EP0598369B1 - Appareil de finition vibratoire pour des pièces accrochées - Google Patents

Appareil de finition vibratoire pour des pièces accrochées Download PDF

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Publication number
EP0598369B1
EP0598369B1 EP93118430A EP93118430A EP0598369B1 EP 0598369 B1 EP0598369 B1 EP 0598369B1 EP 93118430 A EP93118430 A EP 93118430A EP 93118430 A EP93118430 A EP 93118430A EP 0598369 B1 EP0598369 B1 EP 0598369B1
Authority
EP
European Patent Office
Prior art keywords
parts
bars
supporting element
fact
finishing
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.)
Expired - Lifetime
Application number
EP93118430A
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German (de)
English (en)
Other versions
EP0598369A1 (fr
Inventor
Mario C/O Reni-Cirillo S.R.L. Reni
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.)
Reni Cirillo SRL
Original Assignee
Reni Cirillo SRL
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 Reni Cirillo SRL filed Critical Reni Cirillo SRL
Publication of EP0598369A1 publication Critical patent/EP0598369A1/fr
Application granted granted Critical
Publication of EP0598369B1 publication Critical patent/EP0598369B1/fr
Anticipated expiration legal-status Critical
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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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • B24B31/064—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers the workpieces being fitted on a support

Definitions

  • This invention relates to a device for the finishing of hanging parts by means of a vibrating machine.
  • the market offers vibrating machines allowing to obtain high quality finishing degrees on metal parts with various shape and size and, in particular, slight rounding off, roughness reduction and surface polishing. These operations are controlled by adjusting the frequency of the vibrations, the composition of the processing media, the geometrical shape of the same and the possible additives (cleansing, degreasing, polishing, abrasive and protection agents) wchich are fed into the processing bowls.
  • the vibratory finishing has therefore become a high precision step, applicable also to delicate parts or to parts of high intrinsic value, with extremely low running costs.
  • Processing media are typically commercialized in the form of chips having the maximum dimension, being the diagonal or the diameter, comprised between 2 and 60 mm and having different shapes, such as sphere, regular and irregular polyhedron, ellipse.
  • the amplitude of the vibratory movement trasmitted from the walls to its content can be controlled wheares the forming of preferential courses of the parts within the vibratory mass of media can hardly be avoided, as it is depending on many variables such as the particular shape and size of the parts themselves, the ratio between the weight and the volume of the parts, the difference between the specific weight of the construction material of the parts and that of the processing media.
  • SU-A-884 980 describes a device for suspending a workpiece in a vibrating unit containing a grinding media but it does not allow the treatment of more than one piece at one time in the same unit because the pieces are freely moving in the media and thus they should collide one with the another.
  • the device according to the present invention can obviate all the above mentioned problems while offering further advantages which cannot be obtained with other types of machines as will be made clear by the following detailed description.
  • the supporting element of the device according to the present invention can have the shape of a bar, a tubular element, a box-type structure made of two channel sections or other shapes suitable to the job.
  • the supporting element is represented by the cover of the vibrating unit.
  • This design offers a further advantage as it allows to obtain a reduction of the noise produced by the machine during its running.
  • the supporting element simply rests on the top edges of the vibrating unit without being fixed and, when moved vertically, all the parts are plunged into or extracted from the media at the same time.
  • the bars of the device have polygonal section, preferably triangular, rectangular or exagonal and the passing holes of the supporting element into which the bars are inserted have the same polygonal section but are oversized of a percentage comprised between 20 and 200% with respect to the bar.
  • this fundamental construction feature of the device according to the present invention allows the parts hooked to the lower end of the bar and plunged into the media, to move together with the bar but with different amplitude and course which are pre-set and adjusted following the shape of the bar and the ratio between the dimensions of the section of the passing hole and those of the section of the bar.
  • the result obtained is that parts move within the processing media following a given course without reducing the effect of the abrasive action and exposing the whole surface to the treatment in a homogeneous way.
  • the supporting elements rest simply on the edges of the vibrating unit and that also the bars are not fixed to the supporting elements, the risk of having parts damaged by the supports (happening if rigid supports are used) is avoided and the wear of the supports produced by the processing media is substantially reduced. Furthermore the mobility of the supporting element and relevant bars reduce the noise produced by the vibrating unit.
  • the bars have rectangular section shaped in such a way that the lower end of the bar is 90° rotated with respect to the upper end.
  • the support is lifted together with bars and parts and extracted from the vibrating unit, bars slide through the holes obtaining the 90° rotation of the parts, feature which represents a great advantage for the unloading of the finished parts and the following loading of new parts needing to be treated.
  • the vertically mobile device acts also as cover of the vibrating unit, with the further advantage to reduce the noise produced by the vibrating unit during the treatment.
  • This particular shape of the bars (2) allows parts to perform a 90° rotation when said bars (2) are lifted vertically assuming the position shown in figure 3, thus helping the operations of hooking and unhooking of the part (1) to the bar (2) carried out by the operator, at the beginning and at the end of the polishing treatment.
  • the supporting element (5) supports the bars (2) which are inserted through passing holes (6) drilled in said supporting element and yet free to move with respect of the same, as the upper ends of the bars (7) are wider than their bodies and therefore cannot pass through the holes (6) into which they are inserted.
  • the supporting element (5) rests on the top edges of the vibrating unit (8) and when moved vertically by means of the frame (10), all the parts (1) hooked to the bars (2) are simultaneously plunged into and extracted from the processing media (9) contained into the vibrating unit (8).
  • the parts (1) hooked to the lower end (3) of each bar (2) and plunged into the processing media (9) move together with this but with an amplitude and a course which are preset and adjusted following the possibility of movement of the bars (2) in connection with the relevant passing holes (6).
  • the parts (1) under treatment move within the mass of media (9) following a given course but exposing the whole surface to be polished to the abrasive action of media in a homogeneous way.
  • the bars (2) supported by the element (5) are 12, said number being in relation with the dimensions of the parts (1) to be polished. It is obvious that, if the dimensions of the parts (1) change, the number of the bars (2) will change accordingly so that the distance between two consecutive bars is such as to allow the movement of the parts (1) during the treatment without making parts enter in touch one with the other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (7)

  1. Dispositif pour offectuer la finition de pièces suspendues au moyen d'une machine vibrante comprenant un élément support (5) verticalement mobile par rapport à l'unité vibrante (8) et portant lesdites pièces suspendues devant être soumises au traitement de finition caractérisé en ce que cet élément support porte une pluralité de barres de section polygonale (2) insérées dans des passages (6) ménagés dans l'élément (5), ceux-ci étant de dimensions supérieures à celles des barres (2), ces dernières demeurant mobiles et ayant leur extrémité supérieure (7) plus large que le reste de sorte qu'elles ne peuvent pas traverser lesdits passages (6) et leur partie inférieure (3) ayant la forme d'un crochet ou d'une tige afin de fixer ladite pièce, la distance entre les passages (6) étant ajustée selon la taille des pièces (1) de manière à éviter qu'elles n'entrent au contact les unes des autres pendant le traitement.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'élément support (5) a la forme d'une barre.
  3. Dispositif selon la revendication 1, caractérisé on ce que l'élément support (5) a une forme tubulaire.
  4. Dispositif selon la revendication 1, caractérisé en ce que l'élément support (5) a la forme d'une structure du type d'une boite comportant deux sections de canal.
  5. Dispositif selon la revendication 1, caractérisé en ce que l'élément support (5) est constitué par le couvercle de l'unité vibrante.
  6. Dispositif selon la revendication 1, caractérisé en ce que les barres (2) ont une section polygonale et en ce que les passages de l'élément support (5) dans lesquels elles sont insérées ont la même section polygonale mais d'une taille supérieure à celle de leur section d'un pourcentage compris entre 20 et 200%.
  7. Dispositif selon la revendication 6, caractérisé en ce que les barres (2) ont une section rectangulaire formée de telle sorte que leur partie inférieure (3) est torsadée de 90° par rapport à la partie supérieure (4).
EP93118430A 1992-11-19 1993-11-15 Appareil de finition vibratoire pour des pièces accrochées Expired - Lifetime EP0598369B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVA920026A IT1260578B (it) 1992-11-19 1992-11-19 Dispositivo per la finitura in sospensione di pezzi mediante una macchina a vibrazione
ITVA920026 1992-11-19

Publications (2)

Publication Number Publication Date
EP0598369A1 EP0598369A1 (fr) 1994-05-25
EP0598369B1 true EP0598369B1 (fr) 1997-07-02

Family

ID=11423212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93118430A Expired - Lifetime EP0598369B1 (fr) 1992-11-19 1993-11-15 Appareil de finition vibratoire pour des pièces accrochées

Country Status (4)

Country Link
EP (1) EP0598369B1 (fr)
DE (1) DE69311878T2 (fr)
ES (1) ES2106253T3 (fr)
IT (1) IT1260578B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310241A1 (de) * 2003-03-08 2004-09-16 Schenck Process Gmbh Verfahren und Vorrichtung zur Oberflächenbearbeitung von metallischen Werkstücken
EP2722129A1 (fr) * 2012-10-17 2014-04-23 MTU Aero Engines GmbH Dispositif et procédé de traitement de surfaces, notamment de surfaces d'espaces creux
IT201800009904A1 (it) * 2018-10-30 2020-04-30 Rösler Italiana Srl Supporto, macchina e processo per finiture superficiali

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253369A (en) * 1964-01-02 1966-05-31 Reichert Float & Mfg Company Apparatus for cleaning and processing articles
GB2035863B (en) * 1978-11-30 1982-12-08 Ohno I Grinding method and apparatus
SU884980A1 (ru) * 1979-05-25 1981-11-30 Предприятие П/Я М-5841 Установка дл вибрационной обработки деталей
SU1009729A2 (ru) * 1981-12-03 1983-04-07 Предприятие П/Я В-2915 Установка дл вибрационной обработки деталей
DE3332786C2 (de) * 1983-09-10 1985-10-24 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal Tauchgleitschleifmaschine

Also Published As

Publication number Publication date
DE69311878D1 (de) 1997-08-07
IT1260578B (it) 1996-04-16
DE69311878T2 (de) 1997-11-13
ITVA920026A1 (it) 1994-05-20
EP0598369A1 (fr) 1994-05-25
ES2106253T3 (es) 1997-11-01
ITVA920026A0 (it) 1992-11-19

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