In-situ EBSD tensile fixture
By designing an in-situ EBSD stretching fixture and using the conductivity of metal to automatically detect its deformation ability, the problem of difficulty in detecting metal deformation ability in traditional methods is solved, and high-precision and practical detection results are achieved.
Patent Information
- Application Number
- CN202420681715.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-03
AI Technical Summary
When conducting deformation ability tests on different materials, sensors are usually required to obtain numerical values. During metal testing, due to the conductivity of the metal, it is difficult to detect the deformation ability of the metal through traditional methods.
An in-situ EBSD stretching fixture is designed. By setting up a conductive plate and a limit rod in the detection component, the conductivity of the metal is used to make the current flow during the stretching process until the metal stops flowing when it breaks, thereby automatically stopping the test. And record the deformation distance through the scale.
It is realized that accurate values can be obtained without sensors in the detection of metal deformation ability, which improves the practicality and accuracy of detection.
Smart Images
Figure CN222379463U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of in-situ EBSD stretching, in particular to an in-situ EBSD stretching fixture. Background Art
[0002] The main feature of EBSD is that it can perform diffraction with sub-micron spatial resolution while retaining the conventional characteristics of scanning electron microscopes. With the help of EBSD analysis technology, the evolution of microstructure and crystal structure under in-situ tensile load can be studied. Material mechanical property testing methods include stretching, compression and bending, among which the most widely used is the tensile test method.
[0003] When testing the deformation capacity of different materials, sensors are usually required to obtain values. When testing metals, since metals are conductive, the conductive characteristics of metals can be used to test the deformation capacity of metals, thereby replacing sensors for detection. For this purpose, we propose an in-situ EBSD tensile fixture. Utility Model Content
[0004] The purpose of the utility model is to provide an in-situ EBSD stretching fixture to solve the problem proposed in the above background technology that when testing the deformation capacity of different materials, sensors are usually required to obtain values, while when testing metals, since metals are conductive, the conductive characteristics of metals can be used to test the deformation capacity of metals, thereby replacing sensors for detection. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an in-situ EBSD stretching fixture, comprising a frame, wherein a detection component is arranged inside the frame; the detection component comprises a base, wherein the base is fixedly connected to the inner wall of the bottom of the frame, an inner cavity is opened inside the bottom of the frame, a conductive plate is fixedly connected to the bottom of the base, a limiting rod is fixedly connected to the inner wall of the bottom of the frame, a socket is fixedly sleeved in the base, and two clamping components are arranged inside the frame, and by installing the conductive plate and other components in the detection component, current flows in the metal during the stretching test, and when the metal material breaks during the stretching, the current cannot flow, thereby stopping the deformation capacity test, and a scale is provided on the surface of the limiting rod, so that the stretching distance after deformation can be obtained, thereby obtaining the value of the metal material after the deformation capacity test, which is conducive to improving the practicality of the device.
[0005] Further preferably, the clamping assembly includes two threaded rods, one of which is movably connected to the inside of the socket via a bearing, a fixing ring is fixedly sleeved on the threaded rod, a hole is opened on the side surface of the fixing ring and the hole completely penetrates the threaded rod and the fixing ring, a transmission pin is fixedly connected to the inside of the hole and penetrates the threaded rod, and one of the threaded rods is movably connected to two clamp shells via threads.
[0006] Further preferably, one of the side surfaces of the clamp shells is fixedly connected to a limiting ring 1, and the limiting ring 1 is slidably sleeved on the outer wall of the limiting rod, and a movable shaft is fixedly connected to the arc-shaped inner wall of the clamp shell, and the movable shaft is hingedly fixedly connected to two clamping plates, and by installing the limiting ring 1, the clamp shell can remain stable when clamping metal materials, and when pulling the metal material, the two clamp shells can be kept in the same vertical line, thereby avoiding the clamp shell from tilting when pulling the metal material, resulting in uneven force on the metal material and affecting the deformation capacity detection data.
[0007] Further preferably, one of the side surfaces of the clamp shells is fixedly connected to a limit ring 2, and the limit ring 2 is slidably sleeved on the outer wall of the limit rod, a transmission groove is opened on the opposite side of the two clamps, and the top of one of the threaded rods is fixedly connected to a transmission plate, and the limit ring 1 and the limit ring 2 in the clamping assembly are coordinated to obtain the stretching distance after deformation after the metal deformation capacity is tested, and the two clamps can be limited to be on the same vertical line when applying tension, so as to avoid the two clamps not applying vertical force when applying tension to the metal material, which may cause uneven force on the metal material and large errors in the data after detection, thereby affecting the subsequent work process and helping to improve the accuracy of the device.
[0008] Further preferably, a transmission assembly is disposed inside the frame, and the transmission assembly includes an electric rod, and the electric rod is fixedly connected to the top of the inner wall.
[0009] Further preferably, the output end at the bottom of the electric rod is fixedly connected to a mounting block, and one of the threaded rods is movably connected to the inside of the mounting block through a bearing. The mounting block makes it more convenient to replace the fixture and the operation is simple.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] In the utility model, by installing the conductive plate and other components in the detection assembly, current flows in the metal during the stretching test. When the metal material is stretched and broken, the current cannot flow, thereby stopping the test of the deformation capacity. In addition, the scale on the surface of the limit rod can obtain the stretching distance after deformation, thereby obtaining the value of the metal material after the deformation capacity test, which is conducive to improving the practicality of the device.
[0012] In the utility model, by installing the limit ring 1 and the limit ring 2 in the clamping assembly, the stretching distance after deformation can be obtained after the metal deformation capacity is tested, and the two clamps can be limited to be on the same vertical line when applying tension, so as to avoid the two clamps not applying vertical force when applying tension to the metal material, which may cause uneven force on the metal material and large errors in the data after the test, thereby affecting the subsequent work process, which is conducive to improving the accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the three-dimensional partial structure of the detection component of the utility model;
[0015] Figure 3 The utility model is a schematic diagram of the three-dimensional local structure Figure 1 ;
[0016] Figure 4 For this utility model Figure 3 A is an enlarged structural diagram;
[0017] Figure 5 The utility model is a schematic diagram of the three-dimensional local structure Figure 2 ;
[0018] Figure 6 For this utility model Figure 5 The enlarged structural diagram at B in FIG.
[0019] Figure 7 It is a three-dimensional partial enlarged structural schematic diagram of the clamping assembly of the utility model.
[0020] In the figure: 1. frame; 2. detection component; 201. base; 202. inner cavity; 203. conductive plate; 204. limit rod; 205. socket; 206. clamping component; 2061. threaded rod; 2062. fixing ring; 2063. hole; 2064. transmission pin; 2065. clamp shell; 2066. limit ring one; 2067. movable shaft; 2068. clamp plate; 2069. limit ring two; 20610. transmission groove; 20611. transmission plate; 3. transmission component; 301. electric rod; 302. mounting block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-Figure 7The utility model provides a technical solution: an in-situ EBSD tensile fixture, comprising a frame 1, wherein a detection assembly 2 is arranged inside the frame 1; the detection assembly 2 comprises a base 201, the base 201 is fixedly connected to the inner wall at the bottom of the frame 1, an inner cavity 202 is provided inside the bottom of the frame 1, a conductive plate 203 is fixedly connected to the bottom of the base 201, a limit rod 204 is fixedly connected to the inner wall at the bottom of the frame 1, a socket 205 is fixedly sleeved inside the base 201, two clamping assemblies 206 are arranged inside the frame 1, the clamping assemblies 206 comprise two threaded rods 2061, one of the threaded rods 2061 is movably connected to the inside of the socket 205 through a bearing, and a fixing ring 2062 is fixedly sleeved on the threaded rod 2061, A hole 2063 is provided on the side surface of the fixing ring 2062, and the hole 2063 completely penetrates the threaded rod 2061 and the fixing ring 2062. A driving pin 2064 is fixedly connected to the inside of the hole 2063 and penetrates the threaded rod 2061. One of the threaded rods 2061 is movably connected to two clamp shells 2065 through threads. A limit ring 1 2066 is fixedly connected to the side surface of one of the clamp shells 2065, and the limit ring 1 2066 is slidably sleeved on the outer wall of the limit rod 204. A movable shaft 2067 is fixedly connected to the arc-shaped inner wall of the clamp shell 2065. The movable shaft 2067 is fixedly connected to two clamp plates 2068 through a hinge. A limit ring 2069 is fixedly connected to the side surface of one of the clamp shells 2065, and the limit ring 2069 is fixedly connected to the side surface of the clamp shell 2065. 069 is slidably sleeved on the outer wall of the limit rod 204, and a transmission groove 20610 is opened on the opposite side of the two clamps 2068, and a transmission plate 20611 is fixedly connected to the top of one of the threaded rods 2061. When the deformation capacity of the metal material is tested, the transmission pin 2064 is first pushed manually, and the movement of the transmission pin 2064 causes the threaded rod 2061 to rotate, and the rotation of the threaded rod 2061 causes the transmission plate 20611 to move outward from the clamp shell 2065. After the movement of the transmission plate 20611, the clamp 2068 can be opened outward through the movable shaft 2067, and then the metal material is placed therein, and then the threaded rod 2061 is manually rotated in the opposite direction to move the transmission plate 20611 into the clamp shell 2065, and then The clamp 2068 can be closed to firmly clamp the metal material. The staff records the positions of the limit ring 2069 and the limit ring 1 2066 on the limit rod 204. When the deformation capacity of the metal material is tested, an electric current is generated through the conductive plate 203. When the metal material is connected to the clamp, the current flows through the metal material. When the metal material is pulled apart, the current cannot flow, and the electric rod 301 stops operating immediately. The staff observes the positions of the limit ring 1 2066 and the limit ring 2069 on the limit rod 204, uses the scale on the surface of the limit rod 204, and compares it with the previous position data to obtain the stretching distance after deformation, and then uses EBSD observation technology to obtain the value after the metal material deformation capacity test.
[0023] In this embodiment, Figure 3 and Figure 5 As shown, a transmission assembly 3 is arranged inside the frame 1, and the transmission assembly 3 includes an electric rod 301, and the electric rod 301 is fixedly connected to the top of the inner wall, and the output end at the bottom of the electric rod 301 is fixedly connected to the mounting block 302, and one of the threaded rods 2061 is movably connected to the inside of the mounting block 302 through a bearing, and then the electric rod 301 is started. The start of the electric rod 301 causes the upper clamp to move upward, and the lower clamp remains stationary, thereby applying tension to the metal material.
[0024] The use method and advantages of the utility model: When the in-situ EBSD tensile fixture is used, the working process is as follows:
[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, when the deformation capacity of the metal material is tested, the transmission pin 2064 is first pushed manually, and the movement of the transmission pin 2064 causes the threaded rod 2061 to rotate, and the rotation of the threaded rod 2061 causes the transmission plate 20611 to move outward from the clamp shell 2065. After the movement of the transmission plate 20611, the clamp plate 2068 can be opened outward through the movable shaft 2067, and then the metal material is placed therein, and then the threaded rod 2061 is manually rotated in the opposite direction to move the transmission plate 20611 into the clamp shell 2065, and then the clamp plate 2068 can be closed to firmly clamp the metal material, and the staff records the positions of the limit ring 2069 and the limit ring 1 2066 on the limit rod 204. The electric rod 301 is then started. The start of the electric rod 301 causes the upper clamp to move upward, while the lower clamp remains stationary, and a pulling force is applied to the metal material. When the deformation capacity of the metal material is tested, a current is generated through the conductive plate 203. When the metal material is connected to the clamp, the current flows through the metal material. When the metal material is broken, the current cannot flow, and the electric rod 301 stops operating immediately. The staff observes the positions of the limit ring 1 2066 and the limit ring 2 2069 on the limit rod 204, and compares the scale on the surface of the limit rod 204 with the previous position data to obtain the stretched distance after deformation. After the EBSD observation technology, the value after the deformation capacity test of the metal material is obtained.
[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An in-situ EBSD tensile fixture, comprising a frame (1), characterized in that: A detection component (2) is arranged inside the frame (1); The detection component (2) comprises a base (201), the base (201) is fixedly connected to the inner wall of the bottom of the frame (1), an inner cavity (202) is provided inside the bottom of the frame (1), a conductive plate (203) is fixedly connected to the bottom of the base (201), a limiting rod (204) is fixedly connected to the inner wall of the bottom of the frame (1), a socket (205) is fixedly sleeved inside the base (201), and two clamping components (206) are provided inside the frame (1).
2. An in-situ EBSD tensile fixture according to claim 1, characterized in that: The clamping assembly (206) comprises two threaded rods (2061), one of which is movably connected to the inside of the socket (205) via a bearing, a fixing ring (2062) is fixedly sleeved on the threaded rod (2061), a hole (2063) is opened on the side surface of the fixing ring (2062), and the hole (2063) completely penetrates the threaded rod (2061) and the fixing ring (2062), a driving pin (2064) is fixedly connected inside the hole (2063) and penetrates the threaded rod (2061), and one of the threaded rods (2061) is movably connected to two clamp shells (2065) via threads.
3. An in-situ EBSD tensile fixture according to claim 2, characterized in that: A side surface of one of the clamp shells (2065) is fixedly connected to a limiting ring (2066), and the limiting ring (2066) is slidably sleeved on the outer wall of the limiting rod (204); a movable shaft (2067) is fixedly connected to the arc-shaped inner wall of the clamp shell (2065); and the movable shaft (2067) is fixedly connected to two clamp plates (2068) by hinged connection.
4. An in-situ EBSD tensile fixture according to claim 3, characterized in that: The side surface of one of the clamp shells (2065) is fixedly connected to a limiting ring 2 (2069), and the limiting ring 2 (2069) is slidably sleeved on the outer wall of the limiting rod (204), and a transmission groove (20610) is opened on the opposite side of the two clamp plates (2068), and the top of one of the threaded rods (2061) is fixedly connected to a transmission plate (20611).
5. An in-situ EBSD tensile fixture according to claim 4, characterized in that: A transmission assembly (3) is arranged inside the frame (1), and the transmission assembly (3) comprises an electric rod (301), and the electric rod (301) is fixedly connected to the top of the inner wall.
6. An in-situ EBSD tensile fixture according to claim 5, characterized in that: The output end at the bottom of the electric rod (301) is fixedly connected to a mounting block (302), and one of the threaded rods (2061) is movably connected to the inside of the mounting block (302) via a bearing.