EP4104972A1 - Outil d'usinage, dispositif d'usinage et procédé d'usinage - Google Patents

Outil d'usinage, dispositif d'usinage et procédé d'usinage Download PDF

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Publication number
EP4104972A1
EP4104972A1 EP22177673.5A EP22177673A EP4104972A1 EP 4104972 A1 EP4104972 A1 EP 4104972A1 EP 22177673 A EP22177673 A EP 22177673A EP 4104972 A1 EP4104972 A1 EP 4104972A1
Authority
EP
European Patent Office
Prior art keywords
machining
tool
guide
axis
rotation
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
EP22177673.5A
Other languages
German (de)
English (en)
Inventor
Jochen BÖCK
Marc BÖCK
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.)
Boeck GmbH
Original Assignee
Boeck 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 Boeck GmbH filed Critical Boeck GmbH
Publication of EP4104972A1 publication Critical patent/EP4104972A1/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
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/20—Mountings for the wheels

Definitions

  • the invention relates to a machining tool with machining element carriers which are arranged around an axis of rotation of the machining tool and whose distance from the axis of rotation of the machining tool can be adjusted.
  • the invention also relates to a processing device with such a processing tool and a processing method using such a processing tool.
  • Components cut with oxygen have oxide layers on the cut edges. These layers pose a risk of adhesion for subsequent processes. For example, they can cause the coating to flake off and must therefore be removed.
  • the oxide layer is removed mechanically by grinding or brushing. Both editing options can be used in manual editing processes. In the field of machining, fiber materials or spring wire elements are mostly used with the aim of achieving metallically bright edge surfaces.
  • wire brushes are usually used to remove oxide layers. Most of the time, these are multi-row trimming arrangements with the fibers positioned at an angle. Due to the inclined position of the fibers, the tool works piercingly on the edge.
  • spring wire cylinders or oxide rollers are used. Spring wire elements are threaded onto shafts, flexibly mounted and distributed over the circumference.
  • the object of the present invention is to specify a machining tool, a machining device and a machining method which make it possible to continuously adjust a radius of the machining tool.
  • the object is achieved by the processing tool according to claim 1, the processing device according to claim 12 and the processing method according to claim 14.
  • a machining tool which has a specific number, identified below as n, of machining element carriers where n ⁇ 2.
  • the machining element carriers are arranged around an axis which is referred to below as the axis of rotation of the machining tool. This axis should initially only draw a straight line here, not necessarily a technical axis.
  • the processing element carriers can then carry a large number of processing elements, which can ultimately effect the processing of the workpiece.
  • the processing element carriers can be straight and particularly preferably run parallel to the axis of rotation of the processing tool.
  • the processing element carrier wools, on which the processing elements can be flexibly or resiliently mounted, are particularly suitable.
  • the machining tool according to the invention also has a first end element and a second end element, between which the n machining element carriers are arranged.
  • the processing element carriers are connected to the first end element and the second end element.
  • the n processing element carriers thus each extend from the first end element to the second end element. If the machining element carriers are optionally straight, they can advantageously extend parallel to the axis of rotation of the machining tool from the first end element to the second end element.
  • the first and/or the second end element each has two guide devices. At least one end element therefore has two guide devices.
  • One of the two guide devices for each of the n processing element carriers has a guide element, referred to here as the first guide element, which runs in a plane perpendicular to the axis of rotation of the processing tool and through which the corresponding processing element carrier is guided.
  • Each of the processing element carriers is therefore guided by its own first guide element, so there are n first guide elements.
  • the other of the two guide devices of the same end element also has a guide element for each of the n processing element carriers, which also acts as a second guide element should be designated. So there are n second guide elements.
  • the second guide elements also run in a plane perpendicular to the axis of rotation of the machining tool. In each case one of the processing element carriers is guided by one of the second guide elements.
  • At least one of the first and second end elements has two guide devices, each with n guide elements, and each processing element carrier is guided by a guide element, referred to as the first guide element, of the first of the two guide devices and by a guide element, referred to as the second guide element, of the second guide device .
  • both end elements can also be designed in this way.
  • projections of those guide elements of the two guide devices that guide the same machining element carrier intersect at a non-vanishing angle when projected onto a common plane perpendicular to the axis of rotation of the machining tool in every position of the guide device.
  • the mathematical process in which the spatial coordinates of the guide elements, which run in the direction of the axis of rotation of the machining tool, are set to zero is to be understood here as projection.
  • the projection can take place in the direction of an extension of the corresponding processing element carrier, which is guided by these guide elements. Since the processing element carrier is guided by both guide elements, it can be held in this way precisely at the crossing point of the respective first and second guide element.
  • the processing element carriers are straight and run parallel to the axis of rotation of the processing tool, then said projection onto the common plane can advantageously take place in the direction of the axis of rotation of the processing tool.
  • the coordinate of the guide elements is set to zero in the direction of the axis of rotation of the machining tool.
  • the projections of those guide elements of the two guide devices that guide the same processing element carrier can be on the common plane perpendicular to the axis of rotation of the processing tool, in any position of the guide devices of the corresponding end element at a distance that is the same for all processing element carriers cutting to the axis of rotation of the machining tool.
  • the processing element carriers are at the same distance from the axis of rotation of the processing tool in all positions of the guide devices of the corresponding end element.
  • the processing element carriers thus lie on a circle in a plane perpendicular to the axis of rotation of the processing tool around the axis of rotation of the processing tool.
  • the guide elements of one of the two guide devices can run straight at least one of the end elements.
  • the first or the second guide elements can therefore each run straight. They particularly preferably run in the radial direction with respect to the axis of rotation of the machining tool.
  • the respective other guide elements ie the guide elements of the respective other of the two guide devices of the same end element, can advantageously run in a spiral shape around the axis of rotation of the processing tool.
  • a spiral can be understood to mean a curve that runs around a point or an axis and moves away from or approaches the point or axis in the course of the angle.
  • the guide elements can therefore each extend in a specific angular range around the axis of rotation of the machining tool and move away from the axis of rotation of the machining tool in the course of this extension.
  • all helical end elements and/or all straight end elements can extend from the same starting radius to the same ending radius with respect to the axis of rotation of the machining tool.
  • the guide elements advantageously move away from the axis of rotation of the machining tool in the same direction.
  • the spirally running guide elements can be arranged in such a way that exactly two of the spirally running end elements are present in each radial direction with respect to the axis of rotation of the machining tool.
  • the machining element carriers can be arranged equidistantly around the axis of rotation of the machining tool in the circumferential direction.
  • the guide elements of each of the two guide devices are also arranged equidistantly in the circumferential direction around the axis of rotation of the machining tool. This means that the distances between adjacent guide elements or processing element carriers along a circumference around the axis of rotation of the processing tool are the same for all respectively adjacent guide elements or processing element carriers.
  • the guide devices can be discs, which are particularly preferably circular with the axis of rotation of the machining tool in the center.
  • the guide elements can then be formed in these disks.
  • the discs are preferably in a plane that is perpendicular to the axis of rotation of the machining tool.
  • the guide elements can be designed as elongated holes in these disks, with elongated holes being understood to mean both grooves and through holes.
  • An embodiment is particularly preferred where the guide elements of the guide device facing the processing element carriers are through bores, ie continuous holes, and the guide elements of the guide devices facing away from the processing element carriers are through bores or blind holes.
  • the processing element carriers can engage with their ends in these blind holes and end in these and be guided.
  • one of the guide devices in at least one of the end elements, can have a pointer element that extends through a through hole, referred to here as the pointer through hole, in the other of the guide devices of the same end element .
  • the pointer through-bore can run along a circumference around the axis of rotation of the machining tool over such an angular range that the machining element carriers move from a radially innermost position to a radially outermost position when rotated in this angular range. In this way, the pointer element can indicate the position of the processing element carrier through its position in the pointer passage bore.
  • the guide device facing away from the processing element carriers can have a scale on its surface facing away from the processing element carriers, which scale extends along the pointer through bore.
  • the scale can indicate those radii in which the processing element carriers are in that position in which the pointer element refers to the corresponding entry on the scale, or it can indicate angles by which the two guide devices are rotated in relation to one another.
  • one or both of the two guide devices can have at least one of the end elements on its circumference at least one gripping element that can be gripped from the outside, that is, which is accessible in the radial direction.
  • the gripping element can be, for example, a cutout in an edge of the corresponding guide device or an overhang on the edge of the guide device.
  • the recess can, for example, run radially inwards or the overhang can protrude radially outwards.
  • one of the guide devices in at least one of the end elements, can have a projection which engages in a recess in the other guide device of the same end element.
  • the projection can protrude beyond a surface of the guide device in the direction of the axis of rotation of the processing tool, for example, and the depression can be introduced into the other guide device in the direction of the axis of rotation of the processing tool.
  • the indentation is also possible for the indentation to be made in the direction of the axis of rotation of the machining tool in one of the guide devices, namely on the outer edge of this guide device, and for the projection to protrude in the radial direction perpendicular to the axis of rotation of the machining tool over the outer edge of the guide device, with the outer edge of the guide device having the projection has a smaller radial distance to the axis of rotation of the processing tool than the depressions in the other guide device.
  • the indentation extends in the circumferential direction around the axis of rotation of the machining tool over such an angular range that when the guide devices of this end element are rotated in relation to one another, the corresponding machining element carriers can just be displaced from one end to the other end of those guide elements that guide them, which extend over the smaller Extend area in the radial direction.
  • the indentation can preferably extend around the axis of rotation of the machining tool over such a circumference that it allows the machining element carrier to move precisely from its radially innermost to its radially outermost position.
  • the projection and the depression together thus define a maximum angular range by which the guide devices can be rotated in relation to one another.
  • the machining element carriers can preferably have straight rods that run parallel to the axis of rotation of the machining tool. They are therefore preferably perpendicular to the plane in which the guide elements run.
  • the processing element carriers can each have a large number of processing elements, which particularly preferably extend outwards from the axis of rotation of the machining tool in planes perpendicular to the axis of rotation of the machining tool. If the processing tool is rotated about the axis of rotation of the processing tool over a workpiece, the processing elements can move over the workpiece and process it in the process.
  • the machining elements can be spring wire elements which extend away from the corresponding machining element carrier on which they are arranged, in the direction away from the axis of rotation of the machining tool.
  • These spring wire elements can advantageously be in the form of wires which are wound around the corresponding processing element carrier with a plurality of turns and protrude radially outwards with one end. In order to prevent the spring wire elements from rotating about the tooling element carrier, the opposite ends of the wires can also protrude.
  • Each of the processing element carriers can then have a stop element which runs parallel to the corresponding processing element carrier and is at a distance from it which is less than the length of the projection of the spring wire which does not project radially outwards.
  • the stop element is preferably arranged opposite this overhang in such a way that the overhang is pressed against the stop element when the processing tool is used as intended.
  • the spring wire elements can preferably be curved on their radially outwardly extending processing sections. In order to remove oxide layers, it is advantageous if these machining ends are curved in the direction of rotation in which the machining tool is rotated when used as intended.
  • a machining device which, on the one hand, has a machining tool as described above and, on the other hand, at least one tool that is subject to wear.
  • the machining tool and the tool subject to wear are arranged above a common machining plane, which is the plane in which machining is to be carried out.
  • Both the wear-prone tool and the machining tool have a target distance from the processing level, which is determined by the requirements of the processing.
  • the machining tool is set to such a diameter that it is at the target distance from the machining plane when the wear-prone tool is at its target distance from the machining plane.
  • the at least one wear-prone tool can be a cylindrical tool that has an axis of rotation.
  • the distance between the axis of rotation of the tool subject to wear and the working plane can then be equal to a distance between the axis of rotation of the working tool and the working plane.
  • This ratio can be maintained by the machining tool according to the invention, since when the tool subject to wear wears out, the radius of the machining tool can be adjusted by the same amount.
  • a machining method in which a surface is machined with a machining tool as described above and with a tool subject to wear.
  • a distance between the tool subject to wear and the surface is reduced by such a distance that the wear is compensated for.
  • the machining tool is shifted in the direction of the surface by the same distance as the tool subject to wear, and the machining elements are shifted inward in the radial direction by that amount which is equal to the amount of wear.
  • the processing element carriers can be shifted by the corresponding amount.
  • machining elements themselves are subject to wear.
  • a method with only the machining tool can be performed in such a way that the machining elements or the machining element carriers are shifted outwards by the amount of wear be so that the machining elements remain in contact with the workpiece to be machined.
  • the figures 1 and 2 show an example of a machining tool according to the invention.
  • the machining tool has a number n with n ⁇ 2 machining element carriers 1a, 1b, . . . , 1n.
  • the machining element carriers 1a, 1b, ...., 1n are arranged around a straight line which is referred to as the axis of rotation of the machining tool.
  • this straight line is a middle straight line of the machining tool, from which all the machining element carriers 1a, 1b, . . . , 1n have the same distance in the example shown.
  • n 12.
  • the machining tool has a first end element 2a and a second end element 2b, between which the machining element carriers 1a, 1b, ...., 1n are arranged.
  • the processing element carriers 1a, 1b, ...., 1n are connected at their ends to the end elements 2a and 2b.
  • Both end elements 2a and 2b each have two guide devices 3aa, 3ab, 3ba, 3bb, which in the example shown are designed as circular discs which are perpendicular to the axis of rotation of the machining tool and through whose centers the axis of rotation of the machining tool runs.
  • the two guide devices 3aa, 3ab or 3ba and 3bb are shown spaced apart from each other. In the condition assembled as intended, as shown in 2 shown, the two guide devices are each arranged in contact with one another.
  • the guide devices 3aa, 3ab, 3ba, 3bb each have guide elements 3aa1 to 3aan, 3ab1 to 3abn, 3ba1 to 3ban, 3bb1 to 3bbn for each of the processing element carriers 1a, 1b, ...., 1n.
  • the figures 1 and 2 Due to the perspective representation, only the guide elements 3ab1 to 3abn of the guide device 3ab and 3ba1 to 3ban of the guide device 3ba can be seen.
  • the guide elements 3aa1 to 3aan, 3ab1 to 3abn, 3ba1 to 3ban, 3bb1 to 3bbn run in a plane perpendicular to the axis of rotation of the machining tool and guide the corresponding machining element carrier 1a, 1b, ...., 1n.
  • the guide elements 3aa1 to 3aan (due to the perspective in figures 1 and 2 not visible) of the guide device 3a1 and the guide elements 3ba1 to 3ban of the guide device 3ba run in 1 spirally around the axis of rotation of the machining tool.
  • the straight guide elements 3ab1 to 3abn and 3bb1 to 3bbn are designed as elongated through holes.
  • the spirally running guide elements 3aa1 to 3aan and 3ba1 to 3ban are in figures 1 and 2 designed as elongated blind holes, but they can also be through holes.
  • the guide device 3aa has a pointer through hole 4 which runs along the circumference of the guide device 3aa.
  • a scale 5 is arranged on the edge of the pointer through hole 4, which can indicate, for example, angles or distances of the machining element carrier 1a to 1n from the axis of rotation of the machining tool.
  • the guide device 3ab has a pointer element 6 (in 4 to recognize), which extends through the pointer through-hole and through its position along the scale 5 indicates a setting state of the machining tool.
  • Each end element 2a, 2b of the guide devices 3aa, 3ab, 3ba, 3bb has at least one, in the example shown three, projections 7 which engage in corresponding depressions 8 in the respective other guide device.
  • the indentations 8 extend in the circumferential direction around the axis of rotation of the processing tool over an angular range which is dimensioned in such a way that when the guide devices rotate in relation to one another, the processing element carriers 1a, 1b, Vietnamese, move 1n from one end of at least one guide element 3aa1 to 3aan, 3ab1 to 3abn, 3ba1 to 3ban, 3bb1 to 3bbn to its opposite end.
  • the processing element carrier 1a, 1b, ...., 1n have a plurality of processing elements 9, which are designed here as spring wire elements and from the corresponding processing element carrier 1a, 1b, ...., 1n in planes perpendicular to the axis of rotation in the direction of extending away from the axis of rotation of the machining tool.
  • the spring wire elements 9 are formed by winding spring wire onto the corresponding processing element carrier 1a, 1b, ...., 1n and bent in outwardly protruding sections in the direction of the intended direction of rotation.
  • the sections of the processing elements 9 that are bent in this way and extend outwards shall be referred to as processing sections of the processing elements 9 .
  • the wires protrude beyond the winding at their ends opposite the processing sections, which cannot be seen here, and each strike against a stop element 10a, 10b, ...., 10n, which in figure 5 can be seen.
  • These stop elements are arranged in such a way that these projections of the processing elements 9 abut against the stop elements 10a, 10b, . . . , 10n when used as intended.
  • FIG. 12 shows a plan view of one of the end members 2a, in which the guiding device 3aa facing the viewer is transparent. That to the figures 1 and 2 What was said applies here analogously. It can be seen that the guide elements 3aa1 to 3aan of the one guide device 2aa intersect with corresponding guide elements 3ab1 to 3abn of the guide device 3ab at a point in which the corresponding processing element carrier 1a, 1b, ...., 1n is held. It can be seen that in this example the guide elements 3aa1 to 3aan, 3ab1 to 3abn, 3ba1 to 3ban, 3bb1 to 3bbn are arranged equidistantly from one another in the circumferential direction. It can also be seen that in this example at least one, in this case three, pointer passage bores 4 are provided, each with a pointer element 6 and a scale 5 .
  • the outer guide device 3aa has a recess 11 which is made in the outer edge of the guide device 3aa and on which the guide device can be gripped for turning.
  • figure 5 shows a plan view of the in the Figures 3 and 4 shown end element, but towards the inner guide device 3ab.
  • the guide elements 3ba1 to 3ban are at the top.
  • the spiral-shaped guide elements 3aa1 to 3aan of the guide device 3aa can be seen through the guide elements 3ba1 to 3ban.
  • These end sections pass through U-shaped indentations in end sections of stop elements 10a to 10n.
  • Spring wire elements 9 are wound around the processing element carriers 1a, 1b, . . . , 1n as processing elements 9, so that they protrude radially outwards. With their radially outwardly protruding areas, the machining sections, they are curved in the direction of the intended rotation of the machining tool.
  • FIG. 6 shows an example of a machining device 12 according to the invention, which on the one hand has a machining tool 13 as described above and on the other hand a tool 14 subject to wear.
  • a workpiece 15 is to be machined with the machining tool 13 and the wear-prone tool 14, the surface of which facing the tools defines a machining plane.
  • the workpiece is guided past the tools 13 and 14 on a transport device 16 .
  • the diameter of the tool 14, which is subject to wear decreases due to wear.
  • the device 12 can then be moved towards the workpiece 15 to compensate for this wear.
  • the diameter of the machining tool 13 is reduced by rotating the guide devices 3aa, 3ab, 3ba, 3bb in relation to one another.
  • the distance between the processing elements 9 is selected in each case in such a way that they touch the tool for processing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
EP22177673.5A 2021-06-17 2022-06-07 Outil d'usinage, dispositif d'usinage et procédé d'usinage Pending EP4104972A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021206237.7A DE102021206237A1 (de) 2021-06-17 2021-06-17 Bearbeitungswerkzeug, Bearbeitungsvorrichtung und Bearbeitungsverfahren

Publications (1)

Publication Number Publication Date
EP4104972A1 true EP4104972A1 (fr) 2022-12-21

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EP22177673.5A Pending EP4104972A1 (fr) 2021-06-17 2022-06-07 Outil d'usinage, dispositif d'usinage et procédé d'usinage

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EP (1) EP4104972A1 (fr)
DE (1) DE102021206237A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117103030A (zh) * 2023-10-19 2023-11-24 广州市柏琳汽车零件制造有限公司 一种汽车空调压缩机生产用配件打磨设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2987866B2 (ja) * 1990-02-28 1999-12-06 スズキ株式会社 回転研削工具
DE69819560T2 (de) * 1997-11-03 2004-05-13 Hh Patent A/S Verfahren zum schmiergeln von artikeloberflächen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2987866B2 (ja) * 1990-02-28 1999-12-06 スズキ株式会社 回転研削工具
DE69819560T2 (de) * 1997-11-03 2004-05-13 Hh Patent A/S Verfahren zum schmiergeln von artikeloberflächen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117103030A (zh) * 2023-10-19 2023-11-24 广州市柏琳汽车零件制造有限公司 一种汽车空调压缩机生产用配件打磨设备
CN117103030B (zh) * 2023-10-19 2024-04-05 广州市柏琳汽车零件制造有限公司 一种汽车空调压缩机生产用配件打磨设备

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