EP1175363A1 - Systeme de transport - Google Patents

Systeme de transport

Info

Publication number
EP1175363A1
EP1175363A1 EP00936716A EP00936716A EP1175363A1 EP 1175363 A1 EP1175363 A1 EP 1175363A1 EP 00936716 A EP00936716 A EP 00936716A EP 00936716 A EP00936716 A EP 00936716A EP 1175363 A1 EP1175363 A1 EP 1175363A1
Authority
EP
European Patent Office
Prior art keywords
transport system
base plate
track
vehicle
product carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00936716A
Other languages
German (de)
English (en)
Inventor
Otto Mayer
Klaus Wohlfahrth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apex Tool Group GmbH and Co OHG
Original Assignee
Cooper Power Tools GmbH and Co OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cooper Power Tools GmbH and Co OHG filed Critical Cooper Power Tools GmbH and Co OHG
Publication of EP1175363A1 publication Critical patent/EP1175363A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/28—Electric drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
    • B23Q7/1436—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices using self-propelled work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J5/00—Manipulators mounted on wheels or on carriages
    • B25J5/02—Manipulators mounted on wheels or on carriages travelling along a guideway
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G54/00—Non-mechanical conveyors not otherwise provided for
    • B65G54/02—Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic

Definitions

  • the invention relates to a transport system with at least one product carrier which can be moved along a track by means of a linear motor drive device comprising a primary part and secondary parts.
  • Such a transport system is known from DE 4413625A1.
  • a slide device as a product carrier moves along a first track by means of the linear motor drive device and can be adjusted overall along a second track.
  • a stator or primary part of the linear motor drive device is arranged on the first track.
  • a corresponding runner or secondary part is attached to the slide device.
  • a vertically displaceable support column is mounted on the slide device, at the lower end of which a product or workpiece carrier is arranged in the form of a gripping device.
  • the known transport system is used to pick up and put down a specific product or workpiece by means of the gripping device.
  • the carriage device can be moved along the first track between two fixed points and the slide device as a whole can be moved with the first track along the second track between two further points, so that the goods held by the gripping device are moved along all three coordinate axes along spatial trajectory curves can.
  • a disadvantage of the known transport system is that only special goods, goods, workpieces or products can be transported due to the gripping device and only one product carrier can be moved by external influences via the primary part of the linear motor drive device.
  • the object of the registration is therefore based on the object of improving the transport system described at the outset in such a way that essentially any number of product carriers independently of one another along the career path can be moved and used in a variety of ways to transport a wide variety of products or workpieces.
  • the product carrier has an essentially flat base plate for the transport of objects and this is assigned to the primary part and the career of the secondary part.
  • each product carrier can be controlled individually and independently of the others.
  • each product carrier can be accelerated or decelerated separately, so that buffering of the product carriers among one another is not necessary, for example, in the case of traffic jams.
  • fewer product carriers are necessary, since only as many are needed as work orders have to be carried out along the career path and the work stations located there. In comparison to the transport system according to DE 298 16285, it can be assumed that the number of product carriers required for production will be reduced by half.
  • the separate control of the different product carriers means that they can be accelerated and decelerated better, which results in a shortening of the run-in and clock cycle times and production downtimes can be made up for by variable speeds of the product carriers.
  • each product carrier Due to the individual control of each product carrier, these are secured against buffering, ie against a collision with other product carriers, so that there are no crushing and shearing points on the product carrier. These could be otherwise result from the collision of two product carriers arranged one behind the other or by jamming a product carrier in its career by buffering, for example, a subsequent product carrier.
  • the primary part can be arranged on the base plate, in particular on its underside.
  • a primary part can be arranged in a simple manner and is easily accessible for maintenance work or the like.
  • the secondary part can be arranged directly opposite the primary part on the track, with only a small gap remaining between the two.
  • the primary part can also be arranged at least partially recessed in the base plate. If the height of the base plate is sufficient for this, the primary part can also be completely countersunk in the base plate and end flush with the underside of the base plate. In this way, the product carrier can be arranged very close to the raceways, for example, with the secondary part also recessed, so that the overall height of the transport system can be reduced. In addition, the primary and secondary parts are largely secured against damage in this way.
  • the linear motor drive device can be designed as an A or synchronous motor.
  • An asynchronous motor is preferably used.
  • a voltage supply device for contactless energy transmission runs along the track and comprises an energy transmission and an energy reception element.
  • the energy transmission element is arranged in the cover profile and the energy receiving element in the base plate. Energy transmission and energy receiving element face each other. Such contactless energy transmission can take place, for example, capacitively or magnetically.
  • the career of the transport system according to the invention can be realized in different ways.
  • DE 298 16 285 by the same applicant describes, for example, horizontally and vertically arranged raceways with corresponding guides for the product carriers.
  • the base plates are aligned horizontally or vertically accordingly. In the transport system according to the invention, such horizontal and vertical arrangements can also be used with the corresponding holder and guide according to DE 298 16285.
  • the raceways are formed by a pair of guide rails which are held at a distance from one another by a plurality of support profiles which are set up substantially vertically on a base.
  • stands can also be used in a similar manner and of a similar construction as described in DE 298 16285.
  • a cover profile can be arranged between them. This can extend along the raceways in the entire transport system.
  • the secondary parts can be arranged on the cover profile along the track. Magnets and in particular profile magnets are used as secondary parts in synchronous motors, which magnets can be arranged on the cover profile or at least partially recessed in the same way as the primary part, and preferably copper bars with steel backing in asynchronous motors.
  • the base plate can be guided along its longitudinal edges and / or on its underside adjacent to its longitudinal edges along the track.
  • roller, ball, guide elements, friction-reducing guide devices or the like can be arranged between the base plate and the raceway.
  • These elements or devices can be spaced apart from one another or also continuously in the case arranged by rail-shaped guide elements or devices.
  • the corresponding elements or devices can be provided on the running track or the running rails and / or on the base plate.
  • a position determining device is arranged between the product carrier and the track.
  • This can be formed, for example, by a scale and a scale reading system.
  • the scale can be arranged on the product carrier or on the cover profile or on the raceways and accordingly the scale reading system on the other part.
  • the scale reading system is preferably arranged on the moving product carrier so that the product carrier itself can determine its respective position.
  • each product carrier has on-board electronics that are connected in particular via the voltage supply device to a central station for the exchange of data and / or instructions.
  • the product carrier has on-board electronics that are connected in particular via the voltage supply device to a central station for the exchange of data and / or instructions.
  • This information can be transmitted, for example, to determine the position of the individual product carriers, to accelerate or decelerate them, to identify them, to electrically code a work order or the like.
  • the information can be transmitted by means of a bus system between the product carrier and the cover profile, for example.
  • a bus system is advantageously implemented in fiber optic technology.
  • the product carrier can have a display and / or query and / or input device. point. In this way, information can be displayed directly on the product carrier, for example via the display device.
  • a drive release of the product carrier that can be transmitted to the central station can be entered via an input device. Immediately after the drive has been released, the product carrier can be moved further, resulting in an absolutely free belt pacing for the entire transport system.
  • Information for the workers can also be transmitted to the various work stations via the display device, or further information can be called up from the central station via a corresponding query device via the product carrier.
  • the base plate has to be assigned to a work station for a long time
  • the primary part is arranged on a vehicle that can be coupled to the base plate. Depending on requirements, this vehicle is coupled to or decoupled from the base plate.
  • Several base plates can be moved with one vehicle, so that overall the costs of the transport system according to the invention are lower.
  • an identification can be assigned to each product carrier or its base plate, so that the corresponding base plate can be transported away for use or after use by means of any vehicle. It is also possible for certain sections of the transport system to be operated with only one vehicle which moves all base plates which can be moved along this transport section.
  • a corresponding position determination device is assigned to both the base plate and the vehicle.
  • the vehicle can be movable along a separate vehicle track, in particular below the base plate.
  • this vehicle track can be formed on the cover profile.
  • the or a further voltage supply device can be arranged along the vehicle track on the cover profile.
  • the vehicle track can be formed in an essentially U-shaped track recess in the cover profile, which is open upward in the direction of the base plate. In this recess, the vehicle runs freely and independently of the base plates.
  • a simple coupling option between the vehicle and the base plate can be realized, for example, by arranging a detachable coupling device between the vehicle and the base plate. This can have a lifting magnet, for example, which can be pushed upwards into the corresponding opening in the underside of the base plate when the base plate is coupled from the vehicle. The solenoid is withdrawn to decouple it.
  • Further coupling devices are known from practice and can also be used accordingly in the transport system according to the invention. It is also possible to manually decouple the vehicle and base plate, for example, if the base plate has reached a desired position.
  • the product carrier can be arranged in the desired position, for example, via the input device for fine positioning and then also decoupled from the vehicle by means of this device. It is also possible that the base plate is automatically decoupled from the vehicle by a mechanical stop or the like when a desired target position is reached.
  • the track recess can be covered by a cover in which a slot extending in the direction of movement of the vehicle is formed for the coupling device to pass through. This relatively narrow slot also prevents parts from falling onto the vehicle track, thereby preventing further movement of the vehicle or even damaging it.
  • an adjustable turntable can be rotatably mounted on the base plate.
  • the turntable can only cover a part of the base plate, but can also be as large or even larger in size than the base plate.
  • a linear rotary drive device can be formed between the turntable and the base plate. Like the drive device for the vehicle or product carrier, this can also be supplied via the voltage supply device described above.
  • a braking device can be arranged on the raceways, on the covering device or on the base plates. This is used in particular to determine the base plate in the area of work stations along the track.
  • the braking device can in turn be operated manually or automatically.
  • the vehicle can be moved in both directions along the raceways, it can prove to be particularly advantageous in the case of several vehicles along a transport section if the vehicle raceway has at least one return section for returning the vehicles decoupled from the base plate to a return point. In this way, a vehicle can be guided past another vehicle without disability.
  • the separate activation of the different product carriers means that they can be accelerated and decelerated better, which reduces the cycle time per work station.
  • the product carriers can also move backwards, for example to repeat a work order if the execution is insufficient.
  • different, partially parallel production or transport routes can be designed along a production line. Almost any lines are possible without corner turning stations to change the direction of movement of the product carriers.
  • a simple height adjustment is possible with the transport system according to the invention, so that ascents and descents are also possible during production.
  • the transport system according to the invention can in particular also be used to link several assembly / processing points along a production line with only one workpiece carrier or product carrier.
  • the workpiece positions on the carrier can in particular also be changed during transport using a rotary ⁇ / slide unit.
  • FIG. 1 shows a section along the line II through an inventive transport system according to FIG. 3;
  • Fig. 2 is a Fig. 1 corresponding section through a second embodiment, and
  • Fig. 3 is a plan view of a transport section of a transport system according to the invention shown in principle.
  • the transport system 1 has a track 2 which extends, for example, along a production line for transporting workpieces, products or other objects by means of a product carrier 6.
  • the product carrier 6 has an essentially flat surface on which the corresponding object can be set up and transported in directions 34 along the track 2.
  • the product carrier 6 is guided along its longitudinal sides through tracks 13 defining the track 2, between which a cover profile 14 extends.
  • FIG. 1 shows a section along the line I-1 from FIG. 3.
  • the same parts are denoted by the same reference numerals and are only mentioned in part in each case.
  • the product carrier 6 is essentially formed by a base plate 7 which has horizontal top and bottom sides. A product, workpiece or other object can be placed on the top of the base plate 7.
  • the base plate 7 is guided along the rails 13 by rolling and guiding elements 17, 18. These have an essentially L-shaped cross-section, with each L-leg being assigned a rolling or guiding element 17, 18. In the area of the side edges 15, 16 or underside 8, the base plate 7 has track strips 32 against which the corresponding elements 17, 18 rest.
  • a primary part 3 is arranged in the base plate 7 as part of a linear motor drive device 5.
  • This is a secondary part 4 of the linear motor mounted in a cover profile 14 extending between substantially vertical support profiles 12 drive device 5 opposite.
  • the secondary part 4 is formed, for example, by profile magnets in synchronous motors and by copper bars with steel plates in asynchronous motors along the track 2, see FIG. 3.
  • a voltage supply device 9 for contactless energy transmission has an energy transmission element 11 and an energy reception element 10.
  • the energy transmission element 11 is arranged in the cover profile 14 and the energy receiving element 10 in the base plate 7. The two elements face each other.
  • the energy transmission element 11 is connected to a corresponding energy supply at least at one point along the transport system.
  • a position determining device 19 For determining the position of the product carrier 6, a position determining device 19 is provided, which has a scale device 29 and a scale reading device 30.
  • the scale device 29 is arranged on an upper side of the cover profile 14 opposite the underside 8 of the base plate 7 and runs parallel to the running rails 13.
  • the scale reading device 30 is arranged opposite the scale device 29.
  • a bus system made up of bus lines 35 is arranged, which are designed, for example, using optical waveguide technology.
  • the product carrier 6 is shown on its upper side with a rotating ⁇ sliding plate 26.
  • This is rotatably and / or displaceably mounted on the product carrier 6 by means of drive devices 27 via rotary bearings 38.
  • the rotary ⁇ sliding plate 26 has on its upper side a gripping / clamping device 36 which has two gripping jaws which can be displaced transversely to the plate 26 along a drive shaft 37.
  • a corresponding gripping / clamping device can also be arranged on the turntable according to FIG. 2, see the following description.
  • FIG. 2 shows a section analogous to FIG. 1 through a second embodiment. This differs from the first exemplary embodiment in that a vehicle 20 can be coupled to the base plate 7. Furthermore, a rotary plate 26 is shown in dashed lines on the upper side of the base plate 7 in FIG. The rotary plate 26 has a linear rotary drive device 27 as a rotary drive.
  • a U-shaped track recess 22 for receiving the vehicle 20 is arranged in the cover profile 14.
  • the vehicle 20 is almost completely accommodated in this.
  • the primary part 3 as part of the linear motor drive device 5 is integrated in the vehicle 20.
  • the corresponding secondary part 4 is located within the raceway recess 22 at a short distance from the primary part 3.
  • the voltage supply device 9, 10, 11 is arranged in the raceway recess 22.
  • a corresponding position determining device 19 is provided between the vehicle 20 and the raceway recess 22. Like the position determining device 19 already described in FIG. 1, this can be composed of a scale device 29 and a scale reading device 30. A bus system 35 can also be provided.
  • a corresponding position determining device 19 for the base plate 7 itself is not shown in FIG. 2 for simplification.
  • a cover 24 is arranged between the cover profile 14 and the underside 8 of the base plate 7, this cover 4 resting on the top of the cover profile 14 and being detachably fastened to it, for example.
  • the cover 24 has a slot 25 above the vehicle 20, which extends in the direction of movement of the vehicle 20.
  • the coupling device 23 is guided through this in the direction of the base plate 7.
  • the coupling device 23 is formed by a lifting magnet which can be raised and lowered automatically in directions 31. This can be inserted or pulled out of the vehicle 20 into a recess in the underside 8 of the base plate 2.
  • the product carriers 6 can be guided vertically, as described, for example, in DE 29816285 by the same applicant.
  • the features described in the utility model mentioned above can be correspondingly transferred.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Robotics (AREA)
  • Non-Mechanical Conveyors (AREA)

Abstract

La présente invention concerne un système de transport pourvu d'un support de produit (6) qui peut se déplacer le long d'une voie de roulement (2) au moyen d'un dispositif d'entraînement à moteur linéaire (5, 3, 4) pourvu d'une partie primaire (3) et d'une partie secondaire (4). L'objectif de la présente invention est d'améliorer le système de transport de façon que fondamentalement tout nombre de supports de produit peut être déplacé le long de la voie de roulement, indépendamment les uns des autres, et peut être utilisé de façon polyvalente pour transporter des objets ou des pièces à usiner les plus divers. Le support de produit (6) présente une plaque de base (7) sensiblement plane, servant au transport d'objets. La partie primaire est associée à la plaque de base (7) et la partie secondaire (4) est associée à la voie de roulement (2).
EP00936716A 1999-05-06 2000-05-05 Systeme de transport Withdrawn EP1175363A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29908095U DE29908095U1 (de) 1999-05-06 1999-05-06 Transportsystem
DE29908095U 1999-05-06
PCT/EP2000/004064 WO2000068123A1 (fr) 1999-05-06 2000-05-05 Systeme de transport

Publications (1)

Publication Number Publication Date
EP1175363A1 true EP1175363A1 (fr) 2002-01-30

Family

ID=8073233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00936716A Withdrawn EP1175363A1 (fr) 1999-05-06 2000-05-05 Systeme de transport

Country Status (4)

Country Link
US (1) US6591756B2 (fr)
EP (1) EP1175363A1 (fr)
DE (1) DE29908095U1 (fr)
WO (1) WO2000068123A1 (fr)

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EP3510457A1 (fr) 2016-09-09 2019-07-17 The Procter and Gamble Company Procédés de production simultanée de produits différents sur une seule ligne de production
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DE29908095U1 (de) 2000-09-14
US20020085900A1 (en) 2002-07-04
US6591756B2 (en) 2003-07-15

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