WO2001069337A2 - Appareil destine a travailler des elements profiles et procede connexe - Google Patents

Appareil destine a travailler des elements profiles et procede connexe Download PDF

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Publication number
WO2001069337A2
WO2001069337A2 PCT/IB2001/000386 IB0100386W WO0169337A2 WO 2001069337 A2 WO2001069337 A2 WO 2001069337A2 IB 0100386 W IB0100386 W IB 0100386W WO 0169337 A2 WO0169337 A2 WO 0169337A2
Authority
WO
WIPO (PCT)
Prior art keywords
machine according
tool
along
axis
semi
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.)
Ceased
Application number
PCT/IB2001/000386
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English (en)
Other versions
WO2001069337A3 (fr
Inventor
Andrea Caiumi
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.)
Emmegi SpA
Original Assignee
Emmegi SpA
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 Emmegi SpA filed Critical Emmegi SpA
Priority to AU39471/01A priority Critical patent/AU3947101A/en
Publication of WO2001069337A2 publication Critical patent/WO2001069337A2/fr
Publication of WO2001069337A3 publication Critical patent/WO2001069337A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/60—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B23Q1/62—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides
    • B23Q1/621—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair
    • B23Q1/626—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair followed perpendicularly by a single sliding pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/003—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for drilling elongated pieces, e.g. beams
    • B23B41/006—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for drilling elongated pieces, e.g. beams the machining device being moved along a fixed workpiece

Definitions

  • the invention relates to a machine and a method for working elongated elements, particularly wooden rods and profiled elements made of metallic, or plastic, or composite material, for example used for producing door and window frames, or for general structural elements-
  • Prior art comprises pantograph-type machine tools wherein a profiled element to be worked is kept in a working position on a machine bed by a plurality of fixing clamps which can be positioned on said machine bed at longitudinally consecutive cross sections of the machine bed.
  • the pantograph-type machine tools comprise a tool, usually a milling cutter, rotating around its longitudinal axis and arranged in a vertical position.
  • the tool is positioned in a vertical direction and along two directions in a horizontal plane through positioning means manually actuated by the operator.
  • positioning means comprises an articulated quadrilateral carrying the tool at one of its vertices and supporting, at a further vertex, a pointed tracer which is forced to slide inside a template whose profile corresponds to the working profile that has to be machined on the profiled element: when the tracer is forced to slide along the template profile, that profile is copied by the tool path and so reproduced on the profiled element being worked.
  • Dimensions of the working profile can be equal to those of template, or different from them, i.e. varied by a reduction ratio with respect to the template profile dimensions, which is obtained by varying pointed tracer dimensions or tool diameter.
  • the operator vertically actuates the spindle carrying the tool with an arm of his, controlling the spindle upstroke and down-stroke, and drives the tracing tip with the other arm by keeping said tracing tip in contact with the template inner edge, thus controlling tool motion in the horizontal plane.
  • a first drawback of pantographs consists in a really short stroke, often roughly of some hundred of millimetres, along the axes defining the horizontal plane, which implies - for profiled elements having a greater extension - that a profiled element has to be positioned more times in order to carry out a complete working, with consequent waste of time.
  • pantographs Another drawback of pantographs is that the achievement of accurate working only depends on the operator skill and care.
  • pantographs consists in difficulties in carrying out complex workings since, first of all, a suitable template needs to be prepared, and, secondly, if the template has a complex profile the operator may meet difficulties in reproducing it.
  • pantograph-type machine tools consists in that, since rough reference systems are used, an equal set of workings can be hardly reproduced on consecutive pieces .
  • a machine for working semi-worked pieces, in particular elongated semi-worked pieces, comprising machine bed means suitable for receiving said semi-worked pieces, blocking means suitable for blocking said semi-worked pieces on said machine bed means and tool means movable along three . mutually perpendicular axes, characterized in that it further comprises an automatic control device suitable for controlling the movement of said tool means along a first and a second axis of said three axes and manually controlled actuating means for moving said tool means along a third axis of said three axes.
  • a method for working a semi-worked piece, in particular an elongated semi-worked piece, using tool means movable along three mutually perpendicular axes comprising positioning said tool means with respect to said semi-worked piece by displacing said tool means along a first and a second axis of said three axes, translating said tool means along a third axis of said three axes in order to bring said tool means in contact with said semi-worked piece, actuating said tool means and moving said tool means along said first and said second axis for carrying out a working on said semi-worked piece, characterized in that said positioning and said moving are performed through an automatic- control device and said translating is performed through manual control means.
  • Figure 1 is a perspective view of a machine for working profiled elements according to the invention
  • Figure 2 is an enlarged and broken view of the machine of
  • Figure 1 highlighting its tool means in a working position
  • Figure 3 is a view like Figure 2, but regarding a raised, stand-by position of the tool means
  • Figure 4 is a perspective front view of another version of the machine according to the invention.
  • Figure 5 is a detail of Figure 4.
  • Figure 6 is perspective, side view of the machine of Figure 4.
  • Figure 7 is a perspective view of the control means of the machine of Figure 4, shown in a first position corresponding to a stand-by position of the tool means;
  • Figure 8 is a view like Figure 7 highlighting the control means in a second position corresponding to a working position of the tool means;
  • Figure 9 is a perspective view of a version of the machine according to the invention wherein the tool means is associated with swivel cutter head means;
  • Figure 10 is a perspective, broken view of a machine according to the invention highlighting the automatic control device.
  • a machine 1 comprising a machine bed 2 provided with a plurality of clamp means 3 suitable for blocking a profiled element 4 to be worked; the clamp means 3 can be longitudinally positioned in a cantilever arrangement on a pair of parallel positioning guides 3a fixed to a vertical wall 3b of the machine bed 2.
  • a first pair of longitudinal working guides- 5 is fixed to the machine bed 2, said working guides 5 being fixed to a horizontal wall 5a of the machine bed 2.
  • Trolley means 6 can move along the longitudinal working guides 5 through first sliders 5b, and supports a working head 7 of the machine 1 through second sliders 8a, engaged with a second pair of transversal working guides 8, said second pair being oriented in a perpendicular direction with respect to the direction identified by the first pair of longitudinal guides 5.
  • Movement of the working head 7, and consequently of the tool 9 connected thereto, in the two mutually perpendicular direction now identified, is controlled by an automatic control device 31 ( Figure 4), managed by a computer.
  • the working head 7 is provided with a third pair of working guides 10 allowing slide means 30 to be vertically translated; a tool 9 is fixed to said slide means 30, said tool 9 being actuated by a respective spindle 20 coupled with an electric motor which rotates the tool 9 around its longitudinal axis.
  • the tool 9 is for example a milling cutter with a rotation axis parallel to said third pair of guides 10.
  • the displacement along a vertical direction of slide means 30 is not carried out by the automatic control device 31, but is manually performed by an operator as it will be below described more in detail.
  • handle means 11A and 11B are shown suitable for allowing the tool 9 to be vertically actuated; in particular, the handle means 11B is connected to an actuating arm 12 coupled, at its end opposite to the handle means 11B, with the head 7 through first hinge means 22 and further coupled, in an intermediate region, with the framework of the spindle 20 through second hinge means 21: thus the handle means 11B are movable between a raised stand-by position and a lowered working position.
  • the handle means 11A is connected with guarding means 15 provided with a window 16 made of transparent material suitable for allowing the operator to control the working progress; said handle means 11A is connected with a protruding portion 23 of the head 7 together with the guarding means 15 by a system of levers 24 defining an articulated parallelogram: thus the handle means 11A and the respective guarding means 15 are movable between a raised stand-by position and a lowered working position.
  • the handle means 11A and 11B are provided with respective control levers 14A and 14B, by acting on which an enable signal is produced; said signal is sent to the automatic control device 31 in order to enable the tool 9 to be rotated and the head 7 to be moved in the horizontal plane defined by the pairs of working guides 5 and 8. Since the enable signal is sent only when the control levers 14A and 14B are simultaneously pressed, they also act as a safety device suitable for protecting the operator from possible accidents.
  • the handle means 11A and 11B further comprises respective push-button means 13A and 13B by acting on which some working cycle operations can be managed as explained below.
  • a profiled element 4 is positioned on the machine bed 2 with the aid of not shown stop means and blocked thereto through the clamps 3.
  • the required workings are established . through the automatic control device 31, by defining their shape and position on the profiled element 4.
  • the automatic control device 31 places the working head 7 in the point where the first working has to be carried out and controls the start of tool 9.
  • the operator then manually actuates the down-stroke of tool 9 by lowering the lever system 24 and the lever 12 until the lowered position of working start is reached and, by pressing one of the push-button means 13A, 13B, for example the pushbutton means 13B, causes the vertical sliding of the tool 9 to be blocked and the first step of the working cycle to be started by the automatic control device 31.
  • the automatic control device 31 enables the slide means 30 to be vertically slid.
  • the operator drives the tool 9 to the required vertical position and causes the slide means 30 to be blocked and the working step to be started, by acting on the pushbutton means 13B.
  • the operator acting on the push-button means 13A, causes the automatic control device 31 to start said subsequent working step by positioning the tool means 9 in a new position on said horizontal plane.
  • a motor 32 is associated with the slide means 30, said motor 32 controlling said slide means 30 to be vertically translated along the third pair of working guides 10.
  • the machine 1 further comprises manually actuated control means 33 arranged for controlling the motor 32 allowing the vertical position of the tool 9 to be changed.
  • the control means 33 comprises reference means 34 suitable for being detected by convenient detecting means 35 associated thereto.
  • the reference means 34 comprises magnetic strip means 36 fixed to support means 37, having a circular sector shape, which are firmly connected to the handle means 11B, through a pin 29.
  • Said magnetic strip means 36 comprises a plurality of permanent magnets distributed along said strip, at pre- established positions.
  • the detecting means 35 comprises a head 38 suitable for detecting the presence of permanent magnets associated with the magnetic strip means 36.
  • control means 33 of a magnetic type control means 33 of an optical or mechanical type may be used.
  • the detecting means 35 comprises a laser beam suitable for detecting bar code means with which the reference means 34 is provided.
  • the reference means 35 comprises a mechanical tracer capable of interacting with suitable protrusions, or cavities, made on the reference means 34.
  • the slide means 30 is not manually actuated by the operator, but it is actuated by the motor 32, the risks of damaging portions of profiled element 4 which do not require to be drilled are strongly reduced.
  • the machine 1 further comprises a position sensor which measures the height of tool 9 and informs the operator of it.
  • control device 31 detects that the vertical height of tool 9 has not significantly changed although the operator is rotating the handle means, which means that the tool means 9 are stumbling over the profiled element 4, said device stops the rotation of spindle 20, in order to prevent damages of the tool 9.
  • the control means 33 further comprises brake means 39 arranged for stopping the rotation of support means 37 and consequently the vertical sliding of tool 9.
  • the brake means 39 comprises an actuator 40 controlling a brake shoe, not shown, which clamps the support means 37 preventing any further movement thereof.
  • the automatic control device 31 places the working head 7 in the position of the profiled element 4, previously positioned on the machine bed 2, in which the first working has to be carried out and controls the tool 9 start.
  • the handle means 11B grasps the handle means 11B and rotates it, causing the tool 9 to be lowered and the profiled element 4 to be drilled.
  • the handle means 11B are rotated until the tool reaches the desired height, indicated to the operator by the position sensor.
  • the operator then acts - on the brake means 39 preventing further vertical translations of the slide means 30.
  • Working is then completed ' as previously described.
  • the control device 31 allows the machine to work in a self- learning mode: if a certain number of profiled elements with the same workings has to be produced, as it often practically happens, the first piece will be machined with manual control by the operator, whereas the remaining pieces will be worked in a completely automatic manner.
  • control device 31 will store, for every working carried out, the vertical height at which the operator has stopped the down- stroke of tool 9 and will use it in the next cycles . This greatly simplifies the use of machine 1 and enables even unskilled operators, who would not be able to program a totally automatic cycle, to use said machine.
  • swivel cutter head means 41 can be associated with the spindle 20, said swivel cutter head means 41 being arranged for orienting the tool 9 in a desired direction.
  • the swivel cutter head means 41 it is possible to carry out workings not only on the upper face of the profiled element 4, or on portions thereof arranged substantially, parallel to the machine bed 2, but also on side faces and ends of the profiled element 4, i.e. on the so- called "heads" whose machining is impossible with the prior art machines .
  • swivel cutter head means 41 can be associated with the possibility of switching the manually controlled axis of the machine 1.
  • the control means 33 By acting- on the control device 31 it is actually possible to cause the control means 33 to send the signal not to the motor 32, but to the actuating means controlling the translation of the trolley means 6 along the first pair of guides 5, or the translation of the head 7 along the second pair of guides 8, thus controlling the displacements in the horizontal plane.
  • control device 31 is connected to the machine bed 2 through a oscillating arm 42 movable between the operating position of Figure 10 and a stand-by position, not shown, wherein the control device 31 is kept inside the profile of the machine 1, thus limiting its overall dimensions and drastically reducing its transport costs.
  • the oscillating arm 42 is provided with an appendix, not shown, housed inside one of the uprights 43 of the machine 1 and rotatably coupled with it.
  • the arm 42 For switching from the operating position to the stand-by position, the arm 42 is partially raised in a vertical direction, so that it does not interfere with the machine bed 2, and is then rotated according to the arrow F so as to bring the control device inside the machine 1 overall dimensions.
  • the motor 32 is a stepping motor
  • the control means 33 comprises adjusting devices for adjusting said stepping motor, for example rheostat means, or joystick means, manually actuatable by an operator for controlling the translation of the slide means 30.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Numerical Control (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Abstract

L'invention concerne une machine (1) destinée à travailler des pièces semi-ouvrées (4), en particulier des pièces semi-ouvrées allongées. Cette machine (1) comprend un bâti (2) conçu pour recevoir des pièces semi-ouvrées (4), un dispositif de blocage (3) conçu pour bloquer ces pièces (4) sur le bâti (2), un outil (9) mobile le long de trois axes mutuellement perpendiculaires, un dispositif de commande automatique (31) conçu pour commander le mouvement dudit outil (9) le long d'un premier et d'un second axe des trois axes et un dispositif de manoeuvre à commande manuelle (11B, 12, 32, 33) destiné à déplacer ledit outil (9) le long du troisième axe. L'invention concerne également un procédé destiné à travailler une pièce semi-ouvrée (4), en particulier une pièce semi-ouvrée allongée, utilisant un outil (9) mobile le long de trois axes mutuellement perpendiculaires. Ce procédé consiste à positionner l'outil (9) par rapport à la pièce semi-ouvrée par déplacement de l'outil (9) le long du premier et du second axe des trois axes, à déplacer l'outil (9) par translation le long du troisième axe afin de l'amener en contact avec la pièce semi-ouvrée (4), à manipuler l'outil (9) et à le déplacer le long du premier et du second axe afin d'effectuer le travail sur la pièce semi-ouvrée (4). Le positionnement et le déplacement de l'outil (9) sont effectués à l'aide d'un dispositif de commande automatique (31) et le mouvement de translation est effectué à l'aide d'un dispositif de commande manuel (11B, 12, 32, 33).
PCT/IB2001/000386 2000-03-15 2001-03-15 Appareil destine a travailler des elements profiles et procede connexe Ceased WO2001069337A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU39471/01A AU3947101A (en) 2000-03-15 2001-03-15 Apparatus for working profiled elements and relative method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000MO000045 IT1315615B1 (it) 2000-03-15 2000-03-15 Macchina per la lavorazione di profilati e relativo metodo.
ITMO2000A000045 2000-03-15

Publications (2)

Publication Number Publication Date
WO2001069337A2 true WO2001069337A2 (fr) 2001-09-20
WO2001069337A3 WO2001069337A3 (fr) 2001-12-06

Family

ID=11450399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000386 Ceased WO2001069337A2 (fr) 2000-03-15 2001-03-15 Appareil destine a travailler des elements profiles et procede connexe

Country Status (3)

Country Link
AU (1) AU3947101A (fr)
IT (1) IT1315615B1 (fr)
WO (1) WO2001069337A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1679150A1 (fr) * 2005-01-05 2006-07-12 Creametal Dispositif pour le perçage des pièces allongées

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354832A1 (fr) * 1976-06-17 1978-01-13 Molnar Gyula Poinconneuse-grignoteuse
GB2136359B (en) * 1983-03-12 1986-02-05 Jordan & Sons Limited Engraving machines
DE3412576C1 (de) * 1984-04-04 1985-10-10 Eugen Lutz GmbH u. Co Maschinenfabrik, 7130 Mühlacker Fraes-Bohrvorrichtung
US4715108A (en) * 1985-03-07 1987-12-29 Toshiba Kikai Kabushiki Kaisha Machine tool capable of changing worn cutting tools, such as small diameter drills, with new ones
DE9315813U1 (de) * 1993-10-18 1993-12-16 Droop & Rein GmbH & Co. i.K, 40213 Düsseldorf Langbettmaschine zur Bearbeitung von Profilen
DE29803098U1 (de) * 1998-02-25 1998-04-16 Knauth Andreas Vorrichtung zum Bohren von Platinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1679150A1 (fr) * 2005-01-05 2006-07-12 Creametal Dispositif pour le perçage des pièces allongées

Also Published As

Publication number Publication date
AU3947101A (en) 2001-09-24
ITMO20000045A1 (it) 2001-09-15
IT1315615B1 (it) 2003-03-14
WO2001069337A3 (fr) 2001-12-06

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