DE1956801A1 - Device for transporting workpieces between workstations - Google Patents

Description

Heinz line April 23, 1970

Lindenbauinstr. 13th

Device for the horizontal transport of workpieces between work stations

The invention relates to a device for the horizontal transport of workpieces between work stations ₅ , the workpieces being transported vertically in the area of a work station. Devices of this type, in which a carriage is used for horizontal transport, are known, for example, in electroplating systems. In such systems it is known to arrange a larger number of baths in a straight row or in two parallel straight rows and to provide running rails for a carriage parallel to the bath rows _s one to the transport direction; has a right-angled arm that can carry a support device for the workpiece and can be moved vertically up and down relative to the rest of the carriage. By means of such a carriage, workpieces can be lifted out of one bath and transported to another bath and lowered into this other bath. In the case of two parallel rows of bathrooms, the running rails are arranged on the two outer sides of the rows and run around the ends of the rows in half a circular arc. The end of the arm that carries the workpiece then always remains above the center of the individual baths, since the arm is at right angles to the direction of the rails.

23 439 "- 2 -

109822/0721

The purpose of the invention is to improve such devices so that they do not require more complicated work processes more can follow.

According to the invention, the above-mentioned is in a device Type of arm that carries the carrying device for the workpiece, arranged on a vertical rod, the can be rotated by machine around its axis in the carriage. Preferably there is an electric motor for the horizontal one on the car Transport of the trolley, intended for vertical movement of the boom and for rotating the boom around its axis, wherein the latter motor can be attached to the linkage. The arm preferably has a gripping device with which he can reach under a head part of the carrying device of the workpiece, while the carrying device is a frame owns, with which it can be placed on the top of a workstation while the carried by it Workpiece is located within the workstation. The rails for the trolley are preferably on the floor or attached to the ceiling.

The drawing shows exemplary embodiments of the invention.

Pig. 1 shows a schematic plan view of an electroplating plant with three devices according to the invention;

Pig. Fig. 2 shows a device according to the invention, in which the running rails are attached to the ceiling of the room are;

Fig. 3 shows a device according to the invention, in which the running rails are attached to the bottom.

109827/0721

The carriage of the device consists (see Fig. 2 and 3) of parallel vertical supports 4, two attached axles 5 and 6 for wheels 7 and 8 and a horizontal cross support 9. The wheels 7 and 8 run on horizontal rails 2 and 3 supported by a frame 1 attached to the ceiling D. The cross strut 9 carries a vertical linkage 10 which can be rotated around an axis by means of a motor 11. A motor 12 is attached to the linkage 10, on the shaft of which a sprocket 13 is seated, which drives an endless chain 14 via a stationary sprocket 15. At ₁ a trump of the f | Chain is attached to a horizontal arm 16 with a gripping device 16a. With this gripping device 16a, the arm 16 grips from below a head 17 of the holding device for the workpieces, which here consists of a basket 18 which is connected to the head 17 by a vertical rod 19. With this rod 19, a horizontal frame 20 is also rigidly connected, the downwardly projecting edges 21 can sit on the edge 22 of the bath container c.

A further motor 23 is attached to the carriage W and can drive a toothed wheel 24 which engages in a toothed rack 25 which is fastened to the frame 1. G

If Uie arrangement according to FIG. 2 is at the point that is designated by A in Fig. 1, the arm 16 can be pivoted by means of the motor 11 such that its end is approximately is above the bath c. This then corresponds to FIG. 2. By means of the motor 12, the arm 16 can then move downwards are moved so that the support device 18 with the workpieces is immersed in the bath c. Then he sits down Frame 20 on the edge 22 of the bath c. By downward

109877/0721

because of the arm 16, this arm is free of the carrying device, so that the entire device on the Rails 2, 3 can be driven to any other bath a, b, d, v, w or χ. When the carrying device 18 is to be lifted out of dem.c, the device is moved to the bathroom c with the arm 16 in a Height position is brought so that it drives under the head 17. By lifting the arm 16, the support device 18 lifted with the workpieces from the bath c and raised so high that the support device lies above the edge 22. By switching on the motor 23, the device together with the workpieces can then be driven to one of the baths b or a. By operating the motor 12, however, the arm 16 around the axis of the Rod 10 are pivoted so that the support device 18 when pivoted through 90 ° above the bath d and when swiveled by 180 ° is above the bath ν (see Fig. 1).

If several devices of this type are used, the carrying devices 18 can easily be of one Device, for example device A, can be transferred to another device, for example B. At a System according to Fig. 1 can therefore all baths a to χ of the two devices A and £ in any order to be served. In order to speed up the work, it may be useful to use two devices according to FIG of the invention, as shown in Fig. 1 at B and C.

The arrangement according to FIG. 3 differs from the arrangement according to FIG. 2 only in that the frame 1 is not attached to the ceiling D _; but is attached to the floor F. The same reference symbols are therefore used in FIG. 3 as in FIG. 2.

1Q98 ?? / - n'7? 1 Claims:

Claims (4)

·} BbBSO 1 Heinz line ^ Solingen Lindenbaumstr. I3 claims: 1.! Device for the horizontal transport of workpieces between work stations and for the vertical transport of the same in the area of the work station ä by means of a horizontally transportable carriage which has an arm that can be moved up and down for a support device for a workpiece, characterized in that the arm (16 ) is arranged on a vertical rod (10) which can be rotated by machine about its axis in the carriage. 2. Apparatus according to claim 1, characterized in that the substantially horizontal to the row of the workstations essentially parallel running rails (2, 3) on the floor or on the ceiling of the Attached to the room. 3. Apparatus according to claim 1 or 2, characterized in that the car electric motors (11, 12, 23) for the horizontal transport of the trolley, for vertical movement of the rod (10) and for rotating the rod (10) is provided around its axis. 4. The device according to claim 3, characterized in that the arm (16) sits on a chain (14) which of a motor (12) attached to the linkage (10) is movable. _{C / Qn} 1098 ?? / Π7? 1 iyb68Q1 Device according to one of Claims 1 to 4, characterized characterized in that the arm (16) has a gripping device (16a) with which it is under a head part (17) the support device (18) can grip, and that the support device (18) has a frame (20) with which it can be placed on the upper edge (22) of a workstation while the carried by it Workpiece is located within the workstation. 98 ?? / 07? 1