SU1202779A1 - Table of metal-working machine tool - Google Patents

Description

structure, in particular to the tables of multi-purpose machines.

The purpose of the invention is to ensure compactness and reduction of metal consumption of the table.

The drawing shows the proposed table cutting machine, the cut.

The table comprises a housing 1 mounted thereon on bearings a faceplate 2, on which a T-shaped platform 3 with an interchangeable plate 4 is placed. Clamping and fixing the interchangeable plate 4 on the faceplate 2 is carried out with a packet of disc springs 5 placed in the cavity of the cup 6 and interacting with axially movable rod 7, which is rigidly connected with platform 3. On piston 7, a hole centrally through the bottom 8 of the cup 6, the piston 9 of the power cylinder is fastened. The package of disc springs 5, resting on the bottom 8 of the cup 6, made in the form of a piston of a power cylinder with rams 10, compresses the inner 11 and outer 12 disks of the friction clutch rigidly fixed on the faceplate 2 and the base 13, respectively.

The washer 2 is rigidly connected to the angular position sensor 14 by means of a hollow axis 15, in the central bore of which the shank 16 of the rod 7 is located. On the axis 15 installed with a guaranteed clearance relative to the shoulders 10, there is a collector 17 for supplying fluid in the cavity of the power cylinders through axial channels 18 and 19 in stock 7 and shank 16.

The washer 2 is driven into rotation by an electric motor through a backlash-free reducer, the output gears (not shown) of which engage with the wheel 20 rigidly mounted on the faceplate. The extreme positions of the piston 9, corresponding to the clamped and depressed positions of the states 4, are controlled by the limit switches 21 and 22. The clutch is open

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0 5 0 5

0

five

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You, corresponding to the extreme positions of the shoulders 10 of the cup 6, are controlled by the limit switches 23 and 24, and the braking and stopping in the desired position of the rotary part of the table is carried out when the limit switches 25 and 26 are activated, respectively.

The device works as follows.

. When fluid is supplied under pressure into the cavity of the ram through the manifold 17 and the axial channel 18, the stack of disc springs 5 is compressed and the cup 6 is moved with the shoulders 10, which ensures the disengagement of the discs 11 and 12 of the friction clutch. After the coupling is disengaged, the faceplate 2 is rotated to a predetermined angle or continuous rotation for a certain time from the electric motor through a backlash-free gearbox. The rotation of the faceplate 2 is controlled by the sensor 14 of the angular position, and braking and stopping - when the limit switches 25 and 26 are activated, respectively. When the pressure is switched off, the packet of cup springs 5 moves the cup 6 to another extreme position, providing the clutch of the disks 11 and 12 by means of the shoulders 10.

To replace the plate 4, pressurized fluid is supplied through a manifold 17 into an axial channel 19 into the cavity of the power cylinder. The disc spring package is removed and the piston 9 is moved with the rod 7 and the platform 3 with the plate 4. A special PITA change mechanism (not shown) seizes it and removes it from the platform 3. When connected to the drain of the channel 19, the disk-shaped the springs 5 land the newly installed plate 4 on the faceplate 2. The clamped and depressed position of the plate 4 is controlled by limit switches 21 and 22.

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five

Editor S.Saenko

Compiler E. Komarov

Tehred M. Parotsay Proofreader G. Reshetnik

8359/15 Circulation 837 Subscription

VNISh of the USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab., - 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Claims (1)

TABLE OF A METAL-CUTTING MACHINE, comprising a housing, a faceplate with a mechanism for turning it and a hydraulic cylinder for clamping a removable plate by means of a spring-loaded rod rigidly connected to the platform, located coaxially to the faceplate, a holder for the angular position of the faceplate made in the form of a friction clutch, the outer disks of which are attached to the body, and the internal - to the faceplate, the clutch release cylinder of the indicated disks and the axis rigidly connected on one side to the faceplate angular position sensor, and on the other hand, to the an washer, characterized in that, in order to ensure compactness and reduce the metal consumption of the table, it is equipped with a fluid manifold, and the piston of the hydraulic cylinder of the friction clutch disc-coupling mechanism is made in the form of a cup with shoulders located coaxially with the rod of the plate clamp mechanism in the cavity formed in the faceplate, while the spring of the plate clamping mechanism and the cup are installed to interact respectively with the bottom of the cup and the friction clutch disks; moreover, the axis is hollow to accommodate the rod in it and supply through it through the fluid channels formed in the rod from the collector to the cavities of these power cylinders.