FR2646369A1 - Suction-type sheet holding appliance for machines for milling materials - Google Patents
Suction-type sheet holding appliance for machines for milling materials Download PDFInfo
- Publication number
- FR2646369A1 FR2646369A1 FR8905045A FR8905045A FR2646369A1 FR 2646369 A1 FR2646369 A1 FR 2646369A1 FR 8905045 A FR8905045 A FR 8905045A FR 8905045 A FR8905045 A FR 8905045A FR 2646369 A1 FR2646369 A1 FR 2646369A1
- Authority
- FR
- France
- Prior art keywords
- milling
- suction
- sheet holding
- type sheet
- machines
- 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
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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
Abstract
Description
La présente invention décrit un dispositif de presse-flan destiné aux machines a fraiser les matériaux en feuilles.The present invention describes a blank press device intended for machines for milling sheet materials.
L'organe principal des machines a fraiser les matériaux est la tete de fraisage. Celle-ci a pour fonctions a) l'entraînement et la rotation de l'outil de fraisage.The main component of material milling machines is the milling head. Its functions are a) the drive and rotation of the milling tool.
b) d'assurer la descente de ltoutil dans la matière.b) ensuring the lowering of the tool in the material.
La matière a usiner est habituellement placée sur une table située sous la' tete de fraisage, cette dernière et la table pouvant se déplacer l'une par rapport a l'autre selon les deux axes du plan horizontal.The material to be machined is usually placed on a table located under the milling head, the latter and the table being able to move relative to each other along the two axes of the horizontal plane.
La descente de l'outil, qui conditionne la profondeur du fraisage se règle habituellement par rapport au plan de la table. Cette méthode donne de bons résultats lorsque l'on travaille sur des matériaux denses ou épais ( métal, bois, etc...)*
En revanche, sur des feuilles de matériaux minces et de grandes dimensions, il est difficile d'obtenir une bonne précision sur la profondeur du fraisage par ce procédé.The lowering of the tool, which conditions the depth of the milling, is usually adjusted in relation to the table plane. This method gives good results when working on dense or thick materials (metal, wood, etc ...) *
On the other hand, on sheets of thin and large materials, it is difficult to obtain good accuracy on the depth of milling by this process.
Cela tient à deux causes - manque de parallélisme entre la table et la plaque de
matière a usiner qui a tendance a flotter aux endroits
non bridés et plus particulièrement vers le centre.This is due to two causes - lack of parallelism between the table and the plate
material to be machined which tends to float in places
not restrained and more particularly towards the center.
- irrégularité dans l'épaisseur des plaques de matière
sur toute l'étendue de leur surface.- irregularity in the thickness of the material plates
over the whole extent of their surface.
Dans ces conditions, la cote de profondeur de fraisage n'est plus respectée et les écarts peuvent atteindre plusieurs dixièmes, voire un demi-millimèttre, ce qui est inacceptable. Under these conditions, the milling depth dimension is no longer respected and the deviations can reach several tenths, even half a millimeter, which is unacceptable.
Le procédé objet de la présente invention nécessite une bonne précision uniquement entre la tete de fraisage, qui est de faible surface, et l'outil d'usinage luimeme. Il consiste a faire plaquer la matière contre la tete de fraisage à l'endroit à usiner a l'aide d'un sys terme de succion pneumatique. On peut alors régler la course de descente de l'outil par rapport a la tete de fraisage elle-même et non plus par rapport à la table qui supporte la matière à usiner. Cette dernière se trouvant plaquée contre la tete de fraisage au moment et a l'endroit de l'usinage, la profondeur de la descente de l'outil sera toujours respectée ( fig. 1 ).The process which is the subject of the present invention requires good precision only between the milling head, which is of small area, and the machining tool itself. It consists of pressing the material against the milling head at the place to be machined using a pneumatic suction system. We can then adjust the lowering stroke of the tool relative to the milling head itself and no longer relative to the table which supports the material to be machined. The latter being pressed against the milling head at the time and at the place of machining, the depth of the lowering of the tool will always be respected (fig. 1).
Dans la pratique, le dispositif objet de la présente invention se compose d'une couronne percée de trous reliés à un tube qui sera lui-mème raccordé à une pompe à vide.In practice, the device which is the subject of the present invention consists of a crown pierced with holes connected to a tube which will itself be connected to a vacuum pump.
Cette couronne vient se fixer sous la tete de fraisage, ses dimensions étant prévues pour laisser libre passage a l'outil de fraisage. L'ensemble est réglé de fanon a ce que la distance entre la couronne d'aspiration et la feuille de matière a usiner soit assez faible pour permettre une succion correcte de la matière au passage de la tete. On a ainsi,en tout point de la feuille, l'assurance du respect de la cote de profondeur de l'outil de fraisage. Il peut être également prévu une aspiration séparée destinée à évacuer les copeaux de fraisage(fig. 2). This crown is fixed under the milling head, its dimensions being provided to allow free passage to the milling tool. The assembly is adjusted so that the distance between the suction crown and the sheet of material to be machined is small enough to allow proper suction of the material when passing the head. There is thus, at every point of the sheet, the assurance of compliance with the depth dimension of the milling tool. A separate suction can also be provided to evacuate the milling chips (fig. 2).
Un avantage supplémentaire de ce dispositif réside dans le fait qu'un bridage rigoure-;x de la feuille de matière à usiner n'est plus nécessaire. Un simple calage selon les deux axes du plan suffit. An additional advantage of this device lies in the fact that a rigorous clamping of the sheet of material to be machined is no longer necessary. A simple setting along the two axes of the plane is sufficient.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8905045A FR2646369A1 (en) | 1989-04-17 | 1989-04-17 | Suction-type sheet holding appliance for machines for milling materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8905045A FR2646369A1 (en) | 1989-04-17 | 1989-04-17 | Suction-type sheet holding appliance for machines for milling materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2646369A1 true FR2646369A1 (en) | 1990-11-02 |
Family
ID=9380792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8905045A Pending FR2646369A1 (en) | 1989-04-17 | 1989-04-17 | Suction-type sheet holding appliance for machines for milling materials |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2646369A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605421A (en) * | 1994-04-28 | 1997-02-25 | Black & Decker Incorporated | Dust extractor |
| EP0820362A1 (en) * | 1995-04-13 | 1998-01-28 | Gregory M. Tillemans | Dust-free hole cutting method and apparatus |
| CN105773258A (en) * | 2016-04-20 | 2016-07-20 | 中山市北村机械设备有限公司 | Numerically-controlled lathe with vacuum suction disc |
| CN106514358A (en) * | 2016-12-29 | 2017-03-22 | 重庆市铜梁区宁基五金销售有限公司 | Clamp for circular shaft hole drilling |
-
1989
- 1989-04-17 FR FR8905045A patent/FR2646369A1/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605421A (en) * | 1994-04-28 | 1997-02-25 | Black & Decker Incorporated | Dust extractor |
| EP0820362A1 (en) * | 1995-04-13 | 1998-01-28 | Gregory M. Tillemans | Dust-free hole cutting method and apparatus |
| EP0820362A4 (en) * | 1995-04-13 | 1998-09-02 | Gregory M Tillemans | Dust-free hole cutting method and apparatus |
| CN105773258A (en) * | 2016-04-20 | 2016-07-20 | 中山市北村机械设备有限公司 | Numerically-controlled lathe with vacuum suction disc |
| CN105773258B (en) * | 2016-04-20 | 2018-05-25 | 中山市北村机械设备有限公司 | One kind has vacuum cup numerically controlled lathe |
| CN106514358A (en) * | 2016-12-29 | 2017-03-22 | 重庆市铜梁区宁基五金销售有限公司 | Clamp for circular shaft hole drilling |
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