RV减速器行星架主要参数在线检测研究

针对行星架轴承安装孔的孔组位置度、平行度、孔径尺寸和圆度公差在线检测,提出一种快速检测的方法来实现多传感器对行星架关键尺寸进行测量。以行星架外圆为定位基准,采用接触式电感传感器对孔组位置度和平行度误差进行检测;根据被测孔径特点,采用非接触气动测量方式实现对行星架轴承安装孔内径和圆度的快速评定的方案,详细分析了各参数的评价方法。通过对研制出的样机与三坐标测量机的测量结果进行实验比对,实现孔组的位置度误差<3μm、孔径及圆度误差<2μm、平行度误差<1μm和整机测量节拍<1 min,结果表明本系统的测量方法和评定算法准确可靠,满足企业在线生产需要。

Research on On-Line Detection of Main Parameters of RV Reducer Planet Carrier

Aiming at the on-line detection of the position, parallelism, aperture size and roundness tolerance of the hole-set of the planet carrier bearing mounting hole, a method for rapid detection of key dimensions using a multi-sensor measurement system is proposed. Taking the outer circumference of the planet carrier as the reference, a contact type inductance sensor was used to detect the errors of the position and parallelism of the holeset. According to the characteristics of the measured aperture, the non-contact pneumatic measurement was used to quickly evaluate the inner diameter and roundness of the mounting hole of the planet carrier. The evaluation methods of each parameter were analyzed in detail. By comparing the experimental results of the developed prototype and CMM, the hole position error is less than 3μm, the aperture and roundness error is less than 2μm, the parallelism error achieved less than 1μm, and the whole measurement time is less than 1 min. The results show that the measurement methods and assessment algorithms of this system are accurate and reliable, which can meet the actual online production needs of the company.