The invention relates to a rotary four corner thread chaser. A rotatable four angle thread comb knife, including a square body; the four corners of the square body are respectively set with a threaded comb; the threaded comb includes a fine tooth and a coarse tooth; the angle of the threaded comb from a fine tooth to a coarse tooth is 8 + 2 '. A rotatable four angle thread comb knife, designed to turn four corners, make full use of the tool material, and the angle of the cutting edge is 8 degrees. The angle edge can make the iron cuttings discharged smoothly, not the knife and the non stick knife; the width of the rough tooth blade is wider than the fine tooth, the cuttings are more fully, the receiving water is greater, the cooling effect is better and the cooling effect is better In order to improve the tool life, the free cutting mode is ensured by adjusting the bottom difference between the coarse tooth and the top tooth of the fine tooth, and the free cutting method is formed. The clamping is convenient and firm, the auxiliary time is saved, the labor intensity is reduced, the production cost is saved and the production efficiency is improved.
【技术实现步骤摘要】
一种可转四角螺纹梳刀
本专利技术涉及螺纹梳刀领域,特别是涉及一种可转四角螺纹梳刀。
技术介绍
目前在石油管螺纹加工车削领域,常用刀具都是三角形双面齿,和长方形单面齿,可转位的三角形螺纹梳刀,刀片应用率低,加工辅助时间增加,生产效率低。螺纹刀具材料是通常采用含有碳化钨碳化钽等贵重材料的硬质合金,价格高昂,现有刀具没有充分利用,造成资源浪费;传统螺纹梳刀采用斜拉杆拉紧方式,由于斜拉杆强度较低,加工时刀片容易松动,会造成尺寸不准确,刀具容易打刀。
技术实现思路
为解决上述技术问题,本专利技术提供了一种可转四角螺纹梳刀,设计为可转四角,充分利用刀具材料,开刃角度为8°,不打刀,不粘刀;排屑充分,降温效果好,提高了刀具寿命;通过调整粗齿和精齿齿顶齿底差优化切削分配,保证形成自由式切削方式;装夹方便、牢固,节省辅助时间,减轻劳动强度,节约生产成本,提高生产效率。本专利技术解决其技术问题所采用的技术方案是:一种可转四角螺纹梳刀,它包括正方形本体;所述正方形本体的宽度为19±0.05mm;所述正方形本体的四个角上分别设置有螺纹梳齿;所述螺纹梳齿包括精齿和粗齿;所述螺纹梳齿从精齿向粗齿 ...
【技术保护点】
一种可转四角螺纹梳刀,其特征在于:它包括正方形本体;所述正方形本体的宽度为19±0.05mm;所述正方形本体的四个角上分别设置有螺纹梳齿;所述螺纹梳齿包括精齿和粗齿;所述螺纹梳齿从精齿向粗齿向下倾斜的开刃角度为8°±2′,所述精齿左侧底部的圆角半径为0.412±0.02mm、齿尖的圆角半径为0.356±0.02mm、右侧底部的圆角半径与齿尖圆角半径相同;所述粗齿的齿尖的圆角半径为0.356±0.03mm;所述精齿相对于左侧底部的高度为1.392±0.01mm,粗齿的齿尖低于精齿的高度差为0.24±0.025mm,精齿的右侧底部低于左侧底部的高度差为0.079±0.01mm; ...
【技术特征摘要】
1.一种可转四角螺纹梳刀,其特征在于:它包括正方形本体;所述正方形本体的宽度为19±0.05mm;所述正方形本体的四个角上分别设置有螺纹梳齿;所述螺纹梳齿包括精齿和粗齿;所述螺纹梳齿从精齿向粗齿向下倾斜的开刃角度为8°±2′,所述精齿左侧底部的圆角半径为0.412±0.02mm、齿尖的圆角半径为0.356±0.02mm、右侧底部的圆角半径与齿尖圆角半径相同;所述粗齿的齿尖的圆角半径为0.356±0.03mm;所述精齿相对于左侧底部的高度为1.392±0.01mm,粗齿的齿尖低于精齿的高度差为0.24±0....
【专利技术属性】
技术研发人员:王军伟,
申请(专利权)人:昆山华辰精密工具有限公司,
类型:发明
国别省市:江苏,32
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