Dynamic mechanical property testing machine

Abstract

The utility model discloses a dynamic mechanical property testing machine, and relates to the technical field of dynamic mechanical properties. The quick-mounting device comprises a main body, mounting seats are arranged below the cross rod and on the main body, mounting plates are arranged on the opposite sides of the mounting seats, quick-mounting assemblies which are symmetrically distributed are arranged between the mounting seats and the mounting plates, and linkage assemblies are arranged on the mounting seats. By inserting the inserting block into the inserting groove, aligning the limiting block with the limiting groove and driving the limiting block to be inserted into the limiting groove through the elastic force of the first spring, the limiting block is fixed to the inserting block, then the fixing mounting plate is fixed to the clamp, and therefore the situation that the clamp is tedious in mounting operation can be avoided, and the purpose of improving the mounting efficiency is achieved; the pressing rod moves to drive the moving block to move, the moving block drives the connecting rod to rotate, the connecting rod drives the two ejecting blocks to move reversely, the ejecting blocks drive the limiting blocks to move out of the limiting grooves, and therefore the limiting blocks can be synchronously operated, and the purpose of convenient operation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of dynamic mechanical properties technology, specifically a dynamic mechanical properties testing machine. Background Technology

[0002] Dynamic mechanical properties refer to the mechanical response characteristics of materials or structures under dynamic loads. They focus on the deformation, stress distribution, energy dissipation, and failure behavior of materials under non-constant, periodic, or transient forces.

[0003] When testing metallic materials, dynamic mechanical property testing machines generally require changing to matching fixtures. The disassembly and installation of fixtures are mostly fixed by multiple screws, but this operation is cumbersome, the speed of changing fixtures is slow, the operation efficiency is reduced, and it is not conducive to quickly changing fixtures. Utility Model Content

[0004] To address the problem of cumbersome operation and reduced efficiency of operating multiple screws, the purpose of this invention is to provide a dynamic mechanical property testing machine.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: a dynamic mechanical property testing machine, comprising a main body, on which symmetrically distributed supports are mounted, cylinders are disposed inside the supports, a crossbar is disposed between the moving ends of two cylinders, mounting seats are disposed below the crossbar and on the main body, a piezoelectric sensor is mounted between the crossbar and the mounting seat, a mounting plate is disposed on the opposite side of the mounting seat, symmetrically distributed quick-release components are disposed between the mounting seat and the mounting plate, and a linkage component is disposed on the mounting seat; the quick-release component includes a plug, and symmetrically distributed slots are formed on the lower surface of the mounting seat. The insert block is movably inserted into the slot. A first groove is formed on the opposite side of the insert block. A limiting block is slidably provided inside the first groove. A limiting groove is formed on the inner wall of the slot. One end of the limiting block is movably inserted into the limiting groove. A guide rod is fixedly provided inside the first groove. One end of the guide rod movably passes through the limiting block. The guide rod can keep the limiting block moving stably. A first spring is movably sleeved on the outside of the guide rod. The two ends of the first spring are fixedly connected to the inner wall of the first groove and one side of the limiting block, respectively. The spring force of the first spring can drive the limiting block to reset. A clamp is fixedly installed on the opposite side of the mounting plate.

[0006] Preferably, the linkage component includes a fixed rod, the mounting base has a cavity, the fixed rod is fixedly installed in the cavity, a movable block is movably sleeved on the outer side of the fixed rod, the inner wall of the cavity has symmetrically distributed through grooves, one end of the through grooves communicates with a limiting groove, a top block is slidably installed inside the through groove, one end of the top block is in contact with one end of the limiting block, a connecting rod is provided between the top block and the movable block, the outer side of the movable block has symmetrically distributed second grooves, a rotating shaft is rotatably installed inside the second groove, one end of the connecting rod is fixedly sleeved on the rotating shaft, the end of the connecting rod away from the rotating shaft is rotatably installed on the opposite side of the top block, the rotating shaft allows the connecting rod to rotate easily, a second spring is movably sleeved on the outer side of the fixed rod, the two ends of the second spring are fixedly connected to the inner wall of the cavity and one side of the movable block respectively, the spring force of the second spring can drive the movable block to reset, a pressure rod movably passes through the outer side of the mounting base, one end of the pressure rod is movably sleeved on the fixed rod.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. By inserting the insert into the slot, the limiting block is aligned with the limiting groove. The first spring force drives the limiting block to insert into the limiting groove, so that the limiting block fixes the insert, and then the mounting plate fixes the fixture. This can avoid the cumbersome fixture installation operation, thereby improving the installation efficiency.

[0009] 2. The moving block is driven to move by the pressure rod, the moving block drives the connecting rod to rotate, the connecting rod drives the two top blocks to move in opposite directions, and the top blocks drive the limit block to move out of the limit groove. This allows for synchronous operation of the limit blocks, thereby achieving the purpose of convenient operation. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a cross-sectional schematic diagram of the mounting base and its connection structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the fixing rod and its connection structure of the present invention.

[0014] Figure 4This is a cross-sectional schematic diagram of the insert block and its connection structure of this utility model.

[0015] In the diagram: 1. Main body; 2. Quick-release assembly; 21. Insert block; 22. Slot; 23. First groove; 24. Limiting block; 25. Limiting groove; 26. Guide rod; 27. First spring; 3. Bracket; 4. Crossbar; 5. Piezoelectric sensor; 6. Mounting base; 7. Clamp; 8. Mounting plate; 9. Linkage assembly; 91. Fixed rod; 92. Cavity; 93. Moving block; 94. Connecting rod; 95. Through groove; 96. Top block; 97. Second spring; 98. Second groove; 99. Rotating shaft; 910. Pressure rod; 10. Cylinder. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-4As shown, this utility model provides a dynamic mechanical property testing machine, including a main body 1. Symmetrically distributed supports 3 are mounted on the main body 1. Cylinders 10 are installed inside the supports 3. A crossbar 4 is positioned between the moving ends of two cylinders 10. Mounting seats 6 are provided below the crossbar 4 and on the main body 1. A piezoelectric sensor 5 is installed between the crossbar 4 and the mounting seats 6. A mounting plate 8 is provided on the opposite side of the mounting seats 6. Symmetrically distributed quick-release components 2 are provided between the mounting seats 6 and the mounting plate 8. A linkage component 9 is provided on the mounting seats 6. The quick-release component 2 includes an insert block 21. Symmetrically distributed slots 22 are formed on the lower surface of the mounting seats 6. The insert block 21 is movably inserted into the slot 22. A first groove 23 is formed on the opposite side of the insert block 21. A limiting block 24 is slidably provided inside the first groove 23. A limiting groove 25 is formed on the inner wall of the slot 22. One end of the limiting block 24 is movable. Inserted into the limiting groove 25, the insert 21 is inserted into the slot 22. The inclined surface of the limiting block 24 is pressed by the inner wall of the slot 22, causing the limiting block 24 to move into the first groove 23. The limiting block 24 is inserted into the limiting groove 25, fixing the limiting block 24 to the insert 21, thereby fixing the mounting plate 8 to the clamp 7. This facilitates the installation of the clamp 7. A guide rod 26 is fixedly provided inside the first groove 23. One end of the guide rod 26 moves through the limiting block 24, which keeps the limiting block 24 moving stably. A first spring 27 is movably sleeved on the outside of the guide rod 26. The two ends of the first spring 27 are fixedly connected to the inner wall of the first groove 23 and one side of the limiting block 24, respectively. The elastic force of the first spring 27 can drive the limiting block 24 to reset. The clamp 7 is fixedly installed on the opposite side of the mounting plate 8, which facilitates the fixation of the test sample.

[0018] The linkage component 9 includes a fixed rod 91. A cavity 92 is formed inside the mounting base 6. The fixed rod 91 is fixedly installed inside the cavity 92. A movable block 93 is movably sleeved on the outer side of the fixed rod 91. Symmetrically distributed through grooves 95 are formed on the inner wall of the cavity 92. One end of each through groove 95 communicates with a limiting groove 25. A top block 96 is slidably installed inside the through groove 95. One end of the top block 96 is in contact with one end of the limiting block 24. A connecting rod 94 is provided between the top block 96 and the movable block 93. The movable block 93 moves on the fixed rod 91, causing the connecting rod 94 to rotate along the pivot 99. The connecting rod 94 causes the two top blocks 96 to move in opposite directions within the through groove 95. The top blocks 96 cause the limiting block 24 to move out of the limiting groove 25, thus allowing the limiting block 24 to move out of the limiting groove 25. 4. Synchronous operation: The outer side of the movable block 93 is provided with symmetrically distributed second grooves 98. The inner side of the second groove 98 is rotatably mounted with a rotating shaft 99. One end of the connecting rod 94 is fixedly sleeved on the rotating shaft 99, and the other end of the connecting rod 94 away from the rotating shaft 99 is rotatably mounted on the opposite side of the top block 96. The rotating shaft 99 allows the connecting rod 94 to rotate easily. The outer side of the fixed rod 91 is movably sleeved with a second spring 97. The two ends of the second spring 97 are fixedly connected to the inner wall of the cavity 92 and one side of the movable block 93, respectively. The elastic force of the second spring 97 can drive the movable block 93 to reset. The outer side of the mounting base 6 is movably penetrated by a pressure rod 910. One end of the pressure rod 910 is movably sleeved on the fixed rod 91. The pressure rod 910 allows the movable block 93 to move easily.

[0019] Working principle: When it is necessary to disassemble the clamp 7, first press the pressure rod 910. The pressure rod 910 moves and drives the moving block 93 to move on the fixed rod 91. At the same time, the moving block 93 compresses the second spring 97, so that the second spring 97 generates elastic force. The moving block 93 drives the connecting rod 94 to rotate along the rotating shaft 99. The connecting rod 94 drives the two top blocks 96 to move in opposite directions in the through groove 95. The top blocks 96 drive the limiting block 24 to move out of the limiting groove 25. In this way, the limiting block 24 can be operated synchronously. Then, the limiting block 24 moves into the first groove 23 and is kept stable by the guide rod 26. At the same time, the limiting block 24 compresses the first spring 27, so that the first spring 27 generates elastic force. Then, the mounting plate 8 moves away from the mounting base 6. The mounting plate 8 drives the insert block 21 to move out of the slot 22. In this way, the clamp 7 can be quickly disassembled.

[0020] When installing the clamp 7, first insert the insert 21 into the slot 22. The inclined surface of the limiting block 24 is pressed by the inner wall of the slot 22, causing the limiting block 24 to move into the first groove 23. At the same time, the limiting block 24 compresses the first spring 27, causing the first spring 27 to generate elastic force. The limiting block 24 is aligned with the limiting groove 25. The elastic force of the first spring 27 drives the limiting block 24 to be inserted into the limiting groove 25, so that the limiting block 24 fixes the insert 21, thereby fixing the mounting plate 8 to fix the clamp 7. This makes it convenient to install the clamp 7.

[0021] When tensile testing is required, the test sample is first fixed to the clamp 7. Then, the moving end of the cylinder 10 drives the crossbar 4 to move upward. The crossbar 4 drives one of the clamps 7 to move upward or downward to perform a dynamic test on the test sample to perform tensile and compressive changes, and its load changes with time. At the same time, the piezoelectric sensor 5 collects the tensile data and transmits it to the background computer for processing, thus enabling dynamic testing.

[0022] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A dynamic mechanical properties testing machine comprising a main body (1), characterised in that: The body (1) is provided with symmetrically distributed supports (3), the inside of the support (3) is provided with air cylinders (10), the moving ends of the two air cylinders (10) are provided with a cross bar (4), the lower side of the cross bar (4) and the body (1) are provided with mounting seats (6), the opposite side of the mounting seat (6) is provided with a mounting plate (8), the mounting seat (6) and the mounting plate (8) are provided with symmetrically distributed quick-mounting assemblies (2), the mounting seat (6) is provided with a linkage assembly (9); The quick-mounting assembly (2) comprises an insertion block (21), the lower surface of the mounting seat (6) is provided with symmetrically distributed insertion grooves (22), the insertion block (21) is movably inserted into the insertion grooves (22), the opposite side of the insertion block (21) is provided with a first recess (23), the inside of the first recess (23) is slidably provided with a limiting block (24), the inner wall of the insertion groove (22) is provided with a limiting groove (25), one end of the limiting block (24) is movably inserted into the limiting groove (25).

2. A dynamic mechanical property testing machine as claimed in claim 1, wherein, The linkage assembly (9) comprises a fixed rod (91), the inside of the mounting seat (6) is provided with a cavity (92), the fixed rod (91) is fixedly installed in the cavity (92), the outer side of the fixed rod (91) movably sheathes a moving block (93), the inner wall of the cavity (92) is provided with symmetrically distributed through grooves (95), one end of the through groove (95) is communicated with the limiting groove (25), the inside of the through groove (95) slidably sheathes a top block (96), one end of the top block (96) is attached to one end of the limiting block (24), the top block (96) and the moving block (93) are provided with a connecting rod (94).

3. A dynamic mechanical property testing machine as claimed in claim 1, wherein, The inside of the first recess (23) is fixedly provided with a guide rod (26), one end of the guide rod (26) movably penetrates the limiting block (24).

4. A dynamic mechanical property testing machine as claimed in claim 2, wherein, The outer side of the moving block (93) is provided with symmetrically distributed second recesses (98), the inside of the second recess (98) rotatably sheathes a rotating shaft (99), one end of the connecting rod (94) is fixedly sheathed on the rotating shaft (99), the end of the connecting rod (94) away from the rotating shaft (99) is rotatably installed on the opposite side of the top block (96).

5. A dynamic mechanical property testing machine as claimed in claim 3, wherein, The outer side of the guide rod (26) movably sheathes a first spring (27), the two ends of the first spring (27) are fixedly connected with the inner wall of the first recess (23) and one side of the limiting block (24) respectively.

6. A dynamic mechanical property testing machine as claimed in claim 2, wherein, The outer side of the fixed rod (91) movably sheathes a second spring (97), the two ends of the second spring (97) are fixedly connected with the inner wall of the cavity (92) and one side of the moving block (93) respectively.

7. A dynamic mechanical property testing machine as claimed in claim 2, wherein, The outer side of the mounting seat (6) movably penetrates a pressing rod (910), one end of the pressing rod (910) movably sheathes the fixed rod (91).

8. A dynamic mechanical property testing machine as claimed in claim 1, wherein, The opposite side of the mounting plate (8) is fixedly installed with a clamp (7).

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