Tension testing machine

Abstract

The utility model discloses a tensile testing machine. The tensile testing machine comprises a workbench, a lifting mechanism and a clamping mechanism, the lifting mechanism is installed on the workbench and comprises a fixing frame, a pair of threaded rods are rotationally connected to the fixing frame, lifting blocks are connected to the threaded rods in a threaded mode, and a lifting plate is fixed between the pair of lifting blocks; the clamping mechanism is installed on the workbench and the lifting plate and comprises a pair of supporting frames, a pair of moving blocks are slidably connected to the supporting frames, pushing blocks are fixed to the moving blocks, a pair of fixing blocks are slidably connected to the pushing blocks, clamping blocks are fixed to the pair of fixing blocks, and positioning blocks are further slidably connected to the multiple pushing blocks. Clamping blocks are fixed to the positioning blocks, and clamping grooves are formed in the multiple fixing blocks. Compared with the prior art, the tension tester has the advantages that the clamp can be quickly replaced, the time required for replacing the clamp can be effectively reduced, the workload of testers is reduced, the time is saved, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tensile testing machines, and in particular relates to a tensile testing machine. Background Art

[0002] A tensile testing machine is an instrument used to measure the mechanical properties of materials and is widely used in the quality inspection and R&D of various products. It can measure parameters such as tensile strength, compression strength, and flexural strength of materials such as metals, rubber, plastics, and textiles, depending on specific requirements. Through precise data analysis, it provides a scientific basis for product quality control and the development of new materials.

[0003] In the prior art, a tensile testing machine clamps the test material through a fixture to facilitate testing the mechanical properties of the test material. However, different test materials have different shapes and require different fixtures to clamp and fix them. This requires the fixture to be removed and replaced when testing different test materials, which increases the workload of testers, consumes a lot of time, and reduces test efficiency.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a tensile testing machine.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a tensile testing machine, which can be used to solve the problem that the clamps on the tensile testing machine are difficult to replace.

[0007] In order to achieve the above-mentioned object, a specific embodiment of the present utility model provides a tensile testing machine, comprising: a workbench, a lifting mechanism and a clamping mechanism;

[0008] The lifting mechanism is installed on the workbench, and the lifting mechanism includes a fixed frame, a pair of threaded rods are rotatably connected to the fixed frame, and lifting blocks are threadedly connected to the threaded rods, and a lifting plate is fixed between the pair of lifting blocks;

[0009] The clamping mechanism is installed on the workbench and the lifting plate. The clamping mechanism includes a pair of support frames, a pair of moving blocks are slidably connected to the support frames, a pushing block is fixed on the moving block, a pair of fixed blocks are slidably connected to the pushing block, a clamping block is fixed on a pair of the fixed blocks, and multiple pushing blocks are also slidably connected to positioning blocks, a card block is fixed on the positioning block, and multiple fixed blocks are provided with card slots.

[0010] In one or more embodiments of the present invention, an inner cavity is excavated inside the workbench, and the inner cavity is used to place the electric push cylinder and a pair of motors. A pair of motors are installed on the side walls of the inner cavity, and the motor is connected to one end of the threaded rod. The motor is used to control the rotation of the threaded rod.

[0011] In one or more embodiments of the present invention, the workbench and the lifting plate are both equipped with electric push cylinders, which can control the telescopic rod to extend and retract. The electric push cylinder is equipped with a telescopic rod, which can drive the control plate to move.

[0012] In one or more embodiments of the present invention, a control board is fixed to one side of the pair of telescopic rods away from the electric push cylinder, and the control board can move along with the telescopic rods, thereby pushing the moving block to move.

[0013] In one or more embodiments of the present invention, control grooves are excavated on the plurality of movable blocks, the control grooves are used to place the control blocks, the side walls of the plurality of control grooves are slidably connected with control blocks, the control blocks are fixedly connected to the control board, and the control blocks can be supported on the side walls of the control grooves, so that the control blocks can drive the movable blocks to move while following the movement of the control board.

[0014] In one or more embodiments of the present invention, a plurality of the pushing blocks are slidably connected to a pressing plate, and the pressing plate is fixedly connected to the positioning block, and squeezing the pressing plate can drive the positioning block to move.

[0015] In one or more embodiments of the present invention, a squeeze block is fixed at one end of each of the pressing plates, and the squeeze block is used to support the pressing plate. A spring is installed between the squeezing block and the moving block, and the spring can push the squeezing block to move, thereby pushing the pressing plate to move.

[0016] In one or more embodiments of the present invention, a plurality of the clamping blocks are fixed with an anti-slip layer, which can increase the friction between the clamping blocks and the test material, thereby enabling the clamping blocks to better clamp the test material.

[0017] In one or more embodiments of the present invention, multiple limiting grooves are opened on the multiple clamping blocks, and the limiting grooves are used to place the limiting blocks. The limiting blocks are slidably connected to the side walls of the limiting grooves, and the limiting blocks are fixedly connected to the moving blocks. The limiting blocks can be supported on the side walls of the limiting grooves, thereby supporting the clamping blocks.

[0018] In one or more embodiments of the present invention, a pair of sliding grooves are carved on a pair of the support frames, and the inside of the sliding grooves is used to place sliders. The side walls of the sliding grooves are slidably connected with sliders, and the sliders are fixedly connected to the moving block. The sliders can be supported on the side walls of the sliding grooves, thereby supporting the moving block, so that the pressing plate is not easy to fall off.

[0019] Compared with the prior art, the tensile testing machine of the present invention can quickly replace the fixture, which can effectively reduce the time required for fixture replacement, reduce the workload of testers, save time, and improve test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0021] Figure 1 This is a cross-sectional view of a tensile testing machine in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 The structural diagram shown at A in the figure;

[0023] Figure 3 for Figure 1 The structural diagram shown at B in FIG.

[0024] Figure 4 for Figure 1 The structural diagram shown at C in the middle;

[0025] Figure 5 This is a three-dimensional diagram of a tensile testing machine in one embodiment of the present invention.

[0026] Description of main reference numerals:

[0027] 1-workbench, 2-lifting mechanism, 201-fixed frame, 202-threaded rod, 203-lifting block, 204-lifting plate, 205-inner cavity, 206-motor, 3-clamping mechanism, 301-support frame, 302-moving block, 303-pushing block, 304-fixed block, 305-clamping block, 306-positioning block, 307-electric push cylinder, 308-telescopic rod, 309-control plate, 310-control slot, 311-control block, 312-pressing plate, 313-extrusion block, 314-spring, 315-anti-slip layer, 316-limiting block, 317-block, 318-slot, 319-slide groove. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0029] like Figures 1 to 5 As shown, a tensile testing machine in one embodiment of the present invention includes: a workbench 1, a lifting mechanism 2 and a clamping mechanism 3.

[0030] like Figure 5 As shown, the workbench 1 is used to support a fixing frame 201, a support frame 301 and a pair of threaded rods 202. The lifting mechanism 2 is installed on the workbench 1, and the lifting mechanism 2 includes a fixing frame 201, and the fixing frame 201 is used to support the threaded rods 202.

[0031] like Figures 1 to 2 As shown, a pair of threaded rods 202 are rotatably connected to the fixed frame 201. The threaded rods 202 rotate to drive the lifting blocks 203 to move upward and downward. The lifting blocks 203 are threadedly connected to the threaded rods 202. The lifting blocks 203 support the lifting plate 204 and drive the lifting plate 204 upward and downward. The lifting plate 204 is fixed between the pair of lifting blocks 203. The lifting plate 204 supports the support frame 301 and drives the support frame 301 upward and downward.

[0032] like Figure 1 As shown, the workbench 1 has an inner cavity 205, which is used to place the electric push cylinder 307 and a pair of motors 206. A pair of motors 206 are installed on the side walls of the inner cavity 205, and the motors 206 are connected to one end of the threaded rod 202 to control the rotation of the threaded rod 202.

[0033] like Figures 1 to 3 As shown, the clamping mechanism 3 is mounted on the workbench 1 and the lifting plate 204. The clamping mechanism 3 includes a pair of support frames 301, which are used to support the moving block 302. The support frames 301 are slidably connected to a pair of moving blocks 302, which can support the pushing block 303 and can drive the pushing block 303 to move.

[0034] like Figure 4As shown, a push block 303 is fixed to the moving block 302. The push block 303 supports the fixed block 304 and can drive the fixed block 304 to move. A pair of fixed blocks 304 are slidably connected to the push block 303. The fixed blocks 304 are used to support the clamping block 305, so that the clamping block 305 can be fixed to the push block 303. The clamping block 305 is fixed to the pair of fixed blocks 304. The clamping block 305 can drive the anti-slip layer 315 to clamp the test material.

[0035] like Figure 4 As shown, each of the multiple push blocks 303 is slidably connected to a positioning block 306. The positioning block 306 is used to support a clamping block 317, thereby driving the clamping block 317 to move. The positioning block 306 is fixed with a clamping block 317, which can be supported on the sidewall of a clamping slot 318, thereby securing the fixed block 304. Each of the multiple fixed blocks 304 has a clamping slot 318, within which the clamping block 317 is placed.

[0036] like Figures 1 to 3 As shown, both the workbench 1 and the lifting platform 204 are equipped with electric cylinders 307, which can control the extension and retraction of telescopic rods 308. The electric cylinders 307 are equipped with telescopic rods 308, which can drive the movement of a control panel 309. A control panel 309 is fixed to the side of the telescopic rods 308 away from the electric cylinders 307. The control panels 309 can move with the telescopic rods 308, thereby driving the movement of the moving block 302.

[0037] like Figure 3 As shown, each of the multiple moving blocks 302 has a control groove 310, which is used to accommodate a control block 311. The control blocks 311 are slidably connected to the side walls of the multiple control grooves 310. The control blocks 311 are fixedly connected to the control board 309 and can be supported on the side walls of the control grooves 310. This allows the control blocks 311 to move with the control board 309 and simultaneously drive the moving blocks 302 to move.

[0038] like Figure 4 As shown, a plurality of push blocks 303 are slidably connected to a pressing plate 312, which is fixedly connected to the positioning block 306. Pressing the pressing plate 312 can drive the positioning block 306 to move. A pressing block 313 is fixed to one end of each of the pressing plates 312, which is used to support the pressing plate 312. A spring 314 is installed between the pressing block 313 and the moving block 302. The spring 314 can push the pressing block 313 to move, thereby pushing the pressing plate 312 to move.

[0039] like Figure 4As shown, a plurality of clamping blocks 305 are each fixed with an anti-slip layer 315 , which can increase the friction between the clamping blocks 305 and the test material, thereby enabling the clamping blocks 305 to better clamp the test material.

[0040] like Figure 4 As shown, multiple clamping blocks 305 are each provided with a plurality of limiting grooves, each containing a limiting block 316. The limiting blocks 316 are slidably connected to the sidewalls of the limiting grooves. The limiting blocks 316 are fixedly connected to the moving block 302. The limiting blocks 316 can be supported on the sidewalls of the limiting grooves, thereby supporting the clamping blocks 305.

[0041] like Figures 1 to 3 As shown, a pair of slide grooves 319 are formed on each of the pair of support frames 301. Sliders are slidably connected to the side walls of the slide grooves 319. The slides are fixedly connected to the moving block 302. The slides can be supported on the side walls of the slide grooves 319, thereby supporting the moving block 302 and preventing the pressing plate 312 from falling.

[0042] When in use, according to the shape of the test material, a suitable clamping block 305 and anti-slip layer 315 are selected, and the pressing plate 312 is squeezed. The pressing plate 312 can drive the pair of positioning blocks 306 to move, thereby driving the clamping block 317 to move. During the movement, the pressing plate 312 can also drive the squeezing block 313 to squeeze the spring 314. The pair of fixing blocks 304 on the clamping block 305 are installed on the pushing block 303. The pressing plate 312 is released. The spring 314 can push the squeezing block 313 to move, thereby pushing the pressing plate 312, the pair of positioning blocks 306 and the clamping block 317 to move, so that the clamping block 317 can be supported on the side wall of the slot 318, thereby fixing the fixing block 304 and the clamping block 305.

[0043] The pair of motors 206 are started. The motors 206 can control the threaded rod 202 to rotate. During the rotation of the threaded rod 202, the lifting block 203 can be driven to move up and down, thereby driving the lifting plate 204 to move. The lifting plate 204 can drive the support frame 301, the pair of moving blocks 302, the pushing block 303 and the clamping block 305 to move up and down, so that the pair of clamping blocks 305 on the lifting plate 204 can clamp one end of the test material.

[0044] Start the electric push cylinder 307, which can control the telescopic rod 308 to extend and retract, thereby driving the control panel 309 to move, and the control panel 309 can drive the control block 311 to move, and the control block 311 is supported on the side wall of the control slot 310, so that the control block 311 can drive the moving block 302 to move during the movement, so that the moving block 302 drives the pushing block 303 and the clamping block 305 to clamp the test material, and start the pair of motors 206 again, so that the lifting plate 204 drives the support frame 301, the pair of moving blocks 302, the pushing block 303 and the clamping block 305 to move upward, so that the mechanical properties of the test material can be tested.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A tensile testing machine, characterized in that: include: Workbench; A lifting mechanism is mounted on the workbench, the lifting mechanism comprising a fixed frame, a pair of threaded rods rotatably connected to the fixed frame, lifting blocks are threadedly connected to the threaded rods, and a lifting plate is fixed between the pair of lifting blocks; The clamping mechanism is installed on the workbench and the lifting plate. The clamping mechanism includes a pair of support frames, a pair of moving blocks are slidably connected to the support frames, a pushing block is fixed on the moving block, a pair of fixed blocks are slidably connected to the pushing block, a clamping block is fixed on a pair of the fixed blocks, and multiple pushing blocks are also slidably connected to positioning blocks, a card block is fixed on the positioning block, and multiple fixed blocks are provided with card grooves.

2. A tensile testing machine according to claim 1, characterized in that: An inner cavity is excavated inside the workbench, and a pair of motors are installed on the side walls of the inner cavity. The motors are connected to one end of the threaded rod.

3. A tensile testing machine according to claim 1, characterized in that: The workbench and the lifting plate are both equipped with electric push cylinders, and the electric push cylinders are equipped with telescopic rods.

4. A tensile testing machine according to claim 3, characterized in that: A control panel is fixed on one side of the pair of telescopic rods away from the electric push cylinder.

5. A tensile testing machine according to claim 4, characterized in that: A control groove is bored on each of the plurality of moving blocks, a control block is slidably connected to the side walls of each of the plurality of control grooves, and the control block is fixedly connected to the control plate.

6. A tensile testing machine according to claim 1, characterized in that: A plurality of the pushing blocks are all slidably connected with a pressing plate, and the pressing plate is fixedly connected to the positioning block.

7. A tensile testing machine according to claim 6, characterized in that: An extrusion block is fixed to one end of each of the plurality of pressing plates, and a spring is installed between the extrusion block and the moving block.

8. A tensile testing machine according to claim 1, characterized in that: An anti-slip layer is fixed on each of the clamping blocks.

9. A tensile testing machine according to claim 1, characterized in that: A plurality of limiting grooves are carved on the plurality of clamping blocks, and the side walls of the limiting grooves are slidably connected with limiting blocks, and the limiting blocks are fixedly connected to the moving blocks.

10. A tensile testing machine according to claim 1, characterized in that: A pair of slide grooves are respectively formed on a pair of the support frames, and a slider is slidably connected to the side walls of the slide grooves, and the slider is fixedly connected to the moving block.

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