SU1237389A1 - Apparatus for grinding bearing race tracks - Google Patents

Description

The invention relates to a machine tool industry and can be used in the development of machine tools for the bearing industry.

The purpose of the invention is to improve the accuracy when nishfovaniya raceways on the rings of single riders due to the location of diamond holders, designed to edit the profile on the grinding wheel, n position, not changed with respect to the grandma of the product; each other along the axis of the pnipdel H1 grinding head.

FIG. presented device, general view; pas figs. 2 shows section A-A in FIG. I.

Grinding headstock 2 is rigidly fixed on frame 1 of which N1lzh} is installed, ovalpny circle 4. On the direction of your curtain 5 of base frame, base 6 is attached to which hydraulic drive 7 is connected, and a nut 8 is fixed , voya.modey -vstuk) P1, he with the lead screw 9, the latter is connected with the mechanism 10 mortise feed and compensation from the grinding wheel. On the ocHOBarnui 6, cross slides 11 and 12 of adjustment movements can be installed, carrying the workpiece headstock 13 with a magnetic cartridge 14 and radial bearings 5 for placing the workpiece 16 and longitudinal slide 17 with a read 18 on the latter. - P1teyn 20, on which the straightening mechanism is mounted in the form of a rotatable (HR) shaft 21 with a cylindrical diamond holder 22 directed toward the grinding wheel 4 from the headstock of the product 13.

0

five

0

The machine works as follows.

After straightening, the bracket 20 flip ;; turn clockwise until the diamond holder leaves the area between the part 16 and the grinding wheel 4, after which the hydraulic actuator 7 provides a quick movement of the base 6 to the right, moving the part to the wheel 4 and retraction of the straightening device. Further, the mechanism 10, rotating the screw 9, provides the feed of part 16 to the circle 4 and the removal of the specified allowance. After obtaining the specified size, the base 6 with the headstock of the product 13 is retracted to the left, the mechanism 10 reverses the screw 9 to the xOxU.Ho position, the finished part is replaced with the next workpiece and the cycle is repeated.

In the use case of the machine, it is envisaged to arrange the grinding heads and heads of the products: and at an angle to each other, for example, 90 °, as shown in FIG. 2, it is possible to grind the treadmill of the thrust ring of an arrow. When the spindle of the headstock is parallel to the grinding headstock spindle (for example, by turning the headstock of the product to the bearing contact angle (Fig. 2), it is possible to grind the treadmill of the radial ball bearing ring.

Thanks to the fact that, in the proposed machine, the diamond diamond holder in the straightening position always remains constant in relation to the workhead, an increase in the accuracy of the profile profile c of the lining wheel in respect to the part is achieved and, as a result, the machining accuracy increases treadmill details.

13

FIG. 2

(l) bettor I. Yermakova

Editor V. KovgunTehred I. VeresKorrektor S .. Cher.chi

Order 3234/15 Circulation 740 subscription

VNIIPI USSR State Committee

but dela.m inventions and discoveries

113035, Moscow, Ж-35, Raushsk nab., 4/5

Branch PPP "Patent, i-. Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR GRINDING ROADS OF BEARING RINGS, containing the headstock of the product and the grinding headstock, which are mounted movably relative to each other in the direction. perpendicular to the axis of the spindle of the grinding headstock, and their spindles are placed at an angle to each other, and the grinding headstock is placed between the headstock of the product and the dressing device with the dressing tool mounted on the swivel bracket, characterized in that. that, in order to improve accuracy when grinding raceways on thrust ball bearings rings. the headstock of the product and the grinding headstock are fixedly mounted relative to each other along the axis of the spindle of the grinding headstock, and the dressing device is mounted to move together with the headstock of the product in the direction perpendicular to the smallpox of the spindle of the grinding headstock. Fig! 1237389 A1