In-situ mechanical detection rack, device and method for synchrotron radiation light source

Abstract

The invention provides an in-situ mechanical detection rack, device and method for a synchrotron radiation light source. The in-situ mechanical detection rack comprises an output power part, a transmission part, a sensing part, a heat dissipation part and a supporting part. The in-situ mechanical detection device comprises an in-situ mechanical detection rack, a controller and terminal control software. The ball screw which is integrally ground and formed in a left-and-right rotating mode has extremely high collimation degree and precision, rigid fixation is applied to the two ends of each stage of worm and gear transmission shaft, and the situation that the screw connected with a worm gear deforms due to shearing force provided by a worm is avoided. The heat dissipation system for the motor avoids the problems of sensor temperature excursion, unstable working condition of the motor, thermal expansion of a sample and the like caused by heat accumulation of the rack. Due to the sitting type layout, the stable base, the holes in the specific positions and the small instrument size, the device can be perfectly matched with the experiment conditions of a synchrotron radiation laboratory. The in-situ mechanical detection rack and the in-situ mechanical detection device can be directly used for carrying out synchrotron radiation in-situ mechanical detection operation.

Description

Technical Field

[0001] The present invention belongs to the field of synchrotron radiation and mechanical testing, and in particular relates to an in-situ mechanical testing frame, device and method for a synchrotron radiation light source. Background Art

[0002] Synchrotron radiation technology has unique advantages in the field of materials science, including high brightness, high collimation, wide wavelength range and high time resolution, which enables it to perform high-resolution X-ray diffraction, small-angle X-ray scattering, thin film and multilayer analysis, time-resolved X-ray diffraction, X-ray tomography, surface and interface research, X-ray fluorescence spectroscopy, stress and strain analysis, X-ray absorption spectroscopy, and in-situ detection under high pressure and high temperature conditions. These characteristics enable synchrotron radiation technology to provide detailed structural information and dynamic process data of samples, becoming an indispensable tool for studying nanomaterials, thin films, multilayer films, catalytic materials, energy materials, composite materials and material behavior under extreme environments, providing strong support for the development of new materials and performance optimization.

[0003] Mechanical properties testing is also of great significance in the field of materials science. It can reveal the behavior of materials under different stress and strain conditions and provide data for understanding and predicting key mechanical properties of materials such as strength, toughness, hardness, elastic modulus and fracture toughness. Through mechanical properties testing, the durability and reliability of materials in actual use can be evaluated, the design and optimization of materials can be guided, and key problems in engineering can be solved. In addition, mechanical properties testing can also help identify and analyze defects, fatigue and fracture mechanisms of materials, promote the development of new materials and the improvement of existing materials, and ensure their stable performance and safe and reliable performance in various application environments.

[0004] Synchrotron radiation technology and mechanical properties testing are both of great significance in the field of materials science. The former can provide detailed structural information and dynamic process data, while the latter can reveal the behavior of materials under different stress or strain conditions. The combination of the two can be used for synchrotron radiation in-situ mechanical testing, which can observe the synchronous changes in the atomic structure of the material when it is deformed or fatigued, making its deformation, fatigue and other mechanisms clearer. However, there are still many difficulties in synchrotron radiation in-situ mechanical testing of small-sized samples such as millimeters, microns and nanometers. The main reason is the lack of mechanical testing instruments that are suitable for samples of the above sizes and can meet the conditions of synchrotron radiation testing. Existing commercial mechanical testing instruments are mainly designed to meet the testing needs of meter-sized samples. They are generally large in size, heavy, difficult to move, and have low force or displacement test accuracy. They lack X-ray penetration paths and cannot meet the needs of synchrotron radiation in-situ mechanical testing of small-sized samples.

[0005] So far, people have made many attempts to observe the microstructure of small-sized samples in situ during mechanical testing, such as stretching machines suitable for in-situ scanning electron microscope testing, high-temperature mechanical testing devices suitable for in-situ scanning electron microscope testing, and in-situ mechanical testing devices suitable for backscattered electron diffraction analysis. These attempts have each achieved the need for in-situ mechanical testing of materials in specific structural characterization instruments. However, these existing devices are not suitable for the requirements of synchrotron radiation in-situ mechanical testing. Compared with instruments such as scanning electron microscopes, synchrotron radiation testing has completely different requirements for instruments. Synchrotron radiation testing relies on large synchrotron radiation detection devices, and the beam continues to extend in the horizontal direction, which requires that the sample cavity has a gap in the horizontal direction to allow the synchrotron radiation light source beam to pass through. In order to prevent the material from being contaminated or damaged by the splashing of debris during testing, the existing instruments do not design holes in the vertical direction of the sample cavity that allow the beam to fully penetrate. In addition, in order to be placed in the narrow scanning electron microscope cavity, the existing instruments and equipment have chosen a compact horizontal design that is conducive to reducing the overall volume, that is, fixing the instrument parts on a horizontal plane. Such a design makes it difficult for these mechanical devices to be placed vertically and stably, which may lead to failure of the test due to instability during the test.

[0006] Fatigue testing of materials has extremely high requirements for the force and displacement loading rate of the sample. The motor needs to output a large torque while maintaining high-speed rotation. The temperature rise caused by the large current load will affect the performance of the sample and introduce uncontrollable errors. Therefore, it is also necessary to add a heat dissipation system for the motor. Existing instruments and equipment do not have heat dissipation measures for motors. The reason is to reduce the overall size of the instrument to make it suitable for scanning electron microscope detection. The temperature rise is bound to affect the working condition of the motor, thereby increasing the instability of the test results. If a motor with a smaller torque is used to circumvent the heat dissipation problem, it will lead to a loss of load and speed, which is not suitable for testing under high speed and high load conditions.

[0007] In terms of the transmission structure of the mechanical structure, the current mainstream choice is worm gear, planetary reducer or a combination of the two. The prior art uses a 2-stage 0.5 module 20-tooth worm gear transmission. The lower module and higher number of teeth enable the instrument to obtain a larger reduction ratio while maintaining a small volume, but at the same time it causes problems such as low load capacity, high machining accuracy requirements, faster wear rate, low transmission efficiency, and high manufacturing and maintenance costs. It is not suitable for high-speed and high-load applications. Some prior arts use a transmission scheme of reducer-gear-worm gear, placing the motor at one end of the instrument to reduce the lateral volume of the instrument. Its complex multi-stage transmission system will cause higher torque loss, and the gear set that simply serves as a connection will also increase the loss of mechanical energy. In fact, the more stages of the transmission system, the larger the commutation gap caused by wear, which is not conducive to fatigue testing of frequent commutation. Some prior arts also use a solution of dual motors directly connected to two screws through a reducer, which seems to solve the problems of transmission loss and commutation idle stroke. In fact, the high-frequency signals received in parallel by the two drivers have a packet loss rate, and wear of the gear set in the reducer is also inevitable. While transmission loss and commutation lost motion still exist, the instability of the asynchronous rotation of the two screws is also introduced. The motors and gear sets on both sides cannot be guaranteed to be without differences. The asymmetry on both sides will cause the stress states of the two screw nuts to be different. The nut stress concentration caused by the asymmetry will also increase the wear of the screw.

[0008] Perfect transmission between the worm wheel and the worm requires a certain center distance between the two. However, under the condition of maintaining the optimal center distance, the rotating worm will exert an outward force on the worm wheel, and this force will be quite large under multi-stage reduction. In some prior arts, the worm wheel connected to the lead screw is only fixed with a frame on the side close to the lead screw, and is completely suspended on the outside close to the motor. This long-term external force will cause the lead screw to have radial shear force during the operation of the instrument, aggravating the wear between the lead screw and the nut, the worm wheel and the worm, and causing return travel and unstable operation of the lead screw and nut.

[0009] The screw is the key to transmission. The quality of the screw is related to whether the loading process is smooth or not. The designs in the prior art all use ordinary screws, which have simple manufacturing processes, poor alignment, loose fit with the nut, difficult to avoid idle travel, large friction resistance during operation, and serious wear and heat caused by operation.

[0010] The quality of sample clamping is directly related to the accuracy and reliability of the measurement results. In the prior art, the sample is clamped by the clamps on the left and right sides. Each side of the clamp is divided into two parts: a base and a cover plate, and the two parts are tightened and fixed with screws. However, the process of placing one end of the sample on the base and then covering the cover plate can easily offset the sample, causing the axis of the sample to deviate from the center line of the clamp, increasing the detection error. When the screws are turned to fix the cover plate, the cover plate will be aligned with the base, but the process from misalignment to alignment will also cause the sample sandwiched between the two to shift.

[0011] In summary, the existing in-situ mechanical testing instruments do not have through holes that allow the synchrotron radiation beam to pass through, and cannot meet the requirements of vertical testing. The motors selected in the existing designs are not equipped with a heat dissipation system and a fully enclosed anti-seismic stabilization system, which limits the motor size, initial torque and working current; the multi-stage reducer used to increase the torque also increases the wear of the transmission system and limits the maximum rate of sample loading, making it impossible to achieve both torque and loading rate. Specifically, the problems with the transmission structure of the existing instruments are: the worm gear modulus of the stretching machine suitable for in-situ scanning electron microscope detection is low; the worm gear of the high-temperature mechanical testing device suitable for in-situ scanning electron microscope detection is only fixed on one side; a pair of motor reducers of the in-situ mechanical testing device suitable for backscattered electron diffraction analysis cannot guarantee the same working conditions during operation; all three use ordinary screws; these will cause the instability of the transmission structure and reduce the service life of the equipment; the existing fixture will cause the sample axis to deviate from the center line of the fixture. Summary of the invention

[0012] Therefore, the purpose of the present invention is to overcome the defects in the prior art and provide an in-situ mechanical detection rack, device and method for a synchrotron radiation light source.

[0013] Before describing the present invention, the terms used in this article are defined as follows:

[0014] The term "PC side" refers to applications or services that run on a personal computer (PC), usually in contrast to the "mobile side". Such applications are usually optimized for traditional input devices such as keyboards and mice, and the interface layout is suitable for large-size displays.

[0015] The term "SEM" means: Scanning Electron Microscope.

[0016] The term "EBSD" means: Electron Backscatter Diffraction.

[0017] The term "servo motor" refers to: an electric motor used to precisely control position, speed, and torque, usually consisting of a motor body, a sensor (such as an encoder), and a control circuit. It continuously adjusts the output by receiving feedback signals to achieve precise movement in a closed-loop control system.

[0018] To achieve the above-mentioned object, the first aspect of the present invention provides an in-situ mechanical detection frame, the in-situ mechanical detection frame comprising:

[0019] Output power components for driving;

[0020] Transmission components used to amplify and transmit power;

[0021] Sensing components for real-time measurements;

[0022] heat dissipation components; and

[0023] A support member for supporting; wherein,

[0024] The in-situ mechanical testing frame is in a sitting position and is provided with an opening capable of passing a synchrotron radiation beam;

[0025] Preferably, the opening is circular and passes through the transmission component and the supporting component.

[0026] According to the in-situ mechanical testing frame of the first aspect of the present invention, the output power component comprises: a motor, a motor bracket and a motor cover, the motor is located on the motor bracket, and a motor cover is provided above the motor; wherein,

[0027] The motor is selected from one or more of the following: a stepper motor, a DC motor, a servo motor, preferably a stepper motor, and most preferably a bipolar stepper motor;

[0028] The torque of the motor is 0.3 to 1.5 N·m, preferably 0.7 to 1.5 N·m, and more preferably 1.0 to 1.5 N·m;

[0029] The rotation speed of the motor is 300 to 2000 rpm, preferably 600 to 1500 rpm, more preferably 1000 to 1200 rpm; and / or

[0030] The motor is connected to the motor bracket via a heat-conducting component;

[0031] Preferably, the heat-conducting component is selected from one or more of the following: thermal pads, thermal paste, thermal grease, thermal adhesive, thermal plate, liquid metal thermal conductor, composite thermal conductive material, more preferably selected from one or more of the following: thermal pads, thermal paste, thermal grease, liquid metal thermal conductor, further preferably selected from one or more of the following: thermal pads, thermal paste, thermal grease.

[0032] According to the in-situ mechanical testing frame of the first aspect of the present invention, the transmission components include: a worm wheel, a worm, a ball screw and a screw nut; wherein,

[0033] A screw nut is connected to each side of the ball screw;

[0034] The worm wheel is fixed on the ball screw by a top screw;

[0035] The number of the worm gears is 1 to 5, preferably 2 to 3, and most preferably 3;

[0036] The number of the worms is 1 to 3, preferably 2 to 3, and most preferably 3;

[0037] The number of the ball screws is 1 to 4, preferably 2 to 4, and most preferably 2; and / or

[0038] The number of the screw nuts is 2 to 8, preferably 4 to 8, and most preferably 4;

[0039] Preferably, the worm is selected from: a first worm, a second worm, a third worm;

[0040] Preferably, the worm gear is selected from: a first worm gear, a second worm gear, a third worm gear; and / or

[0041] Preferably, the ball screw is selected from: a first ball screw and a second ball screw.

[0042] According to the in-situ mechanical testing frame of the first aspect of the present invention, the transmission component further comprises: a coupling, a worm housing, a transmission rod bracket, a middle plate and a ball screw bracket; wherein,

[0043] One side of the coupling is connected to the output shaft of the motor, and the other side is connected to the worm;

[0044] Both ends of the worm are fixed in the worm housing through ball bearings;

[0045] The worm housing is fixed to the middle plate;

[0046] The transmission rod bracket is fixed to the middle plate;

[0047] One side of the ball screw is fixed to one side of the middle plate, and the other side is fixed to the ball screw bracket through a ball bearing and a top screw connecting the ball bearing and the ball screw bracket;

[0048] The ball screw bracket is fixed on the other side of the middle plate; and / or

[0049] The transmission rod bracket comprises a first transmission rod bracket and a second transmission rod bracket;

[0050] Preferably, the other side of the coupling is connected to the first worm;

[0051] Preferably, the second worm, the third worm and the first worm wheel are fixed on one side of the middle plate by the first transmission rod bracket and the second transmission rod bracket supporting at the same time, and the groove for simultaneous support is preferably offset from the center point of the left and right side supports; and / or

[0052] Preferably, the second worm gear and the third worm gear are respectively fixed to the first ball screw and the second ball screw by means of top screws.

[0053] According to the in-situ mechanical testing frame of the first aspect of the present invention, the sensing components include: a force sensor, a grating ruler, a sample fixture, an upper right block, an upper middle block, an upper left block, a slider and a slide rail; wherein,

[0054] One side of the force sensor is connected to the upper right block, and the other side is connected to the sample fixture;

[0055] The body of the grating ruler is connected to the upper middle block, the reading head of the grating ruler is connected to the upper left block, and is installed on the same side as the motor; and / or

[0056] The slide rail is connected to the upper middle block, the slide block is connected to the upper left block, and the slide rail is connected to the slide block.

[0057] According to the in-situ mechanical testing frame of the first aspect of the present invention,

[0058] The number of the sample holders is at least 2, preferably 2 to 6; and / or

[0059] The sample fixture comprises a fixture base and a fixture cover;

[0060] Preferably, the clamp base and the clamp cover are provided with a slot and a pin respectively; and / or

[0061] Preferably, the clamp cover is provided with a handle.

[0062] According to the in-situ mechanical testing rack of the first aspect of the present invention, the heat dissipation component comprises: a fan, a fan guide block, a heat dissipation fin and an air outlet; wherein,

[0063] The fan, the fan guide block, the heat dissipation fins and the air outlet are fixed on the motor bracket; and / or

[0064] The heat generated by the operation of the motor is transferred to the motor bracket and the heat dissipation fins through the heat conduction component, and the wind blown out by the fan passes through the heat dissipation fins and takes away the heat after being straightened by the fan guide block, and the wind carrying the heat is discharged from the rack through the air outlet.

[0065] According to the in-situ mechanical testing frame of the first aspect of the present invention, the supporting components include: a left supporting plate, a right supporting plate, a rear supporting plate and a bottom supporting plate; wherein,

[0066] The motor bracket is located on the middle plate;

[0067] The middle plate is fixed to the rear support plate by screws;

[0068] Preferably, the opening passes through the middle plate and the rear support plate, and the center of the opening is located at the projection of the midpoint of the line connecting each of the sample fixtures on the middle plate; and / or

[0069] The left support plate, the right support plate, the rear support plate and the bottom support plate are connected respectively by screws.

[0070] A second aspect of the present invention provides an in-situ mechanical material detection device for a synchrotron radiation light source, the in-situ mechanical material detection device comprising:

[0071] The in-situ mechanical testing frame described in the first aspect;

[0072] Controller; and

[0073] Terminal control software;

[0074] Preferably,

[0075] The terminal control software understands the operating status of the in-situ mechanical material detection device by exchanging signals with the controller, and sends control instructions to the controller in real time;

[0076] The controller receives the signal from the terminal control software to control the motor, obtains the value of the sensor in real time and transmits the signal to the terminal control software; and / or

[0077] The terminal is selected from one or more of the following: a mobile phone, a desktop computer, a laptop computer, preferably a desktop computer or a laptop computer, and most preferably a laptop computer.

[0078] A third aspect of the present invention provides an in-situ mechanical material detection method, the material detection method comprising: using the in-situ mechanical detection rack described in the first aspect or the in-situ mechanical material detection device described in the second aspect;

[0079] Preferably, the in-situ mechanical material detection method comprises the following steps:

[0080] 1) The in-situ mechanical testing frame is connected to the computer in the main control room through the controller, and communicates with the controller in real time and obtains sensor signals through the terminal control software on the controller;

[0081] 2) The incident synchrotron radiation beam in the beam station penetrates the center of the sample held by the sample fixture, and excites each diffraction beam. Each diffraction beam passes through the preset opening on the in-situ mechanical detection frame without hindrance, and finally reaches the detector and records the state of the diffraction spot or diffraction ring.

[0082] Synchrotron radiation is a key technology for characterizing material structure. Exploring the structural changes of materials under different mechanical loading modes makes the development of an in-situ mechanical detection platform suitable for synchrotron radiation extremely important. The present invention is directed to in-situ mechanical detection suitable for synchrotron radiation.

[0083] According to a preferred embodiment of the present invention, the instrument of the present invention adopts a sitting posture: the plane formed by the two screws is not on the horizontal plane selected by the existing instruments, but is perpendicular to the horizontal plane. Such a design can allow the synchrotron radiation beam along the horizontal direction to penetrate the sample without obstruction.

[0084] The present invention leaves enough space in front of the area where the sample is placed in the instrument to ensure that the synchrotron radiation beam is not blocked, and a circular hole with a diameter of 42 mm is designed on the frame on the rear side of this area to allow the synchrotron radiation beam to pass through.

[0085] In terms of driving, the present invention selects a large stepper motor with a torque of 1.2 N m, and designs a matching fully enclosed stepper motor fixing frame and air cooling system, which increases the mechanical stability and temperature stability of the motor during operation, allowing the motor to stably output high torque and high speed at the same time.

[0086] In terms of transmission, the present invention selects a simple two-stage worm gear transmission, avoiding the complex, multi-stage transmission methods such as the multi-stage gear set in the reducer and the external reversing gear set, effectively improving the transmission efficiency and reducing the energy loss, heating and wear of the instrument caused by friction. The present invention selects a 1-module 15-tooth worm gear. The higher module is matched with a suitable reduction ratio to greatly improve the strength of the transmission structure. The selected stepper motor with a large torque can output high torque and high speed at the same time under this reduction ratio.

[0087] The present invention adopts mechanical fixation on both sides of each stage of the worm gear, uses extremely high-strength zirconium-based amorphous alloy in the stress concentration area, and uses top screws on the frame to tightly fix the bearings that contact the rotating shaft. These measures avoid the instability of the screw caused by stress between the worm gear and the worm gear, so that the entire transmission structure can move stably and smoothly.

[0088] The transmission components of the present invention include: a worm wheel, a worm, a ball screw, a screw nut, a coupling, a worm housing, a transmission rod bracket, a middle plate and a ball screw bracket; wherein,

[0089] A screw nut is connected to each side of the ball screw;

[0090] The number of the worm gears is 1 to 5, preferably 2 to 3, and most preferably 3;

[0091] The number of the worms is 1 to 3, preferably 2 to 3, and most preferably 3;

[0092] The number of the ball screws is 1 to 4, preferably 2 to 4, and most preferably 2; and / or

[0093] The number of the screw nuts is 2 to 8, preferably 4 to 8, and most preferably 4;

[0094] One side of the coupling is connected to the output shaft of the motor, and the other side is connected to the first worm;

[0095] The worm housing is fixed to the middle plate;

[0096] One side of the ball screw is fixed to one side of the middle plate, and the other side is fixed to the ball screw bracket through a ball bearing and a top screw connecting the ball bearing and the ball screw bracket;

[0097] The ball screw bracket is fixed on the other side of the middle plate; and / or

[0098] The transmission rod bracket comprises a first transmission rod bracket and a second transmission rod bracket;

[0099] Preferably, the worm comprises: a first worm, a second worm and a third worm;

[0100] Preferably, the worm gear comprises: a first worm gear, a second worm gear and a third worm gear; and / or

[0101] Preferably, the ball screw comprises a first ball screw and a second ball screw.

[0102] Preferably, the other side of the coupling is connected to the first worm;

[0103] Preferably, both ends of the first worm are fixed in the worm housing via ball bearings;

[0104] Preferably, the first transmission rod bracket and the second transmission rod bracket are fixed to the middle plate by screws;

[0105] Preferably, the second worm, the third worm and the first worm wheel are fixed on one side of the middle plate by the first transmission rod bracket and the second transmission rod bracket supporting at the same time, and the groove for simultaneous support is preferably offset from the center point of the left and right side supports; and / or

[0106] Preferably, the second worm gear and the third worm gear are respectively fixed to the first ball screw and the second ball screw by means of top screws.

[0107] The present invention uses a left-right rotating integrally ground ball screw and a screw nut to drive the movement of the slider. The integrally ground grinding process makes the screw have extremely high alignment, the ball track is smooth and unobstructed, and there will be no idle error when the nut moves on the screw; the friction sliding of the ordinary screw is replaced by the rolling of the steel balls of the ball screw, which greatly reduces the friction resistance; the use of a single motor drive avoids the asymmetric working conditions of the motor and reducer in the dual-motor layout.

[0108] In terms of the clamps for holding samples, the present invention has slots on the base of each side of the clamps, and has pins added to the corresponding positions of the cover plate, so that the two can fit tightly and slide freely. This design allows the clamp plate to remain parallel to the base during the process of clamping, and the corresponding threaded holes to remain aligned. There is no need to worry about the process of covering the cover plate and tightening the screws causing the cover plate and the base to move relative to each other, thereby causing the sample to move. The present invention also adds a handle to the cover plate, so that the force can be better exerted when covering the cover plate, further ensuring the stability of the sample clamping.

[0109] The frame of the present invention is provided with holes for passing the synchrotron radiation beam. The frame is designed to be seated, that is, the holes through which the synchrotron radiation beam passes are in the horizontal direction. It is driven by a single stepper motor. The stepper motor is connected to the frame for fixing the stepper motor through a thermal pad and thermal grease. The frame for fixing the stepper motor is connected to the heat dissipation fins. The streamlined wind guide block guides the wind blown out by the fan into the heat dissipation fins and guides it out through the streamlined air outlet. It is driven by a two-stage worm gear reduction system, and each worm gear and worm gear has a firm rigid fixation on both sides. A top screw hole is provided on the outside of the hole for fixing the bearing, so that the bearing can be further fixed with a top screw. A ball screw is used. The grating scale and the motor are installed on the same side. The base and cover plate of the clamp are designed with auxiliary alignment devices. The cover plate of the clamp is a handle that is convenient for holding.

[0110] The present invention has broad prospects: the present invention is suitable for synchrotron radiation in-situ mechanical detection or in-situ mechanical detection of any small cavity characterization means.

[0111] Synchrotron radiation sources can provide extremely high brightness and high-resolution X-rays, which are widely used in materials science, life science, chemistry, physics and other fields. They help to understand the microstructure and dynamic process of matter in a breakthrough way, promote the development of new materials and new drugs, and provide solutions in energy, environment and other aspects, which will promote the development of scientific frontiers and the improvement of national scientific and technological competitiveness as a whole. my country has gradually transitioned from catching up to leading in the field of synchrotron radiation sources. The construction of a new generation of synchrotron radiation sources will inevitably require corresponding advanced in-situ characterization methods. This invention will perfectly fill the gap in synchrotron radiation in-situ mechanical detection devices.

[0112] Compared with the prior art, the in-situ mechanical detection rack, device and method for synchrotron radiation source of the present invention can have but are not limited to the following beneficial effects:

[0113] 1. It can be directly used for synchrotron radiation in-situ mechanical testing. The sitting layout, stable base, openings at specific locations, and small instrument size make it perfectly adapted to the experimental conditions of synchrotron radiation laboratories.

[0114] 2. Large stepper motors can provide large torque and high speed at the same time, and the angle control is precise, especially in the control of small displacements, which can be accurate to tens of nanometers per step. The motor is large and can output large torque and high speed at the same time, which greatly expands the experimental window of mechanical testing.

[0115] 3. The left-right rotating integrated ground ball screw has extremely high alignment and precision, smooth movement, low friction resistance and negligible rotational idle stroke, while improving energy conversion rate and motion control accuracy.

[0116] 4. Rigid fixation is applied to both ends of each stage of the worm gear transmission shaft to ensure that the most appropriate center distance is maintained between the worm wheel and the worm, reducing wear and power loss, and avoiding deformation of the lead screw connected to the worm wheel due to the shear force provided by the worm.

[0117] 5. The fixture with slot and pin design can avoid sample deviation caused by slight sliding of the fixture cover when clamping the sample. The ergonomically designed fixture cover handle makes sample clamping more labor-saving and precise.

[0118] 6. The self-developed PC control software allows operators to easily understand the operating status of the equipment and use programmable loading control functions to perform complex loading modes such as tension, compression, fatigue, and cyclic loading.

[0119] 7. The in-situ mechanical detection frame of the present invention adopts a sitting design. Compared with the prior art, the frame of the present invention can stably maintain a vertical state, and the sample normal is along the horizontal direction (the direction of the synchrotron radiation beam), which is suitable for synchrotron radiation detection.

[0120] 8. The heat dissipation system for the motor of the present invention includes a fan, a wind guide block, heat dissipation fins, an air outlet, and a heat conductive pad and heat conductive silicone grease are arranged on the periphery of the motor. This heat dissipation system allows the heat generated by the motor to be discharged in time, avoiding problems such as sensor temperature drift, unstable motor working condition, and thermal expansion of samples caused by heat accumulation in the rack.

[0121] 9. Using multiple sample fixtures can measure the displacement-force signals of multiple samples at the same time, greatly improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0122] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:

[0123] Figure 1 A diagram showing the working principle of the in-situ mechanical detection device for a synchrotron radiation light source of the present invention is shown.

[0124] Figure 2 The structural diagram of the in-situ mechanical detection frame for a synchrotron radiation light source of the present invention is shown.

[0125] Figure 3 It shows the situation where the in-situ mechanical detection device for a synchrotron radiation light source of the present invention is applied to in-situ synchrotron radiation detection.

[0126] Figure 4 Shown is the motor mount in the heat sink.

[0127] Figure 5 A heat dissipation fan guide block in a heat dissipation device is shown.

[0128] Figure 6 The middle plate in the support device is shown.

[0129] Figure 7 The worm housing in the support device is shown.

[0130] Figure 8 The fixture base and fixture cover of the sample fixture are shown.

[0131] Fig. 9 The operating interface of the PC control software is shown.

[0132] Fig.10 A structural diagram of the shielded portion of the in-situ mechanical detection rack for a synchrotron radiation light source of the present invention is shown.

[0133] Description of reference numerals:

[0134] 1. Motor bracket; 2. Motor cover; 3. First screw nut; 4. Force sensor; 5. Upper right block; 6. Ball screw bracket; 7. Upper middle block; 8. Second screw nut; 9. First sample fixture; 10. First ball screw; 11. Second sample fixture; 12. Upper left block; 13. Slider; 14. Slide rail; 15. Bottom support plate; 16. First transmission rod bracket; 17. Second worm gear; 18. Second worm; 19. Middle Plate; 20, left support plate; 21, third worm gear; 22, third worm; 23, second transmission rod bracket; 24, first worm gear; 25, first worm; 26, worm housing; 27, air outlet; 28, cooling fins; 29, grating ruler; 30, second ball screw; 31, rear support plate; 32, right support plate; 33, coupling; 34, motor fixing plate; 35, motor; 36, fan guide block; 37, cooling fan. DETAILED DESCRIPTION

[0135] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings. However, it should be understood that these embodiments are only used for more detailed and specific description and should not be understood as limiting the present invention in any form.

[0136] This section generally describes the materials and test methods used in the experiments of the present invention. Although many materials and operating methods used to achieve the purpose of the present invention are well known in the art, the present invention is still described as detailed as possible. It is clear to those skilled in the art that in the context, if not specifically stated, the materials and operating methods used in the present invention are well known in the art.

[0137] Example 1

[0138] This embodiment is an exemplary description of the in-situ mechanical detection frame for a synchrotron radiation light source of the present invention.

[0139] The in-situ mechanical detection frame for a synchrotron radiation source of the present invention comprises:

[0140] Output power components for driving;

[0141] Transmission components used to amplify and transmit power;

[0142] Sensing components for real-time measurements;

[0143] heat dissipation components; and

[0144] A support member for supporting; wherein,

[0145] The in-situ mechanical detection frame is in a sitting position and is provided with an opening capable of passing a synchrotron radiation beam. The opening is located on the middle plate, and the center of the opening is located at the projection of the midpoint of the line connecting the two sample fixtures on the middle plate.

[0146] The parts of the in-situ mechanical testing frame are marked as follows Figure 2 As shown:

[0147] The output power component includes: a motor 35 controlled by a controller, a motor bracket 1 and a motor cover 2. The motor used in this embodiment is a large stepper motor, which can output a large torque and a high speed at the same time, and the speed and rotation direction of the motor can be adjusted. The motor is located on the motor bracket 1, and a motor cover 2 is provided above the motor; the motor is connected to the motor bracket through a thermal pad and thermal grease.

[0148] The transmission components include: a coupling, a worm housing, a first transmission rod bracket, a second transmission rod bracket, a middle plate, a ball screw bracket, a worm wheel, a worm, a ball screw and a screw nut; wherein, the number of worm wheels used in this embodiment is 3, the number of worms is 3, the number of ball screws is 2, the number of screw nuts is 4, and the number of sample fixtures is 2, specifically, as Figure 2 , 10 As shown: a coupling 33, a third worm 22, a third worm wheel 21, a second worm 18, a second worm wheel 17, a first worm wheel 24, a first worm 25, a first ball screw 10, a second ball screw 30, a first sample fixture 9, and a second sample fixture 11.

[0149] One side of the coupling is connected to the output shaft of the stepper motor, and the other side is connected to the first worm, and the first worm is connected to the worm housing through a ball bearing;

[0150] The worm housing is fixed to the middle plate;

[0151] The second and third worms and the first worm wheel are fixed on one side of the middle plate by the way of simultaneously supporting the first and second transmission rod brackets, and the simultaneously supported grooves are preferably offset from the center points of the left and right side supports;

[0152] One side of the ball screw is fixed to one side of the middle plate, and the other side is fixed to the ball screw bracket through a ball bearing and a top screw connecting the ball bearing and the ball screw bracket;

[0153] The ball screw bracket is fixed on the other side of the middle plate by screws.

[0154] Each of the ball screws is integrally formed for left-right rotation, and is connected to a screw nut on each side;

[0155] Both ends of the first worm are fixed in the worm housing through ball bearings, and the worm housing is fixed to the middle plate through screws;

[0156] The first transmission rod bracket and the second transmission rod bracket are fixed to the middle plate by screws; and / or

[0157] The second and third worm gears are respectively fixed on the first and second ball screws through top screws.

[0158] like Figure 6 As shown, the left side of the middle plate of the present invention fixes the positions of the two worm gears, and adopts a solution of supporting both the left and right sides at the same time. This solution allows the worm gear to mesh tightly while avoiding the shear force of the worm gear on the lead screw, effectively preventing the force between the worm gear and the worm gear from causing the shaft to bend. The groove for accommodating the worm gear adopts a design that deviates from the center point of the left and right supports, and the reduction of the cut-off area makes the overall structure of the left and right supports more solid.

[0159] like Figure 7 As shown, the worm housing of the present invention also adopts a design in which both left and right ends are fixed at the same time, which effectively prevents the force between the worm gear and the worm from bending the shaft. The compact structure and solid material of the middle plate, the worm housing, and the ball screw bracket make the transmission system run smoothly and the worm gear and the worm gear are tightly meshed without deformation.

[0160] The sensing components include a force sensor 4 , a grating ruler 29 , a first sample fixture 9 , a second sample fixture 11 , an upper right block 5 , an upper middle block 7 , an upper left block 12 , a slider 13 and a slide rail 14 .

[0161] One side of the force sensor is connected to the upper right block, and the other side is connected to the first sample fixture, so that the force loaded on the sample can be measured in real time.

[0162] The body of the grating ruler is connected to the upper middle block, and the reading head is connected to the upper left block, so that the deformation amount of the sample can be measured in real time.

[0163] The slide rail is connected to the upper middle block, the slide block is connected to the upper left block, and the slide rail is connected to the slide block.

[0164] The second sample fixture is connected to the upper left block.

[0165] like Figure 8 As shown, the first and second sample clamps are both composed of a clamp base and a clamp cover. The clamp base and the clamp cover of the sample clamp of the present invention are respectively designed with grooves and pins at their corresponding positions, and the grooves and pins can be tightly combined so that the two can only be displaced along the direction of the threaded hole, thereby avoiding sample deviation caused by shaking during the process of covering the clamp cover. A grip is designed on the clamp cover, which makes it easier to exert force when covering the clamp cover, further increasing the stability of the clamp component.

[0166] The heat dissipation components include: a heat dissipation fan 37, a fan guide block 36, heat dissipation fins 28 and an air outlet 27. The heat dissipation fan, the fan guide block, the heat dissipation fins and the air outlet are all fixed on the motor bracket. The heat generated by the large stepper motor when working is transferred to the motor bracket and the heat dissipation fins through the thermal pad and thermal grease. The wind blown out by the heat dissipation fan is straightened by the guide block and passes through the heat dissipation fins and takes away the heat therein. The wind carrying the heat is discharged from the frame through the streamlined air outlet. This set of heat dissipation components allows the heat generated by the motor operation to be discharged in time, avoiding problems such as sensor temperature drift, unstable motor working conditions, and thermal expansion of samples caused by heat accumulation in the frame.

[0167] like Figure 4 As shown, the motor bracket of the present invention simultaneously plays the role of fixing the motor, the cooling fan guide block, the cooling fan, and the cooling fins, and performs heat exchange with the motor through the thermal pad and thermal grease to dissipate heat.

[0168] like Figure 5 As shown, the heat dissipation fan guide block of the present invention adopts a streamlined design that is conducive to wind gathering, so that the wind blown out by the fan has a higher flow rate due to the reduction of the air duct, and quickly passes through the heat dissipation fins, making the heat dissipation more efficient.

[0169] The supporting components include: a left supporting plate 20, a right supporting plate 32, a rear supporting plate 31 and a bottom supporting plate 15. The supporting plates are connected by screws, and the frame formed by them enables the rack to be placed in 6 postures (each face of the hexahedron can be used as the bottom face) to meet different test requirements.

[0170] Example 2

[0171] This embodiment is an exemplary description of the in-situ mechanical detection device and detection method for a synchrotron radiation light source of the present invention.

[0172] The in-situ mechanical testing device consists of three parts: a frame, a controller, and a PC-side control software. The working principle of the in-situ mechanical testing device is as follows: Figure 1 As shown: The PC-side control software exchanges signals with the controller to understand the operating status of the equipment, and sends the latest control instructions to the controller in real time. The controller receives signals from the PC-side control software to perform motor control or sensor zeroing and calibration, and obtains the current values ​​of the mechanical sensor and displacement sensor in real time and transmits the signal to the PC-side control software. The power of the rack comes from the stepper motor that drives the ball screw to rotate through the worm gear component.

[0173] like Figure 3As shown in the figure, the rack is connected to the computer in the main control room through the controller. The operator communicates with the controller in real time through the PC control software on it to control the motor and obtain sensor signals. The incident beam of synchrotron radiation in the beam station penetrates the center of the sample clamped by the two fixtures and excites each diffraction beam. Each diffraction beam passes through the preset large hole on the rack without hindrance and finally reaches the detector. The detector records the state of the diffraction spot (diffraction ring) at this time in real time.

[0174] like Fig. 9 As shown, the left side is the real-time drawing area for data, which can display the real-time measured data in the form of a curve graph, and the items (time, force, displacement, stress, strain) and units of the horizontal and vertical axes can be switched in real time.

[0175] The right side from top to bottom are:

[0176] Real-time time display, change time unit, time zeroing

[0177] Real-time force display, change force unit, force zeroing

[0178] Real-time displacement display, change displacement unit, displacement zeroing

[0179] Change the horizontal axis display items, change the vertical axis display items

[0180] Start drawing, stop drawing, image reset, zero all sensors

[0181] Force sensor zero point calibration, force sensor weight point calibration

[0182] Start collecting data, stop collecting data, clear the collected data set

[0183] Manual control mode (manually control the sample loading rate and direction)

[0184] Automatic target control mode (automatically loads to the set project value)

[0185] Automatic sinusoidal control mode (continuously perform fatigue testing on samples in sinusoidal mode)

[0186] Automatic cycle control mode (automatically load to the set item value, and cycle load between two set values)

[0187] Automatic programming control mode (programming of complex control modes)

[0188] Export the data.

[0189] Example 3

[0190] This embodiment is another exemplary description of the in-situ mechanical detection frame for a synchrotron radiation light source of the present invention.

[0191] The difference from Example 1 is that: the number of worm wheels used in this embodiment is 1, the number of worms is 1, the number of ball screws is 1, and the number of screw nuts is 2. Specifically, the first worm wheel, the second worm wheel, the first worm, the second worm, the first ball screw, and the screw nuts on both sides of the first ball screw in Example 1 are removed, and the side of the coupling originally connected to the first worm in Example 1 is changed to be connected to the third worm, which can also achieve the same effect as Example 1.

[0192] The use of a set of worm gears reduces the return difference and improves the accuracy of repeated tests; the use of a ball screw reduces the cost and allows the frame to remain stably in a vertical state, with the sample normal along the horizontal direction (the direction of the synchrotron radiation beam), which is suitable for synchrotron radiation detection.

[0193] Example 4

[0194] This embodiment is another exemplary description of the in-situ mechanical detection frame for a synchrotron radiation light source of the present invention.

[0195] The difference from Example 1 is that: the number of worm wheels used in this embodiment is 2, the number of worms is 2, the number of ball screws is 1, and the number of screw nuts is 2. Specifically, the effect of Example 1 can be achieved by removing the second worm wheel, the second worm, the first ball screw, and the screw nuts on both sides of the first ball screw in Example 1.

[0196] The use of a ball screw reduces costs and allows the frame to remain stably in a vertical state. The sample normal is along the horizontal direction (the direction of the synchrotron radiation beam), which is suitable for synchrotron radiation detection.

[0197] Example 5

[0198] This embodiment is another exemplary description of the in-situ mechanical detection frame for a synchrotron radiation light source of the present invention.

[0199] The difference from Example 1 is that the number of worm wheels used in this embodiment is 5, the number of worms is 3, the number of ball screws is 4, and the number of screw nuts is 8. Specifically, in Example 1, the second worm wheel and the third worm wheel are respectively provided with a fourth worm wheel and a fifth worm wheel at positions symmetrical to the second worm and the third worm, and in Example 1, the first ball screw and the second ball screw are respectively provided with a third ball screw and a fourth ball screw at positions symmetrical to the second worm and the third worm, and the fourth worm wheel is connected to the third ball screw, and the fifth worm wheel is connected to the fourth ball screw. A screw nut is placed on both sides of the third ball screw and the fourth ball screw. Under this condition, the second worm drives the first ball screw and the third ball screw at the same time, and the third worm drives the second ball screw and the fourth ball screw at the same time.

[0200] The use of four ball screws can increase the maximum load that the system can withstand to twice that of Example 1, thereby improving the stability of the system and allowing the frame to remain stably in a vertical state, with the sample normal along the horizontal direction (the direction of the synchrotron radiation beam), which is suitable for synchrotron radiation detection.

[0201] Example 6

[0202] This embodiment is yet another exemplary description of the in-situ mechanical detection frame for a synchrotron radiation light source of the present invention.

[0203] The difference from Example 1 is that the number of sample fixtures used in this embodiment is 6. Specifically, a third sample fixture and a fifth sample fixture are respectively added in front of and behind the first sample fixture in Example 1, so that the third sample fixture, the first sample fixture, and the fifth sample fixture are arranged in a row with exactly the same posture along the direction of the synchrotron radiation beam, and the third sample fixture and the fifth sample fixture are respectively connected to one side of a force sensor, and the other side of these force sensors is connected to the upper right block. A fourth sample fixture and a sixth sample fixture are respectively added in front of and behind the second sample fixture, so that the fourth sample fixture, the second sample fixture, and the sixth sample fixture are arranged in a row with exactly the same posture along the direction of the synchrotron radiation beam, and the fourth sample fixture and the sixth sample fixture are respectively connected to the upper left block.

[0204] The use of three pairs of sample fixtures can not only test three samples at the same time, improving the test efficiency, but also allow the test to be performed using only one pair of sample fixtures. In addition, the frame can also be stably maintained in a vertical state, with the sample normal along the horizontal direction (the direction of the synchrotron radiation beam), which is suitable for synchrotron radiation detection.

[0205] Comparative Example 1

[0206] This comparative example is a comparison between the in-situ mechanical detection device for a synchrotron radiation light source of the present invention and the prior art.

[0207] Table 1 Comparison of the in-situ mechanical detection device for synchrotron radiation source of the present invention with the prior art

[0208]

[0209]

[0210]

[0211]

[0212]

[0213] Although the effects of some embodiments are shown above, those skilled in the art should understand that according to the concept of the present invention, the aforementioned other embodiments without specific effects or other technical solutions of the present invention not shown in the embodiments can also achieve the following technical effects stated in the invention content section that are equivalent to the embodiments:

[0214] 1. It can be directly used for synchrotron radiation in-situ mechanical testing. The sitting layout, stable base, openings at specific locations, and small instrument size make it perfectly adapted to the experimental conditions of synchrotron radiation laboratories.

[0215] 2. Large stepper motors can provide large torque and high speed at the same time, and the angle control is precise, especially in the control of small displacements, which can be accurate to tens of nanometers per step. The motor is large and can output large torque and high speed at the same time, which greatly expands the experimental window of mechanical testing.

[0216] 3. The left-right rotating integrated ground ball screw has extremely high alignment and precision, smooth movement, low friction resistance and negligible rotational idle stroke, while improving energy conversion rate and motion control accuracy.

[0217] 4. Rigid fixation is applied to both ends of each stage of the worm gear transmission shaft to ensure that the most appropriate center distance is maintained between the worm wheel and the worm, reducing wear and power loss, and avoiding deformation of the lead screw connected to the worm wheel due to the shear force provided by the worm.

[0218] 5. The fixture with slot and pin design can avoid sample deviation caused by slight sliding of the fixture cover when clamping the sample. The ergonomically designed fixture cover handle makes sample clamping more labor-saving and precise.

[0219] 6. The self-developed PC control software allows operators to easily understand the operating status of the equipment and use programmable loading control functions to perform complex loading modes such as tension, compression, fatigue, and cyclic loading.

[0220] 7. The in-situ mechanical detection frame of the present invention adopts a sitting design. Compared with the prior art, the frame of the present invention can stably maintain a vertical state, and the sample normal is along the horizontal direction (the direction of the synchrotron radiation beam), which is suitable for synchrotron radiation detection.

[0221] 8. The heat dissipation system for the motor of the present invention includes a fan, a wind guide block, heat dissipation fins, an air outlet, and a heat conductive pad and heat conductive silicone grease are arranged on the periphery of the motor. This heat dissipation system allows the heat generated by the motor to be discharged in time, avoiding problems such as sensor temperature drift, unstable motor working condition, and thermal expansion of samples caused by heat accumulation in the rack.

[0222] 9. Using multiple sample fixtures can measure the displacement-force signals of multiple samples at the same time, greatly improving the test efficiency.

[0223] Although the present invention has been described to a certain extent, it is obvious that appropriate changes in various conditions can be made without departing from the spirit and scope of the present invention. It is understood that the present invention is not limited to the embodiments described, but belongs to the scope of the claims, which includes equivalent replacements of each factor described.

Claims

1. An in-situ mechanical testing frame, characterized in that: The in-situ mechanical testing frame comprises: Output power components for driving; Transmission components used to amplify and transmit power; Sensing components for real-time measurements; heat dissipation components; and A support member for supporting; wherein, The in-situ mechanical testing frame is in a sitting position and is provided with an opening capable of passing a synchrotron radiation beam; Preferably, the opening is circular and passes through the transmission component and the supporting component.

2. The in-situ mechanical testing frame according to claim 1, characterized in that: The output power component includes: a motor, a motor bracket and a motor cover, the motor is located on the motor bracket, and a motor cover is provided above the motor; wherein, The motor is selected from one or more of the following: a stepper motor, a DC motor, a servo motor, preferably a stepper motor, and most preferably a bipolar stepper motor; The torque of the motor is 0.3 to 1.5 N·m, preferably 0.7 to 1.5 N·m, and more preferably 1.0 to 1.5 N·m; The rotation speed of the motor is 300 to 2000 rpm, preferably 600 to 1500 rpm, more preferably 1000 to 1200 rpm; and / or The motor is connected to the motor bracket via a heat-conducting component; Preferably, the heat-conducting component is selected from one or more of the following: thermal pads, thermal paste, thermal grease, thermal adhesive, thermal plate, liquid metal thermal conductor, composite thermal conductive material, more preferably selected from one or more of the following: thermal pads, thermal paste, thermal grease, liquid metal thermal conductor, further preferably selected from one or more of the following: thermal pads, thermal paste, thermal grease.

3. The in-situ mechanical testing frame according to claim 1 or 2, characterized in that: The transmission components include: a worm wheel, a worm, a ball screw and a screw nut; wherein, A screw nut is connected to each side of the ball screw; The worm wheel is fixed on the ball screw by a top screw; The number of the worm gears is 1 to 5, preferably 2 to 3, and most preferably 3; The number of the worms is 1 to 3, preferably 2 to 3, and most preferably 3; The number of the ball screws is 1 to 4, preferably 2 to 4, and most preferably 2; and / or The number of the screw nuts is 2 to 8, preferably 4 to 8, and most preferably 4; Preferably, the worm is selected from: a first worm, a second worm, a third worm; Preferably, the worm gear is selected from: a first worm gear, a second worm gear, a third worm gear; and / or Preferably, the ball screw is selected from: a first ball screw and a second ball screw.

4. The in-situ mechanical testing frame according to claim 3, characterized in that: The transmission components also include: a coupling, a worm housing, a transmission rod bracket, a middle plate and a ball screw bracket; wherein, One side of the coupling is connected to the output shaft of the motor, and the other side is connected to the worm; Both ends of the worm are fixed in the worm housing through ball bearings; The worm housing is fixed to the middle plate; The transmission rod bracket is fixed to the middle plate; One side of the ball screw is fixed to one side of the middle plate, and the other side is fixed to the ball screw bracket through a ball bearing and a top screw connecting the ball bearing and the ball screw bracket; The ball screw bracket is fixed on the other side of the middle plate; and / or The transmission rod bracket comprises a first transmission rod bracket and a second transmission rod bracket; Preferably, the other side of the coupling is connected to the first worm; Preferably, the second worm, the third worm and the first worm wheel are fixed on one side of the middle plate by the first transmission rod bracket and the second transmission rod bracket supporting at the same time, and the groove for simultaneous support is preferably offset from the center point of the left and right side supports; and / or Preferably, the second worm gear and the third worm gear are respectively fixed to the first ball screw and the second ball screw by means of top screws.

5. The in-situ mechanical testing frame according to any one of claims 1 to 4, characterized in that: The sensing components include: a force sensor, a grating ruler, a sample fixture, an upper right block, an upper middle block, an upper left block, a slider and a slide rail; wherein, One side of the force sensor is connected to the upper right block, and the other side is connected to the sample fixture; The body of the grating ruler is connected to the upper middle block, the reading head of the grating ruler is connected to the upper left block, and is installed on the same side as the motor; and / or The slide rail is connected to the upper middle block, the slide block is connected to the upper left block, and the slide rail is connected to the slide block.

6. The in-situ mechanical testing frame according to claim 5, characterized in that: The number of the sample holders is at least 2, preferably 2 to 6; and / or The sample fixture comprises a fixture base and a fixture cover; Preferably, the clamp base and the clamp cover are provided with a slot and a pin respectively; and / or Preferably, the clamp cover is provided with a handle.

7. The in-situ mechanical testing frame according to any one of claims 1 to 6, characterized in that: The heat dissipation components include: a fan, a fan guide block, heat dissipation fins and an air outlet; wherein, The fan, the fan guide block, the heat dissipation fins and the air outlet are fixed on the motor bracket; and / or The heat generated by the operation of the motor is transferred to the motor bracket and the heat dissipation fins through the heat conduction component, and the wind blown out by the fan passes through the heat dissipation fins and takes away the heat after being straightened by the fan guide block, and the wind carrying the heat is discharged from the rack through the air outlet.

8. The in-situ mechanical testing frame according to any one of claims 1 to 7, characterized in that: The supporting components include: a left supporting plate, a right supporting plate, a rear supporting plate and a bottom supporting plate; wherein, The motor bracket is located on the middle plate; The middle plate is fixed to the rear support plate by screws; Preferably, the opening passes through the middle plate and the rear support plate, and the center of the opening is located at the projection of the midpoint of the line connecting each of the sample fixtures on the middle plate; and / or The left support plate, the right support plate, the rear support plate and the bottom support plate are connected respectively by screws.

9. An in-situ mechanical material detection device for a synchrotron radiation source, characterized in that: The in-situ mechanical material detection device comprises: The in-situ mechanical testing frame according to any one of claims 1 to 8; Controller; and Terminal control software; Preferably, The terminal control software exchanges signals with the controller to grasp the operating status of the in-situ mechanical material detection device, and sends control instructions to the controller in real time; The controller receives the signal from the terminal control software to control the motor, obtains the value of the sensor in real time and transmits the signal to the terminal control software; and / or The terminal is selected from one or more of the following: a mobile phone, a desktop computer, a laptop computer, preferably a desktop computer or a laptop computer, and most preferably a laptop computer.

10. An in-situ mechanical material detection method, characterized in that: The material testing method comprises: using the in-situ mechanical testing frame described in any one of claims 1 to 8 or the in-situ mechanical material testing device described in claim 9; Preferably, the in-situ mechanical material detection method comprises the following steps: 1) The in-situ mechanical testing frame is connected to the computer in the main control room through the controller, and communicates with the controller in real time through the terminal control software on the controller to obtain sensor signals; 2) The incident synchrotron radiation beam in the beam station penetrates the center of the sample held by the sample fixture, and excites each diffraction beam. Each diffraction beam passes through the preset opening on the in-situ mechanical detection frame without hindrance, and finally reaches the detector and records the state of the diffraction spot or diffraction ring.

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