Hydraulic servo testing machine for material pull-up test
By designing a combined structure of material clamping blocks and clamping plates in the hydraulic servo test machine, combined with the design of winding ring grooves and winding vertical grooves, the problem of sliding or loosening of the material during the pull-up test is solved, and the accuracy of the test data and the reliability of the test are achieved.
Patent Information
- Application Number
- CN202420738518.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-11
AI Technical Summary
In the existing material pull-up test, the material is prone to slip or looseness after being clamped, resulting in inaccurate test data or inability to proceed.
A hydraulic servo testing machine is designed, which adopts a combined structure of material clamping blocks and clamping plates. Through the design of winding ring grooves and winding vertical grooves, the material is securely connected to the clamping blocks, and the combination of anti-slip strips and C-shaped grooves prevents the material from sliding or separation during the test.
It effectively avoids separation of the material from the clamping block during the pull-up test, ensures the accuracy and reliability of the test data, and ensures the smooth progress of the test.
Smart Images
Figure CN222671555U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material pulling test, in particular to a hydraulic servo testing machine for material pulling test. Background Art
[0002] The pull test refers to a test in which the ends of the material are fixed, and then one or both ends of the material are pulled at the same time until the material cannot withstand the tensile force and breaks. The pull test is used to test the tensile strength of the material and is often used for plastic materials.
[0003] A hydraulic servo testing machine is required for the tensile test. The hydraulic servo testing machine uses the hydraulic principle to pull the material until the material breaks under stress. The hydraulic servo testing machine uses a non-closed test method when conducting the tensile test to ensure that no harm is caused to the surrounding personnel when the material breaks.
[0004] However, in the prior art, when a material is subjected to a tensile test, after being clamped and pulled, the material and the clamp may slip or loosen, or even directly separate from the clamp, resulting in inaccurate test data results and errors, or even making the material tensile test impossible to conduct. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a hydraulic servo testing machine for material pulling test.
[0006] In order to solve the above technical problems, the technical solution of the utility model is:
[0007] A hydraulic servo testing machine for material pulling test comprises a base, a protective shell is fixed on the top of the base, a door panel is rotatably installed on the front surface of the protective shell, two symmetrically arranged hydraulic rods are installed inside the protective shell, one of the hydraulic rods is fixed to the top surface of the protective shell, and the other hydraulic rod is fixed to the upper end surface of the base, the movable ends of the two hydraulic rods are fixed with fixed frames, a material clamping block is fixed between the two ends of the fixed frame, and clamping plates are movably installed on both sides of the material clamping block.
[0008] Preferably, a positioning hole is provided between the upper and lower end surfaces of the material clamping block, a guide groove is provided on one end surface of the material clamping block, and one end of the guide groove is connected to the positioning hole.
[0009] Preferably, a winding annular groove and a winding vertical groove are provided on the outer surface of the material clamping block, and the winding vertical groove is connected to the winding annular groove and remains perpendicular to the winding annular groove.
[0010] Preferably, the guide groove is perpendicular to the positioning hole, the other end of the guide groove is connected to the end of the winding vertical groove, the guide groove is perpendicular to the winding vertical groove, and the depth of the winding annular groove is twice the depth of the winding vertical groove.
[0011] Preferably, anti-slip strips are fixed to the inner sides of the two clamping plates, and a C-shaped groove is provided on the inner side of the anti-slip strips.
[0012] Preferably, fixing blocks are fixed to both end portions of the two clamping plates, and the fixing blocks at the ends of the two clamping plates are connected with each other by bolts.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] 1. Pass one end of the material through the positioning hole, and clamp the end in the guide groove and the winding vertical groove, and then wind the end of the material in the winding ring groove for two circles. The end of the material can be quickly connected to the material clamping block, and it is ensured that the material will not be separated from the material clamping block through this winding method, ensuring the smooth progress of the test;
[0015] 2. Install the two clamping plates on the outside of the material clamping block and cover the winding ring groove. When the ends of the two clamping plates are locked, the anti-slip strips on the inner wall of the clamping plates will press and reinforce the material wrapped in the winding ring groove to ensure that the material will not slide in the winding ring groove and ensure that the material will not separate from the material clamping block during the tensile test. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the protective shell of the utility model;
[0018] Figure 3 It is a structural schematic diagram of a material clamping block of the utility model;
[0019] Figure 4 It is a structural schematic diagram of the clamping plate of the utility model.
[0020] In the figure: 1. base; 2. protective shell; 3. door panel; 4. hydraulic rod; 5. fixing frame; 6. material clamping block; 7. winding ring groove; 8. winding vertical groove; 9. clamping plate; 10. anti-slip pressure strip; 11. positioning hole; 12. guide groove. DETAILED DESCRIPTION
[0021] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0022] like Figure 1 and Figure 2 As shown, it includes a base 1, a protective shell 2 is fixed on the top of the base 1, a door panel 3 is rotatably installed on the front surface of the protective shell 2, and two symmetrically arranged hydraulic rods 4 are installed inside the protective shell 2, one of the hydraulic rods 4 is fixed to the top surface of the protective shell 2, and the other hydraulic rod 4 is fixed to the upper end surface of the base 1, and the movable ends of the two hydraulic rods 4 are fixed with fixed frames 5, and a material clamping block 6 is fixed between the two ends of the fixed frame 5, and clamping plates 9 are movably installed on both sides of the material clamping block 6. The ends of the material to be tested are fixed on the material clamping block 6, and then the two hydraulic rods 4 are started, so that the two hydraulic rods 4 drive the two material clamping blocks 6 to move, and the two material clamping blocks 6 are away from each other, so that the material clamped by the two material clamping blocks 6 can be bidirectionally pulled up, and the material pulling test can be performed.
[0023] As the preferred technical solution of this embodiment, Figure 3 As shown, a positioning hole 11 is provided between the upper and lower end faces of the material clamping block 6, a guide groove 12 is provided on one end face of the material clamping block 6 and one end of the guide groove 12 is connected to the positioning hole 11, a winding ring groove 7 and a winding vertical groove 8 are provided on the outer surface of the material clamping block 6, the winding vertical groove 8 is connected to the winding ring groove 7 and remains perpendicular to the winding ring groove 7, the guide groove 12 remains perpendicular to the positioning hole 11, the other end of the guide groove 12 is connected to the end of the winding vertical groove 8, the guide groove 12 remains perpendicular to the winding vertical groove 8, the depth dimension of the winding ring groove 7 is twice the depth dimension of the winding vertical groove 8, one end of the material is passed through the positioning hole 11, and the end is clamped in the guide groove 12 and the winding vertical groove 8, and then the end of the material is wound twice in the winding ring groove 7, which can ensure that the material and the material clamping block 6 cannot be easily separated, and the test can be carried out smoothly.
[0024] As the preferred technical solution of this embodiment, Figure 4As shown, anti-skid strips 10 are fixed on the inner side of the two clamping plates 9, and a C-shaped groove is provided on the inner side of the anti-skid strips 10. Fixed blocks are fixed to both end portions of the two clamping plates 9. The fixed blocks at the ends of the two clamping plates 9 are connected by bolts. The two clamping plates 9 are installed on the outer side of the material clamping block 6 and cover the winding ring groove 7. When the ends of the two clamping plates 9 are locked, the anti-skid strips 10 on the inner wall of the clamping plate 9 will press the material wound in the winding ring groove 7 to ensure that the material will not slide in the winding ring groove 7 and ensure that the material will not separate from the material clamping block 6 during the tensile test.
[0025] Working principle: first, pass the end of the material through the middle of the positioning hole 11 on the material clamping block 6 and the end of the material to be fixed passes through the end connected to the positioning hole 11 and the guide groove 12, then fit the material in the guide groove 12 and the winding vertical groove 8, and then wind the remaining part of the material in the winding ring groove 7 for two turns, then install the two clamping plates 9 on the outside of the material clamping block 6 and cover the winding ring groove 7, when the ends of the two clamping plates 9 are locked, the anti-slip strip 10 on the inner wall of the clamping plate 9 will press and reinforce the material wound in the winding ring groove 7 to ensure that the material will not slide in the winding ring groove 7, finally close the door panel 3, turn on the power of the testing machine and start the testing machine, after the testing machine is started, the two hydraulic rods 4 are started at the same time to pull the fixed material in both directions, during the pulling process, the material will not loosen or slide with the material clamping block 6, and will not separate, until the material is broken under stress, and the strength of the material when it breaks is the ultimate strength of the material.
[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.
Claims
1. A hydraulic servo testing machine for material tensile testing, comprising a base (1), a protective shell (2) fixed to the top of the base (1), a door panel (3) rotatably mounted on the front surface of the protective shell (2), characterized in that: Two symmetrically arranged hydraulic rods (4) are installed inside the protective shell (2), one of the hydraulic rods (4) is fixed to the top surface of the protective shell (2), and the other hydraulic rod (4) is fixed to the upper end surface of the base (1), and the movable ends of the two hydraulic rods (4) are fixed with fixed frames (5), and a material clamping block (6) is fixed between the two ends of the fixed frame (5), and clamping plates (9) are movably installed on both sides of the material clamping block (6).
2. The hydraulic servo testing machine for material tensile testing according to claim 1, characterized in that: A positioning hole (11) is provided between the upper and lower end surfaces of the material clamping block (6); a guide groove (12) is provided on one end surface of the material clamping block (6), and one end of the guide groove (12) is connected to the positioning hole (11).
3. The hydraulic servo testing machine for material tensile testing according to claim 2, characterized in that: The outer surface of the material clamping block (6) is provided with a winding annular groove (7) and a winding vertical groove (8), and the winding vertical groove (8) is connected to the winding annular groove (7) and remains perpendicular to the winding annular groove (7).
4. The hydraulic servo testing machine for material tensile testing according to claim 3, characterized in that: The guide groove (12) is kept perpendicular to the positioning hole (11), the other end of the guide groove (12) is connected to the end of the winding vertical groove (8), the guide groove (12) is kept perpendicular to the winding vertical groove (8), and the depth dimension of the winding ring groove (7) is twice the depth dimension of the winding vertical groove (8).
5. The hydraulic servo testing machine for material tensile testing according to claim 1, characterized in that: Anti-skid strips (10) are fixed on the inner sides of the two clamping plates (9), and a C-shaped groove is provided on the inner side of the anti-skid strips (10).
6. The hydraulic servo testing machine for material tensile testing according to claim 5, characterized in that: Both end portions of the two clamping plates (9) are fixed with fixing blocks, and the fixing blocks at the ends of the two clamping plates (9) are connected with each other by bolts.