SU1425393A1 - Multiposition feed mechanism - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in automatic lines, robot-technical equipment, - chesing complexes of the product feed line | When processing them. The purpose of the invention is to increase productivity by reducing the cycle time of the mechanism. The purpose of the invention is achieved by the fact that the means for moving the working member - the pusher 5 is in the form of a lever 4, rigidly connecting the pusher 5 with the rod 3, a slider 7 mounted on the lever 4 with the possibility of periodic movement relative to the lever 4. Located on kinematically connected drums 13 and 17, the protrusions 14 and 18, interacting with the rod 3 and the stop 15, provide working strokes of different length to the pusher 5. 5 Il. "(L 4 ;: I ate with so od od

Description

The invention relates to mechanical engineering and can be used in automatic lines, robotic-technical complexes for supplying LIH with the processing of them.

The purpose of the invention is to increase productivity by reducing the cycle time of the mechanism, j. In FIG. , 1 depicts a multi-position feeder, in the initial area: a view, section AA, FIG. 2 shows a section BB in FIG. one; in fig. 3 shows the mechanism after the first stroke stroke, section B-Bj in FIG. 4 - mecha- nism 15 after the return stroke of the rod, section GG; in fig. 5. - mechanism after full stroke of the rod, the cut

dd

The multi-position feed mechanism 20 (four-position feed mechanism) comprises a housing 1 with a cylinder 2 mounted therein, the rod 3 of which is rigidly connected by a lever 4 to a working pushing member 5. Through a spring-25 gummy taper clamp 6, the lever 4 through a slider 7 moving into guides 8 of the housing 1 between the lugs 9 are pivotally connected with the help of t g 10 and dogs 11 to the ratchet wheel of the AO 12, the hub of which is a drum 13 with protrusions 14 mounted in a plane perpendicular to the stop 15 placed on the rod 3 .

The drum 13 is driven by a carrier 16, associated with a second similar drum 17, the protrusions 18 of which are in the plane perpendicular to the rod 3, and are offset relative to the protrusion Q 14 of the drum 13 in the circumferential direction by an angle of 45 °, the angle of rotation ratchet wheel 12 in the direction of travel.

Pusher 5 interacts with machined parts 19 located in cassette 20 and with clamping unit 21, and vertical pusher 22 interacts with workpieces 19 for placing them into assembly cassette 23.

Multi-feed mechanism works as follows.

From the initial position (Fig. 1), pressure is supplied to the right rod area of cylinder 2, the rod 3 moves the pusher 5 and pushes the workpiece 19 from the cassette 20 into the clamp assembly. Simultaneously slider

35

five

0 5 o

Q

j

five

7 moves the pulls 10 and the pawl 11 by a distance limited by the stops 9 necessary to rotate the ratchet wheel 12, and the distance necessary to rotate the ratchet wheel 12 by 45 in one stroke of the rod 3 is less than the stroke of the pusher 3, which ensures timely rotation drum 13. In this case, the drum 13 rotates by the protrusion 14 against the stop 15 and stops its movement at the moment of the end of the supply of the part 19 to the clamp assembly 21.

At the same time, due to the kinematic connection, the drum 17 is rotated by 45, while the rod 3 leaves the drum -17 (Fig. 3).

After supplying the piece 19 to the clamping unit 21 for carrying out its processing, the pressure is supplied to the other cavity of the power cylinder 2, and by means of the clamp 6, the slider 7, the grams 10 and the pawls 11, the ratchet drum 13 is rotated 45. turning also the drum 17., which is installed by the protrusion 18 against the rod 3 during the subsequent movement, when the slider 7 rests on the right stop 9, and the rod 3, having fixed the cylinder 6 by force of the cylinder 2, rests on the protrusion 14, not the pusher 5 from under the feet details 19 in the cassette 20 (Fig. 4).

After the end of the technological operation, the clamping unit 21 returns to its original position, pressure is supplied to the right cavity of the cylinder 2, the pusher 5 moves to the left, advancing the part 19 from the clamping unit 21 under the assembly cassette 23, the protrusion 14 of the drum 13 rotates and frees the way for the stop 15 who has completed a full working stroke (Fig. 4). Then the pressure is supplied to the left cavity of the cylinder 2 and the pusher 5 with the rod 3 moves to the right until the end, and the rod 3 passes between the projections 18 of the drum 17, thereby returning to its original position (Fig. 1). The part 19 fed under the cassette 23 is lifted into the cassette 23 by the pusher 22. Thereafter, the cycle is repeated.

Claims (1)

Invention Formula The multi-position feeder, comprising a housing mounted in There is a cylinder with a piston and a rod rigidly connected to it, the working body and means for moving it, characterized in that, in order to increase productivity, the mechanism is equipped with guides installed in the housing and an emphasis rigidly connected to the piston of the power cylinder, and the means for moving the working body are complete in the form of a lever rigidly connecting the working body with the rod, placed in the guides of the slide mounted on the lever with the the possibility of periodic movement by the forest. a ratchet wheel, two kinematically interconnected drums with protrusions displaced relative to each other in the circumferential direction and designed to periodically interact the protrusions of the first drum with the abutment, and the protrusions of the second drum with the stem mounted on the slider dogs for periodic rotation of the ratchet the wheel and the second stop mounted in the housing to limit the progress of the slide, and the first drum is rigidly connected to the ratchet 2 ABOUT Fi & .1 CZZHlJ II} 91  M. 8 - .. 1 ". FiveM l W1