CN216669494U - Block-shaped sample clamping device for metal fatigue test - Google Patents
Block-shaped sample clamping device for metal fatigue test Download PDFInfo
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- CN216669494U CN216669494U CN202122527718.4U CN202122527718U CN216669494U CN 216669494 U CN216669494 U CN 216669494U CN 202122527718 U CN202122527718 U CN 202122527718U CN 216669494 U CN216669494 U CN 216669494U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A clamping device for a massive sample of a metal fatigue test belongs to the technical field of metal fatigue testing machine equipment and is used for clamping the massive sample during a pressure-pressure fatigue test. The technical scheme is as follows: the one end of two anchor clamps poles is connected with fatigue testing machine's last anchor clamps and lower anchor clamps clamp-in respectively, the bottom surface center of two anchor clamps platforms and the other end welded connection of two anchor clamps poles, the upper surface parallel of two anchor clamps platforms is relative, two sample platforms are connected with the upper surface of two anchor clamps platforms respectively, the sample fixed plate is the lath, the surface of two sample platforms has four sample fixed plates to enclose into square frame respectively, cubic sample is placed in the frame that the sample fixed plate of two sample platform relative surfaces encloses, two sample platforms press from both sides the tight fixedly with cubic sample. The device has a simple structure, is convenient to use, effectively solves the problem of testing the pressure-pressure fatigue performance of the block-shaped test sample, ensures the accuracy of the fatigue test data of the test sample, and can complete the fatigue test of the block-shaped test samples with various sizes.
Description
Technical Field
The utility model relates to a block-shaped sample clamping device for performing a compression-compression fatigue test on a metal fatigue testing machine, belonging to the technical field of metal fatigue testing machine equipment.
Background
Metal fatigue testing is an important means of detecting metal properties. After the metal material and the structure are subjected to repeated changing load, local permanent accumulated damage is gradually generated at one or more positions, cracks or complete fracture is suddenly generated after certain cycle times, and the damage of the material and the structure under the repeated changing load is mostly caused by fatigue. Fatigue failure is often a failure that occurs at stress values that, while not exceeding the strength limit of the material, are even below the elastic limit. It is important to test fatigue performance that more than 80% of failures of materials or structures are statistically due to fatigue, and fatigue failure often results in significant economic loss or loss of life. In the fatigue test, the material is usually processed into a standard sample and then the performance test is carried out, however, the block sample cannot be directly and effectively clamped when the pressure-pressure fatigue test is carried out, and the difficulty is brought to the pressure-pressure fatigue performance test of the material. Therefore, a clamping device for detecting the pressure-pressure fatigue performance of the massive sample is very necessary to design.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a clamping device for block samples in metal fatigue tests, which can effectively clamp the block samples with different sizes, complete the test of metal compression-compression fatigue performance and ensure the accuracy of test results.
The technical scheme for solving the technical problems is as follows:
a massive sample clamping device for a metal fatigue test comprises clamp rods, clamp platforms, sample tables and sample fixing plates, wherein the clamp rods are cylindrical rods, one ends of the two clamp rods are respectively connected with an upper clamp and a lower clamp of the fatigue test machine in a clamping manner, the clamp platforms are square platforms, the centers of the bottom surfaces of the two clamp platforms are connected with the other ends of the two clamp rods in a welding manner, the upper surfaces of the two clamp platforms are parallel and opposite, the sample tables are square steel plates, the two sample tables are respectively connected with the upper surfaces of the two clamp platforms, the sample fixing plates are steel strips, the opposite surfaces of the two sample tables are respectively provided with four sample fixing plates which are enclosed into square frames, the sample fixing plates are connected with the surfaces of the sample tables, the inner peripheral shape of the square frames of the sample fixing plates is matched with the outer peripheral shape of the massive samples, the massive samples are placed in the frames enclosed by the sample fixing plates on the opposite surfaces of the two sample tables, the block-shaped test sample is clamped and fixed by the opposite surfaces of the two test sample tables.
According to the block sample clamping device for the metal fatigue test, 2-3 parallel connecting sliding grooves are formed in the opposite surfaces of the two clamp platforms respectively, the cross sections of the connecting sliding grooves are T-shaped, the lower surfaces of the two sample platforms are provided with the convex connecting sliding blocks respectively, the positions and the cross section shapes of the connecting sliding blocks correspond to the connecting sliding grooves respectively, the connecting sliding blocks of the two sample platforms are embedded in the connecting sliding grooves of the two clamp platforms respectively, the connecting sliding blocks are in sliding fit with the connecting sliding grooves, screw holes are formed in the two sides of the upper surfaces of the two clamp platforms respectively, corresponding connecting holes are formed in the two sides of the two sample platforms respectively, and the fixing bolt penetrates through the connecting holes and the screw holes to connect the two sample platforms with the upper surfaces of the two clamp platforms respectively.
According to the block sample clamping device for the metal fatigue test, the sample tables are of multiple specifications, the sample fixing plates on the sample tables of different specifications are different in length, the sample fixing plates of different lengths enclose square frames of different sizes, the different square frames correspond to different block samples respectively, and the two clamp platforms are changed to be provided with the sample tables of different specifications to be matched with the different block samples.
The utility model has the beneficial effects that:
the fixture platform and the sample table are connected with the connecting slide block through the connecting slide groove and then fixed by the fixing bolt, so that different sample tables can be replaced quickly, and different sample tables are respectively provided with sample fixing plates with different specifications and can clamp block samples with different sizes.
The device has the advantages of simple structure, convenient use and perfect matching of the whole set of device, effectively solves the problem of testing the pressure-pressure fatigue performance of the massive samples, ensures the accuracy of the fatigue test data of the samples, can complete the fatigue test of the massive samples with various sizes by selecting different sample fixing plates, adopts the die steel Cr12MoV, has high hardness and strength and good wear resistance, and can prevent the device from generating elastic deformation during the fatigue test.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of a different sample station;
the figures are labeled as follows: the device comprises a clamp rod 1, a clamp platform 2, a sample table 3, a sample fixing plate 4, a connecting chute 5, a connecting slide block 6, a fixing bolt 7 and a block-shaped sample 8.
Detailed Description
The utility model is composed of a clamp rod 1, a clamp platform 2, a sample table 3, a sample fixing plate 4, a connecting chute 5, a connecting slide block 6 and a fixing bolt 7.
Fig. 1 shows that the fixture rods 1 are cylindrical rods, one ends of the two fixture rods 1 are respectively connected with an upper fixture and a lower fixture of the fatigue testing machine in a clamping manner, and the other ends of the two fixture rods 1 are connected with the centers of the bottom surfaces of the two fixture platforms 2 in a welding manner.
Fig. 1 shows that the fixture platform 2 is a square platform, the upper surfaces of the two fixture platforms 2 are parallel and opposite, 2-3 parallel connecting sliding grooves 5 are respectively arranged on the opposite surfaces of the two fixture platforms 2, the cross sections of the connecting sliding grooves 5 are T-shaped, and the connecting sliding grooves 5 are used for being connected with the sample platform 3.
Fig. 1 shows that the sample table 3 is a square steel plate, the lower surfaces of the two sample tables 3 are respectively provided with a convex connecting slide block 6, the positions and the cross-sectional shapes of the connecting slide blocks 6 respectively correspond to the connecting slide grooves 5 of the two fixture platforms 2, the connecting slide blocks 6 of the two sample tables 3 are respectively embedded in the connecting slide grooves 5 of the two fixture platforms 2, and the connecting slide blocks 6 are in sliding fit with the connecting slide grooves 5.
Fig. 1 shows that screw holes are respectively formed in two sides of the upper surfaces of two fixture platforms 2, corresponding connecting holes are respectively formed in two sides of two sample platforms 3, and fixing bolts 7 penetrate through the connecting holes and the screw holes to connect the two sample platforms 3 with the upper surfaces of the two fixture platforms 2 respectively. The fixture platform 2 and the sample platform 3 are connected with the connecting slide block 6 through the connecting slide groove 5 and then fixed by the fixing bolt 7, so that different sample platforms 3 can be replaced quickly.
Fig. 1 shows that the sample fixing plate 4 is a steel plate strip, four sample fixing plates 4 are respectively arranged on the opposite surfaces of two sample tables 3 to form a square frame, the sample fixing plates 4 are connected with the surfaces of the sample tables 3, the inner peripheral shape of the square frame of the sample fixing plates 4 is matched with the outer peripheral shape of the block-shaped sample 8, the block-shaped sample 8 is placed in the frame formed by the sample fixing plates 4 on the opposite surfaces of the two sample tables 3, and the block-shaped sample 8 is clamped and fixed by the opposite surfaces of the two sample tables 3.
Fig. 2 shows that the sample table 3 has multiple specifications, the sample fixing plates 4 on the sample tables 3 with different specifications have different lengths, the sample fixing plates 4 with different lengths enclose square frames with different sizes, the different square frames correspond to different block-shaped samples 8, and the two clamp platforms 2 are replaced with the sample tables 3 with different specifications to match with the different block-shaped samples 8.
One embodiment of the utility model is as follows:
the length of the clamp rod 1 is 50mm, and the diameter of the clamp rod is 15 mm;
the clamp platform 2 is a square with the length of 100mm and the width of 100mm, the thickness of the square is 8mm, and the lower part of the connecting chute 5 is 10mm long and 4mm high;
the sample table 3 is a square with the length of 100mm and the width of 100mm, and the thickness of the sample table is 4 mm;
the sample fixing plate 4 is a square with the side length of 20mm, 40mm and 60mm, and the height of 4 mm;
the diameter of the fixing bolt 7 is 5 mm.
Claims (3)
1. The utility model provides a cubic sample clamping device of metal fatigue test which characterized in that: the device comprises clamp rods (1), clamp platforms (2), sample tables (3) and sample fixing plates (4), wherein the clamp rods (1) are cylindrical rods, one ends of the two clamp rods (1) are respectively connected with an upper clamp and a lower clamp of a fatigue testing machine in a clamping manner, the clamp platforms (2) are square platforms, the centers of the bottom surfaces of the two clamp platforms (2) are connected with the other ends of the two clamp rods (1) in a welding manner, the upper surfaces of the two clamp platforms (2) are parallel and opposite, the sample tables (3) are square steel plates, the two sample tables (3) are respectively connected with the upper surfaces of the two clamp platforms (2), the sample fixing plates (4) are steel plate strips, the opposite surfaces of the two sample tables (3) are respectively provided with four sample fixing plates (4) which are encircled to form square frames, the sample fixing plates (4) are connected with the surfaces of the sample tables (3), the inner peripheral shapes of the square frames of the sample fixing plates (4) are matched with the peripheral shapes of block samples (8), the block-shaped samples (8) are placed in a frame surrounded by the sample fixing plates (4) on the opposite surfaces of the two sample tables (3), and the block-shaped samples (8) are clamped and fixed by the opposite surfaces of the two sample tables (3).
2. The block specimen holding device for the metal fatigue test according to claim 1, characterized in that: the two-stage sample testing fixture is characterized in that 2-3 parallel connecting sliding grooves (5) are respectively formed in the opposite surfaces of the two fixture platforms (2), the cross sections of the connecting sliding grooves (5) are T-shaped, the lower surfaces of the two sample platforms (3) are respectively provided with a convex connecting sliding block (6), the positions and the cross section shapes of the connecting sliding blocks (6) are respectively corresponding to the connecting sliding grooves (5), the connecting sliding blocks (6) of the two sample platforms (3) are respectively embedded in the connecting sliding grooves (5) of the two fixture platforms (2), the connecting sliding blocks (6) are in sliding fit with the connecting sliding grooves (5), screw holes are respectively formed in the two sides of the upper surface of the two fixture platforms (2), corresponding connecting holes are respectively formed in the two sides of the two sample platforms (3), and fixing bolts (7) penetrate through the connecting holes and the screw holes to respectively connect the two sample platforms (3) with the upper surfaces of the two fixture platforms (2).
3. The block specimen holding device for the metal fatigue test according to claim 1, characterized in that: the test sample platforms (3) are of various specifications, the test sample fixing plates (4) on the test sample platforms (3) of different specifications are different in length, the test sample fixing plates (4) of different lengths enclose square frames of different sizes, the different square frames correspond to different block-shaped test samples (8) respectively, and the test sample platforms (3) of different specifications are replaced by the two clamp platforms (2) and are matched with the different block-shaped test samples (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122527718.4U CN216669494U (en) | 2021-10-20 | 2021-10-20 | Block-shaped sample clamping device for metal fatigue test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122527718.4U CN216669494U (en) | 2021-10-20 | 2021-10-20 | Block-shaped sample clamping device for metal fatigue test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216669494U true CN216669494U (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122527718.4U Active CN216669494U (en) | 2021-10-20 | 2021-10-20 | Block-shaped sample clamping device for metal fatigue test |
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| Country | Link |
|---|---|
| CN (1) | CN216669494U (en) |
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2021
- 2021-10-20 CN CN202122527718.4U patent/CN216669494U/en active Active
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