CN204686225U - 变角度螺旋槽丝锥 - Google Patents

变角度螺旋槽丝锥 Download PDF

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CN204686225U
CN204686225U CN201520391655.6U CN201520391655U CN204686225U CN 204686225 U CN204686225 U CN 204686225U CN 201520391655 U CN201520391655 U CN 201520391655U CN 204686225 U CN204686225 U CN 204686225U
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龚兴
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XIAMEN YUANXING PRECISION TOOL CO Ltd
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XIAMEN YUANXING PRECISION TOOL CO Ltd
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Abstract

本实用新型是一种螺旋槽丝锥，特别是一种变角度螺旋槽丝锥，其包括柄部和刃部，刃部的外径大于柄部的外径，刃部上设有多个排屑槽，排屑槽呈螺旋形，其特征在于：排屑槽的前段与轴线的夹角为β，排屑槽的后段与轴线的夹角为γ，且β>γ，排屑槽呈前段粗后段细的槽状，排屑槽底部的断面呈圆弧形，切屑通过排屑槽向后排出；所述β为35度，γ为23度。由于排屑槽设计成变角度，使排屑槽呈前段粗后段细的槽状，所以在切削时可提高对后段排屑的轴向分力，使后段排屑槽能够有效地控制切屑流向，使切屑沿着排屑槽后段顺利快速流出，加上圆弧形的槽底可减少切屑流动的阻力，从而避免了由于切屑堵塞而损坏丝锥的恶果。

Description

变角度螺旋槽丝锥
技术领域
本实用新型是一种螺旋槽丝锥，特别是一种变角度螺旋槽丝锥。
背景技术
现有的螺旋槽丝锥，如图1所示，其包括柄部1和刃部2，刃部2的外径大于柄部1的外径，刃部2上设有多个排屑槽3，排屑槽3呈螺旋形，排屑槽3与轴线形成一个恒定的夹角α，排屑槽3呈粗细一致的槽状，排屑槽3底部的断面呈U形，切屑通过排屑槽3向后排出。由于排屑槽3呈粗细一致的槽状，所以切屑缺乏由前向后的推力，加上排屑槽3底部的U形断面，更加重了排屑的阻力，造成切屑粘连在槽底，导致丝锥受损而无法使用。
发明内容
本实用新型的目的是为了克服现有螺旋槽丝锥由于排屑不畅而损坏丝锥的缺陷，发明一种可使切屑快速排出避免丝锥受损的变角度螺旋槽丝锥。
本实用新型的目的是按如下的方式来实现的：所述变角度螺旋槽丝锥，包括柄部和刃部，刃部的外径大于柄部的外径，刃部上设有多个排屑槽，排屑槽呈螺旋形，其特征在于：排屑槽的前段与轴线的夹角为β，排屑槽的后段与轴线的夹角为γ，且β>γ，排屑槽呈前段粗后段细的槽状，排屑槽底部的断面呈圆弧形，切屑通过排屑槽向后排出。
所述β为35度，γ为23度。
本实用新型的积极效果如下：由于排屑槽设计成变角度，使排屑槽呈前段粗后段细的槽状，所以在切削时可提高对后段排屑的轴向分力，使后段排屑槽能够有效地控制切屑流向，使切屑沿着排屑槽后段顺利快速流出，加上圆弧形的槽底可减少切屑流动的阻力，从而避免了由于切屑堵塞而损坏丝锥的恶果。
附图说明
图1是现有螺旋槽丝锥结构图
图2是本实用新型结构图
图中：1柄部              2刃部            3排屑槽。
具体实施方式
如图2所示。所述变角度螺旋槽丝锥，包括柄部1和刃部2，刃部2的外径大于柄部1的外径，刃部2上设有多个排屑槽3，排屑槽3呈螺旋形，其特征在于：排屑槽3的前段与轴线的夹角为β，排屑槽3的后段与轴线的夹角为γ，且β>γ，排屑槽3呈前段粗后段细的槽状，排屑槽3底部的断面呈圆弧形，切屑通过排屑槽3向后排出。
所述β为35度，γ为23度。
本实用新型用于加工内螺纹孔。本实用新型可以有不同数量的排屑槽，排屑槽可以有不同大小的螺旋角度β和γ。针对不同的加工对象，可选用相匹配的丝锥，使其更好地向后排屑，避免切屑向后拉伤已加工好的螺纹表面。由于丝锥的前段排屑槽有着较大的螺旋角度，所以加大了向后排屑的轴向分力，使排屑更加顺利，而后段排屑槽螺旋角度减小，使排屑的速度加快，螺纹攻丝的效果更为显著。经过试验，在加工不锈钢等粘性材料过程中，现有的螺旋槽丝锥很容易粘料而拉伤已加工好的螺纹表面，损伤丝锥牙形，而本实用新型能顺利向后排屑，切屑呈螺旋状快速流出，不仅提升加工件的品质，还大大提高丝锥的使用寿命。

Claims (2)

1.一种变角度螺旋槽丝锥，包括柄部和刃部，刃部的外径大于柄部的外径，刃部上设有多个排屑槽，排屑槽呈螺旋形，其特征在于：排屑槽的前段与轴线的夹角为β，排屑槽的后段与轴线的夹角为γ，且β>γ，排屑槽呈前段粗后段细的槽状，排屑槽底部的断面呈圆弧形，切屑通过排屑槽向后排出。
2.根据权利要求1所述的变角度螺旋槽丝锥，其特征在于：所述β为35度，γ为23度。
CN201520391655.6U 2015-06-09 2015-06-09 变角度螺旋槽丝锥 Active CN204686225U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108971671A (zh) * 2017-05-31 2018-12-11 肯纳金属公司 具有连续增大的螺旋角的螺旋槽丝锥
CN114101815A (zh) * 2021-11-10 2022-03-01 台州中驰智谷科技有限公司 一种螺旋槽丝锥

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108971671A (zh) * 2017-05-31 2018-12-11 肯纳金属公司 具有连续增大的螺旋角的螺旋槽丝锥
CN114101815A (zh) * 2021-11-10 2022-03-01 台州中驰智谷科技有限公司 一种螺旋槽丝锥

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