EP1724081A1 - Vorrichtung zur materialabtragenden Bearbeitung von Bauteilen - Google Patents

Vorrichtung zur materialabtragenden Bearbeitung von Bauteilen Download PDF

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Publication number
EP1724081A1
EP1724081A1 EP06356056A EP06356056A EP1724081A1 EP 1724081 A1 EP1724081 A1 EP 1724081A1 EP 06356056 A EP06356056 A EP 06356056A EP 06356056 A EP06356056 A EP 06356056A EP 1724081 A1 EP1724081 A1 EP 1724081A1
Authority
EP
European Patent Office
Prior art keywords
machining
conveying
elements
tools
station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06356056A
Other languages
English (en)
French (fr)
Inventor
Daniel Ancrenaz
Denis Mugnier
Jean Marie Lemaire
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.)
Quadra 1 SAS
Original Assignee
Quadra 1 SAS
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 Quadra 1 SAS filed Critical Quadra 1 SAS
Publication of EP1724081A1 publication Critical patent/EP1724081A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0845—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for smoothing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/18—Apparatus or processes for treating or working the shaped or preshaped articles for removing burr

Definitions

  • the present invention relates to a device for machining building elements.
  • the construction elements of block type made of agglomerated concrete may, according to the known manufacturing methods, have irregularities in height according to a tolerance, which, according to one example, may be of the order of plus or minus 2 mm over a length 190 mm.
  • the subject of the present invention is a device for machining construction elements comprising at least one machining station comprising at least one machining tool intended for machining at least one face of a machine.
  • construction element means for holding in position at least one construction element comprising at least two bearing surfaces, substantially transverse to the plane of the faces to be machined, exerting a pressure stress in at least one direction substantially parallel to the planes faces to be machined, transmitted by contact to the construction element on at least two faces not intended to be machined
  • the machining device comprises means for conveying the construction elements, the tool machining being disposed laterally with respect to the conveying axis of the building elements, inclined with respect thereto, converging in the direction of conveying.
  • the machining device comprises at least one pair of machining tools, intended for the machining of at least two faces of a construction element, the machining tools of the same pair being arranged facing one another and laterally with respect to the conveying axis of the building elements, inclined with respect thereto, converging in the conveying direction.
  • the machining tools form an angle with the conveying axis of the construction elements, so as to form a difference in dimensions between the input and the output of the tool less than 10 mm, preferably of the order 2 mm.
  • the device comprises a loading station of the construction elements on the holding means in position, the conveying means being intended for conveying the holding means in position and the construction elements, from the loading station to the machining station .
  • the holding means in position and the conveying means are constituted by two bearing surfaces disposed facing each other and moving in the conveying direction in a coordinated manner on at least a part of the conveying path.
  • the device comprises a reference stop, shifted transversely to the conveying axis and intended for the positioning of the construction elements, in particular stacked, before machining.
  • the bearing surfaces comprise a conveyor belt and / or a belt.
  • the means for holding in position comprise a support comprising at least one through housing intended to receive at least one element and at least one movable wedge relative to the support constituting at least one of the bearing surfaces.
  • the at least one through housing comprises movable intermediate partitions delimiting through compartments in which the construction elements are received.
  • the bearing surfaces have a spacing to maintain several building elements in position adjacent.
  • At least one machining tool comprises a machining surface driven in rotation about an axis.
  • the device comprises means for adjusting the position of the machining tools, perpendicularly to the plane of the at least one face, intended to be machined, of a construction element held in the holding means in position.
  • the means for adjusting the position of the tools determine the position of the tools as a function of signals from at least one sensor indicating the size and positioning of the construction elements relative to the holding means in position.
  • the device comprises an unloading station located opposite the loading station, with respect to the machining station in the conveying direction.
  • the loading station is also an unloading station, the conveying movement being of the square cycle, or alternating type.
  • the machining tools can deviate to facilitate the return of the holding means in position and the construction elements to the loading and unloading station, after machining.
  • the building elements considered are in particular parallelepipedal building blocks 2 made from cast concrete.
  • Each element 2 comprises two opposite, substantially parallel, flat faces 3, as well as a lateral wall 4 whose section may be of various shapes.
  • Each element 2 furthermore commonly comprises one or more through-cavities arranged so as to open on the two opposite planar faces 3, and intended to lighten this element.
  • a machining device 6 of building elements 2 comprises a frame 7, on which are fixed at a machining station 8, a first and a second machining tool 9 and 10, the two tools 9 and 10 being located opposite, above and below a horizontal conveying path C of the elements 2, each tool 9, 10 being intended respectively for machining a flat face 3 of an element 2, in order to perform a machining simultaneous of these two opposite faces 3.
  • connection between the tools 9 and 10 and the frame 7 is made by means of a frame 12 fixed relative to the frame 7 and having horizontal guide rods 13.
  • the body of the tool 17 is secured to columns 18 having guide grooves 19 in which are received the guide rods 13 of the frame 12 for vertical translation guidance.
  • Each tool body 17 can thus be displaced in translation in the vertical direction.
  • Each tool body 17 comprises a motor for driving a plate 20 in rotation about a vertical axis A on which is fixed the tool 9, 10, consisting of an abrasive machining disk.
  • the elements 2 are conveyed along the path C, substantially rectilinearly, by means of a movable support 24 constituting a means for holding a set of elements 2 in position.
  • This mobile support 24 comprises a frame 25 having two opposite sides on each of which are arranged support and guide means 26.
  • These support and guide means 26 are constituted by two pairs of two rollers 26, rotatable relative to the frame 25, and intended to be guided in the rails 22.
  • the mobile support 24 also comprises drive means consisting of two motors 27 fixed to the frame 25 and driving respectively two drive gears 28, located on both opposite sides of the frame 25 rotated relative to the frame 25 and intended to cooperate with the fixed racks 23.
  • the frame 25 delimits a rectangular central crossing housing, divided into two half rectangular housing 29 and 30 by a central fixed wall 32, parallel to the conveying direction C.
  • Each half housing is divided into compartments 33, each intended to accommodate an element 2, by partition walls 34, parallel to each other, perpendicular to the median wall 32, and movable perpendicular to their plane.
  • Two first transverse pressure shims 35 are disposed on both sides of the half-housings opposite the medial wall 32, and movable relative to the chassis 25 in translation perpendicular to the conveying direction C.
  • each of these two first wedges 35 is ensured by a jack 36 bearing on the frame 25.
  • the guide in translation is provided by two tubular columns 37 secured to the frame 25, receiving two rods 38 integral with the wedge and coaxial with the columns 37.
  • the first two shims 35 are formed lights 39 allowing the passage of movable partitions and their movement.
  • Four second transverse pressure wedges 40 are arranged on both sides of the half-housings perpendicular to the medial wall 32, and movable relative to the chassis 25 in translation parallel to the conveying direction C.
  • each of the second wedges 40 is provided by a jack 42 bearing on the frame 25.
  • the translation guide of each second wedge 40 is provided by two tubular columns 43 integral with the frame 25, receiving two rods 44 integral with the wedge and coaxial with the columns 43.
  • the dimensions of the support 24, for the part intended to pass between the tools 9, 10, must of course be smaller than the spacing of the tools and the height of the elements 2 held by the movable support.
  • FIGS. 3 to 7 Various steps of the machining are illustrated in FIGS. 3 to 7.
  • the elements 2 are brought onto a board 45, which is positioned below a mobile support 24, guided by the rails 22, at the level a loading station 46, located upstream of the machining station 8, in the conveying direction C.
  • the elements 2 are initially placed on the board 45 by one of their flat face 3 intended to be machined, the two opposite planar faces 3 thus being oriented horizontally.
  • the elements 2 are arranged so that each of them can be positioned opposite a compartment 34.
  • the elements 2 are introduced into the compartments 34, moving the board 45 upwards, the pressure shims 35, 40 being in an open position and not exerting pressure to allow such introduction.
  • a first planar face 3 of the element is disposed above the support, a second planar face below.
  • the first shims 35 are then displaced to exert a transverse horizontal pressure on the elements 2.
  • the second wedges 40 are then displaced to exert a longitudinal horizontal pressure on the elements 2.
  • the support 24 moves towards the machining station 8, thanks to its drive means. Machining is performed simultaneously by the upper and lower tools 9 and 10, on the two planar faces 3 of the elements 2, the elements being held in position in the support 24, by a horizontal stress.
  • This arrangement is particularly advantageous for controlling the height of the element 2 between the two flat faces 3.
  • the support leaves the machining station 8 and moves to an unloading station 47, located after the machining station 8 in the conveying direction C, as shown in FIG.
  • the elements 2 are then carried by the plate 45, which can then be lowered with the elements 2.
  • the position of the machining tools 9 and 10 is vertically adjustable.
  • a safety device makes it possible to control that the products entering between the tools are of an acceptable size by the machine and a sensor enabling the servocontrol of the pins is located downstream of the machining station.
  • Servo control is used to compensate for tool wear, with corrections occurring as soon as the value of the machined blocks exceeds a certain tolerance range.
  • This range is narrower than the tolerance of the machine.
  • a tolerance range of the machine is of the order of +/- 0.3 mm, the tolerance range for the correction of the pins then being +/- 0.1 mm.
  • the loading station is also an unloading station, the conveying being of square or alternating cycle type, the support thus returning to the starting point at the end of the machining.
  • the machining tools can deviate to facilitate the return of the holding means and the building elements to the loading and unloading station, after machining.
  • the device comprises a single machining tool and a marble located opposite the machining tool, the marble constituting a stop to maintain the block in position in the direction perpendicular to the conveying direction and perpendicular to the plane of the tool.
  • This arrangement is a safety against a projection of the element or part of the element during machining.
  • a machining device 48 of building elements 2 comprises a frame 49, on which are fixed, at a machining station 50, a first and a second machining tool 52 and 53, the two tools 52, 53 being located side by side, opposite each other, with a horizontal conveying trajectory C of the elements 2, each tool 52, 53 being intended respectively to the machining of a plane face 3 of an element 2, in order to perform a simultaneous machining of these two opposite faces 3.
  • connection between the tools 52 and 53 and the frame 49 is made via a frame 54 fixed relative to the frame 49 and having horizontal guide columns 55.
  • a dedicated motor 56 controlling a not shown jack, a fixed part of which is connected to the frame and the moving part is connected to the body of the tool, makes it possible to define the horizontal relative position of the tool 52, 53 and the frame 49. .
  • the body of the tool 57 comprises guiding slots in which are received the guide columns 55 of the frame 49 for horizontal translational guidance.
  • Each tool body 57 can thus be moved in translation in the horizontal direction.
  • Each tool body 57 comprises a motor or transmission means for driving a plate 58 in rotation about a horizontal axis B on which is fixed the tool 52, 53, consisting of an abrasive machining disc.
  • the elements 2 are conveyed along the path C, substantially rectilinear way, by means of a lower belt conveyor 59, provided with support supports 60 and upper pressure means comprising a belt 62.
  • the lower belt conveyor 59 and the belt 60 constitute means for holding the elements in position.
  • the belt 62 is supported on the top of each stack.
  • the opposite planar faces 3 to machine construction elements 2 are thus arranged in a substantially vertical plane, in the conveying direction C and cleared to be machined by the tools 50, 52.
  • each support 60 is of width less than the width of the elements, and the spacing of the tools.
  • the driving of the stacks of elements 2 is ensured by the displacement of the conveyor 59 and the belt 62, in a coordinated manner.
  • the drive belt 62 may for example be made by rollers 63 which also impose a pressure stress.
  • the drive of the conveyor 59 can be performed by a suitable gear not shown.
  • the conveyor 59 and the belt 62 exert a pressure stress between them in a vertical direction, perpendicular to the conveying direction C, on elements 2 of the stacks, thus keeping them in position.
  • the steps of machining by the device are as follows.
  • the elements 2 are deposited on a support support 60 of the conveyor, for example by a robot equipped with a manipulator arm, in the form of stacks as shown in FIG. an unrepresented loading station located upstream of the machining station 50, in the conveying direction C.
  • the belt 62 is not present or is located at a distance from the conveyor greater than the size of a stack, to allow loading.
  • the support 60 moves to the machining station 50, with the movement of the conveyor 59, which it is secured.
  • the belt 62 comes into contact with the upper face of each stack, the conveyor 59 and the belt 62 then exerting between them a pressure stress in a vertical direction, perpendicular to the direction C of conveying, on elements 2 of the stacks, thus keeping them in position.
  • the machining is performed simultaneously by the tools 52, 53 located on either side of the conveying direction C, on the two planar faces 3 of the elements 2, the elements being held in position between the conveyor 59 and the belt 62, by a vertical stress.
  • This arrangement is particularly advantageous for controlling the width of the element 2 between the two flat faces 3.
  • the support leaves the machining station 8 and moves to an unloading station, not shown, located after the machining station 8 according to the conveying direction C.
  • the belt 62 moves away from the upper face of each stack, eliminating the maintenance by a vertical pressure constraint.
  • the unloading of the support 60 can be carried out, for example by a robot equipped with a manipulator arm, at a not shown unloading station.
  • the horizontal position of the machining tools 52 and 53 is vertically adjustable.
  • lateral guiding elements are arranged on either side of the conveying direction, before and / or after the machining station, in order to ensure that the stacks are maintained in an improved position.
  • a jogging system represented in FIG. 8 and comprising a vertical abutment 64 as well as pressing elements 65, each exerting a lateral pressure force, in the direction of the stop.
  • This jigging system makes it possible, when the construction elements 2 to be machined are arranged in a stack, to guarantee the verticality of the latter.
  • a stack unguided by a stop may come to be positioned randomly.
  • a pressing element 65 is disposed facing each construction element 2, bring each element 2 into contact with the vertical reference stop 64, ensuring proper positioning of the stack.
  • construction elements 2 thus positioned are then handled by the conveying elements, as previously described, and brought into the machining zone.
  • FIG. 9 more precisely describes the machining zone of each of the two embodiments of the invention, intended in particular for calibrating the elements of constructions 2.
  • the building elements 2, which may for example be stacked with respect to the second embodiment of the invention, are fed to the machining tools 9, 10, 52, 53 by the conveying means.
  • the machining tools are arranged facing one another, laterally with respect to the conveying axis 66, in an inclined manner with respect to the latter, converging in the conveying direction 67. More specifically, the tools are disposed at an angle between 0.01 ° ° and 0.23 °, preferably of the order of 0.045 ° relative to the conveying axis, so as to define a difference in dimensions between the inlet and the output of the tool between 0.5 mm and 10 mm, preferably of the order of 2 mm.
  • the distance between the tools 9, 10, 52, 53 is narrowing in the conveying direction 67, so that it is possible to perform the calibration by progressive machining.
  • This type of arrangement avoids calibration from rough machining and finishing machining, using only a pair of tools.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Machine Tool Units (AREA)
EP06356056A 2005-05-19 2006-05-16 Vorrichtung zur materialabtragenden Bearbeitung von Bauteilen Withdrawn EP1724081A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0505031A FR2885834B1 (fr) 2005-05-19 2005-05-19 Dispositif d'usinage d'elements de construction

Publications (1)

Publication Number Publication Date
EP1724081A1 true EP1724081A1 (de) 2006-11-22

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EP06356056A Withdrawn EP1724081A1 (de) 2005-05-19 2006-05-16 Vorrichtung zur materialabtragenden Bearbeitung von Bauteilen

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EP (1) EP1724081A1 (de)
FR (1) FR2885834B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106564126A (zh) * 2016-11-07 2017-04-19 南阳市天和机械有限公司 搓面单元、搓面装置及自动化搓面机
CN111844400A (zh) * 2020-08-04 2020-10-30 安庆米锐智能科技有限公司 一种装配式混凝土预制墙体制作加工机械及加工工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US930626A (en) * 1907-02-11 1909-08-10 Chetwood Smith Grinding-machine.
DE468886C (de) * 1926-12-29 1928-11-23 Netzsch Geb Anschleifen konvergierender nahezu ebener Flaechen an Koerper gleichzeitig mittels zweier mit der ebenen Stirnflaeche wirkender Schleifscheiben
EP0253768A1 (de) * 1986-07-02 1988-01-20 Alfred Schlaefli Verfahren und Maschine zum Schleifen einer ebenen Fläche
EP0440591A2 (de) * 1990-02-02 1991-08-07 Lohja Betonila Oy Verfahren zum Herstellen von Säulen aus Beton
DE4436148C1 (de) * 1994-10-11 1996-07-04 Keller Gmbh Verfahren und Vorrichtung zum seitlichen Planieren von Ziegelformlingen und/oder Ziegeln
DE29613831U1 (de) * 1996-08-09 1996-09-19 Wasmer Paul Vorrichtung zum beidseitigen Beschleifen mit einer Ausrichtvorrichtung
EP1266734A2 (de) * 2001-06-11 2002-12-18 Venix S.r.l. Verfahren und Vorrichtung zum Herstellen von Fliesen, insbesondere von venezianischen Bodenfliesen und dergleichen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT291837B (de) * 1969-02-24 1971-07-26 Wienerberger Baustoffind Ag Verfahren zur Herstellung maßgenauer, grobkeramischer Produkte, insbesondere Hohlziegel
DE19627148C1 (de) * 1996-07-05 1997-11-20 Paul Wasmer Vorrichtung zum beidseitigen Beschleifen von Steinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US930626A (en) * 1907-02-11 1909-08-10 Chetwood Smith Grinding-machine.
DE468886C (de) * 1926-12-29 1928-11-23 Netzsch Geb Anschleifen konvergierender nahezu ebener Flaechen an Koerper gleichzeitig mittels zweier mit der ebenen Stirnflaeche wirkender Schleifscheiben
EP0253768A1 (de) * 1986-07-02 1988-01-20 Alfred Schlaefli Verfahren und Maschine zum Schleifen einer ebenen Fläche
EP0440591A2 (de) * 1990-02-02 1991-08-07 Lohja Betonila Oy Verfahren zum Herstellen von Säulen aus Beton
DE4436148C1 (de) * 1994-10-11 1996-07-04 Keller Gmbh Verfahren und Vorrichtung zum seitlichen Planieren von Ziegelformlingen und/oder Ziegeln
DE29613831U1 (de) * 1996-08-09 1996-09-19 Wasmer Paul Vorrichtung zum beidseitigen Beschleifen mit einer Ausrichtvorrichtung
EP1266734A2 (de) * 2001-06-11 2002-12-18 Venix S.r.l. Verfahren und Vorrichtung zum Herstellen von Fliesen, insbesondere von venezianischen Bodenfliesen und dergleichen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106564126A (zh) * 2016-11-07 2017-04-19 南阳市天和机械有限公司 搓面单元、搓面装置及自动化搓面机
CN111844400A (zh) * 2020-08-04 2020-10-30 安庆米锐智能科技有限公司 一种装配式混凝土预制墙体制作加工机械及加工工艺

Also Published As

Publication number Publication date
FR2885834B1 (fr) 2008-10-24
FR2885834A1 (fr) 2006-11-24

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