CN221224454U

CN221224454U - Material mechanical property testing device

Info

Publication number: CN221224454U
Application number: CN202322953096.0U
Authority: CN
Inventors: 周克旺; 陈郑; 周静; 宋亮; 吕忠孝
Original assignee: Anhui Deyi Energy Technology Co ltd
Current assignee: Anhui Deyi Energy Technology Co ltd
Priority date: 2023-11-01
Filing date: 2023-11-01
Publication date: 2024-06-25
Anticipated expiration: 2033-11-01

Abstract

The utility model discloses a device for testing mechanical properties of materials, and belongs to the technical field of mechanical testing. The device comprises a testing device main body, a testing device and a testing device, wherein the testing device main body comprises a placing plate and a bracket structure arranged above the placing plate; the fixture fixing system is arranged on the placing plate, can be horizontally movably connected with the placing plate and is used for horizontally clamping and fixing a sample to be tested; the center block is positioned on the central line of the tool fixing system and is perpendicular to the tool fixing system, and is used for fixing the placement position of the sample to be tested and is detachable; and the workpiece compression system is positioned on one side of the tool fixing system, is fixedly connected to the bracket structure and is used for compressing the sample to be tested towards the direction close to the tool fixing system. The tool fixing system and the center block are matched for use, so that the problem that a plurality of materials need to be packaged firstly when tested together is avoided, the center block provides support for a sample to be tested, the stability of clamping is guaranteed, and the accuracy of a test result is improved.

Description

Material mechanical property testing device

Technical Field

The utility model belongs to the technical field of mechanical testing, and particularly relates to a device for testing mechanical properties of materials.

Background

In the battery production and processing process, the composite materials are required to meet various parameters in mechanical properties after being combined, so that the composite materials are required to be continuously matched with experimental materials of various different materials, and have different parameters after being combined, such as materials of lithium battery steel shells, different toughness, strength, hardness and the like after being combined, and the composite materials meeting the mechanical properties are required to be finally found through continuous tests, so that the compression resistance and the like of the battery after being processed are ensured.

The existing mechanical property detection device is mainly used for testing by packaging two test boards after being arranged side by side and then placing the test boards in a vision measuring cavity, and the packaging improves the compression resistance of the material, so that the test result cannot accurately reflect the compression resistance of the material. Especially, when the maximum pressure test is carried out on a plurality of single extremely thin materials, the packaging is inconvenient, but the packaging is not carried out, and the problems of unstable clamping and slipping of the sample on the clamp are easy to occur due to the extremely thin sample.

Disclosure of utility model

In order to solve the defects in the prior art, the utility model aims to provide a material mechanical property testing device which can realize stable clamping of a to-be-tested sample, the to-be-tested sample does not need to be packaged, the test can be directly carried out, and the accuracy of a test result is improved.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

The utility model provides a device for testing mechanical properties of materials, which comprises:

The testing device main body comprises a placing plate and a bracket structure arranged above the placing plate;

The tool fixing system is arranged on the placing plate and is in horizontal movable connection with the placing plate, and the tool fixing system is used for horizontally clamping and fixing a sample to be tested;

The center block is positioned on the central line of the tool fixing system and perpendicular to the tool fixing system, is used for fixing the placement position of a sample to be tested, and is detachable;

The workpiece compression system is positioned on one side of the tool fixing system, the workpiece compression device is fixedly connected to the support structure, and the workpiece compression system is used for compressing the sample to be tested towards the direction close to the tool fixing system.

In some embodiments of the utility model, the tooling fixture system comprises:

the movable bin is arranged in the inner wall of the top of the placing plate;

The bidirectional screw rod is arranged in the movable bin;

The first sample clamping mechanism and the second sample clamping mechanism are used for clamping a sample to be tested, the first sample clamping mechanism and the second sample clamping mechanism are symmetrically arranged at two ends of the bidirectional screw rod, and the first sample clamping mechanism and the second sample clamping mechanism are movably connected with the bidirectional screw rod;

The first motor is arranged at one end outside the movable bin and used for controlling the bidirectional screw rod to rotate, so as to control the relative movement of the first sample clamping mechanism and the second sample clamping mechanism.

In some embodiments of the utility model, the first sample holding mechanism is identical in structure to the second sample holding mechanism;

The first sample clamping mechanism includes: the first silk sleeve is arranged on the bidirectional screw rod; the clamping bin is arranged above the placing plate, a screw rod, a second screw sleeve and a driving motor are arranged in the clamping bin from bottom to top, the movable clamping plate is fixedly connected with the second screw sleeve, the fixed clamping plate is fixedly connected with the clamping bin, and the fixed clamping plate is arranged under the movable clamping plate and above the placing plate.

In some embodiments of the present utility model, a first anti-slip pad is provided on the lower surface of the movable clamping plate, and a second anti-slip pad is provided on the upper surface of the fixed clamping plate.

In some embodiments of the utility model, the workpiece compression system comprises:

The second motor is fixedly connected to the upper portion of the central position of the top cross beam of the support structure, a threaded cylinder and a threaded rod which are connected with a transmission shaft of the second motor are arranged on the lower portion of the central position of the top cross beam of the support structure, the bottom of the threaded rod is fixedly connected with a movable plate, the bottom of the movable plate is fixedly connected with a hydraulic telescopic cylinder, and the bottom of the hydraulic telescopic cylinder is fixedly connected with a pressure detector.

In some embodiments of the utility model, the screw thread section of thick bamboo is outside the protection storehouse, protection storehouse top and the support structure fixed connection.

In some embodiments of the utility model, the side walls of the left side and the right side of the protection cabin are provided with limiting blocks and limiting rods, the limiting blocks are fixed on the side walls of the protection cabin, and the limiting rods are connected with the protection cabin in a relatively vertical movement manner; the limiting rod penetrates through the limiting block, and the bottom of the limiting rod is fixedly connected with the moving plate.

In some embodiments of the utility model, the height of the restraining bar tip and the restraining block tip is less than or equal to the height between the pressure detector and the center block.

In some embodiments of the utility model, the testing device body further comprises a debris bin disposed inside the placement plate.

In some embodiments of the utility model, the testing device main body further comprises supporting hydraulic telescopic cylinders and bases, wherein the supporting hydraulic telescopic cylinders are respectively arranged at four corner positions of the bottom of the placing plate, and the bases are arranged at the bottom of each supporting hydraulic telescopic cylinder.

The beneficial effects of the utility model are as follows:

According to the mechanical property testing device for the materials, the fixture fixing system is arranged, when the mechanical laboratory performs pressure testing on the materials, the center line of the materials is aligned to the center block and is placed on the placing plate, the first motor works, the two-way screw rod drives the fixed clamping plates to be close to each other through the first screw sleeve, two sides of the materials are contacted with the second anti-slip pad glued on the fixed clamping plates, the motor is driven to work, the screw rod drives the movable clamping plates to move downwards through the second screw sleeve, the first anti-slip pad is contacted with the materials to be fixed, the materials are prevented from moving during testing, the effect of the results is prevented, and the accuracy of the testing results is greatly improved. According to the utility model, the fixture fixing system is arranged, the clamping mechanism is controlled by the first motor to horizontally move to be in contact with the sample, and then the movable clamping plate is controlled by the driving motor to move, so that the stable clamping of the sample is realized. The tool fixing system and the center block are matched for use, so that the problem that a plurality of materials need to be packaged firstly when tested together is avoided, the center block provides support for a sample to be tested, and the clamping stability is guaranteed.

The device for testing the mechanical properties of the materials can test a plurality of materials together, does not need to package the materials, can directly place the materials on the center block in sequence, and can directly perform fixed test.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic diagram of a three-dimensional structure of a device for testing mechanical properties of materials according to the present utility model;

FIG. 2 is a schematic diagram showing a cross-sectional front view of a device for testing mechanical properties of materials according to the present utility model;

FIG. 3 is a schematic diagram of a three-dimensional structure of a protection cabin of the material mechanical property testing device of the utility model;

Fig. 4 is a schematic diagram of a fixing structure of the device for testing mechanical properties of materials according to the present utility model.

In the figure: 1. placing a plate; 2. a tool fixing system; 201. moving the bin; 202. a first motor; 203. a two-way screw rod; 204. a center block; 205. a first wire sleeve; 206. clamping the bin; 207. a driving motor; 208. a screw rod; 209. a second wire sleeve; 210. moving the clamping plate; 211. a first cleat; 212. fixing the clamping plate; 213. a second cleat; 3. supporting a hydraulic telescopic cylinder; 4. a base; 5. sundry bin; 6. a bracket; 7. a second motor; 8. a protection bin; 9. a thread cylinder; 10. a threaded rod; 11. a moving plate; 12. a hydraulic telescopic cylinder; 13. a pressure detector; 14. a limiting block; 15. and a restraining bar.

Detailed Description

In order to enable those skilled in the art to more clearly understand the technical scheme of the present utility model, the technical scheme of the present utility model will be described in detail with reference to specific embodiments.

Fig. 1 is a schematic perspective view of a mechanical property testing device for materials according to an embodiment of the present utility model, fig. 2 is a schematic front sectional view of a mechanical property testing device for materials according to an embodiment of the present utility model, fig. 3 is a schematic perspective view of a protection cabin of a mechanical property testing device for materials according to an embodiment of the present utility model, and fig. 4 is a schematic fixed structure of a mechanical property testing device for materials according to an embodiment of the present utility model.

Referring to fig. 1 to 4, the present utility model provides a device for testing mechanical properties of materials, for testing compression resistance of materials to be tested, comprising: the testing device comprises a testing device main body, a tool fixing system 2, a center block 204 and a workpiece compression system.

In the embodiment of the utility model, the main body of the testing device can adopt a material compression mechanical testing machine in the related technology: a placement plate 1 which can be used as a base is provided, and a door-shaped bracket 6 is oppositely arranged on the upper side of the placement plate 1; the fixture fixing system and the center block 204 are arranged on the placing plate 1, and the workpiece compression system is arranged on the lower surface of the top cross beam of the bracket 6 and is in the same plane with the fixture fixing system.

Specifically, referring to fig. 1 and 2, in the embodiment of the present utility model, a fixture fixing system 2 is disposed on a main body of a testing device. Taking the situation shown in fig. 1 and 2 as an example for illustration, the tool fixture system 2 may be arranged on the placement plate 1. In addition, in the embodiment of the utility model, the fixture fixing system 2 and the placing plate 1 can be horizontally movably connected.

It should be noted that, in the embodiment of the present utility model, the connection of the tool fixing system 2 and the placement plate 1 capable of moving horizontally may specifically refer to: the position of the tool fixture system 2 on the placement plate 1 may vary. As shown in fig. 1, the tool fixing system 2 is integrally perpendicular to the placement plate 1 in fig. 1 and 2, and the position of the tool fixing system 2 on the placement plate 1 is variable. For example, as shown in fig. 1 and 2, the structure of the tool fixing system 2 located at the upper portion of the placement plate 1 in fig. 1 and 2 may be closely attached to the inner wall of the bracket 6. In some application scenarios, the tool fixing system 2 in fig. 1 and 2 may also be configured to move in a straight line against the upper portion of the placement plate 1. The straight line refers to a straight line formed between the structures of the tool fixing system 2 located at the upper portion of the placement plate 1 in fig. 1 and 2.

It should be noted that the distance between the structures of the fixture fixing system 2 located at the upper portion of the placing plate 1 in fig. 1 and 2 can be adjusted according to the size of the sample.

In this way, after the test sample is connected to the tool fixing system 2, the test sample can be stably clamped by the tool fixing system 2 by moving the tool fixing system 2 in the structure of the upper portion of the placing plate 1 in fig. 1 and 2.

As shown in fig. 4, in the embodiment of the present utility model, the fixture fixing system includes a moving bin 201, a first motor 202, a bidirectional screw 203, a first sample clamping mechanism and a second sample clamping mechanism. The movable bin 201 is fixed in the inner wall of the top of the placing plate 1, a bidirectional screw rod 203 is arranged in the movable bin, a first motor 202 is arranged at one end outside the movable bin, and a first sample clamping mechanism and a second sample clamping mechanism which are movably connected and used for clamping a sample to be tested are arranged on the bidirectional screw rod 203. The first sample clamping mechanism and the second sample clamping mechanism are symmetrically arranged at two ends of the bidirectional screw 203.

Specifically, in the embodiment of the present utility model, when the device is specifically set, the first motor 202 is fixed on the outer wall of one side of the moving bin 201 by a bolt, the output end of the first motor 202 penetrates through the wall of one side of the moving bin 201 and is connected with the bidirectional screw 203 in the moving bin 201, and the first motor 202 drives the bidirectional screw 203 to rotate, so as to drive the first sample clamping mechanism and the second sample clamping mechanism connected with the bidirectional screw to move in opposite directions or move in opposite directions.

With continued reference to fig. 4, in the embodiment of the present utility model, the first sample clamping mechanism and the second sample clamping mechanism have the same structure, and the first sample clamping mechanism and the second sample clamping mechanism are symmetrically disposed on the bidirectional screw 203 with respect to the vertical center line of the bidirectional screw 203.

Specifically, the first sample clamping mechanism includes a first wire sleeve 206, a clamping chamber 206, a driving motor 207, a screw rod 208, a second wire sleeve 209, a movable clamping plate 210, and a fixed clamping plate 212. When specifically setting up, first silk cover 206 and two-way lead screw 203 pass through the thread bush assorted, and the top of first silk cover 206 is fixed with and presss from both sides tight storehouse 206, presss from both sides tight storehouse 206 vertical setting on placing board 1 top outer wall, presss from both sides tight storehouse 206 and places board 1 contact site fixedly connected with fixed clamping plate 212, fixed clamping plate 212 level sets up. The fixed clamping plates 212 cannot move up and down, but can only move along with the clamping bin 206, namely move horizontally at the top of the moving bin 201, and stop moving after the two fixed clamping plates 212 are contacted with the sample to be tested. The outer wall of the top of the clamping bin 206 is fixed with a driving motor 207 through a bolt, a screw rod 208 is connected inside the clamping bin 206 through a rotating shaft, a matched second screw sleeve 209 is sleeved on the screw rod through a thread, a movable clamping plate 210 is fixed on one side of the second screw sleeve 209, and the movable clamping plate 210 is horizontally arranged; the movable clamping plate 210 is directly above the fixed clamping plate 212, and the driving motor 207 controls the movable clamping plate 210 to move up and down, so that the clamping of the sample is realized.

The second sample clamping mechanism is identical to the first sample clamping mechanism in structure, and the first sample clamping mechanism and the second sample clamping mechanism are symmetrically arranged on the bidirectional screw 203 with respect to the vertical center line of the bidirectional screw 203.

In some examples, to enhance the stability of the clamped sample, a first anti-slip pad 211 is provided on the lower surface of the movable clamping plate 210, and a second anti-slip pad 213 is provided on the upper surface of the fixed clamping plate 212.

When the mechanical laboratory tests the material pressure, the center line of the sample to be tested is aligned with the center block 204 and is placed on the placing plate 1, the first motor 202 works, the two-way screw 203 drives the fixed clamping plates 212 to be close to each other through the first screw sleeve 205, two sides of the sample to be tested are contacted with the second anti-slip pads 213 glued on the fixed clamping plates 212, the driving motor 207 works, the screw 208 drives the movable clamping plates 210 to move downwards through the second screw sleeve 209, the first anti-slip pads 211 are fixed in contact with the material, and the material movement during the test is prevented from affecting the result.

In the embodiment of the utility model, the sample to be tested can be a material or coiled material of a lithium battery steel shell, and of course, in specific application, the sample to be tested can also be other samples needing to be tested for compression resistance. The embodiment of the utility model is described by taking a sample to be tested as a material belt or an adhesive belt as a specific example.

In specific implementation, the sample to be tested does not need to be packaged, when the material is subjected to mechanical property test, the center line of the material is aligned with the center block 204 and is placed on the placing plate 1, the tool fixing system 2 moves in the structure of the upper part of the placing plate 1 in fig. 1 and 2, stable clamping of the sample to be tested is realized, and the influence of movement of the material on the result during the test is prevented.

In the embodiment of the present utility model, the center block 204 is located on the center line of the tool fixing system 2 and is perpendicular to the tool fixing system 2. The center block 204 is removable, and the center block 204 is merely a function of centering, and the center block 204 can be removed after the test sample is fixed.

Specifically, the center block 204 is a rectangular block for positioning the placement position of the sample to be measured. When the mechanical property test is performed on the test sample, the center line of the test sample is aligned with the center block 204 and placed on the placing plate 1.

In some examples, the center block 204 is a rectangular block, and referring to fig. 1, the center block 204 is disposed at the center of the top outer wall of the placement plate 1 and is located on the center line of the moving bin 201, perpendicular to the moving bin 201.

Or in some examples, the center block 204 may be two rectangular blocks (not shown in the figure), where the two rectangular blocks are disposed in parallel on the top outer wall of the placement board 1, perpendicular to the moving bin 201, and the midpoint between the two rectangular blocks is located on the center line of the moving bin 201.

With continued reference to fig. 2 and 3, in an embodiment of the present utility model, the workpiece compression system is located at one side of the tool fixing system 2, the workpiece compression device is fixedly connected to the support 6, and the workpiece compression system is used for compressing the sample to be tested in a direction approaching to the tool fixing system 2.

It will be appreciated that in some examples, the workpiece compression system being located on one side of the tooling fixture system 2 may specifically refer to: the workpiece compression system is located on the upper side of the tooling fixing system 2.

Specifically, in the embodiment of the present utility model, when the workpiece compression system is specifically set, the workpiece compression system may be located between the top beam of the bracket 6 and the tool fixing system 2.

In some examples, referring to fig. 2, the workpiece compression system is fixedly attached to the top beam of the bracket 6 at a central location of the beam.

In the embodiment of the utility model, the workpiece compression system comprises a second motor 7, a threaded cylinder 9, a threaded rod 10, a moving plate 11, a hydraulic telescopic cylinder 12 and a pressure detector 13. The second motor 7 is fixedly connected to the upper part of the central position of the top beam of the bracket 6, the lower part of the central position of the top beam of the bracket 6 is directly provided with a threaded cylinder 9 and a threaded rod 10 which are connected with a transmission shaft of the second motor 7, the bottom of the threaded rod 10 is fixedly connected with a moving plate 11, the bottom of the moving plate 11 is fixedly connected with a hydraulic telescopic cylinder 12, and the bottom of the hydraulic telescopic cylinder 12 is fixedly connected with a pressure detector 13.

Specifically, in the embodiment of the utility model, when the device is specifically arranged, the support 6 is fixed on the top outer wall of the placing plate 1, the second motor 8 is fixed on the top outer wall of the support 6 through bolts, the top inner wall of the support 6 is rotationally connected with the threaded cylinder 9 through a rotating shaft, the output end of the second motor 8 penetrates through the top wall of the support 6 and is fixedly connected with one end of the threaded cylinder 9, the threaded cylinder 9 is internally connected with the threaded rod 10 through threads, and the bottom of the threaded rod 10 is rotationally connected with the moving plate 11 through the rotating shaft.

It will be appreciated that the top outer wall of the bracket 6 is the wall on the upper side of the top beam of the bracket 6, i.e. the wall on the outer side of the mechanical property testing device formed by the bracket 6 and the placing plate 1. The top inner wall of the bracket 6 is the wall of the lower side of the top beam of the bracket 6, i.e. the wall in the space formed by the bracket 6 and the placing plate 1.

Specifically, in the embodiment of the present utility model, when the device is specifically set, the hydraulic telescopic cylinder 12 is fixed at the bottom of the moving plate 11, and the pressure detector 13 is fixed at the output end of the hydraulic telescopic cylinder 12 through a bolt.

In actual detection, the second motor 8 drives the moving plate 11 to move up and down, the pressure detector 13 is independently controlled to move up and down by the hydraulic telescopic cylinder 12, so that the pressure detector 13 can be prevented from shaking during the test,

In the embodiment of the utility model, a protection bin 8 is arranged outside the threaded cylinder 9, and the top of the protection bin 8 is fixedly connected with the bracket 6. The protection bin 8 plays a role in protection, prevents the threaded cylinder 9 inside the protection bin 8 from shaking, and prevents the threaded cylinder 9 from receiving external impact.

Specifically, in the embodiment of the utility model, when the device is specifically arranged, the protection bin 8 is fixed on the inner wall of the top of the bracket 6, and the inside of the protection bin 8 is rotationally connected with the thread cylinder 9 through the rotating shaft; the output end of the second motor 7 penetrates through the wall at the top of the bracket 6 and the wall at the top of the protection bin 8 and is fixedly connected with one end of the thread cylinder 9.

In the embodiment of the utility model, the side walls on the left side and the right side of the protection cabin 8 are provided with the limiting block 14 and the limiting rod 15, the limiting block 14 is fixed on the side wall of the protection cabin 8, and the limiting rod 15 is connected with the protection cabin 8 in a relatively vertical movement manner; the limiting rod 15 passes through the limiting block 14, and the bottom of the limiting rod 15 is fixedly connected with the moving plate 11.

As shown in fig. 3, specifically, in the embodiment of the present utility model, in a specific setting, the limiting rods 15 are fixed on the top of the moving plate 11, and two groups of limiting rods 15 are symmetrically arranged about the vertical center line of the moving plate 11; the outer wall of the protection cabin 8 is fixed with a limiting block 14, and the limiting block 14 is symmetrically provided with two groups about the vertical center line of the protection cabin 8, wherein a limiting rod 15 penetrates through the inside of the limiting block 14.

Further, the height between the top end of the limiting rod 15 and the top end of the limiting block 14 is smaller than or equal to the height between the pressure detector 13 and the center block 204. The arrangement of the limiting rod 15 and the limiting block 14 prevents the pressure detector 13 from being rigidly collided with the center block 204, so that the pressure detector 13 is damaged, and the normal operation of the mechanical property detection device is protected.

As shown in fig. 1, in the embodiment of the present utility model, the testing device body further includes a sundry bin 5, and the sundry bin 5 is disposed inside the placement plate 1.

Specifically, in the embodiment of the present utility model, when the pressure sensor 13 and other sundries are stored, the sundry bin 5 is slidably connected to the inner wall of the bottom of the placement plate 1.

As shown in fig. 1, in the embodiment of the present utility model, the testing device main body further includes a supporting hydraulic telescopic cylinder 3 and a base 4, the supporting hydraulic telescopic cylinders 3 are respectively disposed at four corner positions of the bottom of the placement plate 1, and the base 4 is disposed at the bottom of each supporting hydraulic telescopic cylinder 3.

Specifically, in the embodiment of the present utility model, when the device is specifically set, a plurality of supporting hydraulic telescopic cylinders 3 are fixed on the outer wall of the bottom of the placement plate 1 through bolts, and a base 4 is fixed on the bottom of the supporting hydraulic telescopic cylinders. The device is placed in the laboratory through supporting the flexible jar 3 of hydraulic pressure, is fixed with base 4 and ground contact surface increase in the bottom of supporting the flexible jar 3 of hydraulic pressure, and is more stable, supports the flexible jar 3 work of hydraulic pressure and drives the device and adjust when needs adjust the device height, supports the flexible jar 3 of hydraulic pressure and passes through the bolt fastening and is placing board 1 bottom.

The testing process of the material mechanical property testing device is as follows:

Firstly, the device is placed in a laboratory through the supporting hydraulic telescopic cylinder 3, the contact surface between the base 4 and the ground is fixed at the bottom of the supporting hydraulic telescopic cylinder 3, the device is more stable, the supporting hydraulic telescopic cylinder 3 works to drive the device to adjust when the height of the device needs to be adjusted, and the supporting hydraulic telescopic cylinder 3 is fixed at the bottom of the placing plate 1 through bolts.

Secondly, the center line of the sample to be tested is aligned with the center block 204 and is placed on the placing plate 1, the first motor 202 works, the two-way screw rod 203 drives the fixed clamping plates 212 to be close to each other through the first screw sleeve 205, two sides of the sample to be tested are in contact with the second anti-slip pads 213 glued on the fixed clamping plates 212, the driving motor 207 works, the screw rod 208 drives the movable clamping plates 210 to move downwards through the second screw sleeve 209, and the first anti-slip pads 211 are fixed in contact with materials. After the fixing is completed, the center block 204 is extracted. In the process of testing a few very thin materials, the environment test in a laboratory does not have wind in the external environment, and the materials are blown to shake, so that the test result is inaccurate.

Subsequently, the second motor 7 works, the moving plate 11 is driven to move downwards through the threaded connection of the threaded cylinder 9 and the threaded rod 10, the limiting rod 15 is driven to move in the limiting block 14 when the moving plate 11 moves downwards, so that the moving plate 11 is limited to move up and down only, and the second motor 7 stops working after the pressure detector 13 is in contact with a material.

Finally, the hydraulic telescopic cylinder 12 drives the pressure detector 13 to move downwards for testing. The pressure detector 13 is fixedly connected with the hydraulic telescopic cylinder 12 through bolts, so that the hydraulic telescopic cylinder is convenient to detach, and some sundries can be placed in the sundry bin 5.

According to the material mechanical property testing device, through the arrangement of the tool fixing system 2, when the material pressure test is carried out, the test sample can be tested without packaging, even if the material is very thin, the test sample is firmly held by the arrangement of the second anti-slip pad 213 and the first anti-slip pad 211, so that the test sample is prevented from slipping on the clamp due to the fact that the clamp is too thin, meanwhile, the influence of the external environment on the detection result is avoided by stable holding, and the accuracy of the test result is ensured.

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

1. A material mechanical property testing device, comprising:

2. The material mechanical property testing device according to claim 1, wherein the tool fixing system comprises:

the movable bin is arranged in the inner wall of the top of the placing plate;

The bidirectional screw rod is arranged in the movable bin;

3. The device for testing mechanical properties of materials according to claim 2, wherein the first sample holding mechanism and the second sample holding mechanism are identical in structure;

4. The device for testing mechanical properties of materials according to claim 3, wherein the movable clamping plate is provided with a first anti-slip pad on the lower surface and a second anti-slip pad on the upper surface.

5. The material mechanical property testing device of claim 1, wherein the workpiece compression system comprises:

6. The device for testing mechanical properties of materials according to claim 5, wherein a protection bin is arranged outside the threaded cylinder, and the top of the protection bin is fixedly connected with the support structure.

7. The device for testing mechanical properties of materials according to claim 6, wherein the side walls of the left side and the right side of the protection bin are provided with limiting blocks and limiting rods, the limiting blocks are fixed on the side walls of the protection bin, and the limiting rods are connected with the protection bin in a relatively vertical movement manner; the limiting rod penetrates through the limiting block, and the bottom of the limiting rod is fixedly connected with the moving plate.

8. The device of claim 7, wherein the height of the top end of the restraining bar and the top end of the restraining block is less than or equal to the height between the pressure detector and the center block.

9. The material mechanical property testing device according to claim 1, wherein the testing device body further comprises a debris bin disposed inside the placement plate.

10. The device for testing mechanical properties of materials according to any one of claims 2 to 9, wherein the testing device main body further comprises supporting hydraulic telescopic cylinders and bases, the four corner positions of the bottom of the placing plate are respectively provided with the supporting hydraulic telescopic cylinders, and the base is arranged at the bottom of each supporting hydraulic telescopic cylinder.