Electronic universal testing machine for high polymer material testing experiment

Abstract

The utility model discloses an electronic universal testing machine for a high polymer material test experiment, which relates to the technical field of testing machines and comprises a device main body, a driving screw rod, a lifting rod, a top plate, a bearing plate, an air cylinder, a piston rod, a matching block and a linkage block, protective blocks are connected to two sides of the linkage block, and a threaded block is connected to the outer side of the driving screw rod. An anti-skid rod is connected to the lower portion of the threaded block, a sliding groove is formed in the lower portion of the anti-skid rod, a first clamping block is connected to the upper portion of the threaded block, and a second clamping block is arranged on the upper portion of the first clamping block. The linkage block and the protection block are arranged on the outer side of the piston rod, the protection block and the linkage block can ascend and descend along with ascending and descending of the piston rod, so that the protection block is located at a low position when a tensile test is conducted, feeding and discharging and the tensile test are not affected, and when an extrusion test is conducted, the piston rod moves upwards and drives the protection block to ascend as well. A test area is protected, and safety accidents caused by extrusion cracking are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of testing machines, in particular to an electronic universal testing machine used for polymer material testing experiments. Background Art

[0002] The application of electronic universal testing machines is becoming more and more extensive. Universal testing machines are material testing machines that integrate functions such as tension, bending, compression, shear and ring stiffness. Their working principle is that the computer system controls the rotation of the servo motor through the controller and the speed control system, and after being decelerated by the reduction system, the moving beam is driven up and down through the static and dense lead screw pair to complete various mechanical property tests such as tension, compression, bending, shear, etc. on polymer materials.

[0003] The existing patent (Announcement No.: CN202321577709.9) discloses an electronic universal testing machine, which can automatically clamp the test product, thereby improving the clamping efficiency, avoiding the traditional operation of manual clamping, and improving the convenience and efficiency of the test. At the same time, it can form a flat platform at the bottom of the chuck, so as to facilitate the compression test of the test product. Due to the flatness of the extrusion platform, it can avoid affecting the compression test accuracy of the test product. At the same time, it can synchronously clamp two different test products for tensile testing, so as to facilitate the intuitive judgment of the tensile strength comparison between the two test products. In the process of implementing this solution, it was found that the following problems exist in the prior art and have not been well solved:

[0004] The device uses six driving cylinders during use, resulting in a huge waste of energy. It is difficult to maintain the same level during use, and is directly exposed to the outside world during the extrusion test, so debris is easily splashed. Directly setting up a protective mechanism can easily affect the handling of materials. Utility Model Content

[0005] In order to improve the above-mentioned device which uses multiple cylinders, resulting in energy waste and the problem that the protective mechanism easily affects the material taking, the utility model provides an electronic universal testing machine for polymer material testing experiments.

[0006] The utility model provides an electronic universal testing machine for polymer material testing experiments, which adopts the following technical solutions:

[0007] An electronic universal testing machine for polymer material testing experiments, comprising a device body and a driving screw, wherein lifting rods are connected to both sides of the device body, a top plate is connected to the top of the lifting rods, a receiving plate is connected to the top of the device body, a cylinder is connected to the top of the receiving plate, a piston rod is connected to the top of the cylinder, a matching block is connected to the top of the piston rod, a linkage block is connected to the outside of the piston rod, and protective blocks are connected to both sides of the linkage block;

[0008] The outer side of the driving screw rod is connected with a threaded block, the lower part of the threaded block is connected with an anti-slip rod, a sliding groove is provided below the anti-slip rod, the upper part of the threaded block is connected with a first clamping block, and the upper part of the first clamping block is provided with a second clamping block.

[0009] Through the above technical solution, it is convenient to drive the first clamping block and the second clamping block to move by driving the screw rod, thereby saving the number of cylinders and reducing energy consumption. At the same time, by providing a protective block that rises and falls together with the piston rod, the protective block does not affect the use of the device when the extrusion test is not being carried out, and can prevent material splashing and causing safety hazards during extrusion.

[0010] Optionally, in the above-mentioned electronic universal testing machine for polymer material testing experiments, lifting rods are symmetrically distributed on both sides of the device body, the lifting rods and the top plate are lifted and lowered in an integrated manner, and a receiving plate is also provided below the center of the top plate.

[0011] Through the above technical solution, it is convenient to drive the top plate to rise and fall through the lifting rod, thereby facilitating the tensile test.

[0012] Optionally, in the above-mentioned electronic universal testing machine for polymer material testing experiments, the connection between the cylinder and the piston rod is a piston connection, the piston rod and the matching block are lifted and lowered in an integrated manner, the connection between the matching block and the receiving plate is a sliding connection, and a groove is provided in the center of the receiving plate.

[0013] Through the above technical solution, it is convenient to extend the receiving plate through the matching block to perform an anti-extrusion test on the material.

[0014] Optionally, in the above-mentioned electronic universal testing machine for polymer material testing experiments, the linkage block and the piston rod are lifted and lowered in an integrated manner, and protective blocks are symmetrically distributed on both sides of the linkage block, and the protective blocks are tightly fitted to both sides of the receiving plate.

[0015] Through the above technical solution, it is convenient to drive the protection block to rise and fall through the cooperation between the linkage block and the piston rod, so as to protect the extrusion test when it is needed.

[0016] Optionally, in the above-mentioned electronic universal testing machine for polymer material testing experiments, the connection between the driving screw and the threaded block is a threaded connection, the connection between the threaded block and the anti-slip rod is a hot-melt connection, and the connection between the anti-slip rod and the sliding groove is a sliding connection.

[0017] Through the above technical solution, it is convenient to limit the threaded block through the anti-slip rod to ensure its stable movement.

[0018] Optionally, in the above-mentioned electronic universal testing machine for polymer material testing experiments, the first clamping block and the threaded block are installed in an integrated manner, the first clamping block is symmetrically distributed on both sides of the receiving plate, and the second clamping block is correspondingly distributed above the first clamping block.

[0019] Through the above technical solution, it is convenient to use the first clamping block to fix and limit the material to ensure that the tensile test can be carried out.

[0020] In summary, the present invention has at least one of the following beneficial effects:

[0021] By arranging a driving screw and a threaded block on both sides of the center of the device body, the driving screw can simultaneously drive the threaded block to move, so that the first clamping block and the second clamping block can complete the test clamping work of the material to be tested, complete the integrated operation of the equipment, reduce energy consumption, and quickly complete the fixed clamping work;

[0022] By arranging a linkage block and a protective block on the outside of the piston rod, the protective block and the linkage block will rise and fall with the rise and fall of the piston rod, so that when the tensile test is performed, the protective block is at a low position and does not affect the loading and unloading of materials and the tensile test. When the extrusion test is performed, the piston rod moves upward, which also drives the protective block to rise, protect the test area, and prevent safety accidents caused by extrusion and cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the front view structure of the protection block of the utility model;

[0025] Figure 3 This is a schematic diagram of the top view of the first clamping block of the utility model;

[0026] Figure 4 This is a schematic diagram of the top view of the anti-slip rod of the utility model;

[0027] Figure 5 It is a schematic diagram of the top view structure of the protective block of the utility model.

[0028] In the figure: 1. Device body; 2. Lifting rod; 3. Top plate; 4. Cylinder; 5. Piston rod; 6. Linkage block; 7. Matching block; 8. Driving screw; 9. Threaded block; 10. First clamping block; 11. Second clamping block; 12. Protective block; 13. Attachment plate; 14. Anti-slip rod; 15. Sliding groove. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 The utility model is described in further detail.

[0030] Please refer to the attached figure in the instruction manual Figure 1-5 The utility model provides an embodiment: an electronic universal testing machine for polymer material testing experiments, including a device body 1 and a driving screw 8, the two sides of the device body 1 are connected with lifting rods 2, the upper part of the lifting rods 2 is connected with a top plate 3, the upper part of the device body 1 is connected with a receiving plate 13, the cylinder 4 can be fixed by the receiving plate 13 to ensure the subsequent work, the upper part of the receiving plate 13 is connected with a cylinder 4, the upper part of the cylinder 4 is connected with a piston rod 5, the upper part of the piston rod 5 is connected with a matching block 7, the piston rod 5 is used to drive the matching block 7 to rise and fall, so as to perform an extrusion test, the outer side of the piston rod 5 is connected with a linkage block 6, the two sides of the linkage block 6 are connected with protective blocks 12, and the protective blocks 12 are used to protect the extrusion to prevent cracking;

[0031] A threaded block 9 is connected to the outer side of the driving screw rod 8, an anti-slip rod 14 is connected to the bottom of the threaded block 9, a sliding groove 15 is provided below the anti-slip rod 14, and the sliding groove 15 is used to limit the anti-slip rod 14 to ensure the smooth operation of the threaded block 9. A first clamping block 10 is connected to the top of the threaded block 9, and a second clamping block 11 is provided above the first clamping block 10. The first clamping block 10 and the second clamping block 11 are used to fix the material so as to perform a tensile test.

[0032] See the attached drawings in the specification Figure 1-5 The lifting rods 2 are symmetrically distributed on both sides of the device body 1. The lifting rods 2 and the top plate 3 are lifted and lowered in an integrated manner. A receiving plate 13 is also provided below the center of the top plate 3. The lifting rods 2 drive the top plate 3 to rise and fall, thereby facilitating the tensile test.

[0033] See the attached drawings in the specification Figure 1-5 The connection between the cylinder 4 and the piston rod 5 is a piston connection. The piston rod 5 and the matching block 7 are lifted and lowered in an integrated manner. The connection between the matching block 7 and the receiving plate 13 is a sliding connection. A groove is provided in the center of the receiving plate 13. The receiving plate 13 is extended through the matching block 7 to perform an anti-extrusion test on the material.

[0034] See the attached drawings in the specification Figure 1-5The linkage block 6 and the piston rod 5 are lifted and lowered in an integrated manner. The protection blocks 12 are symmetrically distributed on both sides of the linkage block 6. The protection blocks 12 are tightly fitted on both sides of the receiving plate 13. The linkage block 6 cooperates with the piston rod 5 to drive the protection blocks 12 to rise and fall, thereby protecting the extrusion test when needed.

[0035] See the attached drawings in the specification Figure 1-5 The connection mode between the driving screw rod 8 and the threaded block 9 is threaded connection, the connection mode between the threaded block 9 and the anti-slip rod 14 is hot-melt connection, and the connection mode between the anti-slip rod 14 and the sliding groove 15 is sliding connection.

[0036] See the attached drawings in the specification Figure 1-5 The first clamping block 10 is installed integrally with the threaded block 9. The first clamping block 10 is symmetrically distributed on both sides of the receiving plate 13. The second clamping block 11 is correspondingly distributed above the first clamping block 10. The first clamping block 10 is used to fix and limit the material to ensure that the tensile test can be carried out.

[0037] Working principle: When using the electronic universal testing machine for polymer material testing experiments, first, when a tensile test is required, place the two ends of the material to be tested at the center of the first clamping block 10 and the second clamping block 11, then turn on the motor switch on one side of the driving screw 8, so that the driving screw 8 starts to rotate and makes a threaded motion with the threaded block 9. Under the limit of the anti-slip rod 14, the threaded block 9 moves stably, and at the same time, the threaded block 9 drives the first clamping block 10 and the second clamping block 11 to move, and fixes the two sides of the material. Then, the lifting rod 2 drives the top plate 3 to rise and fall, so that the second clamping block 11 rises and falls, and the tensile test of the material is completed;

[0038] As mentioned above, when an extrusion test is required, the cylinder 4 drives the piston rod 5 to rise, causing the linkage block 6 to rise and slide out the receiving block 13 to extrude the material for an extrusion test. At the same time, when the piston rod 5 rises, it drives the protective block 12 to rise through the linkage block 6, so that the protective block 12 is on the outside of the first clamping block 10 and the second clamping block 11, thereby protecting the working environment when cracking occurs during the extrusion test and avoiding catapulting to the surrounding area to cause a safety accident. After the extrusion test, the protective block 12 is also reset when the matching block 7 is reset.

[0039] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An electronic universal testing machine for polymer material testing experiments, comprising a device body (1) and a drive screw (8), characterized in that: The device body (1) is connected to lifting rods (2) on both sides, the lifting rods (2) are connected to a top plate (3) on the top, the device body (1) is connected to a receiving plate (13) on the top, the receiving plate (13) is connected to a cylinder (4) on the top, the cylinder (4) is connected to a piston rod (5) on the top, the piston rod (5) is connected to a matching block (7) on the top, the outer side of the piston rod (5) is connected to a linkage block (6), and the linkage block (6) is connected to protective blocks (12) on both sides; The outer side of the driving screw rod (8) is connected to a threaded block (9), the lower side of the threaded block (9) is connected to an anti-slip rod (14), a sliding groove (15) is provided below the anti-slip rod (14), the upper side of the threaded block (9) is connected to a first clamping block (10), and a second clamping block (11) is provided above the first clamping block (10).

2. The electronic universal testing machine for polymer material testing experiments according to claim 1, characterized in that: Lifting rods (2) are symmetrically distributed on both sides of the device body (1); the lifting rods (2) and the top plate (3) are lifted and lowered in an integrated manner; and a receiving plate (13) is also provided below the center of the top plate (3).

3. The electronic universal testing machine for polymer material testing experiments according to claim 1, characterized in that: The connection mode between the cylinder (4) and the piston rod (5) is a piston connection, the piston rod (5) and the matching block (7) are lifted and lowered in an integrated manner, the connection mode between the matching block (7) and the receiving plate (13) is a sliding connection, and a groove is provided at the center of the receiving plate (13).

4. The electronic universal testing machine for polymer material testing experiments according to claim 1, characterized in that: The linkage block (6) and the piston rod (5) are lifted and lowered in an integrated manner, and protective blocks (12) are symmetrically distributed on both sides of the linkage block (6), and the protective blocks (12) are tightly fitted on both sides of the receiving plate (13).

5. The electronic universal testing machine for polymer material testing experiments according to claim 1, characterized in that: The driving screw rod (8) and the threaded block (9) are connected by threaded connection, the threaded block (9) and the anti-slip rod (14) are connected by hot-melt connection, and the anti-slip rod (14) and the sliding groove (15) are connected by sliding connection.

6. The electronic universal testing machine for polymer material testing experiments according to claim 1, characterized in that: The first clamping block (10) and the threaded block (9) are installed in an integrated manner; the first clamping block (10) is symmetrically distributed on both sides of the receiving plate (13); and a second clamping block (11) is correspondingly distributed above the first clamping block (10).

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