Automatic calibration system of X-ray fluorescence spectrometer

Abstract

The utility model discloses an automatic calibration system of an X-ray fluorescence spectrometer, which comprises a positioning plate, and positioning blocks are welded at the left and right positions of the front and rear ends of the positioning plate; a set of threaded transmission mechanism is installed on the right side of the top of the positioning plate, a threaded rod arranged at one end of the interior of the threaded transmission mechanism is in threaded connection with the interior of a movable plate, and the bottom of the movable plate is slidably arranged in a sliding groove formed in the bottom of the positioning plate; a group of carrier plates convenient for accommodating samples are placed at the end part of the left end of the movable plate, and the bottom position of the plectrum block is adjusted in the carrier plates through an adjusting mechanism. According to the automatic calibration system of the X-ray fluorescence spectrometer, the adjusting mechanism is arranged, the shifting piece block can move through the connecting plate through the matched arrangement of the adjusting mechanism, and the purposes that matched groove bodies do not need to be formed for matched use, and the matching efficiency is high are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of X-ray fluorescence spectrometers, specifically to an automatic calibration system for X-ray fluorescence spectrometers. Background Technology

[0002] An X-ray fluorescence spectrometer consists of an excitation source and a detection system. An X-ray tube generates incident X-rays to excite the sample being tested. Each element in the excited sample emits secondary X-rays, and the secondary X-rays emitted by different elements have specific energy or wavelength characteristics. The detection system measures the energy and quantity of these emitted secondary X-rays. In X-ray fluorescence spectroscopy analysis, after the spectrometer has been working for a long time, phenomena such as channel drift and intensity changes may occur. Therefore, it is necessary to calibrate the spectrometer channels. Thus, an automatic calibration system is required for auxiliary use.

[0003] When using an automatic calibration device, when the carrier plate containing the sample is moved, the drive mechanism will apply a force to the carrier plate during the initial and stopping phases of the movement. At this time, the carrier plate will shift, which may cause the carrier plate and the sample inside to fall off.

[0004] To overcome the problem of the carrier plate shifting during use of the above-mentioned automatic calibration device, the prior art can be referred to (the automatic calibration device for X-ray fluorescence spectroscopy analysis disclosed in CN218180724U, with the publication date of 2022-12-30). After the automatic calibration device is replaced, the carrier plate is placed in the slot, and the limiting block on the outside of the carrier plate can mate with the limiting groove above the movable plate to achieve the purpose of positioning and fixing the carrier plate.

[0005] Although the device can achieve the purpose of limiting by the docking of the limiting block and the limiting groove during operation, the lever set on the outside of the carrier plate is still set on the outside. When used inside the X-ray fluorescence spectrometer, a matching groove needs to be opened to cooperate, which results in the low matching efficiency of the automatic calibration device.

[0006] Therefore, we proposed an automatic calibration system for X-ray fluorescence spectrometers that can effectively solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide an automatic calibration system for an X-ray fluorescence spectrometer, which solves the problem mentioned in the background art. In the current automatic calibration system on the market, the limiting block and the limiting groove are used to achieve the limiting purpose during operation. However, the lever set on the outside of the carrier plate is still set on the outside. When used inside the X-ray fluorescence spectrometer, a matching groove needs to be opened to cooperate, which leads to the problem of low matching efficiency of the automatic calibration device.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic calibration system for an X-ray fluorescence spectrometer, comprising a positioning plate, wherein positioning blocks are welded to the left and right positions at both ends of the positioning plate;

[0009] Also includes:

[0010] A set of threaded transmission mechanisms is installed on the top right side of the positioning plate. The threaded rod at one end of the threaded transmission mechanism is threadedly connected to the inside of the movable plate. The bottom of the movable plate is slidably positioned inside the groove opened at the bottom of the positioning plate.

[0011] A set of sample-accommodating carrier plates is placed at the left end of the movable plate. A set of lever blocks is slidably arranged at both the front and rear ends of the carrier plates. The bottom position of the lever blocks can be adjusted inside the carrier plates through an adjustment mechanism.

[0012] As a preferred technical solution of this application, a set of scale strips are fixed at the front and rear ends of the positioning plate, and the internal part of the threaded transmission mechanism includes a set of motors as driving force. The output end of the motor is fixed at the end of the threaded rod, and the movable plate forms a sliding structure between the threaded rod and the inside of the slide groove.

[0013] As a preferred technical solution of this application, the positioning block is made of metal, the positioning block has a threaded opening inside, and the positioning block is fixed to the threaded mounting position of the spectrometer by bolts.

[0014] As a preferred technical solution of this application, the adjustment mechanism includes a bonding plate fixedly connected to the bottom position of the carrier plate, a set of threaded rotating blocks rotatably connected to the bottom position of the bonding plate, the outer side of the threaded rotating blocks being threadedly connected to the inside of the connecting plate, a set of connecting plates being fixed at both the front and rear ends of the connecting plate, and the top position of the connecting plate being fixed to the bottom position of the paddle block.

[0015] As a preferred technical solution of this application, the shape of the paddle block is "L" shaped, and the paddle block forms a sliding structure between the interior of the connecting plate and the carrier plate. The paddle blocks are symmetrically distributed in two sets about the vertical center line of the carrier plate.

[0016] As a preferred technical solution of this application, a set of movable rods is fixed at both ends of the connecting plate, and a set of piston blocks is fixed at the top of the movable rods, with the outer side of the piston blocks attached to the bottom inner side of the suction cup.

[0017] As a preferred technical solution of this application, the top of the suction cup extends out of the top and bottom of the adhesive plate, the top of the suction cup is attached to the bottom of the movable plate, the outer side of the piston block is tightly attached to the inner side of the suction cup, and the piston block forms a negative pressure adsorption structure with the bottom of the movable plate through the suction cup.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: The automatic calibration system of this X-ray fluorescence spectrometer is equipped with an adjustment mechanism. Through the coordination of the adjustment mechanism, the paddle block can be moved through the connecting plate, allowing the paddle block to retract into the interior of the carrier plate. This eliminates the need for a matching groove, achieving a higher matching efficiency. The specific details are as follows:

[0019] 1. A carrier plate is set up. By rotating the threaded rotating block set at the bottom of the bonding plate, the connecting plate threaded to the outer side of the threaded rotating block is moved. This allows the two ends of the connecting plate to move, so that one end of the connecting plate drives the lever block to adjust its position inside the carrier plate. This achieves the goal of high matching efficiency without the need to open matching grooves.

[0020] Furthermore, by moving the connecting plate, the moving rod fixed at the top of the connecting plate moves, and the piston block fixed at the top of the moving rod slides inside the suction cup, thereby generating negative pressure to adhere to the bottom of the movable plate, which facilitates the replacement of the carrier plate.

[0021] 2. A position sensor is installed, which, in conjunction with a threaded transmission mechanism, allows the threaded rod of the threaded transmission mechanism to drive the movable plate to adjust its position within the slide groove, thereby completing the position calibration process;

[0022] Furthermore, a scale bar is set up. Through the coordinated setting of the scale bar, the movement of the movable plate will be recorded and processed through the scale bar. The displacement distance of the movable plate can be monitored by the coordination of the position sensor and the scale bar. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0025] Figure 3 This is a schematic diagram of the main structure of the carrier plate of this utility model;

[0026] Figure 4 This is a bottom view cross-sectional structural diagram of the carrier plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the main structure of the connecting plate of this utility model;

[0028] Figure 6 This is a schematic diagram of the extended state of the paddle block of this utility model.

[0029] In the diagram: 1. Positioning plate; 2. Positioning block; 3. Threaded transmission mechanism; 4. Movable plate; 5. Slide groove; 6. Position sensor; 7. Scale bar; 8. Carrier plate; 9. Adhesive plate; 10. Threaded rotating block; 11. Connecting plate; 12. Moving rod; 13. Piston block; 14. Suction cup; 15. Connecting plate; 16. Paddle block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-6 The present invention provides the following technical solution:

[0032] Example 1: To address the issue that current automatic calibration systems on the market achieve positioning through the docking of limit blocks and limit slots, but the levers on the outer side of the carrier plate 8 remain external, requiring a matching slot for use inside an X-ray fluorescence spectrometer, resulting in low matching efficiency, please refer to the attached... Figure 1 -Appendix Figure 6A set of sample-accommodating carrier plates 8 is placed at the left end of the movable plate 4. A set of lever blocks 16 are slidably mounted at both the front and rear ends of the carrier plate 8. The bottom position of the lever blocks 16 is adjustable within the carrier plate 8 via an adjustment mechanism. The adjustment mechanism includes an adhesive plate 9 fixedly connected to the bottom of the carrier plate 8. A set of threaded rotating blocks 10 is rotatably connected to the bottom of the adhesive plate 9. The outer side of the threaded rotating blocks 10 is threadedly connected to the interior of a connecting plate 11. A set of connecting plates 15 are fixed at both the front and rear ends of the connecting plate 11. The top of the connecting plate 15 is fixed to the bottom of the lever blocks 16. The lever blocks 16 are L-shaped and form a sliding structure between the lever blocks 16 and the interior of the carrier plate 8 via the connecting plates 15. Two sets of lever blocks 16 are symmetrically distributed about the vertical center line of the carrier plate 8. In addition, during the adsorption and fixation process of the carrier plate 8, the connecting plate 11 descends, causing the connecting plates 15 fixed at the front and rear ends of the connecting plate 11 to slide the lever block 16 inside the carrier plate 8, so that the outer side of the lever block 16 retracts back to the inner position of the carrier plate 8. When used inside the X-ray fluorescence spectrometer, there is no need to open a matching groove for use, and the matching efficiency is high.

[0033] Example 2: To facilitate the limiting and fixing of the carrier plate 8, please refer to the attached document. Figure 2 -Appendix Figure 6 A set of movable rods 12 are fixed at both ends of the connecting plate 11. A set of piston blocks 13 are fixed at the top of the movable rods 12. The outer side of the piston blocks 13 is attached to the bottom inner side of the suction cup 14. The top of the suction cup 14 extends out from the top and bottom of the adhesive plate 9. The top of the suction cup 14 is attached to the bottom of the movable plate 4. The outer side of the piston blocks 13 is tightly attached to the inside of the suction cup 14. The piston blocks 13, together with the bottom of the movable plate 4, form a negative pressure adsorption structure. First, when using the device, the positioning block 2 is installed at the designated position of the spectrometer by bolts. When using the device, after the sample is placed inside the carrier plate 8, the carrier plate 8 is placed into the groove opened inside the movable plate 4, and the top position of the suction cup 14 is in contact with the bottom position of the movable plate 4. By rotating the threaded rotating block 10 connected to the bottom of the bonding plate 9, the connecting plate 11 threaded to the outside of the threaded rotating block 10 will move. At this time, the connecting plate 11 will drive the moving rod 12 to move, causing the piston block 13 fixed at the top of the moving rod 12 to slide inside the suction cup 14. Since the top of the suction cup 14 is in contact with the bottom of the movable plate 4, the negative pressure adsorption effect makes the suction cup 14 stably fixed at the bottom position of the movable plate 4.

[0034] Example 3: For calibration processing, please refer to the appendix. Figure 1 and attached Figure 2 The system includes a positioning plate 1, with positioning blocks 2 welded to the left and right positions at both ends of the positioning plate 1; it also includes a set of threaded transmission mechanisms 3 installed on the right side of the top position of the positioning plate 1, with a threaded rod at one end of the threaded transmission mechanism 3 threadedly connected to the inside of a movable plate 4, and the bottom position of the movable plate 4 slidingly positioned inside a groove 5 opened at the bottom of the positioning plate 1; a set of scale strips 7 are fixed at both ends of the positioning plate 1; the threaded transmission mechanism 3 includes a motor as the driving force, with the output end of the motor fixed to the end of the threaded rod; the movable plate 4 forms a sliding structure between the threaded rod and the inside of the groove 5. The positioning blocks 2 are made of metal, with threaded openings inside, and are fixed to the threaded mounting position of the spectrometer by bolts.

[0035] During the automatic calibration process, the motor included in the threaded transmission mechanism 3 is activated, causing the output end of the motor to drive the threaded rod to rotate, so that the threaded connecting movable plate 4 slides inside the slide groove 5 and is calibrated. During the calibration process, the position sensor 6 moves with the movable plate 4, and at the same time, the position sensor 6, together with the scale bar 7 above the positioning plate 1, monitors the displacement distance of the movable plate 4, thereby completing the entire working process of the automatic calibration device for X-ray fluorescence spectroscopy analysis.

[0036] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic calibration system for an X-ray fluorescence spectrometer, comprising a positioning plate (1), wherein positioning blocks (2) are welded to the left and right positions at the front and rear ends of the positioning plate (1); Its features are, Also includes: A set of threaded transmission mechanism (3) is installed on the right side of the top position of the positioning plate (1). The threaded rod of the threaded transmission mechanism (3) is threadedly connected to the inside of the movable plate (4). The bottom position of the movable plate (4) is slidably set inside the groove (5) opened at the bottom position of the positioning plate (1). A set of carrier plates (8) for accommodating samples is placed at the left end of the movable plate (4). A set of paddle blocks (16) are slidably arranged at both the front and rear ends of the carrier plate (8). The bottom position of the paddle blocks (16) is adjusted inside the carrier plate (8) by an adjustment mechanism.

2. The automatic calibration system for an X-ray fluorescence spectrometer according to claim 1, characterized in that: The positioning plate (1) has a set of scale strips (7) fixed at both ends. The threaded transmission mechanism (3) includes a set of motors as driving force. The output end of the motor is fixed at the end of the threaded rod. The movable plate (4) forms a sliding structure between the threaded rod and the interior of the slide groove (5).

3. The automatic calibration system for an X-ray fluorescence spectrometer according to claim 1, characterized in that: The positioning block (2) is made of metal, and a threaded opening is provided inside the positioning block (2). The positioning block (2) is fixed to the threaded mounting position of the spectrometer by bolts.

4. The automatic calibration system for an X-ray fluorescence spectrometer according to claim 1, characterized in that: The adjustment mechanism includes a bonding plate (9) fixedly connected to the bottom of the carrier plate (8). A set of threaded rotating blocks (10) is rotatably connected to the bottom of the bonding plate (9). The outer side of the threaded rotating blocks (10) is threadedly connected to the inside of the connecting plate (11). A set of connecting plates (15) is fixed at both the front and rear ends of the connecting plate (11). The top of the connecting plates (15) is fixed to the bottom of the paddle block (16).

5. The automatic calibration system for an X-ray fluorescence spectrometer according to claim 4, characterized in that: The shape of the paddle block (16) is "L". The paddle block (16) forms a sliding structure between the interior of the connecting plate (15) and the carrier plate (8). There are two sets of paddle blocks (16) symmetrically distributed about the vertical center line of the carrier plate (8).

6. The automatic calibration system for an X-ray fluorescence spectrometer according to claim 4, characterized in that: A set of movable rods (12) are fixed at both ends of the connecting plate (11), and a set of piston blocks (13) are fixed at the top of the movable rods (12). The outer side of the piston blocks (13) is attached to the bottom inner side of the suction cup (14).

7. An automatic calibration system for an X-ray fluorescence spectrometer according to claim 6, characterized in that: The top of the suction cup (14) extends out of the top and bottom of the adhesive plate (9), the top of the suction cup (14) is attached to the bottom of the movable plate (4), the outer side of the piston block (13) is tightly attached to the inside of the suction cup (14), and the piston block (13) forms a negative pressure adsorption structure with the bottom of the movable plate (4) through the suction cup (14).

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