EP0142655A2 - Vorrichtung zum Schleifen der Schweisszone von Radkränzen von Rädern von Fahrrädern und Kraftfahrzeugen - Google Patents

Vorrichtung zum Schleifen der Schweisszone von Radkränzen von Rädern von Fahrrädern und Kraftfahrzeugen Download PDF

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Publication number
EP0142655A2
EP0142655A2 EP84110752A EP84110752A EP0142655A2 EP 0142655 A2 EP0142655 A2 EP 0142655A2 EP 84110752 A EP84110752 A EP 84110752A EP 84110752 A EP84110752 A EP 84110752A EP 0142655 A2 EP0142655 A2 EP 0142655A2
Authority
EP
European Patent Office
Prior art keywords
rim
rims
abrading
welding zone
machining
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Withdrawn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
EP84110752A
Other languages
English (en)
French (fr)
Other versions
EP0142655A3 (de
Inventor
Giannino Muffolini
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.)
Sillem 'italiana Lavorazione Legno E Metalli SpA Soc
Original Assignee
Sillem 'italiana Lavorazione Legno E Metalli SpA Soc
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 Sillem 'italiana Lavorazione Legno E Metalli SpA Soc filed Critical Sillem 'italiana Lavorazione Legno E Metalli SpA Soc
Publication of EP0142655A2 publication Critical patent/EP0142655A2/de
Publication of EP0142655A3 publication Critical patent/EP0142655A3/de
Withdrawn legal-status Critical Current

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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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/44—Single-purpose machines or devices for grinding rims of vehicle wheels, e.g. for bicycles

Definitions

  • This invention relates to an apparatus for abrading machining of the welding zone for the rims of bycicle and motor vehicle wheels, and comprises a snap rotary table, a series of operative units arranged around the rotary table and provided with abrading tools, and chuck means on such a table for supporting the rims at working or machining position.
  • the rims are rims obtained by end-to-end welding of a cut down size of suitable circle curved section.
  • the prior art automatic apparatuses designed for the machining of the welding zone of rims for bicycles,morotcycles and the like, an example of which is shown and described in the Italian Patent No. 959.631, generally comprise three sets, that is a first set for the machining of the side edges and outside of the welding zone, a second set for rim transfer from the firstset to the third set, which carries out the machining of the inside of the rim welding zone and comprises a snap rotary table, chuck means on such a table for rim support and a series of operative units arranged along the table perimeter for machining the inner side of the rim.
  • the inside of the welding zone is clear and accordingly the zone can be machined on each side thereof by the operative units located along the table periphery.
  • reference numeral 1 denotes as a whole a snap rotary table by conventional drive means, not shown. At regular intervals or spacings along the periphery thereof, said table has a series of chuck means, denoted as a whole at 2, and designed to support rims 3, 3A at suitable position for machining of the welding zone B of the abutted ends of the circle bent section comprising the rim.
  • Conventional operating units I, II, III, IV, V, VI, VII and VIII are arranged around the table, at angular intervals corresponding to the chuck means 2 and for machining with the respective abrading tool(s), such as grinding wheels M arranged thereon, said units being provided with tool driving means, feed thereof in accordance with the rim contour being machined, which feed is controlled by copying devices, if required.
  • Said chuck means 2 which are all identical to one another, comprise a pair of elements 2a of L-shape as sidewise seen, which are vertically adjustably secured by means of screws 2b, and cantilever projecting by the lower side 2c from the table periphery.
  • a pin 2d extends to the other element 2a of the pair and is chamfered at its projecting end 2e.
  • the two pins of the pair are spaced apart from each other and an axis there between.
  • said rim 3, 3A bears thereon from opposite sides of zones B, and therefore the latter is accessible from all sides.
  • the chuck means 2 include an upper pressing member of 2f,made for example of plastics material, which is arranged on the rim at a vertical diameter midway between the two supporting pins 2d.
  • This member 2f is secured to the stem 2g of a pneumatic jacket 2h, which is mounted on a bracket 2i that can be displaced and secured along a column 21 in accordance with the diameter of a rim 3, 3A being machined.
  • Said column 21 is secured by screw means 2m to the upper face of table 1.
  • the rims After being machined, the rims arrive one by one at an unloading station, at which the operative unit is located for rim transfer parallel to itself from the associated chuck to an unloading location.
  • This unloading unit denoted as a whole at 100, comprises a stationary column 101, along which a shaft 102 is slidably mounted and operated by a pneumatic jack 103.
  • the shaft 102 is integral with a ring nut 104 having a straddle or extension 105 to which a guide pin 106 is secured, the latter being downward facing and guided in a bushing 107.
  • a bushing is integral with a straddle or extension 108 of said column 101.
  • This shaft 102 has secured thereon a gear wheel 108', one for each chain 111.
  • the shaft rotatably carries an arm 110 suitably provided with a bushing 112.
  • said bushing112 is connected by a further arm 113 and articulated joint 114 to a pneumatic jack 115, which is pivoted at 116 to a support 117 integral with shaft 102, for example by said arm 105.
  • said arm 110 has a bushing 118 rotatably carrying by axial and radial bearings 119 a unit for gripping the rim 3, 3A at the welding zone B.
  • This unit comprises a pneumatic jack 120, the stem 121 of which extends in a bushing 123 having the jack cylinder connected thereto.
  • a platform 124 is secured to bushing 123 and has two sides 125 between which a block 126 is slidably mounted.
  • a connecting rod 127 is pivoted at 128 to said block and operates on a pin 129 of a lever 130 pivoted at 131 to said sides 125.
  • the lever carries an adjustable jaw 132 which, under the control of said jack 120, clamps the rim against a pair of parallel horizontal pins 133 projecting from the sides 125. Therefore, the described unloading unit can cause vertical displacements, horizontal rotations about two axes (that of column 101 and that of bushing 123) and closing and opening of the clamp gripping the rim 3, 3A and comprising the mem - bers 132,133.
  • the apparatus has eight operative units or stations I, II, III, IV, V, VI, VII and VIII, provided with abrading tools, such as grinding wheels, in the case of different granulation.
  • the apparatus has a manual loading station K and an unloading station IX for the finished rim, at which the unloading device of Fig. 6,7 and 8 is arranged.
  • the table After rim loading at the station K by the operator, as described in connection with Figs. 6,7 and 8, the table carries such a rim in front of unit I, which is also shown in Fig. 2.
  • the grinding wheel M of this unit rough-shapes the welding zone along the inner central portion of rim corresponding about to the section or length R-R' of Fig. 9.
  • the inclined grinding wheel therein located provides for rough-shaping of one half of the outer side or channel of the rim, that is the section or length a, while at the next unit or station IV the other half a' is rough-shaped.
  • the unit or station V finishes the tips or crests P and Q outside of the rim.
  • the unit or station VI is for prefinishing of the section or length R-R', and unit or station VII is for sides R"-R and R'-R"', and finally the unit or station VIII is for trimming the section or length R-R'.
  • Unit or station IX is for unloading a finished rim as follows.
  • the rim zone B is between the pins 133 and open jaw 132.
  • the jacks 132, 103 and 2b are operated, so that the jaw 2f is lifted and leaves or releases the rim 3, 3A and the jaw 132 is closed and lifted and the rim is thereby lifted from the two lower bearings 2d. Then, the jack 115 is reversely controlled,which causes the arm 110 to rotate to the position F of Fig. 1, and then the jack 103 is lowered and jaw 132 opens, whereby the r 4 m can be removed. The cycle is repeated with a new stop of the table.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP84110752A 1983-11-18 1984-09-08 Vorrichtung zum Schleifen der Schweisszone von Radkränzen von Rädern von Fahrrädern und Kraftfahrzeugen Withdrawn EP0142655A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT23770/83A IT1119701B (it) 1983-11-18 1983-11-18 Apparecchiatura per la produzione abrasiva della zona di saldatura dei cerchioni delle ruote di bicicletta e motoveicoli
IT2377083 1983-11-18

Publications (2)

Publication Number Publication Date
EP0142655A2 true EP0142655A2 (de) 1985-05-29
EP0142655A3 EP0142655A3 (de) 1986-07-30

Family

ID=11209831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110752A Withdrawn EP0142655A3 (de) 1983-11-18 1984-09-08 Vorrichtung zum Schleifen der Schweisszone von Radkränzen von Rädern von Fahrrädern und Kraftfahrzeugen

Country Status (3)

Country Link
EP (1) EP0142655A3 (de)
JP (1) JPS60114455A (de)
IT (1) IT1119701B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102430974A (zh) * 2011-12-26 2012-05-02 中信戴卡轮毂制造股份有限公司 铝车轮光整工艺

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107175568A (zh) * 2017-06-30 2017-09-19 清华大学 数控抛光多工位多夹具旋转工作台和具有其的机床
CN110561214B (zh) * 2019-09-12 2021-10-01 山东导航车轮有限公司 一种基于轮辋打磨去毛刺的辅助工装
CN116441926B (zh) * 2023-03-20 2024-09-20 无锡市恒欣金属制品有限公司 插秧机车轮交替式自动焊接专用气动夹具

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252594A (en) * 1940-05-01 1941-08-12 Gustave A Carlson Rotary work holding machine
FR1368768A (fr) * 1963-04-02 1964-08-07 Appareil pour prise autocentrée de cylindres de divers diamètres
US3422583A (en) * 1964-04-16 1969-01-21 Cincinnati Milling Machine Co Method for positioning a roll on a roll grinder
DE2044806A1 (de) * 1970-09-10 1972-03-16 Koppers, Eduard, 4243 Isselburg; Gertzen, Josef, 4241 Empel; Landers, Bruno, 4243 Isselburg Halbautomatische Vorrichtung zum Schleifen und Verputzen
IT1083522B (it) * 1977-06-15 1985-05-21 Famir Int Spa Dispositivo di alimentazione e di scambio automatico per pezzi anulari da lavorare in una rettificatrice particolarmente per anelli di cuscinetti

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102430974A (zh) * 2011-12-26 2012-05-02 中信戴卡轮毂制造股份有限公司 铝车轮光整工艺

Also Published As

Publication number Publication date
EP0142655A3 (de) 1986-07-30
IT8323770A0 (it) 1983-11-18
JPS60114455A (ja) 1985-06-20
IT1119701B (it) 1986-03-10

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Inventor name: MUFFOLINI, GIANNINO