SU406685A1 - DEVICE FOR ELECTROPOLATION OF THE GRAINS OF THE RINGS OF BALL BEARINGS - Google Patents

Description

This invention relates to the field of electrochemical dimensional processing of metals.

Devices are known for electropolishing and superfinishing of the grooves of the rings of ball bearings.

The disadvantage of these devices is the difficulty of providing a constant gap between the electrode and the surface to be treated.

In the proposed device, this disadvantage is eliminated due to the fact that the rotatable electrode holder and the movable electrode are provided with controlled detents of the positions of the electrode and the holder.

FIG. 1 shows the proposed device; pas figs. 2-6 shows the relative position of the electrode and the ring groove during operation

Ring} of the bearing mounted on the spindle 2. Launching bar 3 interacts with the groove of the ring and is fixed in the rocker arm кор 4. Electrode 5 slides in the holder 6, the trunnions 7 and 8 of which are mounted in bearings of the housing 9 fixed on the skid 10. And the latter are mounted on the base guide rolls L and connected to the lead screw 12 cooperate with them; and the nut 13, which is connected to the engine 14 by gears 15, 16 and 17.

Electrode 5 nodzhat to ring 1 by a spring 18.

The device is sputtered with electromagnetic clips 19 and 20, the first of which fixes the position of the electrode 5 in the holder 6, and the second fixes the position of the holder 6 in the housing 9.

After the ring is installed on the machine, the latches are released, the slider is slide, until the electrode contacts the surface to be treated and its spring 18 to it. If the axis of the trunnions lies in the plane of symmetry of the trough (see Fig. 2), the electrode is installed in the same plane.

Then, the electrode is fixed in the holder and the latter in the housing 9 with clamps and the slide of the slide 14, gears 15, 16 and 17 and screw pair 12, 13 is removed to the left by the value of the specified gap b (see Fig. 3). Begin electrolytic polishing. If the axles of the trunnions are offset from the plane of symmetry of the groove by distance / (see Fig. 4), the electrode, interacting with the groove of the ring, is set to the position shown in Fig. 5, while the holder is rotated relative to the housing axle.

Then, as in the case described earlier, the electrode is fixed in the holder, and the holder in the case is secured by retainers, after which the slide is retracted by a gap b. In this case (see Fig. 6), regardless of the rotation of the holder with the electrode in the housing, the size of the gap is constant, and the error in the size of the gap is incommensurable with the gap.

Subject invention

A device for electropolishing the grooves of the rings of the widened hems, containing a rotatable electrode holder mounted on the sled associated with the mechanism for adjusting the gap between the electrode and the groove, characterized in electrode and derl position.

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