Plate and strip stretching clamp device for thermal simulation testing machine

Abstract

The utility model provides a plate strip tensile fixture device for a thermal simulation testing machine, which relates to the technical field of hot working process of steel and iron materials and comprises two wedge-shaped fixture blocks, the two wedge-shaped fixture blocks are combined into a table body, the table body is arranged in a U-shaped groove of a U-shaped fixture of the thermal simulation testing machine, a plate strip sample is clamped between the two wedge-shaped fixture blocks, and the plate strip sample is clamped between the two wedge-shaped fixture blocks. The wedge-shaped clamping block internally comprises two oppositely-arranged clamping blocks, and gaskets are arranged on the opposite faces of the two clamping blocks. According to the utility model, the gasket is pressed by the clamping block, then the gasket is contacted with the surface of the plate-strip sample, and the gasket and the plate-strip sample are clamped by the clamping block through the fixing screw, so that the plate-strip sample is uniformly stressed, the stress concentration is avoided, and the positioning pin is connected with the clamping block through the thread to exert a pressure effect on the plate-strip sample, so that the clamping is firmer. And meanwhile, the positioning pins on the clamp can play a role in limiting the plate and strip sample with the two ends punched, and the clamping reliability of the sample is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot processing technology of steel materials, in particular to a plate strip stretching clamp device for a thermal simulation testing machine. Background Art

[0002] The thermal simulation test machine can be equipped with different components or units to complete specific physical simulation experiments, and the plate strip annealing system is one of them. When using this system to simulate the plate strip annealing process, a small constant tensile force is applied to both ends of the plate strip sample through the clamps at both ends of the sample to keep the plate strip sample straight due to the tensile force. This system is dedicated to the simulation of the continuous annealing process of the plate strip. In terms of the size of its fixture structure, the loading force on the sample is limited and it is not suitable for stretching the plate strip sample.

[0003] The existing patent is a plate and strip hot stretching fixture suitable for a thermal simulation test machine (patent number CN201820629336.8), through a pair of round rod-shaped fixtures, a platform for fixing the sample is processed at one end of the fixture, and the plate and strip sample is fixed in the designed fixture by bolts and nuts. The fixture fixes the plate and strip sample on the round rod-shaped fixture by bolts, not only the size of the plate and strip sample is limited, but also the plate and strip sample needs to be drilled to load the sample through the bolts, which is easy to cause stress concentration and lead to the failure of the experiment; a plate and strip hot stretching fixture on a thermal simulation machine (patent number CN201020227042.6) proposes to open a groove through the front end of the upper trapezoidal fixture body, and fix the jaws in the groove by screws, and the front end of the lower trapezoidal fixture body is also corresponding to the front end of the upper trapezoidal fixture body. The jaws are also fixed in the groove by screws, and the upper and lower trapezoidal fixture bodies are fixed by fixing bolts. The fixture also loads the plate and strip sample through bolts, and there is also a problem of stress concentration.

[0004] In order to avoid the above-mentioned deficiencies, it is also necessary to design and develop a fixture device for stretching plate and strip specimens. Utility Model Content

[0005] The utility model provides a plate strip stretching clamp device for a thermal simulation test machine, which solves the problem that stress concentration in the existing clamp leads to the failure of the experiment.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A plate and strip stretching clamp device for a thermal simulation testing machine includes two wedge-shaped clamping blocks, which are combined into a platform, and the platform is arranged in a U-shaped groove of a U-shaped clamp of the thermal simulation testing machine. The plate and strip specimen is clamped between the two wedge-shaped clamping blocks, and the wedge-shaped clamping blocks include two clamping blocks arranged opposite to each other, and gaskets are arranged on the opposite surfaces of the two clamping blocks.

[0008] Furthermore, the clamping block is formed by bending a flat plate 90 degrees along its axis, the cross-section of the clamping block is L-shaped, the plate surface of the clamping block parallel to the gasket is the first plate surface, and the plate surface of the clamping block perpendicular to the first plate surface is the second plate surface.

[0009] Furthermore, three through holes are evenly distributed on the central axis of the first plate surface parallel to the fold, and the middle through hole is a threaded hole.

[0010] Furthermore, the gasket is connected to the first plate surface, and the gasket and the first plate surface have the same size.

[0011] Furthermore, the gasket is provided with three through holes, and the shapes and positions of the through holes are consistent with the through holes provided on the first plate surface.

[0012] Furthermore, the positioning pin passes through the threaded hole of the clamping block and the through hole of the gasket in sequence; the bolt of the fixing screw passes through the through holes on both sides of the threaded hole and the through hole of the gasket in sequence, and the bolt is fixed to the clamping block by a nut.

[0013] Furthermore, the second plate surfaces of the two clamping blocks are located on the same plane and close to a bottom surface of the platform formed by the wedge-shaped clamping block.

[0014] The beneficial effects of the utility model are:

[0015] The utility model compresses the gasket through the clamping block, and then contacts the surface of the plate and strip sample through the gasket, and uses the fixing screw to clamp the gasket and the plate and strip sample through the clamping block, so that the plate and strip sample is evenly stressed and stress concentration is avoided. The positioning pin is connected to the clamping block through the thread to apply pressure to the plate and strip sample, making the clamping more secure. At the same time, the positioning pin on the clamp can also play a limiting role on the plate and strip sample with holes at both ends, thereby increasing the reliability of sample clamping.

[0016] The plate strip clamp of the utility model has a simple structure and is convenient to assemble and disassemble. By adopting the clamp to clamp the plate strip sample, the forces at both ends of the plate strip sample can be evenly applied, thereby improving the experimental efficiency of the stretching of the plate strip sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the first plate structure in the utility model.

[0020] Description of Figure Numbers:

[0021] 1. Wedge-shaped clamp; 2. Clamping block; 21. First plate surface; 22. Second plate surface; 23. Threaded hole; 3. Gasket; 4. Fixing screw; 5. Positioning pin; 6. Plate and strip specimen; 7. U-shaped clamp. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with 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 of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0029] The utility model provides a technical solution: a plate strip stretching fixture device for a thermal simulation testing machine, such as Figure 1-2 As shown, it includes a wedge-shaped clamping block 1, a clamping block 2, a gasket 3, a fixing screw 4, and a positioning pin 5; two of the wedge-shaped clamping blocks 1 are combined into a platform, and the platform is arranged in a U-shaped groove of a U-shaped clamp 7 of a thermal simulation test machine, and a plate strip specimen 6 is clamped between the two wedge-shaped clamping blocks 1, and the wedge-shaped clamping block 1 includes two clamping blocks 2 arranged opposite to each other, and gaskets 3 are arranged on the opposite surfaces of the two clamping blocks 2;

[0030] Two clamping blocks 2 form a group. The clamping block 2 is formed by bending a flat plate 90 degrees along its central axis, that is, one of its cross sections is "L"-shaped. The flat plate is divided into two plate surfaces along the fold. The plate surface of the clamping block 2 parallel to the gasket 3 is the first plate surface 21, and the plate surface perpendicular to the first plate surface 21 is the second plate surface 22.

[0031] The first plate surface 21 has three through holes evenly distributed on the central axis parallel to the fold, and the middle hole is a threaded hole 23; the gasket 3 has the same size and shape as the first plate surface 21 of the clamping block 2, and the gasket 3 has three through holes, and the positions and shapes of the through holes are also consistent with the through holes on one of the plate surfaces of the clamping block 2;

[0032] The positioning pin 5 is connected to the clamping block 2 by a thread, that is, the positioning pin 5 can be screwed into a threaded hole 23 on one of the upper plate surfaces of the clamping block 2 to be fixed;

[0033] The fixing screw 4 is composed of a bolt and a nut. The bolt can pass through two through holes on one of the surfaces of the clamping block 2, and the bolt can be fixed to the clamping block 2 through the nut.

[0034] The second plate surfaces 22 of the two clamping blocks 2 form a plate surface, and the first plate surfaces 21 with through holes of the two clamping blocks 2 face each other and clamp one end of the plate strip sample 6, so that the central axis of the plate strip sample 6 passes through the center of the middle threaded through hole on the first plate surface 21 of the clamping block 2, and the plate strip sample 6 is located between the other two through holes on the first plate surface 21 of the clamping block 2. A gasket 3 is placed between the plate strip sample 6 and the clamping block 2. The two clamping blocks 2 are combined together by fixing screws 4, and the plate strip sample 6 and the gasket 3 can be clamped between the two clamping blocks 2. The plate surface formed by the second plate surfaces 22 of the two clamping blocks 2 is close to a bottom surface of the platform formed by the set of wedge-shaped blocks 1. The other end of the plate strip sample 6 is also clamped by the same clamping device.

[0035] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A strip tensile fixture device for a thermal simulation testing machine, characterized in that: The invention comprises two wedge-shaped clamping blocks (1), the two wedge-shaped clamping blocks (1) are combined into a platform, the platform is arranged in a U-shaped groove of a U-shaped clamp (7) of a thermal simulation test machine, a plate strip specimen (6) is clamped between the two wedge-shaped clamping blocks (1), the wedge-shaped clamping blocks (1) comprise two clamping blocks (2) arranged opposite to each other, and gaskets (3) are arranged on the opposite surfaces of the two clamping blocks (2).

2. The plate strip tensile fixture device for a thermal simulation testing machine according to claim 1, characterized in that: The clamping block (2) is formed by bending a flat plate 90 degrees along its central axis, the cross section of the clamping block (2) is L-shaped, the plate surface of the clamping block (2) parallel to the gasket (3) is a first plate surface (21), and the plate surface of the clamping block (2) perpendicular to the first plate surface (21) is a second plate surface (22).

3. The plate strip tensile fixture device for a thermal simulation testing machine according to claim 2, characterized in that: Three through holes are evenly distributed on the central axis of the first plate surface (21) parallel to the fold, and the middle through hole is a threaded hole (23).

4. The plate strip tensile fixture device for a thermal simulation testing machine according to claim 1, characterized in that: The gasket (3) is connected to the first plate surface (21), and the gasket (3) and the first plate surface (21) have the same size.

5. The plate strip tensile fixture device for a thermal simulation testing machine according to claim 1, characterized in that: The gasket (3) is provided with three through holes, and the shapes and positions of the through holes are consistent with the through holes provided on the first plate surface (21).

6. The plate strip tensile fixture device for a thermal simulation testing machine according to claim 3, characterized in that: The positioning pin (5) passes through the threaded hole (23) of the clamping block (2) and the through hole of the gasket (3) in sequence; the bolt of the fixing screw (4) passes through the through holes on both sides of the threaded hole (23) and the through hole of the gasket (3) in sequence, and the bolt is fixed to the clamping block (2) by a nut.

7. The plate strip tensile fixture device for a thermal simulation testing machine according to claim 2, characterized in that: The second plate surfaces (22) of the two clamping blocks (2) are located on the same plane and are close to a bottom surface of a platform formed by the wedge-shaped clamping block (1).

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