CN102419225B - Elasticity detection device for plate spring and method for detecting plate spring by using same - Google Patents
Elasticity detection device for plate spring and method for detecting plate spring by using same Download PDFInfo
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- CN102419225B CN102419225B CN2011102429624A CN201110242962A CN102419225B CN 102419225 B CN102419225 B CN 102419225B CN 2011102429624 A CN2011102429624 A CN 2011102429624A CN 201110242962 A CN201110242962 A CN 201110242962A CN 102419225 B CN102419225 B CN 102419225B
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Abstract
The invention discloses an elasticity detection device for a plate spring and a method for detecting the plate spring by using the same. The elasticity detection device comprises a plate spring base and a power applying device, wherein the power applying device comprises a guide mechanism, a push rod base is assembled horizontally on the guide mechanism in a movable manner, a push rod is assembled on the push rod base in a guided and movable manner, an elastic piece is arranged between the push rod base and the push rod, and a contact end is arranged at the front part of the push rod. In measurement, one end of the plate spring is fixed on the plate spring base, and the free end of the plate spring is dead against the contact end of the push rod; the push rod base is pushed to drive the push rod to move forward, so that the contact end of the push rod presses the free end of the plate spring to swing forward and the elastic piece between the push rod and the push rod base generates elastic deformation; when the free end of the plate spring swings forward to reach the elastic deformation required in the plate spring detection, the elastic deformation of the elastic piece is compared with a preset standard range; the plate spring is qualified if the elastic deformation of the elastic piece is in the preset standard range; otherwise, the plate spring is unqualified.
Description
Technical field
The invention belongs to elasticity of plate spring detection technique field, be specifically related to a kind of detection device for elasticity of plate spring, the invention still further relates to a kind of detection method of using this device to detect leaf spring simultaneously.
Background technology
In high voltage electric appliance, it is very many that the small-sized leaf spring as shown in Figure 1 of various models is used at present.Leaf spring is converted to Afterburning condition B by state of nature A after pressurized, the distortion size H of distance for requiring between the free end D of leaf spring when Afterburning condition B and datum line C, qualified leaf spring requires to possess elastic force F when the distortion size reaches H, and when the distortion size reaches H the elastic force of leaf spring over or be less than F and be defective spring.Consider the impacts such as mismachining tolerance, the corresponding scope of elastic force F, the leaf spring that the elastic force of leaf spring drops in scope when the distortion size reaches H like this is just qualified, and no person is just defective.
Because the use amount of leaf spring is very large, detect frequency very high, Detection task is also comparatively heavy, and adopt existing spring force measuring machine measurement to take the plenty of time of spring force measuring machine, affect the normal detection of other elastic components, low load with strong power causes unnecessary waste, therefore, needs a kind of pick-up unit of being convenient to leaf spring is carried out the elastic force detection simple in structure of design.
Summary of the invention
The object of the present invention is to provide a kind of detection device for elasticity of plate spring simple in structure, to solve in prior art, use the spring test machine to detect leaf spring and affect the normal technical matters detected of other elastic components; The present invention simultaneously also provides a kind of and uses above-mentioned pick-up unit to detect the whether qualified detection method of leaf spring.
For achieving the above object, detection device for elasticity of plate spring provided by the present invention adopts following technical scheme: a kind of detection device for elasticity of plate spring, comprise for fixing leaf spring one end and make the leaf spring other end be free-ended spring block and for the free end application of force to leaf spring so that leaf spring produces the force application apparatus of elastic deformation, force application apparatus comprises guiding mechanism, move and be equipped with tip-lever support along fore-and-aft direction on guiding mechanism, described spring block is positioned at force application apparatus the place ahead, be equipped with push rod along the fore-and-aft direction guiding movement on tip-lever support, be provided with the elastic component that applies acting force forward when tip-lever support moves forward to push rod between tip-lever support and push rod, the push rod front portion has when driving push rod at tip-lever support and travel forward top and is pressed in the leaf spring free end and oppresses the contact end that leaf spring produces the elastic deformation that the leaf spring free end swings forward.
Described detection device for elasticity of plate spring also comprise at push rod compressing leaf spring free end so that leaf spring shows the elastic deformation amount's of leaf spring elastic deformation amount and described elastic component indicating device while producing elastic deformation.
Described push rod guiding movement is assemblied in the pilot hole offered on tip-lever support, along fore-and-aft direction, the front end face by tip-lever support extends back pilot hole, described elastic component is the stage clip be sleeved on push rod, at the bottom of the rear end of stage clip withstands on the hole of pilot hole, its front end withstands on the spring base be convexly equipped with on push rod, the place, front end aperture of described pilot hole is provided with internal thread, at the place, aperture of pilot hole, thread connection has locating sleeve, and the rear end face of locating sleeve coordinates with the front end face thrust of spring base.
Described force application apparatus comprises base, described guiding mechanism is fixedly installed on base, at the rear portion of base, be provided with for promoting tip-lever support handle to front slide on guiding mechanism, one end of handle is that the hinged end, the other end that are hinged on base are the operating side that operating grip rotates around hinged end, and handle is in transmission connection by a drive link and tip-lever support.
Described indicating device comprises that the contact end that is used to indicate push rod be installed on push rod moves forward the first pointer of position and is used to indicate second pointer of push rod with respect to the displacement of tip-lever support.
Described the first pointer is installed in the front portion that passes tip-lever support of push rod, desired elastic deformation amount when the distance of the indication end face of the first pointer and the contact end of push rod equals to detect leaf spring, and described the second pointer is installed in the rear end that passes tip-lever support of push rod.
Described spring block is along perpendicular to the guide direction of fore-and-aft direction, extending and be installed on described base, on spring block, be provided with for the fixing register pin of leaf spring one end, on spring block, also be provided with for indicating the backing pin of leaf spring datum line, this leaf spring datum line is for reaching testing requirement with the corresponding cooperation of the first pointer indication end face to mean the leaf spring elastic deformation amount.
The detection method that use above-mentioned detection device provided by the present invention detects leaf spring adopts following technical scheme: a kind of detection method of using detection device for elasticity of plate spring to detect leaf spring, at first, leaf spring one end is fixed on the spring block of pick-up unit, and making the leaf spring other end is free end, described pick-up unit also comprises for the free end application of force to leaf spring so that leaf spring produces the force application apparatus of elastic deformation, force application apparatus comprises guiding mechanism, move and be equipped with tip-lever support along fore-and-aft direction on guiding mechanism, described spring block is positioned at force application apparatus the place ahead, be equipped with push rod along the fore-and-aft direction guiding movement on tip-lever support, be provided with the elastic component that applies acting force forward when tip-lever support moves forward to push rod between tip-lever support and push rod, the push rod front portion has when driving push rod at tip-lever support and travel forward top and is pressed in the leaf spring free end and oppresses the contact end that leaf spring produces the elastic deformation that the leaf spring free end swings forward, and make the contact end of the free end of leaf spring over against push rod,
Then, promote tip-lever support drive push rod and move forward, the contact end compressing leaf spring free end of push rod swings forward, and the elastic component between push rod and tip-lever support produces elastic deformation;
Finally, when the leaf spring free end is rocked to forward when the leaf spring elastic deformation amount reaches the detection leaf spring elastic deformation amount who requires in advance, record the elastic deformation amount of elastic component, the elastic deformation amount of elastic component and preset standard scope are compared, the elastic deformation amount of elastic component is positioned within the preset standard scope, leaf spring is qualified, otherwise leaf spring is defective.
The pick-up unit that described detection method is used also comprise at push rod compressing leaf spring free end so that leaf spring shows the elastic deformation amount's of leaf spring elastic deformation amount and described elastic component indicating device while producing elastic deformation, when indicating device shows that the leaf spring deflection reaches the leaf spring testing requirement, the elastic deformation amount of the elastic component now, shown by indicating device is the desired elastic deformation amount for comparing with the preset standard scope.
Described preset standard scope obtains by described pick-up unit, when at first with maximum elastic force in the leaf spring claimed range, promoting push rod and slide backwards on the front and back stress balance of push rod with respect to tip-lever support, the decrement of elastic component is maximum deformation quantity, then promote push rod with respect to tip-lever support during backward to the front and back stress balance of push rod with minimum elastic force in the leaf spring claimed range, the decrement of elastic component is least amount of deformation, and described maximum deformation quantity and least amount of deformation form the preset standard scope.
The invention has the beneficial effects as follows: detection device for elasticity of plate spring provided by the present invention comprises spring block and force application apparatus, spring block is positioned at the place ahead of force application apparatus, the mobile tip-lever support that is equipped with on the guiding mechanism of force application apparatus, on tip-lever support, guiding movement is equipped with push rod, and is provided for applying to push rod the elastic component of acting force forward between tip-lever support and push rod.During use, leaf spring is fixed on spring block, and by the free end of leaf spring over against the push rod contact end, promoting tip-lever support drive push rod moves forward, the contact end compressing leaf spring free end of push rod swings forward, elastic component between push rod and tip-lever support produces elastic deformation, , when the leaf spring free end is rocked to forward the leaf spring elastic deformation amount and reaches while detecting leaf spring desired elastic deformation amount, the elastic deformation amount of elastic component and preset standard scope are compared, the elastic deformation amount of elastic component is positioned within the preset standard scope, leaf spring is qualified, otherwise, leaf spring is defective.Leaf spring pick-up unit provided by the present invention utilizes the relative movement distance between push rod and tip-lever support to judge that whether the elastic force of leaf spring to be measured when producing elastic deformation H is qualified when push rod slides into desired location forward.Leaf spring pick-up unit one-piece construction provided by the present invention is simple, easy to use, effectively raises the measurement efficiency of leaf spring, does not need to re-use spring force measuring machine and the detection that affects other elastic components.
The accompanying drawing explanation
Fig. 1 is plate spring structure schematic diagram to be detected;
Fig. 2 is the structural representation of detection device for elasticity of plate spring provided by the present invention;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the structural representation of base in Fig. 2;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the structural representation of tip-lever support in Fig. 2;
Fig. 7 is the left side view of Fig. 6;
(in figure, double dot dash line is partly leaf spring 300 to be measured).
Embodiment
As shown in Figures 2 to 7, a kind of embodiment of detection device for elasticity of plate spring, the pick-up unit that provided in the present embodiment comprises for fixing leaf spring 300 1 ends and to make the leaf spring other end be free-ended spring block 12 and for the force application apparatus 200 of test board spring force, force application apparatus 200 comprises base 1, be provided with guiding mechanism on base 1, move and be equipped with tip-lever support 6 along fore-and-aft direction on guiding mechanism, described spring block 12 is positioned at the place ahead of force application apparatus 200, spring block 12 is along perpendicular to the guide direction of fore-and-aft direction, extending and be installed on base 1, on spring block 12, be provided with for the fixing register pin 9 of leaf spring one end, on spring block 12, also be provided with for indicating the leaf spring datum line to prevent the excessive backing pin of leaf spring elastic deformation 10 on spring block, during measurement, by register pin 9, an end of leaf spring is fixed on spring block, and the other end is kept freely.Described force application apparatus 200 is by base 1, tip-lever support 6, push rod 5, elastic component, indicating device forms, wherein, be provided with guiding mechanism on base 1, this guiding mechanism is the chute extended along fore-and-aft direction on base, tip-lever support 6 reciprocatingly slides and is assemblied in chute, be provided with at the rear portion of base 1 and be convenient to the handle 14 that manual operation reciprocatingly slides in chute with the push-and-pull tip-lever support, handle 14 swings along camber line C, be provided with the pilot hole extended along fore-and-aft direction on tip-lever support 6, pilot hole is extended back by the front end face of tip-lever support, described push rod 5 is slidedly assemblied in pilot hole 60, this pilot hole is shoulder hole, the rear end of push rod passes tip-lever support through the miner diameter end of shoulder hole, the front end of push rod passes tip-lever support through the bigger diameter end of shoulder hole, be set with the stage clip 4 as elastic component on the bar section that is arranged in pilot hole of push rod, the top, rear end of stage clip 4 is pressed on the cascaded surface of shoulder hole, its front end top is pressed on the spring base be convexly equipped with on push rod, for the elastic force that guarantees stage clip and prevent that push rod from ejecting pilot hole under the stage clip effect, place, front end aperture at pilot hole is installed with locating sleeve 7, place, front end aperture at pilot hole is provided with internal thread, locating sleeve is fixed on tip-lever support by thread connection, under the effect of stage clip, the front end face of the spring base of push rod coordinates with the rear end face thrust of locating sleeve, the front end that passes tip-lever support of push rod is the contact end 51 of the free end generation elastic deformation for oppressing leaf spring, described detection device for elasticity of plate spring also comprise at push rod compressing leaf spring free end so that leaf spring shows the elastic deformation amount's of leaf spring elastic deformation amount and described elastic component indicating device while producing elastic deformation, indicating device comprises that the contact end that is used to indicate push rod be installed on push rod 5 moves forward the first pointer 11 of position and is used to indicate second pointer 3 of push rod with respect to the displacement of tip-lever support, the second pointer 3 is fixedly installed on the push rod rear end, form indicating device by the first pointer 11 and the second pointer 3 in the present embodiment, distance between the indication end 600 of the first pointer 11 and the contact end 51 of push rod equals the elastic deformation size H of the leaf spring to be measured of requirement, thimble 5 drives the first pointer 11 and travels forward, when the indication end of the first pointer 11 slides into the position at groove 400 places that the leaf spring datum line that indicates on spring block is corresponding, now think that the contact end of push rod slides into forward desired location, now, leaf spring to be measured produces elastic deformation size H.
Use above-mentioned detection device for elasticity to measure the detection method of leaf spring, at first the fixed mandril seat 6, promoting push rod 5 with maximum elastic force in leaf spring claimed range to be measured slides backward, stage clip is pressed to push rod and is applied acting force forward, when push rod 5 front and back stress balance, now stage clip reaches maximum deformation quantity, the second pointer 3 indicates the second groove 1-2 on tip-lever support, then promoting push rod with minimum elastic force in leaf spring claimed range to be measured slides backward, stage clip is pressed to push rod and is applied acting force forward, when the stress balance of push rod front and back, now stage clip reaches least amount of deformation, the second pointer indicates the first groove 1-1 on tip-lever support, the first groove 1-1 and the second groove 1-2 form a scope, this scope is for the preset standard scope as standard, this scope corresponding elastic force scope of leaf spring when elastic deformation size when qualified leaf spring reaches H is corresponding.One end of leaf spring 300 is fixed on spring block, the other end of leaf spring is free end, operating grip 14 promotes tip-lever support to front slide, tip-lever support drives push rod to front slide by stage clip, contact end 51 tops of push rod are pressed on the free end of leaf spring, tip-lever support continues to front slide, the contact end compressing leaf spring free end of push rod, leaf spring produces elastic deformation, leaf spring produces reaction force acts on push rod because of elastic deformation, make push rod and tip-lever support produce relative sliding, the stage clip compressive deformation, make the front and back stress balance of push rod, because the distance between the contact end of the indication end 600 of the first pointer and push rod equals the elastic deformation size H of leaf spring to be measured, when push rod drives the first pointer 11 and slides into the groove 400 corresponding position on spring block, the contact end pressuring spring of push rod produces the elastic deformation that elastic deformation is of a size of H, the corresponding position of the contact end of push rod is predeterminated position, now, the second pointer that means the relative sliding distance of tip-lever support and push rod indicates test groove 500 on tip-lever support, in the time of within the scope of this test groove between the second groove and the first groove, leaf spring is qualified, and outside the test scope of groove between the second groove and the first groove the time, leaf spring is defective.
Chute in the present embodiment consists of base 1 and two boundary plates 20 of extending along fore-and-aft direction that are fixed on base, because leaf spring number to be measured is more, and each measurement all needs tip-lever support is pushed away forward, after measurement completes, tip-lever support is retracted, so just make tip-lever support to reciprocatingly slide in chute, for preventing tip-lever support, in sliding process, from chute, deviate from, be provided with the edge of a wing concordant with the plate face of boundary plates 61 in the both sides corresponding to boundary plates of tip-lever support, and on each boundary plates, be bolted along the press strip 8 of fore-and-aft direction extension, the top, the edge of a wing of press strip and tip-lever support is pressed and is spacingly coordinated to prevent that tip-lever support from deviating from when reciprocatingly sliding from chute.
Handle 14 1 ends in the present embodiment are by shipping and reselling on another market 15 hinged ends that are hinged on base 1, the other end is the operating side that operating grip rotates around hinged end, handle is in transmission connection by screw rod 13 and tip-lever support, one end of this screw rod and tip-lever support thread connection, the other end of screw rod connects with handle by a transmission shaft, on handle, be provided with along the long kidney-shaped hole of handle bearing of trend, described transmission shaft is slidedly assemblied in described long kidney-shaped hole, when operating grip when hinged end rotates forward, handle passes through transmission shaft, screw rod promotes tip-lever support along chute to front slide, when operating grip when hinged end rotates backward, handle passes through transmission shaft, screw rod pulls tip-lever support to slide backward along chute.
The spring block as spring block in the present embodiment is fixedly installed on base, in other embodiments also can be by the base of spring block and force application apparatus corresponding being arranged on test table respectively, if base keeps relative static with spring block when tip-lever support slides.
Elastic component in the present embodiment preferably adopts stage clip, also can adopt in other embodiments extension spring to realize being in transmission connection between push rod and tip-lever support, now, spring base and locating sleeve are separated, extension spring is between the spring base and locating sleeve of push rod, the front end of extension spring is fixed on locating sleeve, its rear end is fixed on spring base, certainly extension spring also can be sleeved on push rod, when tip-lever support under the handle thrust during to front slide, tip-lever support passes through locating sleeve, extension spring pulls push rod to move forward, when the contact end of push rod is subject to the leaf spring elastic deformation and produces acting force backward, the extension spring distortion also provides acting force forward to push rod.
Indicating device in the present embodiment is divided into the first pointer and the second pointer, in other embodiments, indicating device can adopt a test pointer, indicate the second groove and the first groove by the test pointer on tip-lever support, the distance definition that simultaneously will test between the contact end of the indication end of pointer and push rod is H0, when H0 is greater than required leaf spring elastic deformation size H, when the indication end of test pointer move to and spring block on during distance between the datum line 400 that the indicates size that is (H0-H), the contact end of push rod moves to predeterminated position; When H0 is less than required leaf spring elastic deformation size H, when the indication end of test pointer forward and while crossing distance between the datum line 400 indicated on spring block for the size of (H-H0), the contact end of push rod moves to predeterminated position, when the contact end of push rod moves to predeterminated position, indicate the test groove by the test pointer on tip-lever support, thereby judge that whether leaf spring is qualified.
The second pointer in indicating device in the present embodiment indicates the first groove and the second groove on tip-lever support, in other embodiments, can arrange in addition and specialize in the reticle that indicating device indicates groove, this reticle can be installed on base, also other positions can be set, but will keep relative static with base.
Above-described embodiment is for preferred embodiment, in other embodiments, pick-up unit also can not comprise indicating device, can judge by naked eyes whether the leaf spring variable reaches the sex change requirement by operating personnel oneself, now, whether the decrement of elastic component is within scope, and the method for certain this naked eyes judgement is inaccurate, can measure by the adapted dip stick.
A kind of detection method of using the detection device for elasticity of plate spring provided in above-described embodiment to detect leaf spring, at first, leaf spring 300 1 ends are fixed on the spring block 12 of pick-up unit, and making the leaf spring other end is free end, described pick-up unit also comprises for the free end application of force to leaf spring so that leaf spring produces the force application apparatus 200 of elastic deformation, force application apparatus comprises guiding mechanism, move and be equipped with tip-lever support 6 along fore-and-aft direction on guiding mechanism, described spring block 12 is positioned at force application apparatus 200 the place aheads, be equipped with push rod 5 along the fore-and-aft direction guiding movement on tip-lever support 6, be provided with the elastic component that applies acting force forward when tip-lever support moves forward to push rod between tip-lever support 6 and push rod 5, the push rod front portion has when driving push rod at tip-lever support and travel forward top and is pressed in the leaf spring free end and oppresses the contact end 51 that leaf spring produces the elastic deformation that the leaf spring free end swings forward, and make the contact end of the free end of leaf spring over against push rod,
Then, promote tip-lever support 6 drive push rods and move forward, contact end 51 compressing leaf spring 300 free ends of push rod swing forward, and the elastic component between push rod and tip-lever support produces elastic deformation;
Finally, when the leaf spring free end is rocked to forward when the leaf spring elastic deformation amount reaches the detection leaf spring elastic deformation amount who requires in advance, record the elastic deformation amount of elastic component, the elastic deformation amount of elastic component and preset standard scope are compared, the elastic deformation amount of elastic component is positioned within the preset standard scope, leaf spring is qualified, otherwise leaf spring is defective.
Claims (6)
1. a detection device for elasticity of plate spring, it is characterized in that: comprise for fixing leaf spring one end and make the leaf spring other end be free-ended spring block and for the free end application of force to leaf spring so that leaf spring produces the force application apparatus of elastic deformation, force application apparatus comprises guiding mechanism, move and be equipped with tip-lever support along fore-and-aft direction on guiding mechanism, described spring block is positioned at force application apparatus the place ahead, be equipped with push rod along the fore-and-aft direction guiding movement on tip-lever support, be provided with the elastic component that applies acting force forward when tip-lever support moves forward to push rod between tip-lever support and push rod, the push rod front portion has when driving push rod at tip-lever support and travel forward top and is pressed in the leaf spring free end and oppresses the contact end that leaf spring produces the elastic deformation that the leaf spring free end swings forward,
Described detection device for elasticity of plate spring also comprise at push rod compressing leaf spring free end so that leaf spring shows the elastic deformation amount's of leaf spring elastic deformation amount and described elastic component indicating device while producing elastic deformation;
Described push rod guiding movement is assemblied in the pilot hole offered on tip-lever support, along fore-and-aft direction, the front end face by tip-lever support extends back pilot hole, described elastic component is the stage clip be sleeved on push rod, at the bottom of the rear end of stage clip withstands on the hole of pilot hole, its front end withstands on the spring base be convexly equipped with on push rod, the place, front end aperture of described pilot hole is provided with internal thread, at the place, aperture of pilot hole, thread connection has locating sleeve, and the rear end face of locating sleeve coordinates with the front end face thrust of spring base;
Described force application apparatus comprises base, described guiding mechanism is fixedly installed on base, at the rear portion of base, be provided with for promoting tip-lever support handle to front slide on guiding mechanism, one end of handle is that the hinged end, the other end that are hinged on base are the operating side that operating grip rotates around hinged end, and handle is in transmission connection by a drive link and tip-lever support.
2. detection device for elasticity of plate spring according to claim 1 is characterized in that: described indicating device comprises that the contact end that is used to indicate push rod be installed on push rod moves forward the first pointer of position and is used to indicate second pointer of push rod with respect to the displacement of tip-lever support.
3. detection device for elasticity of plate spring according to claim 2, it is characterized in that: described the first pointer is installed in the front portion that passes tip-lever support of push rod, desired elastic deformation amount when the distance of the indication end face of the first pointer and the contact end of push rod equals to detect leaf spring, described the second pointer is installed in the rear end that passes tip-lever support of push rod.
4. detection device for elasticity of plate spring according to claim 3, it is characterized in that: described spring block is along perpendicular to the guide direction of fore-and-aft direction, extending and be installed on described base, on spring block, be provided with for the fixing register pin of leaf spring one end, on spring block, also be provided with for indicating the backing pin of leaf spring datum line, this leaf spring datum line is for reaching testing requirement with the corresponding cooperation of the first pointer indication end face to mean the leaf spring elastic deformation amount.
5. a detection method of using detection device for elasticity of plate spring as claimed in claim 1 to detect leaf spring is characterized in that:
At first, leaf spring one end is fixed on the spring block of pick-up unit, and making the leaf spring other end is free end, described pick-up unit also comprises for the free end application of force to leaf spring so that leaf spring produces the force application apparatus of elastic deformation, force application apparatus comprises guiding mechanism, move and be equipped with tip-lever support along fore-and-aft direction on guiding mechanism, described spring block is positioned at force application apparatus the place ahead, be equipped with push rod along the fore-and-aft direction guiding movement on tip-lever support, be provided with the elastic component that applies acting force forward when tip-lever support moves forward to push rod between tip-lever support and push rod, the push rod front portion has when driving push rod at tip-lever support and travel forward top and is pressed in the leaf spring free end and oppresses the contact end that leaf spring produces the elastic deformation that the leaf spring free end swings forward, and make the contact end of the free end of leaf spring over against push rod,
Then, promote tip-lever support drive push rod and move forward, the contact end compressing leaf spring free end of push rod swings forward, and the elastic component between push rod and tip-lever support produces elastic deformation;
Finally, when the leaf spring free end is rocked to forward when the leaf spring elastic deformation amount reaches the detection leaf spring elastic deformation amount who requires in advance, record the elastic deformation amount of elastic component, the elastic deformation amount of elastic component and preset standard scope are compared, the elastic deformation amount of elastic component is positioned within the preset standard scope, leaf spring is qualified, otherwise leaf spring is defective.
6. detection method according to claim 5, it is characterized in that: described preset standard scope obtains by described pick-up unit, when at first with maximum elastic force in the leaf spring claimed range, promoting push rod and slide backwards on the front and back stress balance of push rod with respect to tip-lever support, the decrement of elastic component is maximum deformation quantity, then promote push rod with respect to tip-lever support during backward to the front and back stress balance of push rod with minimum elastic force in the leaf spring claimed range, the decrement of elastic component is least amount of deformation, and described maximum deformation quantity and least amount of deformation form the preset standard scope.
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| CN103954414B (en) * | 2014-03-13 | 2017-01-04 | 日照裕鑫动力有限公司 | The measuring method of upper dog chart digital display type elasticity measuring device |
| CN104458092B (en) * | 2014-12-11 | 2017-06-13 | 中国航空工业标准件制造有限责任公司 | Wave washer spring force detection means and its detection method |
| CN105953961A (en) * | 2016-04-27 | 2016-09-21 | 赵静 | Pressing base for sliding-adjustable spring set elastic force detection |
| CN106289745B (en) * | 2016-08-11 | 2018-12-07 | 上海汽车集团股份有限公司 | Composite material plate spring high/low temperature fatigue and rolling capability testboard bay |
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| CN101832878A (en) * | 2010-04-27 | 2010-09-15 | 昆山中瑞达电子有限公司 | Adjustable pressing test bar |
| CN202267553U (en) * | 2011-08-23 | 2012-06-06 | 平高集团有限公司 | Detection device for elasticity of plate spring |
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