Detection apparatus of tool escape groove and detection method thereof

Abstract

The invention discloses a detection apparatus of a tool escape groove and a detection method thereof. The detection apparatus comprises a pedestal, a mandrel, and a detection plate. The pedestal is sleeve with a flange arranged at one end of the sleeve; the sleeve is in a shape of a hollow cylinder; and a notch is formed in the sleeve along the axial direction. The mandrel is arranged in the sleeve; guide rails cooperating with each other are arranged at the outer side of the mandrel and the inner side of the sleeve; and a first through hole and second through holes are formed in the inside of the mandrel along the radial direction, wherein the first and second through holes are perpendicular to each other, the second through hole pass through the first through hole, and two second through holes are arranged. The detection plate passes through the notch of the sleeve and the first through hole of the mandrel; bolts pass through fixation holes and the second through holes to enable the detection plate and the mandrel to be fixedly connected; and the bolt heads are in contact with the detection plate directly. A measurement angle is formed at the detection plate and is located at the outer side of the sleeve. According to the detection apparatus and detection method, the dimension and position of the tool escape groove can be detected rapidly and accurately; and the yield and service life of the bearing can be improved.

Description

technical field [0001] The invention relates to the technical field of undercut grooves of bearing outer rings, in particular to a tool undercut detection device and a detection method thereof. Background technique [0002] For ordinary mechanical parts, the position and size of the undercut groove may not be very important, but for the undercut groove of the bearing ring, the position and size are particularly important, especially for the outer ring of the hydraulic pump bearing with a relatively thin wall. It is not convenient for contact measurement, which often causes deep grooves, shallow grooves, and uneven groove positions during production. Because the wall thickness of the hydraulic pump bearing is very thin, the ribs are relatively narrow, and the groove is deep, and the strength of the ribs becomes lower. During the assembly process It is easy to drop the edge (that is, break); if the groove is shallow or the position is wrong, it is easy to produce small steps a...

AI Technical Summary

Problems solved by technology

[0002] For ordinary mechanical parts, the position and size of the undercut groove may not be very important, but for the undercut groove of the bearing ring, the position and size are particularly important, especially for the outer ring of the hydraulic pump bearing with a relatively thin wall. It is not convenient for contact measurement, which often causes deep grooves, shallow grooves, and uneven groove positions during production. Because the wall thickness of the hydraulic pump bearing is very thin, the ribs are relatively narrow, and the groove is deep, and the strength of the ribs becomes lower. During the assembly process It is prone to edge drop (that is, fracture); the groove is shallow or the position is wrong, and small steps are likely to occur after grinding, or the undercut groove is exposed, and the needle roller is held after assembly, causing the bearing to rotate unsmoothly or report the shaft

Every year, a large number of bearing repairs and scraps are caused by the problem of the undercut groove. At present, there is no device to detect the position and size of the undercut groove. Usually, workers make visual inspections based on experience. Due to visual inspections, there must be deviations, so the bearings are damaged. Problems with high scrap rate and short service life

Images