DE2816534A1 - MOUNTING TABLE - Google Patents

Description

Applicant: Stuttgart, April 14, 1978

N.V. Nederlandsche Apparaten- P 5527 Ro

fabriek NEDAP

Oude Winterswijkseweg 7

Groenlo

Netherlands

Representative:

Kohler - Schwindling - Späth
P at ent attorneys
Hohentwielstrasse 41
7000 Stuttgart 1

Assembly table

The invention relates to a table for row assembly from Components of composite products. These products can be of many types, with the components being made up of fine mechanical parts such as Screws, levers, wheels, springs, etc., but also from parts for switching technology, such as contacts, current-carrying terminals and brackets, coils, magnets

or the like, or from components from electronics, such as transistors, Capacitors, resistors, etc. exist.

All these products have in common that they usually consist of one housing or box of relatively small dimensions, in which the individual Parts are to be attached, fastened, connected to one another, etc. This then usually happens in successive phases, in each of which acts are performed in an expedient order, the ultimately lead to the finished product. At the work site where a single phase is carried out, there are containers with those for this Phase certain items, whether electrical, pneumatic or otherwise Devices to carry out the different work processes.

These edits can either be done on a single product or can be made on a limited number of products that can still be overlooked, initially in sequence with those belonging to the given phase Parts are provided, which then with the help of the existing

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Tools are attached, connected to each other, etc. Product or the limited number of products that are processed at the same time are passed on to the next phase, where a subsequent series of edits are performed. If there is one limited per phase Number of products is processed at the same time, an aid is often used, e.g. in the form of a mounting plate on which the products are placed are attached.

Assembly tables of this type are known. They consist in their simplest Form from a normal work table with a structure arranged on it, in which containers for the individual parts to be attached are arranged. It However, complicated assembly tables are also known in which fastening means for the housing are provided on an endless belt or an endless chain or the container of the product to be assembled is arranged, which belt or which chain is e.g. the job can be switched on or off, is powered. As soon as all necessary actions on all products the one band or a chain, the products have to be sent to the next work station for the following series of processing operations be passed on. For this purpose, rails are provided, for example, on which the entire, the endless belt or the endless chain containing Container rests by means of rollers so that it can be rolled on to the next job.

The disadvantages of these tables are clear. In its simplest form they offer little comfort, while for every new series of products they have to be provided with everything that is necessary, since they are not a mere table other facilities than the table surface at the usual height. In addition, like any table that is not used, they pose an obstacle there.

The latter naturally also applies to the complicated tables mentioned earlier, which are provided with a driven endless assembly belt or chain. These are also very expensive and can be used in a more limited way because the containers for the product arranged on the belt or chain have limited dimensions and are therefore generally only intended and suitable to contain a single product of limited dimensions, apart from the fact that the run of the belt or chain through the container, the curves, loops, etc. of the type and dimensions

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also imposes restrictions on the product to be assembled.

Assembly tables of this complicated type are by no means universally applicable and therefore only come into consideration for factories that make only one or one type of product with hardly changing dimensions, such as the watch industry. As a result, they are not or less suitable for industries with a very different and often changing product range, where products of all kinds and with the most varied of dimensions are manufactured in relatively short periods and in large to very large, but predetermined limited numbers, whereupon a switch is made is on a new series of a product of a completely different type, which then also has completely different requirements, for example in terms of the number of workplaces per assembly aisle and thus in terms of the number and composition of the assembly tables required.

The invention aims to create a mounting table more generally Type that can be adapted to the requirements of the product to be assembled and which (or its elements) can be saved if not used (can) without taking up a lot of space.

For this purpose, the table according to the invention consists of an underframe, one Worktop and, if necessary, a mounting part, e.g. to accommodate Containers for components, for hanging assembly tools that may be excited, such as screwdrivers, drills, soldering irons or the like, and is characterized by the fact that the table consists of loose elements, which are suitable to be put together and attached to each other.

According to a preferred embodiment, the elements have been chosen in such a way that that they come together to form a table suitable for a single job permit.

Another embodiment of the invention provides an assembly table for has more than one job and is characterized by the fact that each Element has means that allow the setting up of elements next to or opposite one another and the fastening of elements to one another in a list that corresponds to the successive phases of a composition of the object to be assembled.

A suitable embodiment of the assembly table according to the invention

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provides the possibility of combining units for a single job and to be connected to one another to form a table for a number of jobs in a mutual composition and sequence, which is adapted to the different phases in which the assembly is to take place.

A very useful embodiment according to the invention shows a worktop, which is provided with means containing rollers or balls which are suitable for mounting slides thereon in a vertical position mutually extending directions seen from the assembly point, either move left or right, either forward or backward by hand.

Also, the means can contain rollers or balls to put on it arranged assembly carriage to move easily back and forth or forwards or backwards, be mounted in a separate element.

The worktop is preferably provided with guides for the passage of assembly slides to the left or right, which promotes a brisk run to the next job or phase.

According to the invention, buffer zones can also be used which are located between side by side or opposite one another, certain elements for a single job are attached, which buffer elements are intended for the eventual stationing of assembly slides.

Furthermore, the assembly table according to the invention can be provided with a so-called tunnel between each other, opposite workplaces with one Passage profile that is used to let through or station one or more Assembly carriage with objects to be assembled is suitable.

According to the invention, the assembly slit can, if necessary, in a desired Position that is suitable for the assembly work to be carried out, are fixed, which position, for example, by the location of the existing pneumatic or electrical device can be determined, land from the workplace and preferably with other parts of the body than the hand, e.g. elbow, foot or knee. The means for fixing can consist of a bar that is in the rest position between the rollers

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below the level of their upper side and that of the place of work can be moved up by suitable transmission means and to the job, in such a way that the assembly carriage between The bar and edge of the assembly table is pinched. It is also possible to lock this fixing electromagnetically by closing a circuit cause.

The assembly table can also have containers for parts to be assembled and for assembly aids such as screws, clamps, springs or the like, be provided, which containers according to the invention can be arranged by Attachment to a rotating element such as a wheel or the like, for example can rotate in a horizontal plane and can be moved from the workplace, either by hand or by switching on a motor driving the rotary element, whereby a container, which contains the desired parts or assembly aids, in front of the work site is rotated.

Such a rotary element can, for example, be rotatable about a vertical axis be which, according to the invention, is attached to a slide which is movable in a slot that allows the rotary element to be displaced Containers, e.g. from one work place to the opposite place, in such a way that the containers alternate from one work place to the other can be used from the other workstation to remove the parts or assembly aids from the containers Rotary element with containers can be pushed to the opposite side if desired and then the desired container appears by turning.

It is clear that the assembly tables according to the invention can easily be used in any Shape can be put together as needed while keeping the way of the Assembly, the number of jobs and other phases, such as drying, hardening or the like, can be adjusted, while with a suitable choice of Elements a minimum of storage space is required when not in use. Preferably the elements are then chosen in such a way that flat parts with modest dimensions stand out, which allow a tight packing as possible, E.g. a foot, individual supports for the left and right side of the worktop, a worktop, a roll holder (if necessary can be combined), armrests, tunnels, etc., during the Structure sum Attaching containers for parts - which structure is also the

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May contain lighting, as well as connections for gas, water, electricity, Compressed air, vacuum etc. and rails for hanging up during assembly if necessary energized tools - can be assembled in a similar way from elements, which also provide an optimal packing for storage enable.

According to a suitable embodiment, underframes, plates, structure etc. provided with connecting elements of one and the same type, making it possible to manufacture compositions of different types, e.g. connecting pieces, which consist of interacting parts with corresponding possibilities, in the sense that a protruding connector of the one part is received in a hollow connecting piece of the other part, both parts in such a way corresponding possibilities show that a good fitting or clamping connection can be made.

If now, for example, the plate in different places with such Connecting pieces is provided, the underframe or the feet or the structure can also be arranged in different places be, in the sense that depending on the shape, type and weight of the filled container with parts that are in the structure or in it Rotary element are attached, a stable system is created.

In this case, the connecting means can according to another embodiment also be provided with aids for connecting and conducting an electrical current, e.g. for the supply of energized tools, such as Drill bits, screwdrivers or the like that can be hung from the top of the structure in such a way that they can be easily removed from the Work can be mounted in the immediate vicinity of the unit to be assembled.

. The invention is explained on the basis of exemplary embodiments with associated figures. Show it:

Fig. Ί a perspective picture of an assembly table without structure for two jobs opposite each other;

Prop. 2 also a perspective picture of the assembly table (with structure), also for two workplaces opposite one another, but this time as

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so-called "resolved representation" indicated;

3 is a front view of a mounting table with a rotating element with containers for parts, assembly aids or the like;

4 shows a cross section of such a mounting table with a rotating element;

Fig. 5 is a side view of such a mounting table;

Fig. 6 is a plan view of a rotating member;

Fig. 7 is a front view and a plan view of an assembly carriage;

8 shows the schematic representation (seen from above) of an assembly table with two work stations, the work process being indicated by arrows;

9, 10 and 11 a schematic representation (also seen from above) of assembly tables with two or more workstations, resulting in different possibilities for composite elements.

In Fig. 1, the assembly table 1 for two jobs is made up of two elements 2 and 3 assembled, which are arranged opposite one another and with non-illustrated fastening means, e.g. screw bolts or brackets, are attached to each other. A tunnel 5 and a holder 6 (not visible in FIG. 1) with rollers on which an assembly carriage 7 can be moved.

Armrests 8 are also provided, between which the jobs are located are located.

In FIG. 2, the same can be seen in what is known as an "exploded view" Composition, but also the structure 9, the one not shown th suitable means, such as a pipe connection, attached to the lower part can.

In structure 9, contact sockets for the connection of electrical tools, Lighting, e.g. fluorescent tubes, rails for movable electrical devices, fasteners for hoses for compressed air and

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Vacuum, etc.

In Fig. 3 it is indicated how the rotary element 12 down at the top of the Tunnel 5 is attached, which in this case must of course be higher in order to be able to mount or mount the assembly carriage on it To be able to push products under the rotating element.

In Fig. 4 is in cross section over the line A-A schematically with arrows indicated that the rotary element can rotate about a vertical axis and can be moved from one to the opposite work station.

In Fig. 5 you can see this again in side view, from which it is clear that the rotating element protrudes as far out of the tunnel as is necessary to make a container with parts or assembly aids accessible.

Fig. 6 is a plan view of a rotary element 12 with containers attached to it 13 again.

In Fig. 7 is a schematic assembly carriage 7, suitable for seven to assembling objects, reproduced. The slide is flat at the bottom so that it can be moved unhindered over the roller plate, both towards it and here, to the left or to the right as well as to the front or to the rear, viewed from the workplace.

On the upper side there are clamping members 10, in which the to be mounted Objects are jammed.

The slide has standard dimensions that are based on those in question Dimensions of the table are matched. So the depth is such that when the roller plate is mounted on the countertop and the Slide is placed on it, the upper slide surface equals the edge of the table element, whereby the movement of the slide to the work site is locked. Furthermore, the length is approximately the same as the width of the table element per job, which in turn is chosen so that all objects clamped on the slide can be reached easily, i.e. with minimal movement, and with the components of the to mounting object provided x ^ can ground. The depth of the slide -is selected so that the carriage can be moved stably over the roller can and straight through the guide 11 to the side of the table to a next

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the reception table set up on the assembly table or, as in Figs. 10 and 11 specified, to another job for the next phase in the assembly process can be moved.

The tunnel 5 is also attached to the worktop 4 of the underframe in such a way that that the assembly slides can be guided, but unhindered, moved by hand to the opposite side.

The above precautions ensure that the slide either can be moved left or right, either forward or backward.

The working method is now as follows: suppose you place an object in two phases (see Fig. 9) on an assembly table for two workplaces together. The slides are fed from the left and from the (schematic specified) girl arrested, e.g. by pressing an unspecified Pedal operated, whereby a bar between the rollers is moved up and towards the work site, in such a way that the carriage is clamped between the bar and the edge of the assembly table. The girl now takes seven cases out of a storage container, which is either is located on the tunnel or in an easily accessible place on the structure and attaches it to the assembly carriage, e.g. in for this purpose, recesses in which the housing is accommodated can be, whereby they are sufficiently tight for assembly purposes. That Girl now takes out containers after pulling the rotating element towards her and the container with the desired parts or assembly aids has turned out the parts required for the first phase, puts them in the housings, fixes them or makes certain connections comes about, lets go of the pedal, whereby the bar disappears between the rollers and the slide becomes movable. Then the girl pushes manually move the sledge away from you into the tunnel towards the girl who is at the opposite point and move a new one Slide from her right side towards you between the guides until the slide is in the correct position in front of her and repeats what happened before.

The next phase in assembly takes place on the opposite side the job just described, where the girl sitting there pulls the sledge with the parts assembled in the first phase towards her to the edge of the

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Assembly table, then the slide is locked by a pedal and then attaching parts in a similar way as in phase 1.

After completion, she pushes the slide to the right by hand, whereby the slide leaves the assembly table, e.g. to a finished one Table for finished products, where they are taken out of the carriage and the empty carriage is returned to the starting point.

It is clear that the directions are chosen depending on the existing need can be. It is thus conceivable that the carriage moves to the left in FIG. 9 so that they can be emptied from the same table are fed from empty sleds for phase 1.

In Fig. 10 another arrangement is chosen which contains four digits, two of which are occupied. At I empty carriages are fed at II filled with products to be assembled by the girl sitting there will. After completing phase 1, she pushes the sledge into the tunnel, so that slides appear in position II, which are ready for final assembly by the second girl who occupies position IV. To During the final assembly there, it takes the finished products from the slide and places them, for example, on the tunnel, from where they can be picked up by others and she pushes the empty sledge in front of her Position I, etc., ■

In Fig. 11 is a table with six places and three occupied by girls Positions shown. At I empty carriages are fed, at II follows the first assembly phase, whereupon the girl there takes the sled does not push through the tunnel to position V, but to the right to position III not occupied, which serves as a buffer. From there pushes the girl at II takes the sled through the tunnel to position IV as soon as the girl sitting there can receive a sled again. About the In position V, the latter girl pushes the sled from hers Viewed from position, right to position VI, where the third and last phase takes place, the slides are emptied and the empty sledges through the tunnel can be pushed back to position I.

It will be clear that numerous modifications are possible. So you can between the two elements as shown in Figs. 1 and 2, Attach intermediate elements so that larger tunnels can be used

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and a larger space for storage of sledges between two each other opposite workplaces arise, which occurs in the event of a fault, e.g. in the supply of parts, or if there is a phase without Work, e.g. a dry phase, is to be inserted, can be important.

It is clear that with the right choice of connections and fasteners the elements can make a quick change in the arrangement among themselves. Snap connections are thought of at one element is provided with a hook and the other has an eyelet with a bracket, the latter by turning it over 180 the eyelet placed over the hook tightens (see e.g. for ski boot connections or the like).

This type of connection is only given as an example; let it think of many types of connections that allow a quick assembly of an assembly table according to the invention, such as magnetic.

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Claims (18)

EXPECTATIONS 1. Assembly table ■ for the serial assembly of components assembled Products, which table consists of a base frame, a worktop and, if necessary, a mounting part, e.g. to accommodate Containers for components, for hanging assembly tools that may be excited, such as screwdrivers, drills, soldering irons or the like, characterized in that the table is made up of loose elements suitable for being joined and fastened together to become. 2. Assembly table according to claim 1, characterized in that the elements have been chosen so that they can be combined to form a table suitable for a single job. 3. Assembly table according to claim 1, intended for more than one job, characterized in that each element has means for setting up elements next to or opposite one another and fastening them of elements attached to each other in a set-up that allows the successive phases of a composition of the to be assembled The subject. 4. Assembly table according to the preceding claims, characterized in that that units for a single job to a table for a number of jobs in a mutual composition and Order the different phases in which the assembly will take place is intended to be adapted, assembled and connected to one another. 5. Assembly table according to claim 1, characterized in that the worktop is provided with means that contain rollers or balls which are suitable for mounting carriage located thereon in perpendicular mutually extending directions seen from the job, either to the left or to the right, either to the front or to the to be moved by hand at the rear. 6. Assembly table according to claim 5, characterized in that the means the rollers or balls contain, form a separate element that is suitable for placement on the worktop. 809842/1102. ,. _{| V} " ORIGINAL SMc 'Oi 7. Assembly table according to the preceding claims, characterized in that that the countertop on both sides with guides for letting through an assembly slide is provided. 8. Assembly table, consisting of various elements for more than one Workstation according to one of the preceding claims, characterized in that it consists of elements intended for a single one Job, consist of one or more buffer elements, which are arranged between side by side or opposite each other, for a single job specific elements are attached, which buffer elements intended for the preliminary stationing of assembly sled are. 9- assembly table according to the preceding claims, characterized by a so-called tunnel between opposing workplaces with a passage profile that is used to let through or station a or several assembly slides with objects to be assembled is suitable. 10. Mantage table according to the preceding claims, characterized by Means that can fix the assembly carriage in front of a single job. 11. Assembly table according to claim 10, characterized by means that Fixation of the assembly carriage, from the work site and with other body parts than the hand, e.g. Elbow, foot or knee. 12. Assembly table according to claim 7, characterized by means for fixing of the assembly carriage, consisting of a bar, which is in the rest position between the rollers below the level of the upper side is located and from the workplace by suitable transmission means can be moved up and to the job, in such a way that the assembly carriage between the bar and the edge of the assembly table is pinched. 809842/1 102 13. Assembly table according to claim 7, characterized in that the fixing takes place electromagnetically and the magnet is excited from the workplace by closing a circuit. 14. Assembly table according to one of the preceding claims, characterized in that that the containers for parts to be assembled or assembly aids, such as screws, clamps, springs or the like, are housed in a rotary element that moves from the workplace can be. 15. Assembly table according to claim 14, characterized in that the axis, about which the rotating element can rotate, is movable e.g. in a slot made in the underside of the cover plate of the tunnel is, in such a way that the rotary element is movable from one place to another, for example the opposite work place. 16. Process for the serial assembly of components assembled Products using an assembly table according to the preceding claims. 17. Element for building an assembly table according to the preceding Claims 1 to 15. 18. Assembly carriage, suitable for use in assembling products on an assembly table according to claims 1 to 15 and in the method according to claim 16. 809842/1102