus Tools Co., Ltd.

Assignor: Zhang Hua

Contract record no.: 2010330002116

Denomination of utility model: Double-edged and double-wing Auger bit

Granted publication date: 20100512

License type: Exclusive License

Record date: 20101105

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