SU667381A1 - Rotary dividing table - Google Patents

Description

(54) TURNING BUSINESS TABLE

one

The invention relates to the field of machine tools.

Known rotary-dividing tables, comprising a housing, a faceplate with a rotational drive and a locking mechanism made in the form of a plunger and two flat gears, one of which is located on the plunger, and the other is stationary in the axial direction 1.

The purpose of the invention is to increase the reliability and accuracy of division.

For this, the table is provided with a gear, clutch, made in the form of a female element and two elements mating with it, the female element being located on the plunger, one mating element being located on the plate and the other one connected with its rotational drive.

FIG. 1 shows the proposed table, top view; in fig. 2 is the same; the section along A-A in FIG. one; in fig. 3 is the same, the section along BB in FIG. 2; in fig. 4 is the same, the section along BB in FIG. one; in fig. 5 is the same section along G-D in FIG. one.

The rotary dividing table has a body 1 with a glass 2 fixed in it, an axis 3 passes through the glass, rigidly connected to the plate 4, which rests on a fixed flat gear 5 rigidly connected to the body 1. On the glass 2 sits a half-coupling half, 6 rigidly connected to the worm gear 7. The covering half coupling 8 is fixed on the plunger 9, on which the movable flat wheel 10 is also fixed. The half coupling 8 is constantly in engagement with the half coupling 11 rigidly connected to the plate 4. The worm wheel 7 is constantly on odits meshed with the worm 12 fixed on the drive shaft 13, e.g., 14 schtiftami.

On the plate 4, the pin 15 is rigidly fixed, the conical part of which is located in the conical socket of the sleeve 16, pressed into the plunger 9. In the faceplate 4 an annular T-slot is cut, which includes the heads of the bolts 17 and bearing washers 18. Each bolt 17 is connected to a nut 19, lashing up a spherical bearing surface and resting on the rod 20, mounted in the sleeve 21. The sleeve 21 is closed by a cover 22 with a fitting. Between the nut 19 and the wheel 5 there is a package of disc springs 24, creating a force to clamp the working part 4.

A compression spring 25 is installed between the plastic tube 4 and the wheel 10.

The proposed table works as follows.

The springs 25 hold the plunger 9 in a position where the wheel 10 does not engage with the wheel 5, and the coupling half 8 is engaged simultaneously with the coupling half 6 and the coupling half 11. The oil 23 is fed under pressure 23 to the hydraulic clips and through the nuts 20, nuts 19 and the bolts 17 are removed; forces the clamping of the faceplate 4 through the washers 18. The shaft 13 begins to rotate, the torque is transmitted to the worm 12 to the worm gear 7 and then through the coupling halves 6, 8 and 11 to the plate 4.

At the end of the rotation of the shaft 13 and the rotation of the faceplate 4 at a predetermined angle, the final precise installation and fixation of the faceplate 5 occurs. In this case, the oil is supplied, iodine pressure into the cavity formed by the worm gear 7 and the coupling half 6, the plunger 8 rises, the coupling half 8 disengages semi-clutch 6, the wheel 10 enters into engagement with the wheel 5, while the finger 15 fits snugly into the coin part of the hub 16, selecting gaps in the gear joints.

After a precise installation of the working part 4, the oil is started to drain through the fittings 23, and the packages of the cup springs 24 clamp the plate 4.

Claims (1)

1. Patent of Great Britain No. 1266942 cl. In 3 In 17/02, published. 1972 fu2.3  fuz.f Riga 5