SU1316753A1 - Lathe driver - Google Patents

Abstract

The invention relates to a machine tool industry and can be used in the machining of parts on lathes. The aim of the invention is to improve the accuracy of the base by the precision of the self-setting of the levers and the uniform distribution of the force between the levers. In the unlocked position, the fork 4 is in contact with the stops 10 of the levers 8 and holds them in the oriented position symmetric00 H SP OE figure 1

Description

but relative to the axis of the device. Cams 14 are deployed on axis x 7, brought into contact with the workpiece, and the clamp is fixed with bolts, the cams 14 are rigidly connected through axis 7 with levers B, While moving the rod. -1

The invention relates to a machine tool industry and can be used in the machining of parts on lathes.

The aim of the invention is to improve the accuracy of the base by the precision of the self-setting of the levers and the uniform distribution of the force between the levers.

Fig, 1 shows the proposed device, a general view of the axial section; in fig. 2 is a view A of FIG. 1j in FIG. 3 — section BB in FIG. one; in fig. 4 bb incision at & ng. one.

The driver device comprises a housing 1j connected to the lid 2, inside of which the rod 3 is movable in the longitudinal direction, contains a fork 4 and a coupling 6 mounted on the axis 5. In the lid 2 on the axles 7, there are levers 8 fixed by screws 9 and containing stops 10, and. rollers 12 are mounted on axles x 11. Levers 8 are spring-loaded in the direction of clamping the workpiece with spring 13. Cams 14 are pivotally mounted on axles 7 and secured in position with bolts 15 by means of a terminal clamp .16. Center 17 is installed in Krishke 2,

Driving device works as follows.

The rod 3 is in the decompressed position indicated in FIG. 1, In this case, the fork 4 of the rod 3 is in contact with the stops 10 of the levers 8 and holds the levers 8 in oriented positions symmetrically with respect to the axis of the device. The workpiece is set on the center 17. The cams 14 are deployed on axles 7, and the clamps are fixed in contact with the workpiece.

As the 3 fork 4 releases the stops 10, and the clutch 6 is installed with great precision in size between the rollers 12 of the levers 8, and with further movement of the rod 3, the workpiece is clamped. 4 il.

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zazkk: m 16 bolts 15, rigidly connecting the cams 14 through the axis 7 with the levers 8. The rod 3 is driven by a drive. (not shown) moves, and the fork 4 releases the stops 10, and the clutch 6 is set with great precision between the rollers 12 levers 8, and. upon further movement of the rod 3, the workpiece is clamped. Since the axis 5 of the coupling 6 is from the axis 7 at a distance greater than the length of the levers 8, and due to the symmetrical arrangement of the levers 8 and the coupling 6, the same clamping forces of the workpiece on both sides and high accuracy of the base 17 are provided. Under the action of the spring 13 the cams 14 prilsatsy to the workpiece and the levers 8 kept in a fixed position. In the future, in the interaction of the bevels, G and the straight-line sections D on the working surfaces of the plug 4 with At frame 10, levers 8 and cams 14 are set to a setting position. After removing the blank, the position of the cams 14 and the levers 8 does not change.

After setting the next smaller blank from one lot between the cams 14 and the blank, a gap is formed, which is further selected when clamping it. In the case of the installation of a larger workpiece from the same batch, the cams-14 flow rate of the hardware, compressing the spring 13. Thus

5 it is ensured that all parts from the batch are installed without additional adjustment, regardless of the size of the first workpiece.

0 Formula of invention

Flood gear, in the case of which the center roller is located and

0

313

pivoting levers on an axis, one ends of which are connected to clamping cams, and others to a rod by means of a hinged coupling, characterized in that, in order to improve the accuracy of the base, the device is equipped with a fork mounted on the rod

167534

interactions with the stops placed on the levers and the spring spaced between the levers introduced into the device, while the clamping jaws are mounted on the levers with the possibility of a fixed rotation, and the coupling is made with inclined surfaces.

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Compiled by G. Kravchenko Editor M. Bandura Tehred L. OliynyK Proofreader A. Ilkpn

Order 2383/10 Circulation 975 Subscription

VNIIZh State Kog-shtet USSR

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

Production and printing company, Uzhgorod, Projecto st., 4

Claims (1)

40 claims A lead device, in the case of which there is a center roller and pivoting levers on the axis, some ends of which are connected with clamping cams, and the others with a rod by means of a pivotally mounted coupling, characterized in that, in order to increase the accuracy of basing, the device is equipped with a rod mounted a fork, designed to interact with the stops introduced into the device located on the levers, and a spring placed between the levers, while the clamping cams 5 are mounted on the levers with the possibility of a fixed rotation "and the clutch is provided with inclined surfaces. view A ----- 6-6 Fig. 3 feed. 4