GB2199958A - Apparatus for the testing of compression springs - Google Patents

Apparatus for the testing of compression springs Download PDF

Info

Publication number
GB2199958A
GB2199958A GB08729519A GB8729519A GB2199958A GB 2199958 A GB2199958 A GB 2199958A GB 08729519 A GB08729519 A GB 08729519A GB 8729519 A GB8729519 A GB 8729519A GB 2199958 A GB2199958 A GB 2199958A
Authority
GB
United Kingdom
Prior art keywords
spring
rest
testing
compression springs
slant
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
GB08729519A
Other versions
GB2199958B (en
GB8729519D0 (en
Inventor
Werner Banzaf
Dr Ewald Eblen
Karl Hofmann
Thomas Wittermann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB8729519D0 publication Critical patent/GB8729519D0/en
Publication of GB2199958A publication Critical patent/GB2199958A/en
Application granted granted Critical
Publication of GB2199958B publication Critical patent/GB2199958B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0288—Springs
    • G01N2203/0292—Coil spring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Packaging For Recording Disks (AREA)
  • Springs (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The apparatus for the testing of compression springs, in particular the slant of the ends of the spring, has two rests, (14, 25), which are spaced apart and arranged in a respective gimbal suspension 13, 15 and 21, 22, between which rests a compression spring 20 can be restrained. The shafts of the gimbal suspension are equipped with angular resolvers (17,18; 23, 24), which transfer the slant of the rests (14, 25), due to slanted ends of the spring, to a computer for evaluation. In this way, the slant of the ends of the spring can be measured quickly, accurately and objectively with and without load.

Description

Apparatus for the testing of compression springs Prior art The invention is based on an apparatus for the testing of compression springs. Previously, the slant of the ends of the spring has been tested in the untensioned state by mechanical and optical methods. No statement on the slanting behaviour of the spring under load is possible.
Advantages of the invention In comparison, the apparatus for the testing of compression springs according to the invention and having the characterizing features has the advantage that a quick, accurate and objective measurement of the slant of the ends of the spring is possible in the tensioned and in the untens ioned state.
Advantageous developments of the invention emerge from the subclaims.
Drawing An exemplary embodiment of the invention is explained in the following description and illustrated in the drawing, in which Figure 1 shows, in simplified representation, a view of a spring testing apparatus, Figure 2 shows a perspective view of the gimbal suspension, Figures 3 and 4 show a side view and plan view, respectively, of a component part.
Description of the exemplary embodiment The apparatus has a base plate 10, which is connecte-d via several vertical columns 11 to a yoke plate 12.
A support frame 13 is arranged vertically displaceably on the base plate 10. A rest 14 is mounted in a gimbal bearing on the support frame, to be precise it is mounted in a coupling cross 15, the two intersecting shafts of which 15A and 15B are mounted in the support frame 13. The shaft 15A receives an angular resolver 17, while the shaft 158, which receives the rest 14, is provided with an angular resolver 18. The lower end of a compression spring 20 (test piece) lies on the rest 14.
The upper gimbal suspension is of an identical design. It is located in a support frame 21, which is arranged displaceably in the yoke plate 12 and has the test load applied to it. The gimbal suspension has a coupling cross 22 with the two intersecting shafts 22A and 22B, on each of which an angular resolver 23, 24 is arranged. The shaft 228 is rotatably connected to the upper rest. The upper end of the compression spring 20 lies against the upper rest 25.
For precise positioning of the spring to be tested, adjustable jaws 26 are arranged on the rests 14, 15 - the rest 14 is illustrated in Figures 3 and 4. The slant of the ends of the compression spring 20 is transferred to the plates 14, 25. The corresponding turning of the rests 14, 25 - if the ends of the spring are slanted - is transferred by the angular resolver 13, 18 to a computer and evaluated. The support frame 13 is vertically adjustable to compensate for the lengths of different springs.
The apparatus described can be used to test both ends of a spring simultaneously for their slant. Furthermore, a measurement of deviations from cylindrical shape is possible. The measurement plane is in each case in the centre of the bearing. The evaluation of the deviation in magnitude and direction is performed by computer.
The masses of the rests 14, 25 in the measuring range have been balanced, so there are consequently no falsifications of the values measured. A blocking mechanism for the lower support frame 13 is expedient.

Claims (7)

Claims
1. Apparatus for the testing of compression springs, in particular the slant of the ends of the spring with and without load, characterized in that each of the two ends of the spring lie against a rest (14, 25) mounted in a gimbal bearing, and in that an angular resolver (17, 18; 23, 24) is arranged at each gimbal joint, the measured values of which resolvers are evaluated in a com-puter.
Apparatus according to Claim 1, characterized in that the support frame (13) receiving the one (lower) rest (14) is vertically adjustable.
3. Apparatus according to Claim 1 and/or 2, characterized in that the support frame (21) receiving the other rest (25) can be displaced by the test load.
4. Apparatus according to one of Claims 1 to 3, characterized in th-at the apparatus has two opposite base plates (10, 12), which are interconnected by columns (11).
5. Apparatus according to one of Claims 1 to 4, characterized in that adjustable centering jaws (26) are arranged at the rests (14, 25).
6. Apparatus according to Claims 1 to 5, characterized in that the lower rest (14) can be fixed in exactly horizontal position.
7. An apparatus for testing compression springs substantially as herein described with reference to the accompanying drawings.
GB8729519A 1987-01-16 1987-12-18 An apparatus for testing coil compression springs Expired - Lifetime GB2199958B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8700712U DE8700712U1 (en) 1987-01-16 1987-01-16 Device for testing compression springs
DE19873701100 DE3701100A1 (en) 1987-01-16 1987-01-16 DEVICE FOR TESTING PRESSURE SPRINGS

Publications (3)

Publication Number Publication Date
GB8729519D0 GB8729519D0 (en) 1988-02-03
GB2199958A true GB2199958A (en) 1988-07-20
GB2199958B GB2199958B (en) 1990-11-14

Family

ID=39327299

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8729519A Expired - Lifetime GB2199958B (en) 1987-01-16 1987-12-18 An apparatus for testing coil compression springs

Country Status (5)

Country Link
JP (1) JPS63182542A (en)
DE (2) DE8700712U1 (en)
FR (1) FR2609803B1 (en)
GB (1) GB2199958B (en)
NL (1) NL8700373A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361774A (en) * 2000-04-12 2001-10-31 Brovig Rds Ltd A testing apparatus and method
US8151638B2 (en) 2008-12-07 2012-04-10 Robert Bosch Gmbh Spring force component tester
CN102928159A (en) * 2012-10-24 2013-02-13 昌辉汽车电器（黄山）股份公司 Pressure spring balance degree testing device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122797B4 (en) * 2001-05-11 2012-01-05 Audi Ag Device for testing a component
JP3710432B2 (en) * 2001-05-15 2005-10-26 日章電機株式会社 Compression spring characteristic testing method and apparatus
CN104101535A (en) * 2013-04-12 2014-10-15 深圳市海洋王照明工程有限公司 Spring strength fatigue test device
CN103543006A (en) * 2013-10-24 2014-01-29 山东华力电机集团股份有限公司 Wave spring pre-pressure testing device
CN104764379B (en) * 2015-04-14 2018-04-27 浙江美力科技股份有限公司 Helical spring number of turns detection device
CN110514427B (en) * 2019-09-23 2020-12-08 嘉兴市光炬五金科技有限公司 Elasticity performance check out test set of spring production and processing usefulness

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032108A (en) * 1978-09-23 1980-04-30 Malak S Shaft aligner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585960A (en) * 1946-01-05 1952-02-19 John A Nodson Method and apparatus for testing springs
DE857692C (en) * 1950-07-19 1952-12-01 Bosch Gmbh Robert Device for checking the angle between the end face and the axis of a helical compression spring
US3675479A (en) * 1970-09-10 1972-07-11 Harold C R Carlson Spring tester
DE2118357A1 (en) * 1971-04-15 1972-10-26 Probat-Werke Von Gimborn & Co Kg, 4240 Emmerich Adjustable pressure transducer for spring testing machines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032108A (en) * 1978-09-23 1980-04-30 Malak S Shaft aligner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361774A (en) * 2000-04-12 2001-10-31 Brovig Rds Ltd A testing apparatus and method
US8151638B2 (en) 2008-12-07 2012-04-10 Robert Bosch Gmbh Spring force component tester
CN102928159A (en) * 2012-10-24 2013-02-13 昌辉汽车电器（黄山）股份公司 Pressure spring balance degree testing device
CN102928159B (en) * 2012-10-24 2015-07-08 昌辉汽车电器（黄山）股份公司 Pressure spring balance degree testing device

Also Published As

Publication number Publication date
DE8700712U1 (en) 1988-05-11
FR2609803B1 (en) 1990-10-19
DE3701100A1 (en) 1988-07-28
FR2609803A1 (en) 1988-07-22
GB2199958B (en) 1990-11-14
GB8729519D0 (en) 1988-02-03
NL8700373A (en) 1988-09-16
JPS63182542A (en) 1988-07-27

Similar Documents

Publication Publication Date Title
DE602004004189T2 (en) Apparatus and method for holding and transporting thin and opaque panels
CN106289710B (en) Aerofoil profile model dynamometric system
CN101101248B (en) Adjustable clamping device of minisize torsional rod rigidity test
US20120297898A1 (en) Deformation testing device
JPS6329209B2 (en)
KR101695324B1 (en) Measure Apparatus For Safety Check-Up Of Bridge
JP3556663B2 (en) Dimension inspection equipment for machine parts
GB2199958A (en) Apparatus for the testing of compression springs
KR101873265B1 (en) Self Centering Shape Checker For Stabilizer-Bar
US4523384A (en) Method and apparatus for measuring deviations in vehicle bodies or frames
US20130036801A1 (en) Apparatus and method for measuring moment of inertia
US3135106A (en) Static-dynamic fatigue-creep testing apparatus
US3122840A (en) Precision leveling device
CN112240812B (en) Residual stress testing device
JPS588459B2 (en) Cleanliness balance measuring device
US3388589A (en) Method and apparatus for determining the center of gravity
EP0276900B1 (en) Apparatus and method for aligning two surfaces
US3675464A (en) Portable testing and checking apparatus with adjustable mounts
CN114286615A (en) Unmanned aerial vehicle SMT circuit board intelligent test device
US3040435A (en) Testing machines
GB2129131A (en) Caliper gauge
RU2767804C1 (en) Optical stand
JPH11295023A (en) Assembly precision inspection method for car sub-frame and dummy-suspension arm used for performing the method
SU974164A2 (en) Stand for demonstrating friction forces in threaded joint
US3831441A (en) Load cell

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931218