Gantry loader with gripper and energy store

{
  "publication_number": "US10512996B2",
  "country": "US",
  "kind": "B2",
  "title": "Gantry loader with gripper and energy store",
  "abstract": "A gantry loader having at least one carriage travelable at a horizontal guide rail, in particular for the transport of workpieces between stations of a production system, wherein the carriage has at least one drive. The present energy is characterized in that the carriage has an energy store for the at least partial energy supply of the drive.",
  "claims": [
    "1. A gantry loader configured for transport of a workpiece between stations of a production system, comprising: a horizontal guide rail; and a carriage being travelable at the horizontal guide rail and having at least one drive; wherein the carriage has: an energy store configured to supply energy to the at least one drive; a gripper for gripping the workpiece; and a component that is at least also movable in a vertical direction, the gripper being mechanically supported by the component such that the gripper and the workpiece gripped by the gripper are moved in the vertical direction by a corresponding movement of the component; and wherein the gantry loader has an energy supply device contactlessly supplying the energy store in the carriage with electrical energy through one or more induction coils contactlessly transmitting electrical power to the energy store.",
    "2. The gantry loader in accordance with claim 1, wherein the gantry loader is a linear gantry or an area gantry and wherein the horizontal guide rail is supported via one or more supports.",
    "3. The gantry loader of claim 1, wherein the energy store is replaceable, and a change station is provided for replacement of the energy store.",
    "4. The gantry loader of claim 1, wherein a control of the carriage transmits status data to a control of the gantry loader.",
    "5. The gantry loader in accordance with claim 1, wherein the energy supply device supplies the carriage with energy permanently or in every travel position, an energy supply section of the energy supply device extending over a total length of the horizontal guide rail.",
    "6. The gantry loader in accordance with claim 1, wherein the energy supply device supplies the carriage with energy intermittently or in travel sections, using energy supply sections arranged in a plurality of travel positions or travel sections.",
    "7. The gantry loader in accordance with claim 6, wherein the energy supply device supplies the carriage with energy in at least one work position above a station of a manufacturing system, the at least one work position being used by the carriage to place down or pick up the workpiece and for charging; or wherein the energy supply device supplies the carriage with energy in at least one parking position, the carriage being traveled into the at least one parking position for charging by a control depending on a charge status or at predefined points in time in a charge cycle.",
    "8. The gantry loader in accordance with claim 1, wherein the energy supply device is dimensioned such that a peak power provided by the energy supply device is lower than a maximum power consumption of the carriage.",
    "9. The gantry loader in accordance with claim 1, wherein the carriage is operable at least at times only via the energy of the energy store.",
    "10. The gantry loader in accordance with claim 1, having a cableless data transmission system for communication with the carriage, wherein the data transmission system has a slit hollow conductor that extends along the horizontal guide rail and cooperates with an antenna arranged at the carriage.",
    "11. The gantry loader in accordance with claim 1, wherein the carriage has a control for the at least one drive receiving commands or synchronization data from a control of the gantry loader, the at least one drive being controlled by the control of the carriage by feedback control.",
    "12. The gantry loader in accordance with claim 1, wherein the carriage has an autonomous lubrication system having a lubricant container for a supply of at least one mechanical axle or at the least one drive with a lubricant.",
    "13. The gantry loader in accordance with claim 1, wherein the at least one drive is configured for traveling the component that is at least also movable in the vertical direction.",
    "14. The gantry loader in accordance with claim 13, wherein the component that is at least also movable in the vertical direction comprises a vertically movable toothed rack driven via the at least one drive or a robot arm having at least one rotational axis driven by the at least one drive.",
    "15. The gantry loader in accordance with claim 1, further comprising two or more carriages that are movable along the horizontal guide rail, wherein the carriage is included in the two or more carriages.",
    "16. The gantry loader in accordance with claim 1, wherein the at least one drive is configured for traveling the carriage along the horizontal guide rail.",
    "17. The gantry loader in accordance with claim 1, wherein the carriage comprises a first drive configured for traveling the carriage along the horizontal guide rail and a second drive for traveling the component that is at least also movable in the vertical direction and wherein the energy store is configured to supply energy to the first and second drives.",
    "18. The gantry loader in accordance with claim 16, wherein the at least one drive is configured to drive a drive element of the carriage that meshes with a toothed rack of the horizontal guide rail."
  ],
  "description_excerpt": "The present disclosure relates to a gantry loader having at least one carriage travelable at a horizontal guide rail. Such gantry loaders in particular serve the transport of workpieces between stations of a manufacturing system such as manufacturing machines and/or feed and/or removal devices. Such gantry loaders are sometimes also called gantry robots or overhead transfer devices.\n\nIn the mass production of workpieces, in particular in the mechanical manufacture of workpieces, the workpieces are successively fed to a plurality of machine tools in accordance with an exactly planned production routine. For this purpose, the workpieces are first channeled into the production system via a feed device and are then transported onward from one manufacturing machine to the next within the production system. Depending on the number of production operations, the workpieces are either channeled out of the production system via a removal device or are transferred via an automation buffer system to a further production system. The transport of the workpieces from one station of the production system to the next can take place via a gantry loader. A plurality of gantry loaders can also work in parallel or in series in the production system. A plurality of carriages can furthermore be provided at the gantry loader.\n\nGantry loaders typically work in a fully automated manner, with the control of the carriages taking place via stationary, centrally arranged controls that coordinate the operation of the carriages with the operation of the manufacturing machines and of the feed and/or removal device.",
  "cpc": [
    "B23Q 7/046",
    "B23Q 5/28",
    "B23Q 5/385",
    "B23Q 7/048",
    "B23Q 7/1494",
    "B25J 19/0045",
    "B25J 19/005",
    "B25J 5/02",
    "B25J 9/026",
    "B60L 5/005",
    "B65G 47/901",
    "B65G 47/907"
  ],
  "ipc": [
    "B23Q 5/28",
    "B23Q 5/38",
    "B23Q 7/04",
    "B23Q 7/14",
    "B25J 19/00",
    "B25J 5/02",
    "B25J 9/02",
    "B60L 5/00",
    "B65G 47/90"
  ],
  "assignees": [
    "Liebherr Verzahntechnik GmbH"
  ],
  "inventors": [
    "David Haenschke",
    "Christof PORSCHE",
    "Thomas Mattern"
  ],
  "filing_date": "2018-06-28",
  "publication_date": "2019-12-24",
  "grant_date": "2019-12-24",
  "priority_date": "2017-05-08",
  "application_number": "US-201816022469-A",
  "family_id": "64014464",
  "cited_by_count": 2,
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}