CS276254B6 - Trueing diablock - Google Patents

Abstract

Problem of creating non-planar function grinding wheel fronts' bearing balls caused by uneven wear of dressing dian instruments solves prismatic dressing blocks, which may be on the dressing device arbitrarily turned around one of the clamping screw relative to the dressing direction. This can achieve local densification diamonds that make differences in wear of diamonds prevents and shoulder dressers it can be permanently fitted with blocks with at least two clamping holes.

Description

(57)

The problem of creating non-planarities of the functional face of the grinding wheels for grinding the bearing balls caused by the uneven wear of the dressing diantools solves prismatic dressing diablocks which can be rotated arbitrarily on the dressing device around one clamping screw relative to the dressing direction. In this way, local diamond densification can be achieved, which prevents differences in diamond wear and the dresser arm can be permanently fitted with diablocks with at least two clamping holes.

The invention relates to dressing diablocks, in particular for automatic swinging dressers of grinding wheels in the production of bearing balls.

In the prior dressing, the functional faces of the grinding wheels for the production of balls were used to fit the arm of an automatic dresser, e.g. No. 221123, standard rollers with powder natural diamonds. The rollers are soldered one to two pieces in a hexagonal holder. The diamond holder is screwed into the dresser arm. On the inside of the face of the grinding wheel, where there is insufficient space, the dressers are fitted with one holder. At the outer edge of the grinding wheel, the face is dressed with several holders, in which there are mainly two rollers. This is due to the need for more abrasive material. The disadvantage of this solution, as in the case of using other available diantools on dressing machines with short stroke of the dressing arm, is the differences in wear of the diantools on the inner and outer parts of the dressing surface. These differences result in an unevenness of the dressing face, which in turn reduces the life of the diantools. Due to the lack of space, the problem cannot be solved by additional additional holders with diantools or by increasing the stroke of the dresser arm.

The disadvantages of the prior art are substantially eliminated by the dressing diaphragm according to the invention, which is characterized in that it has a square cross section with at least one clamping bore, the functional surface having a length of 3 to 5 times its width. The clamping bore may be one in the middle of the functional surface or at least two holes for permanent mounting.

Dressing diablocks conform to the desire to minimize dressing equipment, but above all make it possible to ensure uniform dressing of the grinding wheels throughout their functional face. The solution also saves diamonds and can be used both natural and synthetic diamond.

The solution will be elucidated in terms of constructional and functional using a sketch showing schematically the arrangement of dressing diablocks on the arm of the auto dresser.

The dressing block 1 to 4 according to the invention has a square cross section. It is provided with at least one clamping bore. The functional area has a length of three to five times its width. Diablocks 1 and 2 are approximately parallel. Diablocks 3 and 6 are rotated relative to them by approximately 90 °. In the first stage of dressing, diablocks with one central clamp perpendicular to the functional surface are used. The distance between diablocks varies according to the local diamond loss. The position and number of blocks are corrected only after a uniform diamond loss has been achieved over the entire dressing face of the grinding wheel 6. Thereafter, the automatic retraction arm of the multiple clamping diablocks is permanently mounted, whose position can no longer be changed.

For the dressing diablock arrangement according to the sketch when dressing grinding wheels with an external diameter of 800 mm, suitable are eg 22 mm wide diablocks, 93 mm long with a clamping bore of 0 12 mm, to determine the optimal distribution of diantools on the dressing arm. Four diablocks are used for one step. Diablocks 16 mm wide, total length 85 mm are suitable for permanent installation. These diablocks have two clamping holes. There are six on the dresser arm.

Claims (3)

PATENTOVÉ Claims 1. A dressing diaphragm, in particular for automatic swinging dressers for grinding wheels in the production of bearing balls, characterized in that it has a square cross section with at least one chucking opening, the functional surface having a length of 3 to 5 times its width. 2. The dressing diaper according to claim 1, characterized in that it has one clamping bore in the center of the functional surface perpendicular to this surface. 3. The dressing diaper according to claim 1, characterized in that it has at least two clamping holes.