CN110549167A

CN110549167A - Production system and components thereof

Info

Publication number: CN110549167A
Application number: CN201910897849.6A
Authority: CN
Inventors: 约根·硕劳; 马克·莱韦伯; 米歇尔·本德; 塞巴斯蒂安·海赞; 施特芬·施毕斯
Original assignee: Thomas Magnete GmbH
Current assignee: Thomas Magnete GmbH
Priority date: 2014-10-05
Filing date: 2015-10-05
Publication date: 2019-12-10
Also published as: CN107107284B; EP3204317A1; CN107107284A; WO2016055041A1; DE202015000787U1

Abstract

The invention relates to a coil assembly for a production plant or line, comprising a support (51) for holding a plurality of coils (52), which coils (52) are arranged next to one another for winding up individual components of a supplied blister strip, wherein the coils (52) each have two circular side coils (52 a) which define a tube core (52 b) on their end faces. The support (51) according to the invention has two support shafts (53) radially supporting at least one coil (52), the coil (52) being rotatably mounted on the support (51), the coil assembly being given great flexibility by virtue of the above-mentioned construction.

Description

Production system and components thereof

Technical Field

The invention relates to a production device, which comprises a frame and a rectangular vertical support leg consisting of four right angles. The invention also relates to a workstation, in particular for a production plant or line. The invention also relates to a group of coils, mainly for use in workstations, in particular in production plants or lines, comprising a support for a plurality of coils arranged side by side for rolling up individual components placed in a blister strip. The invention also relates to a method for producing an at least approximately rotationally symmetrical assembly using a plurality of individual components and to an assembly produced thereby.

Background

DE 19741671B 4 describes a production plant consisting of a plurality of work stations and having a box which can be transported on transport carriages, while a plurality of work stations can be arranged along a conveyor belt in the production plant. A disadvantage of the existing production plants or of the existing work stations is that they must always be arranged in groups along one conveyor belt, whereby the work stations form part of the production plant or production line, so that when a work station is replaced, the corresponding production plant must be taken out of operation. At each retrofit, the production line or production equipment needs to be completely reinstalled and the workstations are built into modules in the production line and can then be recycled in a different order. A further disadvantage of conveyor belts is that the circular parts cannot be stationary due to vibration and/or inertia and therefore collide with each other and may even be damaged.

Proven practice shows that existing workstations are installed in production plants for the production of circuit boards, wherein the workstations connect a coil assembly, which is provided with a plurality of coils arranged side by side in a rack, in which coils a blister strip is provided for the supply of components, in particular electrical and electronic components, which are to be mounted on the circuit board. Here, the conductor circuit is arranged along a transport path, for example mounted on a conveyor belt, and is usually designed as a large circuit board without end faces, while an operating device will load the circuit board with the supplied components. The disadvantage is that the production plant has to provide a transport device for the continuously processed large circuit boards and the individual small circuit boards, and that production can only be carried out normally in the case of a normal transport of the circuit boards.

Disclosure of Invention

The object of the invention is to develop a production plant or workstation or coil assembly or a method for producing at least approximately rotationally symmetrical assembled parts using a plurality of individual components with a high degree of flexibility.

Further, the present invention should also be able to reduce the time until the production line is set up and started, as well as reduce the production tooling time and assembly time. While also minimizing floor space and maximizing cleaning and quality issues.

The object is achieved according to the invention by a production plant or workstation or a coil assembly or a method for producing at least approximately rotationally symmetrical assembled parts, which is set up according to the features of the independent claims.

According to one aspect of the invention, a production plant is created, in which a frame with four rectangular vertical legs or uprights is included, said four legs being divided into two pairs, connected to each other at their upper ends with a top horizontal cross beam, the two pairs of legs being also spaced apart at the top horizontal cross beam, while the lower ends of the legs are connected to each other with a bottom horizontal cross beam, and the two cross beams are connected to each other by two longitudinal beams parallel to each other and perpendicular to the horizontal cross beams, respectively. The advantage of the production device formed by this design is that two counter-recesses are provided in the area surrounded by the four vertical legs, which can be used for mounting the work station and facilitates the exchange of the work station. In this way, the two longitudinal beams can be connected to one another in the form of a work platform by means of a cover plate, and energy supply devices, such as compressed air or electrical power supply devices or cooling units, can also be arranged on the top cross beam or the longitudinal beams. They are typically connected to machines or handling equipment connected to the roof rails. Furthermore, a power supply device, i.e. at least an electric power and/or compressed air supply device, is provided below the bottom longitudinal beam for supplying power to the work station.

The frame is of steel construction and has longitudinal beams, transverse beams and legs with a rectangular or square cross-section, as required by the application, so that the frame as a whole is highly rigid and stable. Depending on the application, the lower end of the foot is also provided with a height-adjustable helical spacer which also ensures a precise horizontal alignment of the frame and compensates for possible unevenness of the ground. At least one work station can be suspended on at least one of the two bottom stringers as required by the application. Usually, at least two work stations can be hooked or linked on both sides of the bottom stringer, so that the production plant can be linked to a plurality of work stations, which here can be referred to as loading or unloading work stations, or work stations in the strict sense of the term, that is to say the shaping or machining of workpieces by means of a machine, or else the testing by means of a testing device.

Selecting a work station or a machine or a device installed therein according to the requirement of the application, wherein the selectable objects comprise: the device comprises a part supply device, a profiling station, a laser welding station, an optical circulation stirring station, a sealing ring joint station, a sealing performance detection station, a function test station and an ultrasonic welding station. It is noted that a plurality of the above-mentioned work stations may be connected to the production plant, for example, when the production plant is not intended for a single operation, but for a mixed operation.

The longitudinal beams of preferably two transverse beams parallel to each other are mounted in a common horizontal plane. Alternatively, the two longitudinal beams can also be mounted on different horizontal planes, for example lying one above the other. Preferably, the two longitudinal beams can be separated from each other by a gap, so that each longitudinal beam can be surrounded by the attachment. Instead of the gap, other openings, such as holes or slots, may be provided.

Preferably, at least one handling device can be connected to at least one of the two roof rails. Here, the handling device can be connected to the two roof rails, in particular fixed in the gap between the two roof rails, usually with the handling device or the handling system connected to the outwardly facing side of the roof rails. Such processing devices are used to receive parts, intermediate products or end products from a workstation or to distribute them to workstations, which may also be installed individually as buffers or buffers in the production facility. The handling device can also be used for the transport of intermediate or final products, thus eliminating the conveyor belt, which is often prone to high contamination and to affecting the precision of the assembly and forming work of the production plant due to its vibrations. Thus, the production and transport processes in the production plant can be integrated into the same movement process.

The extension in the direction of the longitudinal beams of the production plant is greater than the extension in the direction of the transverse beams, as required by the application. This results in a rectangular top view, so that two recess regions are provided in the center region of the longitudinal beams provided in the production plant, which recess regions can be used for the installation of the work station.

Preferably, a workpiece holder is attached to the bottom stringer, so that individual components can be used, for example, to extract from the coil package, to produce the composite component without the need for handling devices to hold the components.

An energy supply and/or a system controller is provided below the bottom longitudinal member and/or above the top longitudinal member, as required by the application. The system controller is connected to the workstation's workstation controller and loads therein the instructions that the workstation needs to process.

Here, a plurality of production facilities arranged one after another in the longitudinal direction may be combined into one production line, but a conveyor belt or the like is not run in the direction thereof, but a line along which various processes from individual components to intermediate products to final products, processing and finished product inspection, and the like are automatically performed in order is basically constructed, while reducing the cycle time. The production line is very flexible, since its production facilities are arranged in series one after the other, even in cases where the production line needs maintenance or is to be retrofitted for the production of other products. In the case of simple production, unnecessary workstations can even be skipped directly without dismantling them. This creates a production line without running the conveyor belt in the direction of its stringers and without the need to reset and accept it by the customer each time it is converted for processing other end products. This creates an optimized production line for the production of various products and allows different products to be produced along the line depending on the degree of loading without having to reset, calibrate and check the line when changing products. According to the requirements of the application, the products can be transferred along the longitudinal beam direction without using a conveying belt; this means that the product or component, whether it is directly or connected to at least one workpiece holder, essentially only has to be transferred from one processing device to another. In this way a continuous flow of product is achieved, which is independent of the conveyor belt, i.e. there is no need to set a continuous conveying speed nor to permanently start and brake. Here, the conveyor belt can be arranged only transversely to the longitudinal beams.

according to one aspect of the invention, a production plant is created which can be used for producing different assemblies, comprising at least one handling device with a clamping system, wherein each assembly is assigned at least one specific workpiece holder and/or one specific die, and the workpiece holders of several different assemblies are arranged in a column, and the column can be moved in order to move the workpiece holder corresponding to the selected assembly to the corresponding position for carrying out the operation. The advantage of this design is that multiple products can be produced on the same line and if the line is confirmed by customer approval, no disassembly is required when other products are produced on the line. Conversely, the workpiece holder is placed in a preferred position of the processing device or its holding system, possibly also on the workstation, and the respective workpiece holder or the respective mold is brought into the selected working position, depending on the type of component to be produced. In this way, there is no need to remove individual mould devices before commissioning, but the production line has permanently confirmed that approval is granted for each individual component. Furthermore, a particularly simple adaptation is possible, since the handling device or its clamping system can automatically perform the movement of the rows in accordance with corresponding commands of the controller. This allows new assemblies to be retrofitted during operation and in a short period of time without the need to manually replace parts of the production line.

The rows may be mounted on a common support, as the application requires, so that when the support is moved, all of the workpiece holder blocks are moved simultaneously. Moving the cradle is less risky than moving a loose column because the cradle can only move in one direction or the other as a whole. The holder is thus provided with a longitudinal guide rail, which also supports all the workpiece holder seats.

According to a further development of the invention, the column is moved by the processing device, so that no separate drive is required for moving the column or the support. However, the column should preferably be provided with a separate drive and by means of which the column is moved. The separate drive can be activated at the time of replacement production so that the columns change in their position to provide a matching and homogenous work holder nest. It can monitor the correct position by means of sensors.

A system controller is provided which automatically adjusts the workpiece holder as required by the application when retrofitted to other products. This has the advantage that the input column of the system controller already causes a retrofit of the production line. Furthermore, during a restart or cold start, accidental production of the wrong component or use of the wrong workpiece holder can be avoided by this automatic adjustment.

The workpiece holder may be mounted on a pre-load station, a machine, or a delivery station between two processing devices and receive the interleaved stack of parts, as the application requires. By being placed on the delivery station, the handling devices or their clamping systems can be operated quickly, since they do not require a long fixing of the individual components in their clamping systems, thereby reducing cycle time.

alternatively, the workpiece holder may be inserted into a press die having a semi-finished product as a workpiece, and subjected to a forming process or a further process. The system controller will then ensure that the dies, e.g., the stamping dies, are shaped using a stamping force corresponding to the respective component. Usually, a single run is carried out in a production plant, i.e. only one component is always produced at the same time, so that only the parts corresponding to the component are supplied by the coil pack and the finished component is stored at the finished product output (e.g. a so-called pallet) after the pre-assembly, shaping and final assembly steps have been completed. It is however also possible to produce at least two different components or more components simultaneously, in particular when the production plant or line is sufficiently long. For example, a production line may include multiple production facilities, and multiple inputs where the same assembly may be produced twice, or two different end products may be produced from two coil groups and different components.

On the group of reels used to supply the corresponding components of the assembly, the blister strip is inserted, according to the needs of the application, into a feeding device which lifts the covering film of the blister strip and then, after removing the components from the corresponding cavities, cuts off the free projections of the blister strip and pulverizes them for recycling. The feeding device ensures that the blister strip is inserted correctly and that the components contained therein are delivered correctly. A first visual quality check may be performed first in the region of the feed device.

According to one aspect of the invention a workstation is created, primarily for use in the production plant or line described above, comprising a housing with a protruding flange area for mounting in the production plant. The flange area allows the work station to be detached from the production facility or to be connected to the production facility when maintenance or repair work is performed. The connection mode is as follows: the work station is stored on a height-adjustable transport or lift truck in order to bring it into a raised position in which the projecting flange region is raised above the bottom longitudinal beam of the production plant and is connected to the bottom longitudinal beam of the production plant by lowering the transport truck. In this way, the work station no longer touches the ground, so that a planar alignment of the production device is also achieved on the work station without special adjustment work. By the overlap of the flange region and the longitudinal beam, a stable and compact connection is established, so that a compact design of the workstation is achieved.

The flange region has two downward centering pins, which can be inserted into corresponding bores in the longitudinal member, and the flange region and the further bores in the longitudinal member can be used for the screw connection of the two components, as required by the application.

Preferably, an upright end wall for delimiting the flange region can be mounted perpendicularly to the flange region, which at the same time forms a seat. If the flange region bears completely against the longitudinal member, the end wall also bears against the longitudinal member, which is provided with a rectangular cross section as required for the application, in order to prevent an abnormal bending of the workstation. However, the end walls may also be spaced from the stringers, for example if provided with a flat intermediate gasket.

If a workstation is connected to the production facility, the transport or lift car can continue to be lowered and pulled out from under the workstation for operator access to the workstation while producing the final product.

The end wall is provided with an opening for energy supply, such as electric power and compressed air supply, according to the application requirements, so that the control cabinet of the workstation is supplied with electric power through the opening. This eliminates the need for separate power supply to the workstation and provides the operator with a trip hazard warning of the corresponding power supply line.

Depending on the application, the housing has a side wall, to which a switch cabinet is connected by way of a guide. The side walls are generally perpendicular to the end walls and the flange region, and at least parallel to the table of the flange region. If several workstations are provided in succession in the production line, the side walls of adjacent workstations close the passage of the switchgear cabinet, so that the switchgear cabinet can be connected to the side walls by means of the guides, which has the advantage that the switchgear cabinet can be pulled out during the execution of work such as inspections without the need to remove the workstations from the production facility.

The guide device should preferably be designed as a telescopic rolling guide with two guide rails, which are arranged one above the other and parallel. This has the advantage that the switch cabinet can be pulled out of the pulled-out position and pushed back without any difficulty. In this way also adjacent stations can be closely juxtaposed, while the individual switch cabinets remain accessible. Depending on the application, an emergency switch is provided on the end wall, and a handle is also provided on the end wall for pulling out the switchgear cabinet. In the fully pulled-out and/or fully pushed-back position of the switchgear cabinet, a rail locking device can be provided to prevent accidental movement.

It is preferred to provide a switch cabinet access channel on the side opposite the rail, which channel can be opened completely instead of just one slot when the switch cabinet is fully pulled out (which can be easily achieved using a sufficiently long telescopic rolling rail, such as the one used in dishwashers or furniture drawers).

The housing may have a work surface where a machine, such as a punch or laser welder, may be mounted, as desired for the application. The respective controllers are installed in the above-mentioned switchgear cabinet, wherein the individual moulds or mould sets of the machine can also be installed in the working surface or flange area.

In top view, the tank can have a rectangular basic shape, with the flange region being located on the narrow side of the rectangle. This arrangement is particularly space-saving and is sufficient to achieve a stable and torsion-resistant connection between the workstation and the production device. However, it is also possible to connect the workstation to a production facility, the flange area of which is located on the broad side of the rectangular shape. In this case, it is not absolutely necessary to connect the switch cabinet to the cabinet via a roller rail, since the wide side of the switch cabinet with the passage can also be designed to face the operator.

Depending on the application, the tank consists of a plurality of steel plates which are connected to one another and can usually be bolted or welded together, so that it is highly rigid and does not cause vibrations or torsions which affect the tolerances of the product even when mounted suspended on the longitudinal beams of the production plant.

According to one aspect of the invention, a set of coils is created, which is intended primarily for use in the above-mentioned work station or in the above-mentioned production plant or line, and which comprises a support for placing a plurality of coils, which are arranged side by side for winding up individual components placed in a blister strip, and which each have two circular side discs which form the tubular core of the end face, and which support has two bearing shafts which bear at least radially against one coil, in which position at least one coil is supported. This results in a coil pack which has the advantage that even relatively heavy components can be supplied via the blister strip, without the weight of the individual coils or their wound blister strip affecting the unwinding from the holder. According to the prior art, the coil is usually located on a support base, the support of the two supporting shafts ensuring a safe and reliable radial control of the coil, avoiding the stick-slip effect that can occur, and the support not being damaged by the relative movement of the coils. The coil is mounted mainly on two support shafts, wherein the weight force of the coil is also substantially vertically conducted.

Depending on the application, the two bearing shafts support not only one coil but also more coils radially, so that a plurality of coils can be mounted next to one another on the support. Unlike the prior art, in which reliable operation is achieved by coiling a shim between discs that oppose each other, in the present invention, radial control results in each coil being movable at its own speed.

Depending on the application, the bearing shaft has at least one radial projection, the extension of which in the axial direction of the bearing shaft is designed such that it can be adjusted at least between the two side discs of a coil. These projections thus also rest against the inside of the side discs of the side coils and are guided axially, so that no separation layer has to be provided. Preferably, the bearing shafts have radial projections, as can the coils arranged in the carrier, so that all coils can be supported both radially and axially on both bearing shafts.

The radial projections do not all have to have exactly the same extension or width in the axial direction of the support shaft, coils of different widths can be provided on the same support, and the support shaft can be designed as a modular structure consisting of individual support shaft segments, as required by the application, to suit the specific requirements of the support coil.

The radial projections have radial chamfers at their ends, as required by the application, so that the projections do not form sharp-edged steps, but rather determine the center of the disk by means of phase-defined slopes.

Preferably, the bearing shaft should preferably be designed as a hollow body, so that it has a not too high mass. The bearing shaft is usually fixedly mounted, that is to say not a rotating part. However, it is also possible to provide a rotating support shaft if necessary to support the rotational movement of the coil.

Depending on the application, the bearing shaft should be of steel construction, so that the coil with the blister strip parts mounted thereon will flex only slightly under relatively high load conditions.

The bearing shafts should preferably be mounted at the bottom of the stand and at a distance from each other, which should be at least half the diameter of the side disc of the coil. Thereby a particularly reliable support of the coil is achieved.

The support of the coil assembly should preferably be mounted on rollers in order to allow a quick change of the coil assembly. For this purpose, a guide handle can also be connected to the coil assembly. If all the components in the respective blister strip are consumed, resulting in at least one coil being empty, replacement work is required. In order to avoid having different lengths of blister strips with components on each coil, it is envisaged that a batch of components placed on a coil set or a rack is used for substantially the same process time. Alternatively, the individual coils can be replaced during operation, in which case two coil groups can be connected to the production device and the supply of components is alternately ensured by them, or components can be redundantly supplied on the same coil group, that is to say two coils with the same components are included on the same coil group. In order to minimize assembly time, it is desirable to design a production line that can be loaded with multiple coil groups in a single operation.

According to one aspect of the invention, a method has been developed for making a composite part, in particular a magnetic assembly, at least close to rotational symmetry, using a plurality of individual parts, comprising the steps of feeding the parts to a coil of wound blister strip, installing the assembly by sequential extraction, and inserting the parts by means of at least one handling device equipped with a clamping system. The method allows the automated production of rotationally symmetrical modular components at low cost, without manual steps.

The insertion of the components is preferably carried out in a workpiece holder which is adapted to the component parts forming the housing. The component housings are also fed to the blister strip, so that no separate feeding unit, such as a conveyor belt, is required for feeding the housing components separately. The handling device equipped with the clamping system takes the component parts and places them in the workpiece holder in a rational order to form a primary composition or intermediate product, which is then joined into a unit by a forming process, such as stamping.

Therefore, after the mounting step is completed, the composite part should be at least partially deformed, in particular profiled, in a workstation. In this way, the parts inserted in the workpiece holder are not lost.

This is particularly advantageous in that the displacement of the components or assemblies is carried out exclusively by the processing equipment, so that no additional conveying system, such as a conveyor belt, is required. In this way, problems with vibration, dust and noise associated with the conveyor belt are avoided. Rotationally symmetrical parts are difficult to transport by means of conveyor belts, but can be transferred easily by means of various handling equipment, by mutual transfer or by transfer to the workpiece holder, since the angular orientation has little or no significance here.

The combined parts can be designed as components containing electromagnetic devices, in particular electromagnets, electromagnetic actuators, electromagnetically operated valves for electromagnetically driven metering pumps, electromagnetic regulating systems, electric motors, etc., as well as components and magnetic components of the above-mentioned combined parts, as required by the application. The above-mentioned modular elements are substantially rotationally symmetrical, nearly cylindrical and certainly of elongated design, and can therefore be assembled with the same handling device or gripping system or be fed to the various work stations. The processing steps of the workstation are also generally similar. Furthermore, a common product family can be formed, which also includes other electromagnetic drive components of similar structural design, some of which use the same components and manufacturing processes. Due to the commonality of the components, for example, the assemblies each include an electromagnetic device, the series of various related products can be produced on the same production line.

The gripping system of the handling device should preferably have at least two grippers, more suitably three grippers, which are arranged rotatably around the axis according to the kind of star-shaped gripper. In the two-grip structure, the angle between the grips is 180 °, and in the three-grip structure, the angle between the grips is 120 °. More than three fingers may be provided, for example four, five or six. However, normally three fingers are sufficient, and often even two.

Preferably, all handling means or handling systems are identical and/or are at least provided with the same number of grippers, so that the production device can easily be adapted to the various components. Preferably, the handling device is designed as a robot system and/or an axle system and is preferably connected to the top longitudinal beams of the production plant. In this way, the clamping system can be brought into the area of the work station and, according to the needs of the application, the handling devices should be suitably spaced apart from each other so that they can transport the components or pre-assembled components directly or via a delivery station as a work piece holder.

Preferably, one of the parts transported by the blister strip is a housing part, so that the housing part does not have to be transported separately into the production process.

The processing means are connected to the production facility, to which at least one workstation is also connected, as required by the application. A particularly space-saving arrangement of the mating parts is thereby achieved.

The assembly test should preferably be performed after at least one process step in order to ensure statistical process control during the production process.

Preferably, the assembly means is a magnetic assembly comprising at least two, preferably three or four of the following components: a sleeve, an anchor bolt, a pole core and an anchor rod. Such magnetic assemblies are an integral part of many end products and the dimensions of the various components are different. In individual cases, the same component parts can be used in different magnetic assemblies, for example in the same anchor rod.

Depending on the application, for example, the cover film of the front compartment of the first blister is first removed and the sleeve is removed therefrom by the handling device and subsequently placed in the corresponding cavity of the workpiece holder. Subsequently, the covering film of the front compartment of the second blister is removed, the anchor bolt is removed therefrom and inserted into a sleeve placed in the workpiece holder, and the sleeve, because its rotationally symmetrical inner circumferential length exceeds the rotationally symmetrical outer circumferential length of the anchor bolt, can accommodate the anchor bolt without the need to apply force or rotate a part beforehand; in fact, the anchor bolt slides easily into the sleeve due to its own weight, without the handling device having to exert any force. Thus, it is also possible to use handling means which allow a certain clearance, for example in order not to cause damage when touched by an operator. Subsequently, the covering film of the front compartment of the third blister is removed and an anchor is removed therefrom by the handling means and then inserted into the coaxial hole of the anchor loosely situated in the sleeve. Subsequently, the covering film of the front compartment of the third blister is removed and a pole core is removed therefrom by the handling device and subsequently placed over the anchor bolt in the sleeve, wherein the central hole of the pole core is penetrated by the anchor bolt. The inner circumference of the sleeve can have annular steps in order to space the rotationally symmetrical pole core from the anchor bolt.

Since the handling device has a plurality of grippers, for example three, these processes can preferably be carried out partly in parallel: the first handling device grips the sleeve and the anchor bolt with the first and second gripper in succession and inserts them into the workpiece holder. Grabbing occurs almost simultaneously. The second handling device grips the pole core and the anchor rod with the first and second gripping fingers and inserts them into the sleeve provided with the anchor bolt. The third gripper of the second handling device then takes the sleeve with the anchor bolt, pole core and anchor bolt out of the workpiece holder and places it in the next work station without dropping the component. During this time, the next sleeve is again loaded into the workpiece holder. The individual steps can be easily assigned to the grippers and the handling device, so that the first and second grippers can always hold one or two empty sleeves, while the third gripper of the same handling device takes away the filled sleeves. The other handling device then grips the other three parts by its three grippers. The production plant can also be operated with only one processing device.

The preassembled magnetic assembly is profiled in a profiling station after assembly and presses the pole core onto the sleeve. The anchor bolt cannot be pulled out of the sleeve with the closed bottom opposite the pole core. In the thickness process, other components are mounted in the magnetic assembly, such as coils, housing parts, power and leakage lines, and the like.

Further advantages, features and refinements of the invention are specified in the following description of preferred embodiments and the dependent claims.

Drawings

The invention will be described in detail below with reference to a preferred embodiment and with reference to the accompanying drawings.

FIG. 1 shows a top view of a production line equipped with a plurality of production devices.

Fig. 2 is a perspective view of a frame of the production apparatus shown in fig. 1.

Fig. 3 is a side view of the production apparatus shown in fig. 1.

Fig. 4 is a perspective view of the production apparatus shown in fig. 3.

Figure 5 is a side view of the production apparatus of figure 1 rotated 90 deg. relative to figure 3.

Fig. 6 shows a top view of a work station of the production plant shown in fig. 1.

FIG. 7 is a top view of a coil assembly of the manufacturing facility of FIG. 1.

Fig. 8 is a front view of the coil assembly of fig. 7.

Fig. 9 shows a cross-section of the coil set of fig. 7 taken along line IX-IX.

Fig. 10 is a side view of a portion of the support shaft of the coil set of fig. 7-9.

FIG. 11 is a longitudinal cross-sectional view of a portion of the support shaft shown in FIG. 10.

Figure 12 is a schematic view of the work piece holder of the production equipment of figure 1 and a detailed view of the manufacturing process of the assembly of the production equipment of figure 1.

Figures 12A-12C illustrate enlarged detail views of the workpiece holder of figure 12.

Figure 13 shows a station of the production plant of figure 1 with a plurality of workpiece holders and dies.

Detailed Description

Fig. 1 shows a sectional top view of a production line 1 with a plurality of production devices 10 arranged one behind the other along its narrow sides. A plurality of workstations 30 are connected to each production plant 10, including one or two workstations designed as a coil group 50. These work stations are equipped with different equipment, such as stamping presses, laser welding machines, roundness measuring machines, etc., so that the work stations 30, which are referenced 30 in fig. 1, are not all identical, but rather a specific production step is performed at each work station 30.

As can also be seen in fig. 1, each production installation 10 is formed by a separate frame 11, which will be described in more detail below. Furthermore, at least one handling device 20, which is equipped with a clamping system 20a, is connected to the machine frame 11, the radius of rotation of which is indicated by a circle in fig. 1.

Fig. 2 shows the production plant 10 of fig. 1 with a bare frame 11, i.e. without additional equipment such as workstations, energy supply devices, etc. It can be seen that the machine frame has four vertical column legs 13 which are rectangular in configuration and are designed with a substantially square cross section, and is located on a height-adjustable, bottom-fixed end piece 13a which is screwed to the legs 13 by means of bolts. The four legs 13 are divided into two pairs which are connected to one another at their upper ends to a top horizontal cross member 14, and the two pairs of legs 13 are spaced apart at the top horizontal cross member 14 and at the lower ends of one of the legs, i.e. the bottom surface, on which the height-adjustable end pieces 13a are mounted and which are connected to one another to a bottom horizontal cross member 15. The connection is effected by means of screws, welding or the like, in the present embodiment the cross members 14,15 are welded to the legs 13. It can be seen that the cross-members 14,15 also have a substantially square cross-section.

The two transverse beams 14,15 are each connected to one another by two longitudinal beams 16 which are parallel to one another and perpendicular to the horizontal transverse beam, and the parallel longitudinal beams 16 lying in a common horizontal plane are spaced apart from one another by a gap 17. The longitudinal beams 16 also have a square, and certainly rectangular, cross-section and are connected to the transverse beams 14,15 by means of welding, screws or the like. It can be seen that the top longitudinal beams 16 lie in the same horizontal plane as the top transverse beams 14, while the bottom longitudinal beams 16 lie in another horizontal plane spaced from and parallel to the above-mentioned plane with the bottom transverse beams 15. The legs 13 and the cross members 14,15 and the longitudinal members 16 are of steel construction and have a sufficient thickness to ensure full resistance to torsional deformation. It can be seen that in the region between the legs 13, which are spaced apart by the longitudinal beams 16, a space is provided in which the workstations 30 and other components necessary for production can be installed. It will also be seen that additional components may be mounted above the roof rails 16 and cross members 14. Finally, it can be seen that, due to the distance between the bottom longitudinal beams 16 and the bottom transverse beams 15 and the bottom region of the support legs 13, space is also provided for wiring and mounting of the energy supply device.

The production plant 10 shown in fig. 3 to 5 is equipped with a frame 11 and, connected thereto, work stations 30 and coil groups 50, one of which work stations 30 is suspended from one of the bottom stringers 16, and will be described in more detail below. It can also be seen that a work plate 16a is connected to the bottom longitudinal beams 16, which projects above the bottom transverse beam 15. It can also be seen that a further work station 30, which is designed as a blister strip conveyor and cutter and which will be described in more detail below, is attached to the bottom stringer 16 opposite the work station 30.

As can be seen from fig. 3, two handling devices 20 are connected to the top longitudinal beam 16, each of which has a clamping system 20a at the end. The clamping system 20a has a total of three grippers for gripping the component. A workpiece holder 60 is provided in the center of the region of the gap 17 of the longitudinal beam 16, so that the handling device 20 can place the component by means of the gripper system 20 a.

Above the roof rails, a frame 18 is mounted in which a power supply, including electric and compressed air supplies, and optionally a hydraulic fluid supply, as well as various cooling units, are provided. For example, the supply lines may be lowered from the ceiling so that these lines do not interfere with the operation of the production facility.

As can be seen from fig. 3, the workstation 30 is not arranged on the ground for supporting the frame 11, but at a distance. The box 31 of the workstation 30 is provided with a flange area 32 which is arranged from the top and fixed on the longitudinal beam 16 at the lower right in fig. 3. Perpendicular to this flange region 32 and the end wall 33 facing to the left in fig. 3 rests on the bottom longitudinal support 16, so that the angle formed by the flange region 32 and the end wall 33 of the box 31 remains stable with the longitudinal support 16, which is likewise angled. The flange region 32 extends to a work surface 34 on which a machine 40, in this case a punch, is mounted. The punch 40 is designed as a generally conventional electric punch and has a punch 41, which is arranged coaxially with the workpiece holder 61 and forms a bottom punch die.

As can also be seen from fig. 3, below the table designed as blister strip conveyor and cutter 30', which is also connected to the bottom stringer 16 via a flange region 32', a reel set 50 is mounted which is movable via rollers 51a, as will be explained in more detail below.

See the perspective view of fig. 4 and the side view of fig. 5 for more details regarding the production apparatus 10. As can be seen in particular in fig. 4, a system controller 18a, a power supply 18b and a cooling unit 18c are fixed in the frame 18.

Fig. 6 shows a top view of the work station 30 without the upper member of the punch 40. It should be noted that other machines may be mounted on the workstation 30, such as a laser welder, a concentricity tester, a leak tester, or other joining and forming machines. The workstation 30 includes a housing 31 having a protruding flange region 32 therein and extending generally horizontally. This flange area is used for mounting the workstation 30 into the production device 10 as shown in the above figures. For this purpose, the flange region 32 has two downwardly extending centering pins 32a and, in addition, four holes 32b for fastening the workstation 30 to the longitudinal beam 16 or to a work plate 16a attached to the longitudinal beam 16. By the hooks being mounted in the longitudinal beams 16, the work station 30 is not only fixed to the frame 11 of the production device 10, but also kept at a distance from the ground, so that no relative movements between the frame 11 and the work station are caused by vibrations. In addition, the workstation 30 is also accurately positioned relative to the handling device 20 attached to the roof rail 16, so that tolerances can be minimized. As a result, the production line 1 or the production installation 10 does not need to be equipped with an optical detection system during operation to determine whether the workstation 30 or the machine 40 mounted in this position or the placed workpiece holder 60,61 is in the correct position. An optical detection system may also be used.

The flange region 32 is mounted in an extended region of a horizontal work surface 34 which is provided with bores 34a,34b for connection to a machine such as a punch 40. It can also be seen that the end wall 33 lies in a plane perpendicular to the flange region 32 and the working surface 34 and extends to the narrow side of the tank 31. On the end wall 31, a bore 34a is provided, as shown in fig. 4, through which a power supply device, for example a cable 35, which is coupled to a switch cabinet 36 in the illustration, can be arranged. The holes 34a shown in fig. 6 are only indicated by dashed lines.

As can also be seen in fig. 6, the switchgear cabinet 36 comprises an electrical controller 45 of the machine 40, which is connected to the cable 35. The electrical controller 45 also contains software control instructions for the machine 40 and is connected to a system controller (not shown) via cable 35, so that not only is the energy supply via cable 35, but also to the system controller plane.

The switch cabinet 36 is provided with a cabinet door 36a on its longitudinal side for access to the controller 45. The switch cabinet 36 also has an emergency stop switch 36b, which is mounted on the narrow side of the switch cabinet 36 as an access channel for the operating personnel. A handle 36c is also mounted on the narrow side of the switch cabinet 36 for pulling out the switch cabinet 36, as will be explained in more detail below.

A side wall 37 is attached to the working surface 34 and the end wall 33 in a plane perpendicular to the end wall 33 and the working surface 34, and is designed to be of steel plate construction with both the working surface 34 and the end wall 33 of the flanged region 32. On the opposite side of the side wall 37, a web extension 38 is arranged parallel to the side wall 37 on the underside of the work surface 34 and extends to the height of the switch cabinet 36.

The switch cabinet 36 is located in the substantially rectangular box 31 and can be pulled out from the box 31. For this purpose, the guide 38 is fastened on one side to the side wall 37 and on the other side to the rear side of the switch cabinet facing away from the cabinet door 36 a. The guide means is designed as a rolling guide with two guide rails and the two guide rails are arranged one above the other, so that the two guide rails are respectively connected to the switch cabinet 36 of the cabinet 31, and the switch cabinet 36 does not contact the ground like the cabinet 31. The switch cabinet 36 can thus be pulled out of the cabinet 31 without any difficulty, and its cabinet door 36 opens after pulling out, in order to access the control unit 45. In this way, the workstation 30 can be of a relatively narrow profile design, so that a plurality of workstations 30 can be installed side by side in the production plant 10, while also providing easy access to the workstation controller without the need to place the switchgear cabinet outside the workstation.

It is clear that the flange area 32 is designed as an extension of the working surface 34 lying in the same plane, which can be achieved in a particularly simple manner, but it is also possible to provide the flange area in a position corresponding perpendicularly to the working surface 34, for example by providing a step. Similarly, the blister strip conveyor and cutter 30' are also provided with a flange region 32 ', so that a high degree of flexibility in the manner in which the work stations 30,30 ' are connected is achieved, and they can also be connected to the frame 11 of the production plant 10 in a different order. The work station is easily replaced because it is only necessary to loosen the bolts passing through the openings 32b and then remove the entire work station from the frame 11 with the lift truck. In this way, damaged workstations 30 and machines 40 may also be replaced quickly and easily. Thus, the entire production line 1 can also be easily modified to suit other products by replacing the work station 30, and advantageously, the work station 30 is mounted on the production line 1 in such a way that different assemblies can be produced without having to replace the entire work station 30 or the machine 40 mounted on the work station 30.

In the region of the working station 30, a workpiece holder 61, which will be described in more detail below in connection with the workpiece holder 60, can preferably be mounted on the working surface 34.

Details of the coil set 50 are shown in fig. 7 to 11. The coil set 50 has a support 51 on which a plurality of juxtaposed coils 52 can be placed or held in the top view shown in fig. 7. Coils 52 are used to roll up the individual components placed in the blister strip, wherein each coil 52 has two side discs 52a, and a tubular core 52b forming an end face. A strip of blisters is spirally wound on the core 52b to provide a component part in each blister seat. The blister strip is removed from the blister strip conveyor and cutter 30 'by rotating the coil 52 and the film covering the blister suction caps is removed from the blister strip holders in the area of the blister strip conveyor and cutter 30' so that the gripping system 20a grips the parts. The blister strip conveyor and cutter 30' ensures that the parts are always located in the area of the blisters for gripping by the gripper of the gripping system 20 a.

These parts are elongate, at least substantially or mostly rotationally symmetrical parts, which are fed transversely to the axis of rotation, so that the hand grip is always able to find and grip these parts in a given direction.

Due to the heavy weight of these components, a spacer is inserted into the support 51 between adjacent coils to prevent adjacent coils 52 from interfering with each other, for example when bent or otherwise defective. Moreover, since the components are of very high quality, the coil 52, which is usually moved in rotation above the blister strip, should be mounted as frictionless and reliable as possible on the shaft of the blister strip conveyor and cutter 30' in order to avoid damage or elongation of the blister strip. For this purpose, the support should have two supporting shafts 53 radially supporting the coil 52 for supporting the coil 52. The two support shafts 53 are arranged parallel to each other in a horizontal plane and spaced apart from each other in the horizontal plane so that they radially abut on the side disc 52 of which the coil 52 has a circular outer periphery, while a tubular core 52b of the coil 52 is provided in the middle of the axis 53a of the support shaft 53. The coil 52 is thus firmly placed on the support shaft 53 and the adjustment friction when rotating the coil 52 is only the friction between the support shaft 53.

If each coil 52 is provided with a separate support shaft 53, friction can be further reduced so that the support shaft 53 itself can rotate and the support shaft 53 rotates together opposite the coil 52. It is preferable to provide a plurality of independently rotatable support shafts 53 on one shaft and to support one coil 52, respectively, or to mount them to the shaft via rolling bearings so that each support shaft 53 supporting the coil 52 can be rotated together individually. Fig. 8 shows a front view of the coil package 20 without the front panel of the support 51, from which it can be seen that the coil 52 still continues to extend upwardly in the vertical direction and projects above the support 51. It should be noted that the speed of rotation of coil 52 will vary depending on whether the blister strip is remote from or adjacent to tubular core 52 b.

Fig. 9 is a schematic cross-sectional view of the stent 51 of fig. 7 taken along line IX-IX. As can be seen, the dashed lines indicate the circular outer circumference of the tubular core 52b of the coil 52 and the side discs 52a of the coil 52. In addition, it can be seen that the support shaft 53 provides radial support for the coil 52. The rollers 51a (see fig. 3) of the brackets 51 of the coil groups 50 are not labeled in fig. 9, nor are the arcuate folding handles 54 of the stroller-like design for transport (but visible in fig. 3).

As can be seen from fig. 7 and 8, two bearing shafts 53 can radially support a plurality of coils 52, i.e. one in the region of each radial projection 530. In the direction of the axis 53a of the bearing shaft 53, the radial projection 530 extends in the form of: the radial projection 530 may fit between the two side discs 52a of one coil 52. As can be seen from fig. 7, the projection 530 can also be designed to be narrower than the spacing of the two side discs 52a of the coil 52 in order to be inserted into the middle region. The supporting shaft 53 has a plurality of radial projections 530, so that a total of eight coils 52 can be arranged in the holder 51. In fig. 7 and 8, the radial projections 530 each have the same axial extension. However, the radial projections 530 of one and the same support shaft 53 may also have different axial extensions, i.e. different widths, in order to fit coils 52 of different widths in the holder 51.

Fig. 10 and 11 show enlarged side and longitudinal sectional views of a support shaft segment 53' constituting the support shaft 53. Here, the bearing shaft segments 53' are respectively plugged together in the direction of the axis 53a by means of connecting portions (not shown), as shown in fig. 11. These connections can be hollow cylinders with an inner diameter approximately corresponding to the inner diameter 531 of the bearing shaft section 53'. These connecting portions are surrounded by a frontal annular extension 532 of the bearing shaft segment 53', forming a form-fitting connection. As can be seen from fig. 10 and 11, on the radial projection 530 there is a chamfer 534 radially outwardly at the level of the front annular extension 532, which provides a continuous transition between the outside of the annular extension 532 having the smaller outer diameter and the radial projection 530 having the larger outer diameter. The chamfer 534 determines the center of the bearing shaft section 53' in the region between the side discs 52a of the coil 52, so that a displacement of the coil 52 in the direction of the axis 52a is avoided. The bearing shaft 53 thus also constitutes an axial support for the coil 52 by means of its contour.

It can be seen that the bearing shaft 53, which is composed of bearing shaft segments 53', is designed as a hollow body. Thus, a shaft or rod may be passed through the central hole 531 and thereby fix the support shaft 53 to the bracket 51. The support shaft 53 is of steel construction and is therefore hardly damaged during long term use and during relative movement with the heavy coil 52. These supporting shafts 53 are arranged at the bottom of the support 51 and have a distance which is smaller than the diameter of the side disc 52a, preferably at least half the diameter of the side disc 52a, and preferably slightly larger, in order to be able to stably fix the coil 52. As can be seen in fig. 9, the coil 52 does not contact the stand bottom 51 or other wall surface of the stand 51 and can therefore roll freely, due to the provision of the support shaft 53.

Fig. 12 shows a detail of a production device 10 which can be used for producing different components. There is shown an enlarged view of the work holder 60 of figure 1. The workpiece holder 60 has a support 63, which is movably arranged on the longitudinal beam 16 in the direction of the double arrow 64 by means of guide rails 63a fixed to the support 63. On the holder 63 in the direction of the double arrow 64, four different workpiece holder stands 601,602,603 and 604 are arranged side by side, and the workpiece holder stands 601 and 604 respectively match one component produced by the production apparatus 10. These workpiece holder seats 601 and 604 have the special task of securing the largest component of the assembly, i.e., the housing, for placement of other components. For ease of illustration, a cross-sectional view of the work holder cavity of the work holder socket 601 is shown. In which there is a sleeve a defining a housing, as will be described in more detail below.

The holder 63 is designed to be movable as a whole, whereby the row of workpiece holder seats 601 and 604 can also be moved along the longitudinal beam 16 in the direction of the double arrow 64. If the production equipment is to be modified from one particular component to another, the cradle 63 needs to be moved. In most cases, it is necessary to provide different parts in order to replace the coil group 50 with another coil group 50 having other parts. In order to avoid having to readjust the entire production line 1 or the production installation 10 and the workpiece holders 60 associated with the components to be produced, it is sufficient to move the corresponding workpiece holder seats into the working position assigned to the components to be produced. This has the advantage that the production apparatus does not require a new integrated device and that the movement through the holder 63 only once authorizes mass production, even in the case of temporarily producing other components. The production plant 10 is thus extremely flexible and does not require manual operation for conversion from one assembly to another.

The handling device 20 and its clamping system 20a can push the carriage 63 and its attached workpiece holder seat 601-. In this example, the holder 63 has a separate drive (not shown) and moves the workpiece holder stands 601 and 604, which are to be assembled separately, to the optimum position of the processing apparatus 20. Thus, it may be preferable that the particular workpiece holder seats 601 and 604 and their axes of the respective mating assemblies be fixed in the correct position. The workpiece holder seat of the workpiece holder 61 will therefore also change its position in the region of the machine 40 if further components are to be produced on the production device 10. When adapted for use with other products or other assemblies, the system controller facilitates the actuator to automatically move the cradle 63, thus eliminating the need for a separate handle for the operator. A sensor may be provided for the holder to check if the correct workpiece holder seat 601 and 604 is in the working position.

Instead of mounting the workpiece holder seats 601 and 604 on one holder, they may be provided on separate holders, respectively, and may be moved in a row by moving the respective holders 63 adjacent to each other. The advantage of the respective arrangement in a holder 63 is that, if no special components are to be installed, the current operation does not have to be interrupted when the workpiece holder seat is removed.

The workpiece holder 60 is mounted at a delivery station between two handling devices 20 of the production installation 10, see fig. 1, so that the parts gripped by the gripping system 20a of the handling device 20 can be placed in the workpiece holder 60 of the corresponding workpiece holder seat 601 and 604. If the gripper system 20a of the handling device 20 has three grippers, three parts can be first gripped from the blister strip 80 and staggered stacked and spliced in the workpiece holder 60 in the correct order, so that the number of movements of the handling device 20 is reduced and, depending on the turret or star type, the gripper system 20a can generally quickly connect the parts to one another in the workpiece holder 60. Here, there may be two to eight parts, preferably three to six parts, connected to each other in the workpiece holder 60.

It is clear that the production plant 10, if equipped with a plurality of coil groups 50, can also produce two different assemblies simultaneously. Depending on the application, special workpiece holders can be provided on the production device 10, but it is also possible to design the holder 63 to move back and forth in the direction of the double arrow 64 during operation.

Fig. 12 shows a method of manufacturing a composite part that is at least nearly rotationally symmetrical using a plurality of individual components, which method is run on a production plant 10:

As shown, each of the four blister strips 80 carries a cover film (not shown) and has a continuous array of cavities 81, the front ends of which are shown in fig. 12. In the cavities 81 of the blister strip 80, in each case one rotationally symmetrical part a, B, C, D is arranged, which has an axis and which extends substantially transversely to the conveying direction 83 of the blister strip 80.

The gripper system 20a with a total of three grippers first grips three components a, B, C by each gripper of the gripper system 20 a. Part a is the sleeve forming the housing, part B is a cylindrical anchor bolt, part C is a perforated pole core, and part D is an anchor rod, also called piston rod. The parts being assembled and pressed to form a core or magnetic assembly which may be used as an electromagnetic pump or as an electrical pump

the components of the valve are then assembled and bonded in a subsequent process in the production facility.

The clamping system 20a first inserts the largest component a into the workpiece holder 601 of the workpiece holder 60 resting in the working position (cross-sectional view in fig. 12), and then the components B, D and C are inserted into the component a, and it is highly advantageous if the components a, B, C, D are essentially elongate, rotationally symmetrical components, the axes of which are arranged transversely to the conveying direction of the blister strip 80, so that the gripper of the clamping system 20a can be quickly grasped and then placed in the workpiece holder in the axial direction.

In fact, the sleeve a is first inserted into the work holder seat 601 by means of a gripper and its tolerance should be designed such that the sleeve a can slide under its own weight into the work holder seat 601 (see fig. 12). The anchor bolt B is then inserted into the sleeve a by another gripper, preferably the gripper of the same handling device 20 (see fig. 12A). The anchor bolt B can also be slid into the sleeve a without external force. The bolt D is then inserted into the central bore of the sleeve a by another finger, possibly of another handling device 20 (see fig. 12B). There is also no need to apply any force because the fit of the bore of anchor a and anchor D is sufficient to provide space. Finally, the pole core C is inserted into the sleeve a by means of a further gripper, and the annular step formed on the periphery of the pole core C prevents the pole core C from pressing against the anchor bolt B. It should be noted that other components, such as springs, e.g., coil or disk springs, housing components, metering cylinders, valves, etc., may also be inserted into the workholder nest 601.

As can be seen from fig. 12, an optical monitoring device 70 is respectively mounted on the top side parking points 63a of the holders 63, so that together they form a raster or are designed as CCD line or matrix cameras. The optical monitoring device 70 may check whether these components have been successfully installed. In particular, if the optical monitoring device 70 has the function of monitoring the clamping system 20a, the optical monitoring device 70 may stop the installation process when a certain portion is not performed as specified, such as an insertion error or a misaligned supply. The optical monitoring device 70 is provided with a radio communication antenna 71, but may also be connected to the controller by means of a cable.

In this way, the intermediate product formed by the parts a, B, C, D is taken by the gripping system 20a of the other processing device 20 and is then transferred by the work holders 61 to the press 40 in the workstation 30, as will be explained in more detail in fig. 13 below. The magnetic assembly of parts a, B, C, D is removed from the work holder seat 601 by the gripper 20a and then transferred to the work holder 61 of the press 30.

Fig. 13 shows the punch 40 mounted on the table 30, wherein the table 30 is arranged on the production apparatus 10 relative to the coil groups 50 delivering blister strips 80. In the press 30, the work holder 61 also cooperates with the part to be produced, in this case a composite magnetic assembly.

The workpiece holder seats 601 and 604 are also each provided with at least one separate sensor, which is intended to detect whether a component, such as a housing or a sleeve a, is already installed in the workpiece holder seat. The sensor can be designed pneumatically, electrically or capacitively. If the sensor detects that there is no sleeve A in the correct position of the workholder nest 601, the controller will prevent the component B, C or D from being placed further. It is also checked whether the anchor bolt B is in the sleeve before inserting the anchor bolt D and whether the anchor bolt has been inserted before inserting the pole core C. This monitoring is carried out or assisted by an optical monitoring device 70. Component mounting errors in the blister strip 80 are a greater risk for rotationally symmetric components. It is therefore necessary that the individual components should be matched to one another and, in the event of a mounting error, exhibit a different optically detectable profile than in the event of a correct mounting. The sleeve a is realized in a manner that one end of the bottom surface of the sleeve a is closed, and the other end of the bottom surface of the sleeve a is opened. The anchor bolt B is realized in such a way that the bore hole for the installation of the anchor bolt is provided on only one side or by a cone provided on only one end face. An implementation for the anchor rod C is to use an eccentric radial collar. The pole core C is realized in the form of a radial step or an opposing cone leading to the anchor bolt B.

When the pre-assembled intermediate product is completely in the work holder 60, it is gripped by the clamping system 20a of the adjacent processing device 20 and fed to the work holder 61 of the machine (here the press 40), which work holder 61 then constitutes the lower die of the two-part press tool, while the punch 41 constitutes the upper die of the press tool. In the most preferred case, the upper die 41 is adapted to all work holder seats of the work holder 61, so that no retrofitting is required; alternatively, the upper tool can also be arranged according to the type of the turntable, which is adapted to the component to be machined.

As can be seen from fig. 13, the four lower dies of the workpiece holder 61 are mounted on a movable carriage 65 transversely to the pressing direction and can be moved by a separate drive (not shown) or by the processing device 20. The movement is accomplished by a drive belt 66 engaged with the brackets 65 and sandwiched between end blocks 67 for transmission to the brackets 65. The holder 63 may also be provided with a drive.

As can also be seen from fig. 13, the workpiece holder 61 shown on the right is aligned with the upper die 41 attached to the punch 40 and ready for profiling of the magnetic assemblies a, B, C, D which have not yet been inserted into the workpiece holder 61. It can also be seen that the upper dies 41 of adjacent work holders 61 rest in the work holders 61 during the production of other parts, so that no separate knife set is necessary. The upper half of the upper die 41 is designed as a conical die guide which can be fixed in a press part which is movable downwards of the press 30.

In the workpiece holder 61, the profiling process is continued, the pole core C is kept spaced from the anchor bolt B by the upper die 41 designed as a chisel and riveted with the sleeve a mounted in the workpiece holder 61.

After the profiling is completed, the same gripper 20a grips the profiled or riveted part and exchanges it with other intermediate products in order to continue the profiling. The profiled product is moved by the gripper system 20a to the next work station 30 or to the next workpiece gripper 60 or to the next processing device 20, and if it is already a finished product, it is placed on the corresponding pallet. The above-described manufacturing method is particularly suitable for the production of composite parts, in particular electromagnets, electromagnetic actuators, electromagnetically operated valves, electromagnetically driven metering pumps, electromagnetic regulating systems, electric motors and the like, as well as assemblies and magnetic assemblies of the above-described composite parts. These composite parts are characterized by a generally rotationally symmetrical shape, which also applies to components that are not visible. Furthermore, various processing steps, such as assembly, stamping, laser welding, and testing steps, such as optical measurements, tightness measurements, functional measurements, can be performed on the same machine, so that one production facility can be adapted to the production of various composite parts. Only a very low assembly cost is required to produce a wide variety of products of a product family on one production facility 10.

It is clear that the method also has the advantage that no conveyor belts moving in the direction of the stringers 16 are required, and that the handling devices for component gripping and machine assembly can also be used for the output of finished components. Thus, the greatly optimized cycle time is realized, and the production time of the product is greatly shortened. In addition, assembly time is only a fraction of the other time. Furthermore, the production plant 10 or the production line 1 requires only little space, so that the production line 1 or the production plant 10 is very compact in construction. The production apparatus 10 is very clean due to the elimination of the drive conveyor belt and can therefore also be used in clean room conditions. The production equipment realizes full-automatic assembly of products, thereby reducing modification cost and optimizing expandability. The production plant 10 allows to achieve very high efficiencies, particularly suitable for the complete continuous production of the above-mentioned products.

It is clear that the production plant described above provides a very high working efficiency and also reliably produces small batches of a plurality of products. The production apparatus 10 described above is advantageous for both large-scale production and small-scale production because of reduced retrofit costs.

The invention is described herein by way of an embodiment in which the individual production flows are illustrated by way of illustration only. It should be noted that other molding processes or testing processes may be performed in the production facility 10 or the production line 1.

The present invention is described herein by way of an embodiment in which the punch 40 achieves highly accurate alignment of the upper and lower dies by means of the column guide. It should be noted that other machines and/or molds may be used herein.

The invention is described herein by way of an embodiment in which the cleaning of the supplied components is achieved by individual packaging within the blister strip. Cleaning may also be achieved by the housing of the assembly station. It should be noted that instead of using blister strips for feeding, other feeding means may be chosen, for example placing the components in a tray.

Claims

1. A production method for producing a fitting part which is at least approximately rotationally symmetrical and which is made of a plurality of component parts (a, B, C, D), comprising the steps of:

-conveying the individual components (a, B, C, D) through a blister strip (80) wound onto a coil (52); and

The components (A, B, C, D) are assembled by sequential extraction of the assembly on which the assembly is mounted and insertion by at least one handling device (20) equipped with a clamping system (20 a).

2. A method as claimed in claim 1, characterized in that the components (a, B, C, D) are assembled by insertion in a workpiece holder (60) which is matched to the fitting part (a) as an outer housing.

3. The production method according to claim 1, characterized in that the assembled parts are at least partially moulded in one work station (30, 40) after the mounting step.

4. Production method according to claim 1, characterized in that the displacement of the component or fitting part is carried out solely by the handling device (20).

5. The production method according to claim 1, wherein the fitting component is an assembly including an electromagnetic device, the assembly of the electromagnetic device being an electromagnet, an electromagnetic actuator, an electromagnetically operated valve, an electromagnetically driven metering pump, an electromagnetic adjusting system, and an assembly of the above-mentioned combined components and a magnetic assembly.

6. Method according to claim 1, characterized in that the handling device (20) provided with a gripping system (20 a) comprises at least two grippers.

7. Production method according to claim 1, characterized in that the handling device (20) is designed as a robot system and/or as a shaft system.

8. The production method according to claim 1, characterized in that after at least one process step, an assembly component test should be carried out.

9. A method according to any one of claims 1 to 8, wherein the assembled component is a magnetic assembly comprising at least two, preferably three or four of the following components (A, B, C, D): the magnetic pole iron core comprises a sleeve (A), an anchor bolt (B), a magnetic pole iron core (C) and an anchor bolt (D).