GB1402388A – Methods and apparatus for removing material from workpieces
– Google Patents
GB1402388A – Methods and apparatus for removing material from workpieces
– Google Patents
Methods and apparatus for removing material from workpieces
Info
Publication number
GB1402388A
GB1402388A
GB4392473A
GB4392473A
GB1402388A
GB 1402388 A
GB1402388 A
GB 1402388A
GB 4392473 A
GB4392473 A
GB 4392473A
GB 4392473 A
GB4392473 A
GB 4392473A
GB 1402388 A
GB1402388 A
GB 1402388A
Authority
GB
United Kingdom
Prior art keywords
voltage
terminal
amplifier
transducer
workpiece
Prior art date
1972-12-04
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
Application number
GB4392473A
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.)
Gebr Hofmann GmbH and Co KG Maschinenfabrik
Original Assignee
Gebr Hofmann GmbH and Co KG Maschinenfabrik
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.)
1972-12-04
Filing date
1973-09-19
Publication date
1975-08-06
1972-12-04
Priority claimed from DE19722259268
external-priority
patent/DE2259268C3/en
1973-09-19
Application filed by Gebr Hofmann GmbH and Co KG Maschinenfabrik
filed
Critical
Gebr Hofmann GmbH and Co KG Maschinenfabrik
1975-08-06
Publication of GB1402388A
publication
Critical
patent/GB1402388A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
G01M1/00—Testing static or dynamic balance of machines or structures
G01M1/30—Compensating unbalance
G01M1/34—Compensating unbalance by removing material from the body to be tested, e.g. from the tread of tyres
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
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T408/00—Cutting by use of rotating axially moving tool
Y10T408/03—Processes
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T408/00—Cutting by use of rotating axially moving tool
Y10T408/05—Cutting by use of rotating axially moving tool with means to weigh or test work or product
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T408/00—Cutting by use of rotating axially moving tool
Y10T408/21—Cutting by use of rotating axially moving tool with signal, indicator, illuminator or optical means
Abstract
1402388 Balancing by machining HOFMANN GmbH Gebr [trading as HOFMANN KG Gebr] 19 Sept 1973 [4 Dec 1972] 43924/73 Heading B3B In a method of balancing a workpiece by drilling or milling the workpiece, the depth of cut is sensed by a transducer 12 and a voltage signal is fed to a circuit 13, which latter takes into account the taper at the tip of the drill 7. A voltage signal is also supplied by the transducer 12 through a relay contact 16 to a differential amplifier 18, the output 19 of which provides a voltage proportional to the drilling depth, this output being connected to the second terminal of amplifier 18 and also to a terminal of a differential amplifier 20. Voltage is applied to the other input terminal of amplifier 20 by transducer 12 via a resistor 21. Amplifier 20 subtracts the voltage at its second input from that at its first input so that whilst contact 16 is closed the voltage at terminal 25 is zero. If the drill point passes through the workpiece 1, the pressure on a sensing pin 6 causes the latter to be depressed and a switch 34 is opened. This causes relay 35 to be released and contact 16 is opened. The drill passing through the workpiece increases the voltage at transducer 12 and therefore at the output terminal 25 of amplifier 20, and this voltage is applied to a circuit 26, the output 27 of which is subtracted in a differential amplifier 28 from the voltage at terminal 15, so that the voltage which is proportional to the amount of material removed is produced at terminal 33 which is connected to a display.
GB4392473A
1972-12-04
1973-09-19
Methods and apparatus for removing material from workpieces
Expired
GB1402388A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19722259268
DE2259268C3
(en)
1972-12-04
Device for displaying the amount of material removed from workpieces by drilling or milling, in particular for balancing out unbalance
Publications (1)
Publication Number
Publication Date
GB1402388A
true
GB1402388A
(en)
1975-08-06
Family
ID=5863445
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4392473A
Expired
GB1402388A
(en)
1972-12-04
1973-09-19
Methods and apparatus for removing material from workpieces
Country Status (6)
Country
Link
US
(1)
US3861817A
(en)
JP
(1)
JPS5336632B2
(en)
ES
(1)
ES419229A1
(en)
FR
(1)
FR2208759B1
(en)
GB
(1)
GB1402388A
(en)
IT
(1)
IT1002098B
(en)
Families Citing this family (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2632481C3
(en)
*
1976-07-19
1981-03-12
Sprimag Spritzmaschinenbau-Gesellschaft Mbh, 7312 Kirchheim
Machine for making center holes in the ends of bar material
JPS58191912U
(en)
*
1982-06-14
1983-12-20
株式会社島津製作所
Unbalance correction device
MX156817A
(en)
*
1982-08-09
1988-10-05
Dana Corp
FORK IMPROVEMENTS FOR UNIVERSAL AUTOMOBILE TRANSMISSION BOARD
DE3662466D1
(en)
*
1986-11-26
1989-04-20
Gfm Fertigungstechnik
Method and machine for equilibratingly centering work pieces to be partially cutting-machined, especially crankshafts
US4820092A
(en)
*
1987-11-04
1989-04-11
American Hofmann Corporation
Touch sensing method and apparatus
FR2659718B1
(en)
*
1990-03-13
1992-05-22
J2T Video Tonnerre Sa
BELL CAME THAT CAN TURN AT HIGH SPEED.
US6371701B1
(en)
*
2000-03-07
2002-04-16
The Boeing Company
Apparatus having a controllable dwell and associated method
CN102656436B
(en)
*
2009-10-02
2014-11-12
弗兰茨海莫机械制造两合公司
Spindle clamping
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3302491A
(en)
*
1964-10-16
1967-02-07
Stewart Warner Corp
Automatic unbalance location and balance apparatus
DE1573645A1
(en)
*
1965-08-12
1970-12-23
Losenhausen Maschb Ag
Device for automatic compensation of an imbalance
1973
1973-09-19
GB
GB4392473A
patent/GB1402388A/en
not_active
Expired
1973-10-02
ES
ES419229A
patent/ES419229A1/en
not_active
Expired
1973-10-05
US
US403856A
patent/US3861817A/en
not_active
Expired – Lifetime
1973-11-29
IT
IT31897/73A
patent/IT1002098B/en
active
1973-12-01
JP
JP13729673A
patent/JPS5336632B2/ja
not_active
Expired
1973-12-03
FR
FR7342968A
patent/FR2208759B1/fr
not_active
Expired
Also Published As
Publication number
Publication date
FR2208759B1
(en)
1976-06-25
IT1002098B
(en)
1976-05-20
ES419229A1
(en)
1977-03-01
DE2259268B2
(en)
1977-06-16
DE2259268A1
(en)
1974-06-20
FR2208759A1
(en)
1974-06-28
JPS4986982A
(en)
1974-08-20
US3861817A
(en)
1975-01-21
JPS5336632B2
(en)
1978-10-04
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Legal Events
Date
Code
Title
Description
1975-12-17
PS
Patent sealed [section 19, patents act 1949]
1979-04-19
PCNP
Patent ceased through non-payment of renewal fee
