SU979078A1 - Apparatus for indexing threaded parts - Google Patents

Description

one

The invention relates to the automation of technological processes in mechanical engineering and can be used in loading devices where the orientation of parts with right and left threads at the ends is required.

A device for orienting parts such as rotation bodies with left and right threads at the ends is known, comprising an underwater tray with a drive shut-off device, an I-shaped discharge tray, a feeding tray with an orienting element made in the form of a protrusion mounted offset from the longitudinal axis of the feeding tray, and a hinged receiver mounted on the axis of the feeder perpendicular to it 1.

A disadvantage of the prior art is the unreliability of the operation of the orientator mounted directly on the feeding tray. In the process of orientation, the part along the delivery tray, under the action of its own mass, interacts with its protrusion displaced relative to the longitudinal axis. At the same time, the orientable part has no side guides to feed its tray, and the protrusion reaching a small depth cannot provide details of its stable position in the tray.

The purpose of the invention is to increase the reliability of the known device.

The goal is achieved by giving. The chute is made in the form of a belt transport, while the protrusion of the hinge is installed nematically over the feed tray and K1 with the drive isolator.

FIG. 1 shows the proposed

20 device; in fig. 2 shows section A-A in FIG. 1, in FIG. 3 - V-shaped discharge tray.

Claims (2)

The proposed device consists of an underwater tray 1 with a drive shut-off device 2, a feed tray 3 and a V-shaped discharge tray. At the end of the feed chute 3, a protrusion 5 is installed above it, mounted on the hinge bar 6 ". It has the ability to roll on axis 7 and is connected with a drive, for example, an pneumatic cylinder 8 and through a lever 9 with a drive cut-off 2, hingedly mounted on axis 10 of bracket 11 , The bottom of the feed tray 3 is made in the form of a leading branch 12 of a belt conveyor mounted on drums 13 and 1 (the drive is conventionally not shown). At the end of the feed chute 3, a swinging receiver 15 is mounted along its axis and perpendicularly to the axes of rotation 16, which are fixed to the bracket 17. On two sides of the swinging receiver 15, receiving funnels 18 are mounted, which are joined with a / -6-fold vertical exhaust chute for you giving oriented parts. In the center of the tray k, the flag 20 is set on the hinge 19. The device operates as follows. Submerged tray 1 is filled with parts 21, the bottom of which abuts against slam 2, and one part 21, skipped with squeezer-2 through l 3, when rotating the leading branch 12 of the conveyor is fed to the hinge plate 6 and rests against it, with this protrusion 5 enters the recess of the thread of the part 21 (see fig. 2) By moving the leading branch 12 (the direction of rotation of the drum 13 is shown by arrow 22), the plate 6 of the part 21 is forced to be pressed and rotated (the direction of rotation is shown by arrow 23). Details 21 in the direction of the arrow 23 for the sc The interaction of the protrusion 5 with the deepening of the thread of the part 21 ensures the displacement of the part 21 (respectively, and its center of gravity) in the axial direction relative to the longitudinal axis of the pick-up tray 3. The direction of displacement of the center of the body of the part 21 depends on which thread (right or left) ) the part falls on the protrusion 5. If the protrusion 5 is displaced relative to the longitudinal axis of the feed tray 3 to the left while the part is moving, then the part 21, hitting the protrusion 5 with the right thread, will rotate to the right with the arrow 23 and the left-hand thread to the left. Consequently, the center of gravity of the part will always be displaced relative to the longitudinal axis of the tray towards the left-hand thread of the part. If the protrusion 5 is displaced relative to the longitudinal axis 3 to the right as the part moves, the center of its weight will rotate towards the right threading details. The rotational speed of the conveyor is selected so that during the time that the part 21 presses against the bar 6, it makes 2-3 turns (respectively, 2-3 steps of the thread displaces its center of gravity relative to the longitudinal axis of the feed tray 3, which ensures its orientation). After the orientation of the part 21 is completed, the drive automatically triggers, the hinge bar 6 rotates (the position of the shut-off device is shown in Fig. 1 by thin lines), and the part 21 goes to the rocking receiver 15. Simultaneously, through the lever 9, the slam-shut 2 turns in direction opposite to the hinge plate, while the lower of the parts, located on the underwater tray 1, changes the position of the stop relative to the cutter 2; instead of the initial stop, it now abuts the outer ledge into the internal ledge (position the cutter is shown in Fig. 1 by thin lines). When the part 21 arrives at the swinging receiver 15, it rotates on axis x16 towards the displaced center of gravity. Thus, part 21 falls into one of the funnels 18, and then the tilting of the flag 20 relative to the hinge 19 enters the vertical shaped tray 4. In the latter part 21 will always be oriented left-handedly downward, if the protrusion 5 is fixed on the hinged bar 6 by shifting to the left relative to the longitudinal axis of the feed tray 3. Part 21 will always be oriented right-handedly downwards, if the ledge 5 is fixed with an offset to the right. during the return stroke of the actuator 8, the hinge plate and the lever 9 return the cutter 2 to its original position, while only one part 21, which was held by the internal protrusion of the cutter 2, rolls into feed 3 and all other parts on the underwater tray 1 continue to be held outer lug clipper 2. The cycle repeats. In the proposed device, the orientable part is rotated forcibly from the belt conveyor, which provides additional clamping to the guide protrusion located in the recess of the thread. The invention of the device for the orientation of threaded parts with left and right cut 8 fights at the ends, containing an underwater tray with a drive shut-off device, a shaped discharge tray, a feed tray with an alignment element offset with respect to the longitudinal axis of the feed tray, and a hinged receiver mounted along the axis of the feed tray is perpendicular to it, characterized in that, in order to increase the reliability of the device, the feed tray is made in the form of a belt conveyor, while the protrusion is articulated mounted above the feed chute and kinematically coupled to the drive isolator. Sources of information taken into account in the examination 1. USSR author's certificate N 639683, Cloe B 23 Q 7/08, 1977 (prototype). 6 Fwg. 15 20 fyg.J