SU1202723A1 - Turret rest with horizontal shaft of turret head - Google Patents

Description

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The invention relates to machine tool construction and can be used in turret lathes,

The aim of the invention is to increase the reliability and accuracy of fixation by increasing the rigidity of the fixation mechanism.

FIG. 1 shows a turret caliper; in fig. 2 shows a section A-A in FIG. Fig. 3 is a diagram of the interaction of gear rims; in fig. 4 - section b-B in FIG. 2.

The turret caliper includes a housing 15 in which a shaft 2 with a turret 3 is mounted on the supports. The cylindrical radial and thrust ball bearings 4 and 5 are installed in the front bearing. The angular contact ball bearing 6 is mounted on the rear support, Gear 7 is rigidly fixed on the shaft 2, associated with the rotation drive of the turret (not shown).

The mechanism for fixing the turret 3 consists of three gear rims: a crown 8 with end teeth, rigidly fixed in the case 1 of a turret support, an intermediate crown 9 with end teeth on both sides and internal parallel teeth mounted coaxially with the crown 8 on the gear surface shaft 2 with the possibility of axial movement, and the crown 10 with end teeth and internal longitudinal teeth mounted on the toothed surface of the shaft 2 coaxially to the rims 8 and 9 and connected to the piston 11 of the cylinder 12 of the clutch clamp,

The crown 9 is rigidly connected to the girth of the ring of the crown 10 and kinematically connected to the piston 11 is the sleeve 13,

ten

15

027232

jamming to move the rim 9 when the turret is released 3.

Revolving caliper works as follows

5 For turning the turret 3, the oil is supplied to the jaw. The first cavity of the cylinder 1 2, and from the right cavity goes to the drain. The piston 11 at the beginning moves the crown 10 to the right, as a result of which a joint appears in the joints of the rims 9 and 10 and thus ensures that the piston 11 retracts through the sleeve 13 crown 9 and the disengagement of the end teeth of the crowns 8 and 9.

In the unlocked state, shaft 2 with turret 3 can be rotated to a predetermined position by gear 7 from its drive. ,

- To fix the turret 3, the oil is fed into the right cavity of the cylinder 12, and from the left - CAVITY goes to the drain. Ilopf Shen 11 moves the crowns 9 and 10 left-. 25 until the teeth of the rims 8 and 9 are engaged. The rim 9 stops and the rim 10 under the action of the forces RdsFig, 3) of the hydraulic cylinder 12 continues to move by the amount of gaps in the connections of the gear rims 9 and 10. In this case, the lateral inclined surfaces L come in contact. (Fig. 3) end

20

thirty

teeth of crowns 9 and 10. The arising tangential forces P j TJ

Cho

turn the rims 9 and 10 into the opposite sides, choosing a gap in the gears M (fig. 2.4) of the turret shaft 2 and the rims 9 and 10, creating the necessary tension in the gears and ensuring the backlash-free fixation of the turret 3 in case 1 by means of gear rims 8-10,

Fin g

i

Fig 3

9

mm

W /// M,

Compiler A.Abramov Editor A.Schandor Tehred A.Kikemezey Proofreader G.Reshetnik

Order 8355/12 Circulation 1085 Subscription VNIIPI USSR State Committee

on business of finding and discovery 113035, Moscow, Zh-35, Raushsk nab., d.4 / 3

Branch PSh1 Patent, Uzhgorod, st. Design, 4,

Fy

Claims (1)

REVOLUTION SUPPORT WITH A HORIZONTAL SHAFT OF A REVOLVER HEAD, comprising a rotation drive and a head fixing mechanism made in the form of a crown with end Teeth fixed in the housing, and also located on the shaft of the head of the intermediate crown kinematically connected with the crown fixed in the housing and the crown connected driven translator FIG. movement, characterized in that, in order to increase the reliability and accuracy of the fixation, the intermediate crown is made with teeth at both ends, mounted on the head shaft with the possibility of axial movement coaxially to the crown fixed in the housing, and connected with the translational drive through the input in the caliper covering the sleeve, while the intermediate crown and the crown associated with the translational displacement drive are coupled to the head shaft by means of longitudinal teeth made on the shaft and in the holes of the crowns and set us to provide a clearance in the axial polozhenits / unlocking head. ί