US2033034A - Grinding and polishing device - Google Patents

Grinding and polishing device Download PDF

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Publication number
US2033034A
US2033034A US653154A US65315433A US2033034A US 2033034 A US2033034 A US 2033034A US 653154 A US653154 A US 653154A US 65315433 A US65315433 A US 65315433A US 2033034 A US2033034 A US 2033034A
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US
United States
Prior art keywords
grinding
tools
supporting element
polishing
tool
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
US653154A
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English (en)
Inventor
Knaff Albert
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
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Publication of US2033034A publication Critical patent/US2033034A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B24B41/047—Grinding heads for working on plane surfaces
    • B24B41/053—Grinding heads for working on plane surfaces for grinding or polishing glass
    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass

Definitions

  • the object .of the present invention is a device relating to grinding and polishing of flat surfaces, more especially in the manufacture of plate glass.
  • the grinding and polishing tools machine the surfaces to be ground and polished under a very low pressure-contrary to pressures hitherto customaryfurther, the grinding and polishing tools run at a high relative speed between tool and workpiece-contrary to speeds customary at present.
  • a certain number of these tools six for example, suitably grouped in a circle, are, either in their totality or singly, supported in bearings of vertical direction in which they rotate carefully balanced by means of counterweights or other suitable means, so as to permit the working pressure to be adjusted within the finest limits.
  • the supporting element of the device around which are fixed the rotating tools with their driving devices etc. is supported, at a portion above these parts, in a sleeve bearing of larger diameter within the fixed frame of the device and rotates within this sleeve bearing, preferably driven by means of a worm wheel, comparatively more slowly around the vertical axis.
  • the whole supporting element is at the same time arranged vertically slideable within the sleeve bearing and suspended with its upper extension from a bearing ring which is supported. by a balancing lever with counterweight.
  • Fig. 1 a side view of the device with portions shown in section.
  • Fig. 2 a section through a portion of the device below the sleeve bearing showing the top portion of the tools or their driving and supporting organs respectively.
  • the stationary girders I and 2 carry the supporting frame 3 of the device.
  • the supporting element 6 which carries the tools and their driving devices.
  • Said supporting element is driven by a worm wheel 1 which is driven in its turn by worm 8.
  • a ring I ll, fitted with ball bearing 9, is mounted to that end of said supporting element which protrudes from sleeve bearing 5.
  • Said ring III is suspended by means of suspension device II from a balancing lever I2.
  • the adjustable counterweight (not shown in the drawing) is fitted to the left end of said balancing lever which is articulated on the fixed member I3.
  • Worm wheel I which drives the supporting element is fixed to a cylindrical bush I4 connected slideable but not rotatory to the long journal of supporting element Ii.
  • Slide rings I6 for the electric current admission to the motors may be arranged at the upper end I5 of the rotatory bush I4.
  • Fig. 2 of the drawings shows clearly the arrangement of the various tools with their driving and suspension devices around the lower cylindrical portion of the supporting element.
  • motor housings H are fixed immediately to the supporting element 6 by means of bolts and lashes.
  • each motor carries at its lower end a grinding or polishing tool I9 respectively, whilst the upper end of said shaft is suspended from balancing lever 22 by means of ball race 2!] and suspension device 2
  • Said balancing lever is weighted at its outer free end by changeable weights 23.
  • Grinding substance may be admitted through hollow shafts I8. To prevent the danger of corrosion by grinding substance coming into direct contact with said shafts it is advisable to provide tube 24 made from special non-rusting material which is widened at its upper end to serve as funnel. Grinding substance is admitted from above through pipes 25. These pipes run through the hollow journal of supporting element 6 being connected with a distributing chamber 26 arranged at the uppermost portion of said supporting element. The distributing chamber is fed with grinding substance from above through a pipe of suitable diameter.
  • a device for grinding and polishing flat surfaces, more especially in the manufacture of plate glass including a frame mounted in a fixed position above the work, a support in the form of a. hollow tubular member mounted for rotatable and vertically slidable movement in the frame, a plurality of operating tools on the support, means for rotating the support with the tools thereon, means for adjusting the vertical position of the support as well as the tools, means for rotating the tools independently of the means for rotating the support including a stator, a rotor including a hollow shaft forming the spindle of the tool and vertically slidable relative to the stator, and means for individually adjusting the tools including a series of variable counterbalanced levers operably mounted on the support and operably connected to the upper ends of the shafts.
  • heads are fixed on the lower ends of the hollow shafts and together with the shafts form tools of relatively small weight to ensure of an easy movement of the tools in a vertical direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
US653154A 1932-01-23 1933-01-23 Grinding and polishing device Expired - Lifetime US2033034A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2033034X 1932-01-23
DES102899D DE655502C (de) 1932-01-23 1932-01-24 Vorrichtung zum Schleifen und Polieren ebener Flaechen, insbesondere von Spiegelglas

Publications (1)

Publication Number Publication Date
US2033034A true US2033034A (en) 1936-03-03

Family

ID=25998393

Family Applications (1)

Application Number Title Priority Date Filing Date
US653154A Expired - Lifetime US2033034A (en) 1932-01-23 1933-01-23 Grinding and polishing device

Country Status (3)

Country Link
US (1) US2033034A (US07534539-20090519-C00280.png)
BE (1) BE431049A (US07534539-20090519-C00280.png)
DE (1) DE655502C (US07534539-20090519-C00280.png)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874123A (en) * 1973-10-11 1975-04-01 Mwa Company Metal conditioning planetary grinder
US4018012A (en) * 1973-10-11 1977-04-19 Mwa Company Method of grinding metal billets, blooms or slabs
US4665658A (en) * 1984-05-21 1987-05-19 Commissariat A L'energie Atomique Double face abrading machine and device for transmitting current and fluid between a rotary structure and a non-rotary structure
US20150087205A1 (en) * 2013-09-24 2015-03-26 Stmicroelectronics, Inc. Adaptive uniform polishing system
CN113618620A (zh) * 2021-09-07 2021-11-09 玉溪精工数控机床有限公司 一种数控车床主轴箱铲刮面研磨专用工装

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048183B (de) * 1951-05-19 1958-12-31 Glaceries De La Sambre Sa Einrichtung zur Zufuehrung des Schleif- bzw. Poliermittels bei zweiseitig wirkenden Glasschleif- und bzw. oder Poliermaschinen
DE1216152B (de) * 1960-06-04 1966-05-05 Raymond Cherreau Maschine zum Schleifen bzw. Polieren der Oberflaechen von Natur- und Kunststeinplatten

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874123A (en) * 1973-10-11 1975-04-01 Mwa Company Metal conditioning planetary grinder
US4018012A (en) * 1973-10-11 1977-04-19 Mwa Company Method of grinding metal billets, blooms or slabs
US4665658A (en) * 1984-05-21 1987-05-19 Commissariat A L'energie Atomique Double face abrading machine and device for transmitting current and fluid between a rotary structure and a non-rotary structure
US20150087205A1 (en) * 2013-09-24 2015-03-26 Stmicroelectronics, Inc. Adaptive uniform polishing system
US9162339B2 (en) * 2013-09-24 2015-10-20 Stmicroelectronics, Inc. Adaptive uniform polishing system
CN113618620A (zh) * 2021-09-07 2021-11-09 玉溪精工数控机床有限公司 一种数控车床主轴箱铲刮面研磨专用工装

Also Published As

Publication number Publication date
DE655502C (de) 1938-01-17
BE431049A (US07534539-20090519-C00280.png)

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