CH667839A5 - Vacuum tool for picking up small objects - includes vacuum pipe with spring lever over vacuum orifice to remove object when released - Google Patents

Vacuum tool for picking up small objects - includes vacuum pipe with spring lever over vacuum orifice to remove object when released Download PDF

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Publication number
CH667839A5
CH667839A5 CH105386A CH105386A CH667839A5 CH 667839 A5 CH667839 A5 CH 667839A5 CH 105386 A CH105386 A CH 105386A CH 105386 A CH105386 A CH 105386A CH 667839 A5 CH667839 A5 CH 667839A5
Authority
CH
Switzerland
Prior art keywords
vacuum
orifice
arm
tool
released
Prior art date
Application number
CH105386A
Other languages
French (fr)
Inventor
Paul-Andre Audemars
Original Assignee
Paul Andre Audemars
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 Paul Andre Audemars filed Critical Paul Andre Audemars
Priority to CH105386A priority Critical patent/CH667839A5/en
Publication of CH667839A5 publication Critical patent/CH667839A5/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/683Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
    • H01L21/6838Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping with gripping and holding devices using a vacuum; Bernoulli devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B9/00Hand-held gripping tools other than those covered by group B25B7/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B9/00Hand-held gripping tools other than those covered by group B25B7/00
    • B25B9/02Hand-held gripping tools other than those covered by group B25B7/00 without sliding or pivotal connections, e.g. tweezers, onepiece tongs
    • GPHYSICS
    • G04HOROLOGY
    • G04DAPPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00Gripping, holding, or supporting devices
    • G04D1/02Tweezers; Vice clamps or other special hand tools for watchmakers
    • G04D1/028Hand tools for gripping or holding by pneumatic means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manipulator (AREA)

Abstract

The tool which is used like a pair of tweezers includes a tubular element (1), and a flexible arm (4) of similar length attached to the element at one end. The tube has one end connected to a vacuum pump, and has a small orifice (2) in the side of the other end. The arm also has a matching orifice, so that when the arm is squeezed against the tube, the orifices line up and an object may be picked up using the suction effect. To release the object the arm is released, pushing the object away from the vacuum pipe. ADVANTAGE - Handling small objects without need for valve in vacuum pipe line.

Description

       

  
 



   DESCRIPTION



   Il existe depuis longtemps, et notamment dans certaines machines-outils, des dispositifs permettant de saisir des pièces par aspiration et de les lâcher après les avoir déplacées. De tels dispositifs présentent en général un bras pourvu d'un conduit d'aspiration, luimême branché sur une pompe. Lorsque la bouche d'aspiration s'approche de la pièce à saisir, celle-ci est happée et plaquée contre la bouche. Le bras bouge ensuite, et lâche la pièce après l'avoir déplacée. Le lâchage de la pièce se fait grâce à une vanne qui interrompt l'aspiration et réinjecte de l'air afin de supprimer tout effet de ventouse.



   Le désavantage de cette solution classique réside, tout d'abord, dans la nécessité de la présence d'une vanne. Un tel élément prend en effet un certain volume, ce qui interdit de le placer près de la bouche d'aspiration dans les cas   mi    il est nécessaire que le bout de l'outil ait une forme effilée. Par exemple, dans le montage de circuits électroniques, il est souvent nécessaire de placer des pièces minuscules dans des enfoncements. En outre, il est souvent indispensable de travailler à la main. Or, un outil destiné à être saisi à la main ne doit pas avoir une grande épaisseur. Il est vrai qu'il est possible de placer la vanne en amont, de façon à dégager l'extrémité de l'outil qui porte la bouche d'aspiration.

  Cependant, c'est dans ce cas qu'apparaît le second inconvénient lié à l'utilisation d'une vanne: la distance entre la vanne et la bouche étant plus grande, le volume du conduit d'aspiration qu'il faudra remplir d'air pour lâcher la pièce sera plus grand, de sorte qu'un temps plus long s'écoulera entre le moment du signal de lâchage donné au dispositif et le moment du lâchage effectif de la pièce. Enfin, la présence d'une vanne complique le dispositif
 Les fins travaux à la main se font donc, en général, au moyen de classiques brucelles, plutôt qu'au moyen d'outil à aspiration. Il est toutefois difficile avec des brucelles de saisir des pièces dans toutes les situations. Par exemple, il est malaisé de saisir une pièce de faible épaisseur qui se trouve sur une surface plane, ou de prendre une pièce au fond d'un trou.



   La présente invention vise à remédier à de tels défauts en fournissant un outil de préhension par aspiration qui n'exige pas la présence d'une vanne, qui supprime l'obligation de réinjecter de l'air pour lâcher la pièce transportée, qui permette un lâchage immédiat, qui puisse être utilisé au besoin à la main et qui soit assez fin pour poser ou saisir des pièces dans des enfoncements.



   L'invention est définie dans les revendications 1 et 4 à 6.



   Le dessin montre, à titre d'exemple, une forme d'exécution de l'invention, à savoir un outil en coupe longitudinale.



   L'outil a la forme d'une paire de brucelles, formée d'un élément   1    et d'un bras 4. L'élément   1    présente une bouche 2 à laquelle aboutit un conduit d'aspiration 3. Le conduit est branché sur une pompe à vide qui n'est pas représentée ici. Le bras 4, qui est symétrique à l'élément 1, et qui est lié à celui-ci par une extrémité, présente à son autre extrémité un orifice S qui fait face à la bouche. L'élément   1    et le bras 4 sont faits d'un matériau élastique, de sorte qu'ils forment un ressort. Dans la position de repos de l'outil, tel qu'il est représenté dans le dessin, l'élément   1    et le bras 4 sont écartés l'un de l'autre.



   Pour saisir un objet, il suffit de presser l'élément 1 contre le bras 4, de façon que l'orifice vienne se plaquer sur la bouche, et d'appliquer cet orifice sur l'objet. Dans cette position, l'orifice continue la bouche. L'objet est happé et vient se coller contre l'orifice.



  Pour le déposer, il suffit de relâcher le bras 4, qui s'écarte alors de l'élément 1. L'orifice s'éloigne de la bouche. L'air peut alors entrer directement dans la bouche, sans passer par l'orifice. L'objet n'est plus soumis à une aspiration et se détache de l'orifice.   Il    n'est pas nécessaire d'interrompre l'aspiration. La présence d'une vanne est donc superflue.



   Utile principalement dans les travaux faits à la main, l'invention peut également être insérée dans une machine automatique. 



  
 



   DESCRIPTION



   There have long been, and in particular in certain machine tools, devices enabling parts to be gripped by suction and released after having moved them. Such devices generally have an arm provided with a suction duct, itself connected to a pump. When the suction mouth approaches the part to be gripped, it is caught and pressed against the mouth. The arm then moves, and releases the part after having moved it. The part is released using a valve which interrupts the suction and re-injects air in order to eliminate any suction cup effect.



   The disadvantage of this conventional solution lies, first of all, in the need for the presence of a valve. Such an element indeed takes a certain volume, which prohibits placing it near the suction mouth in cases mi it is necessary that the tip of the tool has a tapered shape. For example, in the assembly of electronic circuits, it is often necessary to place tiny parts in recesses. In addition, it is often essential to work by hand. However, a tool intended to be gripped by hand must not have a large thickness. It is true that it is possible to place the valve upstream, so as to clear the end of the tool which carries the suction mouth.

  However, it is in this case that the second drawback related to the use of a valve appears: the distance between the valve and the mouth being greater, the volume of the suction duct which will have to be filled with the air for releasing the part will be greater, so that a longer time will elapse between the moment of the release signal given to the device and the moment of the effective release of the part. Finally, the presence of a valve complicates the device
 Fine work by hand is therefore generally done using conventional tweezers, rather than using a vacuum tool. However, it is difficult with tweezers to grasp parts in all situations. For example, it is difficult to grab a thin piece that is on a flat surface, or to grab a piece at the bottom of a hole.



   The present invention aims to remedy such defects by providing a suction gripping tool which does not require the presence of a valve, which eliminates the obligation to re-inject air to release the transported part, which allows a immediate release, which can be used if necessary by hand and which is fine enough to place or grasp parts in recesses.



   The invention is defined in claims 1 and 4 to 6.



   The drawing shows, by way of example, an embodiment of the invention, namely a tool in longitudinal section.



   The tool has the shape of a pair of tweezers, formed by an element 1 and an arm 4. The element 1 has a mouth 2 to which a suction duct 3 terminates. The duct is connected to a vacuum pump which is not shown here. The arm 4, which is symmetrical to the element 1, and which is linked to the latter by one end, has at its other end an orifice S which faces the mouth. The element 1 and the arm 4 are made of an elastic material, so that they form a spring. In the rest position of the tool, as shown in the drawing, the element 1 and the arm 4 are separated from one another.



   To grasp an object, it suffices to press the element 1 against the arm 4, so that the orifice is pressed against the mouth, and to apply this orifice to the object. In this position, the orifice continues the mouth. The object is caught and sticks against the orifice.



  To deposit it, simply release the arm 4, which then departs from the element 1. The orifice moves away from the mouth. The air can then enter directly into the mouth, without passing through the orifice. The object is no longer subjected to aspiration and detaches from the orifice. It is not necessary to interrupt the suction. The presence of a valve is therefore superfluous.



   Useful mainly in handmade work, the invention can also be inserted in an automatic machine.


    

Claims (6)

REVENDICATIONS 1. Outil de préhension par aspiration comprenant au moins un élément (1) qui présente au moins une bouche (2) et un conduit d'aspiration (3), caractérisé en ce qu'il comprend au moins un bras (4) pourvu d'au moins un orifice (5), ledit bras et ledit élément étant aptes à être mus l'un par rapport à l'autre de façon que ledit orifice soit plaqué contre ladite bouche ou en soit écarté.  CLAIMS    1. Suction gripping tool comprising at least one element (1) which has at least one mouth (2) and a suction duct (3), characterized in that it comprises at least one arm (4) provided with 'at least one orifice (5), said arm and said element being able to be moved relative to each other so that said orifice is pressed against said mouth or is moved away therefrom. 2. Outil selon la revendication 1, caractérisé en ce qu'il comprend au moins un ressort tendant à écarter l'orifice de la bouche.     2. Tool according to claim 1, characterized in that it comprises at least one spring tending to separate the orifice from the mouth. 3. Outil selon la revendication 2, caractérisé en ce qu'il présente la forme d'une paire de brucelles, l'élément (1) et le bras (4) étant liés l'un à l'autre par une de leurs extrémités, l'un d'entre eux au moins étant un ressort sur au moins une partie de sa longueur, la bouche (2) et l'orifice (5) étant placés sur les autres extrémités.  3. Tool according to claim 2, characterized in that it has the shape of a pair of tweezers, the element (1) and the arm (4) being connected to one another by one of their ends , at least one of them being a spring over at least part of its length, the mouth (2) and the orifice (5) being placed on the other ends. 4. Utilisation d'un outil selon la revendication 1 pour saisir et déposer des pièces.  4. Use of a tool according to claim 1 for gripping and depositing parts. 5. Utilisation d'un outil selon la revendication 2 pour saisir et déposer des pièces.  5. Use of a tool according to claim 2 for gripping and depositing parts. 6. Utilisation d'un outil selon la revendication 3 pour saisir et déposer des pièces.  6. Use of a tool according to claim 3 for gripping and depositing parts.
CH105386A 1986-03-14 1986-03-14 Vacuum tool for picking up small objects - includes vacuum pipe with spring lever over vacuum orifice to remove object when released CH667839A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH105386A CH667839A5 (en) 1986-03-14 1986-03-14 Vacuum tool for picking up small objects - includes vacuum pipe with spring lever over vacuum orifice to remove object when released

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH105386A CH667839A5 (en) 1986-03-14 1986-03-14 Vacuum tool for picking up small objects - includes vacuum pipe with spring lever over vacuum orifice to remove object when released

Publications (1)

Publication Number Publication Date
CH667839A5 true CH667839A5 (en) 1988-11-15

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CH105386A CH667839A5 (en) 1986-03-14 1986-03-14 Vacuum tool for picking up small objects - includes vacuum pipe with spring lever over vacuum orifice to remove object when released

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CH (1) CH667839A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1855166A1 (en) * 2006-05-12 2007-11-14 ETA SA Manufacture Horlogère Suisse Tweezers and prehension sytem
CN104540641A (en) * 2012-05-02 2015-04-22 拉维尔私人有限公司 Device and method for cleaning and processing natural extracts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1855166A1 (en) * 2006-05-12 2007-11-14 ETA SA Manufacture Horlogère Suisse Tweezers and prehension sytem
US7775569B2 (en) 2006-05-12 2010-08-17 Eta Sa Manufacture Horlogère Suisse Tweezers and grasping system
CN104540641A (en) * 2012-05-02 2015-04-22 拉维尔私人有限公司 Device and method for cleaning and processing natural extracts

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