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我厂在加工螺套零件时(零件长度为230毫米,外径为24毫米,內径为19毫米,一端为M18×1的外螺紋,同軸度允差为0.01毫米),采用三爪卡盘或弹簧夹头均难达到工艺要求。为解决这个问題,根据弹性力学原理自行設計一种高精度的薄壁弹性体滾子夹具。它是依靠薄壁套筒受力后所产生的弹性变形来均匀地夹紧工件。工件的外表面是定位基准,故夹具的定心精度高。經使用效果良好,工件的同軸度可达
I plant parts in the processing of threaded parts (part length of 230 mm, an outer diameter of 24 mm, an inner diameter of 19 mm, one end of the M18 × 1 external thread, the coaxial tolerance of 0.01 mm), the use of three jaw chuck Or collet chuck are difficult to meet the process requirements. To solve this problem, according to the principle of elastic mechanics to design a high-precision thin-walled elastomer roller fixture. It relies on thin-walled sleeve by the elastic deformation generated by the force to evenly clamping the workpiece. The outer surface of the workpiece is the positioning of the benchmark, so the fixture of the centering accuracy. The use of good results, the re-accessibility of the workpiece