SU1202829A1 - Device for two-sided polishing of discs - Google Patents

Description

The invention relates to the field of finishing machining of flat parts and can be used for polishing magnetic disks of memory devices.

The purpose of the invention is to increase the productivity and quality of polishing by providing surface treatment of the disc without additional reinstallation.

FIG. 1 shows the devices in front view; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a view of FIG. one.

- A device for double-sided polishing of discs contains a drive for moving a disc with spindle 2. Spindle 2 has a flat triangle 3 with a slot 4 that fits on retainer 5. Vertices 6 of the triangle 3 mounted on the disc inside the curvature of the inner diameter 3 are mounted. The disk 7 is made. The rotation of the tools is carried out from the actuator 9 through the self-aligning clutches 10 and the levers 11. The levers are connected to the polishing force adjustment mechanism 12.

The device works as follows.

in a way.

The vertices 6 of the triangle 3, located opposite the slot 4, are displaced in the direction of symmetry of the axis of the slot, and triangle 3

They are poured into the inner holes of the disc 7. Due to the elastic properties of the triangular 3, its tops 6 return to their original position and rest against the surface of the inner diameter of the disc.

Since the vertices 6 of the triangle 3 are made along the profile of the inner diameter of the disk 7, the triangle is fixed in the hole of the disk. A disc 7 with a triangle 3 is mounted on the spindle 2 so that a retainer 5 enters the notch of the triangle, which is mounted eccentrically on the spindle 2. The rotational movement of the disc is transmitted from the drive 1 through the spindle 2 and the flat triangle 3, into the recess of which is the retainer 5. After enabling the rotation of the disc to it by means of the polishing force adjustment mechanism 12, the tools 8 are supplied and their rotational movement is activated, which is transmitted from the actuator 9 through the levers 11 and the self-aligning clutches 10. Tools 8 raschayuts in the opposite direction relative to each other. The 1O self-aligning couplings install the tools 8 relative to the polished disc 7.

After polishing is finished, the tools 8 are retracted, the disk 7 with triangle 3 is removed from spindle 2, after which the triangle 3 is inserted from disk 7 and another disk is attached to it.

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Editor A. Sabo

Compiled by A.Drozdetsky Tehred O.Vashchishina

Order 8362/17 Circulation 768 Subscription

VNIIGSh of the USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, Proektna St., 4

FIG.

Proofreader V. But ha

Claims (1)

t (5.4) DEVICE FOR TWO-WAY POLISHING OF DISKS, containing a frame with a product spindle mounted on it and two mounted coaxially to each other with the possibility of axial movement of tool spindles, the axis of which is parallel to the product spindle axis, characterized in that, in order to increase productivity and polishing quality , the device is equipped with a latch fixed to the end of the spindle of the product, located eccentrically relative to its axis, and a flat triangle with rounded peaks designed to I contact with the inner surface of the disk and with the radial slot made in it, in which the latch is located.