SU1217660A1 - Transfer arm gripping device - Google Patents

Description

one

The invention relates to mechanical engineering, in particular to the working bodies of auto operators, and can be used to load parts into machine tools and automatic CNC lines,

The purpose of the invention is the expansion of technological capabilities by ensuring the capture of parts of different diameters with adjustable clamping force.

FIG. 1 shows the grip of an auto operator, general view; in fig. 2 is a view A of FIG. one; FIG. 3 is a section BB in FIG. 1; FIG. 4 is a section B-B in FIG. 2 ,,

The auto operator's circuit includes a body 1, along which the clamping jaws 2, made in the form of half-rings with threaded teeth, move along the curved grooves. Clamping jaws 2. meshes with gears 3, which are driven from electric motor 4 through chain gear 5 and b and worm gears 7 and 8, connected by shaft 9, the tong is equipped with a clamping mechanism made in the form of an electric motor 10, the output shaft of which is kinematically connected by means of a 1 worm gear coupling, having a worm to 12 and a worm gear 13, and a screw-nut transmission with a pusher 14.

The worm gear 13, mounted on bearings 15 in housing 16, is made in one piece with the screw-nut transmission nut and is connected to the screw 17 of this gear, which is hollow and mounted for axial movement. In the cavity of the screw 17, a pusher 14 is installed and an adjusting nut 18, which acts on the pack of disc-shaped springs 19 and is in contact with the screw 17 by means of an external thread.

When rotated, the pusher 14 through the inset key 20 acts on the adjusting nut 18, causing it to move in the axial direction of squeezing and expanding the disc springs 19. Thus, the force of pressing the part to the clamping jaws changes

2176602

t, e, the force of pressing the part against the clamping jaws 2 is adjusted.

At the upper end of the hollow screw 17 is installed a plug 21, to which

5, a bracket 22 is attached with a limit switch 23 located on the non-operating end of the pusher 14 to limit its travel.

In the initial position, the clamping lips 10 ki 2 are separated from the center and are in the opened position. The screw 17 is in the upper position, with the stop 24, associated with the pusher 14, under the action of the disc springs.

15 19 is pressed against the supporting surface of the plug 21. When the output shaft of the electric motor 4 is rotated through the chain transmission 5 and 6 and the worm gearboxes 7 and 8, the gear rotates.

20 3, forcing the clamping jaws 2 to move. Moving along a circular path, the jaws 2 pick up the product. Then, while rotating the output shaft of the electric motor 10 through the coupling

25 1 and the worm to 12 comes into rotation the worm wheel 13.

In this case, the screw 17, being limited from rotation by the fixed key 25, at the one installed in the flange 26, is unscrewed from the nut, made in one piece with the worm gear 13, moving along its axis. When the pusher touches the surface of the product, it stops, the screw 17 together with the limit switch 23 continues to move, compressing the packet of the disc springs 19. The screw 17 moves until the pusher 14 interacts with the limit switch 23, which gives the command to turn off the electric motor 10. pressing with a given force of the gripped part to the clamping jaws 2.

The grip of the auto-operator ensures reliable clamping of the parts by using a worm gear in the clamping jaws, which excludes the possibility of the part falling out of coverage during an emergency stop of the electric motor.

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Editor M, Petrova Tehred M. Parotsay Proofreader M. Samborska

Order 1048/20 Circulation 1030 Subscription

VNIIPI USSR State Committee

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

Filial PSh1 Patent, g, Uzhgorod, st. Project, 4

Figm

Claims (1)

SCOPE OF THE AUTO OPERATOR, comprising a housing with curved grooves, in which clamping jaws are made, made in the form of half rings kinematically connected to the drive, characterized in that, in order to expand technological capabilities by providing gripping parts of different diameters with adjustable force clamp, it is equipped with a clamp mechanism made in the form of an electric motor kinematically connected with a spring-loaded pusher by means of a worm gear and screw-nut gear, the nut of which is made in one piece e- with the worm gear of the worm gear, and the screw of this gear is hollow and axially mounted, the specified spring-loaded pusher with an adjusting nut is installed in the screw cavity, and a stop is located on the non-working end of the pusher, and the end screw is installed on the hollow screw a switch with the ability to interact with its tip with a pusher. SU „1217660