3MZ329超精机原设计采用502粘结剂将支承圈粘结在支承体上,如图1所示.由于设计不合理,粘结强度不够,在使用过程中支承圈发生磨损以至掉出.针对上述情况,我们进行了改进,采用图2所承的整体结构,并在前端面均匀地开了9个槽,并焊入磨乎后研光的硬质合金小块(R_a=一0.16μm).这种结构,不仅耐磨,而且不会脱落,从而提高了使用寿命,保证了产品质量. 3MZ329 super precision machine original design using 502 adhesive to support the ring bonded to the support, as shown in Figure 1. Due to the design is not reasonable, the bond strength is not enough, in the course of bearing ring wear or even fall out. In the above cases, we made improvements to adopt the overall structure as shown in Fig. 2, and opened 9 grooves uniformly on the front end face and welded hard-nipped cemented carbide pieces (R a = 0.16 μm) This structure, not only wear - resistant, but also will not fall off, thus improving the service life and ensure product quality.