CN109916707A - A kind of thin-wall tube, which is bent, opens up integrated experimental rig and method - Google Patents
A kind of thin-wall tube, which is bent, opens up integrated experimental rig and method Download PDFInfo
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- CN109916707A CN109916707A CN201910211637.8A CN201910211637A CN109916707A CN 109916707 A CN109916707 A CN 109916707A CN 201910211637 A CN201910211637 A CN 201910211637A CN 109916707 A CN109916707 A CN 109916707A
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Abstract
It is bent the invention discloses a kind of thin-wall tube and opens up integrated experimental rig and method, be related to mechanical engineering technology test field, including flatten mechanism, bending mechanism, sensor；The flattening mechanism includes pressing plate, board, screw body, transmission mechanism, and the transmission mechanism is fixedly mounted on the right side of the board, and the pressing plate is movably installed in the left side of the board by the screw body；The quantity for flattening mechanism is more than or equal to 2, and the two neighboring top and bottom flattened between mechanism are respectively arranged with the bending mechanism；The bending mechanism includes the first connecting plate, the second connecting plate, shaft, bending transmission mechanism；The sensor includes pressure sensor, torque sensor.Integrated experimental rig of the invention, structure is simple, and operation and maintenance is convenient, it can be achieved that the long run test that large diameter thin wall beanpod bar, thin-wall circular tube are flattened, be bent, folded and unfolded, and records the mechanical state parameter during entire test.
Description
Technical field
The present invention relates to mechanical engineering technology test field more particularly to a kind of thin-wall tube bend open up integrated experimental rig and
Method.
Background technique
Deployable structure is the widely applied structural system of Large Spacecraft, and tradition mostly uses mechanical articulation system, machine
Tool pin-jointed system is mainly driven by motor, but the shortcomings that mechanical articulation system is mechanism complexity, and weight is big, and reliability is unfolded
It is low.With the development of material science and technology, research hotspot and hair are become based on the integrated deployable structure of material mechanism structure
Exhibition trend, using material high-performance composite materials, by the elasticity or shape memory of material, in ground folding material, emit into
After rail, elasticity energy or hot memory storage energy are discharged, to realize in-orbit expansion.For this kind of deployable structure, need
Sufficient unfolded mechanical test research and technical identification are carried out in advance.
" test of winding rib winding process and the mechanical behavior analysis " of the works such as Li Ruixiong discloses one by reel and rod axis
The experimental rig for squeezing hyacinth bean pod bar and winding, belongs to non-homogeneous flattening；" thin plate and the thin bar large deformation pure bending of the works such as Zhang Jinlong
Experimental rig and test " disclose the device that thin plate or thin bar simple bending, big corner may be implemented；The works such as Cai Qiyao " thoroughly
Mirror thin-walled tubular space mast, which flattens, draws flat numerical simulation and test " it discloses the flattening of beanpod bar or draws flat test, lead to
Uniaxial tensile and compression testing machine is crossed, cooperation bearing plate is realized and uniformly flattened in parallel.
" the A Simple Test Method for Large Deformation of the works such as Juan M.Fernandez
Bending of Thin High Strain Composite Flexures " four-point bending test device is disclosed, balances and matches
It retries and tests bending apparatus, the macrobending test of fine sheet may be implemented
It is above-mentioned prior art discloses needing to carry out the curved test specimen of small deformation for small size, can be by using 4 points
The testing machine of curve form is realized；Need to carry out the curved test specimen of large deformation for fine sheet, thin bar etc., it can be by designing work
Dress is realized by tooling combination testing machine, but be directed to complex geometry section, the biggish workpiece of scale continuously flattened and
Bending, while the technology of recording process data is also undisclosed.
Therefore, those skilled in the art, which is dedicated to developing a kind of thin-wall tube and bends, opens up integrated experimental rig and method.It is logical
The experimental rig and method are crossed, it can be achieved that large diameter thin wall beanpod bar, thin-wall circular tube are flattened, are bent, fold and are opened up
The long run test opened, and to the long run test of the flattening of thin-wall tube, the shape memory for being bent, folding and unfolding and recovery, it can
Effectively measure the mechanical state parameter during component is flattened, folded and unfolded.
Summary of the invention
In view of the above drawbacks of the prior art, thin to major diameter the technical problem to be solved by the present invention is to how to realize
Wall beanpod bar, thin-wall circular tube carry out the long run test flattening, be bent, folding and unfolding, and the flattening, curved of progress thin-wall tube
Bent, the shape memory folded and unfolded and recovery long run test, and can effectively measure component and flatten, fold and unfold process
In mechanical state parameter the problem of.
To achieve the above object, it is bent the present invention provides a kind of thin-wall tube and opens up integrated experimental rig, including flattening mechanism,
Bending mechanism, sensor；The flattening mechanism includes pressing plate, board, screw body, transmission mechanism, and the transmission mechanism is fixed
It is mounted on the right side of the board, the pressing plate is movably installed in the left side of the board by the screw body；The silk
Linkage includes screw rod, feed screw nut, and the screw rod is fixedly mounted on the pressing plate, the feed screw nut and the board structure
At revolute pair, the screw rod passes through the board by the feed screw nut；The feed screw nut and the screw rod constitute ball
Screw rod transmission pair or roller screw rod transmission pair；The quantity for flattening mechanism is more than or equal to 2, and each flattening mechanism is successively simultaneously
Row's setting, the two neighboring top and bottom flattened between mechanism are respectively arranged with the bending mechanism；The bending machine
Structure includes the first connecting plate, the second connecting plate, shaft, bending transmission mechanism, the flattening of first connecting plate and left side
The board of mechanism is fixedly connected, and second connecting plate is fixedly connected with the board of the flattening mechanism on right side；
The shaft and first connecting plate constitute revolute pair, and the shaft is fixedly connected with second connecting plate, two neighboring
The shaft of the bending mechanism of top and bottom between the flattening mechanism is coaxial；The sensor includes that pressure passes
Sensor, torque sensor；The pressure sensor is arranged in the flattening mechanism, and the torque sensor is arranged described curved
In bent mechanism.
Further, the flattening mechanism further includes backing plate, and the backing plate is plate, and the backing plate is arranged in the pressing plate
Between the board, the backing plate is fixedly mounted on the left side of the board.
Further, the groove that can be embedded in the backing plate is provided on the right side of the pressing plate.
Further, the upper and lower ends of the entrance side for flattening mechanism and outlet side are each provided with the screw rod machine
Structure, the center line of the screw rod is vertical with the backing plate, and the center line of the screw rod is parallel to each other.
Further, the transmission mechanism includes clamping motor, first bevel gear, second bevel gear, transmission shaft, support
Seat, third hand tap gear, the 4th bevel gear, the 5th bevel gear, the 6th bevel gear, the first bevel gear are fixedly mounted on the folder
On the output shaft of tight motor, the second bevel gear is fixedly mounted in the middle part of the transmission shaft, the fixed peace of the third hand tap gear
Mounted in the upper end of the transmission shaft, the 4th bevel gear is fixedly mounted on the lower end of the transmission shaft, the 5th cone
Gear is fixedly mounted on the end that the feed screw nut of the screw body of upper end is arranged in, and the 6th bevel gear is fixed
It is mounted on the end that the feed screw nut of the screw body of lower end is set, the first bevel gear and second cone
Gear constitutes Bevel Gear Transmission, and the third hand tap gear and the 5th bevel gear constitute Bevel Gear Transmission, the 4th cone tooth
Wheel and the 6th bevel gear constitute Bevel Gear Transmission, and the support base is fixedly mounted on the right side of the board, the branch
It supports seat and the transmission shaft constitutes revolute pair, the clamping motor is fixedly mounted on the right side of the board.
Further, the entrance side for flattening mechanism and outlet side are each provided with the transmission mechanism.
Further, the flattening mechanism further includes universal wheel, and the universal wheel is fixedly mounted on the pressing plate and described
The quantity of the lower end of board, the universal wheel of the pressing plate lower end is more than or equal to 2, the universal wheel of the board lower end
Quantity is more than or equal to 2.
Further, the bending transmission mechanism includes bending electric machine, first gear, second gear, the first gear
It is fixedly connected with the output shaft of the bending electric machine, the second gear is fixedly connected with one end of the shaft, first gear
Gear driving pair is constituted with second gear, the bending electric machine is fixedly mounted on first connecting plate, two neighboring described
The bending electric machine for flattening the bending mechanism of the top and bottom between mechanism is arranged symmetrically.
Further, the other end of the shaft is arranged in the torque sensor, and the pressure sensor is arranged described
Between backing plate and the board.
A method of it is bent using the thin-wall tube and opens up integrated experimental rig, included the following steps:
Step 1: the thin-wall tube is bent into the integrated experimental rig of exhibition and is placed in smooth and horizontal plane；
Step 2: debugging and calibrates the clamping motor, the bending electric machine and the biography of the integrated experimental rig
Sensor；
Step 3: by specimen holder between the pressing plate and the backing plate for flattening mechanism, and pass through the folder
Tight motor precompressed；
Step 4: flattening the clamping motor of mechanism described in synchronously control, keeps same between the adjacent flattening mechanism
Step flattens the test specimen, and the clamping motor stops after the test specimen reaches experimental design state；
Step 5: the adjacent bending electric machine flattened between mechanism of synchronously control drives and presses described in two adjacent groups
Flat mechanism is rotated around the shaft, to realize the bending for the test specimen being crushed；Pass through institute by sensor record
State step 3 to the step 5 the test specimen clamping and curved mechanical state parameter；
Step 6: according to the step 3 to the reverse order of the step 5, the mechanics of the rebound of the test specimen is measured
State parameter.
Compared with prior art, implementation through the invention at least has following advantageous effects:
1: thin-wall tube provided by the invention, which is bent, opens up integrated experimental rig and method, it can be achieved that large diameter thin wall beanpod
The long run test that bar, thin-wall circular tube are flattened, are bent, folded and unfolded, and record the mechanics shape during entire test
State parameter；
2: thin-wall tube provided by the invention, which is bent, opens up integrated experimental rig and method, it can be achieved that the flattening of thin-wall tube, curved
Bent, the shape memory folded and unfolded and recovery long run test, and record the mechanical state parameter during entire test；
3: thin-wall tube provided by the invention, which is bent, opens up integrated experimental rig, and structure is simple, and operation and maintenance is convenient.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram of a preferred embodiment of the invention；
Fig. 2 is the transmission mechanism schematic diagram of the flattening mechanism of a preferred embodiment of the invention；
Fig. 3 is the pressure sensor arrangement schematic diagram of a preferred embodiment of the invention；
Fig. 4 is the assembling schematic diagram of the bending mechanism of a preferred embodiment of the invention；
Fig. 5 is the bending original state schematic diagram of a preferred embodiment of the invention；
Fig. 6 is the bending intermediate state schematic diagram of a preferred embodiment of the invention；
Fig. 7 is 180 ° of bending status diagrams of a preferred embodiment of the invention.
Wherein, 1- flattening mechanism, 11- universal wheel, 12- pressing plate, 13- screw body, 14- board, 15- transmission mechanism,
The 6th bevel gear of 151-, the 4th bevel gear of 152-, 153- support base, 154- second bevel gear, 155- transmission shaft, 156- the 5th are bored
Gear, 157- third hand tap gear, 158- first bevel gear, 159- clamping motor, 2- bending mechanism, 21- bending electric machine, 22-
One connecting plate, 23- second gear, 24- shaft, the second connecting plate of 25-, 3- test specimen, 41- pressure sensor, 42- torque sensing
Device.
Specific embodiment
The preferred embodiment of the present invention is introduced below with reference to Figure of description, keeps its technology contents more clear and convenient for reason
Solution.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention is not limited only to text
In the embodiment mentioned.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and there is no limit by the present invention
The size and thickness of each component.Apparent in order to make to illustrate, some places suitably exaggerate the thickness of component in attached drawing.
Embodiment 1:
As shown in Figure 1, a kind of thin-wall tube provided in this embodiment, which is bent, opens up integrated experimental rig, including flatten mechanism 1, curved
Bent mechanism 2, sensor；Flattening mechanism 1 includes pressing plate 12, board 14, screw body 13, transmission mechanism 15, backing plate, and board 14 is
L-shaped member, transmission mechanism 15 are fixedly mounted on the right side of board 14, and pressing plate 12 is movably installed in board 14 by screw body 13
Left side；Screw body 13 includes screw rod, feed screw nut, and screw rod is fixedly mounted on pressing plate 12, feed screw nut and 14 structure of board
At revolute pair, screw rod passes through board 14 by feed screw nut；Feed screw nut and screw rod constitute ball leading screw driving pair or roller silk
Bar transmission, the present embodiment are preferably ball leading screw driving pair；Backing plate is plate, backing plate setting pressing plate 12 and board 14 it
Between, backing plate is fixedly mounted on the left side of board 14, and the right side of pressing plate 12 is provided with the groove that can be embedded in backing plate；Test specimen 3 clamps
Between the groove and backing plate on 12 right side of pressing plate；Sensor includes pressure sensor 41, torque sensor 42, as shown in figure 3, often
A flattening mechanism 1 is provided with 2 pressure sensors 41, and pressure sensor 41 is arranged between backing plate and board 14；Flatten mechanism 1
Entrance side and the upper and lower ends of outlet side be each provided with a screw body 13, the center line of the screw rod of four screw bodies 13
Vertical with backing plate, the center line of each screw rod is parallel to each other；Flatten the end face of the screw rod of the upper and lower ends of the entrance side of mechanism 1
The center of circle on same plumb line, flatten mechanism 1 outlet side upper and lower ends screw rod end face the center of circle in same vertical
On line.
As shown in Fig. 2, the entrance side and outlet side of flattening mechanism 1 are each provided with a transmission mechanism 15, transmission mechanism 15
Including clamping motor 159, first bevel gear 158, second bevel gear 154, transmission shaft 155, support base 153, third hand tap gear
157, the 4th bevel gear 152, the 5th bevel gear 156, the 6th bevel gear 151, first bevel gear 158 are fixedly mounted on clamping motor
On 159 output shaft, second bevel gear 154 is fixedly mounted on the middle part of transmission shaft 155, and third hand tap gear 157 is fixedly mounted on
The upper end of transmission shaft 155, the 4th bevel gear 152 are fixedly mounted on the lower end of transmission shaft 155, and the 5th bevel gear 156 is fixed
It is mounted on the end that the feed screw nut of screw body 13 of upper end is set, the 6th bevel gear 151, which is fixedly mounted on, to be arranged under
The end of the feed screw nut of the screw body 13 at end, first bevel gear 158 and second bevel gear 154 constitute Bevel Gear Transmission, the
Third hand tap gear 157 and the 5th bevel gear 156 constitute Bevel Gear Transmission, and the 4th bevel gear 152 and the 6th bevel gear 151 constitute cone tooth
Wheel transmission, support base 153 are fixedly mounted on the right side of board 14, and the quantity of support base 153 is 2, and two support bases 153 divide
Revolute pair She Zhi not be constituted in 154 two sides of second bevel gear, support base 153 and transmission shaft 155, clamping motor 159 is fixedly mounted
On the right side of board 14；The modulus of third hand tap gear 157 and the big end of the 4th bevel gear 152, pressure angle, the number of teeth and indexing cone angle
It is equal；The modulus of the big end of 5th bevel gear 156 and the 6th bevel gear 151, pressure angle, the number of teeth are equal with indexing cone angle；5th
The through-hole passed through convenient for screw rod is provided among bevel gear 156 and the 6th bevel gear 151.
It includes two flattening mechanisms 1 that the thin-wall tube of the present embodiment, which bends and opens up integrated experimental rig, and two flattening mechanisms 1 are successively
Horizontal Tile setting, the two neighboring top and bottom flattened between mechanism 1 are respectively arranged with a bending mechanism 2；Such as Fig. 4 institute
Show, bending mechanism 2 includes the first connecting plate 22, the second connecting plate 25, shaft 24, bending transmission mechanism, is bent transmission mechanism packet
Bending electric machine 21, first gear (not shown), second gear 23 are included, first gear and the output shaft of bending electric machine 21 are fixed
Connection, second gear 23 are fixedly connected with one end of shaft 24, and first gear and second gear 23 constitute gear driving pair, bending
Motor 21 is fixedly mounted on the first connecting plate 22；First connecting plate 22 is fixedly connected with the board 14 of the flattening mechanism 1 in left side,
Second connecting plate 25 is fixedly connected with the board 14 of the flattening mechanism 1 on right side；Shaft 24 and the first connecting plate 22 constitute revolute pair,
Shaft 24 is fixedly connected with the second connecting plate 25, and the two neighboring bending mechanism 2 for flattening the top and bottom between mechanism 1 turns
Axis 24 is coaxial, and the bending electric machine 21 of the bending mechanism 2 of top and bottom is symmetrical external；The another of shaft 24 is arranged in torque sensor 42
One end.
Flattening mechanism 1 further includes universal wheel 11, and universal wheel 11 is fixedly mounted on the lower end of pressing plate 12 and board 14, pressing plate 12
Lower end 2 universal wheels 11 are uniformly installed, the lower end of board 14 is uniformly equipped with 4 universal wheels 11；Each universal wheel 11 is
There is braking to lock and be freely rotated two kinds of working conditions.
The method for opening up integrated experimental rig is bent using the thin-wall tube of the present embodiment, is included the following steps:
Step 1: the thin-wall tube of the present embodiment is bent into the integrated experimental rig of exhibition and is placed in smooth and horizontal plane；
Step 2: debugging and clamping motor 159, bending electric machine 21 and each sensor for calibrating integrated experimental rig；
Step 3: test specimen 3 is clamped between each pressing plate 12 and backing plate for flattening mechanism 1, and passes through clamping motor 159
Precompressed, it is ensured that test specimen 3 is not fallen；As shown in Figure 5；
Step 4: synchronously control flattens the clamping motor 159 of mechanism 1, keeps synchronous between adjacent crush mechanism 1 and flattens examination
Part 3, clamping motor 159 stops after test specimen 3 reaches experimental design state；
Step 5: the bending electric machine 21 between synchronously control adjacent crush mechanism 1, driving two adjacent groups flatten mechanism 1 around
Shaft 24 rotates, to realize the bending for the test specimen 3 being crushed；Test specimen by sensor record by step 3 to step 5
3 clamping and curved whole mechanical state parameters；As shown in Figure 6 and Figure 7；
Step 6: according to the reverse order of step 3 to step 5, the mechanical state parameter of the rebound of test specimen 3 is measured.
Embodiment 2:
On the basis of embodiment 1, sensor further includes displacement sensor, and displacement sensor is configured as detection pressing plate 12
Relative distance between backing plate, displacement sensor can be set between pressing plate 12 and backing plate or on screw rod, and the present embodiment is excellent
Displacement sensor is selected as to be arranged on screw rod.
Embodiment 3:
On the basis of embodiment 1, the quantity for flattening mechanism 1 is 3, and 31 left, center, right of flattening mechanism are primary and arrange
It sets.
Embodiment 4:
On the basis of embodiment 1, the two neighboring respectively arranged bending mechanism in top and bottom flattened between mechanism 1
2 shaft 24 is coaxial and is fixedly connected, and two bending mechanisms 2 share a bending electric machine 21.
It should be appreciated that the ordinary skill of this field without creative work can it is according to the present invention design make it is many
Modifications and variations.Therefore, all technician in the art are under this invention's idea on the basis of existing technology by patrolling
Analysis, reasoning or the limited available technical solution of experiment are collected, it all should be in the protection model being defined in the patent claims
In enclosing.
Claims (10)
1. a kind of thin-wall tube, which is bent, opens up integrated experimental rig, which is characterized in that including flattening mechanism, bending mechanism, sensor；Institute
Stating and flattening mechanism includes pressing plate, board, screw body, transmission mechanism, and the transmission mechanism is fixedly mounted on the right side of the board
Side, the pressing plate are movably installed in the left side of the board by the screw body；The screw body includes screw rod, screw rod
Nut, the screw rod are fixedly mounted on the pressing plate, and the feed screw nut and the board constitute revolute pair, and the screw rod is logical
The feed screw nut is crossed across the board；The feed screw nut and the screw rod constitute ball leading screw driving pair or roller screw rod
Transmission；The quantity for flattening mechanism is more than or equal to 2, and each flattening mechanism is successively arranged side by side, two neighboring described
The top and bottom flattened between mechanism are respectively arranged with the bending mechanism；The bending mechanism includes the first connecting plate, the
The board of the flattening mechanism in two connecting plates, shaft, bending transmission mechanism, first connecting plate and left side is fixed to be connected
It connects, second connecting plate is fixedly connected with the board of the flattening mechanism on right side；The shaft and described first connects
Fishplate bar constitutes revolute pair, and the shaft is fixedly connected with second connecting plate, upper between the two neighboring flattening mechanism
The shaft of the bending mechanism at end and lower end is coaxial；The sensor includes pressure sensor, torque sensor；It is described
Pressure sensor is arranged in the flattening mechanism, and the torque sensor is arranged on the bending mechanism.
2. thin-wall tube as described in claim 1, which is bent, opens up integrated experimental rig, which is characterized in that the flattening mechanism further includes
Backing plate, the backing plate are plate, and the backing plate is arranged between the pressing plate and the board, and the backing plate is fixedly mounted on institute
State the left side of board.
3. thin-wall tube as claimed in claim 2, which is bent, opens up integrated experimental rig, which is characterized in that the right side of the pressing plate is arranged
There is the groove that can be embedded in the backing plate.
4. thin-wall tube as claimed in claim 3, which is bent, opens up integrated experimental rig, which is characterized in that the entrance for flattening mechanism
The upper and lower ends of side and outlet side are each provided with the screw body, and the center line of the screw rod is vertical with the backing plate,
The center line of the screw rod is parallel to each other.
5. thin-wall tube as claimed in claim 4, which is bent, opens up integrated experimental rig, which is characterized in that the transmission mechanism includes folder
Tight motor, first bevel gear, second bevel gear, transmission shaft, support base, third hand tap gear, the 4th bevel gear, the 5th bevel gear,
6th bevel gear, the first bevel gear are fixedly mounted on the output shaft of the clamping motor, and the second bevel gear is fixed
It is mounted in the middle part of the transmission shaft, the third hand tap gear is fixedly mounted on the upper end of the transmission shaft, the 4th cone tooth
Wheel is fixedly mounted on the lower end of the transmission shaft, and the 5th bevel gear is fixedly mounted on the screw rod machine that upper end is arranged in
The end of the feed screw nut of structure, the 6th bevel gear, which is fixedly mounted on, to be arranged in described in the screw body of lower end
The end of feed screw nut, the first bevel gear and the second bevel gear constitute Bevel Gear Transmission, the third hand tap gear and
5th bevel gear constitutes Bevel Gear Transmission, and the 4th bevel gear and the 6th bevel gear constitute Bevel Gear Transmission, institute
The right side that support base is fixedly mounted on the board is stated, the support base and the transmission shaft constitute revolute pair, the clamping
Motor is fixedly mounted on the right side of the board.
6. thin-wall tube as claimed in claim 5, which is bent, opens up integrated experimental rig, which is characterized in that the entrance for flattening mechanism
Side and outlet side are each provided with the transmission mechanism.
7. thin-wall tube as claimed in claim 6, which is bent, opens up integrated experimental rig, which is characterized in that the flattening mechanism further includes
Universal wheel, the universal wheel are fixedly mounted on the lower end of the pressing plate and the board, the universal wheel of the pressing plate lower end
Quantity be more than or equal to 2, the quantity of the universal wheel of the board lower end is more than or equal to 2.
8. thin-wall tube as claimed in claim 7, which is bent, opens up integrated experimental rig, which is characterized in that the bending transmission mechanism packet
Bending electric machine, first gear, second gear are included, the first gear is fixedly connected with the output shaft of the bending electric machine, described
Second gear is fixedly connected with one end of the shaft, and first gear and second gear constitute gear driving pair, the bending electricity
Machine is fixedly mounted on first connecting plate, the two neighboring bending machine for flattening the top and bottom between mechanism
The bending electric machine of structure is arranged symmetrically.
9. thin-wall tube as claimed in claim 8, which is bent, opens up integrated experimental rig, which is characterized in that the torque sensor setting
The other end of the shaft, the pressure sensor are arranged between the backing plate and the board.
10. a kind of bend the method for opening up integrated experimental rig using thin-wall tube as claimed in claim 9, include the following steps:
Step 1: the integrated experimental rig is placed in smooth and horizontal plane；
Step 2: debugging and calibrates the clamping motor, the bending electric machine and the sensor of the integrated experimental rig；
Step 3: by specimen holder between the pressing plate and the backing plate for flattening mechanism, and pass through the clamping electricity
Machine precompressed；
Step 4: flattening the clamping motor of mechanism described in synchronously control, keeps synchronous pressure between the adjacent flattening mechanism
The flat test specimen, the clamping motor stops after the test specimen reaches experimental design state；
Step 5: the adjacent bending electric machine flattened between mechanism of synchronously control drives flatting mill described in two adjacent groups
Structure is rotated around the shaft, to realize the bending for the test specimen being crushed；It is recorded by the sensor and passes through the step
Rapid three arrive the clamping and curved mechanical state parameter of the test specimen of the step 5；
Step 6: according to the step 3 to the reverse order of the step 5, the mechanical state of the rebound of the test specimen is measured
Parameter.
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| CN201910211637.8A CN109916707B (en) | 2019-03-20 | 2019-03-20 | Thin-walled pipe bending and unfolding integrated test device and method |
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| CN201910211637.8A CN109916707B (en) | 2019-03-20 | 2019-03-20 | Thin-walled pipe bending and unfolding integrated test device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117066169A (en) * | 2023-08-18 | 2023-11-17 | 青岛理研电线电缆有限公司 | Device and method for detecting outer diameter of electric wire of home appliance sheath |
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| CN109142090A (en) * | 2018-08-15 | 2019-01-04 | 天津大学 | A kind of tension and compression bending Multi-axial Loading fatigue experimental device |
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| CN117066169A (en) * | 2023-08-18 | 2023-11-17 | 青岛理研电线电缆有限公司 | Device and method for detecting outer diameter of electric wire of home appliance sheath |
| CN117066169B (en) * | 2023-08-18 | 2024-02-02 | 青岛理研电线电缆有限公司 | Device and method for detecting outer diameter of electric wire of home appliance sheath |
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