CN207051100U - A kind of metal material bending test device - Google Patents
A kind of metal material bending test device Download PDFInfo
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- CN207051100U CN207051100U CN201721021820.4U CN201721021820U CN207051100U CN 207051100 U CN207051100 U CN 207051100U CN 201721021820 U CN201721021820 U CN 201721021820U CN 207051100 U CN207051100 U CN 207051100U
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Abstract
The utility model 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 utility model 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.
Utility model content：
The purpose of this utility model is to provide a kind of metal material bending test device, using the bend test device not
The resilience of sample after bend test is only avoided, and curved core mold diameter range is extended to Φ 180mm, big wall thickness can be carried out
The bend test of Large Diameter Pipeline sample；The bend test device is convenient to operation simultaneously, and personnel are quick, safely carry out curved core mold
And the replacing of guide rod.
In order to solve the above-mentioned technical problem, technical scheme is used by the utility model：A kind of metal material bending examination
Experiment device, including master cylinder, curved core, two side cylinders, two span adjusting meanss, span adjusting means track and guide rail, institute
State and First piston bar be provided with master cylinder, the First piston bar is connected by guide rod with the curved core, the guide rod with it is described
Guide rail is slidably connected；Second piston bar is provided with described two side cylinders, and is adjusted respectively with two spans by second piston bar
Regulating device connect, described two span adjusting meanss respectively be located at the span adjusting means track both ends, and with it is described
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 respectively provided with
There is sample placement platform, the sample placed on the sample placement platform is 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.
The beneficial effects of the utility model：
1st, the inside of the utility model span adjusting means is provided with side pressing block, after experiment, after exiting sample due to curved core
Two side pressing blocks continue firmly to compress sample, still give sample both sides certain pressure, make it with the angle after being bent
It is clipped in the middle, prevents curved core from exiting rear sample resilience, causes angle of bend situation not up to standard, avoid second order buckling.
2nd, the connection of the utility model guide rod and curved core is all " T " groove interference fit, and replacing is very convenient, so not only may be used
With according to by the requirement of curved sample is more quick, the curved core of replacing of safety, but also guide rod can be changed, with ensure use away from
From solving that space caused by needing to use big curved core due to large-sized sheet material, tubing is narrow and small or experimental rig accounts for
The excessive situation of ground area, curved core mold diameter range is set to be extended to Φ 180mm.
Brief description of the drawings：
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the utility model metal material bending test device.
Fig. 2 is the connection diagram of the utility model side cylinder and span adjusting means.
Fig. 3 is the connection diagram of the utility model span regulation scale and 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：
Be a kind of metal material bending test device of the present utility model as illustrated in fig. 1 and 2, 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, and the guide rod 12 slides with the guide rail 13
Connection；Second piston bar 31 is provided with described two side cylinders 3, and is filled respectively with two span regulations by second piston bar 31
Put 4 connections, described two span adjusting meanss 4 are located at the both ends of the span adjusting means track 7 respectively, and with it is described across
It is slidably connected away from adjusting means track 7；The inside of described two span adjusting meanss 4 is mounted on side pressing block 5, and inner side is respectively provided with
There is sample placement platform 41, the sample placed on the sample placement platform 41 is located at the underface of the curved core 2.
When carrying out sheet material or bending pipes experiment using the utility model, before experiment, both sides are first started according to specimen size
Oil cylinder 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 examination to suitable span
On sample placement platform 41；Then master cylinder 1 is started, master cylinder 1 promotes curved core 2 along guide rail 13 by connected guide rod 12
Forward slip, until sample is depressed into corresponding angle of bend, the maximum bend angle of the utility model tubing is 90 °, sheet material
Maximum bend angle be 180 °；After the completion of experiment, master cylinder 1 drives curved core 2 to be slided backward along guide rail 13, exits sample.
Continue firmly to compress sample because curved core 2 exits sample latter two side pressing block 5, still give sample both sides certain pressure,
Make it and be clipped in the middle with the angle after being bent, prevent curved core 2 from exiting rear sample resilience, cause angle of bend feelings not up to standard
Condition, after sample holding angle of bend is stepped up a period of time by two side pressing blocks 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 described in the utility model by screw connection, and described two
Individual outer limited block 10 is connected by displacement transducer with two side cylinders 3 respectively.After experiment, when two side pressing blocks 5 protect sample
Hold after angle of bend steps up a period of time, click on side cylinder 3, the displacement transducer being at this moment connected with two outer limited blocks 10 will
The position signalling of two outer limited blocks 10 is transmitted to side cylinder 3, side cylinder 3 will pull span adjusting means 4 and side pressing block 5 to move back
To relevant position.
Guide rod 12 described in the utility model is interference fitted by T grooves with curved core 2 and connected.The First piston bar 11 passes through company
Connect block 14 to be connected with guide rod 12, the contiguous block 14 is interference fitted with guide rod 12 using T grooves.Due to the company of guide rod 12 and curved core 2
It is all " T " groove interference fit to connect, and replacing is very convenient, so not only can be according to more quick, safe by the requirement of curved sample
The curved core 2 of replacing, but also guide rod 12 can be changed, to ensure to use distance, solved because large-sized sheet material, tubing need
The situation that space is narrow and small or experimental rig floor space is excessive caused by big curved core is used, makes curved core mold diameter model
Enclose and be extended 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 |
|---|---|---|---|
| CN201721021820.4U CN207051100U (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 |
|---|---|---|---|
| CN201721021820.4U CN207051100U (en) | 2017-08-16 | 2017-08-16 | A kind of metal material bending test device |
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| Publication Number | Publication Date |
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| CN207051100U true CN207051100U (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721021820.4U Active CN207051100U (en) | 2017-08-16 | 2017-08-16 | A kind of metal material bending test device |
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| CN (1) | CN207051100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827801A (en) * | 2018-04-28 | 2018-11-16 | 济南格仪器设备有限公司 | Multipurpose horizontal reinforcing steel bar bending tester |
-
2017
- 2017-08-16 CN CN201721021820.4U patent/CN207051100U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827801A (en) * | 2018-04-28 | 2018-11-16 | 济南格仪器设备有限公司 | Multipurpose horizontal reinforcing steel bar bending tester |
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