Grinding process method for surface-blackening outer ring raceway of cross bearing

Abstract

The invention relates to a grinding process method for a surface blackening outer ring raceway of a cross bearing. A blackening outer ring, a grinding wheel, a connecting ring, a screw, an end face support and a circumferential support are adopted; and the grinding process method comprises the following steps of: firstly, concentrically and fixedly connecting the blackening outer ring and the connecting ring by using the screw, placing them on a grinding machine electromagnetic centerless clamp, and leaning the end face of the connecting ring on an end face support of a centerless clamp; supporting the circumferential support on the outer circle of the connecting ring, and then grinding a roller path of the blackening outer ring through high-speed rotation of a grinding wheel; after machining is finished, only the raceway surface of the machined blackening outer ring being a required high-precision grinding surface; original blackening surfaces being completely reserved on other surfaces; and obvious supporting scratches capable of being reserved on the surface of the outer circle of the connecting ring, and the connecting ring capable of being repeatedly used. When the process method is adopted to grind the blackened outer ring raceway, the machining precision of the blackened outer ring raceway is high; and the blackening surface of the blackening outer ring cannot be damaged, and the appearance aesthetic feeling of a blackening product or the service life of the blackening product in a corrosion-resistant environment cannot be affected.

Description

technical field [0001] The invention relates to a bearing raceway grinding process, in particular to a grinding process method for a cross bearing surface blackened outer ring raceway. Background technique [0002] The crossed roller bearing is a special kind of bearing. Its inner and outer ring raceways are at an angle of 45° to the axis. Cylindrical rollers with a mutual angle of 90° are alternately placed between the raceways, which can bear radial load and two directions. The axial load and overturning moment are equivalent to the combination of two sets of angular contact bearings with contact angle a=45° installed back to back. It is especially suitable for installation on the waist, back and other joints of industrial robots. [0003] According to the environmental requirements of the application (corrosion resistance or aesthetics), cross roller bearings require special treatment, such as blackening the surface of the inner and outer rings. The products after black...

AI Technical Summary

Problems solved by technology

The products after blackening treatment are not processed by raceway grinding, which will have a great impact on the accuracy and assembly of the products

Images