EP4015147A1 - Machine d'usinage de pièces en tôle - Google Patents

Machine d'usinage de pièces en tôle Download PDF

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Publication number
EP4015147A1
EP4015147A1 EP21209018.7A EP21209018A EP4015147A1 EP 4015147 A1 EP4015147 A1 EP 4015147A1 EP 21209018 A EP21209018 A EP 21209018A EP 4015147 A1 EP4015147 A1 EP 4015147A1
Authority
EP
European Patent Office
Prior art keywords
grinding
unit
machine
belt
machine according
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.)
Pending
Application number
EP21209018.7A
Other languages
German (de)
English (en)
Inventor
Jacques Burtscher
Christian Armbruster
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.)
Arku Maschinenbau GmbH
Original Assignee
Arku Maschinenbau GmbH
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 Arku Maschinenbau GmbH filed Critical Arku Maschinenbau GmbH
Publication of EP4015147A1 publication Critical patent/EP4015147A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/002—Machines or devices using grinding or polishing belts; Accessories therefor for grinding edges or bevels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/008—Machines comprising two or more tools or having several working posts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/02—Frames; Beds; Carriages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/06—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving conveyor belts, a sequence of travelling work-tables or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades

Definitions

  • the present invention relates to a machine for processing sheet metal parts in several consecutive processing steps, in particular deburring, rounding of edges and grinding the surface.
  • EP 3 085 491 A1 describes a machine for grinding and deburring a flat tool piece with a horizontal grinding roller. Such a machine can grind the surface, but cannot round edges or remove larger burrs.
  • EP 2 792 450 describes a deburring machine with horizontally revolving belts that carry a large number of brushes arranged next to one another.
  • the brushes consist of a fan-shaped pack of abrasive paper or abrasive fleece.
  • the sheet metal part to be deburred is crosswise to the direction of movement of the brushes advanced.
  • the edges of the abrasive paper or abrasive fleece rub across the surface of the workpiece transversely to the feed direction and thereby remove the protruding burrs. Due to the flexibility of the brushes, they can penetrate a certain distance into recesses.
  • EP 1 293 292 A1 describes a machine for processing workpieces with a round sanding pad that rotates about a vertical axis.
  • the underside of the sanding disc has radial brushes that sweep over the workpieces.
  • DE 10 2018 126 281 A1 describes a grinding device for processing a metal workpiece in a continuous process, comprising a wide-belt grinding unit and a further grinding unit with disk grinders for producing a finish on a surface of the workpiece.
  • a transport device transports the workpiece linearly under the wide belt sanding unit and under the other sanding unit.
  • Grinding and deburring machines must be set precisely to the thickness of the sheet metal parts to be processed, so that on the one hand the processing tools act on the workpiece with sufficient pressure, but on the other hand the processing tools are not damaged or the workpiece does not get caught on a tool or jammed.
  • the setting of a brush unit with grinding brushes is a little less critical because the grinding brushes are flexible and can give way to the workpiece to a certain extent.
  • the distance between the conveyor belt and the contact roller or the infeeds must be set very precisely so that on the one hand the workpiece can still move under the rotating contact roller and on the other hand the grinding belt can be pushed over the contact roller with sufficient pressure surface of the workpiece grinds.
  • the object of the invention is the conception of a machine for processing sheet metal parts with a conveyor belt for transporting the workpiece to be processed in the horizontal direction from a loading table to an output table and a plurality of processing units which are arranged one behind the other along the conveyor belt and a brush unit with grinding brushes and at least includes a sanding belt unit that can be quickly and optimally adjusted to different thicknesses of the sheet metal parts to be processed.
  • a brush unit with grinding brushes and at least one grinding belt unit with a contact roller arranged transversely to the direction of passage are arranged one behind the other in the direction of passage of the workpiece along the conveyor belt.
  • the sanding belt unit is mounted in an auxiliary frame, which is mounted in the machine frame so that it can be moved in the vertical direction, and an adjusting device is arranged between the machine frame and the auxiliary frame, with which the distance between the conveyor belt and the contact roller of the sanding belt unit can be adjusted independently of the brush unit with sanding brushes and optionally further processing stations can be set.
  • the arrangement of the entire sanding belt unit on a vertically movable auxiliary frame enables quick, easy and very precise Adjustment of the distance between the conveyor belt and the contact roller, i.e. the infeed.
  • the throughput height of the workpiece which is determined by the vertical height of the conveyor belt in the machine frame, is the reference height that applies to all processing units. This has the advantage that first the vertical height of the conveyor belt can be set, for example for the purpose of adjustment to upstream or downstream work stations in the context of a chain of machines, and then the working gaps of the various processing units can be adjusted separately from one another.
  • the machine according to the invention can, in particular, finish stamped or cut sheet metal parts with a thickness of up to several centimeters with excellent results, by both deburring and/or rounding the edges and edges and sanding the surface.
  • the surface is expediently sanded by the sanding belt unit after the edges have been deburred or rounded by the brush unit.
  • three processing units are arranged one behind the other along the conveyor belt, namely in the first place a first sanding belt unit in a first subframe, in the second place a central brush unit with sanding brushes and in the third place a second sanding belt unit in a second subframe behind the central brush unit .
  • the first grinding belt unit can advantageously have a coarse-grain grinding belt for deburring and the second grinding belt unit can have a fine-grain grinding belt for grinding the surface of the workpiece.
  • the central brush unit in the middle is then primarily used to round off edges the recesses in the surface of the sheet metal part.
  • a sanding belt unit with a contact roller can at most deburr the front edge of a sheet metal part, whereas the flexible sanding brushes of the brush unit penetrate a little into recesses in the sheet metal part.
  • the machine is used for processing relatively thick sheet metal parts 10 in three consecutive processing steps, namely deburring, rounding the edges and grinding the surface.
  • a machine frame 20 essentially comprises front and rear vertical bars 21a, 21b and horizontal bars 22 placed between them.
  • Four parallel vertical guides 23a, 23b are arranged in the region of the lower horizontal bars 22b.
  • a conveyor belt 30 is mounted in the machine frame 20 at a distance from the floor.
  • the conveyor belt 30 comprises a working strand 31 and a slack strand 32 and runs between a deflection roller 33a and a drive roller 33b, which extend transversely to the direction of transport.
  • the conveyor belt 30 protrudes beyond the machine frame 20 at the inlet and outlet of the machine.
  • the sections of the conveyor belt 30 that protrude beyond the machine frame 20 form a loading surface 34 and an unloading surface 35.
  • the sheet metal part 10 to be processed is moved in the direction of the arrow from the loading surface 34 to the unloading surface 35 continuously transported to successively pass through three different processing units.
  • the first processing unit is a first grinding belt unit 40 with a coarse-grain grinding belt 41 which is endless and runs between a contact roller 42 and a deflection roller 43 .
  • the contact roller 42 has a pulley 44 which is driven by an electric motor 45 via a drive belt 46.
  • the deflection roller 43 is rotatably mounted on a bearing fork 47 .
  • the first grinding belt unit 40 is installed completely in a first auxiliary frame 50 .
  • the auxiliary frame 50 comprises two parallel vertical rails 51a, 51b arranged at a distance from one another and a cross member 52 connecting them (cf. 2 ).
  • the auxiliary frame 50 has a cross-section which, in principle, corresponds to an inverted U, with the vertical rails 51a, 51b forming the U-legs and the crossbeam 52 forming the U-back.
  • the vertical rails 51a, 51b run laterally in an intermediate space between the machine frame 20 and the conveyor belt 30.
  • the vertical rails 51a, 51b in turn have a cross section in the shape of a flat, large U, with the ridges of the U pointing towards one another.
  • the pulley 44 and the drive belt 46 are arranged within the U-shaped cross section of the vertical rail 51a, the electric motor 45 is located on the outside to save space (cf. 2 ).
  • the vertical rails 51a, 51b of the first auxiliary frame 50 are slidably mounted in the vertical guides 23a, 23b of the machine frame 20.
  • a clamping cylinder 53 is located between the bearing fork 47 of the sanding belt unit 40 and the crossbeam 52 of the auxiliary frame 50.
  • a clamping device 48 with a manually operated clamping lever enables the crossbeam 52 to be clamped on the auxiliary frame 50.
  • the clamping device 48 is released in order to change the sanding belt 41.
  • the tension between Contact roller 42 and deflection roller 43 released by the clamping cylinder 53 The abrasive belt 41 can then be parallel to the contact roller 42 (in 2 to the left) can be pulled out.
  • the auxiliary frame 50 of the first grinding belt unit 40 includes an adjustment device, which is configured here as a lifting spindle gear 60, for example. This allows the distance between the conveyor belt 30 and the contact roller 42 of the grinding belt unit 40 or the infeed to be adjusted very precisely and, if necessary, to be adjusted quickly, with the auxiliary frame 50 being moved vertically up or down on the vertical guides 23a, 23b.
  • the second processing unit is a brush unit 70 which is arranged behind the first sanding belt unit 40 in the direction of passage of the sheet metal part 10 .
  • the brush unit 70 has a total of eight grinding brushes 71, four of which rotate in the following direction and four in the opposite direction about horizontal axes. In 1 only the front row with four grinding brushes 71 can be seen.
  • An electric drive unit 72 drives the grinding brushes 71 via a transfer case 73 . While the drive unit 72 is fixed in the machine frame 20, the transfer case 73 is rotatable about its vertical axis. This results in a multi-rotational movement of the grinding brushes 71.
  • the grinding brushes 71 consist of a large number of flexible grinding lamellae, the ends of which sweep over the surface of the sheet metal part 10 guided past under the grinding brushes 71 and can also penetrate a certain distance into recesses. At the same time, both the front and the side edges of the sheet metal part 10 are rounded.
  • the brush unit 70 has a height adjustment device arranged between the drive unit 72 and the machine frame 20, which is shown here by way of example is designed as a lifting spindle gear 74a, 74b.
  • a lifting spindle gear 74a, 74b is designed as a lifting spindle gear 74a, 74b.
  • the third processing unit is a second grinding belt unit 80 which is arranged behind the central brush unit 70 in the direction of passage of the sheet metal part 10 .
  • the second grinding belt unit 80 has a fine-grain grinding belt 81 which is endless and runs between a contact roller 82 and a deflection roller 83.
  • the second grinding belt unit 80 is driven in the same way as the first grinding belt unit 40 by means of an electric motor, which drives the contact roller 82 via a drive belt and a pulley (cf. 2 ).
  • the entire second sanding belt unit 80 is mounted on a second auxiliary frame 90, which in principle corresponds to the first auxiliary frame 50 for the first sanding belt unit 40 (cf. 2 ). Between the machine frame 20 and the second grinding belt unit 80 there is also an adjustment device which is designed as a lifting spindle gear 100 . This allows the distance between the conveyor belt 30 and the contact roller 32 of the second grinding belt unit 80 or the infeed to be finely adjusted by moving the auxiliary frame 90 vertically up or down on the vertical guides 24a, 24b of the machine frame 20.
  • the second grinding belt unit 80 with a fine-grain grinding belt 81 is used for fine grinding the upper side of the sheet metal part 10. The result is a cleanly deburred workpiece with rounded edges and a finely ground surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP21209018.7A 2020-12-16 2021-11-18 Machine d'usinage de pièces en tôle Pending EP4015147A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202020107308.7U DE202020107308U1 (de) 2020-12-16 2020-12-16 Maschine zum Bearbeiten von Blechteilen

Publications (1)

Publication Number Publication Date
EP4015147A1 true EP4015147A1 (fr) 2022-06-22

Family

ID=74686871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21209018.7A Pending EP4015147A1 (fr) 2020-12-16 2021-11-18 Machine d'usinage de pièces en tôle

Country Status (2)

Country Link
EP (1) EP4015147A1 (fr)
DE (1) DE202020107308U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117325032A (zh) * 2023-12-02 2024-01-02 太原市佳源金属制品有限公司 一种轨道交通车辆生产加工用修边装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118139725A (zh) 2021-10-01 2024-06-04 阿库机械制造有限公司 用于加工钣金零件的机器
EP4163056A1 (fr) 2021-10-06 2023-04-12 ARKU Maschinenbau GmbH Dispositif et procédé de fourniture d'une proposition de réglage optimal d'une machine à travailler la tôle
CN114454059B (zh) * 2022-01-29 2023-10-17 重庆大及电子科技有限公司 一种滤波器加工用铝合金件表面打毛装置
CN114918810B (zh) * 2022-06-27 2024-03-12 池州市九华明坤铝业有限公司 铝制板材加工用抛光装置
EP4417362A1 (fr) 2023-02-17 2024-08-21 ARKU Maschinenbau GmbH Dispositif et procédé de détection d'un moyen de traitement de tôle dans une machine de traitement de tôle
CN117020808B (zh) * 2023-08-21 2024-01-23 山东省博兴县锦隆钢板有限公司 一种镀锌板打磨机械手
CN117984177B (zh) * 2024-04-07 2024-06-07 牡丹江师范学院 一种家具板材加工装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293292A1 (fr) 2001-09-12 2003-03-19 Timesavers International B.V. Dispositif pour le traitement de pièces plates
EP2792450A1 (fr) 2013-04-19 2014-10-22 Arku Maschinenbau Gmbh Machine d'ébavurage
EP3085491A1 (fr) 2015-04-24 2016-10-26 Arku Maschinenbau Gmbh Dispositif de meulage et d'ébavurage d'une pièce plate
DE212017000255U1 (de) * 2017-12-18 2019-08-06 Lanuss Industrial Equipment (Suzhou) Co., Ltd. Entgratungsmaschine
DE102018126281A1 (de) 2018-10-23 2020-04-23 Jakob Löwer Inh. von Schumann GmbH & Co. KG Schleifvorrichtung zum Bearbeiten eines metallenen Werkstückes im Durchlaufverfahren
CN211465850U (zh) * 2019-12-18 2020-09-11 捷浩欣工业机械(昆山)有限公司 一种窜动去毛刺一体机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293292A1 (fr) 2001-09-12 2003-03-19 Timesavers International B.V. Dispositif pour le traitement de pièces plates
EP2792450A1 (fr) 2013-04-19 2014-10-22 Arku Maschinenbau Gmbh Machine d'ébavurage
EP3085491A1 (fr) 2015-04-24 2016-10-26 Arku Maschinenbau Gmbh Dispositif de meulage et d'ébavurage d'une pièce plate
DE212017000255U1 (de) * 2017-12-18 2019-08-06 Lanuss Industrial Equipment (Suzhou) Co., Ltd. Entgratungsmaschine
DE102018126281A1 (de) 2018-10-23 2020-04-23 Jakob Löwer Inh. von Schumann GmbH & Co. KG Schleifvorrichtung zum Bearbeiten eines metallenen Werkstückes im Durchlaufverfahren
CN211465850U (zh) * 2019-12-18 2020-09-11 捷浩欣工业机械(昆山)有限公司 一种窜动去毛刺一体机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117325032A (zh) * 2023-12-02 2024-01-02 太原市佳源金属制品有限公司 一种轨道交通车辆生产加工用修边装置
CN117325032B (zh) * 2023-12-02 2024-02-06 太原市佳源金属制品有限公司 一种轨道交通车辆生产加工用修边装置

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