CN106198250A - The method of sheet material pure bending and equipment thereof - Google Patents
The method of sheet material pure bending and equipment thereof Download PDFInfo
- Publication number
- CN106198250A CN106198250A CN201610478382.8A CN201610478382A CN106198250A CN 106198250 A CN106198250 A CN 106198250A CN 201610478382 A CN201610478382 A CN 201610478382A CN 106198250 A CN106198250 A CN 106198250A
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- Prior art keywords
- pivoted arm
- contained
- claw
- sheet material
- chuck
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Classifications
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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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
-
- 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
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
Abstract
The present invention relates to method and the equipment thereof of a kind of sheet material pure bending, sheet material (9) is divided into left-handed pivoted arm (2) the most successively, sample length (3) and dextrorotation pivoted arm (5), it is separately fixed on fixed pivot (1) and sliding fulcrum (4) at the left end of above-mentioned left-handed pivoted arm (2) and the right-hand member of dextrorotation pivoted arm (5), fixed pivot (1) and sliding fulcrum (4) are in same level, left-handed pivoted arm (2) is identical with the length of dextrorotation pivoted arm (5), it is curved boom radius, left-handed pivoted arm (2) rotates θ counterclockwise around fixed pivot (1), dextrorotation pivoted arm (5) is while turning clockwise θ around sliding fulcrum (4), sliding fulcrum (4) slides along level as big as you please towards fixed pivot (1) direction, sample length (3) is made to carry out pure bending stress.
Description
Technical field
The present invention relates to method and the equipment thereof of a kind of sheet material pure bending, particularly one add for laboratory or sheet material
The method of the sheet material pure bending that work process uses and equipment thereof.
Background technology
Sheet material bending is production process conventional in daily production practices, and the quality of product depends on people to plate property
The understanding of feature, but there is no very good experimental provision and method sheet material measurement flexural property at present, although people in laboratory
Can be obtained by three-point bending etc., but because not forming the pure bending of enough sections on its sample, its experimental result is not
It is widely accepted, and the information of a lot of material internal is also impossible to effectively be excavated display.Set up one section of pure bending of structure
Loading environment be the basic demand of bending property of sheet material measurement, and these apparatus and method can realize this on board samples
Requirement.
Technology contents
Present invention aims to overcome that the shortcoming in the presence of prior art, and provides a kind of sheet material pure bending
Method and equipment thereof, it can make sheet material only have flexural deformation, and there is not other deformation.
In order to complete present invention purpose, the application by the following technical solutions:
The method of a kind of sheet material pure bending of the present invention, it is long that sheet material is divided into left-handed pivoted arm, sample the most successively
Degree and dextrorotation pivoted arm, be separately fixed at fixed pivot and sliding fulcrum at the left end of above-mentioned left-handed pivoted arm and the right-hand member of dextrorotation pivoted arm
On, fixed pivot and sliding fulcrum are in same level, and left-handed pivoted arm is identical with the length of dextrorotation pivoted arm, are curved boom half
Footpath, wherein: left-handed pivoted arm rotates θ counterclockwise around fixed pivot, dextrorotation pivoted arm is turning clockwise the same of θ around sliding fulcrum
Time, sliding fulcrum slides along level as big as you please towards fixed pivot direction so that sample is subjected only to pure bending moment of torsion, and it becomes
Shape is pure circular arc；
A kind of method of the sheet material pure bending of the present invention, wherein: described slip as big as you please refers at zerofriction force and sky
Under the state of atmidometer, sliding fulcrum is freely slidable on any particular location along level towards fixed pivot direction；
A kind of equipment of the sheet material pure bending of the present invention, wherein: it includes: frame, control system, be contained on fixed pivot
Device and the device that is contained on sliding fulcrum, wherein: described in the device that is contained on fixed pivot be fixed in frame, be contained in cunning
The device on device on activity supporting point is contained in frame and along housing slide, control system respectively be contained on fixed pivot
Device is connected with the device being contained on sliding fulcrum；
A kind of equipment of the sheet material pure bending of the present invention, wherein: described in the device that is contained on fixed pivot include: chuck,
Claw, catch jacket, torque sensor, fixed support and servo electric rotating machine, be fixed with limited bolt on chuck, and catch jacket is contained in
On limited bolt, forming grasping part, clamp the left-handed pivoted arm of sheet material in grasping part between claw, the outside of claw is wedge shape,
Catch jacket is sleeved on the outside of claw, drives built with tensioning screw, the rotary shaft of servo electric rotating machine at chuck and catch jacket
Chuck rotates in the horizontal plane, and fixed support is fixed in frame, and chuck is contained on fixed support, and torque sensor is contained in rotation
On axle；
A kind of equipment of the sheet material pure bending of the present invention, wherein: described in the device that is contained on sliding fulcrum include: chuck,
Claw, catch jacket, torque sensor, feed screw nut, slide rail, sliding support, servo mobile motor, ball screw and servo rotate
Motor, is fixed with limited bolt on chuck, and catch jacket is contained on limited bolt, forms grasping part between every pair of claw, at clamping sky
The dextrorotation pivoted arm of interior clamping sheet material, the outside of claw is wedge shape, and catch jacket is sleeved on the outside of claw, at chuck and catch jacket
Built with tensioning screw, the rotary shaft of servo electric rotating machine drives chuck to rotate in the horizontal plane, equipped with slide rail in frame, sliding
Dynamic support slides on slide rail, and chuck is contained on sliding support, and torque sensor fills on the rotary shaft, in the side of sliding support
Being also equipped with feed screw nut, servo mobile motor drives feed screw nut to slide along slide rail by ball screw, thus drives slip
Support slides along slide rail；
A kind of equipment of the sheet material pure bending of the present invention, wherein: described torque sensor, servo electric rotating machine and servo are moved
Galvanic electricity machine is connected with control system respectively；
A kind of equipment of the sheet material pure bending of the present invention, wherein: on the relevant position in chuck and catch jacket, have spiral shell
Hole, tensioning screw passes above-mentioned screw, and tensioning screw rotation in above-mentioned screw makes the grasping part clamping of claw or unclamps
Sheet material.
Compared with the method for existing sheet material pure bending and equipment thereof, the method for the sheet material pure bending of the present invention and equipment thereof
Have the advantage that
1, this device provides Based on Pure Bending Moment on sample sheet material, and makes sheet material obtain pure bending deformation, i.e. sheet deformation is
Pure arc-shaped, carries out record to the deformation process of sheet material, can directly obtain the relation of the moment-curvature of sheet material；
2, this device can directly or indirectly obtain the elastic recoil coefficient under any bent angle, i.e. can be from moment-curvature
Elastic recoil coefficient is obtained on curve；Or, when any stopping loads and is offloaded to zero moment of flexure, directly obtain elastic recoil
Coefficient；
3, material property can be visited by this device by the loading mode of loading → unloading → back-loading or various design
Beg for, such as: the Bauschinger effect etc. of sheet material is carried out experimentation, it is possible to carry out the experiment such as alternating bending, bending times.
Accompanying drawing explanation
Fig. 1 is in the method for sheet material pure bending of the present invention, before sheet material does not bends, and the signal of the held state of sheet material
Figure；
Fig. 2 is in the method for sheet material pure bending of the present invention, after sheet material bending, and the schematic diagram of the held state of sheet material；
Fig. 3 is the bowing to schematic diagram of sheet material pure bending equipment of the present invention；
The forward schematic diagram of Fig. 4 sheet material of the present invention pure bending equipment, for the sake of clarity, cuts open part in figure
Depending on.
In Fig. 1 to Fig. 4, label 1 is fixed pivot；Label 2 is left-handed pivoted arm；Label 3 is sample length；Label 4 is
Sliding fulcrum；Label 5 is left-handed pivoted arm；Label 6 is tensioning screw；Label 7 is catch jacket；Label 8 is claw；Label 9 is plate
Material；Label 10 is frame；Label 11 is limited bolt；Label 12 is feed screw nut；Label 13 is ball screw；Label 14 is servo
Mobile motor；Label 15 is torque sensor；Label 16 is chuck；Label 17 is fixed support；Label 18 is rotary shaft；Label
19 is servo electric rotating machine；Label 20 is control system；Label 21 is sliding support；Label 22 is slide rail；Label 23 is clamping
Space.
Detailed description of the invention
As depicted in figs. 1 and 2, sheet material 9 is divided into left-handed pivoted arm 2, sample length 3 and dextrorotation pivoted arm the most successively
5, it is separately fixed on fixed pivot 1 and sliding fulcrum 4 at the above-mentioned left end of left-handed pivoted arm 2 and the right-hand member of dextrorotation pivoted arm 5, fixing
Fulcrum 1 and sliding fulcrum 4 are in same level, and left-handed pivoted arm 2 is identical with the length of dextrorotation pivoted arm 5, are curved boom radius, left
Turning arm 2 rotates θ counterclockwise around fixed pivot 1, and dextrorotation pivoted arm 5 is while turning clockwise θ around sliding fulcrum 4, sliding
Activity supporting point 4 is when zerofriction force and air drag, and sliding fulcrum can free skating towards fixed pivot direction along level
Move on any particular location；Making sample be subjected only to pure bending moment of torsion, it is deformed into pure circular arc.
As shown in Figure 3 and Figure 4, the equipment of the sheet material pure bending of the present invention includes: frame 10, control system 20, be contained in solid
Determining the device on fulcrum 1 and the device being contained on sliding fulcrum 4, the device being contained on fixed pivot 1 is fixed in frame 10, dress
The device on device on sliding fulcrum 4 is contained in frame 10 and slides along frame 10, control system 20 respectively be contained in
Device on fixed pivot 1 is connected with the device being contained on sliding fulcrum 4.
The device being contained on fixed pivot 1 includes: chuck 16, claw 8, catch jacket 7, torque sensor 15, fixed support
17 and servo electric rotating machine 19, chuck 16 is fixed with limited bolt 11, claw 8 is sleeved on limited bolt 11, between every pair of claw 8
Forming grasping part 23, clamp the left-handed pivoted arm 2 of sheet material 9 in grasping part 23, the outside of claw 8 is wedge shape, and catch jacket 7 overlaps
Being contained in the outside of claw 8, the relevant position in chuck 16 and catch jacket 7 has screw, tensioning screw 6 is through above-mentioned spiral shell
Hole, the tensioning screw 6 rotation in above-mentioned screw makes the grasping part 23 of claw 8 clamp or unclamp sheet material 9, servo electric rotating machine
The rotary shaft 18 of 19 drives chuck 16 to rotate in the horizontal plane, and fixed support 17 is fixed in frame 10, and chuck 16 is contained in fixing
On support 17, torque sensor 15 is contained in rotary shaft 18, and torque sensor 15 and servo electric rotating machine 19 with control are respectively
System 20 is connected.
The device being contained on sliding fulcrum 4 includes: chuck 16, claw 8, catch jacket 7, torque sensor 15, feed screw nut
12, slide rail 22, sliding support 21, servo mobile motor 14, ball screw 13 and servo electric rotating machine 19, fixing on chuck 16
Limited location bolt 11, claw 8 is sleeved on limited bolt 11, forms grasping part 23 between claw 8, clamps sheet material in grasping part 23
The dextrorotation pivoted arm 5 of 9, the outside of claw 8 is wedge shape, and catch jacket 7 is sleeved on the outside of claw 8, in chuck 16 and catch jacket 7
Having screw on relevant position, tensioning screw 6 is through above-mentioned screw, and the tensioning screw 6 rotation in above-mentioned screw makes claw 8
Grasping part 23 clamps or unclamps sheet material 9, and the rotary shaft 18 of servo electric rotating machine 19 drives chuck 16 to rotate in the horizontal plane,
Equipped with slide rail 22 in frame 10, sliding support 21 slides on slide rail 22, and chuck 16 is contained on sliding support 21, torque sensor
15 are contained in rotary shaft 18, are also equipped with feed screw nut 12 in the side of sliding support 21, and servo mobile motor 14 passes through ball wire
Bar 13 drives feed screw nut 12 to slide along slide rail 22, thus drives sliding support 21 to slide along slide rail 22, torque sensor
15, servo electric rotating machine 19 is connected with control system 20 respectively with servo mobile motor 14.
Operation principle:
As it is shown on figure 3, first, the tensioning screw 6 at twisting two ends, make two catch jackets 7 move to center, by the two of sheet material
End is attached separately in the grasping part 23 of claw 8, then, the tensioning screw 6 at twisting two ends, make the outside sidesway of two catch jackets 7
Dynamic, left-handed pivoted arm 2 and the dextrorotation pivoted arm 5 of sheet material 9 are clamped in the grasping part 23 of claw 8, after sheet material 9 installs.Such as Fig. 4
Shown in, control system 20 sends a signal to two servo electric rotating machines 19 respectively, indicates two servo electric rotating machines 19 points
Rotate θ angle the most counterclockwise and turn clockwise θ angle, at two servo electric rotating machines 19 respectively counterclockwise and turn clockwise
While, control system 20 receives the rotary angle signal that rotary shaft 18 is real-time, after computing, show that sliding support 21 is being slided
Displacement real-time on rail 22, is then sent to servo mobile motor 14 by above-mentioned distance, and servo mobile motor 14 is by rolling
Ballscrew 13 drives feed screw nut 12 to slide along slide rail 22, thus drives sliding support 21 to slide along slide rail 22, until two
Till individual servo electric rotating machine 19 completes counterclockwise and turns clockwise.
Above description is explanation of the invention, is not the restriction to invention, and limited range of the present invention sees right
Requirement, in the case of the spirit of the present invention, the present invention can make the amendment of appropriate format.
Claims (7)
1. a method for sheet material pure bending, sheet material (9) is divided into left-handed pivoted arm (2), sample length (3) the most successively
With dextrorotation pivoted arm (5), it is separately fixed at fixed pivot (1) at the left end of above-mentioned left-handed pivoted arm (2) and the right-hand member of dextrorotation pivoted arm (5)
With on sliding fulcrum (4), fixed pivot (1) and sliding fulcrum (4) in same level, left-handed pivoted arm (2) and dextrorotation pivoted arm
(5) length is identical, is curved boom radius, it is characterised in that: left-handed pivoted arm (2) rotates θ counterclockwise around fixed pivot (1),
Dextrorotation pivoted arm (5) is while turning clockwise θ around sliding fulcrum (4), and sliding fulcrum (4) is along level towards fixed pivot
(1) slide as big as you please in direction so that sample is subjected only to pure bending moment of torsion, and it is deformed into pure circular arc.
2. the method for sheet material pure bending as claimed in claim 1, it is characterised in that: described slip as big as you please refers to without rubbing
Under the state of wiping power and air drag, sliding fulcrum (4) is freely slidable to arbitrary along level towards fixed pivot (1) direction
On ad-hoc location.
3. realizing an equipment for the method for sheet material pure bending described in claim 2, it includes: frame (10), control system
(20) device, being contained on fixed pivot (1) and the device being contained on sliding fulcrum (4), it is characterised in that be contained in fixing described in:
Device on fulcrum (1) is fixed in frame (10), the device being contained on the device on sliding fulcrum (4) be contained in frame (10) and
And slide along frame (10), control system (20) respectively with the device being contained on fixed pivot (1) and be contained in sliding fulcrum (4)
On device be connected.
4. equipment as claimed in claim 3, it is characterised in that the device being contained on fixed pivot (1) described in: includes: chuck
(16), claw (8), catch jacket (7), torque sensor (15), fixed support (17) and servo electric rotating machine (19), at chuck
(16) being fixed with limited bolt (11) on, claw (8) is sleeved on limited bolt (11), forms grasping part between every pair of claw (8)
(23), clamping the left-handed pivoted arm (2) of sheet material (9) in grasping part (23), the outside of claw (8) is wedge shape, and catch jacket (7) overlaps
It is contained in the outside of claw (8), at chuck (16) and catch jacket (7) built with tensioning screw (6), the rotation of servo electric rotating machine (19)
Rotating shaft (18) drives chuck (16) to rotate in the horizontal plane, and fixed support (17) is fixed in frame (10), and chuck (16) is contained in
On fixed support (17), torque sensor (15) is contained in rotary shaft (18).
5. equipment as claimed in claim 4, it is characterised in that the device being contained on sliding fulcrum (4) described in: includes: chuck
(16), claw (8), catch jacket (7), torque sensor (15), feed screw nut (12), slide rail (22), sliding support (21), servo
Mobile motor (14), ball screw (13) and servo electric rotating machine (19), be fixed with limited bolt (11), claw on chuck (16)
(8) it is sleeved on limited bolt (11), between claw (8), forms grasping part (23), in grasping part (23), clamp sheet material (9)
Dextrorotation pivoted arm (5), the outside of claw (8) is wedge shape, and catch jacket (7) is sleeved on the outside of claw (8), at chuck (16) and claw
Set (7) is built with tensioning screw (6), and the rotary shaft (18) of servo electric rotating machine (19) drives chuck (16) to revolve in the horizontal plane
Turning, equipped with slide rail (22) in frame (10), sliding support (21) is in the upper slip of slide rail (22), and chuck (16) is contained in sliding support
(21), on, torque sensor (15) is contained in rotary shaft (18), is also equipped with feed screw nut (12) in the side of sliding support (21),
Servo mobile motor (14) drives feed screw nut (12) to slide along slide rail (22) by ball screw (13), thus drives slip
Support (21) slides along slide rail (22).
6. equipment as claimed in claim 5, it is characterised in that: described torque sensor (15), servo electric rotating machine (19) and
Servo mobile motor (14) is connected with control system (20) respectively.
7. equipment as claimed in claim 6, it is characterised in that: open on the relevant position in chuck (16) and catch jacket (7)
Having screw, tensioning screw (6) passes above-mentioned screw, and the tensioning screw (6) rotation in above-mentioned screw makes the clamping sky of claw (8)
Between (23) clamp or unclamp sheet material (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610478382.8A CN106198250B (en) | 2016-06-27 | 2016-06-27 | The equipment for realizing plate pure bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610478382.8A CN106198250B (en) | 2016-06-27 | 2016-06-27 | The equipment for realizing plate pure bending |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106198250A true CN106198250A (en) | 2016-12-07 |
| CN106198250B CN106198250B (en) | 2019-04-23 |
Family
ID=57461922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610478382.8A Active CN106198250B (en) | 2016-06-27 | 2016-06-27 | The equipment for realizing plate pure bending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106198250B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225937A (en) * | 2018-01-30 | 2018-06-29 | 北方工业大学 | High-strength steel thin plate bending test method and its device |
| CN108303226A (en) * | 2017-01-13 | 2018-07-20 | 波音公司 | System and method for loading from lotus to test article |
| CN109100238A (en) * | 2018-09-06 | 2018-12-28 | 南京林业大学 | A kind of bamboo wood flexibility test method |
| CN109916736A (en) * | 2018-11-23 | 2019-06-21 | 北方工业大学 | The device and method of plate pure bending repeatedly |
| CN111267325A (en) * | 2020-02-19 | 2020-06-12 | 王若文 | Building insulation board and processing device and processing method thereof |
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| CN204988909U (en) * | 2015-07-31 | 2016-01-20 | 西安科技大学 | Compound loading test machine of panel torsional bending |
| CN105606907A (en) * | 2016-01-20 | 2016-05-25 | 西安电子科技大学 | Deformation experiment apparatus for smart skin antenna test |
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| CN108303226A (en) * | 2017-01-13 | 2018-07-20 | 波音公司 | System and method for loading from lotus to test article |
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| CN109100238A (en) * | 2018-09-06 | 2018-12-28 | 南京林业大学 | A kind of bamboo wood flexibility test method |
| CN109916736A (en) * | 2018-11-23 | 2019-06-21 | 北方工业大学 | The device and method of plate pure bending repeatedly |
| CN109916736B (en) * | 2018-11-23 | 2021-06-25 | 北方工业大学 | Equipment and method for pure bending plate repeatedly |
| CN111267325A (en) * | 2020-02-19 | 2020-06-12 | 王若文 | Building insulation board and processing device and processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106198250B (en) | 2019-04-23 |
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