【摘要】：對(duì)使用1 1/4-7UNC成組等徑直槽絲錐加工高硬金屬材料時(shí)會(huì)出現(xiàn)攻絲扭矩大,易扭斷并且加工螺紋精度低等問(wèn)題.為解決這一工藝難題,在對(duì)成組絲錐攻絲受力與扭矩分析的基礎(chǔ)上,決定對(duì)其進(jìn)行不等徑設(shè)計(jì).以減小攻絲扭矩和提高加工螺紋精度為目標(biāo),對(duì)其幾何參數(shù)進(jìn)行了優(yōu)化設(shè)計(jì).建立兩組絲錐三維實(shí)體模型,然后進(jìn)行有限元分析.將兩組絲錐分析出來(lái)的結(jié)果進(jìn)行對(duì)比,可以看出優(yōu)化后成組不等徑直槽絲錐結(jié)構(gòu)合理.并且加工出來(lái)的螺紋表面質(zhì)量,精度和使用壽命均有所提高.
[Abstract]:The problems such as high tapping torque, easy breaking and low precision of thread processing will occur when using 1 1/4-7UNC equal straight groove taps to process high hard metal materials. In order to solve this technical problem, based on the analysis of tapping force and torque of group tap, it is decided to design unequal diameter of tap. In order to reduce tapping torque and improve the precision of thread machining, the geometric parameters are optimized. Two groups of three-dimensional solid models of taps were established, and then finite element analysis was carried out. By comparing the results of the two groups of taps, it can be seen that the structure of the optimized taps with unequal straight grooves is reasonable. The surface quality, precision and service life of the threaded thread are improved.
【作者單位】： 大連交通大學(xué)機(jī)械工程學(xué)院;
【分類號(hào)】：TG722

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 韋盛豪;直槽絞刀前后角的測(cè)定及計(jì)算[J];機(jī)床與工具;1958年08期

2 胡世祥;;銑活塞直槽的簡(jiǎn)易機(jī)床[J];新技術(shù)新工藝;1992年02期

3 R壔輏;;直槽與螺旋槽烺，

本文編號(hào)：2413324