CN109000848A - A kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading - Google Patents
A kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading Download PDFInfo
- Publication number
- CN109000848A CN109000848A CN201811205957.4A CN201811205957A CN109000848A CN 109000848 A CN109000848 A CN 109000848A CN 201811205957 A CN201811205957 A CN 201811205957A CN 109000848 A CN109000848 A CN 109000848A
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- cold heading
- fuselage
- dynamic calibration
- block group
- steel ball
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 16
- 239000006247 magnetic powder Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 7
- 239000002033 PVDF binder Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading of denomination of invention is made a summary the invention discloses a kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading, and sensor dynamic calibration experimental rig field is belonged to.It includes servo motor, fuselage, a V-belt wheel group, crank block group, brake.Be characterized in that: the v belt wheel group is made of small pulley, big belt wheel, V band, key, baffle and holding screw；The crank block group is made of crankshaft, sliding bearing, top bearing shell, sliding block group, linear guide, hexagon-headed bolt, hex-head nut, magnetic powder brake, cold heading die lower die, spring, cold heading die fixed plate, cold heading die upper mold, guide post, formed punch, die shank, hexagon-headed bolt, latch segment, slide body, ring flange, guide sleeve；The power device is fixed on rear end of rack, is driven by servo motor, carries out output power, and adjustable speed realizes different rates, and then generates different impact force load, realizes the quasi-static calibration of sensor and dynamic calibration.
Description
Technical field
The invention belongs to a kind of sensor dynamic calibration apparatus, are exactly a kind of pressure sensings for steel ball cold heading
Device dynamic calibration experimental rig.
Background technique
Now steel ball cold heading testing machine socially and Sensorless monitoring, and the continuous development of adjoint sensor technology,
Sensor is bound to be combined with each other with steel ball cold heading testing machine, and there are many sensor, is widely used in all trades and professions.Such as pressure
Electric-type accelerometer and force snesor are most common two kinds of sensors in vibration experiment.
Piezoelectric transducer is manufactured sensor using certain medium stress generation piezoelectric effect.Piezoelectric effect refers to
Piezo-electric crystal is in the external force by a direction and when deformation occurs (including bending and telescopic deformation), due to internal charge
Polarization phenomena, can its surface generate charge polarization phenomena.For qualified sensor before factory, producer will use static meter
Measuring appratus is to transducer calibration.More consideration is given to sensors, and in the case where possible dynamic tests environment, quiet dynamical output occur poor
It is different.As a result, the highly accurate test device in static calibration, is but likely to occur great error in dynamic test,
Cause entire test device to lose its credibility under dynamic case, and easily causes the false judgment of people.
Currently, the dynamic calibration system of force snesor there is no shaped article.Reason is that the absolute magnitude of acceleration can be with
More accurately and conveniently measured by laser vibration measurer or gravity degree of adding, and the absolute magnitude of power directly acquire it is then very tired
It is difficult.The invention combines actual needs of the PVDF force snesor to dynamic calibration for detecting cold-heading process, researches and develops one kind and is used for
The pressure sensor dynamic calibration experimental rig of steel ball cold heading.
Summary of the invention
It is an object of the invention to design a kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading, complete
At quasi-static calibration and the dynamic calibration experiment for completing PVDF piezoelectric film sensor on the basis of steel ball cold heading function.
The technical scheme adopted by the invention to solve the technical problem is that: a kind of pressure sensor for steel ball cold heading is dynamic
State rating test device, characterized in that the v belt wheel group is by small pulley 16, big belt wheel 6, V band 36, key 39, baffle 23 and tightening
Screw 22 forms；The V band is looped around on V belt wheel；The crank block group is by crankshaft 40, sliding bearing 3, top bearing shell 4, straight line
Guide rail 32, hexagon-headed bolt 5, hex-head nut 9, magnetic powder brake 2, cold heading die lower die 18, spring 19, cold heading die fixed plate
20, cold heading die upper mold 21, guide post 26, formed punch 27, die shank 28, hexagon-headed bolt 29, latch segment 30, slide body 31, ring flange
33, guide sleeve 34 forms；The crankshaft 40 is installed on the fuselage 1 by sliding bearing 3；The linear guide 32 is mounted on fuselage 1
On, slide body 31 is mounted in linear guide 32, and the straight reciprocating motion of slide body 31 is realized under the drive of crankshaft 40；It is described dynamic
Power device is fixed on 1 rear end of fuselage, is driven by servo motor 14, carries out output power, and adjustable speed realizes different rates, in turn
Different impact force load are generated, realize quasi-static calibration and the dynamic calibration of sensor.
Further, the motor is to have selected servo motor 14, reduction of speed is carried out by V band 36, so that crankshaft 40 reaches
Rotary motion is become straight reciprocating motion, 38 real-time monitoring crankshaft of torque sensor by required speed, the crank block group structure
Information is fed back to servo motor 14 and is adjusted the speed by 40 torque, controls slide body 31 with this and hits module 25 with constant rate of speed,
And design process not only can simplify using centric slider-crank mechanism, but also bigger cold-heading power can be obtained；The slide body 31
It is connect with connecting rod 10, while slide body 31 is connect with linear guide 32 so that sliding block preferably moves back and forth.
Further, the power device is driven by servo motor 14.
The beneficial effects of the present invention are: the present invention devises a kind of pressure sensor dynamic calibration examination for steel ball cold heading
Experiment device can complete steel ball cold heading major function, the quasi-static calibration of achievable PVDF pressure sensor and dynamic calibration.
Detailed description of the invention
Fig. 1 is axonometric drawing of the present invention.
Fig. 2 is main view of the present invention.
Fig. 3 is the partial sectional view of overlook direction of the present invention.
Fig. 4 is the partial sectional view of left view direction of the present invention.
Fig. 5 is the partial enlarged view of overlook direction of the present invention.
In figure: 1 fuselage, 2 magnetic powder brakes, 3 sliding bearings, 4 top bearing shells, 5 hexagon-headed bolts, 6 big belt wheels, 7 lower bearinges,
8 spring washers, 9 hex nuts, 10 connecting rods, 11 adjustment screws, 12 nuts, 13 servo motor supports, 14 servo motors, 15 pads
Piece, 16 hexagon-headed bolts, 17 cold heading die cavity plates, 18 cold heading die lower dies, 19 springs, 20 cold heading die fixed plates, 21 cold heading die upper molds,
22 holding screws, 23 baffles, 24 small pulleys, 25 modules, 26 guide posts, 27 formed punches, 28 die shanks, 29 hexagon-headed bolts, 30 lockings
Block, 31 slide bodies, 32 linear guides, 33 ring flanges, 34 guide sleeves, 35PVDF sensor, 36V band, 37 sleeves, 38 torque sensings
Device, 39 keys, 40 crankshafts, 41 sleeves, 42 hexagon-headed bolts, 43 hexagon-headed bolts, 44 sleeves.
Specific embodiment
As shown in Figures 1 to 4, the present invention includes 1 fuselage, 2 magnetic powder brakes, 3 sliding bearings, 4 top bearing shells, 5 turret heads
Bolt, 6 big belt wheels, 7 lower bearinges, 8 spring washers, 9 hex nuts, 10 connecting rods, 11 adjustment screws, 12 nuts, 13 servo motors
Support, 14 servo motors, 15 gaskets, 16 hexagon-headed bolts, 17 cold heading die cavity plates, 18 cold heading die lower dies, 19 springs, 20 cold heading dies
Fixed plate, 21 cold heading die upper molds, 22 holding screws, 23 baffles, 24 small pulleys, 25 modules, 26 guide posts, 27 formed punches, 28 die shanks,
29 hexagon-headed bolts, 30 latch segments, 31 slide bodies, 32 linear guides, 33 ring flanges, 34 guide sleeves, 35PVDF sensor, 36V band,
37 sleeves, 38 torque sensors, 39 keys, 40 crankshafts, 41 sleeves, 42 hexagon-headed bolts, 43 hexagon-headed bolts, 44 sleeves.Below
In conjunction with attached drawing, the present invention will be described in detail.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, small pulley 24 is mounted on servo motor 14, is transferred to big band by V band 35
Wheel 6 carries out reduction of speed, and big belt wheel 6 is mounted on crankshaft 40, and the rotation band dynamic crankshaft 40 of big belt wheel 6 rotates, and crankshaft 40 passes through sliding axle
It holds 3 to fix on the fuselage 1, big belt wheel 6 and torque sensor 38 is positioned by sleeve 40, pass through sleeve 41 and the shaft shoulder pair
Sliding bearing 3 is positioned, and magnetic powder brake 2 is installed in 40 end of crankshaft, top bearing shell 4 and lower bearing 7 by hexagon-headed bolt 5 into
Row connection, by the linear reciprocating motion for being converted into slide body 31 of crankshaft 40,37 real-time monitoring crankshaft 40 of torque sensor
Torque, information is fed back and is adjusted the speed to servo motor 14, slide body 31 is controlled with this, module 25 is hit with constant rate of speed, it is complete
At realization impact force simulation on the basis of cold-heading function.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in
Within protection scope of the present invention.
Claims (3)
1. a kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading, it includes servo motor, fuselage, one group of V
Belt wheel group, crank block group, brake, are characterized in that: the v belt wheel group is by small pulley 16, big belt wheel 6, V band 36, key 39, gear
Plate 23 and holding screw 22 form；The V band is looped around on V belt wheel；The crank block group by crankshaft 40, sliding bearing 3, on
Bearing shell 4, sliding block group 7, linear guide 32, hexagon-headed bolt 5, hex-head nut 9, magnetic powder brake 2, cold heading die lower die 18, bullet
Spring 19, cold heading die fixed plate 20, cold heading die upper mold 21, guide post 26, formed punch 27, die shank 28, hexagon-headed bolt 29, latch segment
30, slide body 31, ring flange 33, guide sleeve 34 form；The crankshaft 40 is installed on the fuselage 1 by sliding bearing 3；The straight line
Guide rail 32 is installed on the fuselage 1, and sliding block group 7 is mounted in linear guide 32, and the straight line of sliding block group 7 is realized under the drive of crankshaft 40
It moves back and forth；The power device is fixed on 1 rear end of fuselage, is driven by servo motor 14, carries out output power, and adjustable speed is real
Existing different rates, and then different impact force load are generated, realize the quasi-static calibration of sensor and dynamic calibration.
2. a kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading according to claim 1, feature
It is that 1 front end of fuselage is higher than rear end, in order to install cold heading die cavity plate 17, centre hollows out saving material, is among fuselage 1
Spill cylinder facilitates installation linear guide 32；The crankshaft 40 is eccentric shaft, is mounted on fuselage by sliding bearing 3, both ends
It is positioned with sleeve and the shaft shoulder.
3. a kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading according to claim 1, feature
It is that the linear guide 32 is connected by bolts installation on the fuselage 1, and sliding block group, which is connected by bolts, is mounted on linear guide 32
On；The scope of application of the cold-heading power is 0-600KN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811205957.4A CN109000848A (en) | 2018-10-17 | 2018-10-17 | A kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811205957.4A CN109000848A (en) | 2018-10-17 | 2018-10-17 | A kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading |
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| Publication Number | Publication Date |
|---|---|
| CN109000848A true CN109000848A (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811205957.4A Pending CN109000848A (en) | 2018-10-17 | 2018-10-17 | A kind of pressure sensor dynamic calibration experimental rig for steel ball cold heading |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310622A (en) * | 2021-05-26 | 2021-08-27 | 安徽工业大学 | Micro-range quasi-static calibration pressure generator and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185955A (en) * | 2007-12-21 | 2008-05-28 | 江南大学 | Steel ball cold heading technique and steel ball cold header |
| CN204881971U (en) * | 2015-04-17 | 2015-12-16 | 成都理工大学 | Static test bench of maring of torque sensor |
| CN205843882U (en) * | 2016-06-22 | 2016-12-28 | 南京卓砾智测控技术有限公司 | A kind of Charpy wave pressure sensor field calibration device |
| CN107552706A (en) * | 2017-10-12 | 2018-01-09 | 芜湖市永帆精密模具科技有限公司 | A kind of steel ball cold heading mould |
| CN107655623A (en) * | 2017-08-15 | 2018-02-02 | 杭州电子科技大学 | Contactless Jing Dongtaibiaodingshiyantai |
-
2018
- 2018-10-17 CN CN201811205957.4A patent/CN109000848A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185955A (en) * | 2007-12-21 | 2008-05-28 | 江南大学 | Steel ball cold heading technique and steel ball cold header |
| CN204881971U (en) * | 2015-04-17 | 2015-12-16 | 成都理工大学 | Static test bench of maring of torque sensor |
| CN205843882U (en) * | 2016-06-22 | 2016-12-28 | 南京卓砾智测控技术有限公司 | A kind of Charpy wave pressure sensor field calibration device |
| CN107655623A (en) * | 2017-08-15 | 2018-02-02 | 杭州电子科技大学 | Contactless Jing Dongtaibiaodingshiyantai |
| CN107552706A (en) * | 2017-10-12 | 2018-01-09 | 芜湖市永帆精密模具科技有限公司 | A kind of steel ball cold heading mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310622A (en) * | 2021-05-26 | 2021-08-27 | 安徽工业大学 | Micro-range quasi-static calibration pressure generator and method |
| CN113310622B (en) * | 2021-05-26 | 2022-10-04 | 安徽工业大学 | Micro-range quasi-static calibration pressure generator and method |
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Application publication date: 20181214 |