GB1434726A - Apparatus for and method of determining rotational or linear stiffeness - Google Patents

Apparatus for and method of determining rotational or linear stiffeness

Info

Publication number
GB1434726A
GB1434726A GB2148072A GB2148072A GB1434726A GB 1434726 A GB1434726 A GB 1434726A GB 2148072 A GB2148072 A GB 2148072A GB 2148072 A GB2148072 A GB 2148072A GB 1434726 A GB1434726 A GB 1434726A
Authority
GB
United Kingdom
Prior art keywords
pulses
gradient
input
counter
register
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
Application number
GB2148072A
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.)
SPS Technologies LLC
Original Assignee
Standard Pressed Steel Co
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 Standard Pressed Steel Co filed Critical Standard Pressed Steel Co
Priority to GB2148072A priority Critical patent/GB1434726A/en
Priority to ZA00742550A priority patent/ZA742550B/en
Priority to ZA732939A priority patent/ZA732939B/en
Priority to AU55354/73A priority patent/AU484193B2/en
Priority to DE2323123A priority patent/DE2323123A1/en
Priority to CA170,642A priority patent/CA1002341A/en
Priority to DE2336896A priority patent/DE2336896C3/en
Priority to ES414515A priority patent/ES414515A1/en
Priority to FR7316428A priority patent/FR2184324A5/fr
Priority to SE7306458A priority patent/SE393455C/en
Priority to JP5083573A priority patent/JPS5535653B2/ja
Priority to IT49932/73A priority patent/IT1032021B/en
Priority to BR4946/73A priority patent/BR7304946D0/en
Priority to US05/507,417 priority patent/US3982419A/en
Priority to ES440520A priority patent/ES440520A1/en
Priority to CA239,858A priority patent/CA1026581A/en
Publication of GB1434726A publication Critical patent/GB1434726A/en
Priority to CA263,507A priority patent/CA1017970A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers
    • B25B23/1456—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers having electrical components
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces

Landscapes

  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

1434726 Driving screw fasteners STANDARD PRESSED STEEL CO 30 April 1973 [9 May 1972] 21480/72 Heading B3N [Also in Division G1] Apparatus for driving screwed fasteners comprises output means 2 for rotating a screw 1, driven input means 8, deflectable coupling means 11 for transmitting power from input to output, a first displacement encoder 9 producing pulses (# 1 ) corresponding to rotation of the input means 8, a second displacement encoder 6 producing pulses (# 2 ) corresponding to rotation of the output means 2 and comparator circuitry (Fig. 4) for determining the difference between the number of # 1 and # 2 pulses during a predetermined number of # 2 pulses, and means for stopping the drive or maintaining a constant torque when the difference has dropped to half its maximum value. The measured value is the gradient of the torque-angle curve dM/d# 2 and equals K(## 1 -## 2 )/(## 2 ). Pulses 91 are fed to an up input of counter 25 and pulses # 2 to a down input of counter 25 after a direction check at 28. This prevents measurement if encoder 6 is rotating backwards under the influence of driven member 1. Pulses # 2 also enable gate 29 which passes the content of counter 25 (0 or 1) to gradient register 26, to shift register 27 and to count down counter 25. Shift register 27 is clocked by pulses # 2 , its capacity the predetermined number of # 2 pulses and its output is fed to the gradient register 26. The value in gradient register 26 is the continuously updated torque gradient.
GB2148072A 1972-05-09 1972-05-09 Apparatus for and method of determining rotational or linear stiffeness Expired GB1434726A (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
GB2148072A GB1434726A (en) 1972-05-09 1972-05-09 Apparatus for and method of determining rotational or linear stiffeness
ZA00742550A ZA742550B (en) 1972-05-09 1973-05-01 Apparatus for and method of determining rotational or linear stiffness
ZA732939A ZA732939B (en) 1972-05-09 1973-05-01 Apparatus for and method of determining rotational or linear stiffness
AU55354/73A AU484193B2 (en) 1972-05-09 1973-05-07 Apparatus forand method of determining rotational or linear stiffness
SE7306458A SE393455C (en) 1972-05-09 1973-05-08 SET AND DEVICE FOR TIGHTENING A SCREW TAPE
CA170,642A CA1002341A (en) 1972-05-09 1973-05-08 Apparatus for and method of determining rotational or linear stiffness
DE2336896A DE2336896C3 (en) 1972-05-09 1973-05-08 Device with a measuring device for tightening a connection between components
ES414515A ES414515A1 (en) 1972-05-09 1973-05-08 Apparatus for and method of determining rotational or linear stiffeness
FR7316428A FR2184324A5 (en) 1972-05-09 1973-05-08
DE2323123A DE2323123A1 (en) 1972-05-09 1973-05-08 DEVICE AND METHOD FOR TIGHTENING A FASTENING ELEMENT WITH A STIFFNESS MEASURING DEVICE
JP5083573A JPS5535653B2 (en) 1972-05-09 1973-05-09
IT49932/73A IT1032021B (en) 1972-05-09 1973-05-14 EQUIPMENT AND METHOD FOR DETERMINING ROTATIONAL OR LINEAR RIGIDITY
BR4946/73A BR7304946D0 (en) 1972-05-09 1973-07-04 DEVICE AND METHOD FOR DETERMINING ROTATING OR LINEAR RIGIDITY
US05/507,417 US3982419A (en) 1972-05-09 1974-09-19 Apparatus for and method of determining rotational and linear stiffness
ES440520A ES440520A1 (en) 1972-05-09 1975-08-27 Apparatus for and method of determining rotational or linear stiffeness
CA239,858A CA1026581A (en) 1972-05-09 1975-11-18 Apparatus for and method of determining rotational stiffness
CA263,507A CA1017970A (en) 1972-05-09 1976-10-15 Stiffness meter using torque gradient signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2148072A GB1434726A (en) 1972-05-09 1972-05-09 Apparatus for and method of determining rotational or linear stiffeness

Publications (1)

Publication Number Publication Date
GB1434726A true GB1434726A (en) 1976-05-05

Family

ID=10163656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2148072A Expired GB1434726A (en) 1972-05-09 1972-05-09 Apparatus for and method of determining rotational or linear stiffeness

Country Status (10)

Country Link
JP (1) JPS5535653B2 (en)
BR (1) BR7304946D0 (en)
CA (1) CA1002341A (en)
DE (2) DE2323123A1 (en)
ES (2) ES414515A1 (en)
FR (1) FR2184324A5 (en)
GB (1) GB1434726A (en)
IT (1) IT1032021B (en)
SE (1) SE393455C (en)
ZA (2) ZA732939B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255866B (en) * 1991-05-14 1995-08-02 Rotork Controls An actuactor and an electric motor drive system

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114083A (en) * 1974-07-25 1976-02-04 Tokyo Boeki Kk SHIMETSUKETORUKUSOKUTEISOCHI
ES440899A1 (en) * 1974-09-19 1977-06-16 Standard Pressed Steel Co Apparatus for and method of determining rotational and linear stiffness
US3965778A (en) * 1974-09-19 1976-06-29 Standard Pressed Steel Co. Multi-stage tightening system
US3939920A (en) * 1974-09-19 1976-02-24 Standard Pressed Steel Co. Tightening method and system
US3974685A (en) * 1974-09-19 1976-08-17 Standard Pressed Steel Co. Tightening system and method
JPS5165499A (en) * 1974-12-04 1976-06-07 Hitachi Ltd
CA1077752A (en) * 1975-05-19 1980-05-20 John T. Boys Impact wrench with joint control
US3974883A (en) * 1975-05-19 1976-08-17 Standard Pressed Steel Co. Tightening system
DE2600940A1 (en) * 1976-01-13 1977-07-21 Standard Pressed Steel Co Tightening mechanism with quality control system - has regulator and monitor circuit controlling torque, speed and rate of change values
DE2600939C2 (en) * 1976-01-13 1990-01-25 SPS Technologies, Inc., Jenkintown, Pa. Circuit arrangement for a device for tightening a connection of components, in particular a screw connection
US4027530A (en) * 1976-03-31 1977-06-07 Standard Pressed Steel Co. Simplified apparatus for and method of tightening fasteners
US4023406A (en) * 1976-03-31 1977-05-17 Standard Pressed Steel Co. Tightening system with torque-time control
DE2627962C3 (en) * 1976-06-23 1979-08-02 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Screwdriver with a circuit arrangement, in particular for printing machines
US4106570A (en) * 1977-02-07 1978-08-15 Rockwell International Corporation Angle sensing tool for applying torque
ZA774188B (en) * 1976-08-09 1979-05-30 Rockwell International Corp Tension control of fasteners
BR7707762A (en) * 1976-11-22 1978-06-20 Atlas Copco Ab IMPROVEMENT IN PROCESS AND APPLIANCE TO PROTECT A THREADED JOINT TO PREDETERMINATE AXIAL LOAD
US4091451A (en) * 1977-04-26 1978-05-23 Weatherford/Lamb, Inc. Method of and apparatus for making up a threaded connection
JPS5574834U (en) * 1978-11-17 1980-05-23
JPS5740624A (en) * 1980-08-25 1982-03-06 Honda Motor Co Ltd Clamping torque detector for powered wrench
DE3324333C2 (en) * 1983-07-06 1987-11-12 Deutsche Gardner-Denver GmbH, 7084 Westhausen Method for monitoring an electronically controlled screwdriver
DE3422522A1 (en) * 1984-06-16 1985-12-19 Deutsche Gardner-Denver GmbH, 7084 Westhausen YIELD-CONTROLLED TIGHTENING METHOD FOR BOLTINGS
JPS62266231A (en) * 1986-05-12 1987-11-19 Toshiba Corp Torque control device
US8269612B2 (en) 2008-07-10 2012-09-18 Black & Decker Inc. Communication protocol for remotely controlled laser devices
US9908182B2 (en) 2012-01-30 2018-03-06 Black & Decker Inc. Remote programming of a power tool
US10011006B2 (en) 2013-08-08 2018-07-03 Black & Decker Inc. Fastener setting algorithm for drill driver
DE102017002440A1 (en) * 2017-03-13 2018-09-13 Liebherr-Components Biberach Gmbh Method and device for tightening screw connections
CN108534932B (en) * 2018-03-01 2024-09-03 广州华德汽车弹簧有限公司 Automobile stabilizer bar rubber vulcanization bush torque detection machine
CN112345362B (en) * 2020-12-24 2021-09-17 中南大学 Mechanical property tester for railway fastener
CN113237642A (en) * 2021-04-09 2021-08-10 南京航空航天大学 Double-torsion-spring fatigue test device and test method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703681C3 (en) * 1968-06-27 1973-11-29 Daimler-Benz Ag, 7000 Stuttgart Screwdriver for the automatic tightening of screws
US3643501A (en) * 1969-11-18 1972-02-22 Ingersoll Rand Co Wrenching system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255866B (en) * 1991-05-14 1995-08-02 Rotork Controls An actuactor and an electric motor drive system

Also Published As

Publication number Publication date
SE393455C (en) 1984-09-03
ES440520A1 (en) 1977-05-16
DE2336896B2 (en) 1978-02-16
ES414515A1 (en) 1976-05-01
JPS4970684A (en) 1974-07-09
AU5535473A (en) 1974-11-07
DE2336896C3 (en) 1978-09-21
JPS5535653B2 (en) 1980-09-16
FR2184324A5 (en) 1973-12-21
CA1002341A (en) 1976-12-28
BR7304946D0 (en) 1975-04-01
DE2336896A1 (en) 1974-01-03
ZA732939B (en) 1974-12-24
IT1032021B (en) 1979-05-30
DE2323123A1 (en) 1973-11-22
SE393455B (en) 1977-05-09
ZA742550B (en) 1975-02-26

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930429