SU1220839A1 - Apparatus for axial displacement of arm of forging manipulator - Google Patents

Description

2. The device according to Claim 1, which is based on the fact that the valve, which shunt the cavities of the power cylinder of the recoil of the trunk and the pump, is two-position.

The invention relates to ancillary equipment for forging shops, namely the design of manipulators for free forging.

The aim of the invention is to improve the accuracy and reliability of the device for axial movement of the trunk of the forging manipulator. .

Figure 1 shows a diagram of the device for axial movement of the trunk of the forging manipulator; Fig. 2 shows a floating cylinder with a floating cylinder.

The axial movement device of the forging manipulator trunk includes a manipulator actuator motor 1, gearbox .2, driving daughters 3 and pin rail 4. Variable-capacity hydraulic pump 5 is mechanically connected to gearbox 2 and, with the help of lines 6 and 7, to trunk recoil. Highways 6 and 7 are connected to the hydraulic distributor 9 by the hydraulic cylinder 10, safety valves 1I and check valves 12 make-up from the low pressure system. The hydraulic return cylinder 13 of the trunk is connected to the high-pressure accumulator hydraulic system 14 via the hydraulic distributor 15 and the throttle 16. The hydraulic distributor 15 is also connected to the drain 17. The hydraulic cylinder 10 (FIG. 2) contains the pistons 18 installed on the roof brush 19 at 20. In the middle The part of the rod located in the cavity 21 of the housing of the hydraulic cylinder 10 was mounted with two floating pistons 22.

The main line 23 from the hydraulic accumulator system 14 of the manipulator is connected to the space between the floating ports.

3. The device according to claim.), Which means that the throttle installed in the line connecting the power hydraulic cylinder of the return of the trunk with a pneumohydraulic accumulator is installed in front of the valve.

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During the movement of the manipulator without failure, the electric motor 1 rotates the gearbox 2, and the sprockets 3 roll along the rails 4. The hydraulic pump 5, rotating with the speed corresponding to the set speed, pumps oil through the main lines 6 and 7 through the hydraulic distributor 9 without resistance.

The arm of the manipulator is held in the middle position by the power hydraulic 13, in the middle cavity of which the pressure is supplied from the accumulator hydraulic system of the manipulator.

To perform a rollback, i.e. To stop the trunk in absolute motion, the electromagnets of the hydraulic distributors 9 and 15 are turned on. At this, the oil from the hydraulic pump 5 begins to flow into the power hydraulic cylinder 8 (the feed direction depends on the direction of movement of the manipulator), slowing down the moving trunk.

Until the speed of the trunk relative to the cart reaches a steady-state value, grass and opposite to the speed of the cart relative to the rail, the excess oil flows under one of the pistons 18 of the hydraulic cylinder 10.

The rod 19 with the pistons 18 is displaced, displacing exactly the same volume of oil from the chamber of the opposite piston 18 into the suction line of the hydraulic pump.

When the rod 19 is displaced, one of the floating pistons 22 is moved, the oil is displaced from the cavity 21 into the hydraulic accumulator system 14 of the manipulator. After the period of braking of the trunk is over, the pin 19 takes the initial position.

In order to return the trunk to the middle position, the electromagnets of the hydraulic distributors 9 and 15 are turned off.

. In this case, the cavities of the power hydraulic cylinder 8 and the output of the hydraulic pump are interconnected, and oil and the accumulator hydraulic system of the manipulator are fed into the hydraulic cylinder 13.

The speed of the return movement of the trunk is regulated by the choke 16.

Compared with the basic object, which is taken as a prototype, the use of this invention improves the accuracy and reliability of the axial movement device of the forging arm's trunk.

FIG. g

Claims (3)

1. AXIAL MOVEMENT AXLE TRAVEL FORGING FORMING MANIPULATOR containing a trunk hydraulic retraction cylinder connected to the trolley and a suspension bracket of the trunk, the cavities of which are connected by highways with a reversing pump and bridged by a hydrodistributor, and a power hydraulic return cylinder connected to the trunk by a hydraulic valve connected to the trunk throttle and hydraulic distributor, as well as protection and replenishment means and mechanism for moving the trunk carriage in the form of a pin gear and drive gear o a gearbox kinematically connected with a reversible pump, characterized in that, in order to increase accuracy and reliability, it is equipped with a hydraulic cylinder with two floating pistons, a cavity between which is connected by a trunk to a pneumohydraulic accumulator, and its piston cavities · are connected to the outputs of the reversible pump. SU w, 1220839 2. The device according to claim 1, about t l and the fact that the control valve shunting the cavity of the power hydraulic cylinder rollback of the trunk and pump is made on-off. 3. The device according to claim 1, wherein the throttle is installed in the line connecting the trunk hydraulic return cylinder to the pneumohydraulic accumulator installed in front of the valve.