The invention discloses a special fixture for thin wall casing, which comprises a base, a copper sleeve, a sealing ring, oil pressure corner cylinder, a high-pressure oil import and export, the sealing ring groove and a bolt hole connected with the machine tool table, oil cavity copper sleeve inside the hydraulic cylinder is fixed on the upper surface of the base angle. When using the first base is fixed on the machine table bolt, then the copper sleeve is connected with the base, is installed on the casing after machining, hydraulic angle cylinder press, then go between the base and the copper sleeve oil chamber filled with hydraulic oil, high pressure copper sleeve after deformation of the processed by stepping up and location. Through the above way, the invention can effectively reduce the chattering phenomenon in the casing processing process, has the advantages of simple structure and convenient clamping, reduces the workpiece deformation caused by uneven clamping force, and improves the machining accuracy of the thin-walled casing. The invention can effectively reduce the deformation and vibration in the machining process of the thin-walled box, and thus improve the machining precision.
【技术实现步骤摘要】
一种薄壁机匣液压夹具
本专利技术涉及一种航空发动机制造
,具体为一种用于加工薄壁机匣的专用夹具。
技术介绍
航空发动机是飞机的核心部件,而机匣作为航空发动机的关键部件,属于典型的薄壁结构,零件最薄处仅2-3mm,其材料多为钛合金、高温合金等耐高温的难加工材料。薄壁机匣具有结构复杂、壁厚薄、刚性差、直径大等特点,加工时切削温度高、切削力大、刀具磨损严重而且容易产生振动和切削变形。由装夹不合理导致的工件振动及薄壁处变形是影响航空发动机机匣加工精度的主要因素。
技术实现思路
为了减小航空发动机机匣加工过程中产生的变形及颤振现象,本专利技术提出一种结构简单、刚性大,减震效果好的薄壁机匣专用夹具,利用该夹具可以减小加工变形、提高机匣的加工精度。为实现上述目的,本专利技术采用以下技术方案:薄壁机匣专用夹具包括底座、铜套、密封圈、油压转角缸,底座上有高压油进出口、密封圈槽以及与机床转台连接的螺栓孔,铜套上内侧有油腔,油压转角缸固定在底座上端面。使用时首先将底座用螺栓固定在机床转台上,其次将铜套与底座连接,装上被加工薄壁机匣后,然后用油压转角缸将其压紧,接着往底座与铜套之间的油 ...
【技术保护点】
一种薄壁机匣专用夹具,包括底座、铜套、密封圈、油压转角缸,底座上有高压油进出口、密封圈槽以及与机床转台连接的螺栓孔,铜套上内侧有油腔,油压转角缸固定在底座上端面。
【技术特征摘要】
1.一种薄壁机匣专用夹具,包括底座、铜套、密封圈、油压转角缸,底座上有高压油进出口、密封圈槽以及与机床转台连接的螺栓孔,铜套上内侧有油腔,油压转角缸固定在底座上端面。2.根据权利1所述的机匣液压夹具,其特性在于底座上设有进油口和...
【专利技术属性】
技术研发人员:不公告发明人,
申请(专利权)人:渭南高新区火炬科技发展有限责任公司,
类型:发明
国别省市:陕西,61
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