EP0120577A2 - Machine à polir - Google Patents

Machine à polir Download PDF

Info

Publication number
EP0120577A2
EP0120577A2 EP84300915A EP84300915A EP0120577A2 EP 0120577 A2 EP0120577 A2 EP 0120577A2 EP 84300915 A EP84300915 A EP 84300915A EP 84300915 A EP84300915 A EP 84300915A EP 0120577 A2 EP0120577 A2 EP 0120577A2
Authority
EP
European Patent Office
Prior art keywords
polishing
arm
polished
rotatable
polishing head
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.)
Granted
Application number
EP84300915A
Other languages
German (de)
English (en)
Other versions
EP0120577A3 (en
EP0120577B1 (fr
Inventor
Terence John Williamson
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.)
Burwell Reed and Kinghorn Ltd
Original Assignee
Burwell Reed and Kinghorn Ltd
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 Burwell Reed and Kinghorn Ltd filed Critical Burwell Reed and Kinghorn Ltd
Priority to AT84300915T priority Critical patent/ATE31657T1/de
Publication of EP0120577A2 publication Critical patent/EP0120577A2/fr
Publication of EP0120577A3 publication Critical patent/EP0120577A3/en
Application granted granted Critical
Publication of EP0120577B1 publication Critical patent/EP0120577B1/fr
Expired 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
    • B24B27/0084—Other grinding machines or devices the grinding wheel support being angularly adjustable
    • 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
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
    • B24B5/08—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally involving a vertical tool spindle
    • 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
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/16—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged

Definitions

  • This invention relates to a polishing machine and in particular to a machine for polishing the internal surface of a mould.
  • Metal moulds for example moulds for glassware, often require to have their internal mould surfaces smoothly finished. This can be accomplished by means of a polishing machine on which an operative applies manual pressure to an arm having a rotating polishing head which is traversed up and down the internal surface of a mould. A high degree of skill is required in order to provide the correct pressure and produce a correctly polished product.
  • the present invention seeks to provide an automatic polishing machine improved in these respects.
  • a polishing apparatus which comprises a rotatable table upon which the article to be polished is mounted, an arm carrying a rotatable polishing head mounted above the rotatable table and capable of being traversed towards and away from the table, the mounting of the polishing arm including a pivot so that the arm may be tilted under the action of a fluid-operated cylinder whereby to bring the polishing head into contact with the surface to be polished, the fluid-operated cylinder being connected into a fluid circuit having a pressure regulator in its outlet.
  • the fluid-operated cylinder and associated circuit may be a hydraulic or pneumatic circuit, and is preferably the latter.
  • polishing apparatus comprises a rotatable table 10 on which a work piece, in this case a glass mould 12 may be mounted by means of clamps 14.
  • the internal surface 16 of a mould is the surface to be polished and this will generally not be plain cylindrical.
  • a polishing arm 18 carrying a polishing head 20 of abrasive material mounted in a chuck 22 driven from a motor 24, through a suitable belt drive (not shown) in order to rotate the polishing head 20.
  • the chuck and motor are mounted on a swinging bracket 26 pivotally attached at 28 to a carriage 30.
  • the carriage is slidably mounted on vertical rods 32 and is driven by means not shown in the drawings to traverse down and up towards and away from the rotating table 10 respectively.
  • an air cylinder 34 which, when pressurised, will tilt the bracket 26 about the pivot 28 thereby moving the polishing arm 18 in the direction of arrow A, and thereby bringing the polishing head 20 into contact with the internal surface 16 of the article. 12 to be polished.
  • the operation of the device is as follows.
  • the article 12 is mounted on a rotatable table 10 as shown in the drawings and the carriage 30 traverses downwardly until the polishing head 20 is level with the lowest part of the internal surface 16 to be polished.
  • Pressure is applied to the cylinder 34 thus tilting the bracket 26 and therefore the polishing arm 18 bringing the head 20 into contact with the internal surface 16.
  • the motor 24 rotates the arm 18 and therefore the head 20 causing the abrasive head 20 to polish the portion of the surface 16 contacted.
  • the table 10 is rotated ensuring that the whole circumference of the internal surface 16 is polished evenly.
  • the carriage 32 is slowly traversed upwards so that the whole length of.the internal surface is also polished.
  • the cylinder 34 has an air pressure regulator on its outlet or exhaust side which can be preset at a desired pressure, for example 20 psi gauge. This ensures that the pressure within the cylinder is constant at the set regulated pressure and that the force applied through the arm 18 between the polishing head 20 and the internal surface 16 is also constant irrespective of the degree of tilt (and therefore the internal configuration of the surface 16) of the arm 18. Limit switches can be provided so that the carriage 30 traverses up and down either indefinitely or for a given number of movements so that the apparatus, once set, can be left to run automatically without needing a skilled operator or even any attention at all in between changing work pieces 12.
  • the apparatus of the invention operating under constant pressure gives an extremely even polish to the work piece and does not rely on operator skill in order to achieve this.
  • the speed of rotation of the table 10 and of the arm 18 are preferably infinitely variable between zero and maximum, and are furthermore preferably variable independently of one another so that different combinations of arm rotation and table rotation can be selected to suit particular conditions.
  • One particular advantage of this is that 'our-of-round' cavities can be polished provided the speed of rotation of the table is slowed down within the response time of the swinging bracket 26 and air cylinder 34, so that the arm 18 and more particularly the polishing head 20 can accurately follow the contours of the cavity.
  • This enables the apparatus of the invention to be extremely versatile in operation, and it can tackle many polishing jobs which would have taken a great deal of skill and difficulty to accomplish hitherto.
  • the shape of the cavity 16 to be polished should not contain any reentrant surfaces since the rotation of the table lO would cause such to be passed over by the polishing arm 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (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)
EP84300915A 1983-03-01 1984-02-14 Machine à polir Expired EP0120577B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84300915T ATE31657T1 (de) 1983-03-01 1984-02-14 Poliermaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8305667 1983-03-01
GB838305667A GB8305667D0 (en) 1983-03-01 1983-03-01 Polishing machine

Publications (3)

Publication Number Publication Date
EP0120577A2 true EP0120577A2 (fr) 1984-10-03
EP0120577A3 EP0120577A3 (en) 1985-09-18
EP0120577B1 EP0120577B1 (fr) 1988-01-07

Family

ID=10538818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84300915A Expired EP0120577B1 (fr) 1983-03-01 1984-02-14 Machine à polir

Country Status (5)

Country Link
EP (1) EP0120577B1 (fr)
JP (1) JPS59224253A (fr)
AT (1) ATE31657T1 (fr)
DE (1) DE3468356D1 (fr)
GB (1) GB8305667D0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037814A1 (fr) * 1996-04-09 1997-10-16 Allroundfinisher Kb Outil a meuler et polir, element meulant, et procede de production d'elements de meule pour un tel outil
JP2015136772A (ja) * 2014-01-23 2015-07-30 株式会社Ihi 研磨ロボットとその軌道生成方法
CN112872917A (zh) * 2021-01-08 2021-06-01 陈凤芝 一种5g天线精密打磨系统及打磨方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558300A (en) * 1946-03-18 1951-06-26 Frederic B Stevens Inc Apparatus for finishing surfaces
DE1246454B (de) * 1959-06-20 1967-08-03 Frederick William Armytage Maschine zum Feinschleifen fertiggeformter, stark profilierter Werkstuecke
US3121296A (en) * 1962-04-30 1964-02-18 Owens Illinois Glass Co Mold polishing machine
DE1910833C3 (de) * 1969-03-04 1973-10-18 Metabowerke Kg, Closs, Rauch & Schnizler, 7440 Nuertingen Poliermaschine
FR2312176A5 (fr) * 1973-04-13 1976-12-17 Pont A Mousson Machine pour le polissage des moules
FR2350924A1 (fr) * 1976-05-14 1977-12-09 Shc Machine pour le polissage de la surface interieure d'un moule

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037814A1 (fr) * 1996-04-09 1997-10-16 Allroundfinisher Kb Outil a meuler et polir, element meulant, et procede de production d'elements de meule pour un tel outil
JP2015136772A (ja) * 2014-01-23 2015-07-30 株式会社Ihi 研磨ロボットとその軌道生成方法
CN112872917A (zh) * 2021-01-08 2021-06-01 陈凤芝 一种5g天线精密打磨系统及打磨方法

Also Published As

Publication number Publication date
EP0120577A3 (en) 1985-09-18
DE3468356D1 (en) 1988-02-11
ATE31657T1 (de) 1988-01-15
JPS59224253A (ja) 1984-12-17
GB8305667D0 (en) 1983-03-30
EP0120577B1 (fr) 1988-01-07

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