Plane strain anvil device for thermal simulation testing machine

Abstract

The utility model provides a plane strain anvil head device for a thermal simulation testing machine, which comprises a base, the base is a prismatic table body, the side surface of the prismatic table body is matched with a U-shaped clamp of the thermal simulation testing machine, four corners of the upper surface of the prismatic table body are respectively provided with a threaded blind hole, the lower surface of the prismatic table body is connected with the upper surface of a top column, and the top column is provided with a through hole. The upper surface of the prismatic table body is connected with an annular clamping sleeve, and the annular clamping sleeve is connected with an anvil. The annular clamping sleeve is a regular prism, a threaded through hole is formed in the bottom face of the annular clamping sleeve, and a cavity is formed in the center of the annular clamping sleeve. A clamping block is arranged in the cavity of the prismatic table body, and the shape of the clamping block is matched with that of one side of the cavity of the prismatic table body. According to the anvil head device, under the condition that the compression devices do not need to be replaced on a thermal simulation testing machine, the plane strain technology is achieved, the anvils of the anvil head device are fixed, alignment of the two anvils can be achieved, alignment operation of the anvils is simplified, and the anvil head device is simple in structure and rapid to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal simulation test instruments, in particular to a plane strain anvil head device for a thermal simulation test machine. Background Art

[0002] The thermal simulation test machine is a physical simulation device that reproduces the heating of materials during preparation or hot working, or the simultaneous heating and stressing process. In order to simulate the process of materials under different hot working conditions, thermal simulation test machines of different models, units and systems have appeared one after another to expand their simulation experimental functions. Among them, the universal unit equipped with the Gleeble series thermal simulation test machine can complete most of the hot working process simulations. However, if the plane strain technology is to be realized, it is also necessary to equip it with a hydraulic wedge unit or a multi-axis deformation unit. The specimen of the plane strain experiment is in the form of a small slab between two wider flat plate pressure heads. The specimen is heated as a resistor and compressed after reaching the temperature. The hot working process of the specimen in this process is similar to that of plate and strip rolling, and it can be applied to the simulation of the production process of plate and strip steel. However, the disadvantage is that the experiments conducted using hydraulic wedge units or multi-axis deformation units are relatively simple.

[0003] With the continuous advancement of technology, this series of testing machines can be equipped with an induction heating system to enable the testing machine to have an induction heating function. However, in order to carry out the above-mentioned plane strain technology under the induction heating system, a corresponding compression system device must be equipped on the general unit. When applying this system device, there is also the problem of a single experimental project. Therefore, when conducting plane strain simulation experiments and other different types of experiments, the system must be replaced, which will not only accelerate the wear of the equipment and increase labor intensity, but also increase the consumption of spare parts and increase the difficulty of equipment maintenance.

[0004] The patent number CN201420331561.5, "A fixture device for compression test of a resistance-type thermal simulation testing machine", mainly solves the technical problem of slow controllable cooling speed when the resistance-type thermal simulation testing machine conducts compression deformation test of cylindrical specimens in the prior art, and does not propose effective measures for realizing plane strain technology. Although the patent number "CN201721457613.3" "A small plane strain anvil device" has better solved the plane strain technology problem of the resistance heating method through the design of the device structure, its structure requires that the device components are tightly connected to ensure smooth current conduction, and it can be seen from the mode of action between the various parts of the device that the centering adjustment of the anvil is relatively difficult.

[0005] In summary, according to the characteristics of the Gleeble series thermal simulation testing machine, a set of plane strain anvil devices needs to be developed to avoid frequent replacement of compression system devices, improve work efficiency and reduce experimental costs. Utility Model Content

[0006] The utility model provides a plane strain anvil head device for a thermal simulation test machine, which solves the problem that the centering adjustment of the anvil head of the existing plane strain anvil head device is difficult.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A plane strain anvil head device for a thermal simulation testing machine includes a base, the base is a prism body, the side of the prism body is adapted to the U-shaped clamp of the thermal simulation testing machine, a threaded blind hole is arranged at each of the four corners of the upper surface of the prism body, the lower surface of the prism body is connected to the upper surface of the top column, the upper surface of the prism body is connected to an annular sleeve, and the annular sleeve is connected to an anvil.

[0009] Furthermore, the lower surface of the prism body is threadedly connected to the upper surface of the top column.

[0010] Furthermore, the top column is a cylinder.

[0011] Furthermore, the annular ferrule is a regular prism, a threaded through hole is formed on the bottom surface of the annular ferrule, and a cavity is formed in the center of the annular ferrule.

[0012] Furthermore, the cavity opened in the center of the annular ferrule is a prism-shaped cavity.

[0013] Furthermore, a clamping block is arranged in the cavity of the prism body, and the shape of the clamping block is adapted to one side of the cavity of the prism body.

[0014] Furthermore, the clamping block is located at a position several millimeters from the center of the bottom surface of the prism body, and divides the prism body into two parts along a direction parallel to the prism height line and a bottom edge, and the prism with a smaller volume is the clamping block.

[0015] Furthermore, a gasket is provided between the annular sleeve and the anvil.

[0016] The beneficial effects of the utility model are:

[0017] The plane strain technology is realized without replacing the compression devices on the thermal simulation test machine. The anvil of the anvil head device is fixed, so the alignment of the two anvils can be realized, which simplifies the anvil alignment operation. The anvil head device has a simple structure and is quick to load and unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a side view of the utility model.

[0020] Figure 2 This is the front view of the base of the utility model.

[0021] Figure 3 It is a side view of the base of the utility model.

[0022] Figure 4 This is the front view of the annular ferrule of the utility model.

[0023] Figure 5 It is a side view of the annular ferrule of the utility model.

[0024] Figure 6 This is the front view of the card block of the utility model.

[0025] Figure 7 It is a side view of the card block of the utility model.

[0026] Description of Figure Numbers:

[0027] 1. Base; 2. Top column; 3. Gasket; 4. Ring ferrule; 5. Block; 6. Fixing screw; 7. Anvil; 8. U-shaped fixture of thermal simulation test machine. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The utility model provides a technical solution: a plane strain anvil device for a thermal simulation test machine, such as Figure 1As shown, it includes a base 1, which is a prism body. The side of the prism body is adapted to the U-shaped fixture 8 of the thermal simulation test machine. A threaded blind hole is provided at each of the four corners of the upper surface of the prism body. A fixing screw 6 is provided in the threaded blind hole. The lower surface of the prism body is threadedly connected to the upper surface of the top column 2. The top column 2 is a cylinder. The upper surface of the prism body is connected to the annular ferrule 4, and the annular ferrule 4 is connected to the anvil 7. The annular ferrule 4 is a regular prism body. The annular ferrule 4 has a threaded through hole on the bottom surface, and a cavity is provided in the center of the annular ferrule 4. The cavity provided in the center of the annular ferrule 4 is the cavity of the prism body. A card block 5 is provided in the cavity of the prism body, and the shape of the card block 5 is adapted to one side of the cavity of the prism body. The card block 5 is located at a certain millimeter from the center of the bottom surface of the prism body, and divides the prism body into two along a direction parallel to the prism height line and a bottom edge. The smaller prism is the card block. A gasket 3 is provided between the annular sleeve 4 and the anvil 7 .

[0034] Example

[0035] The base 1 is in the shape of a prism, and the side of the prism body is adapted to the U-shaped fixture of the thermal simulation test machine. The upper bottom surface (the bottom surface with a smaller area) of the table body has a side length of 50 mm, and threaded holes with a diameter of 8 mm are distributed near the four corners. The threaded holes do not penetrate the base, and the center of the threaded hole is 9 mm away from both sides of the upper bottom surface of the table body, and the hole depth is 5 mm; the fixing screw is in a "T" shape, which cooperates with the threaded hole on the annular ferrule, and the annular ferrule can be fixed to the base through a threaded connection by the fixing screw;

[0036] The top column 2 is a cylinder with a diameter of 26 mm and a height of 30 mm, which is connected to the base 1 by threads and fixed to the center of the base 1, and placed together in the U-shaped fixture of the thermal simulation test machine. By rotating the top column 2, the base 1 can be securely clamped into the U-shaped fixture of the thermal simulation test machine;

[0037] The annular ferrule 4 is a regular prism with a bottom side length of 50 mm and a height of 10 mm, and a threaded through hole with a diameter of 8 mm is opened on the bottom surface, and the center of the hole is 9 mm away from both sides of the bottom surface. The cavity in the center of the annular ferrule 4 is a prism body cavity with upper and lower bottom side lengths of 18 and 22 mm and a height of 10 mm;

[0038] The clamping block 5 is a part of the prism body, the upper and lower bottom sides of the prism are 18 mm and 22 mm long, and the height is 12 mm. At a distance of 5 mm from the center of the bottom of the prism, the prism is divided into two parts along a direction parallel to the prism height line and a bottom edge, and the smaller part is taken, which is the clamping block 5; the clamping block is a part of the prism body, and the prism is adapted to the cavity in the annular ferrule, and the height is slightly higher than the annular ferrule;

[0039] The card block can be obtained by cutting the prism body, which is obtained by cutting the prism body at a distance d from the center of the upper bottom surface along a direction parallel to the axis of the prism body and a bottom edge, and taking a smaller part as the card block. The card blocks are used in pairs;

[0040] The anvil is prismatic, with a height of h, and a rectangular upper and lower bottom surface with a width of 2d, and the rectangle is inscribed in the circular surface of the upper bottom surface of the truncated cone cavity on the annular sleeve; the shape of the gasket is consistent with the bottom surface of the anvil, and the thickness can be selected in different sizes according to needs.

[0041] The anvil 7 is prismatic, with the length, width and height being 25, 10 and 36 mm respectively; the gasket 3 is 25 and 10 mm long and wide respectively, and the thickness can be 2-6 mm;

[0042] Place the gasket 3 on the bottom surface of the anvil 7, and place the gasket 3 and the anvil 7 between a pair of the blocks 5, and then insert the pair of blocks 5 into the annular sleeve 4, and fix the anvil 7, the gasket 3, a group of blocks 5 and the annular sleeve 4 on the base 1 by fixing screws 6 until the anvil 7, the gasket 3 and the blocks 5 are tightly embraced by the annular sleeve 4, and then screw the top column 2 onto the base 1.

[0043] The plane strain anvil device for thermal simulation testing machine is used in pairs. You can choose gaskets of different thicknesses and place them at one end of the anvil to adjust the exposed length of the anvil. During the adjustment process, there is no need to adjust the position of the anvil in other directions. Due to the structural characteristics of the block and the annular sleeve used to fix the anvil, when the annular sleeve is fixed to the base with a fixing screw, the position of the anvil is naturally fixed. Finally, install a pair of assembled anvil devices on the thermal simulation testing machine and start the experiment.

[0044] Place the gasket on the bottom surface of the anvil, and place the gasket and the anvil between a pair of the blocks, then insert the group of blocks into the annular sleeve, and fix the anvil, gasket, a group of blocks and the annular sleeve on the base by the fixing screws until the anvil, gasket and block are tightly held by the annular sleeve.

[0045] The utility model is characterized in that the group of clamping blocks, the annular clamping sleeve and the base together exert force on the anvil, so that the position of the anvil is fixed and located at the center of the annular clamping sleeve cavity. Since the anvil head device is used in pairs, a pair of anvil heads are required to be aligned during use. Therefore, as long as the anvil is fixed, the alignment of the two anvils can be achieved without adjusting the position of the anvil. When unloading, the fixing screws are loosened, the anvil can be separated from the clamping block, and gaskets of different thicknesses are placed as needed to adjust the position of the anvil relative to the annular clamping sleeve. The anvil head device has a simple structure and is quick to load and unload.

[0046] 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 plane strain anvil device for a thermal simulation test machine, characterized in that: The invention comprises a base (1), wherein the base (1) is a prism body, the side surface of the prism body is adapted to a U-shaped fixture (8) of a thermal simulation test machine, a threaded blind hole is arranged at each of the four corners of the upper surface of the prism body, a fixing screw (6) is arranged in the threaded blind hole, the lower surface of the prism body is connected to the upper surface of a top column (2), the upper surface of the prism body is connected to an annular sleeve (4), and the annular sleeve (4) is connected to an anvil (7).

2. The plane strain anvil device for a thermal simulation test machine according to claim 1, characterized in that: The lower surface of the prism body is threadedly connected to the upper surface of the top column (2).

3. The plane strain anvil device for a thermal simulation test machine according to claim 1, characterized in that: The top column (2) is a cylinder.

4. The plane strain anvil device for a thermal simulation test machine according to claim 1, characterized in that: The annular clamping sleeve (4) is a regular prism, a threaded through hole is provided on the bottom surface of the annular clamping sleeve (4), and a cavity is provided at the center of the annular clamping sleeve (4).

5. The plane strain anvil device for a thermal simulation test machine according to claim 4, characterized in that: The cavity opened in the center of the annular ferrule (4) is a prism-shaped cavity.

6. The plane strain anvil device for a thermal simulation test machine according to claim 5, characterized in that: A clamping block (5) is arranged in the cavity of the prism body, and the shape of the clamping block (5) is adapted to one side of the cavity of the prism body.

7. The plane strain anvil device for a thermal simulation test machine according to claim 6, characterized in that: The clamping block (5) is located at a position several millimeters from the center of the bottom surface of the prism body, and divides the prism body into two parts along a direction parallel to the prism height line and a bottom edge, and the prism with a smaller volume is the clamping block.

8. The plane strain anvil device for a thermal simulation test machine according to claim 1, characterized in that: A gasket (3) is provided between the annular sleeve (4) and the anvil (7).

Images