A lightweight backfill friction stir spot welding device relates to a friction stir welding device, which comprises a shell body and stirring needles, sleeves and jackets. A drive screw is arranged in the shell body. The drive screw is hollow bidirectional with the ratio of the upper pitch to the lower pitch equal to the inverse ratio of the cross-sectional area of the sleeve to the cross-sectional area of the stirring needle. The upper nut of the driving screw is connected with the sleeve by sleeve sleeve sleeve, bearing, first bearing frame and sleeve rolling spline nut; the lower nut of the driving screw is installed with a stirring needle shaft which can slide freely up and down in the driving screw and matches with sleeve rolling spline nut through the second bearing frame and bearing, and the lower end of the stirring needle shaft is connected with the sleeve rolling spline nut. The stirring needle is connected; the transmission shaft sleeve is connected with spline at the end of the stirring needle shaft; the first power source and the second power source are connected with the transmission shaft sleeve, and the second power source is connected with the transmission screw. The invention has the advantages of light structure, high system stability, high welding precision, good effect and long service life.
【技术实现步骤摘要】
一种轻量化回填式搅拌摩擦点焊装置
本专利技术涉及搅拌摩擦焊接
,详细讲是一种结构轻巧、系统稳定性高,焊接精度高、效果好,使用寿命长的轻量化回填式搅拌摩擦点焊装置。
技术介绍
随着社会对节能环保的日益重视,轻量化成为了汽车、动车等现代交通运输业以及航空航天等工业制造领域的发展方向。这使得轻质高强材料如铝合金、镁合金等的应用得到了越来越广泛的关注,但同时也对这些材料的连接技术提出了更高的要求。铝合金以其质量轻、强度高等优点,被大量广泛的应用于各行各业,尤其是汽车、航空业。目前,铝合金主要的连接方式为电阻点焊和铆接,但它们存在许多局限性和缺陷,制约了铝合金在工业领域的应用。搅拌摩擦点焊(FrictionStirSpotWelding,简称FSSW)技术应运而生,它是在搅拌摩擦焊(FrictionStirWelding,简称FSW)技术的基础上研究开发的一种新型的固相焊接技术。采用FSSW技术可以形成类似电阻点焊和铆接的搭接接头,并且具有接头质量高,焊接质量稳定,变形小以及高效节能等优点,有效的弥补了电阻点焊和铆接的缺陷。回填式搅拌摩擦点焊的出现又成功的解决了传统搅 ...
【技术保护点】
1.一种轻量化回填式搅拌摩擦点焊装置,包括外壳体及由搅拌针、袖套、夹套组成的搅拌头,夹套固定在外壳体下端部,袖套可上下滑动的套设于夹套内,搅拌针可自由转动及上下滑动的套设于袖套内,其特征在于外壳体内设有传动丝杠,传动丝杠为中空的双向丝杠;所述传动丝杠的螺杆上部的螺距与传动丝杠的螺杆下部的螺距之比等于袖套下部横截面面积与搅拌针下部横截面面积的反比;所述传动丝杠的上部螺母的下部设有袖套套筒,袖套套筒下端经轴承与第一轴承架相连,第一轴承架下部设有袖套滚动花键螺母,袖套滚动花键螺母下端与袖套相连;所述传动丝杠的下部螺母的下部设有第二轴承架,传动丝杠内设有可上下自由滑动的搅拌针轴,搅 ...
【技术特征摘要】
1.一种轻量化回填式搅拌摩擦点焊装置,包括外壳体及由搅拌针、袖套、夹套组成的搅拌头,夹套固定在外壳体下端部,袖套可上下滑动的套设于夹套内,搅拌针可自由转动及上下滑动的套设于袖套内,其特征在于外壳体内设有传动丝杠,传动丝杠为中空的双向丝杠;所述传动丝杠的螺杆上部的螺距与传动丝杠的螺杆下部的螺距之比等于袖套下部横截面面积与搅拌针下部横截面面积的反比;所述传动丝杠的上部螺母的下部设有袖套套筒,袖套套筒下端经轴承与第一轴承架相连,第一轴承架下部设有袖套滚动花键螺母,袖套滚动花键螺母下端与袖套相连;所述传动丝杠的下部螺母的下部设有第二轴承架,传动丝杠内设有可上下自由滑动的搅拌针轴,搅拌针轴经轴承安装在第二轴承架上,搅拌针轴为花键轴、与袖套滚动花键螺母配合,搅拌针轴下端与搅拌针相连;外壳体上设有上限位滑槽,袖套套筒上设有与上限位滑槽相配合的套筒限位块,袖套套筒上设有下限位滑槽,第二轴承架上设有与下限位滑槽相配合的轴承架限位块;传动丝杠上方的外壳体内设有传动轴套,搅拌针轴上端与传动轴套经花键连接、可上下滑动的设在传动轴套内...
【专利技术属性】
技术研发人员:王瑞,周利,张锦标,戚家铭,王琳,
申请(专利权)人:山东格物智能科技有限公司,
类型:发明
国别省市:山东,37
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