CN220961015U - Be applicable to sheet metal high temperature cycle and draw and press testing arrangement - Google Patents
Be applicable to sheet metal high temperature cycle and draw and press testing arrangement Download PDFInfo
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- CN220961015U CN220961015U CN202322358823.9U CN202322358823U CN220961015U CN 220961015 U CN220961015 U CN 220961015U CN 202322358823 U CN202322358823 U CN 202322358823U CN 220961015 U CN220961015 U CN 220961015U
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- 238000012360 testing method Methods 0.000 title claims abstract description 87
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 238000007906 compression Methods 0.000 claims abstract description 38
- 230000007704 transition Effects 0.000 claims abstract description 35
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims description 15
- 230000002265 prevention Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000368 destabilizing effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
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Abstract
The utility model relates to a high-temperature cyclic tension and compression testing device suitable for a metal plate, which comprises a clamping force transmission part and an anti-compression instable part, wherein the clamping force transmission part is used for clamping a fixed section and an arc transition section of the plate, a pre-clamping force and cyclic tension pressure are provided for a test piece, the anti-compression instable part can only freely slide in the compression direction of the plate under the joint constraint of a screw rod and a bolt, a constraint force for resisting out-of-plane instability of the plate is generated in the thickness direction of the plate, the anti-compression instable part is connected with the clamping force transmission part through the screw rod, and the phenomenon that the plate is inclined due to out-of-plane dislocation of the upper and lower clamping force transmission parts in the tension and compression testing process is avoided. The utility model is suitable for a series of tests of the hysteresis performance of the sheet metal test piece at normal temperature and high temperature, has the advantages of simple structure, convenient disassembly and assembly, easy operation and strong universality, and has extremely important practical significance for the hysteresis performance influence test of the sheet metal test piece at high temperature.
Description
Technical Field
The utility model relates to the technical field of mechanical property testing of metal materials, in particular to a device and a method for testing tension clamping force transmission under the condition of high temperature and pressure instability of metal plates such as common steel, stainless steel and aluminum alloy.
Background
The accurate evaluation of the mechanical properties of the material has very important significance for the safety design of parts or components in the mechanical field, the aerospace field, the civil engineering field and the like, the basic mechanical properties of the metal material at room temperature, such as yield strength, ultimate tensile strength, elastic modulus, ultimate deformability and the like, can be generally obtained through a unidirectional tensile test, but the actual working conditions of the metal material are too complex, and the normal load rate, load characteristics, temperature environment and the like have great influence on the mechanical properties of the metal material. The mechanical behavior of the metal plate under the actions of different high temperatures and cyclic loads is accurately obtained, and the method is particularly important for the safety design of parts. The size of a plate test piece used in the traditional unidirectional tensile test is far smaller than that of other two directions because of the thickness direction, and the plate test piece can be unstable when bearing axial pressure. One solution to this problem is to reduce the effective length of the linear specimen, which, while avoiding compressive instability of the specimen, has a certain effect on the ultimate fracture failure of the panel under cyclic loading.
Based on the above, the utility model provides the novel destabilization prevention and clamping auxiliary testing device which is simple in structure, convenient to assemble and disassemble, easy to operate, strong in universality and suitable for high temperature, and the device is arranged in an electric high temperature furnace, so that the property test of the metal plate under the actions of different temperatures and cyclic loads can be realized.
Disclosure of utility model
The utility model aims to overcome the problems in the prior art and provide a high-temperature cyclic tension-compression testing device suitable for a metal plate, wherein steel plates are clamped at two ends of the device to be high-temperature resistant stainless steel thick plates, grooves with the same cross-sectional shape as the end parts of a linear sample are milled on the stainless steel thick plates at the end parts, the end parts of the linear sample are reliably connected by internally arranging high-temperature resistant stainless steel bolts, a certain number of high-temperature resistant stainless narrow plates and round bars are arranged in a middle testing area of the linear sample to prevent the linear sample from being unstable in the compression process, and a preset temperature load is implemented by an electric high-temperature furnace.
In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme:
The utility model provides a be applicable to sheet metal high temperature cycle and draw and press testing arrangement, its characterized in that, this device includes first end connecting plate, first tubular member, first transition plate, second end connecting plate, second tubular member and second transition plate, wherein:
One end of the first tubular member is fixedly connected to the end face of the first end connecting plate, the other end of the first tubular member is fixedly connected to one end face of the first transition plate, and the second end connecting plate, the second tubular member and the second transition plate are identical in structure with the first end connecting plate, the first tubular member and the first transition plate and are symmetrically arranged;
A first clamping force transmission piece is fixedly connected to the other end face of the first transition plate, a third clamping force transmission piece is arranged on one side of the first clamping force transmission piece, a second clamping force transmission piece is fixedly connected to the end face, opposite to the first transition plate, of the second transition plate, and a fourth clamping force transmission piece is arranged on one side of the second clamping force transmission piece;
a plurality of anti-compression instability parts are respectively arranged between the first clamping force transmission part and the second clamping force transmission part and between the third clamping force transmission part and the fourth clamping force transmission part, and a plurality of screw rods are slidably connected between the opposite clamping force transmission parts and the anti-compression instability parts in a penetrating way;
And test piece grooves matched with the corresponding test piece in shape are formed in the first clamping force transmission piece, the second clamping force transmission piece and the fourth clamping force transmission piece.
Further, the first clamping force transmission piece, the second clamping force transmission piece, the third clamping force transmission piece, the fourth clamping force transmission piece and the compression instability prevention piece between the first clamping force transmission piece and the third clamping force transmission piece are provided with a plurality of screw through holes, and the compression instability prevention piece is connected with the corresponding clamping force transmission piece in a sliding mode of the screw in the screw through holes.
Further, a plurality of bolt through holes are formed in the test piece groove, and the clamping force transmission piece is used for fixing the test piece in the test piece groove through the bolt through holes and corresponding bolts, so that the pre-clamping force is conveniently applied to the test piece.
Further, screw holes are formed in the first end connecting plate and the second end connecting plate, and the first end connecting plate and the second end connecting plate are connected with the upper workbench and the lower workbench of the corresponding testing machine respectively through the screw holes and bolts.
Furthermore, the transition plate and the clamping force transmission piece are fixedly connected in a single-side split welding mode.
The beneficial effects of the utility model are as follows:
(1) The utility model mainly consists of two parts, namely clamping force transmission part and instability prevention part, has simple structure and convenient disassembly and assembly, is installed in advance before the test starts, does not need to carry out manual operation in the test process, and reduces unnecessary errors in the test process.
(2) The utility model can be used for carrying out unidirectional stretching and cyclic loading tests on metal plates of common steel, stainless steel, aluminum alloy and the like with different thicknesses and lengths and different materials, and has higher universality;
(3) The material can be stainless steel S316, so that the device can be used for testing at room temperature and also for cyclic loading testing of metal material samples at high temperature, and has very high practicability;
(4) According to the utility model, a certain number of anti-compression instable pieces are arranged to replace a whole steel plate, so that the sliding friction force between the device and the metal material test piece is obviously reduced, meanwhile, the problem of compression expansion of the metal material test piece is considered, the accuracy of a test result is improved, and the anti-compression instable device has important practical significance for testing the mechanical properties of materials.
Drawings
FIG. 1 is an overall front view of the apparatus of the present utility model with a high temperature furnace;
FIG. 2 is a right side view of the apparatus of the present utility model with a high temperature furnace;
FIG. 3 is a schematic view of a three-dimensional split structure of the device of the present utility model;
FIG. 4 is a schematic view of the split structure of the clamping force-transmitting member, the compression-instability preventing member and the screw in the device of the present utility model;
FIG. 5 is a detailed view of the screw through hole, the bolt through hole and the test piece groove in the device of the present utility model;
Fig. 6 is a high Wen Lujie schematic.
The reference numerals in the figures illustrate: 1-2, a first end connection plate to a second end connection plate; 3-4, a first tubular member to a second tubular member; 5-6, a first transition plate to a second transition plate; 7-10, the first clamping force transfer piece to the fourth clamping force transfer piece; 11-16, first through sixth compression destabilizing prevention members; 17-24, first screw to eighth screw; 25-32, first screw through hole to eighth screw through hole; 33-48, first through sixteenth bolt through holes; 49-60, seventeenth to twenty-eighth bolt through holes; 61-62, the first test piece groove to the second test piece groove; 63-64, the first high temperature furnace to the second high temperature furnace.
Detailed Description
The utility model will be described in detail below with reference to the drawings in combination with embodiments.
As shown in fig. 1 to 3, a high-temperature cyclic tension-compression testing device suitable for metal plates is characterized in that the device comprises a first end connecting plate 1, a first tubular member 3, a first transition plate 5, a second end connecting plate 2, a second tubular member 4 and a second transition plate 6, in this embodiment, each end connecting plate adopts a rectangular steel plate, each tubular member adopts a circular tubular member, each transition plate adopts a circular transition plate, the length and the diameter of the circular tubular member can be set according to practical testing requirements, and the length and the diameter of the circular transition plate are adaptively set according to the sizes of the upper surface and the lower surface of a clamping force transmission piece, wherein:
One end of the first tubular member 3 is fixedly connected to the end face of the first end connecting plate 1, the other end of the first tubular member is fixedly connected to one end face of the first transition plate 5, and the second end connecting plate 2, the second tubular member 4 and the second transition plate 6 are identical in structure and symmetrically arranged with the first end connecting plate 1, the first tubular member 3 and the first transition plate 5;
A first clamping force transfer piece 7 is fixedly connected to the other end face of the first transition plate 5, a third clamping force transfer piece 9 is arranged on one side of the first clamping force transfer piece 7, no welding is performed between the first transition plate 5 and the third clamping force transfer piece 9, a second clamping force transfer piece 8 is fixedly connected to the end face, opposite to the first transition plate 5, of the second transition plate 6, a fourth clamping force transfer piece 10 is arranged on one side of the second clamping force transfer piece 8, and no welding is performed between the second transition plate 6 and the fourth clamping force transfer piece 10;
As shown in fig. 2 and fig. 4, a plurality of anti-compression instability pieces are respectively arranged between the first clamping force transmission piece 7 and the second clamping force transmission piece 8 and between the third clamping force transmission piece 9 and the fourth clamping force transmission piece 10, in this embodiment, a first anti-compression instability piece 11 to a third anti-compression instability piece 13 are arranged between the first clamping force transmission piece 7 and the second clamping force transmission piece 8, a fourth anti-compression instability piece 14 to a sixth anti-compression instability piece 16 are arranged between the third clamping force transmission piece 9 and the fourth clamping force transmission piece 10, a plurality of screws are slidably connected between each opposite clamping force transmission piece and each anti-compression instability piece in a penetrating manner, in this embodiment, as shown in fig. 4, each clamping force transmission piece is not directly connected with each anti-compression instability piece, the first clamping force transmission piece 7, the first anti-compression instability piece 11 to the third anti-compression instability piece 13, the second clamping force transmission piece 8 are vertically connected into a group by the first screw 17 to the fourth screw 20, and the third clamping force transmission piece 9, the fourth screw 16 and the fourth screw 21 to the eighth anti-compression instability piece are vertically connected into another group by the fourth screw 21 to the eighth anti-compression instability piece 10;
As shown in fig. 5, the first to fourth clamping force transfer members 7 to 10 are provided with test piece grooves matching the corresponding test piece shapes, in this embodiment, the first clamping force transfer member 7 is provided with a first test piece groove 61, and the third clamping force transfer member 9 is provided with a second test piece groove 62 as two grooves for placing test pieces.
As shown in fig. 5, the first clamping force transmitting member 7 to the fourth clamping force transmitting member 10 and the compression-instability preventing members therebetween are provided with a plurality of screw through holes, wherein the first screw through hole 25 to the eighth screw through hole 32 are vertically arranged on each clamping force transmitting member and compression-instability preventing member, the compression-instability preventing members are connected with the corresponding clamping force transmitting members in a sliding mode of the screw through holes, in this embodiment, the compression-instability preventing members are also provided with screw through holes, the screw through holes are arranged at positions of each compression-instability preventing member close to two ends and are perpendicular to the screw through holes, corresponding screws are screwed in the screw through holes, so that the laterally adjacent compression-instability preventing members are connected together, as shown in fig. 5, seventeenth screw through holes 49 to twenty eighth screw through holes 60 are arranged on each compression-instability preventing member, for example, the same screw is penetrated into seventeenth screw through holes 49 and twenty-third screw through holes 55, and the laterally adjacent first compression-instability preventing members 11 can be connected with the fourth compression-instability preventing member 14.
As shown in fig. 5, the test piece grooves are provided with a plurality of bolt through holes, the clamping force transmission piece fixes the test piece in the test piece grooves through the bolt through holes and corresponding bolts, so as to apply pre-clamping force to the test piece.
Screw holes are formed in the first end connecting plate 1 and the second end connecting plate 2, and the first end connecting plate and the second end connecting plate are respectively connected with corresponding upper and lower working tables of the testing machine through the screw holes and bolts.
The transition plate and the clamping force transmission piece are fixedly connected in a single-side split welding mode.
At the time of testing, the following procedure may be performed:
1. Before the test starts, placing a test piece into a test piece groove for clamping the force transmission piece, fixing the test piece by adopting a corresponding bolt, and applying a pre-clamping force to the test piece;
2. The test machine is adopted to provide a cyclic tension-compression load effect for the test piece, the upper workbench and the lower workbench of the test machine transmit tension to the test piece through the clamping force transmission piece, namely, when the load acting direction is upward, the test piece is subjected to upward tension effect, when the load acting direction is downward, the test piece is subjected to downward pressure effect, along with the continuous change of the load acting direction, the test piece bears the tension-compression effect and forms a corresponding hysteresis curve under the cooperative work of the compression-preventing destabilizing piece and the screw rod.
If the hysteresis performance of the sample is tested at high temperature, the test device and the test piece in the step 1 are placed in a high-temperature furnace, and heat preservation is carried out between a high-temperature furnace mouth and the test device by using a heat preservation and insulation material.
Principles of the utility model
The clamping force transmission piece clamps the metal sheet test piece through a plurality of bolt through holes and corresponding bolts, and then the circulating tensile pressure is uniformly transmitted to the metal sheet test piece, so that the aim of testing the circulating tensile pressure of the metal sheet test piece is fulfilled, and the basic mechanical property and hysteresis property of the metal sheet test piece are further obtained; in the tensile and compressive testing process of the sheet metal test piece, the screw rod can freely slide up and down in the corresponding screw rod through hole, the anti-compression instability piece penetrates through the screw rod, and under the joint constraint of the screw rod and the bolt on the anti-compression instability piece, only the vertical tiny sliding can occur, so that the thickness direction of the sheet metal test piece can be subjected to certain constraint force when being compressed, and the sheet metal test piece is further ensured not to be subjected to out-of-plane instability in the compression process.
Furthermore, unless specifically stated or indicated otherwise, the terms "first," "second," "third," and the like in the description merely used for distinguishing between various components, elements, steps, etc. in the description, and not for indicating a logical or sequential relationship between various components, elements, steps, etc.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a be applicable to sheet metal high temperature cycle and draw and press testing arrangement, its characterized in that, this device includes first end connecting plate (1), first tubular member (3), first transition plate (5), second end connecting plate (2), second tubular member (4) and second transition plate (6), wherein:
one end of the first tubular member (3) is fixedly connected to the end face of the first end connecting plate (1), the other end of the first tubular member is fixedly connected to one end face of the first transition plate (5), and the second end connecting plate (2), the second tubular member (4) and the second transition plate (6) are identical in structure and symmetrically arranged with the first end connecting plate (1), the first tubular member (3) and the first transition plate (5);
A first clamping force transmission piece (7) is fixedly connected to the other end face of the first transition plate (5), a third clamping force transmission piece (9) is arranged on one side of the first clamping force transmission piece (7), a second clamping force transmission piece (8) is fixedly connected to the end face, opposite to the first transition plate (5), of the second transition plate (6), and a fourth clamping force transmission piece (10) is arranged on one side of the second clamping force transmission piece (8);
A plurality of anti-compression instability pieces are respectively arranged between the first clamping force transmission piece (7) and the second clamping force transmission piece (8) and between the third clamping force transmission piece (9) and the fourth clamping force transmission piece (10), and a plurality of screw rods are slidably connected between the opposite clamping force transmission pieces and the anti-compression instability pieces in a penetrating way;
Test piece grooves matched with the corresponding test piece in shape are formed in the first clamping force transfer piece (7) to the fourth clamping force transfer piece (10).
2. The high-temperature cyclic tension-compression testing device for the metal plates according to claim 1, wherein a plurality of screw through holes are formed in the first clamping force transmission piece (7) to the fourth clamping force transmission piece (10) and the compression instability prevention piece therebetween, and the compression instability prevention piece is connected with the corresponding clamping force transmission piece in a mode that a screw slides in the screw through hole.
3. The high-temperature cyclic pulling and pressing testing device for the metal plate according to claim 2, wherein the test piece groove is provided with a plurality of bolt through holes, and the clamping force transmission piece is used for fixing the test piece in the test piece groove through the bolt through holes and corresponding bolts, so that the pre-clamping force can be conveniently applied to the test piece.
4. The device for testing the high-temperature cyclic pulling and pressing of the metal plate according to claim 1, wherein screw holes are formed in the first end connecting plate (1) and the second end connecting plate (2), and the first end connecting plate and the second end connecting plate are respectively connected with an upper workbench and a lower workbench of a corresponding testing machine through the screw holes and bolts.
5. The device for testing the high-temperature cyclic pulling and pressing of the metal plate according to claim 1, wherein the transition plate and the clamping force transmission piece are fixedly connected in a single-side split welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322358823.9U CN220961015U (en) | 2023-08-31 | 2023-08-31 | Be applicable to sheet metal high temperature cycle and draw and press testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322358823.9U CN220961015U (en) | 2023-08-31 | 2023-08-31 | Be applicable to sheet metal high temperature cycle and draw and press testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961015U true CN220961015U (en) | 2024-05-14 |
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ID=90976199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322358823.9U Active CN220961015U (en) | 2023-08-31 | 2023-08-31 | Be applicable to sheet metal high temperature cycle and draw and press testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220961015U (en) |
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2023
- 2023-08-31 CN CN202322358823.9U patent/CN220961015U/en active Active
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