The utility model relates to a laser welding fixture for gear assembly of transmission, which is characterized in that the light-shielding block is located above the square groove of the engagement teeth of the gear assembly or inserted into the square groove, and the light-shielding block can block the laser beam, prevent the laser beam from entering the inside of the square groove, avoid the laser beam heating and melting the inner wall of the groove, and press the engagement teeth tightly on the upper positioning pressure plate. The lower positioning pressure plate is used to press the gear, the upper positioning pressure plate and the lower positioning pressure plate are both machined with bolt holes, which are connected by bolts and nuts, so as to press the joint teeth and gears, prevent the relative movement of the two in the laser welding process, and control the welding deformation. The light blocking block is positioned above the square groove or inserted into the square groove. Through the fixture, the multi section welds that meet the requirements can be obtained under the condition that the output condition of the laser beam is unchanged. The fixture not only has the function of controlling welding deformation, but also can ensure that the square groove of the joint teeth is not affected by laser. It meets the needs of multi-section welding seam. It has the characteristics of low investment and accurate control of welding seam.
【技术实现步骤摘要】
一种变速器齿轮总成激光焊接夹具
本技术涉及一种变速器齿轮总成激光焊接夹具。
技术介绍
随着变速器技术的不断进步,其核心结构齿轮总成的设计、加工也趋于多样化、精细化,由此对齿轮总成的焊接技术提出了更高的要求。本专利技术涉及的变速器齿轮总成采用了激光焊接技术,但对该工艺提出了苛刻的要求,主要体现在齿轮总成接合齿的方槽内不允许有焊缝,以满足方槽的加工精度。为实现该技术要求,必须采用多段焊缝焊接。由于激光加工设备的技术局限性,通过控制激光束能量输出很难得到方槽不受激光影响的多段焊缝。
技术实现思路
本技术的目的在于提供一种变速器齿轮总成激光焊接夹具,其通过夹具即可在激光束输出条件不变的情况下获得满足要求的多段焊缝。该夹具不仅具有控制焊接变形的功能,还能够保证接合齿的方槽不受激光影响,满足了多段焊缝需求,具有资金投入低、焊缝控制精确的特点。本技术的技术方案是这样实现的:一种变速器齿轮总成激光焊接夹具,包括上定位压盘、下定位压盘、螺栓、螺母,其特征在于:挡光块位于齿轮总成接合齿的方槽上方或插入方槽内,挡光块能够阻挡激光束,防止激光束射入方槽内部,避免激光束加热熔化方槽内壁;上定位 ...
【技术保护点】
1.一种变速器齿轮总成激光焊接夹具,包括上定位压盘、下定位压盘、螺栓、螺母,其特征在于:挡光块位于齿轮总成接合齿的方槽上方或插入方槽内,挡光块能够阻挡激光束,防止激光束射入方槽内部,避免激光束加热熔化方槽内壁;上定位压盘压紧接合齿,下定位压盘压紧齿轮,上定位压盘与下定位压盘均加工有螺栓孔,通过螺栓、螺母进行连接,并达到压紧接合齿与齿轮的目的,防止两者在激光焊接过程中发生相对移动,并控制焊接变形,挡光块位于方槽上方或插入方槽内。
【技术特征摘要】
1.一种变速器齿轮总成激光焊接夹具,包括上定位压盘、下定位压盘、螺栓、螺母,其特征在于:挡光块位于齿轮总成接合齿的方槽上方或插入方槽内,挡光块能够阻挡激光束,防止激光束射入方槽内部,避免激光束加热熔化方槽内壁;上定...
【专利技术属性】
技术研发人员:魏伟,陈明,李潇一,郑培和,张敏,高建昊,孔德举,张林阳,刘春柏,姚远,喻皓淳,
申请(专利权)人:中国第一汽车股份有限公司,
类型:新型
国别省市:吉林,22
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