SU872195A1 - Gantry-type charging mechanism - Google Patents

Description

(54) PORTAL LOADING DEVICE

one

The invention relates to mechanical engineering, in particular to loading devices that feed the blanks of machines for various purposes, working them automatically.

A portal loading device is known, comprising racks with a traverse attached to them, a carriage mounted on the traverse with two pairs of grippers, as well as a mechanism for moving the grips in the form of movable rods connected to the power cylinders 1.

A disadvantage of this device is that the hydraulic cylinders of the mechanism for moving the grippers and the track guidance system are located directly on the movable carriage, which leads to an increase in the metal intensity of the moving parts and requires the supply of utilities for electrohydraulic feeding, thereby reducing the reliability of the entire device.

The purpose of the invention is to increase reliability, reduce dimensions and reduce the weight of moving parts.

In order to achieve this goal, the mechanism for moving the grippers is provided with placed on the carriage and

able to interact with movable rods with two hollow shaft-gears, transfer rollers, kinematically connected with the mentioned gears, rack and pinion gear and hydraulic cylinders mounted in one of the racks and connected, with the transfer rollers with the help of gear-rack transfer.

FIG. 1 shows a portal boot device, general view; in fig. 2- the same side view; in fig. 3 shows section A-A in FIG. one;. in fig. 4 shows a section BB in FIG. I;

to in FIG. 5 shows a section B-B in FIG. 3

Claims (1)

The device contains racks 1 and 2, traverse 3 mounted on them with guides 4, carriage 5, based on equal to 4 by means of roller bearings 6. On the side surface of traverse 3, a hydraulic motor 7 is mounted, moving the carriage 5 along rails 4 through chain transfer 8, placed in the provided traverse compartments 3. A bracket 9 is installed on the lower plane of the carriage 5, the side planes of which carry the bodies 10 with the rods 11 embedded in them. At the lower ends of the rods And there are clamp clamps 12 employees to transfer the workpiece. Rods 11 with tick-borne grips 12 have the ability to move in a vertical plane relative to the housings 10, between these links, discharge springs 13 are installed. The sides of shtangs 11 adjacent to the carriage 5 are in the form of rails, the teeth of which engage the teeth 14, located in the carriage body 5. On the rack 2, hydraulic cylinders 15 are installed, which serve as a drive mechanism for moving the grippers 12 by means of a kinematic chain consisting of sleeves 16 ,. rails 17, shchestren 18, dispensing rollers 19 and cross sleeves 20 fixed on the ends of the shaft wheels 14. The latter are hollow to ensure free passage of the transfer rollers 19, and the links of the cross sleeves 20 have windows that have the shape corresponding to the profile of the transfer rollers 19 based with their free ends in the sockets of the suspension 21, mounted on the carriage 5, the crosshead 3. To supply the charging device with the blanks on the rack 2, a console 22 is installed with a loading device 23. Portal loading device as follows. When one arm of the loading device is operating, the material handler 23 places the workpiece at the working position. In this case, the carriage 5 moves along the crosspiece 3 to the right extreme position. Then one of the hydraulic cylinders 15 is actuated (depending on the received work cycle). When moving upward, the hydraulic cylinder 15 through the coupling 16 moves the rail 17, which transmits rotational movement to the dispensing roller 19 through the bristle 18. In turn, the dispensing roller 19 transmits the movement to the cross coupling 20, which is rigidly connected to the shaft-bristles 14, and through it to the rod 11, moving the clamps 12 down to sample the full stroke of the hydraulic cylinder 15. The claws in this case take the workpiece from the reloading cell. The hydraulic cylinder 15 reverses, after which the grippers 12 move upwards. Further, the carriage 5 moves along the crosspiece 3 to the left end position. During the movement of the carriage 5 along the traverse 3, the load on the dispensing rollers 19 due to the weight of the pole 11 with grippers 12 is compensated by springs 13. The device improves productivity, since the main elements of the gripper movement mechanism are not located on the movable carriage, but on one of the gantry racks. In this connection, the reliability of its work is also increased. Claims of the invention A portal loading device comprising racks with a traverse attached to them, a carriage with two pairs of grippers mounted on the traverse, and a mechanism for moving the grips in the form of movable bolts associated with power cylinders, characterized in that, in order to increase reliability, reducing the size and reducing the weight of moving parts; the mechanism for moving the grippers is provided with two hollow shaft-gears placed on the carriage and mounted with the possibility of interaction with the moving rods; precise rollers, kinematically connected with the said gears, rack and pinion gear and hydraulic cylinders mounted in one of the uprights and connected with the transfer rollers by means of the rack and pinion gear. Sources of information taken into account in the examination 1. A. N. Malov. Loading devices for machine tools. M., “Maschi. Building, 1972, p. 142, FIG. 91. fig.g A-A 12 D 18 phage.C