CN106525585A - A bidirectional tension-compression testing machine and a bidirectional tension-compression testing method - Google Patents
A bidirectional tension-compression testing machine and a bidirectional tension-compression testing method Download PDFInfo
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- CN106525585A CN106525585A CN201611006988.8A CN201611006988A CN106525585A CN 106525585 A CN106525585 A CN 106525585A CN 201611006988 A CN201611006988 A CN 201611006988A CN 106525585 A CN106525585 A CN 106525585A
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
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- 230000002457 bidirectional effect Effects 0.000 title abstract 7
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- 230000008859 change Effects 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 16
- 238000009864 tensile test Methods 0.000 claims description 11
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
A bidirectional tension-compression testing machine and a bidirectional tension-compression testing method are provided. The testing machine includes a pedestal, an x-positive-direction lead screw module, an x-negative-direction lead screw module, a y-positive-direction lead screw module and a y-negative-direction lead screw module. The x-positive-direction lead screw module, the x-negative-direction lead screw module, the y-positive-direction lead screw module and the y-negative-direction lead screw module are fixedly arranged in a cross manner on the pedestal. The testing machine and the testing method are advantageous in that (1) the cross arrangement of the four lead screw modules lays a foundation for bidirectional tension tests of a cross test piece, synchronous control of servo motors achieves synchronous control of displacements of two groups of clamps at the axial direction, and bidirectional tension tests in loading paths with different ratios can be performed, and (2) the servo motors are adopted to provide power to the testing machine, bidirectional tension of cross test pieces and uniaxial tension of uniaxial tension test pieces can be accurately achieved and tension tests with a variable ratio and a variable load can be achieved.
Description
Technical field
The invention belongs to metal material mechanics performance test technical field, and in particular to a kind of two-direction pull press mechanics machine
And two-direction pull press mechanical test method.
Background technology
In recent years, biaxial tensile test technology has become a hot research problem in tension test field, particularly
The research of two-direction pull press mechanical test technology, has great significance to materials processing molding in industry.
At present, many cupping machines are had been developed that both at home and abroad, however, its device is more based on simple tension, it is many
Number adopts universal testing machine.As the testing of materials focuses primarily upon simple tension, in Practical Project, material is widely in multiple
Under combined stress state, this causes biaxial tensile test to seem increasingly important.
Additionally, existing two-direction pull press testing machine in world wide, is mainly based upon the two-direction pull press test of hydraulic control
Machine, with problems such as tension test precise control hardly possible, higher, the testing machine on-site sanitation condition differences of complexity of device.
The content of the invention
For the defect that prior art is present, the present invention provides a kind of two-direction pull press mechanics machine and two-direction pull press power
Test method is learned, can effectively solving the problems referred to above.
The technical solution used in the present invention is as follows：
The present invention provides a kind of two-direction pull press mechanics machine, including base (1), x forward direction leading screw module (2-1), x negative senses
Leading screw module (2-2), y forward directions leading screw module (2-3), y negative senses leading screw module (2-4)；
The base (1) includes middle lathe bed (1-1), x forward directions periphery lathe bed (1-2), x negative senses periphery lathe bed (1-3), y
Positive periphery lathe bed (1-4), y negative senses periphery lathe bed (1-5) and inter panel (1-6)；The middle lathe bed (1-1) is with center
Lathe bed region and the x forward direction end faces, x negative sense end faces, y forward direction end faces and the y that extend outward from the center lathe bed region are negative
To end face；The x forward direction end faces dock fixation with one end of x forward directions periphery lathe bed (1-2) by the 1st locating slot (1-7)；
The x negative senses end face docks fixation with one end of the x negative senses periphery lathe bed (1-3) by the 2nd locating slot；The y forward ends
Face fixation is docked with one end of y forward directions periphery lathe bed (1-4) by the 3rd locating slot；The y negative senses end face is fixed by the 4th
Position groove docks fixation with one end of the y negative senses periphery lathe bed (1-5)；So as to form cross circle distribution；
The inter panel (1-6) is fixedly installed in the center lathe bed region of the middle lathe bed (1-1)；The middle cover
Plate (1-6) is provided with location hole, for installing attachment device；
X forward directions leading screw module (2-1), the x negative senses leading screw module (2-2), y forward directions leading screw module (2-3)
It is fixed in cross-shaped arrangement on the base (1) with the y negative senses leading screw module (2-4).
Preferably, the base (1) also includes adjustment parallels (1-8)；Adjustment parallels (1-8) is separately mounted to described
Middle lathe bed (1-1), x forward directions periphery lathe bed (1-2), the x negative senses periphery lathe bed (1-3), y forward direction periphery lathe beds
(1-4), the bottom of the y negative senses periphery lathe bed (1-5), for adjusting the levelness of the base (1).
Preferably, x forward directions leading screw module (2-1) is fixed on above x forward directions periphery lathe bed (1-2)；The x
Negative sense leading screw module (2-2) is fixed on above the x negative senses periphery lathe bed (1-3)；Y forward directions leading screw module (2-3) is solid
It is scheduled on above y forward directions periphery lathe bed (1-4)；The y negative senses leading screw module (2-4) is fixed on the y negative senses edge bed
Above body (1-5).
Preferably, x forward directions leading screw module (2-1), the x negative senses leading screw module (2-2), y forward direction leading screw moulds
Group (2-3) is identical with the structure of the y negative senses leading screw module (2-4).
Preferably, for x forward directions leading screw module (2-1), including：Servomotor (2-1-1), planet wheel decelerator
(2-1-2), shaft coupling (2-1-3), bearing block (2-1-4), ball-screw (2-1-5), slide unit (2-1-6), pulling force sensor (2-
1-7), fixture (2-1-8) and base plate (2-1-12)；
The base plate (2-1-12) is arranged at the x forward direction periphery lathe beds of the base (1) by guide key groove mechanism (1-9)
(1-2), above, the base plate (2-1-12) is made linear sliding motion to be carried out along the base (1)；
The servomotor (2-1-1) is connected with one end of the planet wheel decelerator (2-1-2) by bolt, realizes subtracting
Fast function；The other end of the planet wheel decelerator (2-1-2) passes through shaft coupling (2-1-3) and the ball-screw (2-1-5)
It is connected, realizes the transmission of power；The bearing block (2-1-4) is fixed on the base plate (2-1-12), the ball-screw
(2-1-5) end face is assembled on the bearing block (2-1-4), by the bearing block (2-1-4), supports the ball-screw
(2-1-5)；The slide unit (2-1-6) is set on the ball-screw (2-1-5), and with the rotary motion of leading screw, slide unit enters
Row linear motion；The slide unit (2-1-6) is linked with the pulling force sensor (2-1-7) by attachment means, the pulling force
Sensor (2-1-7) is connected with the fixture (2-1-8) further through attachment means.
Preferably, x forward directions leading screw module (2-1) also includes limit switch (2-1-10)；Limit switch (the 2-1-
10) installed in the side of the ball-screw (2-1-5), for controlling the home that the slide unit (2-1-6) is moved.
Preferably, the setting quantity of the limit switch (2-1-10) is two, is respectively arranged in the slide unit (2-1-6)
The start position of motion and final position.
Preferably, x forward directions leading screw module (2-1) also includes grating scale (2-1-11)；The grating scale (2-1-11)
The side of the ball-screw (2-1-5) is arranged on, for the displacement of fixture described in surveying record (2-1-8).
Preferably, x forward directions leading screw module (2-1) also includes guide rail (2-1-9)；The guide rail (2-1-9) is arranged on
Below the slide unit (2-1-6) and the pulling force sensor (2-1-7), and the surface of the base plate (2-1-12) is installed on,
For providing support for the linear motion of the slide unit (2-1-6) and the pulling force sensor (2-1-7) and being oriented to.
The present invention also provides a kind of two-direction pull press mechanical test method using above-mentioned two-direction pull press mechanics machine, wraps
Include following steps：
Step S1, the fixture of x forward directions leading screw module (2-1), the fixture of x negative senses leading screw module (2-2), y forward direction leading screw moulds
The fixture of the fixture and y negative senses leading screw module (2-4) of group (2-3) is clamped respectively by four gripper edges of test test specimen；
Step S2, the input of host computer pulling force sensor respectively with each leading screw module, limit switch and grating
Chi connects；The outfan of host computer is connected with the servomotor of each leading screw module respectively；
Step S3, arranges initial parameter in host computer interface, including：The servomotor rotating speed of load, each leading screw module；
Step S4, host computer press initial parameter, drive the servomotor action of each leading screw module, in the drive of servomotor
Under dynamic, biaxial tension is carried out to test specimen, i.e.,：Simultaneously to x forward directions, x negative senses, y forward direction and y negative sense tensile test specimens；Also, to examination
During part carries out biaxial tension, the change letter of pulling force suffered by the pulling force sensor real-time detection to test specimen of each leading screw module
Breath, and the change information of pulling force suffered by test specimen is uploaded to into host computer in real time, preserved by host computer；In addition, to test specimen
During carrying out biaxial tension, the grating scale of each leading screw module measures the change in location information of slide unit in real time, and in real time
The change in location information of slide unit is uploaded to into host computer, is preserved by host computer；In addition, carrying out biaxial tension to test specimen
During, whether two limit switch real-time detection slide units reach shortest route and most Long travel, and then control each leading screw mould
The range of movement of group, it is ensured that Security of test；
Change in location information of the host computer by the change information and slide unit of pulling force suffered by association analysiss test specimen, obtain by
The biaxial tension performance of test block.
The two-direction pull press mechanics machine and two-direction pull press mechanical test method that the present invention is provided has advantages below：
The cross arrangement of (1) 4 group of leading screw module, is that the biaxial tensile test of cross test specimen is laid a good foundation, servomotor
Synchronization Control, realize the displacement synchronous control of homoaxial two groups of chucks, can complete under different proportion load path
Biaxial tensile test.
(2) this biaxial tensile test machine, provides power using servomotor, can accurately realize that biaxial tension cross is tried
Part and simple tension list draw test specimen, and realize the stretching experiment of control with changed scale, varying load.
(3) Serve Motor Control is convenient so that test reaches very high precision.
Description of the drawings
The dimensional structure diagram of the two-direction pull press mechanics machine that Fig. 1 is provided for the present invention；
Fig. 2 is two-direction pull press mechanical test machine base dimensional structure diagram；
Fig. 3 is perimeter lathe bed partial top view；
Fig. 4 is two-direction pull press mechanics machine left view；
Fig. 5 is leading screw module front view；
Fig. 6 is leading screw module top view.
Specific embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein only to
The present invention is explained, is not intended to limit the present invention.
The present invention provides a kind of two-direction pull press mechanics machine, can complete the biaxial tension under different proportion load path
Test.
The two-direction pull press mechanics machine that the present invention is provided, with reference to Fig. 1, including base 1, x forward direction leading screw module 2-1, x bear
To leading screw module 2-2, y forward direction leading screw module 2-3, y negative sense leading screw module 2-4.4 leading screw modules are bolted on base plate
On, base plate is placed in base top, and across circumferential arrangement.The present invention can carry out the tension and compression Experiments of Machanics of cross test specimen,
And stress and the deformation of real-time control measurement test specimen.The present invention can realize simple tension and biaxial tension, additionally with load
The functions such as lotus control, Bit andits control and strain controlling.
Separately below base and leading screw module are described in detail：
(1) base
With reference to Fig. 2-4, be the base schematic diagram of the present invention, base 1 include middle lathe bed 1-1, x forward direction periphery lathe bed 1-2,
X negative sense periphery lathe beds 1-3, y forward direction periphery lathe bed 1-4, y negative sense periphery lathe bed 1-5 and inter panel 1-6；
Middle lathe bed 1-1 there is center lathe bed region and extend outward from center lathe bed region x forward direction end faces, x
Negative sense end face, y forward direction end faces and y negative sense end faces；X forward direction end faces by the 1st locating slot 1-7 and x forward direction periphery lathe bed 1-2 one
End docking is fixed；X negative senses end face docks fixation with one end of x negative sense periphery lathe bed 1-3 by the 2nd locating slot；Y forward direction end faces lead to
Dock fixation in one end that the 3rd locating slot is crossed with y forward direction periphery lathe bed 1-4；Y negative senses end face is by the 4th locating slot and y negative sense peripheries
One end docking of lathe bed 1-5 is fixed；So as to form cross circle distribution；Wherein, docking fixed form can be solid by bolt
It is fixed.When middle lathe bed 1-1 is docked with each periphery lathe bed, positioned by locating slot, locating slot is set, its effect is to make
Between lathe bed and periphery lathe bed accurately install.
Inter panel 1-6 can be fixedly installed in the center lathe bed region of middle lathe bed 1-1 by screw；Inter panel 1-
6 are provided with location hole, for installing attachment device；
Base 1 also includes multigroup adjustment parallels 1-8；Adjustment parallels 1-8 is separately mounted to middle lathe bed 1-1, x forward direction periphery
The bottom of lathe bed 1-2, x negative sense periphery lathe bed 1-3, y forward direction periphery lathe bed 1-4, y negative sense periphery lathe bed 1-5, by adjustment
Parallels, with the levelness that just can easily adjust base.
In addition, middle lathe bed and periphery lathe bed are provided with guide key groove, and keyway docking, the base plate of screw mandrel module passes through
Guide key groove mechanism, can be moved along a straight line on base.
(2) leading screw module
X forward direction leading screw module 2-1, x negative sense leading screw module 2-2, y forward direction leading screw module 2-3 and y negative sense leading screw module 2-4
It is fixed in cross-shaped arrangement on base 1.
X forward direction leading screw module 2-1 are fixed on above x forward direction periphery lathe bed 1-2；X negative sense leading screw module 2-2 are fixed on x
Above negative sense periphery lathe bed 1-3；Y forward direction leading screw module 2-3 are fixed on above y forward direction periphery lathe bed 1-4；Y negative sense leading screws
Module 2-4 is fixed on above y negative sense periphery lathe bed 1-5.
X forward direction leading screw module 2-1, x negative sense leading screw module 2-2, y forward direction leading screw module 2-3 and y negative sense leading screw module 2-4
Structure it is identical.Only it is introduced by taking x forward direction leading screw modules as an example below：
With reference to Fig. 5 and Fig. 6, it is the leading screw module schematic diagram of the present invention, leading screw module 2-1 positive for x, including：Servo
Motor 2-1-1, planet wheel decelerator 2-1-2, shaft coupling 2-1-3, bearing block 2-1-4, ball-screw 2-1-5, slide unit 2-1-6,
Pulling force sensor 2-1-7, fixture 2-1-8 and base plate 2-1-12；
Base plate 2-1-12 is arranged above the x forward direction periphery lathe bed 1-2 of base 1 by guide key groove mechanism 1-9, makes bottom
Plate 2-1-12 can carry out linear sliding motion along base 1；
Servomotor 2-1-1 is connected with one end of planet wheel decelerator 2-1-2 by bolt, realizes deceleration；Planet
The other end of wheel decelerator 2-1-2 is connected with ball-screw 2-1-5 by shaft coupling 2-1-3, realizes the transmission of power；Bearing
Seat 2-1-4 is fixed on base plate 2-1-12, and the end face of ball-screw 2-1-5 is assembled on bearing block 2-1-4, by bearing block 2-
1-4, supports ball-screw 2-1-5；Therefore, leading screw module exports power by servomotor, is decelerated to by planet wheel decelerator
Suitable speed, and then be connected with ball-screw by shaft coupling, so as to drive ball screw turns.Slide unit 2-1-6 is set in
On ball-screw 2-1-5, with the rotary motion of leading screw, slide unit is moved along a straight line；Slide unit 2-1-6 is by attachment means and drawing
Force transducer 2-1-7 is linked, and pulling force sensor 2-1-7 is connected with fixture 2-1-8 further through attachment means.
X forward direction leading screw modules 2-1 also includes limit switch 2-1-10；Limit switch 2-1-10 is arranged on ball-screw 2-1-
5 side, for controlling the home of slide unit 2-1-6 motions.
The setting quantity of limit switch 2-1-10 is two, is respectively arranged in start position and the end of slide unit 2-1-6 motions
Point position.One limit switch, for limiting the stroke of slide unit, in order to avoid exceeding stroke, damage equipment, another limit switch are used
In shortest route is limited, collision is to avoid.
X forward direction leading screw modules 2-1 also includes grating scale 2-1-11；Grating scale 2-1-11 is arranged on ball-screw 2-1-5's
Side, for the displacement of surveying record fixture 2-1-8.
X forward direction leading screw modules 2-1 also includes guide rail 2-1-9；Guide rail 2-1-9 is arranged on slide unit 2-1-6 and pulling force sensor
Below 2-1-7, and the surface of base plate 2-1-12 is installed on, is transported for the straight line for slide unit 2-1-6 and pulling force sensor 2-1-7
Dynamic offer supports and is oriented to.
The characteristics of leading screw module, is as follows：
(1) leading screw module provides power with servomotor, and the performance of servomotor is good, has larger output torque and rotation
Inertia, can produce big acceleration and braking moment.
(2) deceleration device selects planet wheel decelerator, and relative to helical gear reducer, turbine and worm decelerator etc., other subtract
Fast device, the features such as planet wheel decelerator has high rigidity, high accuracy, high transmission efficiency, high moment of torsion/volume ratio.
(3) mechanical transmission component selects ball screw assembly, its precision highest, and have that rigidity is high, micro- cool feeding can be realized,
Heating it is little, be capable of achieving high speed feed the advantages of.
(4) leading screw module is provided with pulling force sensor, it is therefore intended that the real-time change of pulling force suffered by test cruciform specimen,
Its compact conformation, certainty of measurement are high, and offset load resistance is strong.
(5) two limit switches are installed in the side of leading screw module.Limit switch is used for controlling both direction, both ensures
Stroke of the slide unit not over grating scale, can guarantee that car accident again.
(6) grating scale is installed in the side of leading screw module, grating scale is fixed on base, and its effect is to measure slide block in real time
Change in location.Grating scale is selected, mainly because of its high resolution.
The present invention also provides a kind of two-direction pull press mechanical test method using above-mentioned two-direction pull press mechanics machine, wraps
Include following steps：
Step S1, the fixture of x forward direction leading screw module 2-1, the fixture of x negative sense leading screw module 2-2, y forward direction leading screw module 2-3
Fixture and y negative sense leading screw module 2-4 fixture clamp respectively by test test specimen four gripper edges；
Step S2, the input of host computer pulling force sensor respectively with each leading screw module, limit switch and grating
Chi connects；The outfan of host computer is connected with the servomotor of each leading screw module respectively；
Step S3, arranges initial parameter in host computer interface, including：The servomotor rotating speed of load, each leading screw module；
Step S4, host computer press initial parameter, drive the servomotor action of each leading screw module, in the drive of servomotor
Under dynamic, biaxial tension is carried out to test specimen, i.e.,：Simultaneously to x forward directions, x negative senses, y forward direction and y negative sense tensile test specimens；Also, to examination
During part carries out biaxial tension, the change letter of pulling force suffered by the pulling force sensor real-time detection to test specimen of each leading screw module
Breath, and the change information of pulling force suffered by test specimen is uploaded to into host computer in real time, preserved by host computer；In addition, to test specimen
During carrying out biaxial tension, the grating scale of each leading screw module measures the change in location information of slide unit in real time, and in real time
The change in location information of slide unit is uploaded to into host computer, is preserved by host computer；In addition, carrying out biaxial tension to test specimen
During, whether two limit switch real-time detection slide units reach shortest route and most Long travel, and then control each leading screw mould
The range of movement of group, it is ensured that Security of test；
Change in location information of the host computer by the change information and slide unit of pulling force suffered by association analysiss test specimen, obtain by
The biaxial tension performance of test block.
In sum, the present invention is provided two-direction pull press mechanics machine and two-direction pull press mechanical test method, have
Advantages below：
The cross arrangement of (1) 4 group of leading screw module, is that the biaxial tensile test of cross test specimen is laid a good foundation, servomotor
Synchronization Control, realize the displacement synchronous control of homoaxial two groups of chucks, can complete under different proportion load path
Biaxial tensile test.
(2) this biaxial tensile test machine, provides power using servomotor, can accurately realize that biaxial tension cross is tried
Part and simple tension list draw test specimen, and realize the stretching experiment of control with changed scale, varying load.
(3) Serve Motor Control is convenient so that test reaches very high precision.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
Depending on protection scope of the present invention.
Claims (10)
1. a kind of two-direction pull press mechanics machine, it is characterised in that including base (1), x forward directions leading screw module (2-1), x negative senses
Leading screw module (2-2), y forward directions leading screw module (2-3), y negative senses leading screw module (2-4)；
The base (1) is positive including middle lathe bed (1-1), x forward directions periphery lathe bed (1-2), x negative senses periphery lathe bed (1-3), y
Periphery lathe bed (1-4), y negative senses periphery lathe bed (1-5) and inter panel (1-6)；The middle lathe bed (1-1) is with center lathe bed
Region and the x forward direction end faces, x negative sense end faces, y forward direction end faces and the y negative ends that extend outward from the center lathe bed region
Face；The x forward direction end faces dock fixation with one end of x forward directions periphery lathe bed (1-2) by the 1st locating slot (1-7)；It is described
X negative senses end face docks fixation with one end of the x negative senses periphery lathe bed (1-3) by the 2nd locating slot；The y forward directions end face leads to
Dock fixation in one end that the 3rd locating slot is crossed with y forward directions periphery lathe bed (1-4)；The y negative senses end face passes through the 4th locating slot
Fixation is docked with one end of the y negative senses periphery lathe bed (1-5)；So as to form cross circle distribution；
The inter panel (1-6) is fixedly installed in the center lathe bed region of the middle lathe bed (1-1)；The inter panel
(1-6) location hole is provided with, for installing attachment device；
X forward directions leading screw module (2-1), the x negative senses leading screw module (2-2), y forward directions leading screw module (2-3) and institute
State y negative senses leading screw module (2-4) to be fixed in cross-shaped arrangement on the base (1).
2. two-direction pull press mechanics machine according to claim 1, it is characterised in that the base (1) also includes adjustment
Parallels (1-8)；Adjustment parallels (1-8) is separately mounted to the middle lathe bed (1-1), x forward direction periphery lathe bed (1-
2), the x negative senses periphery lathe bed (1-3), y forward directions periphery lathe bed (1-4), the bottom of the y negative senses periphery lathe bed (1-5)
Portion, for adjusting the levelness of the base (1).
3. two-direction pull press mechanics machine according to claim 1, it is characterised in that x forward directions leading screw module (2-1)
It is fixed on above x forward directions periphery lathe bed (1-2)；The x negative senses leading screw module (2-2) is fixed on the x negative senses periphery
Above lathe bed (1-3)；Y forward directions leading screw module (2-3) is fixed on above y forward directions periphery lathe bed (1-4)；It is described
Y negative senses leading screw module (2-4) is fixed on above the y negative senses periphery lathe bed (1-5).
4. two-direction pull press mechanics machine according to claim 3, it is characterised in that the x forward directions leading screw module (2-
1), the knot of the x negative senses leading screw module (2-2), y forward directions leading screw module (2-3) and the y negative senses leading screw module (2-4)
Structure is identical.
5. two-direction pull press mechanics machine according to claim 4, it is characterised in that for x forward direction leading screw modules
(2-1), including：Servomotor (2-1-1), planet wheel decelerator (2-1-2), shaft coupling (2-1-3), bearing block (2-1-4), rolling
Ballscrew (2-1-5), slide unit (2-1-6), pulling force sensor (2-1-7), fixture (2-1-8) and base plate (2-1-12)；
The base plate (2-1-12) is arranged at the x forward direction periphery lathe bed (1- of the base (1) by guide key groove mechanism (1-9)
2), above, the base plate (2-1-12) is made linear sliding motion to be carried out along the base (1)；
The servomotor (2-1-1) is connected with one end of the planet wheel decelerator (2-1-2) by bolt, realizes deceleration work(
Energy；The other end of the planet wheel decelerator (2-1-2) is connected with the ball-screw (2-1-5) by shaft coupling (2-1-3)
Connect, realize the transmission of power；The bearing block (2-1-4) is fixed on the base plate (2-1-12), the ball-screw (2-1-
5) end face is assembled on the bearing block (2-1-4), by the bearing block (2-1-4), supports the ball-screw (2-1-
5)；The slide unit (2-1-6) is set on the ball-screw (2-1-5), and with the rotary motion of leading screw, slide unit carries out straight line
Motion；The slide unit (2-1-6) is linked with the pulling force sensor (2-1-7) by attachment means, the pulling force sensor
(2-1-7) it is connected with the fixture (2-1-8) further through attachment means.
6. two-direction pull press mechanics machine according to claim 5, it is characterised in that x forward directions leading screw module (2-1)
Also include limit switch (2-1-10)；The limit switch (2-1-10) is used installed in the side of the ball-screw (2-1-5)
In the home that the control slide unit (2-1-6) is moved.
7. two-direction pull press mechanics machine according to claim 6, it is characterised in that the limit switch (2-1-10)
It is two to arrange quantity, is respectively arranged in start position and final position that the slide unit (2-1-6) is moved.
8. two-direction pull press mechanics machine according to claim 5, it is characterised in that x forward directions leading screw module (2-1)
Also include grating scale (2-1-11)；The grating scale (2-1-11) is arranged on the side of the ball-screw (2-1-5), for surveying
Amount records the displacement of the fixture (2-1-8).
9. two-direction pull press mechanics machine according to claim 5, it is characterised in that x forward directions leading screw module (2-1)
Also include guide rail (2-1-9)；The guide rail (2-1-9) is arranged on the slide unit (2-1-6) and the pulling force sensor (2-1-7)
Below, and the surface of the base plate (2-1-12) is installed on, for for the slide unit (2-1-6) and the pulling force sensor
(2-1-7) linear motion provides and supports and be oriented to.
10. the two-direction pull press mechanical test side of the two-direction pull press mechanics machine described in a kind of any one of application claim 1-9
Method, it is characterised in that comprise the following steps：
Step S1, the fixture of x forward directions leading screw module (2-1), the fixture of x negative senses leading screw module (2-2), y forward direction leading screw module (2-
3) fixture and the fixture of y negative senses leading screw module (2-4) is clamped respectively by four gripper edges of test test specimen；
Step S2, the input of host computer pulling force sensor respectively with each leading screw module, limit switch and grating scale connect
Connect；The outfan of host computer is connected with the servomotor of each leading screw module respectively；
Step S3, arranges initial parameter in host computer interface, including：The servomotor rotating speed of load, each leading screw module；
Step S4, host computer press initial parameter, drive the servomotor action of each leading screw module, in the driving of servomotor
Under, biaxial tension is carried out to test specimen, i.e.,：Simultaneously to x forward directions, x negative senses, y forward direction and y negative sense tensile test specimens；Also, to test specimen
During carrying out biaxial tension, the change letter of pulling force suffered by the pulling force sensor real-time detection to test specimen of each leading screw module
Breath, and the change information of pulling force suffered by test specimen is uploaded to into host computer in real time, preserved by host computer；In addition, to test specimen
During carrying out biaxial tension, the grating scale of each leading screw module measures the change in location information of slide unit in real time, and in real time
The change in location information of slide unit is uploaded to into host computer, is preserved by host computer；In addition, carrying out biaxial tension to test specimen
During, whether two limit switch real-time detection slide units reach shortest route and most Long travel, and then control each leading screw mould
The range of movement of group, it is ensured that Security of test；
The change in location information of change information and slide unit of the host computer by pulling force suffered by association analysiss test specimen, obtains tested
The biaxial tension performance of part.
Priority Applications (1)
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| CN201611006988.8A CN106525585A (en) | 2016-11-16 | 2016-11-16 | A bidirectional tension-compression testing machine and a bidirectional tension-compression testing method |
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| CN201611006988.8A CN106525585A (en) | 2016-11-16 | 2016-11-16 | A bidirectional tension-compression testing machine and a bidirectional tension-compression testing method |
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| CN201611006988.8A Pending CN106525585A (en) | 2016-11-16 | 2016-11-16 | A bidirectional tension-compression testing machine and a bidirectional tension-compression testing method |
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| CN107192519A (en) * | 2017-06-22 | 2017-09-22 | 浙江胜华波电器股份有限公司 | It is two-way to demonstrate,prove specified device for measuring force certainly |
| CN107271266A (en) * | 2017-08-24 | 2017-10-20 | 长春工业大学 | A kind of thin film stretching device |
| CN107727280A (en) * | 2017-08-28 | 2018-02-23 | 江苏大学 | The preparation method of single driving two-way tensile test apparatus and flexibility stress sensor |
| CN107941613A (en) * | 2017-11-15 | 2018-04-20 | 江苏铂影数据科技有限公司 | Biological respinse and soft tissue mechanics multifunctional testing integrated instrument |
| CN108037017A (en) * | 2017-12-11 | 2018-05-15 | 大连理工大学 | A kind of lead screw gear formula plate control with changed scale loading based on servomotor is double to draw pilot system |
| CN109323931A (en) * | 2018-12-21 | 2019-02-12 | 清华大学 | High/low temperature multiaxis in-situ tensile test machine |
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| CN107192519A (en) * | 2017-06-22 | 2017-09-22 | 浙江胜华波电器股份有限公司 | It is two-way to demonstrate,prove specified device for measuring force certainly |
| CN107271266A (en) * | 2017-08-24 | 2017-10-20 | 长春工业大学 | A kind of thin film stretching device |
| CN107727280B (en) * | 2017-08-28 | 2020-01-21 | 江苏大学 | Single-drive biaxial tension test device and manufacturing method of flexible stress sensor |
| CN107727280A (en) * | 2017-08-28 | 2018-02-23 | 江苏大学 | The preparation method of single driving two-way tensile test apparatus and flexibility stress sensor |
| CN107941613A (en) * | 2017-11-15 | 2018-04-20 | 江苏铂影数据科技有限公司 | Biological respinse and soft tissue mechanics multifunctional testing integrated instrument |
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| CN109342221A (en) * | 2018-12-13 | 2019-02-15 | 中科航空动力(株洲)装备制造研究院有限公司 | Fabric breaking strength test device |
| CN109323931A (en) * | 2018-12-21 | 2019-02-12 | 清华大学 | High/low temperature multiaxis in-situ tensile test machine |
| CN110095216A (en) * | 2019-05-31 | 2019-08-06 | 南京工程学院 | A kind of two dimension prestress application device and its working method |
| CN110095216B (en) * | 2019-05-31 | 2021-07-02 | 南京工程学院 | Two-dimensional prestress applying device and working method thereof |
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