CN114441314B - Measuring instrument for detecting spring quality and using method thereof - Google Patents

Measuring instrument for detecting spring quality and using method thereof Download PDF

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Publication number
CN114441314B
CN114441314B CN202210094746.8A CN202210094746A CN114441314B CN 114441314 B CN114441314 B CN 114441314B CN 202210094746 A CN202210094746 A CN 202210094746A CN 114441314 B CN114441314 B CN 114441314B
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spring
measuring area
pressure plate
measuring
case
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CN114441314A (en
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赵丽宏
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Tangshan Comprehensive Law Enforcement Bureau Of Market Supervision
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Tangshan Comprehensive Law Enforcement Bureau Of Market Supervision
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001Type of application of the stress
    • G01N2203/0003Steady
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/006Crack, flaws, fracture or rupture
    • G01N2203/0067Fracture or rupture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/026Specifications of the specimen
    • G01N2203/0288Springs
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The application discloses a measuring instrument for detecting the quality of a spring and a use method thereof, comprising the following steps: the workbench is connected with the display through the sensor, the workbench comprises a measuring area, a plurality of fixing holes are formed in the measuring area, an inductor is arranged below the measuring area, the inductor is arranged right below the fixing holes, and the inductor is connected with the sensor; the workbench comprises a plurality of moving areas, the moving areas are symmetrically distributed by taking the measuring areas as center points, sliding grooves are formed in the moving areas, telescopic rods are arranged in the sliding grooves and are arranged on sliding blocks, the sliding blocks can slide along the sliding grooves, one ends of the sliding blocks are connected with stretching rods, and the stretching rods penetrate through the workbench; the work includes lifter and the pressure board of setting on the lifter, is provided with a plurality of counterpoints holes on the pressure board, and the pressure board is connected the sensor appearance, fixes the spring both ends on the movable region, and the movable region changes spring length, and the sensor obtains spring stress value in the measuring region to obtain the state of spring when the atress under different elongation.

Description

Measuring instrument for detecting spring quality and using method thereof
Technical Field
The application relates to the field of spring quality detection and load measurement, in particular to a measuring instrument for detecting spring quality and a using method thereof.
Background
The use of the spring in the use process (30 ten thousand rounds of conditions, the use of the joint with a close length) leads to the generation of pressure exceeding the maximum compression amount and further causes the breakage, and the use of the spring close to the close length leads to the gradual close of the spring wire part, because the load curve is increased along with the increase of the spring constant, and the high stress is generated to break the spring, and the use of the spring is not required to exceed 30 ten thousand rounds. The use of no pre-compaction causes the spring to vibrate up and down because of having the clearance and leads to the spring distortion, if pre-compaction, the spring is comparatively stable. When the spring is used transversely, the guide pin and the spring can be worn and broken. The use of spring-less guidance, such as in the case of dance spring guidance, can easily cause twisting of the bottom and body of the spring, with localized high pressure in the twisting portion being the cause of the spring breaking. Poor flatness of the mounting surface can cause spring torsion when the mounting surface is poor in parallelism, high pressure fracture is locally generated, and spring torsion and more than 30 ten thousand returns use can cause spring fracture when the mounting surface is poor in parallelism.
A spring is a mechanical part that works with elasticity. Parts made of elastic materials deform under the action of external force, and recover after the external force is removed. Also referred to as a "spring". Typically made of spring steel. The spring is of various kinds and is divided into spiral spring, plate spring, special spring, etc. The spring often can involve deformation in the use, need carry out the quality testing to the spring before the spring leaves the factory, adopt single check out test set to the quality testing of spring among the prior art, detection accuracy is lower, detects incomplete spring and can bring the potential safety hazard when selling the use on the market, so need a device that can detect in many aspects to the spring.
Disclosure of Invention
The application overcomes the defects of the prior art and provides a measuring instrument for detecting the quality of a spring and a using method thereof.
In order to achieve the above purpose, the application adopts the following technical scheme: a meter for detecting spring mass and method of use thereof, comprising: the workbench is connected with the display through a sensor, and is characterized by comprising a measuring area, wherein a plurality of fixing holes are formed in the measuring area, an inductor is arranged below the measuring area and is arranged right below the fixing holes, and the inductor is connected with the sensor;
the workbench comprises a plurality of moving areas, wherein the moving areas are symmetrically distributed by taking a measuring area as a center point, sliding grooves are formed in the moving areas, telescopic rods are arranged in the sliding grooves, the sliding grooves are symmetrically arranged on two sides of the measuring area respectively, the telescopic rods are arranged on sliding blocks, the sliding blocks can slide along the sliding grooves, one ends of the sliding blocks are connected with stretching rods, and the stretching rods are connected with the workbench in a penetrating manner;
the work includes the lifter and sets up pressure plate on the lifter, be provided with a plurality of counterpoint holes on the pressure plate, counterpoint hole with the fixed orifices sets up relatively, the pressure plate is connected the sensor appearance.
In a preferred embodiment of the application, the telescopic rod is provided with a plurality of rewinding sheets, and the contact surface of the workbench and the telescopic rod is provided with a plurality of clamping grooves which are matched with the rewinding sheets.
In a preferred embodiment of the present application, an alignment nut is disposed in the fixing hole, and a magnet spacer is disposed on the alignment nut.
In a preferred embodiment of the application, a safety rod is arranged on the sliding block, a pressure pump is arranged in the sliding block, the safety rod penetrates through the sliding block and is connected to the pressure pump, the safety rod stretches and contracts along with the size of the pressure pump, and the stretching and contracting range is from the minimum distance from the sliding block to the measuring area to the maximum range from the sliding block to the measuring area.
In a preferred embodiment of the present application, the number of alignment holes is smaller than the number of fixing holes, and the alignment holes are aligned with the fixing holes in a centered manner.
In a preferred embodiment of the present application, the lifting table is provided with a lifting handle, and the lifting handle is provided with a vertical moving device, and the vertical moving device is connected to the lifting table.
The method of using the measuring instrument for detecting the spring quality in the preferred embodiment of the application,
s1, fixing: fixing the spring on a sliding groove of a moving area, wherein two ends of the sliding groove are respectively fixed on two sides of a measuring area, and the part to be measured of the spring is fixed on the measuring area through a fixing hole;
s2, detecting: the pressure plate is lowered through the handle, the alignment holes on the pressure plate press the part to be tested of the spring, and different forces are applied to different spring lengths;
s3, statistics: the spring length, force application data and spring state are recorded.
In a preferred embodiment of the present application,
case 1: the length of the spring is smaller than the original length, and the number of turns of the spring in the fixing hole is 8-12;
case 2: the length of the spring is equal to the original length, and the number of turns of the spring in the fixing hole is 6-8;
case 2: the length of the spring is longer than the original length, and the number of turns of the spring in the fixing hole is 3-6.
In a preferred embodiment of the present application,
case 1: the pressure plate exerts a force of 800N-1200N, and is gradually overlapped, and the para-position Kong Kongshu is 6-10;
case 2: the pressure plate exerts 600N-800N force, and is gradually overlapped, and the para position Kong Kongshu is 4-6;
-case 3: the pressure plate has a force of 300N-600N, and is gradually overlapped, and the para position Kong Kongshu is 1-4.
In a preferred embodiment of the application, the springs are detected in groups, wherein the number of springs to be detected in each group of detection springs is not less than 6, and the spring coefficient of each group of springs to be detected is the same.
The application solves the defects existing in the background technology, and has the following beneficial effects:
(1) Through setting up the movable region on the workstation, fix the spring both ends on the movable region, change spring length through the movable region, set up the measuring region in two movable regions, obtain the spring stress value through the inductor in the measuring region, thereby obtain the state when the spring atress under different elongation, obtain the stiffness coefficient of spring and spring axial atress and elongation limit value, compared with single detection device, the application not only can detect spring elasticity, stiffness coefficient and can also detect the spring and receive the pressure limit value under the user state simultaneously, for example: if the pressure limit value of the spring in the use state is known, the maintenance period and the replacement time of the spring can be calculated, so that unnecessary manpower loss can not be caused, the resource waste can be avoided, and the safety coefficient of the locomotive is improved.
(2) The fixed orifices on the lifter plate are arranged oppositely to the fixed orifices on the measuring area, the number of the fixed orifices on the measuring area is larger than the number of the fixed orifices, the fixed orifices are arranged at the center of the fixed orifices, the stressed area of the holes is larger than the force application area, the pressure applied by the lifter plate can be transmitted to the spring detection section to the greatest extent, the detection result is more accurate, meanwhile, the influence of the lifter plate pressure on the section which is not detected by the spring is reduced, the lifter plate pressure is uniformly transmitted to the section to be detected by the spring due to the centering of the fixed orifices, and the upper and lower opposite fixed orifices clamp the spring in the measuring area in a fastening manner, so that the lifter plate can not loosen the spring when pressing the spring, and the experimental result is affected.
(3) The spring is detected whether to accord with factory specifications or not by corresponding three different force application conditions of the spring to different force application conditions of the spring, so that stress states of the spring in the same specification in stretching, original length and shrinkage states are obtained, stress limit values of the spring in the three states are obtained, the spring is detected in the prior art, the original length is adopted for detecting the spring in the prior art, the stretching and the stretching of the spring are often involved in the later use process of the spring, stress values of the spring in different states are often different, the stress limit values of the spring in different stretching degree states are required to be detected, and the safety value of the spring in use can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art;
FIG. 1 is a perspective view of a measuring instrument according to a preferred embodiment of the present application;
fig. 2 is a process flow diagram of a preferred embodiment of the present application.
In the figure: 1. a work table; 2. a display; 3. a measurement zone; 31. a fixing hole; 32. a fixing groove; 4. a moving area; 41. a chute; 42. a telescopic rod; 43. a slide block; 5. a lifting rod; 51. a pressure plate; 6. lifting the grab handle; 7. a spring; 8 transmission lines.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include one or more of the feature, either explicitly or implicitly. In the description of the application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1, a measuring instrument for detecting the mass of a spring 7 and a method for using the same, comprising: the device comprises a workbench 1 and a display 2, wherein the workbench 1 is connected with the display 2 through a sensor, the workbench 1 comprises a measuring area 3, a plurality of fixing holes 31 are formed in the measuring area 3, an inductor is arranged below the measuring area 3 and is arranged right below the fixing holes 31, and the inductor is connected with the sensor; the workbench 1 comprises a plurality of moving areas 4, the moving areas 4 are symmetrically distributed by taking a measuring area 3 as a center point, sliding grooves 41 are formed in the moving areas 4, telescopic rods 42 are arranged in the sliding grooves 41, the sliding grooves 41 are symmetrically arranged on two sides of the measuring area 3 respectively, the telescopic rods 42 are arranged on sliding blocks 43, the sliding blocks 43 can slide along the sliding grooves 41, one ends of the sliding blocks 43 are connected with stretching rods, and the stretching rods penetrate through the workbench 1; the work includes lifter 5 and sets up the pressure board on lifter 5, is provided with a plurality of counterpoints holes on the pressure board, counterpoints hole and fixed orifices 31 relative setting, and the sensor appearance is connected to the pressure board, and the pressure board is connected to on the display 2 through transmission line 8.
By arranging the moving areas 4 on the workbench 1, fixing two ends of the spring 7 on the moving areas 4, changing the length of the spring 7 through the moving areas 4, arranging the measuring areas 3 in the two moving areas 4, and obtaining the stress values of the spring 7 through sensors in the measuring areas 3, so as to obtain the states of the spring 7 when being stressed under different elongations, and obtain the stiffness coefficient of the spring 7 and the limit value of the axial stress and elongation of the spring 7. If the pressure limit value of the spring 7 in the use state is known, the maintenance period and the replacement time of the spring 7 can be calculated, so that unnecessary manpower loss is avoided, resource waste is avoided, and the safety coefficient of the locomotive is improved.
Be provided with a plurality of rewinders on the telescopic link 42, workstation 1 is provided with a plurality of draw-in grooves with telescopic link 42 contact surface, draw-in groove and rewinder looks adaptation, and when telescopic link 42 reached required flexible length, the rewinder card was in the draw-in groove, makes its telescopic link 42 can not be influenced by the pressure plate when measuring, and leads to flexible unstability, causes measuring result inaccurate.
An alignment nut is arranged in the fixing hole 31, a magnet gasket is arranged on the alignment nut, and the magnet gasket enables the ring measured by the spring 7 to be fixed in the measuring area 3, so that the measuring position of the ring cannot deviate.
The safety rod is arranged on the sliding block 43, the pressure pump is arranged in the sliding block 43, the safety rod penetrates through the sliding block 43 and is connected to the pressure pump, the safety rod stretches and contracts along with the size of the pressure pump, and the stretching and contracting range is from the minimum distance from the sliding block 43 to the measuring area 3 to the maximum range from the sliding block 43 to the measuring area 3. The safety rod ensures that the spring 7 cannot randomly jump when being broken, thereby ensuring the safety of experimental personnel. The lifting table is provided with a lifting grab handle 66, the lifting grab handle 66 is provided with a vertical moving device, and the vertical moving device is connected to the lifting table. The grab handle is used for adjusting the pressure plate to ensure that the pressure plate is in an optimal position during measurement.
The number of the alignment holes is smaller than the number of the fixing holes 31, the alignment holes are aligned with the fixing holes 31 in the middle, the alignment holes on the lifting plate are arranged opposite to the fixing holes 31 on the measuring area 3, the number of the fixing holes 31 on the measuring area 3 is larger than the number of the alignment holes, the alignment holes are located in the center of the fixing holes 31, the stress area of the holes is larger than the force application area, the pressure exerted by the lifting plate can be maximally transmitted to the detection section of the spring 7, the detection result is more accurate, meanwhile, the influence of the pressure of the lifting plate on the undetected section of the spring 7 is reduced, the alignment holes are centrally arranged to enable the pressure of the lifting plate to be uniformly transmitted to the section to be detected of the spring 7, and the upper and lower opposite alignment holes and the fixing holes 31 clamp the spring 7 in the measuring area 3 in a fastening mode, so that the lifting plate can not loosen the spring 7 when pressing the spring 7, and accordingly the experimental result is affected.
As shown in fig. 2, the measuring instrument for detecting the mass of the spring 7 in the present application is used,
s1, fixing: fixing the spring 7 on a sliding groove 41 of the moving area 4, the two ends of which are respectively fixed on the two sides of the measuring area 3, and fixing the part to be measured of the spring 7 on the measuring area 3 through a fixing hole 31;
s2, detecting: the pressure plate is lowered through the handle, the alignment holes on the pressure plate press the part to be tested of the spring 7, and different forces are applied to different lengths of the spring 7;
s3, statistics: the length of the spring 7, the force application data and the state of the spring 7 are recorded.
Case 1: the length of the spring 7 is smaller than the original length, and the number of turns of the spring 7 in the fixing hole 31 is 8-12;
case 2: the length of the spring 7 is equal to the original length, and the number of turns of the spring 7 in the fixed hole 31 is 6-8;
case 2: the length of the spring 7 is longer than the original length, and the number of turns of the spring 7 in the fixing hole 31 is 3-6.
Case 1: the pressure plate exerts a force of 800N-1200N, and is gradually overlapped, and the para-position Kong Kongshu is 6-10;
case 2: the pressure plate exerts 600N-800N force, and is gradually overlapped, and the para position Kong Kongshu is 4-6;
-case 3: the pressure plate has a force of 300N-600N, and is gradually overlapped, and the para position Kong Kongshu is 1-4.
The stress states of the springs 7 in the same specification in the stretching state, the original length state and the shrinkage state are obtained by corresponding the three different conditions of the springs 7 to the different force application conditions, and stress limit values of the three states are obtained, so that whether the springs 7 meet the factory specification or not is detected, the original length is adopted for detecting the springs 7 in the prior art, the stretching and the stretching of the springs 7 are often involved in the later use process of the springs 7, the stress values of the springs 7 in the different states are often different, and therefore the stress limit values of the springs 7 in the different stretching states are detected, and the safety value of the springs 7 in use can be improved.
The springs 7 are detected in the form of small groups, the number of the springs 7 to be detected in each group of detection springs 7 is not less than 6, and the elastic coefficients of the springs 7 to be detected in each group are the same.
The same batch of springs 7 with the original length of 35cm and the stiffness coefficient of 300N/M are extracted for 7 springs to carry out the test for the stiffness coefficient of 7 springs,
reference numerals Length of extension Number of alignment holes Ultimate stress value at break
1 -10cm 8 1182N
2 -20cm 10 1096N
3 -30cm 12 902N
4 0 6 770N
5 10cm 5 590N
6 20cm 4 440N
7 30cm 3 356N
It is known that a spring 7 having a stiffness coefficient of 300N/M and a length of 35cm breaks when compressed by 10cm under 1182N; when compressed by 20cm, the steel is broken when subjected to 1096N force; when compressed by 30cm, the steel is broken when subjected to 902N force; when the steel is in an original length state, the steel is broken when being subjected to 770N force; when stretched for 10cm, the steel sheet breaks under 1182N force; when stretched for 10cm, the steel sheet breaks when subjected to a force of 590N; when 20cm is stretched, the elastic piece breaks when being subjected to 440N of force; when the spring 7 stretches by 30cm, the spring 7 breaks under 356N force, so that the limit value of the expansion and contraction amount of the spring 7 with the stiffness coefficient of 300N/M and the length of 35cm can be obtained, the limit value of the spring 7 breaking can be pre-judged according to the stress of the spring 7 in the use process, the defense measure can be made in advance, and the safety value of the spring 7 in use is improved.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The application method of the measuring instrument for detecting the spring quality comprises the following steps:
s1, fixing: two ends of the spring are respectively fixed on sliding grooves of the moving area at two sides of the measuring area, and a part to be measured of the spring is fixed on the measuring area through a fixing hole;
s2, detecting: lowering the pressure plate through the lifting grab handle, pressing the part to be tested of the spring by the pressure plate, and applying different forces by different spring lengths;
s3, statistics: recording the length of the spring, force application data and the state of the spring;
the following three cases are included in the step S1 fixation:
case 1: the length of the spring is smaller than the original length, and the number of turns of the spring in the fixing hole is 8-12;
case 2: the length of the spring is equal to the original length, and the number of turns of the spring in the fixing hole is 6-8;
-case 3: the length of the spring is longer than the original length, and the number of turns of the spring in the fixing hole is 3-6;
in the case of step S1, step S2 detects that corresponds to the following case:
case 1: the pressure plate exerts a force of 800N-1200N, and is gradually overlapped, and the para-position Kong Kongshu is 6-10;
case 2: the pressure plate exerts 600N-800N force, and is gradually overlapped, and the para position Kong Kongshu is 4-6;
-case 3: the pressure plate exerts 300N-600N force, and is gradually overlapped, and the para position Kong Kongshu is 1-4;
the measuring instrument includes: the workbench is connected with the display through a sensor, and is characterized in that,
the workbench comprises a measuring area, a plurality of fixing holes are formed in the measuring area, an inductor is arranged below the measuring area, the inductor is arranged right below the fixing holes, and the inductor is connected with the sensor;
the workbench comprises a plurality of moving areas, wherein the moving areas are symmetrically distributed by taking a measuring area as a center point, sliding grooves are formed in the moving areas, telescopic rods are arranged in the sliding grooves, the sliding grooves are symmetrically arranged on two sides of the measuring area respectively, the telescopic rods are arranged on sliding blocks, and the sliding blocks can slide along the sliding grooves;
the workbench comprises a lifting rod and a pressure plate arranged on the lifting rod, a plurality of alignment holes are formed in the pressure plate, the alignment holes are arranged opposite to the fixing holes, and the pressure plate is connected with the sensor;
an alignment nut is arranged in the fixing hole, and a magnet gasket is arranged on the alignment nut.
2. A method of using a gauge for sensing spring mass as defined in claim 1, wherein: the telescopic rod is provided with a plurality of rewinding sheets, the contact surface of the workbench and the telescopic rod is provided with a plurality of clamping grooves, and the clamping grooves are matched with the rewinding sheets.
3. A method of using a gauge for sensing spring mass as defined in claim 1, wherein: the safety rod is arranged on the sliding block, a pressure pump is arranged in the sliding block, and the safety rod penetrates through the sliding block and is connected to the pressure pump.
4. A method of using a gauge for sensing spring mass as defined in claim 1, wherein: the number of the alignment holes is smaller than that of the fixing holes, and the alignment holes are aligned with the fixing holes in the middle.
5. A method of using a gauge for sensing spring mass as defined in claim 1, wherein: the lifting rod is provided with a lifting grab handle.
6. A method of using a gauge for sensing spring mass as defined in claim 1, wherein: the springs are detected in a small group mode, the number of springs to be detected in each group of detection springs is not less than 6, and the elastic coefficients of the springs to be detected in each group are the same.
CN202210094746.8A 2022-01-26 2022-01-26 Measuring instrument for detecting spring quality and using method thereof Active CN114441314B (en)

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Citations (7)

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JP2002022629A (en) * 2000-07-03 2002-01-23 Seiko Instruments Inc Method and equipment for measuring spring
CN210834490U (en) * 2019-08-08 2020-06-23 赵新君 Pressure detection instrument
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