Automatic Compensation and Protection System for Scanning of Large-Scale Metal Component Segregation Analyzer

Abstract

The present invention discloses a scanning automatic compensation and protection system for segregation degree analyzers of large-scale metal components, including a rotating assembly, a limit switch, an emergency stop circuit, and a reset spring; the rotating assembly includes a disk adapter plate, a rotating shaft, a fan-shaped adapter plate, a fixed adjustment block, and a movable adjustment block. The movable adjustment block is installed on the disk adapter plate, the limit switch is fixedly installed on the fan-shaped adapter plate, the movable adjustment block is movably connected to the limit switch, and the emergency stop circuit is connected to the limit switch; when the optical system rotates, it drives the movable adjustment block to rotate synchronously. The movable adjustment block toggles the limit switch. When the limit switch is toggled to a set angle, the limit switch triggers the circuit switching of the emergency stop circuit to urgently stop the scanning system. During the sample scanning process of the present invention, the optical system can adapt to the sample analysis surface and continuously and stably ground; when the optical system collides and squeezes with the sample, the system can urgently stop the scanning system to protect the optical system.

Description

Technical Field

[0001] The present invention relates to the technical field of segregation degree analysis, and in particular to a scanning automatic compensation and protection system for a segregation degree analyzer of large-scale metal components. Background Art

[0002] A segregation degree analyzer for large-scale metal components is an instrument for high-throughput in-situ statistical distribution analysis and characterization of large-sized metal components. By using in-situ statistical distribution analysis technology and high-throughput statistical mapping technology, it can be applied to the analysis of metal materials at the large-sized component level, and solves the world problem of analyzing the composition segregation degree and inclusions of large-sized metal components in aviation, high-speed rail, nuclear power, etc.

[0003] The segregation degree analyzer for large-scale metal components integrates processing, scanning, and characterization, and performs measurements during movement. The sample to be measured is fixed on the sample stage, and the surface of the sample is processed by a milling device, and then scanned and characterized. During scanning, the sample stage moves horizontally along the X-axis and Y-axis of the high-precision three-dimensional motion system, and the optical system moves vertically along the W-axis of the high-precision three-dimensional motion system. The sample is decomposed into multiple rows according to the row spacing, and scanned sequentially by moving the sample stage. In addition, a grounding ball is provided on the spark table of the optical system, which can rotate freely, and can ensure that the spark table is always in contact with the sample to be measured and continuously grounded stably. During scanning, the sample to be measured moves synchronously according to the designed path until the entire sample is scanned and analyzed completely.

[0004] The working principle of the optical system of the segregation degree analyzer for large-scale metal components is mainly that a highly stable digital light source releases a single spark through the spark table, scans and excites a large area of metal material, and the generated composite spectrum is incident on the concave grating of the spectroscopic device through the incident slit. The composite light is dispersed into a monochromatic spectrum, and then received by a photoelectric detection device and converted into an analog signal. The analog signal is converted into a digital signal through AD conversion to obtain the spectral intensity. After calculation by the built-in working curve, the spectral intensity is converted into the element concentration.

[0005] The accuracy and service life of the analysis results are important indicators for evaluating the performance of the segregation degree analyzer for large-scale metal components. Since this instrument measures during movement, there are many uncertain factors during the measurement process, which will affect the accuracy and stability of the analysis results to a lesser extent, or even cause damage to the instrument in severe cases. For example, when the instrument scans and analyzes a sample, the analysis surface of the sample, such as an inclined surface or a curved surface, is uneven. A common situation is that the analysis surface of the sample after being processed by a milling device is not a perfect plane and has deviations, which will cause a 5% - 10% fluctuation in the spectral intensity and affect the stability and accuracy of the analysis results. For another example, when there is a collision and extrusion between the optical system and the sample, it will affect the accuracy of the analysis results to a lesser extent, or in severe cases, it will cause the misalignment of the connection between the spark table and the light chamber in the optical system, resulting in the composite spectrum generated being unable to enter the light chamber, and the internal components of the light chamber will also be displaced. The instrument needs to be sent back to the factory for repair, which takes a long time and is costly. Summary of the Invention

[0006] The purpose of the present invention is to provide a scanning automatic compensation and protection system for a segregation degree analyzer of large-scale metal components, which solves the technical problems that the stability and accuracy of the analysis results of the segregation degree analyzer of large-scale metal components are affected due to the uneven analysis surface of the sample or the collision and extrusion between the optical system and the sample due to operation errors. During the sample scanning process, the optical system of this system can adapt to the analysis surface of the sample and be continuously and stably grounded. When there is a collision and extrusion between the optical system and the sample, this system can trigger an alarm and immediately stop the scanning system, thus playing a role in protecting the optical system, improving the analysis accuracy of the instrument, and extending the service life of the instrument.

[0007] To achieve the above purpose, the present invention provides the following solutions:

[0008] A scanning automatic compensation and protection system for a segregation degree analyzer of large-scale metal components, comprising: a rotating assembly, a limit switch, an emergency stop circuit, and a reset spring arranged between the optical system and the W-axis of the high-precision three-dimensional motion system;

[0009] The rotating assembly includes a disc adapter plate, a rotating shaft, a fan-shaped adapter plate, a fixed adjustment block, and a movable adjustment block. The disc adapter plate is fixedly connected to the light chamber of the optical system. One end of the rotating shaft is fixedly connected to the disc adapter plate. A bushing is arranged on the rotating shaft. The fan-shaped adapter plate is fixedly connected to the bushing. The fan-shaped adapter plate is connected to the W-axis of the high-precision three-dimensional motion system. The fixed adjustment block is installed on the bushing. The movable adjustment block is installed on the disc adapter plate and is located between the fan-shaped adapter plate and the disc adapter plate;

[0010] One end of the return spring is connected to the fixed adjustment block, and the other end is fixedly connected to the fan-shaped adapter plate, so as to restore the rotated optical system to its initial position;

[0011] The limit switch is fixedly mounted on the fan-shaped adapter plate, the movable adjustment block is movably connected to the limit switch, and the movable adjustment block is used to toggle the limit switch;

[0012] The emergency stop circuit is used to control the movement and stop of the scanning system, and the emergency stop circuit is connected to the limit switch;

[0013] When the optical system rotates, the disc adapter plate and the movable adjustment block are driven to rotate synchronously, and the movable adjustment block toggles the limit switch. Before the limit switch is toggled to the set angle, the scanning system moves normally. When the limit switch is toggled to the set angle, the limit switch triggers the circuit switching of the emergency stop circuit, and the scanning system is stopped urgently.

[0014] Furthermore, the emergency stop circuit includes a limit normally closed contact, a limit normally open contact and a buzzer. The circuits where the limit normally closed contact and the limit normally open contact are located are connected in parallel. The circuit where the limit normally closed contact is located is connected to the scanning system, and the circuit where the limit normally open contact is located is connected to the buzzer. When the limit switch is turned to the set angle, the limit switch triggers the circuit switching of the emergency stop circuit, the limit normally closed contact is disconnected, the limit normally open contact is closed, the scanning system stops suddenly, and the buzzer alarms.

[0015] Furthermore, the emergency stop circuit also includes a handwheel reset contact, and the handwheel reset contact is connected in parallel to both ends of the limit normally closed contact.

[0016] Furthermore, the handwheel reset contact is controlled by the reset button on the handwheel. Long pressing the reset button on the handwheel closes the handwheel reset contact, temporarily connecting the scanning system circuit to move the scanning system. Pressing the reset button and shaking the handwheel at the same time control the W-axis moving optical system of the high-precision three-dimensional motion system to raise the optical system to a safe height.

[0017] Furthermore, the fan-shaped adapter plate is fixedly connected to the rectangular adapter plate through a plurality of support columns, the rectangular adapter plate is connected to the W axis of the high-precision three-dimensional motion system, and the high-precision three-dimensional motion system controls the movement of the optical system in the W axis direction.

[0018] Furthermore, the optical system includes a light chamber and a spark stand, the light chamber and the spark stand are rigidly connected, and the spark stand is provided with a grounding ball for ensuring that the spark stand is continuously and stably grounded.

[0019] Furthermore, a first boss is provided on one end of the rotating shaft, a circular groove cooperating with the first boss is provided on the disc adapter plate, a second boss is provided on the sleeve, and the circular groove is fixedly connected to the first boss by bolts.

[0020] Furthermore, a threaded hole is provided on the disc adapter plate and a countersunk hole is provided on the first boss for adding bolts to fix the disc adapter plate and the first boss; a mounting hole is provided on the second boss for fixing the disc adapter plate to the shaft of the rotating shaft by bolts.

[0021] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: the automatic compensation and protection system for scanning of a large-scale metal component segregation analyzer provided by the present invention is provided with a rotating assembly, a limit switch, an emergency stop circuit and a reset spring between the optical system and the W axis of the high-precision three-dimensional motion system; the optical chamber of the optical system is fixedly connected to the rotating shaft through a disc adapter plate, and the optical system can rotate. When the optical system rotates, it drives the movable adjustment block in the rotating assembly to toggle the limit switch. Before the limit switch is toggled to the set angle, the scanning system moves normally. When the limit switch is toggled to the set angle, the contacts of the limit switch are actuated to realize circuit switching of the emergency stop circuit and emergency stop of the scanning system; the rotating shaft can enable the optical system to rotate freely. Therefore, when the analysis surface of the sample to be tested is uneven during the scanning process, the optical system can rotate slightly, automatically compensate, reduce errors, and improve the analysis accuracy of the instrument; when the optical system collides and squeezes the sample stage, the scanning system can be emergency stopped by the emergency stop circuit to prevent damage to the optical system and extend the service life of the instrument. After the optical system is raised to a safe height, a reset spring quickly and conveniently returns the rotating optical system to its original position. The automatic compensation and protection system for scanning large-scale metal component segregation analyzers designed in this invention boasts a compact structure, sophisticated design, and responsive response, ensuring stable and accurate analysis results and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure and installation of the optical system and the automatic scanning compensation and protection system provided by the present invention;

[0024] Figure 2aSchematic diagram of the scanning automatic compensation and protection system for the segregation degree analyzer of large-scale metal components provided by the present invention;

[0025] Figure 2b Partial structural schematic diagram of the rotating assembly provided by the present invention;

[0026] Figure 3a Side structural schematic diagram of the rotating shaft provided by the present invention;

[0027] Figure 3b Provided by the present invention Figure 3a Cross-sectional structure diagram of the rotating shaft in the A-A direction in

[0028] Figure 4 Schematic diagram of the emergency stop circuit provided by the present invention;

[0029] Figure 5 Overall structural schematic diagram of the segregation degree analyzer for large-scale metal components;

[0030] Figure 6a Scanning effect diagram of the outer surface of the tubular sample column;

[0031] Figure 6b Two-dimensional carbon element content distribution diagram of the outer surface of the tubular sample column;

[0032] Figure 6c Expanded diagram of the two-dimensional carbon element content distribution of the outer surface of the tubular sample column;

[0033] Explanation of reference numerals: 1. Light chamber; 2. Spark table; 3. Rotating assembly; 4. Reset spring; 5. Limit switch; 6. Rectangular adapter plate; 7. W axis; 8. Optical system; 9. Sample stage; 10. Sample to be measured; 11. X axis; 12. Y axis; 13. Milling device;

[0034] 3-1. Fan-shaped adapter plate; 3-2. Disc adapter plate; 3-3. Fixed adjustment block; 3-4. Movable adjustment block; 3-5. Bush; 3-6. Rotating shaft; 3-7. Locking nut; 3-8. Retaining ring; 3-9. Adjusting bolt; 3-10. Bearing;

[0035] 4-1. Handwheel reset contact; 4-2. Limit normally closed contact; 4-3. Limit normally open contact; 4-4. Buzzer;

[0036] 5-1. Driver. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] The object of the present invention is to provide a scanning automatic compensation and protection system for the segregation degree analyzer of large-scale metal components, enabling the optical system to adapt to the sample analysis surface during the scanning process, continuously and stably grounding the spark table, controlling the fluctuation of the spectral intensity within 5%, preventing the optical system from colliding, making the instrument analysis results stable and accurate, having a long service life, and improving the performance of the instrument.

[0039] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] As Figure 1-6c shown, the scanning automatic compensation and protection system for the segregation degree analyzer of large-scale metal components provided by the present invention includes: a rotating assembly 3, a limit switch 5, an emergency stop circuit, and a reset spring 4 arranged between the optical system 8 and the W axis 7 of the high-precision three-dimensional motion system;

[0041] As Figure 2a shown, the rotating assembly 3 includes a disc adapter plate 3-2, a rotating shaft 3-6, a fan-shaped adapter plate 3-1, a fixed adjustment block 3-3, and a movable adjustment block 3-4. The disc adapter plate 3-2 is fixedly connected to the light chamber 1 of the optical system 8. One end of the rotating shaft 3-6 is fixedly connected to the disc adapter plate 3-2. A shaft sleeve 3-5 is arranged on the rotating shaft 3-6. The fan-shaped adapter plate 3-1 is fixedly connected to the shaft sleeve 3-5. The fan-shaped adapter plate 3-1 is connected to the W axis 7 of the high-precision three-dimensional motion system. The fixed adjustment block 3-3 is installed on the shaft sleeve 3-5. The movable adjustment block 3-4 is installed on the disc adapter plate 3-2 and is located between the fan-shaped adapter plate 3-1 and the disc adapter plate 3-2. Among them, the fan-shaped adapter plate 3-1 is fixedly connected to the shaft sleeve 3-5 of the rotating shaft 3-6, and both are fixedly immovable. The rotating shaft 3-6 can rotate freely. The light chamber 1 of the optical system 8 is fixedly connected to the rotating shaft 3-6 through the disc adapter plate 3-2. Therefore, when the optical system 8 is subjected to an external force, it can rotate flexibly.

[0042] Exemplarily, one end of the reset spring 4 is connected to the fixed adjustment block 3-3, and the other end is fixedly connected to the fan-shaped adapter plate 3-1, and is used to restore the rotated optical system 8 to the initial position. When the optical system 8 rotates, it drives the disk adapter plate 3-2 and the movable adjustment block 3-4 fixedly connected to the disk adapter plate 3-2 to rotate synchronously. One end of the reset spring 4 is connected to the fan-shaped adapter plate 3-1 and remains stationary, while the other end is driven by the movable adjustment block 3-4, and the reset spring 4 is stretched and deformed. When the optical system 8 rises to a safe height, the external force disappears, and the stretched and deformed reset spring 4 returns to its original state. Using the elasticity of the spring, the optical system is automatically positioned correctly.

[0043] The limit switch 5 is fixedly installed on the fan-shaped adapter plate 3-1, the movable adjustment block 3-4 is movably connected to the limit switch 5, and the movable adjustment block 3-4 is used to toggle the limit switch 5;

[0044] The emergency stop circuit is used to control the movement and stop of the scanning system, and the emergency stop circuit is connected to the limit switch 5;

[0045] When the optical system rotates, it drives the disk adapter plate 3-2 and the movable adjustment block 3-4 to rotate synchronously. The movable adjustment block 3-4 toggles the limit switch 5. Before the limit switch 5 is toggled to the set angle, the scanning system moves normally. When the limit switch 5 is toggled to the set angle, the limit switch 5 triggers the circuit switching of the emergency stop circuit to urgently stop the scanning system.

[0046] Among them, exemplarily, as shown in Figure 3, the rotating shaft 3-6 is composed of a shaft, a shaft sleeve 3-5 and two sets of bearings 3-10. The shaft is inside, the shaft sleeve 3-5 is outside, and the bearings 3-10 are installed in the middle.

[0047] Exemplarily, Figure 1 In it, the fan-shaped adapter plate 3-1 is fixedly connected to the rectangular adapter plate 6 through three support columns. The rectangular adapter plate 6 is connected to the W axis 7 of the high-precision three-dimensional motion system, and the high-precision three-dimensional motion system controls the movement of the optical system 8 in the direction of the W axis 7.

[0048] Exemplarily, as Figure 3a and Figure 3bAs shown, a first boss is provided on one end of the rotating shaft 3-6, a circular groove cooperating with the first boss is provided on the disc adapter plate 3-2, a second boss is provided on the sleeve 3-5, and the circular groove is fixedly connected to the first boss by bolts, wherein the circular groove, the first boss on the rotating shaft, and the second boss of the sleeve are all provided with circular holes at corresponding positions for passing the bolts. The disc adapter plate 3-2 can rotate concentrically with the rotating shaft 3-6. A circular hole concentric with the sleeve 3-5 is provided on the fan-shaped adapter plate 3-1, which is fixedly connected to the second boss of the sleeve 3-5, and both are fixed. In addition, in order to prevent the bearing 3-10 from falling off during operation, a pressure ring 3-8 and a locking nut 3-7 are added to the top of the sleeve 3-5 for fixing.

[0049] A threaded hole is provided on the disc adapter plate 3-2 and a countersunk hole is provided on the first boss for adding bolts to fix the disc adapter plate 3-2 and the first boss; a mounting hole is provided on the second boss for fixing the disc adapter plate 3-2 and the shaft of the rotating shaft 3-6 by bolts.

[0050] In the present application, the disc adapter plate 3-2 is fixedly connected to the first boss of the rotating shaft 3-6. The fixed adjustment block 3-3 is fixedly connected to the second boss of the sleeve 3-5. The fixed adjustment block 3-3 is also provided with an adjustment bolt 3-9 for limiting the rotation direction of the movable adjustment block 3-4 and adjusting the angle of the spark stand 2. The movable adjustment block 3-4 is fixedly connected to the disc adapter plate 3-2. The rotating shaft 3-6 allows the optical system 8 to rotate freely. Therefore, when the analysis surface of the sample to be tested is uneven during the scanning process, the optical system 8 can rotate slightly to automatically compensate and reduce errors. When the spark stand 2 of the optical system 8 collides and squeezes with the sample to be tested 10 on the sample stage 9, the spark stand 2 is blocked by the sample to be tested and cannot continue to move downward. The light chamber 1 continues to move downward without obstruction, and the optical system 8 rotates, avoiding deformation caused by hard contact between the spark stand 2 and the sample to be tested 10. When the optical system 8 rotates, it will drive the disc adapter plate 3-2 and the movable adjustment block 3-4 fixedly connected to the disc adapter plate 3-2 to rotate synchronously, and the movable adjustment block 3-4 moves, thereby triggering subsequent actions.

[0051] Among them, Figure 2bAs shown, a schematic diagram of the assembly structure of the fixed adjustment block 3-3 and the limit switch 5 is shown. The adjustment bolt 3-9 on the fixed adjustment block 3-3 is specifically used to block the movable adjustment block from rotating counterclockwise in the opposite direction to prevent the light chamber 1 from rotating in the opposite direction. If there is no fixed adjustment block 3-3 to block it, the light chamber 1 will rotate in the opposite direction, and the spark stand 2 will move downward, and will also collide and squeeze with the sample to be tested 10. In addition, the angle between the spark stand 2 and the sample to be tested 10 can be adjusted by adjusting the bolt 3-9. The movable adjustment block 3-4 is close to the actuator 5-1 of the limit switch 5. Therefore, when the movable adjustment block 3-4 moves, it will toggle the actuator 5-1 of the limit switch 5, thereby triggering subsequent actions.

[0052] like Figure 4 As shown, the emergency stop circuit includes a limit normally closed contact 4-2, a limit normally open contact 4-3, and a buzzer 4-4. The circuits containing the limit normally closed contact 4-2 and the limit normally open contact 4-3 are connected in parallel. The circuit containing the limit normally closed contact 4-2 is connected to the scanning system, and the circuit containing the limit normally open contact 4-3 is connected to the buzzer 4-4. When the limit normally closed contact 4-2 is closed, the scanning system is in a normal movable state. When the limit normally closed contact 4-2 is opened, the scanning system is powered off and stopped. When the limit normally open contact 4-3 is closed, the buzzer 4-4 circuit is connected, and an audible alarm sounds. When the limit switch 5 is toggled to the set angle, the limit switch 5 triggers the circuit switching of the emergency stop circuit, the limit normally closed contact 4-2 is opened, the limit normally open contact 4-3 is closed, the scanning system stops suddenly, and the buzzer 4-4 sounds an alarm.

[0053] The emergency stop circuit also includes a handwheel reset contact 4-1, connected in parallel to both ends of the limit normally closed contact. This contact 4-1 is controlled by a reset button on the handwheel. Pressing and holding the reset button closes the contact, temporarily energizing the scanning system circuit and enabling movement. Pressing the reset button while turning the handwheel controls the high-precision 3D motion system's W-axis 7 to move the optical system 8, raising it to a safe height.

[0054] For example, the limit switch 5 is a mechanical switch used to control the travel and limit protection of the optical system. Compared to electronic switches, it has excellent temperature and humidity resistance, is not affected by electromagnetic interference in the application environment and may cause malfunction, and has strong applicability. When the optical system 8 rotates, it drives the movable adjustment block 3-4 in the rotating assembly 3 to toggle the limit switch 5. Before the limit switch 5 is toggled to the set angle, the scanning system operates normally. When the limit switch 5 is toggled to the set angle, the contacts of the limit switch 5 operate, switching the emergency stop circuit, and bringing the scanning system to an emergency stop.

[0055] Specifically, the optical system 8 includes a light chamber 1 and a spark stand 2 , wherein the light chamber 1 and the spark stand 2 are rigidly connected, and a grounding ball is provided on the spark stand 2 to ensure that the spark stand 2 is continuously and stably grounded.

[0056] The working principle of the large-scale metal component segregation analyzer scanning automatic compensation and protection system is as follows:

[0057] S1. Optical system rotation:

[0058] When the analysis surface of the sample to be tested is uneven, the optical system can adapt to the analysis surface by micro-rotation during scanning, keeping the distance between the electrode in the spark table and the sample analysis surface within the allowable error range.

[0059] If the spark stand collides with or squeezes the sample, for example if the coordinates of the spark stand's fixed position are incorrectly set, the high-precision 3D motion system's W-axis will lower the spark stand until the distance from the sample reaches the set value, but it will continue to lower the spark stand, squeezing the sample. At this point, the spark stand is blocked by the sample and cannot move downward, while the optical chamber continues to move downward unimpeded. A rotating assembly integrated on the back of the optical chamber rotates the optical system, preventing deformation caused by hard contact between the spark stand and the sample.

[0060] S2, Optical protection system action:

[0061] When the optical system rotates to the set angle, the system's subsequent protective actions are triggered. As the optical chamber rotates, it also drives the disc adapter plate in the rotating assembly. This movement also causes the movable adjustment block fixed to the disc adapter plate to move, stretching and deforming the return spring. Simultaneously, the movable adjustment block toggles the limit switch. When the set angle is reached, the limit switch contacts activate, switching the emergency stop circuit. The normally closed limit contacts in the emergency stop circuit open, while the normally open limit contacts close. The scanning system stops immediately, and a buzzer sounds an alarm.

[0062] S3, optical system reset:

[0063] After the optical system has adaptively rotated slightly, the scanning system circuit is in normal operation. The optical system is raised to a safe height, the external force is removed, and the reset spring returns to its original state. A pulling force is applied to the movable adjustment block in the rotating assembly. At the same time, the movable adjustment block drives the disc adapter plate in the rotating assembly, and the disc adapter plate drives the optical system back to its original position.

[0064] When the optical system collides or is squeezed, such as when the coordinates of the spark stand's fixed-point position are incorrectly set, causing a collision or squeezing with the sample, and the scanning system is locked by the emergency stop, the coordinates of the spark stand's fixed-point position must be corrected first. Then, press and hold the reset button on the handwheel to close the handwheel reset contacts, temporarily connecting the scanning system circuit so that the scanning system can move. At the same time, shake the handwheel to control the W-axis of the high-precision three-dimensional motion system to raise the optical system. When it is raised to a safe height, the external force is removed, the reset spring returns to its original state, and a pulling force is applied to the movable adjustment block in the rotating assembly. At the same time, the movable adjustment block drives the disc adapter plate in the rotating assembly, which drives the optical system back to its original position. After completing the above actions, the emergency stop circuit is restored to its initial state, and the scanning system lock is released.

[0065] In specific embodiments, the unevenness of the sample analysis surface includes a variety of situations. For example, when the milling device of the large-scale metal component segregation analyzer processes the sample surface, due to the large size of the sample to be tested and the long processing time required, the tool will be subject to a certain degree of wear during the processing process. The processed sample analysis surface is not a perfect plane and has deviations. During the scanning and analysis process of the sample surface, the spark stand actually performs a motion that continuously fluctuates with a small amplitude along the sample surface. For example, when the sample to be tested is a tubular sample, the sample analysis surface is an arc surface. The cross-section of the tubular sample may be circular or elliptical, with different curvatures, and may be non-concentric after rotation. Therefore, during the scanning and analysis process, the spark stand and the sample may be squeezed or separated from the sample analysis surface. The automatic compensation and protection system for scanning the large-scale metal component segregation analyzer designed by the present invention is designed to solve this problem.

[0066] Example 1

[0067] This embodiment uses tubular samples as the analysis object and performs scanning analysis on them. During the scanning analysis, the spark stand needs to be rotated downward by a certain angle to avoid the spark stand from being separated from the sample analysis surface. Figure 5 The figure shows the overall structure of the large-scale metal component segregation analyzer, which includes a milling device 13, a sample stage 9, a high-precision three-dimensional motion system (X axis 11, Y axis 12, W axis 7), an optical system 8, etc., integrating processing, scanning, and characterization. The analysis results of the tubular sample are shown in Figures 6a-6c .

[0068] (1) During processing, unlike non-tubular samples, the tubular sample must first be fixed on a rotating table, and then the rotating table must be fixed on the sample stage. The surface of the tubular sample is processed using a milling device, and then scanned and characterized.

[0069] (2) During scanning, the tubular sample is also decomposed into multiple rows according to the row spacing. The rotary table is used to rotate the sample to sequentially scan and analyze the surface of the tubular sample. The scanning effect is shown in Figure 6a .

[0070] (3) Analyze the characterization results, Figure 6b is the two-dimensional carbon element content distribution map of the outer surface of the cylindrical surface of the tubular sample, Figure 6c is the unfolded two-dimensional carbon element content distribution map of the outer surface of the cylindrical surface of the tubular sample. It can be seen that the scanning automatic compensation and protection system of the large-scale metal component segregation analyzer designed by the present invention can adapt to the arc surface and achieve full-coverage and stable scanning analysis of the tubular sample.

[0071] Example Two

[0072] In this example, a general planar sample is used as the analysis object and scanned and analyzed. During scanning and analysis, the spark table needs to be rotated downward by a certain angle to avoid the situation where the spark table detaches from the sample analysis surface as much as possible.

[0073] (1) During processing, the sample is directly fixed on the sample table, and the milling device uses a tool with obvious wear to process the surface of the sample, resulting in a slightly uneven sample analysis surface, and then scanning and characterization are carried out.

[0074] (2) During scanning, the sample is decomposed into multiple rows according to the row spacing, and the sample table is moved to sequentially scan and analyze.

[0075] (3) Analyze the characterization results and find that the spectral intensity of carbon elements in the sample originally fluctuated in the range of 30010 ± 1506. After adding the scanning automatic compensation and protection system of the large-scale metal component segregation analyzer, it can be stabilized in the range of 30013 ± 762. It can be seen that the scanning automatic compensation and protection system of the large-scale metal component segregation analyzer designed by the present invention can adapt to the slightly uneven situation of the analysis plane and improve the stability and accuracy of the analysis results.

[0076] Example Three

[0077] This example will demonstrate how the scanning automatic compensation and protection system of the large-scale metal component segregation analyzer works when the coordinate settings of the fixed point position of the spark table are incorrect.

[0078] S1. Rotation of the optical system:

[0079] If the fixed position of the spark table is wrongly set from (x, y, w) to (x, y, w - 10), when the W axis of the high-precision three-dimensional motion system moves the spark table down to the coordinate position (x, y, w), it will still drive the spark table to continue to descend, resulting in a collision and extrusion between the spark table and the sample to be measured. At this time, the spark table is blocked by the sample to be measured and cannot move downward, while the optical chamber moves downward without obstruction, and the optical system rotates.

[0080] S2. The optical protection system operates:

[0081] The rotation of the optical system triggers the operation of the optical protection system. While the optical chamber rotates, it will drive the disk adapter plate in the rotating assembly to rotate. The movable adjustment block fixedly installed on the disk adapter plate also moves accordingly, and the return spring is stretched and deformed. At the same time, the movable adjustment block toggles the limit switch. Since the set angle is reached, the normally closed limit contact in the emergency stop circuit disconnects, and the normally open limit contact closes, the scanning system stops urgently, and the buzzer sounds an alarm.

[0082] S3. The optical system is reset:

[0083] After correcting the coordinates of the fixed position of the spark table to (x, y, w), long-press the reset button on the handwheel to close the reset contact of the handwheel, temporarily connect the scanning system circuit, and at the same time shake the handwheel to control the W axis of the high-precision three-dimensional motion system to raise the optical system. After raising it to a safe height, the external force is removed, the return spring returns to its original state, and applies a pulling force to the movable adjustment block in the rotating assembly. At the same time, the movable adjustment block drives the disk adapter plate in the rotating assembly, and the disk adapter plate drives the optical system back to its original position. After completing the above actions, the emergency stop circuit also returns to its initial state, and the lock of the scanning system is released.

[0084] In summary, for the scanning automatic compensation and protection system of the large-scale metal component segregation degree analyzer provided by the present invention, when the analysis surface of the sample scanned by the large-scale metal component segregation degree analyzer is uneven, it can be automatically compensated to improve the analysis accuracy of the instrument; when the optical system of the large-scale metal component segregation degree analyzer collides and squeezes with the sample, it can immediately alarm and stop the scanning system urgently to prevent the optical system from being damaged and extend the service life of the instrument. And after the optical system is raised to a safe height, the system can also restore the rotating optical system to its original position, which is convenient and fast. The scanning automatic compensation and protection system of the large-scale metal component segregation degree analyzer designed by the present invention has a compact structure, delicate design, and sensitive reaction, making the analysis result of the large-scale metal component segregation degree analyzer stable, accurate, and with a long service life.

[0085] In this article, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A scanning automatic compensation and protection system for the segregation degree analyzer of large-scale metal components, characterized in that Comprising: A rotating assembly, a limit switch, an emergency stop circuit and a reset spring disposed between the optical system and the W-axis of the high-precision three-dimensional motion system; The rotating assembly includes a disc adapter plate, a rotating shaft, a fan-shaped adapter plate, a fixed adjustment block and a movable adjustment block. The disc adapter plate is fixedly connected to the light chamber of the optical system. One end of the rotating shaft is fixedly connected to the disc adapter plate. A bushing is provided on the rotating shaft. The fan-shaped adapter plate is fixedly connected to the bushing. The fan-shaped adapter plate is connected to the W-axis of the high-precision three-dimensional motion system. The fixed adjustment block is installed on the bushing. The movable adjustment block is installed on the disc adapter plate and is located between the fan-shaped adapter plate and the disc adapter plate; One end of the reset spring is connected to the fixed adjustment block, and the other end is fixedly connected to the fan-shaped adapter plate for restoring the rotated optical system to the initial position; The limit switch is fixedly installed on the fan-shaped adapter plate. The movable adjustment block is movably connected to the limit switch. The movable adjustment block is used to toggle the limit switch; The emergency stop circuit is used to control the movement and stop of the scanning system. The emergency stop circuit is connected to the limit switch; When the optical system rotates, it drives the disc adapter plate and the movable adjustment block to rotate synchronously. The movable adjustment block toggles the limit switch. Before the limit switch is toggled to the set angle, the scanning system moves normally. When the limit switch is toggled to the set angle, the limit switch triggers the circuit switching of the emergency stop circuit to urgently stop the scanning system; The emergency stop circuit includes a limit normally closed contact, a limit normally open contact and a buzzer. The circuits where the limit normally closed contact and the limit normally open contact are located are respectively in parallel. The circuit where the limit normally closed contact is located is connected to the scanning system. The circuit where the limit normally open contact is located is connected to the buzzer; when the limit switch is toggled to the set angle, the limit switch triggers the circuit switching of the emergency stop circuit. The limit normally closed contact disconnects, and the limit normally open contact closes. The scanning system stops urgently and the buzzer alarms; The emergency stop circuit further includes a handwheel reset contact, and the handwheel reset contact is connected in parallel at both ends of the limit normally closed contact; The handwheel reset contact is controlled by a reset button on the handwheel. Long pressing the reset button on the handwheel closes the handwheel reset contact, temporarily connecting the scanning system circuit to make the scanning system move. While pressing the reset button and shaking the handwheel, control the W-axis of the high-precision three-dimensional motion system to move the optical system and raise the optical system to a safe height.

2. The scanning automatic compensation and protection system for the segregation degree analyzer of large-scale metal components according to claim 1, characterized in that The fan-shaped adapter plate is fixedly connected to the rectangular adapter plate through a plurality of support columns. The rectangular adapter plate is connected to the W-axis of the high-precision three-dimensional motion system. The high-precision three-dimensional motion system controls the movement of the optical system in the W-axis direction.

3. The large-scale metal component segregation degree analyzer scanning automatic compensation and protection system according to claim 1, characterized in that The optical system includes a light chamber and a spark table. The light chamber and the spark table are rigidly connected. The spark table is provided with a grounding ball for ensuring continuous and stable grounding of the spark table.

4. The scanning automatic compensation and protection system for the segregation degree analyzer of large-scale metal components according to claim 1, characterized in that A first boss is provided on one end of the rotating shaft, a circular groove matching the first boss is provided on the disc adapter plate, a second boss is provided on the sleeve, and the circular groove is fixedly connected to the first boss by bolts.

5. The scanning automatic compensation and protection system for the segregation degree analyzer of large-scale metal components according to claim 4, characterized in that, A threaded hole is provided on the disc adapter plate, and a countersunk hole is provided on the first boss for adding bolts to fix the disc adapter plate and the first boss; a mounting hole is provided on the second boss for fixing the disc adapter plate to the shaft of the rotating shaft by bolts.

Images