SU140310A1 - A machine for assembling a pull-die chain - Google Patents

Description

Automata for assembling a pulp-and-stamping zeppea with connecting fingers are known, which consist of synchronously working and equipped with individual hydraulic drives of the mechanisms for feeding and issuing links to the assembly and turning them.

The proposed automaton is distinguished by the fact that its feeding mechanism is made with three combined channels for the passage of links moving by interconnected brushes.

This embodiment of the machine allows to increase its performance.

In addition, new in the proposed machine is that centering rods are used in it, moving together with the clamped finger, thereby centering the openings of two outer and one inner links before inserting the connecting finger, and also the fact that a tilting arm with a toothed sector and a fork of the linkage is applied.

FIG. 1 shows the kinematic diagram of the automaton; in fig. 2 is a diagram of the passage of links through guides; in fig. 3 is a link centering scheme; in fig. 4 - diagram of the internal link rotation.

In the upper part of the machine (Fig. 1) is the mechanism for skipping links. External links move along two channels / track 2, and internal channels 4, each with their own teeth, each with their own teeth in each middle part, with the other 5 and 5 connecting rods 7 and 10 and 9 moving axes. from jaw 7 to jaw 10 occurs over the parasitic gears 11.

NO 14031Q- 2 -. ,

A continuation of the guide 2 is the guide J2, which can move up and down along a stationary cylinder 13 connected by flanges 14 to the guide 2.

The stationary housing 15 is a finger chain guide. A movable carriage 17 is connected to this housing by columns 16, which in its upper position serves as a continuation of the housing 15.

The rods 18 and 19 with toothed rails lie in the supports 20 and are connected to each other by the bristles 21.

A fork 22 is rigidly connected to the bottom plenum 19.

In the guides 23, a nlit 24 is moved, on which a bracket with an axis 25 is attached. On this axis, an emphasis 26 swings with two shanks 27 and 28. The emphasis in its lower part has a gear sector 29, which is driven by a rack which is a continuation of the rod hydraulic cylinders 30.

In the supports 31, the finger rotating mechanism 32 moves and reciprocates. The rotation of this mechanism is carried out with the help of a pinion 33 connected with the toothed rack of the hydraulic cylinder 34. The rod 35 passes through the body of the mechanism 32.

In the guides 36, the plate 37 moves with a fixed hole 38 fixed on it with a fork 39. The whole assembly can be raised and lowered by a hydraulic cylinder 40 Kronshteyn 41 with mechanisms located on it moves up and down along the guide 42, and can also perform reciprocating motion on track 43.

On the arm 41, the case 44 is fixedly fixed, through which the brush 45 passes. This case serves as an axis around which the arm 46 rotates. With the hydraulic cylinder 47 fixed on it.

The rod of this cylinder ends with a plug 48.

The rotation of the bracket 46 occurs when the cylinder of the hydraulic cylinder 49 moves. At the end of the stem there is a gear rail which is engaged with the gear sector 50 of the bracket 46.

The machine also has a special cassette for false fingers, from which the latter move along guide rails 51. The purpose of the false fingers is set forth in the description of the circuit coater.

By the time the machine starts operating, all its mechanisms are set in the initial position.

The rod 6 (FIG. 2) occupies the leftmost position, holding the outer link. The rods 52 and 53 are in the extreme forward position, holding the inner links. The carriage 17 (Fig. I) is placed at the bottom, the guide 12 at the top. Plate 24 is in the extreme forward position. In this case, the stop 26 (FIG. 3) supports two external links of the chain section previously loaded into the machine, and the vertical axis of the shank 27 coincides with the vertical axis of the machine.

The rod 19 holds the first finger in the housing 15, and the shaft 18 is located away from the next finger. All other mechanisms are retracted from the vertical axis of the machine.

The chain is assembled as follows.

The automat is pre-charged with a portion of the assembled circuit. This section with its first two wedges rests on the support 26 (Fig. 3), and the shank 27 is located between them.

After turning on the automaton, the carriage 17 (Fig. 1) is fed up and in this position is a continuation of the housing 15. The rod 19 moves backward, the first finger is released, and it falls from the housing 15 into the carriage 17. At the same time, the rod 18 moves forward, holding all follow uuh psltsy. Having missed the first finger, the rod 19 returns to its first position, with the pin 18 moving backwards, moving out from under the fingers, and they are lowered all the way into the UITOK 7.9.

Simultaneously with these operations, the movable guide 12 goes down.

Next comes the feed of the inner link - Stock 52 (Figs. 1 and 2) moves backward, and the released inner link falls down through the guides 2 and / 2 all the way into the shank 27, taking a position relative to the two outer links, allowing subsequent alignment of the holes in the links x (Fig. 3).

Having missed the link, the rod 52 returns to its original position, after which the rods of the cylinders 54 and 55 are moved backwards. As a result of this operation, the inner link is released from the fork 56 holding it and falls down all the way into the rod 52 / again in its original position. Behind this link, all other internal links move downwards in succession, after which the plug 56 returns to its place, again holding the internal link.

During the previous operation, the outer links remain in place, as the rods 6 to 8 are pulled out, backward on the course, ensuring the omission of the inner links and holding the outer ones.

After feeding the inner link, the cylinder rod 57 moves forward. The rod 45, the passage in series through the outer, inner and second outer link, centers-holes in them under the finger. The rod is fed all the way into the head of the finger lying in the / 7 housing. At this time, the brush 35 is approaching from the opposite side, and the finger is clamped on both sides. Then there is a simultaneous movement of the rods 45 and 35 together with a finger, as a result of which the latter is inserted into the connected links.

The next step is to move the plug 48 forward, the guide 12 extends upward, the fork grips the inner link and turns it around the finger. After the link rotates, the fork moves to the right with the internal link, with the result that the external links are located in the depressions of the internal link. So that when the inner link moves, the finger does not spontaneously rotate, the latter is held by the two antennae 58 of the mechanism 32. Then the fork 22 approaches and compresses the outer links, as a result of which it enters the hollows of the inner finger of the link. This operation makes it possible to rotate in links, as produced by the mechanism 32. During the stroke of the cylinder 34, the brush 33 rotates and along with it the mechanism 32, which turns the finger with the antenna 58. After that, the turning mechanism 32 moves back to its original position.

Next, the plug 48 returns the already connected internal link to the vertical position, and the plate 24 with the stop 26 moves back. After this, the newly assembled section of the chain, which hangs on the plug 48, is lowered with it down one step. The plate 37 fits and the lower end of the stop 38 goes under the connected inner link. Because. the chain is already hanging on the end shank 38, then the plug 48 goes back and rises up with its bracket 41 up to its original position.

This completes half of the assembly cycle during which the inner link is connected. In the second half of the cycle, two external links are connected. The support for them is a fork 38. Assembly operations are similar to those described above.

Subject matter

Claims (3)

1. An automatic assembly unit of a pull-die-punching chain, with connecting fingers, consisting of synchronously operating and equipped with individual, hydraulic drives feeding mechanisms and issuing and assembling links to the assembly, characterized in that, in order to increase productivity, the feeding mechanism is made with three ows 3 -№ 140310 interlocking channels for the passage of links moving interconnected rods. 2. The automaton according to claim 1, from lich and w, and with the fact that, in order to center the hole of two external and one internal links before entering the connecting finger, centering rods are used, moving together with the clamped finger. 3.Automat on PP. 1 and 2, from lich and yush, and with the fact that the tilting arm with the toothed sector and the fork of the link grip is used in the mechanism of turning the links. // //