EP4301547A2 - Unité d'ébavurage et d'arrondi de bords dans une machine de meulage de surface - Google Patents

Unité d'ébavurage et d'arrondi de bords dans une machine de meulage de surface

Info

Publication number
EP4301547A2
EP4301547A2 EP22710381.9A EP22710381A EP4301547A2 EP 4301547 A2 EP4301547 A2 EP 4301547A2 EP 22710381 A EP22710381 A EP 22710381A EP 4301547 A2 EP4301547 A2 EP 4301547A2
Authority
EP
European Patent Office
Prior art keywords
rotation
axis
workpiece
processing unit
edge
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
EP22710381.9A
Other languages
German (de)
English (en)
Inventor
Christoph Giese
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.)
Karl Heesemann Maschinenfabrik GmbH and Co KG
Original Assignee
Karl Heesemann Maschinenfabrik GmbH and Co KG
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 Karl Heesemann Maschinenfabrik GmbH and Co KG filed Critical Karl Heesemann Maschinenfabrik GmbH and Co KG
Publication of EP4301547A2 publication Critical patent/EP4301547A2/fr
Pending legal-status Critical Current

Links

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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B24B41/047—Grinding heads for working on plane surfaces
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • 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
    • B24B9/002—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for travelling workpieces

Definitions

  • the invention relates to an edge processing unit for a surface grinding machine.
  • Grinding machines are generally used to process the surfaces of a workpiece. This surface treatment regularly serves to produce a desired surface quality, in particular to plan the surface and reduce the roughness of the surface. Special tasks in grinding can also be to create a desired surface structure in order to achieve technical or optical properties of the surface. In principle, grinding machines are used for all types of materials, i.e. wood-based materials, metal materials, plastics and ceramic materials.
  • Surface grinding machines are characterized in that they are designed in particular for processing panel workpieces. Such surface grinding machines are often designed in such a way that the panel workpiece is conveyed through the surface grinding machine by means of a conveying device in the horizontal orientation of the surface to be machined and is thereby machined by one or more machining units arranged in a row along the conveying direction. In this way, the surface can be brought to the desired surface quality in successive processing steps to be brought.
  • Surface grinding machines are also suitable for placing several panel workpieces next to each other on the conveyor device and consequently conveying and processing them in parallel through the surface grinding machine. A special requirement here is to process these parallel workpieces evenly, i.e. to achieve uniform and uniform processing over the entire processing width transverse to the conveying direction of the workpieces and to maintain this even after several processing operations and tool wear that has occurred accordingly.
  • Edge processing is carried out on the one hand on the outer edges of a panel workpiece, that is to say on the edges between the side edge surfaces and the surface of the workpiece that define the outer contour of the workpiece.
  • edges are processed on edges that are formed on recesses in the workpiece, such as drilled holes, punched openings or openings produced by means of laser or flame cutting or openings or depressions produced in some other way in the panel workpiece.
  • edge processing can include deburring, ie the removal of a material burr that protrudes from the manufacturing process of the opening or the outer contour, in order to achieve a clean edge without such a production-related burr.
  • edge processing can also include a connection of an edge, which is to be understood as meaning an increase in the edge radius through the edge processing.
  • Both the deburring and the rounding of an edge serve functional purposes such as the suitability of the workpiece for a specific application, for example to avoid damage when it comes into contact with other surfaces, improving corrosion protection through a better paint layer or coating thickness on the edge, and on the other hand occupational safety aspects such as avoiding injury to the operator or later user from the edges when handling the workpiece.
  • edge processing of workpieces such as plate workpieces is subject to specific problems and in particular problems that do not arise when grinding surfaces of such workpieces.
  • the aim is to subject the edge to mechanical processing, but not to change surfaces adjoining the edge or to change them as little as possible, in particular not to process them mechanically or to process them as little as possible.
  • edge processing is that a workpiece regularly has edges in completely different orientations.
  • a longitudinal direction of the panel workpiece which can correspond to a conveying direction of the workpiece through a grinding machine
  • an edge can be arranged parallel to this longitudinal direction, perpendicular to this longitudinal direction or obliquely to this longitudinal direction.
  • Each of these orientations can result in different deburring and fillet efficiencies when edge processing is performed.
  • the deflection of grinding elements of the grinding tool at the edge produces locally different effects of the grinding tool on the surface adjacent to the edge, depending on the orientation of the edge.
  • edges with different orientations can occur in one and the same workpiece, or that a single recess, for example a circular opening, has edges with practically any angular orientation with respect to the longitudinal direction of the workpiece and other edges,
  • edges on rectangular recesses have edges with four defined different orientations in relation to the longitudinal direction and additionally provide an additional problem of edge processing in the corners of the rectangular recess.
  • edge processing is extremely strongly influenced by the direction in which the processing tool is used. Even with edges that are aligned in the same way with regard to their edge line, it is decisive for the effectiveness of the edge processing whether the edge processing takes place with a direction of movement of the tool from the recess towards the surface or from the surface into the recess or whether the Processing direction is parallel to the edge or at an angle to the edge.
  • a further complication in edge processing lies in the fact that two adjacent edges can influence each other during processing, the intensity of the influence depending on the distance between the two edges.
  • the edge processing tool is often deflected and influenced by the edge that is first gripped by the grinding tool, with the result that the processing direction subsequent edge is influenced by the preceding edge during processing.
  • This phenomenon does not occur in the case of edges on large-area recesses or in the case of the outline edges of the workpiece—but it influences the edge quality on such slit openings in a workpiece to a large extent.
  • edge processing on panel workpieces is to provide edge processing that works in the same way and achieves the same result for all of these edge constellations that occur in practice, and in particular when different edge constellations occur on one and the same workpiece, and here the mechanical processing on the To limit edges and not to machine the surface of the workpiece or as little as possible. It is often necessary to carry out edge processing efficiently without damaging or removing a layer of zinc or foil on the surface of the workpiece.
  • an edge processing unit that is suitable for a surface grinding machine must also achieve the previously explained processing uniformity over the entire processing width.
  • a grinding machine is already known from EP 2 011 602 B1, in which rotating disc grinding bodies are used for surface treatment, which are guided circumferentially on a chain track. This grinding machine is optimized for high-quality surface grinding, but not for edge processing with maximum protection of the surface.
  • EP 1 541 285 A1 already discloses a throughfeed grinding machine for machining a workpiece surface.
  • This grinding machine uses rotating disk or roller brushes that are moved in translation along a path.
  • the roller brushes can be arranged in different orientations and fixed in these orientations.
  • This grinding machine is designed in particular for uniform surface treatment (grinding, polishing, roughening), we should also remove burrs and protruding wood fibers in the course of this surface treatment. It has been shown that this configuration of the grinding machine is not well suited for deburring and rounding edges if the surface is not to be processed or is to be processed as little as possible.
  • the grinder of the drum type is not well suited to performing edge finishing on workpieces having edges in different orientations with respect to the longitudinal axis of the workpiece.
  • this grinding machine has not proven itself to round off Finish edges in a high quality manner, avoiding or minimizing surface finishing when closely adjacent edges need to be finished.
  • DE 3 128 703 C2 already discloses a machine for deburring the edges of metal sheets or plates.
  • this machine several coaxially arranged roller brushes are used, which are driven alternately to rotate in opposite directions and are guided over the edges of the workpiece.
  • This configuration is suitable for deburring the edges of metal sheets or plates in a targeted manner, but is not suitable for deburring edges of a plate workpiece that are in different alignments, such as those that occur with recesses in the workpiece.
  • DE 9 116648 U1 discloses a grinding machine for grinding wooden workpieces.
  • this grinding machine several cylinder grinding wheels are arranged on a carousel, so that the rotation of the cylinder grinding wheels and the rotation of the carousel create a superimposed movement.
  • the entire carousel can be moved back and forth in an oscillating manner.
  • the grinding machine designed in this way is intended for processing surfaces and should in particular also be able to process irregular surfaces.
  • the kinematics are particularly suitable for carrying out an effective surface treatment and thereby obtaining sharp edges-deburring and rounding of edges is neither intended nor can it be effectively carried out according to this state of the art.
  • a device for sanding surfaces is already known from EP 1 051 283 B1, in which cylindrical grinding roller bodies are also arranged in a carousel arrangement and are rotated around the central roller axis on the one hand and around the carousel axis on the other for surface treatment.
  • the previously known technologies have disadvantages in particular when edges are present on the workpiece in different orientations and when edges are closely adjacent to one another. It is an object of the invention to provide a unit for edge processing, which can achieve edge processing, in particular deburring and/or rounding of edges, even in the case of workpieces with such arranged edges in a better way than the previously known technologies, without the to machine the edges of adjacent surfaces of the workpiece in a relevant way.
  • Another object of the invention is to carry out edge processing with minimized tool wear on such workpieces with such arranged and aligned edges.
  • an edge processing unit for a surface grinding machine comprising: a plurality of cylindrical roller brushes with a cylindrical surface and a plurality of radially extending deburring grinding elements on this cylindrical surface, each cylindrical roller brush having a first axis of rotation, which is a corresponds to the central longitudinal axis of the cylindrical roller brush, a first drive unit for driving each roller brush in a rotational movement about its first axis of rotation, a plurality of second axes of rotation, which are not aligned parallel to the first axis of rotation, each first axis of rotation being rotatably mounted about one of the second axes of rotation , a second drive unit for moving each first axis of rotation in a rotational movement about its second axis of rotation, a third axis of movement, the second axes of rotation for a movement axis g guided movement, a third drive unit for moving the second axis of rotation in a movement guided by the third axis of movement, in which the third axis
  • an edge processing unit for a surface grinding machine is proposed.
  • the edge processing unit is intended to be used in a grinding machine and can be provided as the only processing unit of the grinding machine if the grinding machine is only intended for edge processing.
  • the edge processing unit according to the invention can also be used in a grinding machine with several such units in addition to one or more other processing units, which are provided for example for the grinding of surfaces, polishing or other processing operations on a workpiece.
  • the grinding machine itself can have a workpiece support surface, which conveys the workpieces through the machine and accordingly relative to the edge processing unit by means of a conveyor device, such as an endless conveyor belt.
  • a workpiece support surface can also be a component of the edge processing unit itself, optionally including a corresponding conveyor device.
  • the edge processing unit can consequently also include, for example, a corresponding endless conveyor belt for receiving and conveying the workpieces through the edge processing unit.
  • the edge processing unit according to the invention comprises a plurality of cylindrical roller brushes. These roller brushes can be one or more parts and are designed as cylindrical bodies that have a large number of deburring grinding elements on their peripheral surface.
  • deburring grinding elements can be flexible, radially extending grinding belt sections for the construction of a flap grinding body as a roller brush or brushes made of a plastic material, possibly also as composite brushes, which have grinding or impact particles worked into plastic wires such as rubber strips or adhering to the surface, brushes made of metallic materials such as steel brushes or brass brushes, which therefore have corresponding metallic wires in a radial extension, for example designed as roller grinding bodies fitted with wire springs made of spring steel wires, or combined roller brushes can be provided which have brushes made of different materials on their peripheral surface. Different roller brushes can also be used in the edge processing unit, which differ, for example, in the trimming density or the material properties of the brushes.
  • the cylindrical roller brushes are rotatably mounted about a first axis of rotation, which corresponds to the central longitudinal axis of the cylindrical roller brush, and are driven by a first drive unit for rotation about this axis.
  • the rotation can be a continuous rotation in one direction of rotation, with the roller brushes all being able to rotate in the same direction or in different directions of rotation.
  • the rotational movement can also be an oscillating movement in which the direction of rotation of the roller brush is changed at regular or irregular intervals.
  • each cylindrical roller brush has a first axis of rotation, about which the roller brush rotates and which coincides with the central axis of the cylinder, and each roller brush is rotatably mounted about a second axis of rotation, about which this first axis of rotation can be rotated and, in turn, by means of a second drive unit into a continuous rotational movement or an oscillating pivoting movement is driven about this second axis of rotation.
  • roller brushes The number of roller brushes, the first axis and the second axis is therefore the same, it being understood that multi-part roller brushes can also be used, in which several roller brush segments are mounted coaxially and axially on a first axis of rotation are spaced rotatably mounted about a first axis of rotation and this first axis of rotation is in turn mounted rotatably about a second axis of rotation.
  • a drive unit within the meaning of the invention is to be understood as meaning one or more mechanical components which cause the necessary movement and force for the (rotational) movement to be transmitted.
  • a drive unit can also include an actuator, such as a drive motor, which drives the movement via these corresponding mechanical components.
  • a drive motor can also be coupled directly to a shaft rotating about the axis of rotation or directly to the roller brush for a direct drive, for example as a drive motor located within the roller brush in the manner of a motor roller.
  • first, second and third drive unit can be controlled independently of one another, but in alternative configurations two of these drive units or all three drive units can also be driven by a common drive motor, in that its drive power is transmitted via corresponding mechanical transmission elements (the Drive units) for the rotational movements and the movements along the closed guideway is transmitted.
  • the second axes of rotation are not arranged in a stationary manner, but rather are movably guided along a closed guideway and are moved along this closed guideway by the third drive unit.
  • a closed guideway is to be understood as a path that, starting from a starting point, moves along a path that leads back to this starting point.
  • the closed guide track can have different shapes. It is preferred if the closed guide track has an oval shape, with the longer axis of the oval preferably extending transversely to a conveying direction of the workpieces relative to the edge processing unit. In particular, it is preferred if the closed guide track has the shape of a Lame oval, preferably with n>2.
  • the third drive unit is preferably designed to move the second axes at a constant speed along the closed guide track. This makes it possible--in contrast to, for example, a reciprocal movement, as disclosed in DE 9 116648 U1, in which deceleration is inevitable at the reversal points and subsequent acceleration of the translational movement must take place, to avoid unfavorable dwelling of the roller brushes in the end points of the movement and thereby to achieve uniform processing
  • this three- or four-axis movement of the brush elements of the roller brushes relative to the workpiece achieves effective and uniform edge processing over the entire processing width, with maximum protection of the surface of the workpiece against unwanted mechanical processing. In particular, it is achieved that all edges on a workpiece are evenly deburred and rounded, i.e.
  • edges all have almost the same edge radius after processing, regardless of where these edges are on the workpiece, where the workpiece is placed on the workpiece support surface and how the edges are aligned. This is also achieved in particular when there are edges in different orientations and in close, mutually adjacent positions on the workpiece.
  • the edges can be deburred here.
  • the edge processing unit according to the invention can also perform a rounding of the edges as an alternative or in addition.
  • the second axes of rotation are perpendicular to the first axes of rotation, and/or the closed guideway lies in a plane that is perpendicular to the second axes of rotation, and/or the closed guideway lies in a plane, which is parallel to the first axes of rotation.
  • each first axis of rotation is perpendicular to the second axis of rotation about which it rotates. The first axis of rotation consequently moves in a plane that is perpendicular to the second axis of rotation.
  • the peripheral surface of the roller brush can be kept in a line of contact with the workpiece during superimposed rotations about the first and second axis of rotation, and the pressing force can be kept the same over the entire length of this line.
  • the second axes of rotation are perpendicular to a plane in which the closed guideway runs. The second axes of rotation are consequently moved in a translatory manner perpendicular to their direction of extension by the third drive unit. If the first and the second variant are executed, the closed guideway in a plane that is parallel to the first axes of rotation.
  • this configuration can also be achieved independently as a third variant if the first and second axes of rotation are not perpendicular to one another and the second axes of rotation are not perpendicular to the plane of the guideway. It is even more preferred if one, preferably every second axis of rotation runs through a roller brush, preferably a second axis of rotation intersects a first axis of rotation, in particular each second axis of rotation intersects a first axis of rotation.
  • the second axis of rotation lies in that roller brush which rotates about the first axis of rotation, which rotates about the second axis of rotation.
  • the second axis of rotation runs through the center of the roller brush in relation to its longitudinal extent along the first axis of rotation, ie is spaced equally from both end faces of the roller brush.
  • the second axis of rotation can also be arranged in such a way that it is spaced from this central position by no more than 25%, preferably no more than 10% of the total length of the roller brush along the first axis of rotation.
  • the second axis of rotation intersects the first axis of rotation. This can be provided for one of the roller brushes, it is preferably provided for each of the roller brushes.
  • the second axis of rotation runs at a distance from the first axis of rotation that is less than 25% of the diameter of the roller brush, preferably less than 10% of the diameter of the roller brush.
  • the edge processing unit according to the invention can be further developed by a workpiece support surface and a workpiece conveyor device for conveying the workpiece support surface in a workpiece conveying direction, with the workpiece support surface preferably lying parallel to the first axes of rotation and/or the workpiece support surface preferably lying parallel to a plane in which the closed guideway runs.
  • the edge processing unit comprises a workpiece support surface and a workpiece conveyor device, which are designed to convey one or more workpieces through the edge processing unit, preferably in such an orientation that the workpiece support surface and consequently a flat workpiece lying on it are parallel to the first Axis of rotation and / or parallel to a contact line of the outer peripheral surface of the roller brushes to the workpiece.
  • the workpiece support surface is alternatively or additionally parallel to the plane of the guideway, so that the roller brushes are guided by the movement along the guideway at a constant distance from the workpiece support surface.
  • the workpiece support surface has a support width perpendicular to the workpiece conveying direction and the closed guide track extends in the direction of the support width over a track width that is greater than or equal to the support width.
  • the closed guideway extends at least so far that it extends over the entire width of the workpiece support surface. It is preferred if the closed guide track extends beyond the support width, so that the lateral deflection points of the guide track in relation to the conveying direction are outside of the support width.
  • the roller brushes are deflected by their movement along the closed guide track exactly in the area of the side edge of the workpiece support surface or preferably outside this lateral boundary of the workpiece support surface, so that a workpiece or workpieces that extend over the entire conveyor width or are distributed thereon can also be processed by the edge processing unit can be processed with regard to all of their contour edges, in particular not resulting in a change in the processing parameters due to the deflection process of the guideway.
  • the second drive unit comprises a hollow shaft and the first drive unit comprises a drive shaft running through this hollow shaft.
  • the second drive unit includes a hollow shaft, which can rotate about the second axis of rotation and thereby guided the rotation movement of the first axis of rotation defined around the second axis of rotation.
  • the design with a hollow shaft also makes it possible to drive the brush rollers in rotation about the first axis of rotation by means of a drive shaft running through this hollow shaft, which is consequently a component of the first drive unit.
  • the rotational movement of this drive shaft must also be deflected in accordance with the angle between the first and second axes of rotation, that is to say in particular must be deflected by 90°.
  • a bevel gear can be provided for this deflection process or a deflected drive by means of a drive belt or the like.
  • this principle can also be inverted, ie the hollow shaft is part of the first drive unit and the drive shaft running through the hollow shaft is part of the second drive unit.
  • first drive unit and the second drive unit comprise an integral drive motor
  • second drive unit and the third drive unit comprise an integral drive motor
  • first drive unit and the third drive unit comprise an integral drive motor
  • the first and the second drive unit or the second and the third drive unit or the first and the third drive unit or all three drive units are driven by an integral drive motor, so that a correspondingly synchronous movement of the drive units jointly driven by this integral drive motor is carried out becomes.
  • the first drive unit comprises a first drive motor
  • the second drive unit comprises a second drive motor
  • the third drive unit comprises a third drive motor
  • the first, second and third drive motors are connected to a control unit in terms of signals, which is designed to control the first, second and third drive unit independently of one another.
  • all three drive units are equipped with their own drive motor and can therefore be controlled independently of one another via a control unit, ie in particular independently with regard to their direction of movement, their speed of movement and any oscillatory movement frequency.
  • This embodiment makes it particularly easy to adapt the edge processing unit to different materials of the workpieces to be processed, a desired degree of rounding of edges to be processed by appropriate control of the three drive motors set gates and adjust the edge processing unit to a dominant alignment of edges to be processed in relation to the conveying direction of the workpiece through the edge processing unit.
  • each, of the roller brushes comprises a first and a second roller segment, which are arranged axially adjacent to one another in relation to the first axis of rotation and are both mounted so as to be rotatable about the first axis of rotation, the first and the second roller segment being the first drive unit can be driven in the same direction of rotation, preferably at a different rotational speed, or the first and the second roller segment can be driven by the first drive unit in different directions of rotation.
  • roller brushes is divided into two or more roller segments, whereby these roller segments can be driven in the same direction of rotation but at different speeds, can be driven with different directions of rotation or can be driven in the same direction and at the same speed, but at different speeds may be constituted, for example, may have different brush elements.
  • the roller segments can be driven by means of the first drive unit, but in this embodiment it can also be provided that two separate first drive units are provided in order to drive the two roller segments independently of one another. The provision of such a plurality of roller segments in turn enables a better adaptation of the processing effect of the edge processing unit to increase edge processing efficiency and reduce processing of the surfaces of the workpiece adjoining the edge.
  • each second axis of rotation guides a first axis of rotation of a roller brush, with two mutually adjacent roller brushes being driven by the first drive unit, preferably to rotate in opposite directions of rotation about their respective first axis of rotation.
  • two roller brushes following one another along the guideway are driven in different directions of rotation with respect to the first axis of rotation.
  • the edge processing unit can be further developed by a sensor device for detecting one or more workpieces, with the sensor device being arranged in front of the edge processing unit in relation to a conveying direction of the workpieces through the edge processing unit and being connected to a control device in terms of signals, which continues to be signaled to the first, second and/or third drive unit and is designed to control the first, second and/or third drive unit as a function of a signal from the sensor device.
  • a sensor device is provided which can detect properties of the workpiece before processing by the edge processing unit.
  • the sensor device can be designed in different ways.
  • the sensor device can be designed solely to detect the dimensions and placement of workpieces on the workpiece support surface, which can be done, for example, by optical scanning, ultrasonic sensors or mechanical scanning. From such a sensor detection, the drive units can be controlled in such a way that in particular those areas of the workpiece support surface that are occupied by workpieces are swept over by the roller brushes to the desired extent and the workpieces are thereby processed.
  • the sensor device can also capture additional information about the workpiece, for example the thickness of the workpiece, the presence and orientation of edges on recesses in the workpiece, and from these sensor-detected properties, the control device can form a preferred control of the drive units, for example in order to create a signal for edge processing in the adjusted by the sensor detected alignment of the edge particularly favorable processing direction of the brush rollers.
  • the sensor device is a sensor strip extending transversely to the conveying direction over a width of the edge processing unit for optical scanning of the workpiece(s) and is designed to detect a dimension and/or orientation of a recess in a workpiece, or to detect an area of the workpiece that has been folded out of a workpiece plane lying in the conveying direction, or to detect a width dimension of the workpiece that extends in the width of the edge processing unit, or to detect a workpiece thickness, and depending on one or more of these detected properties to control the first, second and/or third drive unit.
  • the sensor device is designed as a sensor bar extends transversely to the conveying direction of the workpieces and can therefore detect all workpieces placed on the workpiece support surface, with dimensions and/or an alignment of recesses in the workpiece being detected in particular, in order to generate from this a preferred parameterization of the control of the drive units and the processing direction and speed of the roller brushes to optimize this dimension and direction.
  • beveled areas of the workpiece which therefore protrude beyond a workpiece surface, can be detected in order to specifically control roller brushes that sweep over such beveled areas at the moment of contact with the beveled area, for example to reduce their rotational speed around the first axis of rotation and thereafter Stroke the beveled area to increase the rotation speed back to an original level.
  • a width and a thickness of the workpiece or the position of the edges can be detected in order to set a corresponding infeed and processing width by the roller brushes and consequently to reduce or reduce the idling of the roller brushes over areas of the workpiece support surface that are not occupied by workpieces or over workpiece areas without edges to be avoided entirely and to set the contact pressure of the roller brushes on the workpiece by appropriate axial delivery in the direction of the second axis of rotation.
  • the edge processing unit can be further developed by an infeed device for setting the distance between the first axes of rotation and a workpiece support surface, with the infeed device being connected in terms of signals to an infeed control device which is designed to use the infeed device to set a distance or a contact pressure between roller brushes and a workpiece resting on the workpiece support surface.
  • the distance between the roller brushes and the workpiece support surface can be adjusted in a controlled manner by an infeed device, whereby on the one hand an increase or decrease in the contact pressure of the roller brushes on the workpiece can be controlled, and on the other hand the position of the first rotation axes can be tracked in order to avoid wear of the to compensate for roller brushes.
  • the infeed device can be designed to control each roller brush individually with regard to its distance from the workpiece support surface or the contact pressure, or all together, or, for example, to set a specific distance / a specific contact pressure for those roller brushes that a predetermined area of the closed guide track and set a different distance/a different contact pressure in a different area of the closed guideway. It is particularly preferred if the infeed control device is designed to control the infeed device depending on a drive parameter of the first, second or third drive unit, depending on a workpiece thickness and/or depending on a state of wear of the roller brushes.
  • a signal variable characterizing the wear or the machining resistance is determined using a drive parameter, for example a drive power or a drive motor current of a drive unit, and the infeed device is controlled as a function of this signal variable in order to compensate for a state of wear.
  • a drive parameter for example a drive power or a drive motor current of a drive unit
  • the infeed device is controlled as a function of this signal variable in order to compensate for a state of wear.
  • the workpiece thickness can also be detected and the infeed device can be controlled as a function of this workpiece thickness.
  • the edge processing unit can be further developed by a sensor device for detecting edge rounding on one or more workpieces, with the sensor device being arranged behind the edge processing unit with respect to a conveying direction of the workpieces through the edge processing unit and being connected to a control device in terms of signals, which is also connected in terms of signals to connected to a conveyor device for conveying the workpieces and is designed to control the conveyor device as a function of the edge rounding detected by the sensor device, in particular in such a way that when an edge rounding is detected that results in an edge radius that is smaller than a predetermined minimum edge radius, the conveyor device to trigger a reversal of the conveying direction in order to convey the workpiece back into the edge processing unit and to carry out a new processing by the edge processing unit to control the device unit, and/or to control the first, second or third drive unit with a changed drive parameter, and/or to control an infeed device for adjusting the distance between the first rotation axes and a workpiece support surface, in order to apply a
  • a sensor device which detects the workpiece after it has been processed by the roller brushes and can detect the rounded edges.
  • a sensor device can detect the edge rounding as an actual geometric measured value by optical scanning.
  • the sensor device can also be designed so that you by a comparative consideration of an optical reflection behavior Edges before processing and after processing, i.e. according to an upstream and a downstream sensor unit, determines a statement about the degree of edge rounding. Based on this statement about the edge rounding, a control device can then be used to decide whether the degree of edge rounding corresponds to a desired value or exceeds it, or whether the desired value has not yet been reached.
  • this sensor signal can then be used to trigger the workpiece to be moved back under the roller brushes by actuating the conveyor device on the workpiece support surface accordingly in order to process the edges again, or this can be signaled to the operator so that it feeds the workpiece back to the edge processing unit.
  • the drive parameters of one or more drive units can be adjusted in order to optimize the manner of processing by the brush rollers.
  • the contact pressure of the brush rollers on the workpiece can be increased or decreased by means of an infeed device in order to thereby improve an insufficient edge processing determined by the sensor device.
  • the aforementioned edge processing unit is further developed by an optimization unit that is designed to identify a first edge on a workpiece to be deburred, which is characterized by a sensor device according to its position, length or distance from another edge and is stored based on a comparison of a first edge radius determined after a first deburring process has been carried out, which is carried out using a first control data set, with a second edge radius determined after a second deburring process has been carried out, which is carried out with a second control data set, with one control data set being a delivery force between the roller brushes and the workpiece and/or a direction, a sequence of changes in direction and/or a speed of rotation of the roller brushes about the first axis of rotation, of rotation of the first axis of rotation about the second axis of rotation en and/or the movement of the second rotation axes along the guideway describes storing the first or the second control data set or a third control data set formed from the first and second control data set by extrapolation or inter
  • the edge processing unit is designed to record the processing result of this edge based on a previously processed edge and with processing parameters, i.e. in particular a control data set for the first, second and third drive unit as well as with geometric parameters of the edge, i.e. in particular its alignment. to link.
  • processing parameters i.e. in particular a control data set for the first, second and third drive unit
  • geometric parameters of the edge i.e. in particular its alignment. to link.
  • the better of the two sets of control data for this type of edge can thus be determined and stored.
  • this optimization process can be repeated as desired, or that other relevant parameters such as the material properties of the workpiece can be taken into account and in this way the edge processing unit in its control device with increasing operating time a large number of optimized control data sets for corresponding edges with a specific orientation , length, distance to other edges.
  • this optimization process is not limited to selecting the control data set found to be more efficient from two different control data sets, but can also be developed in such a way that a further control data set is calculated from these two control data sets, for example by interpolation, i.e. determination a third control data set lying in the value range between these two control data sets or by extrapolation, i.e. by logical, for example proportional extension of the values of the control data over the larger value from both control data sets or under the smaller value from both to create control data sets, and to use this third control data set as the optimal control data set.
  • a further aspect of the invention is a surface grinding machine, comprising a workpiece support surface, a conveyor device for conveying workpieces on the workpiece support surface and a plurality of grinding units which are arranged in a row one behind the other for the sequential grinding of a workpiece conveyed by the conveyor device, characterized in that one of the sanding units is an edge processing unit according to one of the preceding claims.
  • the edge processing unit according to the invention is suitable for being used in such a surface grinding machine and for carrying out edge processing as a processing step of this surface grinding machine. This can be supplemented by subsequent or preceding processing steps using other grinding units on the workpiece.
  • Another aspect of the invention is the use of an edge processing unit of the type described above for deburring and/or rounding edges that are formed on the edge or in recesses of a workpiece, with edges on panel workpieces in particular being able to be processed particularly effectively by using the edge processing unit.
  • a further aspect of the invention is a method for deburring and/or rounding edges on a workpiece, with the steps: rotating a plurality of roller brushes about a first axis of rotation, which is preferably parallel to a surface of the workpiece, rotating each of the first Axis of rotation about a second axis of rotation assigned to the respective first axis of rotation, which is not aligned parallel, preferably perpendicularly, to the first axis of rotation, moving the second axis of rotation along a closed guideway, which preferably lies in a plane that is parallel to the first axis of rotation or perpendicular aligned with the second axes of rotation.
  • This method according to the invention can preferably be carried out with an edge processing unit or a surface grinding machine of the type described above. It is to be understood that in this method, in particular, the previously explained further forms of the edge processing unit according to the invention can also be used and the method steps made possible thereby can be carried out. In particular, it is preferred to develop the method by determining a position, alignment and/or a radius of an edge on the workpiece before and/or after deburring as a measurement parameter using a sensor device and that the direction and/or speed of rotation of the roller brushes is controlled around the first rotation axis, the rotation of the first rotation axis around the second rotation axis and/or the movement of the second rotation axis along the guide track as a function of the measurement parameter.
  • FIG. 1 shows a section of a grinding machine according to the invention with an edge processing unit according to the invention installed therein in a frontal view
  • FIG. 2 shows a perspective view of an edge processing unit according to the invention from the front at an angle from the side
  • FIG. 3 shows a perspective partial view of a first embodiment of a satellite of the edge processing unit according to FIG.
  • FIG. 4 shows a perspective partial view diagonally from below of a second embodiment of a satellite of the edge processing unit according to FIG. 2 with the possibility of receiving two roller brushes; the two roller brushes are hidden for better understanding,
  • FIG. 5 shows a perspective partial view diagonally from above of the satellite according to FIG. 4 showing the two roller brushes
  • FIG. 6 shows a perspective partial view diagonally from above of a third embodiment of a satellite of the edge processing unit according to FIG. 2 with the possibility of receiving two roller brushes,
  • FIG. 7 shows a perspective partial view diagonally from above of a fourth embodiment of a satellite of the edge processing unit according to FIG. 2 with the possibility of receiving two roller brushes
  • Fig. 1 shows a section of a grinding machine with two processing units used in it.
  • a longitudinal grinding unit L with a contact roller KW is arranged on the right-hand side, which can carry out surface treatment on a workpiece 31 running through on a machine table 30 in a horizontal plane.
  • the longitudinal grinding unit has an endless belt grinding body, which is brought into line contact with the workpiece by the contact roller KW.
  • An edge processing unit 60 is arranged to the left adjacent to the longitudinal sanding unit. This edge processing unit 60 can perform edge processing on the workpiece 31 .
  • the workpiece 31 resting on the machine table 30 is conveyed through the grinding machine in a conveying direction F from right to left in FIG.
  • the machine table 30, the longitudinal sanding unit L and the edge processing unit 60 are fastened to a machine housing 10 and are thereby positioned in relation to one another in a rigid construction.
  • An operating unit 20 is also arranged on a cantilever arm on the machine housing 10 and has both a control unit in the form of a programmable computer unit and a corresponding operator interface for inputting and outputting parameters and information.
  • the edge processing unit is shown in perspective in an isolated view.
  • the longitudinal sanding unit and parts of the machine table and the machine housing are not shown in order to better illustrate the edge processing unit.
  • the edge processing unit has a large number of roller grinding bodies, which are designed as roller brushes 40a, b, c, . . .
  • Each of the roller brushes 40a, b, c is rotatably mounted about a respective first axis of rotation 41a, b, c, .
  • the first axes of rotation 41a, b, c are aligned parallel to the upward-facing surface of the workpiece 30 to be machined, which rests on the machine table 30.
  • Each of the roller brushes 40a, b, c therefore forms a theoretically linear contact line with the workpiece 31.
  • the roller brushes 40a,b,c are fitted with a plurality of brush elements which extend radially outward from a cylindrical central core. In the figures, the roller brushes 40a, b, c are shown only symbolically.
  • Each roller brush 40a, b, c is rotatably mounted in a U-shaped holder 42a, b, c about the first axis of rotation.
  • Each retaining profile is connected at its top to a hollow shaft 130a, b, c extending in the vertical direction.
  • These hollow shafts 130a, b, c are each rotatably mounted on a suspension frame 45a, b, c about a second axis of rotation 44a, b, c.
  • Each suspension frame 45a carries two guide rollers 46a at its upper end and also two such guide rollers 47a at its lower end. With these guide rollers, the suspension frame 45a is guided in a translationally displaceable manner on a corresponding upper guide rail 60 and lower guide rail 61 .
  • These upper and lower guide rails 60, 61 each run in a horizontally oriented plane and form a guideway in these planes in the form of a closed Lame oval.
  • Each roller brush 40a, its U-shaped holder 42a, the hollow shaft 130a attached thereto and the suspension frame 45a with the guide rollers 46a, 47a attached thereto form the main components of a structural unit in the form of a satellite 110a.
  • the edge processing unit comprises several such satellites and each of the satellites is guided on the upper and lower guide rails 60, 61 for translational movement along the closed guide path which is defined by these two guide rails 60, 61.
  • Three endless toothed belts are arranged between the upper and lower guide rails, the ribbed side of which points radially outwards and which also run in the same Lame oval as the upper and lower guide rails.
  • a center toothed belt 90 is driven by a track drive unit 70 for revolving movement relative to the upper and lower guide rails.
  • Each of the suspension frames 45a,b,c is attached to this middle toothed belt 90 so that the satellites 110a,b,c are moved one behind the other in a closed guideway by the revolving movement of the middle toothed belt 90 along the lower and upper guide rails.
  • the toothed belt 120 can be stationary, i.e.
  • the U-shaped bracket rotates about the respective second rotational axis 44a, b, c of the offset satellites.
  • This second axis of rotation 44a runs concentrically to the hollow shaft 130a and extends in the vertical direction.
  • the second axis of rotation 44a, b, c runs through the respective roller brush 40a, b, c. It preferably intersects this roller brush in the middle between the two end faces of the roller brush and more preferably intersects the first axis of rotation 41a, b, c.
  • a rotation of the roller brush around the second axis of rotation in the middle of the roller brush does not cause any change in the relative speed between the outer circumference of the roller brush and the workpiece on a side of the roller brush that is radially to the outside of the second axis of rotation the relative speed is increased by superimposing the rotational speeds of the roller brush about the first and second axis of rotation, and on the opposite side of the roller brush, which is radially outward from the second axis of rotation, the relative speed of the outer circumference of the roller brush in contact with the workpiece is reduced by the same superimposition.
  • This kinematics results in a variable relative speed along the contact line between the roller brush and the workpiece that is favorable for edge processing, which achieves effective processing of edges of any orientation and at any distance from other edges.
  • FIG. 3 shows a first embodiment of a satellite that includes a roller brush, its mount and bearing, and part of its drive unit.
  • a belt pulley 141 is arranged at the lower end of this drive shaft, which pulley can be designed, for example, as a V-belt pulley, poly-V pulley or toothed belt pulley.
  • a drive belt 160 is wound around this pulley 141 .
  • the drive belt is in further along it is led out laterally from the U-shaped holder, deflected by 90° and looped around a belt pulley 142 which is connected to the brush roller in a torque-proof manner and which rotates about the first axis of rotation together with the brush roller.
  • a rotation of the upper pinion 140 caused by the toothed belt 100 can be transmitted to the brush roller 40a and the brush roller can thereby be driven in a rotational movement about the first axis of rotation 41a.
  • the toothed belts 100 and 120 can be designed as fixed toothed belt segments and the rotation of the roller brushes about the second axis of rotation and about the first axis of rotation is caused by the rolling movement of the upper pinion 140 and the lower pinion 150 on the upper toothed belt 100 and result from the lower toothed belt 120.
  • both the movement of the satellites 110 along the guideway and the two rotational movements around the first and second axis of rotation can be carried out by a single motor drive, with which the central toothed belt 90 is moved in a circumferential manner along the oval guideway.
  • Both the upper and the lower toothed belt 100, 120 or both can also be designed as drivable toothed belts that can also move in a circumferential direction and thereby generate an individual rotational movement about the first axis of rotation and an individual rotational movement about the second axis of rotation.
  • one or two additional motor drives are required to drive the upper and lower toothed belt, and by providing such three drive motors, an independent form of movement can be achieved with regard to the circulating movement of the satellites along the closed guide track, the rotation around the second Axis of rotation and rotation around the first axis of rotation are generated. This allows the kinematics to be individually adapted for certain edge processing processes.
  • a first drive motor 70 is arranged above the upper guide rail, which causes the upper toothed belt 100 to rotate.
  • a third drive motor 80 is arranged above the upper guide rail, which causes the central toothed belt 90 to rotate.
  • the lower toothed belt is stationary, so that the speed of rotation around the second axis of rotation and the speed of movement along the guideway are proportional to each other.
  • the lower toothed belt could also be set in a rotating motion via a gear on the first drive motor or via a second drive motor.
  • a first sensor bar 200 is arranged in the inlet area and a second sensor bar 210 in the outlet area on the machine housing 10 .
  • the two sensor strips 200, 210 extend over the entire width of the entry area and completely scan a workpiece 31 or several workpieces, which pass under the sensor strips, with an optical scanning device.
  • the sensor bar 200 in the infeed area is used to record the size and alignment of recesses and the edges formed on them as well as the outline with the corresponding edges of workpieces that are conveyed to the edge processing unit on the machine table, and to transmit this data to the control device in the Control unit 20 forward. Depending on this data, the drive motors of the edge processing unit can then be controlled accordingly.
  • the sensor bar 210 in the outlet is used to optically detect a workpiece processed by the edge processing unit and thereby to determine the edge rounding. This is also achieved by optical scanning. If sufficient edge rounding is determined by this measurement using the sensor bar 210, the workpiece can continue to run through the grinding machine and, if necessary, be fed to further processing steps. On the other hand, if the edge radius falls below a desired minimum value, the workpiece is conveyed back to the edge processing unit and subjected to edge processing again in order to produce the desired edge radius.
  • the drive motors of the edge processing unit can be controlled in such a way that such post-processing only takes place in certain areas in which it has been determined that the desired edge radius has not been reached.
  • the entire edge processing unit is supported or suspended within the machine frame 10 by means of hydraulic cylinders in the vertical direction, other configurations with a spring-loaded suspension/support or a pneumatically supported suspension or support being also possible.
  • This suspension or support can be adjusted with regard to its suspension or support force in order to be able to set a contact pressure of the roller brushes on the workpiece.
  • 4 shows a second embodiment of a satellite.
  • the satellite is designed to accommodate two roller brushes 210a,b.
  • the two roller brushes 210a, b lie concentrically on the first axis of rotation and both rotate about this first axis of rotation.
  • the internal drive shaft 131a carries a gear wheel 241 at the lower end, which meshes with two pinions 248a, b on both sides.
  • the two pinions 248a, b are rotatably mounted in the upper plate of the U-shaped bracket 242 and each carry a pulley 220a, b on the upper side of this upper plate.
  • These pulleys 202a,b are located to the side of the hollow shaft 130a and the drive shaft 131a of the satellite running in the hollow shaft 130a.
  • the right-hand pulley 220a is encircled by a drive belt 260a, which is deflected downwards by 90° at the right-hand edge of the upper plate of the U-shaped bracket and extends to a pulley 242a which is torque-proof with a receiving section 280a for one of the two Roller brushes 210a is provided.
  • a drive belt 260b extends from the pulley 220b to a pulley 242b which is connected to a second receiving section 280b for the second roller brush 210b.
  • the pulleys 242a,b and the receiving sections 280a,b are arranged coaxially to the first axis of rotation.
  • the two receiving sections 280a, b are connected to one another by means of a free-running support shaft 290, as a result of which the two receiving sections 280a, b are supported and axially centered on one another.
  • the two receiving sections 280a, b are designed to receive the two roller brushes 210a, b in a torque-proof manner.
  • the driving force for the rotation of the two roller brushes about the first axis of rotation is distributed on two sides of the U-shaped bracket 242 and distributed to the roller brushes 210a, b by the drive belts 260a,b.
  • this distribution takes place by means of the force distribution from the gear wheel 241 to the pinions 248a, b via the pulleys 220a, b and the drive belts 260a, b to the pulleys 242a, b.
  • this division of the driving force between the two roller brushes can also take place in a different way.
  • the first drive unit generally includes a mechanical division of the drive force for the rotation of two roller brushes about a common first axis of rotation, by means of which the two roller brushes are driven separately.
  • a configuration is shown in FIGS. 4 and 5 in which both roller brushes 210a,b rotate in opposite directions of rotation and at the same rotational speed about the first axis of rotation.
  • the two roller brushes 210a, b have different speeds of rotation. speed, for example by choosing different numbers of teeth on the pinions 248a, b or by choosing different effective diameters of the pulleys 220a, b or the effective diameter of the pulleys 242a, b or a combination of several of these measures.
  • the two roller brushes can also be driven in the same direction of rotation about the first axis of rotation. This can be achieved, for example, by crossing one of the straps 260a or 260b along its path.
  • FIG. 6 shows a third embodiment of a satellite. This third embodiment is also equipped with two coaxially arranged roller brushes 310a, b in a U-shaped holder.
  • the embodiment according to FIG. 6 differs from the embodiment according to FIGS. 4 and 5 in the manner of driving the two roller brushes in their rotation around the first axis of rotation.
  • a transfer case 340 is arranged between the hollow axle and the U-shaped bracket.
  • This transfer case can be designed, for example, as a bevel gear with a pinion seated on the drive shaft 131a and two ring gears. The rotational force about the second axis of rotation is transmitted from the hollow shaft through the housing of this transfer case 340 to the U-shaped bracket.
  • the drive shaft running through the hollow axle for the rotation of the roller brushes about the first axis of rotation goes as an input drive shaft into the transfer case 340 and is deflected there by 90° and distributed to two drive shafts 330a, b, which are each connected to one of the two ring gears within the bevel gear, for example are.
  • the two drive shafts 330a, b run parallel to the first axis of rotation on both sides of the U-shaped bracket. At the end of the two drive shafts 330a, b are again Arranged around pulleys, which transmit the rotational movement by means of respective drive belts 360a, b to corresponding pulleys 343a, b. These two belt pulleys 343a, b drive the two roller brushes 310a, b in the same way as in the embodiment according to FIGS. 4 and 5. In this embodiment too, the rotational speed of the two roller brushes 310a, b can be selected to be the same or different from one another and the direction of rotation of the two roller brushes 310a, b can be chosen in the same or opposite directions.
  • FIG. 7 shows a fourth embodiment of a satellite for the edge processing unit according to the invention.
  • the hollow shaft 130a on the gear wheel 450 together with the drive shaft 131a running therein on the gear wheel 440, extends into the area between the two roller brushes 410a, b and is connected there to a transfer case 460.
  • the driving force about the second axis of rotation is in turn transmitted directly via the hollow shaft to the housing of this transfer case 460 and the housing transmits this rotary motion to the first axis of rotation.
  • the drive force of the drive shaft 131a running in the hollow shaft 130a is distributed directly to the two roller brushes 410a, b, which are located on the left and right of this transfer case.
  • the transfer case 460 is therefore basically constructed in the same way as the transfer case 340, but no U-shaped bracket is provided in the fourth embodiment and due to the location of the transfer case 460 at the level of the first axis of rotation is a transmission of the driving force from the first drive unit with by means of belt pulleys and drive belts are not required in this variant.
  • the direction of rotation of the two roller brushes 410a, b can be chosen to be the same or opposite to one another and/or the rotational speed of the two roller brushes 410a, b can be chosen to be the same or different speeds by appropriate dimensioning and selection of the transfer case 460.

Abstract

La présente invention concerne une unité d'usinage de bord pour une meuleuse de surface, qui comprend : une pluralité de brosses rotatives cylindriques ayant une surface cylindrique et une pluralité de brosses sur ladite surface cylindrique, chaque brosse rotative cylindrique ayant un premier axe de rotation, qui correspond à un axe longitudinal central de la brosse rotative cylindrique, une première unité d'entraînement pour entraîner chaque brosse rotative dans un mouvement de rotation autour de son premier axe de rotation, une pluralité de seconds axes de rotation, qui ne sont pas parallèles au premier axe de rotation, chaque premier axe de rotation étant disposé de manière à tourner autour d'un des seconds axes de rotation, une seconde unité d'entraînement pour déplacer chaque premier axe de rotation en rotation autour de son second axe de rotation, et un troisième axe de déplacement, les deuxièmes axes de rotation étant guidés pour un déplacement guidé par le troisième axe de déplacement, et une troisième unité d'entraînement pour déplacer les seconds axes de rotation dans un mouvement guidé par le troisième axe de déplacement.
EP22710381.9A 2021-03-05 2022-03-04 Unité d'ébavurage et d'arrondi de bords dans une machine de meulage de surface Pending EP4301547A2 (fr)

Applications Claiming Priority (2)

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DE102021105394.3A DE102021105394A1 (de) 2021-03-05 2021-03-05 Aggregat zum Entgraten und Verrunden von Kanten in einer Flächenschleifmaschine
PCT/EP2022/055507 WO2022184882A2 (fr) 2021-03-05 2022-03-04 Unité d'ébavurage et d'arrondi de bords dans une machine de meulage de surface

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EP (1) EP4301547A2 (fr)
CN (1) CN117279740A (fr)
DE (1) DE102021105394A1 (fr)
TW (1) TW202300277A (fr)
WO (1) WO2022184882A2 (fr)

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DE3128703C2 (de) 1981-07-21 1983-09-15 Kunz Maschinen- und Apparatebau GmbH, 7850 Lörrach Maschine zum Entgraten der Ränder von Blechen, Platten oder dgl.
US5441440A (en) 1990-05-22 1995-08-15 Hh Patent A/S Method and machining apparatus for use especially in the sanding of items of wood in a sanding machine
DK165549C (da) 1990-05-22 1993-04-26 Hh Patent Aps Fremgangsmaade og bearbejdningsindretning til brug ved slibning af isaer traeemner i en slibemaskine
EP0471641A3 (fr) 1990-08-13 1992-03-11 Panwood Ltd Dispositif pour le finissage de surfaces
DE29508657U1 (de) * 1995-05-24 1995-09-14 Behr Rainer Schleifmaschine
CA2306131C (fr) 1997-11-03 2006-06-06 Hh Patent A/S Procede de poncage de surfaces d'articles
CN100372649C (zh) 2002-02-28 2008-03-05 阿曼达专利及许可公司 用于工作站的自动处理装置
DE20319366U1 (de) 2003-12-13 2004-03-11 Jakob Löwer Inh. von Schumann GmbH & Co. KG Durchlaufschleifmaschine zum Bearbeiten einer ebenen Werkstückoberfläche
DE102005011330B4 (de) * 2005-03-12 2018-11-08 Pi4_Robotics Gmbh Verfahren zur Lageerkennung eines Formteils
ITTO20050765A1 (it) * 2005-10-27 2007-04-28 Biesse Spa Centro di lavoro a controllo numerico per lastre di vetro, pietra, marmo o simili, con due o piu' teste di lavorazione
DE102007031656A1 (de) 2007-07-06 2009-01-08 Heesemann, Jürgen, Dipl.-Ing. Schleifmaschine
DE102007048544A1 (de) * 2007-10-09 2009-04-16 Paul Ernst Maschinenfabrik Gmbh Vorrichtung zum Schleifen von Werkstücken
IT1396807B1 (it) 2009-11-25 2012-12-14 Toncelli Macchina di levigatura o lucidatura di lastre di materiale lapideo, quale pietra naturale e agglomerata, ceramico e vetro.
KR101188842B1 (ko) * 2011-10-24 2012-10-08 한국항공우주산업 주식회사 디버링 장치
DE202013102671U1 (de) * 2013-06-20 2014-09-23 Weeke Bohrsysteme Gmbh Dickeneinstellung für Schleifmaschinen
KR101506867B1 (ko) * 2013-08-19 2015-03-30 김영근 디버링 머신
DE102016117991A1 (de) 2016-09-23 2018-03-29 Karl Heesemann Maschinenfabrik Gmbh & Co Kg Schleifmaschine

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WO2022184882A2 (fr) 2022-09-09
CN117279740A (zh) 2023-12-22
TW202300277A (zh) 2023-01-01
DE102021105394A1 (de) 2022-09-08
WO2022184882A3 (fr) 2022-11-03

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