EP3170572A1 - Dispositif d'ébavurage et procédé d'ébavurage - Google Patents

Dispositif d'ébavurage et procédé d'ébavurage Download PDF

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Publication number
EP3170572A1
EP3170572A1 EP16200005.3A EP16200005A EP3170572A1 EP 3170572 A1 EP3170572 A1 EP 3170572A1 EP 16200005 A EP16200005 A EP 16200005A EP 3170572 A1 EP3170572 A1 EP 3170572A1
Authority
EP
European Patent Office
Prior art keywords
deburring
component
entgratrolle
deburring device
range
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Withdrawn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
EP16200005.3A
Other languages
German (de)
English (en)
Inventor
Jan Hofmaier
Jochen Kunz
Ingo Herrmann
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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
Priority claimed from DE102016000371.5A external-priority patent/DE102016000371A1/de
Application filed by Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP3170572A1 publication Critical patent/EP3170572A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/005—Edge deburring or smoothing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
    • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
    • B21D19/043—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of plates

Definitions

  • the present invention relates to a deburring device for chipless deburring of one or more edges of a component, in particular a plate-shaped component, with at least one receiving area for the component to be deburred.
  • the component is preferably made of metal.
  • FIG. 9 a shows in cross-section the edge region of a side wall of a refrigerator.
  • the edge area is designed here as a box profile.
  • the sharp edge 90 is located in a less accessible area, whereby the risk of injury decreases.
  • FIG. 9c shows a 180 ° bend of the area in question, as in FIG. 9c) , which also shows a sectional view through the edge region of a refrigerator sidewall, indicated by an arrow. Also in this case, the sharp edge 90 is not exposed, but set back. In this way, the risk of injury is reduced, but there is the disadvantage of higher material consumption.
  • the present invention has for its object to provide a particularly advantageous possibility to deburr the edges of such boards, in particular of metal boards in a relatively simple manner.
  • the deburring device has at least one deburring unit comprising at least one rotatably arranged Entgratrolle having at least one receptacle for the edge to be deburred of the component, and wherein the deburring device has at least one positioning device which is designed to deburred the Position the edge of the component relative to the recording of the Entgratrolle.
  • the present invention is therefore based on the idea to carry out the deburring by means of one or more Entgratrollen, which rest on the edge of the component and deburring this edge preferably without cutting during a rotational movement of the Entgratrolle.
  • the plate is deburred only in this way, ie preferably no further method for deburring is provided.
  • the component is preferably a part which consists of metal or at least has metal on the edge regions.
  • other materials are also included in the invention.
  • the take-up of the roll is preferably designed such that a chipless deburring, i. a deformation of the edge takes place such that it loses the sharp-edged profile and preferably has a rounded cross-sectional profile.
  • the deburring roller is e.g. pressed by spring force or by other means on the edge or the component is guided in the deburring that this is pressed onto the Entgratrolle.
  • the component it is preferably in a part of the housing of a refrigerator and / or freezer or other household appliance, such as the side wall, preferably made of sheet metal.
  • the deburring station preferably has at least one passage direction in which the component to be deburred is moved by the deburring device.
  • the axis of rotation of the at least one Entgratrolle is perpendicular or substantially perpendicular (deviation from the vertical to ⁇ 15 °) to this direction of passage.
  • the deburring roller is preferably biased or loaded by means of at least one spring, pneumatic or hydraulic in the direction of the receiving area, so that the Entgratrolle during its rotational movement with a certain force rests against the edge of the component to be deburred.
  • the positioning device comprises at least two fixing rollers or rollers, preferably at least two rubberized fixing rollers or rollers, which are arranged above and below the receiving area, so that they with the top and bottom of the component to be deburred in contact stand.
  • the fixing rollers or rollers thus guide the component such that its edge or its edges are arranged at the height of the receptacle (s) of the Entgratrolle (s) and the component can not escape or be pushed away.
  • the axis of rotation of the fixing rollers or rollers are perpendicular or substantially perpendicular (deviation from the vertical to ⁇ 15 °) to the axis of rotation of the Entgratrolle.
  • fixing rollers instead of or in addition to fixing rollers, other fixing elements may also be provided which guide the component in a specific position relative to the at least one deburring roller.
  • the deburring station can basically have exactly one deburring roller or even two or more than two deburring rollers.
  • the receptacle is formed as a groove or has a groove. It is preferably provided that the groove bottom is rounded and, for example, has the profile of a pitch circle.
  • the reception of the deburring roller has, in cross-section, two limbs which, for example, run in a V-shape towards one another, between which the groove is located.
  • the component is relative to the Entgratrolle arranged such that its edge is disposed in the groove and is preferably in contact with the groove bottom and pressed onto this.
  • the recording of the Entgratrolle has a maximum width in the range of 1 mm to 5 mm, preferably in the range of 2 mm to 4 mm and / or a depth in the range of 1 mm to 3 mm and preferably in the range of 1.5 mm to 2.5 mm.
  • the groove of the Entgratrolle has a width in the range of 0.3 to 0.9 mm and preferably in the range of 0.5 to 0.7 mm and / or a depth in the range of 0.2 mm 0.8 mm and preferably in the range of 0.4 mm to 0.6 mm and / or that the radius of the rounded groove bottom in the range of 0.1 mm to 0.5 mm and preferably in the range of 0.2 mm to 0.4 mm.
  • the deburring device preferably has at least two deburring units spaced apart from each other, each with at least one deburring roller, the receiving area for the component to be deburred extending between the deburring units. It can be provided that the two Entgratmaschineen are arranged mirror-symmetrically to each other.
  • the deburring device may comprise one or more supporting elements, such as e.g. Tables on or on which the one or more Entgrattechniken are.
  • Each of the deburring units can have their own support element. However, it is also conceivable if two or more than two deburring units are arranged on a common support element.
  • the deburring device may be designed such that the deburring process takes place while the component is being moved through the deburring device.
  • the deburring device can have exactly one or more deburring rollers or deburring units arranged one behind the other. If a plurality of successively arranged Entgratrollen or deburring units provided, the edge of the component is thus repeatedly processed or deburred. In this case, the Entgratrollen following each other in the direction of passage can be identical or different.
  • the deburring device may comprise one or more drive units, which are designed to move the component through the receiving area of the deburring device and thus past the deburring unit or rollers.
  • the Entgratrolle (s) are stationary and the part to be deburred is moved.
  • the reverse case is included, as well as the case that neither the Entgratrolle (s) nor the component to be deburred are arranged stationary.
  • the at least one Entgratrolle can be carried out without or with drive, which is arranged so that this puts the Entgratrolle in the rotational movement.
  • This change in the distance can be made manually or by means of one or more drive units.
  • the invention further relates to a method for chipless deburring of one or more edges of a component, in particular a plate-shaped component in a deburring device according to one of claims 1 to 9.
  • the plate-shaped member is a wall, preferably an outer wall, e.g. around a side wall of a household appliance, preferably a refrigerator and / or freezer or a strip material.
  • the wall is preferably made of sheet metal.
  • the invention relates to the use of a deburring device according to one of claims 1 to 9 for chipless deburring of one or more edges of an outer wall, preferably a side wall of a household appliance, preferably a refrigerator and / or freezer or a strip material.
  • the present invention finally relates to a manufacturing plant for the production of exterior walls of household appliances, in particular of refrigerators and / or freezers, wherein the deburring device is integrated according to the invention in this manufacturing plant.
  • This manufacturing plant has different preferably stationarily arranged stations, of which one station is the deburring device, which is traversed by the components for their deburring.
  • FIG. 1 shows a front view of a deburring device 10 according to the invention.
  • the deburring device 10 has two tables or other supports 30, on each of which a deburring unit 20 is located.
  • the reference numeral 100 denotes the receiving area between the deburring units 20 and the reference character P denotes a metal plate which is deburred along its two edges extending perpendicular to the plane of the paper.
  • the direction of movement in which the plate P moves through the stationary deburring device 10 is perpendicular to the plane of the paper.
  • FIG. 2 shows a plan view of the deburring device 10 according to FIG. 1 .
  • the same reference numerals for the same or functionally identical parts are used.
  • the arrow marked with the reference symbol D shows the direction in which the plate P passes through the device 10.
  • the plate P is at its two in the direction of passage D extending edges P1 and P2 (according FIG. 2 deburred right and left).
  • the invention also includes the case that only one deburring unit is provided, so that only one edge P1 or P2 is deburred if this is sufficient for the respective application.
  • FIG. 2 It can be seen that the two Entgratmaschineen 20 are arranged perpendicular to the direction D in guides 28 movable or variable in their position. In this way, an optimal distance between the two Entgrategrats can be adjusted to each other.
  • the deburring units are delivered manually, by motor or by cylinder, i. moved towards each other. Thus, lateral forces are compensated as possible.
  • the boards P are deburred during transport in the plant cycle in which the deburring works.
  • FIG. 3 shows a sectional view along the line AA in FIG. 2 .
  • the detail 1 in FIG. 3 is in FIG. 4 magnified reproduced.
  • the deburring unit 20 has two superimposed rubberized rollers 21, 22, between which extend the edge regions of the plate P.
  • the contact area of the rollers to each other is at the height of the recess of Entgratrolle 23.
  • the rollers 21, 22 serve to fix the plate P. such that its edge region is arranged in the recess of the deburring roller 23.
  • the Entgratrolle 23 is spring-loaded towards the plate P, ie according to FIG. 4 to the left and thus exerts a certain pressing force on the edge of the plate P to be deburred.
  • FIG. 5 is a front view of the Entgratrolle 23 can be seen.
  • the Entgratrolle 23 has on its outer circumference a circumferential recess 23 '. In this recess is to be deburred edge of the plate.
  • the recess 23 ' is formed by two converging, preferably in the form of a V extending leg S, between the end regions, the groove N is located.
  • the spaced from the outer periphery of the Entgratrolle 23 ends of the legs S thus go over in Nutwandungen.
  • the groove N is formed by two parallel, opposite groove walls and a rounded, preferably U-shaped groove base with the radius R.
  • the dimension A is in the range between 1.0 mm and 2.0 mm, preferably 1.5 mm.
  • the angle of the legs S with respect to the horizontal is preferably in the range between 30 ° and 60 ° and preferably at 45 °.
  • the dimension C is preferably 0.3 mm to 0.9 mm and preferably 0.5 mm, the angle of the corresponding slope relative to the horizontal is preferably in the range between 30 ° and 60 ° and preferably at 45 °.
  • the dimension D is preferably 10 mm to 14 mm and preferably 12 mm
  • the dimension B is preferably 23 mm to 27 mm and preferably about 25 mm
  • the dimension E is preferably 2 mm to 4 mm and preferably about 3 mm
  • the Dimension F is preferably 4 mm to 6 mm and preferably about 5 mm
  • the dimension G is preferably 10 mm to 15 mm and preferably about 13 mm
  • the dimension H is preferably 1 mm to 5 mm and preferably about 3.5 mm
  • the dimension I is preferably 0.4 mm to 0.8 mm and preferably 0.6 mm
  • the dimension J is preferably 1.5 mm to 2.1 mm, and preferably about 1.8 mm
  • the dimension K is preferably 2 mm to 2.6 mm and preferably 2.3 mm
  • the radius R of the groove N is preferably in the range between 0.2 mm and 0.4 mm and preferably at 0.3 mm.
  • FIG. 7 shows the Entgratrolle 23 in a side view.
  • the dimension L is preferably 27 mm to 33 mm, and preferably 30 mm
  • the dimension M is preferably 6 mm to 10 mm, and preferably 8 mm.
  • FIG. 8 shows a further embodiment of a deburring device according to the invention. This embodiment is used in particular for the chipless deburring of strip material P '(coil).
  • the deburring units 20 are connected to one another and are integrated into the device 10 in a floating manner. Thus, the deburring units 20 adapt to the course of the strip material (coil) (saber).
  • the above dimensions are preferably for a sheet thickness of 0.5 mm. Usually sheet thicknesses in the range of 0.4 mm to 2 mm are used. The dimensions or preferred ranges given above are then proportionately larger or smaller, since they are preferably based on a sheet thickness of 0.5 mm.
  • the edge of the metal part is rounded off, like this FIG. 9 b) evident.
  • the sheet thickness is 0.5 mm and the radius of the rounded edge 0.2 mm, which are only exemplary values.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
EP16200005.3A 2015-11-23 2016-11-22 Dispositif d'ébavurage et procédé d'ébavurage Withdrawn EP3170572A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015015132 2015-11-23
DE102016000371.5A DE102016000371A1 (de) 2015-11-23 2016-01-15 Entgratvorrichtung

Publications (1)

Publication Number Publication Date
EP3170572A1 true EP3170572A1 (fr) 2017-05-24

Family

ID=57391832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16200005.3A Withdrawn EP3170572A1 (fr) 2015-11-23 2016-11-22 Dispositif d'ébavurage et procédé d'ébavurage

Country Status (1)

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EP (1) EP3170572A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602452A1 (de) * 1966-12-13 1970-12-03 Gau Walter Blechabgratvorrichtung
JPS54122665A (en) * 1978-03-16 1979-09-22 Tochigi Bankin Kk General purpose burr remouing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602452A1 (de) * 1966-12-13 1970-12-03 Gau Walter Blechabgratvorrichtung
JPS54122665A (en) * 1978-03-16 1979-09-22 Tochigi Bankin Kk General purpose burr remouing machine

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