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WO1992019420A1 - Ponceuse - Google Patents

Ponceuse Download PDF

Info

Publication number
WO1992019420A1
WO1992019420A1 PCT/EP1992/000976 EP9200976W WO9219420A1 WO 1992019420 A1 WO1992019420 A1 WO 1992019420A1 EP 9200976 W EP9200976 W EP 9200976W WO 9219420 A1 WO9219420 A1 WO 9219420A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding
machine according
unit
guide
grinding machine
Prior art date
Application number
PCT/EP1992/000976
Other languages
German (de)
English (en)
Inventor
Fritz Gebhardt
Original Assignee
Homag Maschinenbau Ag
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 Homag Maschinenbau Ag filed Critical Homag Maschinenbau Ag
Priority to DE9218411U priority Critical patent/DE9218411U1/de
Publication of WO1992019420A1 publication Critical patent/WO1992019420A1/fr

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
    • 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
    • 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
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • 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
    • B24B7/28—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 wood

Definitions

  • the invention relates to a grinding machine for machining workpieces made of wood and wood-based materials.
  • long belt sanding machines in which an endlessly rotating sanding belt is stretched horizontally between two deflection rollers, it is known to have a work table for holding a large workpiece, for example a cabinet wall, which can be moved horizontally under the belt transversely to the belt running direction to be arranged and additionally to press a grinding shoe which can be pushed back and forth between the upper and lower run along the grinding belt together with the lower run against the workpiece on the work table.
  • the long belt sanding machines are particularly suitable for the surface sanding of door leaves, cabinet parts, table tops and the like.
  • long belt grinding machines are less suitable for grinding elongated, narrow workpieces, such as strips, in particular profile strips, since there is a risk that the workpiece will be removed unevenly on the narrow side edges during the grinding process and thus be deformed inadmissibly.
  • a further disadvantage of long belt sanding machines is that the sanding dust which arises in the area of the sanding shoe over the entire length of the sanding belt forms a suction catcher arranged on the end face must be performed.
  • the disadvantages that arise in air pollution control are avoided in known broadband grinding machines.
  • the large-area workpieces are fed via an automatic feed device to a belt grinding station which has a grinding belt that is at least correspondingly wide to the width of the workpiece.
  • the suction power must also be dimensioned relatively high here in order to be able to remove the amounts of sanding dust which occur at the given high sanding power.
  • Broadband sanding machines are also structurally complex and have high belt costs.
  • broadband machines are not suitable for processing narrow parts such as strips for the same reasons as long-belt machines. They are therefore more suitable for special industrial use in rational large-area grinding, but not for the multiple applications in small craft businesses. Proceeding from this, the invention is based on the object of developing a grinding machine for processing wooden workpieces which, with a relatively simple structure, is suitable both for large-area processing and for narrow parts and which ensures reliable extraction of the grinding dust despite low energy consumption.
  • a work table arranged on the machine frame for receiving the workpieces to be machined
  • a grinding unit slidably arranged on the machine frame and equipped with a drive motor
  • a grinding tool arranged in the grinding unit and displaceable against the workpiece
  • a suction device which has a suction catcher in the immediate vicinity of the grinding tool
  • the grinding unit and the work table can be moved relative to one another in at least three pushing and / or swiveling axes, the suction catcher being moved along with the grinding unit.
  • the work table can be displaced in a horizontal table guide on the machine frame, while the grinding unit can be displaceable in a horizontal unit guide on the machine frame that is oriented transversely to the table guide.
  • the grinding unit on the machine frame or the grinding tool in the grinding unit can be moved vertically against the work table or the workpiece.
  • a further advantageous variant of the invention provides that the grinding unit is arranged on a horizontal slide that can be displaced horizontally on the machine frame. Furthermore, the grinding unit can be arranged on a vertical slide that can be displaced vertically on the machine frame or on the horizontal slide, optionally in a direction that is perpendicular to the direction of displacement of the horizontal slide. In order to also be able to carry out edge processing within the grinding machine, the grinding unit is arranged on a support frame, which is optionally displaceable on the machine frame, on the horizontal slide or on the vertical slide, pivotable about a horizontal axis by at least 90 ° and can be lowered onto or below the work table level . For this purpose, the support frame can also be designed as a four-bar linkage.
  • the grinding tool is arranged on a tool carrier, while the grinding unit has a tool holder for releasably fastening the tool carrier.
  • the grinding unit can perform the function of a belt grinding machine if it has a drive roller driven by the drive motor and a tensioning mechanism for a grinding belt and if the grinding tool has a contact shoe that can be moved together with the grinding belt against the workpiece or a corresponding contact roller.
  • the contact shoe can be arranged in the spacing area between two deflection rollers arranged on the tool carrier, the suction catcher being able to be arranged in the immediate vicinity of the rear deflection roller in the direction of belt travel.
  • the tensioning mechanism of the belt sanding unit advantageously has a tensioning roller that can be displaced against the sanding belt, which in the simplest case can also be designed as a drive roller.
  • the grinding tool is also possible to design the grinding tool as a directly or indirectly motor-driven grinding roller or as a brush roller.
  • Profile machining can also be carried out by appropriate surface profiling of the grinding rollers or the contact shoe or the contact roller.
  • a particularly simple handling of the grinding machine according to the invention is made possible by the fact that the The sliding movement of the grinding unit on the one hand and the vertical stroke movement of the grinding tool on the other hand are carried out with a common actuating lever.
  • the operator By moving the work table with the other hand, the operator can carry out the grinding work in an ergonomic two-hand operation.
  • the grinding unit as a whole can be suspended in a height-adjustable manner on a guide slide guided in the unit guide, wherein the grinding unit can be arranged on the guide slide in an elastic manner or height-adjustable under the action of a counterweight.
  • the sanding unit is provided with a moving housing, while the sanding tool, which is preferably arranged in the lower region of the sanding unit, is provided in a preferably removable, possibly with a downward-pointing brush ring Grinding frame can be arranged.
  • a motor-driven feed device for narrow workpieces is arranged on the machine frame in the direction of displacement of the unit guide next to, in front of or under the work table, and is adjustable in height, while the grinding unit in the area of the feed device can be locked against displacement in the unit guide.
  • This enables narrow parts to be ground in one pass.
  • the Completely machined strips are placed on the work table arranged behind the grinding station formed by the locked grinding unit.
  • FIG. 2 shows the grinding machine in a representation corresponding to FIG. 1 with the grinding unit locked over the feed device;
  • Fig. 4 is a side view of the grinding machine
  • 10 is a side view of a belt sanding unit with height adjustment; 11 shows a detail from the grinding tool according to FIG. 10;
  • FIGS. 12a to c show a modified embodiment of a grinding machine with a swiveling grinding unit for edge processing in two side views and a front view with a horizontally and vertically oriented grinding unit;
  • FIG. 13a and b show a further embodiment variant of a grinding machine with a grinding unit which can be displaced in three directions in a diagrammatic representation, a side view and a partial front view.
  • the grinding machine shown in FIGS. 1 to 4, 10 and 11 essentially consists of a machine frame 10, a work table 14 horizontally guided in a pair of guide rods 12 vertically adjustable on the machine frame 10, and one in a pair of guide rods 12 transversely running pair of guide rods 16 horizontally displaceable grinding unit 18 on the machine frame and a feed device 20 arranged vertically adjustable on the frame next to the work table 14.
  • the grinding unit 18 is on a carriage 70 in a vertical guide 72,74 vertically adjustable arranged, in addition a height adjustment mechanism, not shown, with gas or Pneumatic cylinder, spring or counterweight can be provided.
  • the grinding unit 18 is arranged in a box-shaped housing 22, which extends on its underside through a releasably attachable grinding frame 24 with a brush ring 26 to the processing point.
  • a suction device is connected to the housing 22 via an exhaust hose 28, which extends with a suction catcher 30 into the vicinity of the processing point within the grinding unit.
  • the grinding unit 18 shown in FIGS. 1 and 10 is equipped as a belt grinding unit. It has a drive roller 34 which can be driven by an electric geared motor 32, a tensioning roller 36 which can be pivoted against the grinding belt 44, and a grinding tool consisting of two deflection rollers 38, 40 and a contact shoe 42.
  • the grinding belt 44 is indicated in dash-dotted lines in FIGS. 1 and 10.
  • the parts 38, 40, 42 forming the grinding tool are arranged together with an actuating lever 46 and the suction catcher 30 on a tool holder 48, which is attached to an adapted tool holder of the grinding unit 18 by means of centering lugs 51 and screwing or clamping claws 49 with simple manipulations is releasably attached.
  • the tool 38, 40, 42 (FIG. 5) can easily be exchanged for other tools (FIGS. 6 to 8).
  • the tool shown in FIG. 6 is a grinding roller 50 arranged on the tool carrier 48, which is either immediate is driven by its own drive motor or by a belt drive via the motor 42.
  • the tool according to FIG. 7 is a wire brush roller 52, while the tool according to FIG. 8 shows a profiled grinding roller 54. To replace the tools, only the grinding frame 24 has to be removed from the lower part of the grinding unit 18, so that the tool holder for the tool carrier 48 is exposed.
  • the belt grinding tool shown in FIGS. 1, 5, 10 and 11 is expediently used to grind a large-area workpiece clamped on the work table 14.
  • the grinding belt 44 guided over the deflection rollers 38, 40 and driven clockwise in FIG. 1 can be guided against the workpiece surface by pressing the contact shoe 42.
  • the operator actuates the actuating lever 46, which is articulated on the tool holder 48 via the joint 56 and which acts on the contact shoe 42 with a plunger 58 and projects outwards through a slot 60 in the housing 22 of the grinding unit 18.
  • the actuating lever 46 With the actuating lever 46, the grinding unit 18 can also be pushed back and forth along the guide 16.
  • the entire surface of the workpiece can be coated with the grinding unit 18.
  • the handling here is thus similar to that of a long belt grinding machine, except that not only the contact shoe, but also the entire grinding unit 18 including the drive motor 32 and suction collector 30 is slid over the work table 30.
  • the grinding dust arising during the grinding process is thus always collected directly at the point of origin, so that there is no risk of undesired dust escaping.
  • the feed device 20 in the illustrated embodiment has four rollers 66 driven by a motor 64. If a strip 68 is thus inserted into the grinding station between grinding unit 18 and feed device 20, it is gripped by the driven rollers 66 and pulled under the contact shoe 42 with the grinding belt 44 rotating. On the other hand, the machined workpiece 68 is placed on the worktop -14.
  • the work plate 14 thus has the additional function of a storage plate for the workpieces 68 processed in the semi-automatic grinding operation. The grinding dust is extracted in the same way as for large area machining.
  • a horizontally aligned pair of guide rods 16 is arranged in the rear lower part of the machine frame 10, on which a horizontal slide 80 is slidably guided.
  • the Hori- zo ⁇ talschlitten 80 in turn has a vertical pair of guide rods 82 for a vertical slide 84, to which a support frame 86 designed as an articulated parallelogram for the grinding unit 18 is articulated.
  • the vertical slide 84 is arranged on the horizontal slide 80 in a height-adjustable manner via a drive motor 88 and a threaded spindle 90, while the articulated square of the support frame 86 is pivoted relative to the vertical slide 84 with at least one pneumatic cylinder 92 while lifting and lowering the grinding unit 18 is cash.
  • the grinding unit is used for surface processing of a workpiece resting on the work table 14, while in the horizontal alignment of the grinding assembly 18 shown in FIG. 12 a, an edge processing of the on the Work table 14 resting workpiece 94 is possible.
  • the grinding unit 18 can be displaced in three mutually perpendicular directions relative to the fixed work table 14.
  • the horizontal guide rails 16 can either be connected to the work table via a stand or mounted on a wall.
  • the horizontal slide 80 which is horizontally displaceable in the guide rails 16, carries an angular vertical slide 84 which, with its vertical leg 96 in the direction of the arrows 96 ', can be displaced in a vertical guide of the horizontal slide 80 and on the horizontal leg 98 of which the grinding unit 18 in the direction of the double arrow 98 'across the guide rails 16 is horizontally displaceable
  • the invention relates to a grinding machine for processing workpieces made of wood and wood-like materials.
  • the machine has a work table 14 which is displaceably arranged in a horizontal table guide 12 of a machine frame 10, a grinding unit 18 which is arranged displaceably in a horizontal aggregate guide 16 which is oriented transversely to the table guide 12, a grinding tool which is arranged in the grinding unit 18 and is interchangeable and displaceable against the workpiece, and a suction device with a suction catcher 30 reaching within the grinding unit up to the processing point.
  • a feed device 20 for narrow workpieces 68 is arranged on the machine frame 10 next to the work table, approximately at table height, while the grinding unit 18 can be locked in the area of the feed device 20 against displacement in the unit guide 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Une ponceuse pour pièces en bois ou matériau ligneux est pourvue d'une table de travail (14) montée coulissante dans le système de guidage (12) d'un bâti de machine (10), d'une unité de ponçage (18) montée coulissante dans un dispositif de guidage (16) horizontal placé transversalement par rapport au système de guidage (12) de la table de travail, d'un outil de ponçage interchangeable monté dans l'unité de ponçage (18) et pouvant être appliqué contre la pièce en bois, ainsi que d'un dispositif d'aspiration muni d'un collecteur de poussière (30) qui s'étend à l'intérieur de l'unité de ponçage jusqu'à la zone de travail. Un dispositif d'avancement (20) pour des pièces étroites (68) est également monté sur le bâti de la machine (10) à côté de la table de travail, à approximativement la même hauteur que ladite table, et l'unité de ponçage (18) peut être verrouillée dans la zone du dispositif d'avancement (20) pour qu'elle ne puisse pas glisser dans son dispositif de guidage (16).
PCT/EP1992/000976 1991-05-07 1992-05-05 Ponceuse WO1992019420A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9218411U DE9218411U1 (de) 1991-05-07 1992-05-05 Schleifmaschine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4114827 1991-05-07
DEP4114827.4 1991-05-07

Publications (1)

Publication Number Publication Date
WO1992019420A1 true WO1992019420A1 (fr) 1992-11-12

Family

ID=6431126

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/000976 WO1992019420A1 (fr) 1991-05-07 1992-05-05 Ponceuse

Country Status (2)

Country Link
EP (1) EP0584193A1 (fr)
WO (1) WO1992019420A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201358A3 (fr) * 2000-10-26 2004-01-02 Makor S.r.l. Machine de ponçage
CN117300783A (zh) * 2023-10-30 2023-12-29 马鞍山晶宇能源科技股份有限公司 一种光伏面板沿边磨削装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889429A (en) * 1973-11-01 1975-06-17 Kimwood Corp Residue removal system for belt abrader
US4628641A (en) * 1984-04-06 1986-12-16 Mini Max S.R.L. Belt sander with reducible overall dimension features
US4720940A (en) * 1985-09-23 1988-01-26 Green Gary L Rotary drum sander

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889429A (en) * 1973-11-01 1975-06-17 Kimwood Corp Residue removal system for belt abrader
US4628641A (en) * 1984-04-06 1986-12-16 Mini Max S.R.L. Belt sander with reducible overall dimension features
US4720940A (en) * 1985-09-23 1988-01-26 Green Gary L Rotary drum sander

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201358A3 (fr) * 2000-10-26 2004-01-02 Makor S.r.l. Machine de ponçage
CN117300783A (zh) * 2023-10-30 2023-12-29 马鞍山晶宇能源科技股份有限公司 一种光伏面板沿边磨削装置

Also Published As

Publication number Publication date
EP0584193A1 (fr) 1994-03-02

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