Automatic tensioning mechanism for steel cap tension test

Abstract

The utility model relates to the technical field of steel cap tension tests, and discloses an automatic tensioning mechanism for a steel cap tension test, which comprises a support column and an arranged tensioning component, a positioning groove is formed in the inner wall of the threaded cylinder, and a positioning block is mounted at the bottom of the threaded cylinder; and the bottom end of the threaded shaft is connected with a second driving motor, the surface of the threaded shaft is sleeved with a sliding plate, and a side connecting rod is connected between the threaded cylinder and the sliding plate. According to the automatic tensioning mechanism for the steel cap tension test, a steel cap is placed above the tensioning assembly, a second driving motor drives a threaded shaft to rotate in a supporting column, a sliding plate drives the top end part of a threaded cylinder to descend through a side connecting rod according to the rotating direction of the threaded shaft, and the multiple sets of threaded cylinders descend into the lower threaded cylinder layer by layer to be stored; the threaded cylinders with corresponding sizes are in threaded connection with the inner wall of the steel cap, and the lower end of the steel cap is tensioned and fixed, so that the accuracy of test data is ensured, and automatic operation is performed.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel cap tension test technical field, concretely is steel cap tension test automatic tensioning mechanism. BACKGROUND

[0002] Steel cap tension test is the mechanical property test for this specific material or product, mainly used for evaluating the performance of steel cap under tensile load. The main purpose of steel cap tension test is to determine the mechanical property parameters of steel cap in the tensile process, such as elastic modulus, yield strength, tensile strength, elongation at break, etc. These parameters are of great significance to understand the mechanical properties of steel cap and evaluate its safety and reliability in practical application. When performing steel cap tension test, the sample is first correctly installed on the clamping device of the tension testing machine, and the tensioning mechanism ensures that the sample can remain stable during the tensile process. The sample is subjected to tensile load according to the predetermined loading rate or load step. During the tensile process, the key data such as load and deformation are recorded in real time, and the deformation of the sample is observed until the sample breaks.

[0003] In the traditional steel cap tension test, the steel cap is clamped by filling the tensioning block, and then the tension test is performed on the steel cap by the tension testing machine. The clamping stability and efficiency of the steel cap are low due to the use of the tensioning block. To solve the above problems, some steel cap tension test automatic tensioning mechanisms are provided by setting a ball head and a tensioning part, and the ball head and the tensioning part are respectively inserted into the upper end and the lower end of the steel cap, so that the upper end and the lower end of the steel cap are tensioned and clamped, thereby ensuring the clamping stability and efficiency. However, this method has the problems of stress concentration and difficulty in operation due to the tensioning and clamping operation on both ends of the steel cap. Therefore, a steel cap tension test automatic tensioning mechanism is proposed. SUMMARY

[0004] In view of the deficiencies of the prior art, the steel cap tension test automatic tensioning mechanism is provided to solve the technical problems of affecting the accuracy of test data and increasing the difficulty of operation.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a steel cap tension test automatic tensioning mechanism, comprising:

[0006] a test bench, a support seat arranged on the upper surface of the test bench, and a support column added to the upper surface of the support seat, and a tensioning assembly installed on the top of the support column;

[0007] a threaded cylinder, which constitutes the tensioning assembly, and a plurality of positioning grooves uniformly arranged on the inner wall of the threaded cylinder, and a plurality of positioning blocks uniformly arranged on the bottom of the threaded cylinder, and the positioning blocks are slidably connected with the positioning grooves;

[0008] Threaded shaft, set up in the inner chamber of support column, and the bottom end of threaded shaft is coaxially connected with second driving motor, and the surface of threaded shaft is sleeved with sliding plate, and the threaded cylinder is connected with sliding plate between threaded cylinder and sliding plate. Through fixing test bench, placing steel cap above tensioning assembly, second driving motor drives threaded shaft to rotate in support column, sliding plate drives top part of threaded cylinder to descend through side connecting rod according to the direction of threaded shaft, and makes a plurality of threaded cylinders descend to the inside of lower threaded cylinder for storage, so that the threaded connection between threaded cylinder corresponding in size and inner wall of steel cap is realized, steel cap is connected with stretching mechanism, and the tension test of steel cap is carried out, which is a common step and mechanism in steel cap tension test, so it is not described too much, on the one hand, the lower end of steel cap is tensioned and fixed, which not only ensures the accuracy of test data, but also realizes automatic operation, thereby reducing the operation difficulty; on the other hand, threaded cylinder can be tensioned and fixed according to steel caps of different sizes within a certain range, thereby improving the applicability of the mechanism.

[0009] Preferably, the upper surface of the test bench is uniformly provided with connecting holes, and the lower surface of the test bench is uniformly provided with supporting legs. The test bench can be connected and supported through the connecting holes and the supporting legs.

[0010] Preferably, the upper surface of the support seat is rotatably connected with threaded side rods on both sides, and the surface of the threaded side rods is sleeved with sliding blocks, and the sliding blocks are connected with the support columns. The sliding blocks can drive the support columns and their connected structures to move up and down according to the direction of the threaded side rods, so as to adjust the use height of the mechanism.

[0011] Preferably, the bottom end of the threaded side rod is coaxially connected with a first driving motor, and the first driving motor is arranged on the lower surface of the test bench on both sides. The first driving motor drives the threaded side rod to rotate on the test bench and adjusts the direction of the threaded side rod.

[0012] Preferably, the number of threaded cylinders is six, and the threaded cylinders are designed as annular as a whole, and the radii of the threaded cylinders decrease from top to bottom. The upper threaded cylinder can descend to the inner chamber of the lower threaded cylinder.

[0013] Preferably, the side connecting rod is designed as Z-shaped as a whole, and the side connecting rod is connected with the inner wall of the corresponding threaded cylinder. The side connecting rod drives the upper threaded cylinder to move up and down layer by layer.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The automatic tensioning mechanism for steel cap tension test, by placing the steel cap above the tensioning assembly, the second driving motor drives the threaded shaft to rotate in the support column, the sliding plate drives the top part of the threaded cylinder to descend through the side connecting rod according to the rotation direction of the threaded shaft, and makes a plurality of threaded cylinders descend layer by layer into the inside of the lower threaded cylinder for storage, so that the corresponding threaded cylinder and the inner wall of the steel cap are threadedly connected, the lower end of the steel cap is tensioned and fixed, not only the test data accuracy is ensured, but also the operation difficulty is reduced, and the applicability of the mechanism is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a test bench sectional structure schematic view of the utility model;

[0018] Figure 3 It is a support column sectional structure schematic view of the utility model;

[0019] Figure 4 It is a tensioning assembly sectional structure schematic view of the utility model.

[0020] In the drawing: 1, test bench;2, support seat;3, support column;4, threaded side rod;5, sliding block;6, first driving motor;7, threaded shaft;8, second driving motor;9, sliding plate;10, side connecting rod;11, tensioning assembly;12, threaded cylinder;13, positioning groove;14, positioning block. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] The utility model provides a technical scheme, an automatic tensioning mechanism for steel cap tension test, comprising: Figure 1 Please refer to

[0023] Please refer to Figure 4The inner wall of the threaded cylinder 12 is uniformly provided with a positioning groove 13, and the bottom of the threaded cylinder 12 is uniformly provided with a positioning block 14 which is in sliding connection with the positioning groove 13.

[0024] Please refer to Figure 3 The threaded shaft 7 is arranged in the inner cavity of the support column 3, the bottom end of the threaded shaft 7 is coaxially connected with the second driving motor 8, the sliding plate 9 is sleeved on the surface of the threaded shaft 7, and the threaded cylinder 12 is connected with the sliding plate 9 through the side connecting rod 10. After the test bench 1 is fixed, the steel cap is placed above the tensioning assembly 11, the second driving motor 8 drives the threaded shaft 7 to rotate in the support column 3, the sliding plate 9 drives the top end of the threaded cylinder 12 to descend through the side connecting rod 10 according to the rotation direction of the threaded shaft 7, and a plurality of threaded cylinders 12 are sequentially lowered to the inside of the lower threaded cylinder 12 for storage, so that the threaded connection between the threaded cylinder 12 with the corresponding size and the inner wall of the steel cap is realized, the steel cap is connected with the stretching mechanism, and the tension test of the steel cap is carried out. This is a common step and mechanism in the steel cap tension test, so it is not described in detail. On the one hand, the lower end of the steel cap is tensioned and fixed, which not only ensures the accuracy of the test data, but also realizes automatic operation, thereby reducing the operation difficulty. On the other hand, the threaded cylinder 12 can be tensioned and fixed according to the size of the steel cap within a certain range, thereby improving the applicability of the mechanism.

[0025] Please refer to Figure 2 The upper surface of the test bench 1 is uniformly provided with connecting holes, and the lower surface of the test bench 1 is uniformly provided with support legs. The test bench 1 can be connected and supported through the connecting holes and the support legs. The upper surface of the support seat 2 is rotatably connected with the threaded side rod 4 on both sides, the sliding block 5 is sleeved on the surface of the threaded side rod 4, and the sliding block 5 is connected with the support column 3. The sliding block 5 can drive the support column 3 and the connected structure to move up and down according to the rotation direction of the threaded side rod 4, so as to adjust the use height of the mechanism. The bottom end of the threaded side rod 4 is coaxially connected with the first driving motor 6, and the first driving motor 6 is arranged on the lower surface of the test bench 1 on both sides. The first driving motor 6 drives the threaded side rod 4 to rotate on the test bench 1, and adjusts the rotation direction of the threaded side rod 4.

[0026] Please refer to Figure 4 The number of the threaded cylinders 12 is six, the threaded cylinders 12 are designed in a ring shape as a whole, and the radius of the threaded cylinders 12 decreases from top to bottom. The upper threaded cylinder 12 can be lowered to the inner cavity of the lower threaded cylinder 12. The side connecting rod 10 is designed in a Z shape as a whole, and is connected with the inner wall of the corresponding threaded cylinder 12. The side connecting rod 10 drives the upper threaded cylinder 12 to move up and down layer by layer.

[0027] The second driving motor 8 drives the threaded shaft 7 in the support column 3, the sliding plate 9 drives the top part of the threaded cylinder 12 to descend through the side connecting rod 10 according to the direction of the threaded shaft 7, and a plurality of threaded cylinders 12 are sequentially stored in the lower threaded cylinder 12, so that the corresponding threaded cylinder 12 is screwed with the inner wall of the steel cap. The first driving motor 6 drives the threaded side rod 4 on the test bench 1 to rotate and adjust the direction of the threaded side rod 4, and the sliding block 5 drives the support column 3 and the connected structure to ascend and descend according to the direction of the threaded side rod 4.

[0028] It should be noted that, in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic tensioning mechanism for steel cap tension testing, characterized in that, Include: Test bench (1), and the support seat (2) is arranged on the upper surface of the test bench (1), and the upper surface of the support seat (2) is additionally provided with a support column (3), and the top of the support column (3) is provided with a tensioning assembly (11); The threaded barrel (12) constitutes the tensioning assembly (11), and the inner wall of the threaded barrel (12) is uniformly provided with a positioning groove (13), and the bottom of the threaded barrel (12) is uniformly provided with a positioning block (14), and the positioning block (14) is in sliding connection with the positioning groove (13); The threaded shaft (7) is arranged in the inner cavity of the support column (3), and the bottom end of the threaded shaft (7) is coaxially connected with a second driving motor (8), and the surface of the threaded shaft (7) is sleeved with a sliding plate (9), and the threaded barrel (12) and the sliding plate (9) are connected with a side connecting rod (10).

2. The automatic tensioning mechanism for steel cap tension testing according to claim 1, characterized in that: The upper surface of the test bench (1) is uniformly provided with a connecting hole, and the lower surface of the test bench (1) is uniformly provided with a supporting leg.

3. The automatic tensioning mechanism for steel cap tension testing of claim 1, wherein: The upper surface of the support seat (2) is rotatably connected with a threaded side rod (4) on both sides, and the surface of the threaded side rod (4) is sleeved with a sliding block (5), and the sliding block (5) is connected with the support column (3).

4. The automatic tensioning mechanism for steel cap tension testing of claim 3, wherein: The bottom end of the threaded side rod (4) is coaxially connected with a first driving motor (6), and the first driving motor (6) is arranged on the lower surface of the test bench (1) on both sides.

5. The automatic tensioning mechanism for steel cap tension testing of claim 1, wherein: The number of the threaded barrel (12) is six groups, and the threaded barrel (12) is designed as a whole ring, and the radius of the threaded barrel (12) decreases from top to bottom.

6. The automatic take-up mechanism for steel cap tension testing of claim 1, wherein: The side connecting rod (10) is designed as a whole Z shape, and the side connecting rod (10) is connected with the inner wall of the corresponding threaded barrel (12).

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