CN208140355U - A kind of spring fatigue test device - Google Patents
A kind of spring fatigue test device Download PDFInfo
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- CN208140355U CN208140355U CN201820510989.4U CN201820510989U CN208140355U CN 208140355 U CN208140355 U CN 208140355U CN 201820510989 U CN201820510989 U CN 201820510989U CN 208140355 U CN208140355 U CN 208140355U
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Abstract
The utility model relates to a kind of spring fatigue test devices, including rack components, driving assembly, fixation kit, laser measurement and counting device and power-supply controller of electric.Rack components includes bottom plate, the linear guide being mounted on above bottom plate middle section, two sliding blocks being slidably matched respectively with linear guide and two linear motor radiators being separately mounted to above two sliding blocks.Driving assembly includes the linear motor being mounted in linear motor radiator, the driving plate on the inside of two linear motors, is installed through among driving plate and the connecting rod being connected with linear motor and several spring bases being mounted in driving plate.Spring base is equipped with the first spring fixing groove.The utility model can effectively simulate the various motion states of spring, carry out fatigue properties test to precision spring, have the features such as low energy consumption, and noise is small, control precision is high, and structure is simple, and applicability is wide.
Description
Technical field
The utility model relates to machine components experiment and the field of test technology, and in particular to a kind of spring fatigue experiment dress
It sets.
Background technique
Spring be it is a kind of using its elasticity come the critical elements of work.At work, it can control using the elasticity of spring
The functions such as buffering decompression, workmanship, dynamometry, accumulation of energy are realized in the movement of component.The quality of spring performance can by directly affect equipment
By property and safety.However it is frequently stretched spring at work and compression is so that spring material is easy to happen fatigue, in turn
Fracture is caused to lead to equipment fault, therefore spring generally requires carry out testing fatigue when leaving the factory, manufacturing industry manufacturer is to guarantee bullet
Spring quality also carries out a degree of testing fatigue to buying spring.
Currently, existing spring fatigue test device mainly has mechanical system, electromagnetic resonance and three kinds of electro-hydraulic servo formula.
Wherein, mechanical system is using turning motor, eccentric wheel, and the frame modes such as sliding block are drawn high and compressed to spring, which
In the presence of structure is complicated, test when precision is not high, error is big, energy consumption is high, noise is big, efficiency is lower the deficiencies of, it is difficult to reappear certain
The working condition of spring in precision instrument.Electromagnetic resonance is to utilize electromagnetic excitation, the principle work of test specimen resonance；It is electric when work
Magnet exciter occurs vibration and spring to be tested is driven to shake, to test spring；The shortcomings which is the vibration of test specimen
Mode can only be that simple sinusoidal waveshape and the true motion conditions of test specimen disagree, it is difficult to meet certain instrument component bullets
The accurate simulation of spring movement.Electro-hydraulic servo formula is electric signal dress will to be changed to hydraulic fluid flow rate by servo valve to control spring
Compression stretching movement, servo valve control flow is accurate, and cooperating electrical control gear to make, its action control is accurate, amplitude is high,
Thrust is big, but which that there are energy consumptions is high, structure is complicated it is too fat to move, safety is lower, precision is lower the deficiencies of, mainly apply to big
The fatigue experiment of type spring.
Utility model content
The purpose of this utility model is to provide a kind of spring fatigue test device, which is directed to high precision instrument equipment
The features such as working frequency of middle spring is high, stroke is small, precision is high, environment is harsh, can effectively simulate the various movement shapes of spring
State carries out fatigue properties test to precision spring, has that low energy consumption, and noise is small, and control precision is high, and structure is simple, and applicability is wide
The features such as.
To achieve the above object, the utility model uses following technical scheme：
A kind of spring fatigue test device, including rack components and symmetrically arranged two driving assemblies.The rack group
Part include bottom plate, the linear guide being mounted on above bottom plate middle section, two sliding blocks being slidably matched respectively with linear guide and
Two linear motor radiators being separately mounted to above two sliding blocks；The driving component includes being mounted on linear motor heat dissipation
Linear motor in device, the driving plate on the inside of linear motor are installed through among driving plate and are connected with linear motor
Connecting rod and several spring bases for being mounted in driving plate；The spring base is equipped with the first spring fixing groove.The drive
Dynamic component treats experiment spring and carries out compression and tension after being driven by linear motor.
Further, which further includes fixation kit；The fixation kit includes left fixed plate, right fixed plate, several
Fixed spring seat and fixed plate fixing piece；The left fixed plate passes through fixed plate fixing piece with the lower end of right fixed plate respectively and connect
On bottom plate.
Several through-holes are offered in the left fixed plate；It is offered in the right fixed plate equal with number of openings several
Second taper hole；Second positioning pin nail hole there are two being opened up in the left fixed plate and right fixed plate.
The left and right ends of the fixed spring seat are respectively equipped with second spring fixing groove；The middle part of the fixed spring seat
Dividing includes left cylinder, intermediate cylindrical and the right frustum set gradually from left to right；The diameter of left cylinder is less than the straight of intermediate cylindrical
Diameter, the diameter of intermediate cylindrical are equal to the maximum gauge of right frustum；The left cylinder installation in through-holes, intermediate cylindrical be clipped in it is left,
Between right fixed plate, right frustum is mounted in the second taper hole.
Further, which further includes laser measurement and counting device and power-supply controller of electric.The laser measurement and meter
Counting apparatus measures the Compression and Expansion number and Compression and Expansion length of spring for detecting to spring movement process
And it records.The power-supply controller of electric is controlled by motion state of the power supply output waveform to linear motor.
Further, the linear motor radiator includes the upper radiator set gradually from up to down and lower radiator；
The upper radiator is connected by bolt with lower radiator；The lower radiator is connected by screw on sliding block；It is described lower scattered
Hot device is equipped with radiator fixing piece；The radiator fixing piece is connected by screw on bottom plate；It is offered on the bottom plate
Several waist holes for fixed heat sink；The linear motor for fixed straight line motor is offered on the linear motor radiator
Mounting hole.
Further, central through hole is offered among the driving plate；It is also provided in the driving plate with central through hole
Centered on symmetrically arranged two the first positioning pin nail hole and along equally distributed several first taper holes in central through hole periphery.
The outer end of the connecting rod passes through screw after being threadedly coupled with the threaded hole that linear motor axial position is arranged in
It is fixed on linear motor, inner end passes through nut and washer locking in driving plate after passing through from central through hole.
The outer end of the spring base passes through nut and washer locking in driving plate after passing through from the first taper hole, and spring
The part that seat is matched with the first taper hole is frustum, and first spring fixing groove is set along the periphery spiral of spring base inner end
It sets, and the section of the first spring fixing groove is semicircle.
Further, fastener hole, the left fixed plate and right fixation are offered in the left fixed plate and right fixed plate
Plate is connected by screw to together.
Further, periphery spiral of the second spring fixing groove along fixed spring seat end is arranged, and second spring
The section of fixing groove is semicircle.
Further, the face that the fixed spring seat is contacted with left fixed plate is plane, and the face contacted with right fixed plate is
The conical surface.
From the above technical scheme, the utility model is equipped with the spring base of spring to be tested by linear motor driving
Movement, reduces transmission link, energy consumption and vibration is reduced, and linear motor output is controlled by power supply, from program
The operating condition for simulating different springs, the complexity for effectively preventing experimental provision structure are too fat to move.In addition, the utility model passes through to spring
The seat increase and decrease of the quantity and dismounting of fixation kit, can a volume same type spring is tested, improve test effect
Rate.The working frequency that the utility model can be directed to spring in high precision instrument equipment is high, stroke is small, precision is high, environment is harsh
The features such as, effectively simulate spring various motion states, to precision spring carry out fatigue properties test, have low energy consumption, noise
It is small, control the features such as precision is high, and structure is simple, and applicability is wide.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of rack components；
Fig. 3 is the side view of rack components；
Fig. 4 is driving assembly（Linear motor is not installed）Main view；
Fig. 5 is driving assembly（Linear motor is not installed）Side view；
Fig. 6 is the main view of fixation kit；
Fig. 7 is the side view of fixation kit.
Wherein：
1, driving assembly, 11, linear motor, 12, driving plate, 13, connecting rod, 14, spring base, the 15, first spring are fixed
Slot, 16, washer one, 17, nut, the 18, first positioning pin nail hole, 19, washer two, 2, fixation kit, 21, left fixed plate, 22, the right side
Fixed plate, 23, fixed spring seat, 24, second spring fixing groove, 25, fixed plate fixing piece, 26, screw, the 27, second positioning pin
Nail hole, 3, rack components, 31, bottom plate, 32, linear guide, 33, sliding block, 34, upper radiator, 35, lower radiator, 36, radiator
Fixing piece, 37, waist hole, 4, spring to be tested.
Specific embodiment
The utility model is described further with reference to the accompanying drawing：
A kind of spring fatigue test device as shown in Figure 1, including rack components 3, symmetrically arranged two driving assemblies
1, fixation kit 2, laser measurement and counting device and power-supply controller of electric.The laser measurement and counting device, for spring
Motion process is detected, and the Compression and Expansion number and Compression and Expansion length of spring are measured and recorded.The power supply control
Device processed is controlled by motion state of the power supply output waveform to linear motor, and the movement velocity of linear motor is by power supply control
Device control processed.
As shown in Figures 2 and 3, the rack components 3 is mounted on above 31 middle section of bottom plate including bottom plate 31, by screw
Linear guide 32, two sliding blocks 33 being slidably matched respectively with linear guide 32 and it is separately mounted to the top of two sliding blocks 32
Two linear motor radiators.The linear motor radiator is that linear motor increases heat-sinking capability.The linear motor heat dissipation
Device includes the upper radiator 34 set gradually from up to down and lower radiator 35.The upper radiator 34 passes through bolt and lower heat dissipation
Device 35 is connected.The sliding block 32 is equipped with threaded hole, and the lower radiator 35 is equipped with the counter sink closed with the corresponding threaded holes,
Lower radiator 35 is connected on sliding block 32 by screw.The lower radiator 35 is equipped with radiator fixing piece 36, lower heat dissipation
Device 35 is equipped with the hole matched with radiator fixing piece 36, and the upper end of radiator fixing piece 36 is connected on lower radiator 35,
The lower end of radiator fixing piece 36 is connected by screw on bottom plate 31.It is offered on the bottom plate 31 several for fixed heat dissipation
The waist hole 37 of device, for cooperating fixed requirement of the sliding block on different location.It offers and is used on the linear motor radiator
The linear motor mounting hole of fixed straight line motor.The bottom plate, for providing a necessary firm carrying environment, bottom for device
Plate is equipped with corresponding mounting hole and mounting surface for the accurate side mounted thereto of linear guide and sliding block.It is reserved with and is used on sliding block
Radiator when installation, is securely fixed on sliding block, so that straight-line electric by the hole location for connecting linear motor radiator by screw
Machine radiator can be slided in linear guide by sliding block.In order to enable linear motor radiator in a certain of linear guide
It is fixed at position, therefore radiator fixing piece is set.After linear motor radiator slides into a certain target position with sliding block, use
Radiator fixing piece is fixedly attached on bottom plate by screw.
As shown in Figure 4 and Figure 5, the driving component 1 includes the linear motor 11 being mounted in linear motor radiator, position
In the inside of linear motor 11 driving plate 12, be installed through the connecting rod 13 being connected among driving plate 12 and with linear motor 11
And it is mounted on several spring bases 14 in driving plate 12.The spring base 14 is equipped with the first spring fixing groove 15.The drive
Dynamic component 1 treats experiment spring 4 and carries out compression and tension after being driven by linear motor 11.In being offered among the driving plate 12
Heart through-hole.18 He of symmetrically arranged two the first positioning pin nail hole centered on central through hole is also provided in the driving plate 12
Centered on central through hole, along equally distributed several first taper holes in central through hole periphery.First taper hole, for accurately fixed
The position of position spring base.The quantity of first taper hole can increase and decrease according to the actual situation, it is preferred that be 8.First positioning
Pin hole 18, can be in processing and the relative position for accurately guaranteeing respectively spring to be tested when installation.Preferably, the driving plate is
It is round.
The both ends of the connecting rod are equipped with external screw thread, and the diameter of the screw thread in connecting rod should be at least more straight than central through hole
The small 1mm of diameter.The outer end of the connecting rod 13 passes through after being threadedly coupled with the threaded hole that 11 axial position of linear motor is arranged in
Screw is fixed on linear motor 11, and inner end passes through nut 17 after passing through from central through hole and washer 2 19 is locked at driving
On plate 12.The connecting rod 13, for driving plate and linear motor to be connected as an entirety.
The outer end of the spring base 14 is equipped with external screw thread, which passes through nut 17 and pad after passing through from the first taper hole
1 are enclosed to be locked in driving plate.The part that the spring base 14 is matched with the first taper hole is frustum, passes through the frustum and the
The setting of one taper hole has good Self-centering Action.First spring fixing groove 15 is along 14 inner end periphery spiral shell of spring base
Rotation setting, and the section of the first spring fixing groove 15 is semicircle.Spring 4 to be tested and the first spring fixing groove 15 screw solid
It is fixed.
As shown in Figure 6 and Figure 7, the fixation kit 2 includes left fixed plate 21, right fixed plate 22, several fixed spring seats
23 and fixed plate fixing piece 25.The left fixed plate 21 passes through fixed plate fixing piece 25 with the lower end of right fixed plate 22 respectively and connect
On bottom plate 31.The spring base 14 in fixed spring seat 23 and the driving component 1 in the fixation kit 2 is to correspond
It is arranged.
The left and right ends of the fixed spring seat 23 are respectively equipped with second spring fixing groove 24, and spring 4 to be tested passes through the
Two spring fixing grooves 24 are fixed on fixed spring seat 23.The second spring fixing groove 24 is along the outer of 23 end of fixed spring seat
All spiral settings, and the section of second spring fixing groove 24 is semicircle.Second spring fixing groove on fixed spring seat left end,
For being used cooperatively with the first spring fixing groove in the driving assembly above bottom plate left end；Second on fixed spring seat right end
Spring fixing groove, for being used cooperatively with the first spring fixing groove in the driving assembly above bottom plate right end.
Several through-holes are offered in the left fixed plate 21, after left end of the through-hole for fixed spring seat passes therethrough
The second spring fixing groove of fixed spring seat left end is set to be located at the left side of left fixed plate, which is also used to consolidate left cylinder
It is fixed.Several second taper holes equal with number of openings are offered in the right fixed plate 22, which is used for fixed spring
The right side that the right end of seat makes the second spring fixing groove of fixed spring seat right end be located at right fixed plate after extending there through, second cone
Hole is also used to that right frustum is fixed.Second shop bolt there are two being opened up in the left fixed plate 21 and right fixed plate 22
Hole 27.By through-hole and the second taper hole, the position precision of each fixed spring seat can be controlled.The second positioning pin nail hole
27, fixed spring seat can be made to be overlapped with the position height of spring base.Meanwhile in the fabrication process, to the benefit of positioning pin nail hole
With so that the relative position of the conical contact surface construction of fixed spring seat and right fixed plate has obtained height guarantee.The left fixed plate
21 and the lower end of right fixed plate 22 be equipped with the threaded hole 25 for being connected and fixed plate fixing piece.
The middle section of the fixed spring seat 23 includes the left cylinder, intermediate cylindrical and right cone set gradually from left to right
Platform；The diameter of left cylinder is less than the diameter of intermediate cylindrical, and the diameter of intermediate cylindrical is equal to the maximum gauge of right frustum.The left circle
Column is installed in through-holes, and intermediate cylindrical is clipped between left and right fixed plate, and right frustum is mounted in the second taper hole, that is to say, that Gu
Determining the face that spring base is contacted with left fixed plate is plane, which plays good clamping action, fixed spring seat 23 and the right side
The face of fixed plate contact is the conical surface, which plays Self-centering Action.
Fastener hole is offered in the left fixed plate 21 and right fixed plate 22, is fixed on two fixed plates by screw 26
Together.The fixed spring seat 23 is clamped by left fixed plate 21, right fixed plate 22 and respective screws 26.
Below by taking Fig. 1 as an example, the specifically used process for introducing lower the utility model is：
In experiment, one end of spring 4 to be tested is screwed in the second spring fixing groove 24 in left fixed plate 21, it will be to
It tests 4 other end of spring to screw in the first spring fixing groove 15 on the driving assembly 1 of left side, all spring bases 14 screw-in is finished
Afterwards, sliding straight motor radiator is installed after the first taper hole in driving plate 12 is contacted with spring base thread segment corresponding position
Washer 1 and nut 17, so that spring to be tested 4 is accurately fixed between left fixed plate 21 and driving plate 12.It can in experiment
Installation fixation kit is chosen whether according to specific requirements, it is possible to understand that experimental provision is divided into left and right two at left and right two fixed plates
Part, two parts can carry out fatigue experiment respectively, that is, improve single experiment efficiency.It, can also be by if removing fixation kit
Spring base in the driving plate of two driving assemblies constitutes fatigue test device, at this point, increasing to wait spring tension and compression stroke to be tested
Originally twice, increase the scope of application of experimental provision.
When experiment, the power-supply controller of electric of linear motor is connected, linear motor starts to move reciprocatingly to treat experiment spring
Carry out fatigue experiment.The stroke of the reciprocating motion of linear motor can be controlled by power-supply controller of electric input voltage, travel values and
Moving back and forth number can be measured and be counted with counting device by laser measurement, meanwhile, the movement of linear motor designated position
Speed is exported by power-supply controller of electric to the power supply wave shape of linear motor（Such as harmonic wave, rectangular wave）It is controlled.I.e. theoretically
The actual condition of any spring can be simulated by the programming to power supply wave shape.
The utility model cooperates the positioning of pin, well by totally 4 pairs of pin holes in two fixed plates and two driving plates
Solves the problems, such as the relative position of the fixed spring seat in the spring base and fixation kit in driving assembly, so that experimental precision has
Great raising, it is ensured that during the experiment spring is not in radial deflection problem, to the accurate control spring of certain needs
The instrument of state has very high reproducibility.The self-centering cooperation of first taper hole and the second taper hole accurately controls spring installation
Position accuracy ensure that and treat and by self-centering and spring fixing groove the design of linear guide, sliding block, taper hole
The concentricity control for testing spring, so that form is controllable always during the motion for spring.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (8)
1. a kind of spring fatigue test device, it is characterised in that：Including rack components and symmetrically arranged two driving assemblies；Institute
Stating rack components includes bottom plate, the linear guide being mounted on above bottom plate middle section, be slidably matched respectively with linear guide two
Sliding block and two linear motor radiators being separately mounted to above two sliding blocks；The driving component includes being mounted on straight line
Linear motor in motor radiator, the driving plate on the inside of linear motor are installed through driving plate centre and and straight line
Several spring bases motor connected connecting rod and be mounted in driving plate；The spring base is equipped with the first spring and fixes
Slot.
2. a kind of spring fatigue test device according to claim 1, it is characterised in that：The device further includes fixed group
Part；The fixation kit includes left fixed plate, right fixed plate, several fixed spring seats and fixed plate fixing piece；The left fixation
The lower end of plate and right fixed plate passes through fixed plate fixing piece respectively and is connected on bottom plate；
Several through-holes are offered in the left fixed plate；Several second equal with number of openings are offered in the right fixed plate
Taper hole；Second positioning pin nail hole there are two being opened up in the left fixed plate and right fixed plate；
The left and right ends of the fixed spring seat are respectively equipped with second spring fixing groove；The middle part subpackage of the fixed spring seat
Include the left cylinder, intermediate cylindrical and right frustum set gradually from left to right；The diameter of left cylinder is less than the diameter of intermediate cylindrical, in
Between cylinder diameter be equal to right frustum maximum gauge；In through-holes, intermediate cylindrical is clipped in left and right fixation for the left cylinder installation
Between plate, right frustum is mounted in the second taper hole.
3. a kind of spring fatigue test device according to claim 1, it is characterised in that：The device further includes laser measurement
With counting device and power-supply controller of electric.
4. a kind of spring fatigue test device according to claim 1, it is characterised in that：The linear motor radiator packet
Include the upper radiator set gradually from up to down and lower radiator；The upper radiator is connected by bolt with lower radiator；Institute
Lower radiator is stated to be connected by screw on sliding block；The lower radiator is equipped with radiator fixing piece；The radiator is fixed
Part is connected by screw on bottom plate；Several waist holes for fixed heat sink are offered on the bottom plate；The linear motor
The linear motor mounting hole for fixed straight line motor is offered on radiator.
5. a kind of spring fatigue test device according to claim 1, it is characterised in that：It is offered among the driving plate
Central through hole；Symmetrically arranged two the first positioning pin nail hole and edge centered on central through hole are also provided in the driving plate
Equally distributed several first taper holes in central through hole periphery；
The outer end of the connecting rod is fixed after being threadedly coupled with the threaded hole that linear motor axial position is arranged in by screw
On linear motor, inner end passes through nut and washer locking in driving plate after passing through from central through hole；
The outer end of the spring base from the first taper hole pass through after by nut and washer locking in driving plate, and spring base with
The part that first taper hole matches is frustum, and first spring fixing groove is arranged along the periphery spiral of spring base inner end, and
The section of first spring fixing groove is semicircle.
6. a kind of spring fatigue test device according to claim 2, it is characterised in that：The left fixed plate and right fixation
Fastener hole is offered on plate, the left fixed plate and right fixed plate are connected by screw to together.
7. a kind of spring fatigue test device according to claim 2, it is characterised in that：Second spring fixing groove edge
The periphery spiral of fixed spring seat end is arranged, and the section of second spring fixing groove is semicircle.
8. a kind of spring fatigue test device according to claim 2, it is characterised in that：The fixed spring seat and a left side are solid
The face of fixed board contact is plane, and the face contacted with right fixed plate is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820510989.4U CN208140355U (en) | 2018-04-11 | 2018-04-11 | A kind of spring fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820510989.4U CN208140355U (en) | 2018-04-11 | 2018-04-11 | A kind of spring fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208140355U true CN208140355U (en) | 2018-11-23 |
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ID=64292368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820510989.4U Active CN208140355U (en) | 2018-04-11 | 2018-04-11 | A kind of spring fatigue test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318240A (en) * | 2018-04-11 | 2018-07-24 | 中国电子科技集团公司第十六研究所 | A kind of spring fatigue test device |
-
2018
- 2018-04-11 CN CN201820510989.4U patent/CN208140355U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318240A (en) * | 2018-04-11 | 2018-07-24 | 中国电子科技集团公司第十六研究所 | A kind of spring fatigue test device |
| CN108318240B (en) * | 2018-04-11 | 2024-06-21 | 中国电子科技集团公司第十六研究所 | Spring fatigue experimental device |
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