EP1531195A1 - Dispositif porte-pièces, notamment pour des appareillages pour l'électroplacage - Google Patents

Dispositif porte-pièces, notamment pour des appareillages pour l'électroplacage Download PDF

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Publication number
EP1531195A1
EP1531195A1 EP03025977A EP03025977A EP1531195A1 EP 1531195 A1 EP1531195 A1 EP 1531195A1 EP 03025977 A EP03025977 A EP 03025977A EP 03025977 A EP03025977 A EP 03025977A EP 1531195 A1 EP1531195 A1 EP 1531195A1
Authority
EP
European Patent Office
Prior art keywords
frame according
rods
supporting structure
frame
constituted
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.)
Withdrawn
Application number
EP03025977A
Other languages
German (de)
English (en)
Inventor
Franco Marchetti
Massimo Moni
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.)
Asmega SpA
Original Assignee
Asmega 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 Asmega SpA filed Critical Asmega SpA
Priority to EP03025977A priority Critical patent/EP1531195A1/fr
Publication of EP1531195A1 publication Critical patent/EP1531195A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/06—Suspending or supporting devices for articles to be coated
    • C25D17/08—Supporting racks, i.e. not for suspending

Definitions

  • the present invention relates to a work holder frame particularly for electroplating machines.
  • the electroplating process allows, by electrolysis, to coat with a thin protective and/or decorative metallic layer parts of various shapes and kinds, also made of metallic material or treated plastic material.
  • Electroplating machines comprise large tanks that contain anodes in an electrolytic bath in which the parts to be treated are immersed while arranged on frames supported by a supporting bar known as bus bar.
  • the parts to be treated are immersed in the electrolytic bath as cathodes.
  • the metallic ions due to a difference in potential applied between the cathode and the anode, flow from said anode toward said cathode and are deposited on the surface of the parts.
  • the relative position of the parts is affected by certain limitations that are due mainly to the fact that the surfaces to be subjected to the electroplating treatment should not hide each other, since the lines of flux of the ion current generated in the electrolytic bath would not be distributed uniformly.
  • the aim of the present invention is to solve or reduce substantially the above-noted problems of known types of electroplating machine.
  • an object of the present invention is to provide a work holder frame whose structure is such that it increases the loading capacity of the electroplating machine.
  • Another object is to provide a work holder frame whose structure is such that a uniformly distributed surface layer is deposited on the parts.
  • Another object is to provide a work holder frame structure that prevents the forming of air pockets.
  • Another object is to provide a work holder frame that has a simple structure.
  • a work holder frame particularly for electroplating machines of the types that comprise tanks for containing the electrolytic bath on the upper rim of which couplings for bus bars are arranged characterized in that it comprises a plurality of motorized work holder rods that are arranged parallel to each other and in succession and are rotatably coupled and electrically connected to a supporting structure that is designed to be arranged during use within said electrolytic bath as a cathode and is provided with brackets for coupling and electrical connection to said bus bar.
  • a work holder frame particularly for electroplating machines having the structure according to the invention is generally designated by the reference numeral 10 in a first embodiment.
  • the work holder frame 10 is particularly suitable for electroplating machines of the types that comprise tanks 11 for containing an electrolytic bath 12 on the upper rim of which couplings 13 for bus bars 14 are arranged.
  • the frame 10 comprises a plurality of motorized work holder rods 15, which are arranged parallel to each other in succession and are rotatably coupled and electrically connected to a supporting structure 16, described in greater detail hereinafter, that is designed to be arranged during use within the electrolytic bath 12 as a cathode and is provided with brackets 17 for coupling and electrical connection to the bus bar 14.
  • the rods 15 are detachably rotatably coupled at their ends to sliding blocks 18 that can slide and be fixed in a chosen position on the supporting structure 16.
  • the supporting structure 16 is constituted by a substantially quadrangular outer frame 19, in which the vertically arranged portions 20a and 20b provide sliding guides along which it is possible to arrange adjustably the sliding blocks 18.
  • Each rod 15 is connected electrically to the supporting structure 16 by means of pairs of flexible cables 21 arranged at its ends.
  • the electrical connection between the rods 15 and the support 16, however, can also be provided by means of bearings for the rotation of the rods 15 on the corresponding sliding blocks 18.
  • the flexible cables 21, the supporting structure 16 and the rods 15 are sheathed with insulating material except for the regions of mutual contact, for electrical connection, so as to allow the parts supported by said rods 15, by means of grip means 22, for example clamps, to act as a cathode, accordingly allowing electroplating.
  • the rods 15 are kinematically connected, by way of a corresponding kinematic chain, described in greater detail hereinafter, to a source of oscillating rotary motion 23, which is also described in greater detail hereinafter.
  • the kinematic chain is constituted in this case by a gear system that comprises a plurality of gears 24 that are keyed to one end of said rods 15 on the same side of said supporting structure 16.
  • the oscillating rotary motion source 23 is constituted, in this case, by a gearmotor 25 that is fixed to one of said brackets 17, is arranged eccentrically with respect to said gears 24, and is connected to the upper gear 24a by means of a rod-and-crank mechanism 26.
  • gearmotor 25 Since the gearmotor 25 is fixed to a bracket 17, it is necessary to arrange laterally to the tank 11 a three-phase movable contact 31 to supply it with alternating current.
  • the work holder frame 10 allows to rotate the parts mounted on said frame 10 synchronously, transferring with a single actuation the oscillating motion to the rods 15.
  • the work holder rods 15 can be disassembled and optionally reassembled, after replacing the corresponding gear 24, even with a different center distance if it is necessary to plate parts whose dimensions differ considerably.
  • the rods 15 can be connected kinematically to a circular rotary motion source.
  • the circular rotary motion source is constituted by a gearmotor, which is fixed to one of said brackets 17 and is kinematically connected to an upper gear 24a.
  • the rods 15 have a constant direction of rotation.
  • Figures 4 and 5 illustrate a second embodiment of the work holder frame, which in this case is designated by the reference numeral 110.
  • the frame 110 is fully similar to the first embodiment described above, except for the position of the oscillating rotary motion source 123.
  • the oscillating motion source 123 is constituted by a gearmotor 125 that is fixed laterally and externally to a tank 111 and is kinematically connected, when the frame 110 is arranged within the tank 111, to an upper gear 124a by way of a corresponding transmission, described in greater detail hereinafter, which comprises a rod-and-crank mechanism 126 that is arranged eccentrically with respect to the axis of the gear system constituted by the gears 124.
  • the transmission comprises a second ring gear 128 that meshes, when the frame 110 is arranged within the tank 111, with a corresponding first ring gear 127 that is supported in a cantilevered fashion by the gearmotor 125.
  • the second ring gear 128 is rigidly coupled to the end of a shaft 129 that is rotatably coupled to one of the brackets 117 and has a third ring gear 130 that is keyed thereto and is connected by means of the rod-and-crank mechanism 126 to the upper gear 124a.
  • the rod-and-crank mechanism 126 is arranged eccentrically with respect to the axis of the gear system constituted by the gears 124, so as to impart an oscillating motion to them and accordingly to the rods 115.
  • the rods 115 can be connected kinematically to a circular rotary motion source.
  • the circular rotary motion source can be constituted by a gearmotor that is fixed laterally and externally to the tank 111 and is kinematically connected, when the frame 110 is arranged within the tank 111, to an upper gear 124a by means of a corresponding transmission.
  • the work holder frame 10 effectively helps to minimize the differences in plating thickness on the various surfaces of a same part.
  • the materials may be any according to requirements.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
EP03025977A 2003-11-13 2003-11-13 Dispositif porte-pièces, notamment pour des appareillages pour l'électroplacage Withdrawn EP1531195A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03025977A EP1531195A1 (fr) 2003-11-13 2003-11-13 Dispositif porte-pièces, notamment pour des appareillages pour l'électroplacage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03025977A EP1531195A1 (fr) 2003-11-13 2003-11-13 Dispositif porte-pièces, notamment pour des appareillages pour l'électroplacage

Publications (1)

Publication Number Publication Date
EP1531195A1 true EP1531195A1 (fr) 2005-05-18

Family

ID=34429346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025977A Withdrawn EP1531195A1 (fr) 2003-11-13 2003-11-13 Dispositif porte-pièces, notamment pour des appareillages pour l'électroplacage

Country Status (1)

Country Link
EP (1) EP1531195A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105483802A (zh) * 2015-12-10 2016-04-13 重庆红岩方大汽车悬架有限公司 一种电泳漆吊具
CN113549904A (zh) * 2021-06-22 2021-10-26 惠州市安泰普表面处理科技有限公司 用于对工件进行化学镍处理的自动化生产线
CN114713411A (zh) * 2022-04-25 2022-07-08 东风汽车集团股份有限公司 一种柔性化多功能发动机罩支撑装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439149A1 (fr) * 1978-10-20 1980-05-16 Morin Secretan Rech Perfect Procede et installation pour revetir des pieces, notamment de revetements metalliques
EP0399049A1 (fr) * 1988-11-07 1990-11-28 Matsushita Electric Industrial Co., Ltd. Appareil de placage pour resonateurs dielectriques
US5951763A (en) * 1998-02-09 1999-09-14 Knox; David J. Immersible rotatable carousel apparatus for wetting articles of manufacture
US6071385A (en) * 1997-11-04 2000-06-06 The Boeing Company Racking fixture for electrochemical processing
JP2001181893A (ja) * 1999-10-13 2001-07-03 Sumitomo Special Metals Co Ltd 表面処理装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439149A1 (fr) * 1978-10-20 1980-05-16 Morin Secretan Rech Perfect Procede et installation pour revetir des pieces, notamment de revetements metalliques
EP0399049A1 (fr) * 1988-11-07 1990-11-28 Matsushita Electric Industrial Co., Ltd. Appareil de placage pour resonateurs dielectriques
US6071385A (en) * 1997-11-04 2000-06-06 The Boeing Company Racking fixture for electrochemical processing
US5951763A (en) * 1998-02-09 1999-09-14 Knox; David J. Immersible rotatable carousel apparatus for wetting articles of manufacture
JP2001181893A (ja) * 1999-10-13 2001-07-03 Sumitomo Special Metals Co Ltd 表面処理装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 24 11 May 2001 (2001-05-11) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105483802A (zh) * 2015-12-10 2016-04-13 重庆红岩方大汽车悬架有限公司 一种电泳漆吊具
CN105483802B (zh) * 2015-12-10 2023-09-15 重庆红岩方大汽车悬架有限公司 一种电泳漆吊具
CN113549904A (zh) * 2021-06-22 2021-10-26 惠州市安泰普表面处理科技有限公司 用于对工件进行化学镍处理的自动化生产线
CN113549904B (zh) * 2021-06-22 2023-08-04 惠州市安泰普表面处理科技有限公司 用于对工件进行化学镍处理的自动化生产线
CN114713411A (zh) * 2022-04-25 2022-07-08 东风汽车集团股份有限公司 一种柔性化多功能发动机罩支撑装置

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