DE2757909A1 - Rivet feed for assembly line - has two discs with meshing gear teeth to transfer rivets - Google Patents

Abstract

A machine for delivering small articles, such as rivets, to an assembly line, has a chute (13) with three channels (12). The rivets fall from the chute into holes in a disc (1) which rotates intermittently through 180 deg. This disc is mounted on a shaft with a gear wheel which meshes with a second disc. When the holes in both discs are aligned the rivets drop into the holes (4) in the second disc. This then rotates through 180 deg. to deliver the rivets to the work station (A) where they fall into holes in the workpiece.

Description

Transport and feeding device for workpieces

or the like. to a processing station The invention relates to a device for picking up, transporting and intermittent or continuous Feeding preferably several workpieces or similar parts, in any, however, an arrangement fixed to one another, from a storage station to a further processing station, for example for very specific rivet patterns or other elements in the tools of presses or the like.

The two main requirements for such feeding devices are especially in machine tool construction, on the one hand, the smallest possible space requirement Device itself, since mostly only narrow but long paths are available or are to be overcome and on the other hand, a timely as fast as possible delivery to to achieve high cycle rates and thus output rates.

The known, reversing slide systems with one or both ends Parts take-up can meet these requirements with simply designed feed parts, their Acquisition and transport of relatively fewer centering elements or the like. still needed halfway sufficient, but are all either due to the long ones to be covered Paths between intake and delivery cycle generally too slow or with both ends, So alternate loading too expensive and structurally large, as a result of required allocation of double supply and separating systems.

This is where the present invention ties in, with the object To create a system of the type mentioned above, which amount of feed channels form, Quickly bridge long feed paths, enable precise positioning and in particular when the parts are handed over to the processing point, from the one, same supply and the singling system can reload the feeding device.

This task is essentially achieved by at least one, with radially to their surface center and opposite each other in pairs Part fixing stations provided, intermittently or continuously rotatingrl driven Disk, as well as this associated parts supply and Uereinzlersystem, which makes sense it can be provided that the supply and separating system, as well as the neighboring Disc area outside of the machine resp.

Tool limits.

In a special embodiment of the development, it is also proposed that that for bridging longer, narrower feed routes two or more each other downstream disks are provided, these being for the purpose of automatic parts transfer sector-like in the area of the fusing stations, each overhead and synchronized with each other are driven.

The advantageous features can already be derived from the features listed above Recognize solutions to the problem posed by the invention, in particular in the quickly traversable, stepwise feed paths without a return stroke or the like. and, the exact guidance and positioning of the parts.

Further design features of the invention are set out in the remaining claims refer to.

An exemplary embodiment of the invention is shown schematically in the drawing shown.

In detail: FIG. 1 shows the basic structure of an inventive Feed system in section and FIG. 2 shows a plan view of FIG. 1.

The feed device shown in Figs. 1 and 2 consists of one around the axis "a" - preferably depending on the cycle of a B2arleitungsstation "A" - rotating driven disk 1, in the so-called part fixing stations, several radially to the surface center 2 and opposite each other in pairs Through holes 3, 3 ', 3 "formed hole patterns are introduced. This first Disk 1 is a, preferably outside the machine or tool limit "C" lying storage and separating system "B" the parts to be transported 4 assigned.

Downstream of the first disc 1, namely below, as well as by means of the toothing 5 is forcibly bound with this about the axis "b" running synchronously another disk 6 with the same pitch and hole pattern arrangement 7, 7 ', which is shown here In addition to taking over parts in the area "O", the function of transport and provision which has parts 4 at the processing station "Å". About the discs or

Segments or the like, 8 and 9 is prevented that the parts 4, except in the transfer area "D" from disk 1 to disk 6, fall through the latter, a function at the processing station - here schematically as a facility for pulling rivets 4 'into one Sheet metal strip 10 is shown - Take over the lower punch or counter holder 11.

The functional sequence of this entire facility can now be as follows be: From the channels 12 of the storage container 13, for example by a separately or ziangsgesteuelte Schw2nkbewcgung the slide 14 through its recesses 15 a position of the parts 4 is always released and falls into the holes 3 ', if at the processing station "A" by means of the punch or counter holder 11, 11 ' a rivet or the like. he follows; in the same position also the falling through takes place Parts 4 from holes 3 "of disc 1 into 7 'of disc 6. Around at all positions absolute congruence of the holes with each other or the holes with the tools 11, 11 ', isb schematically the additional fixing of the parts to one another by means of index bolts 16 or the like. indicated; the latter can also be mechanically constrained take place, for example derived in a form not shown, also from the Movement of a tool upper part at C or the like, such as the rack and pinion rod 17, wheel 1B - for disks 1 with 6.

In this system according to the invention, therefore, in equivalent Lined up several slices, relatively long feed paths in the manner of a narrow one Channel can be bridged, at the same time whenever at the processing point Parts are taken out on the feed side which is fed are. In addition, since these parts are only inserted into the Reaching each position is extremely quick work with high dropout rates possible. It goes without saying that this applies to everyone in a generally known manner any point, but preferably immediately behind the loading station the individual holes can be checked for existing parts, for example through photocells or the like. In addition, the embodiment shown is only an example, and not limited to the type and arrangement of the elements shown, but rather can be used universally wherever parts are from a supply station to a processing station within machine tools, automatic welding machines or the like. need to be transported.

L e r s e i t e

Claims (7)

Claims device for picking up, transporting and clockwise respectively. continuous feeding of preferably several workpieces or similar parts, in any order, but fixed to one another, from a storage station to a further processing station, g e k e n n n z i c h n e t d u r c h at least one, with radial to its surface center (2) and each other each pair of 2 opposing part fixing stations (3, 7) provided, clockwise2 or continuously rotating driven disk (1), as well as the associated one Parts storage and separating system (8). 2. Apparatus according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the supply and dividing system (S), as well as the adjacent pane area (1 ') lie outside the machine or tool limits (C). 3. Device according to claims 1 and 2, d a d u r c h g e k e n n z e i h n e t there; to bridge longer, narrower feed paths two or more successive disks (1 and 6) are provided, these sector-like in the area of the fixing stations for the purpose of automatic parts transfer (3 ", 7 ') are each übeirccken and driven synchronously with each other. 4. Apparatus according to claim 3, d a d u r c h g e k e n n z e i c It should be noted that the disk drive is derived from the drive movement of the processing station (A), mechanically constrained. 5. Device according to claims 1 to 4, characterized in that since the singling system (ß) has a release slide (14) or the like. for the clockwise Equipping the respective fixing station (3) arriving empty and the slide movement also mechanically forcibly linked to the disk drive. 6. Device according to claims 1 to 5, d a d u r c h g e k e It is noted that the fixing stations have through-holes (3, 7) in the washers (1 and 6), the disks (1 and 6) at least in the area of the perforated tracks (1 'and. 6 ') rest or run on plates (8, 9) and the latter only at the parts transfer points (3 # 7 ') and possibly the processing station (A) are interrupted. 7. Device according to one or more of the preceding claims, not shown by additional locking or positioning at least one of the disks (1 and 6) by means of bolts, index pins (15) or the like.