The multiple motion errors duringcircular interpolation of NC machine tools can be obtained by using double ball bar tester.
可用双球规测量装置测得数控机床圆弧插补运动的综合误差。
It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
Using two curves around the double Ball point to approach two given lines with 3 order precision is realized, which solves the problem of double straight line synthesis.
运用双重鲍尔点附近的两段曲线来逼近给定的两段直线，其逼近精度为3阶。
It was compared with that system consisting of double-ball amplifier and rodless hydraulic cylinder.
并与双钢球增力机构与无杆液压缸组成的液压夹具系统进行了比较。
It was compared with that system consisting of double-ball amplifier and rodless hydraulic cylinder.
并与双钢球增力机构与无杆液压缸组成的液压夹具系统进行了比较。
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