CN107478521A - A kind of metal material bending test device - Google Patents
A kind of metal material bending test device Download PDFInfo
- Publication number
- CN107478521A CN107478521A CN201710699498.9A CN201710699498A CN107478521A CN 107478521 A CN107478521 A CN 107478521A CN 201710699498 A CN201710699498 A CN 201710699498A CN 107478521 A CN107478521 A CN 107478521A
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- China
- Prior art keywords
- span
- sample
- span adjusting
- curved core
- metal material
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- 238000005452 bending Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000007769 metal material Substances 0.000 title claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000002474 experimental method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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
- G01N3/04—Chucks
-
- 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
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of metal material bending test device, including master cylinder, curved core, two side cylinders, two span adjusting meanss, span adjusting means track and guide rail, First piston bar is provided with the master cylinder, the First piston bar is connected by guide rod with curved core, and the guide rod is slidably connected with guide rail；Second piston bar is provided with described two side cylinders, and is connected respectively with two span adjusting meanss by second piston bar, described two span adjusting meanss are located at the both ends of span adjusting means track respectively, and are slidably connected with span adjusting means track；The inside of described two span adjusting meanss is mounted on side pressing block, inner side is provided with sample placement platform, the sample placed on sample placement platform is located at the underface of curved core, during experiment, curved core exits sample latter two side pressing block and still gives sample both sides certain pressure, make it and be clipped in the middle with the angle after being bent, prevent curved core from exiting rear sample resilience, avoid second order buckling.
Description
Technical field：
The invention belongs to technical field of test equipment, and in particular to a kind of metal material bending test device.
Background technology：
The bend test of metal material is a kind of engineer testing commonly used in metal material mechanics performance detection, and its method is
The axis of sample two-arm is maintained in the plane of bending axis, allows sample to be subjected to bending ductility deformation, does not change power
Direction is until sample is bent to whether desired angle, observation curved surface crack.Currently used Apparatus for Bending at low-temp
Solve the bend test demand of sheet material, but as the development of tubing industry, common Apparatus for Bending at low-temp are not suitable for small size
Bending pipes are tested, and are difficult to the bend specimen of pipe sample, are caused the bending property detection of small size tubing can not meet
Actual demand.
Application No. CN201320131192.0 Chinese utility model patent, patent name are a kind of Apparatus for Bending at low-temp,
Including oil cylinder, screw mandrel, piston rod is provided with the oil cylinder, the piston rod bottom is provided with pressure head, is installed on the right side of the screw mandrel
There is right branched roller seat, right branch roller is installed on the right branched roller seat, left branched roller seat and shaping oil cylinder, left branched roller seat are installed on the left of screw mandrel
On left branch roller is installed, the piston rod of the shaping oil cylinder is connected with left branch roller；It is provided between the left branch roller and right branch roller
Sample, and the sample is located at the underface of pressure head.Although the patent solves the problems, such as that sampling is inconvenient, but it is also present
The shortcomings that be：Sample bend test is being carried out, when pressure head exits sample, sample acts on without external force, due to inertia sample
Angle of bend can produce resilience, and the angle of bend after resilience may not be inconsistent standardization requirement, it is necessary to carry out second order buckling experiment,
This is also the problem of Apparatus for Bending at low-temp is present mostly at present.
Plus common vertical Apparatus for Bending at low-temp, because curved core (pressure head) direction of motion vertically downward, causes during use
It is extremely inconvenient during curved core that operating personnel change, and by curved core running space, and the limitation of substitute mode, it can not possibly use big straight
The curved core mold in footpath, lead to not the bend test for carrying out big wall thickness.
The content of the invention：
It is an object of the invention to provide a kind of metal material bending test device, is not only kept away using the bend test device
The resilience of sample after bend test is exempted from, and curved core mold diameter range is extended to Φ 180mm, the big pipe of big wall thickness can be carried out
The bend test of footpath sample；Simultaneously the bend test device be convenient to operation personnel are quick, safely carry out curved core mold and
The replacing of guide rod.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of bend test of metal materials dress
Put, including master cylinder, curved core, two side cylinders, two span adjusting meanss, span adjusting means track and guide rail, the master
First piston bar is provided with oil cylinder, the First piston bar is connected by guide rod with the curved core, the guide rod and the guide rail
It is slidably connected；Second piston bar is provided with described two side cylinders, and is filled respectively with two span regulations by second piston bar
Put connection, described two span adjusting meanss are located at the both ends of the span adjusting means track respectively, and with the span
Adjusting means track is slidably connected；The inside of described two span adjusting meanss is mounted on side pressing block, and inner side is provided with examination
Sample placement platform, the sample placed on the sample placement platform are located at the underface of the curved core.
Above-mentioned metal material bending test device also includes span regulation scale and two inner limited blocks, the span regulation
Scale and two inner limited blocks are respectively positioned on sample placement platform side, and described two inner limited blocks are adjusted by screw connection in span
The inner side of feast-brand mark chi, and be connected respectively by displacement transducer with two side cylinders.
There are two outer limited blocks, described two outer limited block difference in the outside of above-mentioned span regulation scale by screw connection
It is connected by displacement transducer with two side cylinders.
Above-mentioned guide rod is connected with curved core using T grooves interference fit.
Above-mentioned First piston bar is connected by contiguous block with guide rod, and the contiguous block is interference fitted with guide rod using T grooves.
Beneficial effects of the present invention：
1st, the inside of span adjusting means of the present invention is provided with side pressing block, after experiment, due to curved core exit sample latter two
Side pressing block continues firmly to compress sample, still gives sample both sides certain pressure, makes it and existed with the angle clamp after being bent
Centre, prevent curved core from exiting rear sample resilience, cause angle of bend situation not up to standard, avoid second order buckling.
2nd, the connection of guide rod of the present invention and curved core is all " T " groove interference fit, and replacing is very convenient, so not only can root
According to the curved core of replacing by the requirement of curved sample more fast, safe, but also guide rod can be changed, to ensure to use distance, solution
Space caused by needing to use big curved core due to large-sized sheet material, tubing of having determined is narrow and small or experimental rig floor space
Excessive situation, curved core mold diameter range is set to be extended to Φ 180mm.
Brief description of the drawings：
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of metal material bending test device of the present invention.
Fig. 2 is the connection diagram of side cylinder of the present invention and span adjusting means.
Fig. 3 is span regulation scale of the present invention and the connection diagram of inner limited block and outer limited block.
Description of reference numerals：1 master cylinder, 2 curved cores, 3 side cylinders, 4 span adjusting meanss, 5 side pressing blocks, 6 displacement transducers,
7 span adjusting means tracks, 8 span regulation scales, 9 inner limited blocks, 10 outer limited blocks, 11 First piston bars, 12 guide rods, 13 are led
Rail, 14 contiguous blocks, 31 second piston bars, 41 sample placement platforms.
Embodiment：
It is as illustrated in fig. 1 and 2 a kind of metal material bending test device of the present invention, including master cylinder 1,2, two, curved core
3, two span adjusting meanss 4 of side cylinder, span adjusting means track 7 and guide rail 13, first piston is provided with the master cylinder 1
Bar 11, the First piston bar 11 are connected by guide rod 12 with the curved core 2, and the guide rod 12 slides with the guide rail 13 to be connected
Connect；Be provided with second piston bar 31 in described two side cylinders 3, and by second piston bar 31 respectively with two span adjusting meanss
4 connection, described two span adjusting meanss 4 respectively be located at the span adjusting means track 7 both ends, and with the span
Adjusting means track 7 is slidably connected；The inside of described two span adjusting meanss 4 is mounted on side pressing block 5, and inner side is provided with
Sample placement platform 41, the sample placed on the sample placement platform 41 are located at the underface of the curved core 2.
When carrying out sheet material or bending pipes experiment using the present invention, before experiment, two side cylinders are first started according to specimen size
3, two side cylinders 3 promote two span adjusting meanss 4 and side pressing block 5 that sample at this moment is placed on into sample and put to suitable span
On horizontalization platform 41；Then start master cylinder 1, master cylinder 1 by connected guide rod 12 promote curved core 2 along guide rail 13 forward
Slide, until sample is depressed into corresponding angle of bend, the maximum bend angle of tubing of the present invention is 90 °, sheet material it is maximum curved
Bent angle is 180 °；After the completion of experiment, master cylinder 1 drives curved core 2 to be slided backward along guide rail 13, exits sample.Due to curved core 2
Exit sample latter two side pressing block 5 to continue firmly to compress sample, still give sample both sides certain pressure, make it with curved
Angle after song is clipped in the middle, and prevents curved core 2 from exiting rear sample resilience, causes angle of bend situation not up to standard, when two sides
After sample holding angle of bend is stepped up a period of time by briquetting 5, click on side cylinder 3 and retreat.
In order to which more accurately control span, the metal material bending test device also include the He of span regulation scale 8
Two inner limited blocks 9, the span regulation scale 8 and two inner limited blocks 9 are respectively positioned on the side of sample placement platform 41, and described two
Individual inner limited block 9, in the inner side of span regulation scale 8, and passes through displacement transducer 6 and two side oil respectively by screw connection
Cylinder 3 connects, as shown in Figure 3.Before experiment, on span regulation scale 8 adjust inner limited block 9 position to sample require across
Away from the position signalling of the inner limited block 9 sensed is transmitted to side cylinder 3, side oil by the displacement transducer 6 being connected with inner limited block 9
Cylinder 3 then automatically adjusts span according to the position of inner limited block 9, and span is accurately controlled so as to reach.
There are two outer limited blocks 10 in the outside of span regulation scale 8 of the present invention by screw connection, described two outer
Limited block 10 is connected by displacement transducer with two side cylinders 3 respectively.After experiment, when sample is kept curved by two side pressing blocks 5
After bent angle steps up a period of time, side cylinder 3 is clicked on, the displacement transducer being at this moment connected with two outer limited blocks 10 will be by two
The position signalling of individual outer limited block 10 is transmitted to side cylinder 3, and side cylinder 3 will pull span adjusting means 4 and side pressing block 5 to fall back on phase
Answer position.
Guide rod 12 of the present invention is interference fitted by T grooves with curved core 2 and connected.The First piston bar 11 passes through contiguous block
14 are connected with guide rod 12, and the contiguous block 14 is interference fitted with guide rod 12 using T grooves.Due to guide rod 12 and curved core 2 connection all
" T " groove interference fit, change it is very convenient, so not only can according to by the requirement of curved sample is more quick, safety more
Curved core 2 is changed, but also guide rod 12 can be changed, to ensure to use distance, is solved because large-sized sheet material, tubing need to make
The situation that space is narrow and small caused by big curved core or experimental rig floor space is excessive, expand curved core mold diameter range
Greatly to Φ 180mm.
Claims (5)
- A kind of 1. metal material bending test device, it is characterised in that：Including master cylinder (1), curved core (2), two side cylinders (3), two span adjusting meanss (4), span adjusting means track (7) and guide rail (13), first is provided with the master cylinder (1) Piston rod (11), the First piston bar (11) are connected by guide rod (12) with the curved core (2), the guide rod (12) with it is described Guide rail (13) is slidably connected；Second piston bar (31) is provided with described two side cylinders (3), and passes through second piston bar (31) point It is not connected with two span adjusting meanss (4), described two span adjusting meanss (4) are located at the span adjusting means rail respectively The both ends in road (7), and be slidably connected with the span adjusting means track (7)；Described two span adjusting meanss (4) it is interior Portion is mounted on side pressing block (5), and inner side is provided with sample placement platform (41), placed on the sample placement platform (41) Sample is located at the underface of the curved core (2).
- A kind of 2. metal material bending test device according to claim 1, it is characterised in that：The metal material bending Experimental rig also includes span regulation scale (8) and two inner limited blocks (9), is limited in the span regulation scale (8) and two Position block (9) is respectively positioned on sample placement platform (41) side, and described two inner limited blocks (9) are adjusted in span by screw connection and marked The inner side of chi 8, and be connected respectively by displacement transducer (6) with two side cylinders (3).
- A kind of 3. metal material bending test device according to claim 2, it is characterised in that：The span regulation scale (8) there are two outer limited blocks (10) in outside by screw connection, and described two outer limited blocks (10) pass through displacement sensing respectively Device is connected with two side cylinders (3).
- A kind of 4. metal material bending test device according to claim 1, it is characterised in that：The guide rod (12) with it is curved Core (2) is using the interference fit connection of T grooves.
- A kind of 5. metal material bending test device according to claim 1, it is characterised in that：The First piston bar (11) it is connected by contiguous block (14) with guide rod (12), the contiguous block (14) is interference fitted with guide rod (12) using T grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699498.9A CN107478521A (en) | 2017-08-16 | 2017-08-16 | A kind of metal material bending test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699498.9A CN107478521A (en) | 2017-08-16 | 2017-08-16 | A kind of metal material bending test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107478521A true CN107478521A (en) | 2017-12-15 |
Family
ID=60600627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710699498.9A Pending CN107478521A (en) | 2017-08-16 | 2017-08-16 | A kind of metal material bending test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107478521A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593427A (en) * | 2018-07-11 | 2018-09-28 | 天津泰格瑞祥仪器设备有限公司 | Clamping device |
| CN108645716A (en) * | 2018-07-11 | 2018-10-12 | 天津泰格瑞祥仪器设备有限公司 | Bend test system |
| CN111442995A (en) * | 2020-05-07 | 2020-07-24 | 吉林省英川科技有限公司 | Pure crooked experimental apparatus of sheet material |
| CN112067461A (en) * | 2020-08-24 | 2020-12-11 | 中国飞机强度研究所 | Composite material bending test device |
| CN113790978A (en) * | 2021-08-24 | 2021-12-14 | 河钢股份有限公司 | Sheet metal bending test device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935721A (en) * | 1975-02-28 | 1976-02-03 | B & W Manufacturing Company, Inc. | Tubing bending machine |
| CN2236132Y (en) * | 1995-03-10 | 1996-09-25 | 黄宗玉 | Metal bending test machine |
| CN1987409A (en) * | 2005-12-20 | 2007-06-27 | 上海华龙测试仪器有限公司 | Double work position steel bar cold bending test machine |
| CN201075073Y (en) * | 2007-07-20 | 2008-06-18 | 王志云 | Warp testing machine |
| CN102275711A (en) * | 2011-04-20 | 2011-12-14 | 武汉理工大学 | Synchronous belt drive-based span adjusting and workpiece conveying method and device |
| CN203164064U (en) * | 2013-03-21 | 2013-08-28 | 深圳万测试验设备有限公司 | Bending tester |
| CN205719812U (en) * | 2016-06-20 | 2016-11-23 | 江西晟威汽车零部件有限公司 | Automobile cold-forming shapes multifunctional test system |
| CN106837930A (en) * | 2017-03-06 | 2017-06-13 | 王安基 | Dump ram detection means and forging manipulator |
-
2017
- 2017-08-16 CN CN201710699498.9A patent/CN107478521A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935721A (en) * | 1975-02-28 | 1976-02-03 | B & W Manufacturing Company, Inc. | Tubing bending machine |
| CN2236132Y (en) * | 1995-03-10 | 1996-09-25 | 黄宗玉 | Metal bending test machine |
| CN1987409A (en) * | 2005-12-20 | 2007-06-27 | 上海华龙测试仪器有限公司 | Double work position steel bar cold bending test machine |
| CN201075073Y (en) * | 2007-07-20 | 2008-06-18 | 王志云 | Warp testing machine |
| CN102275711A (en) * | 2011-04-20 | 2011-12-14 | 武汉理工大学 | Synchronous belt drive-based span adjusting and workpiece conveying method and device |
| CN203164064U (en) * | 2013-03-21 | 2013-08-28 | 深圳万测试验设备有限公司 | Bending tester |
| CN205719812U (en) * | 2016-06-20 | 2016-11-23 | 江西晟威汽车零部件有限公司 | Automobile cold-forming shapes multifunctional test system |
| CN106837930A (en) * | 2017-03-06 | 2017-06-13 | 王安基 | Dump ram detection means and forging manipulator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593427A (en) * | 2018-07-11 | 2018-09-28 | 天津泰格瑞祥仪器设备有限公司 | Clamping device |
| CN108645716A (en) * | 2018-07-11 | 2018-10-12 | 天津泰格瑞祥仪器设备有限公司 | Bend test system |
| CN108645716B (en) * | 2018-07-11 | 2024-07-19 | 天津泰格瑞祥仪器设备有限公司 | Bending test system |
| CN111442995A (en) * | 2020-05-07 | 2020-07-24 | 吉林省英川科技有限公司 | Pure crooked experimental apparatus of sheet material |
| CN112067461A (en) * | 2020-08-24 | 2020-12-11 | 中国飞机强度研究所 | Composite material bending test device |
| CN113790978A (en) * | 2021-08-24 | 2021-12-14 | 河钢股份有限公司 | Sheet metal bending test device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20171215 |