US3404670A - Method of sharpening the grinding disc in a grinding machine - Google Patents

Method of sharpening the grinding disc in a grinding machine Download PDF

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Publication number
US3404670A
US3404670A US463939A US46393965A US3404670A US 3404670 A US3404670 A US 3404670A US 463939 A US463939 A US 463939A US 46393965 A US46393965 A US 46393965A US 3404670 A US3404670 A US 3404670A
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United States
Prior art keywords
grinding
sharpening
grinding disc
disc
dressing
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Expired - Lifetime
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US463939A
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English (en)
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Gluchowicz Gerszon
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Individual
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Individual
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    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/18—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the presence of dressing tools

Definitions

  • This invention relates to a method of sharpening the grinding disc in a grinding machine.
  • this invention relates to a method of sharpening the rotatable grinding disc in a grinding machine by means of a sharpening tool supported by a holder and usually containing a diamond tip.
  • This sharpening has for its object to restore with even intervals the form of the grinding surface of the grinding disc with the intention of removing the dull abrasive grains from its surface, and also to restore the generatrix of the grinding disc, which is in contact with the rotatable workpiece, to a predetermined position in the machine. After the sharpening operation the grinding disc is fed towards the workpiece until final dimension is obtained on the worked surface thereof.
  • the grinding disc or the workpiece is mounted on a transverse sliding carriage which is actuated by a feeding device transverse to the axis of rotation of said disc or said workpiece. After the grinding of a workpiece has been finished the transverse sliding carriage returns to a starting position. Before the grinding disc is subjected to a sharpening treatment it is reset relatively to the diamond in the transverse direction in such a manner that the diamond will cut off a certain layer of the grinding disc.
  • This complement in the resetting of the grinding disc which is also denominated compensation, means that the grinding disc is conducted past the diamond, as viewed radially, to an extent which is greater than the wear or abrasion which takes place between each sharpening operation.
  • the diamond in turn can be actuated so as to be caused to occupy an exact position within the machine, as shown, for example, in the US. Patent No. 3,003,293.
  • a further object of the invention is to provide a feeling or scanning member responsive to an actuation of the holder treated by the sharpening operation proper and adapted to produce a voltage which is dependent on the magnitude of the sharpening depth and which is utilized for reading the sharpening depth and/ or adjustment thereof to a desired value.
  • a still further object of the invention is to provide a 3,404,670 Patented Oct. 8, 1968 the dressing of a grinding disc may be sensed according to this invention.
  • the feeling or scanning member 10 may be a vibrationor wire-elongation pickup or the like, which is engaged with a dressing tool such as a conventional diamond holder 12, so that it develops an electronic potential as the result of the vibrations of the diamond holder.
  • the magnitude of the vibrations and that of the potential is proportional to the depth to which the tool 12 penetrates the surface of the grinding disc 14 during a dressing operation, and follows a curve which normally is not linear.
  • the diamond holder 12 which may have the form of an arm is thus subjected to oscillations having a frequency which is characteristic for the sharpening moment and does not appear anywhere else.
  • the oscillations correspond to the reasonant frequency or the frequency of impacts of the corns of the grinding disc against the diamond tip.
  • the output potential from the amplifier may in addition be coupled to two current relays 24 and 25, one of them being adapted to deliver a signal when the deflections are too small and the other to deliver a signal when the deflections are too great. These impulses may in turn actuate setting members 26 and 27 of the machine for control and adjusting of the magnitude of the complement or compensation.
  • the grinding disc may be worn too much due to a faulty workpiece requiring exceptional grinding increases. As a consequence thereof the grinding disc is not sharpened by the diamond and the plurality of subsequent workpieces is ground in a faulty manner. To avoid this inconvenience one may also utilize the minimum impulses to actuate the machine to repeat the sharpening step until a sufficient sharpening effect takes place whereupon the machine continues with its working cycle.
  • a method of dressing the grinding disc in a grinding machine by means of a dressing tool supported by a holder and preferably containing a diamond tip, said tool and said grinding disc prior to each grinding operation being reset in relationship to one another to a position in which a removal of disc material will take place, detecting the frequency of the vibration of the holder created by the dressing operation by means of a feeling member,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
US463939A 1964-07-08 1965-06-14 Method of sharpening the grinding disc in a grinding machine Expired - Lifetime US3404670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8347/64A SE308870B (enrdf_load_stackoverflow) 1964-07-08 1964-07-08

Publications (1)

Publication Number Publication Date
US3404670A true US3404670A (en) 1968-10-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
US463939A Expired - Lifetime US3404670A (en) 1964-07-08 1965-06-14 Method of sharpening the grinding disc in a grinding machine

Country Status (5)

Country Link
US (1) US3404670A (enrdf_load_stackoverflow)
CH (1) CH450206A (enrdf_load_stackoverflow)
DE (1) DE1302454B (enrdf_load_stackoverflow)
GB (1) GB1118145A (enrdf_load_stackoverflow)
SE (1) SE308870B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500811A (en) * 1966-08-26 1970-03-17 Gen Motors Corp Automatically controlled dressing apparatus for a grinding wheel
US3590799A (en) * 1968-09-03 1971-07-06 Gerszon Gluchowicz Method of dressing the grinding wheel in a grinding machine
US3641714A (en) * 1969-05-30 1972-02-15 Toyoda Machine Works Ltd Machine tool provided with apparatus for compensating the wear of grinding wheel
JPS58160762U (ja) * 1982-04-23 1983-10-26 光洋機械工業株式会社 研削盤におけるドレス用ダイヤモンドの切込み位置検出装置
US4461125A (en) * 1980-07-31 1984-07-24 Maag Gear-Wheel & Machine Company Limited Control circuit for an apparatus for adjusting and dressing a grinding wheel
CN102152238A (zh) * 2011-01-21 2011-08-17 厦门大学 一种超声振动在线砂轮修整的磨削加工方法及其装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329541A (en) * 1941-06-18 1943-09-14 Gen Electric Electric measuring apparatus
US2360639A (en) * 1941-10-21 1944-10-17 Carnegie Illinois Steel Corp Metalworking apparatus
US2408012A (en) * 1942-08-10 1946-09-24 Standard Oil Dev Co Well logging
US2498881A (en) * 1947-08-02 1950-02-28 Jones & Lamson Mach Co Load measuring system
US3003293A (en) * 1954-07-12 1961-10-10 Ulvsunda Verkst Er Aktiebolag Machine for grinding workpieces to narrow tolerances
US3116632A (en) * 1961-10-26 1964-01-07 Macklin Company Apparatus and method of grading grinding wheels in rotation
US3214965A (en) * 1962-05-31 1965-11-02 Abrasive Dressing Tool Company Inspecting abrasive grinding wheels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329541A (en) * 1941-06-18 1943-09-14 Gen Electric Electric measuring apparatus
US2360639A (en) * 1941-10-21 1944-10-17 Carnegie Illinois Steel Corp Metalworking apparatus
US2408012A (en) * 1942-08-10 1946-09-24 Standard Oil Dev Co Well logging
US2498881A (en) * 1947-08-02 1950-02-28 Jones & Lamson Mach Co Load measuring system
US3003293A (en) * 1954-07-12 1961-10-10 Ulvsunda Verkst Er Aktiebolag Machine for grinding workpieces to narrow tolerances
US3116632A (en) * 1961-10-26 1964-01-07 Macklin Company Apparatus and method of grading grinding wheels in rotation
US3214965A (en) * 1962-05-31 1965-11-02 Abrasive Dressing Tool Company Inspecting abrasive grinding wheels

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500811A (en) * 1966-08-26 1970-03-17 Gen Motors Corp Automatically controlled dressing apparatus for a grinding wheel
US3590799A (en) * 1968-09-03 1971-07-06 Gerszon Gluchowicz Method of dressing the grinding wheel in a grinding machine
US3641714A (en) * 1969-05-30 1972-02-15 Toyoda Machine Works Ltd Machine tool provided with apparatus for compensating the wear of grinding wheel
US4461125A (en) * 1980-07-31 1984-07-24 Maag Gear-Wheel & Machine Company Limited Control circuit for an apparatus for adjusting and dressing a grinding wheel
JPS58160762U (ja) * 1982-04-23 1983-10-26 光洋機械工業株式会社 研削盤におけるドレス用ダイヤモンドの切込み位置検出装置
CN102152238A (zh) * 2011-01-21 2011-08-17 厦门大学 一种超声振动在线砂轮修整的磨削加工方法及其装置
CN102152238B (zh) * 2011-01-21 2012-08-15 厦门大学 一种超声振动在线砂轮修整的磨削加工方法及其装置

Also Published As

Publication number Publication date
GB1118145A (en) 1968-06-26
CH450206A (de) 1968-01-15
DE1302454B (enrdf_load_stackoverflow)
SE308870B (enrdf_load_stackoverflow) 1969-02-24

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