Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C23/00—Extruding metal; Impact extrusion
  • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16N—LUBRICATING
  • F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16N—LUBRICATING
  • F16N17/00—Lubrication of machines or apparatus working under extreme conditions

Definitions

• the invention relates to a lubricant applicator on a metal press designed as an extrusion pipe or punch press, comprising at least one arm that can be pivoted into a press axis of the metal press with at least one lubricant head that is rotatably and / or pivotably arranged at a free end of the arm, with which a lubricant is applied the tools of the metal press can be applied.
• EP 0051 159 B1 discloses a device for lubricating tools on directly or indirectly working metal extrusion and / or pipe presses, which is characterized by an arm which can be retracted or swiveled into the pressing axis and which has rotatable and / or displaceable means for receiving at its free end carries a solid lubricant that melts in the heat in the form of a candle, the front side of the lubricant candle being adjustable or movable against the tools of the press.
• a pneumatic adjustable suspension device is provided at the free end of the arm for the automatic lubrication of the locking piece and mandrel of an indirect pipe press.
• the suspension device has a support plate on its end face facing a locking piece of the press, on which a ring-shaped lubricant plug carrier rotating about the press axis is arranged. The rotation is brought about by means of a gear motor provided for this purpose.
• the arrangement is relatively complex mechanically.
• the invention is based on the object of mechanically simplifying a lubricant applicator of the type mentioned above.
• the invention is also based on the object of providing a method for lubricating the tools on a metal press, in particular a method for lubricating a mandrel on an extrusion pipe or piercing press, with which the lubricant is distributed as uniformly and over a large area as possible on the tool can be.
• the method according to the invention is intended to achieve an approximately helicoidal distribution of the lubricant on the mandrel of a metal press.
• a lubricant applicator is provided on a metal press, which has at least one arm which can be pivoted in a pressing axis of the metal press with at least one lubricant head rotatably and / or pivotably arranged at a free end of the arm, with which a lubricant is applied to the tools the metal press can be applied, wherein the lubricant applicator according to the invention is particularly characterized in that the arm is designed as a multi-axis articulated arm.
• the articulated arm is designed as an automatic movement device, the sequence of movements, movement paths and / or angle of attack of which are programmable.
• the arm is according to the invention as Robotic arm trained.
• the sequence of movements, the movement paths and / or the angle of attack of the arm can, for example, have been stored or programmed in a programmable logic controller of the lubricant applicator.
• Such a lubricant applicator makes it possible to carry out the activities that were previously largely carried out manually when lubricating the tools in a fully automated manner. Regardless of the lubricant used, the same basic design can be retained. Changes to the design of the lubrication head can be carried out automatically. Since all conceivable movements or degrees of freedom can be realized with the articulated arm according to the invention, tool surfaces with large diameters can be lubricated by means of freely predetermined movement patterns of the lubricating head.
• the lubricant applicator can be attached directly to the metal press, but it can also be set up as a “lubricant robot” next to a metal press.
• the latter arrangement has the advantage that positioning is possible regardless of the size and configuration of the metal press.
• Another advantage of the lubricant applicator according to the invention is that it avoids dangerous activities in the hot area of the metal press.
• the arm of the lubricant applicator according to the invention can be sensor-guided so that a control of the lubricant applicator recognizes and signals any misalignments of a tool or other malfunctions caused by the sensor system.
• the articulated arm preferably has at least four, preferably five, particularly preferably six degrees of freedom. In particular, if the arm has six degrees of freedom, any movements, including tilting movements, can be carried out in all directions.
• at least one media guide is integrated into the arm.
• a lubricant line for example, which is led from a lubricant reservoir to the lubricating head, can be provided as the media guide.
• the lubricating head can have a mandrel bushing for a mandrel to be lubricated, which is provided with a lining designed as a lubricant cushion.
• the lubricant applicator according to the invention can of course be designed for the lubrication of arbitrarily designed tools of a metal press.
• the invention further comprises an extrusion, pipe or piercing press as a metal press with a lubricant applicator having one of the features described above.
• the object on which the invention is based is also achieved by a method for lubricating a mandrel on an extrusion, pipe or piercing press using a lubricant applicator having one of the features described above.
• the method is particularly characterized in that, in a first method step, the mandrel of the metal press is moved into a first position, which allows the lubrication head to be interlaced in the press axis, and in a second method step the mandrel is inserted or threaded into the passage of the lubrication head and in a further method step the mandrel is moved axially back and forth in the press axis, this movement being superimposed with a rotation of the lubricating head about the press axis.
• the rotation of the lubrication head is preferably carried out with an alternating direction of rotation, so that a helis-shaped lubricant track is generated on the mandrel.
• the figure shows a cross section through a metal press 1, which is designed as an extrusion or pipe press, with a view of the articulated arm 3 of the lubricant applicator 4 according to the invention pivoted into the pressing axis 2.
• the press mandrel of the metal press 1, which extends in the press axis 2, is denoted by the reference number 5.
• the lubricant applicator 4 comprises the articulated arm 3 fixedly mounted on a console 6 of the metal press 1, the free end of which is rotatably attached to a lubricating head 7.
• the lubrication head 7 comprises a mandrel bushing 8 which encloses the press mandrel 5 in the illustration shown.
• the mandrel bushing 8 is provided with a lining designed as a lubricant cushion
• the articulated arm 3 comprises, in a known manner, three joints 10 A, 10 B, 10 C, each of which has two degrees of freedom, so that a total of six degrees of freedom can be achieved with the articulated arm 3.
• the first joint 10 A is attached to the bracket 6 in a rotatably driven manner.
• a first arm segment 11 A is attached to this in a pivotably driven manner.
• a second joint 10B is attached to the end of the first arm segment 11A remote from the console 6 in a rotatably driven manner. At the second joint
• a second arm segment 11 B is attached in a rotatably driven manner
• the lubricating head 7 is attached in a rotatably driven manner on a third arm segment 11 C.
• the axis of rotation of the lubrication head 7 and the axis of rotation of the third joint 10 C extend parallel to the pressing axis 2 in the position of the articulated arm 3 shown in the figure is enclosed.
• the press mandrel 5 is moved back and forth in the press axis 2, this back and forth movement being superimposed by a back and forth rotation of the lubricating head 7 about the press axis 2.
• the lining 9 of the lubricating head 7, which is impregnated with a lubricant in the manner of a stamp pad, rests against the circumferential surface of the dome 5 and creates a helicoidal lubricant track on this.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Presses And Accessory Devices Thereof (AREA)
• Forging (AREA)
• Coating Apparatus (AREA)
• Extrusion Moulding Of Plastics Or The Like (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=72744744

Family Applications (1)

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Citations (5)

Family Cites Families (27)

• 2019
  • 2019-09-30 DE DE102019214981.2A patent/DE102019214981B4/de active Active
• 2020
  • 2020-09-28 EP EP20785934.9A patent/EP4038308B1/de active Active
  • 2020-09-28 CN CN202080066827.6A patent/CN114466712B/zh active Active
  • 2020-09-28 JP JP2022519713A patent/JP7502424B2/ja active Active
  • 2020-09-28 WO PCT/EP2020/077122 patent/WO2021063895A1/de not_active Ceased
  • 2020-09-28 ES ES20785934T patent/ES2971928T3/es active Active

Patent Citations (5)

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