X-ray fluorescence coating thickness measuring analyzer

Abstract

The invention discloses an X-ray fluorescent coating thickness measuring analyzer, and relates to the field of thickness gauges, the X-ray fluorescent coating thickness measuring analyzer comprises a base and a mounting block, an adjusting assembly is arranged between the base and the mounting block, the adjusting assembly is used for controlling the mounting block to move in multiple directions, the mounting block is rotatably connected with a rotating seat, and the bottom side of the rotating seat is provided with a mounting circular groove; a circular top box for mounting the probe main body is clamped in the mounting circular groove, an object placing plate for placing an object to be detected is arranged on the base, and a horizontal driving piece for driving the object placing plate to move horizontally is arranged on the base. According to the application, the convenience of probe installation is improved, and the convenience of using the thickness measuring analyzer is improved.

Description

Technical Field

[0001] This application relates to the field of thickness gauges, and particularly to an X-ray fluorescence coating thickness analyzer. Background Art

[0002] At present, when an X-ray thickness gauge uses X-rays to penetrate the material to be measured, the change in the intensity of the X-rays is related to the thickness of the material, so as to measure the thickness of the material. It is a non-contact dynamic measuring instrument.

[0003] In the prior art, a Chinese patent with the patent number CN216558801U, an X-ray thickness gauge probe fixing device, includes a base and a probe body. A vertical plate is provided at the upper end of the base, a top plate is provided on the vertical plate, an installation round groove is opened below the top plate, and a round top box is inserted and fixed in the installation round groove. The probe body is fixed on the round top box, and the round top box is directly inserted and fixed in the installation round groove to realize the installation of the probe body.

[0004] In view of the above prior art, after the probe body is installed in the installation round groove, it is convenient for the probe body to irradiate the item to be detected. During installation, since the installation round groove is opened downward, the staff needs to observe the installation round groove from bottom to top, so that the round top box can be inserted into the installation round groove more accurately. Or the staff inserts the round top box into the installation round groove by touch according to experience. Both of these methods have great inconvenience and affect the convenience of using the thickness analyzer, and urgent improvement is needed. Summary of the Invention

[0005] In order to improve the convenience of probe installation and the convenience of using the thickness analyzer, this application provides an X-ray fluorescence coating thickness analyzer.

[0006] An X-ray fluorescence coating thickness analyzer provided by this application adopts the following technical solutions:

[0007] It includes a base and an installation block. An adjustment component is provided between the base and the installation block. The adjustment component is used to control the multi-directional movement of the installation block. A rotating seat is rotatably connected to the installation block. An installation round groove is opened at the bottom side of the rotating seat. A round top box for installing the probe body is clamped in the installation round groove. A placement plate for placing the item to be measured is provided on the base, and a horizontal driving member for driving the placement plate to move horizontally is provided on the base.

[0008] By adopting the above technical solution, during use, the adjustment component controls the multi-directional movement of the mounting block, so that when the item to be measured is placed on the base, the item to be measured can be measured more conveniently and accurately. And by rotating the rotating seat, the purpose of rotating the opening direction of the mounting circular groove can be achieved, so that the dome box can be inserted into the mounting circular groove more conveniently, improving the convenience of installing the probe body and the convenience of using the thickness measuring analyzer.

[0009] Preferably, a telescopic hole is formed on one side of the rotating seat close to the mounting block. The telescopic hole is communicated with the mounting circular groove. A positioning rod is telescopically arranged in the telescopic hole. A support spring for driving the positioning rod to move away from the dome box is arranged in the telescopic hole. A positioning hole for inserting and cooperating with the positioning rod is formed on the side wall of the dome box. A rotating arc groove for inserting and cooperating with the positioning rod is formed on one side of the mounting block close to the rotating seat. The depth of the rotating arc groove gradually increases along the rotation direction of the mounting circular groove to one side.

[0010] By adopting the above technical solution, during use, when the positioning rod is under the action of the rotating arc groove and the rotating seat is reset, the positioning rod is inserted into the positioning hole, so as to realize the locking of the dome box, improving the convenience of fixing the dome box. When the rotating seat rotates to one side, the positioning rod can move into the rotating arc groove, and the positioning rod is separated from the positioning hole, so that the dome box can be more conveniently separated from the mounting circular groove, improving the convenience of installing and disassembling the dome box; and by using the cooperation of the positioning rod and the rotating arc groove, the rotating seat can rotate more smoothly and stably.

[0011] Preferably, first magnetic blocks are arranged at both ends of the rotating arc groove, and second magnetic blocks attracted to the first magnetic blocks are arranged on the side wall of the positioning rod.

[0012] By adopting the above technical solution, the cooperation of the first magnetic block and the second magnetic block can make the positioning rod be more stably fixed at the fixed position, reduce the occurrence of the rotation or vibration of the rotating seat, and improve the stability of fixing the rotating seat.

[0013] Preferably, a plurality of mounting plates are detachably connected to the side wall of the storage plate. A plug-in plate is arranged on one side of the mounting plate close to the storage plate. A plug-in hole for inserting and cooperating with the plug-in plate is formed on the mounting plate. A pressing ring is arranged on the inner wall of the plug-in hole, and the side wall of the plug-in plate abuts against the pressing ring.

[0014] By adopting the above technical solution, using a plurality of mounting plates can expand the size of the items to be measured placed on the storage plate, making it more convenient to place the items to be measured and improving the convenience of placing items to be measured of various sizes.

[0015] Preferably, a plurality of negative pressure holes are formed in both the object placing plate and the mounting plate, and a vacuum machine is arranged on the base. The vacuum machine is connected to the negative pressure holes.

[0016] By adopting the above technical solution, the vacuum machine acts on the negative pressure holes to generate negative pressure in the negative pressure holes, so as to adsorb the object to be measured, improve the convenience of fixing the object, and with such a design, the fixing structure on the upper side of the object to be measured can be reduced, and the extrusion of the object to be measured can be reduced, so that the whole object to be measured can be detected more comprehensively and the convenience of detecting the object to be measured can be improved; when the object to be measured has a curvature or a fold, through a plurality of negative pressure holes, multiple points of the object to be measured can be fixed, so that the object to be measured is fixed more neatly.

[0017] Preferably, a plurality of pressing grooves are formed in both the object placing plate and the mounting plate. The pressing grooves are arranged in one-to-one correspondence with the negative pressure holes. The pressing grooves are formed beside the negative pressure holes. A pressing block is connected to the pressing groove in a lifting manner. A connection hole communicating with the negative pressure hole is formed in the side wall of the pressing groove. A limiting plate is slidably connected in the connection hole. A switch hole is formed in the limiting plate. A switch inclined groove is formed on one side of the limiting plate close to the pressing block. A pressing inclined groove abutted against the switch inclined groove is formed in the side wall of the pressing block. When the pressing block moves downward, it drives the limiting plate to move away from the pressing block. When the limiting plate moves away from the pressing block, the switch hole communicates with the negative pressure hole. A pressing spring for driving the limiting plate to move close to the pressing block is arranged on the side wall of the negative pressure hole.

[0018] By adopting the above technical solution, the pressing spring drives the limiting plate to approach the pressing block, so that the pressing block pops out. When the object to be measured is placed on the object placing plate, the pressing block can be driven to descend under the action of its own weight, so as to drive the limiting plate to move away from the pressing block, so that the connection hole communicates with the negative pressure hole, so that the negative pressure hole can be used normally, so that the object to be measured can be fixed more smoothly. When the object to be measured is lighter, the opening space of the connection hole is smaller. Through the adsorption of the object to be measured by the negative pressure hole, a positive auxiliary effect can be formed, so that the object to be measured can be fixed more conveniently; with such a design, the opening and closing of the negative pressure hole can be controlled, so that the negative pressure hole can be opened according to the size of the object to be measured, better ensuring the pressure of the negative pressure hole pair and improving the fixing stability of the object to be measured.

[0019] Preferably, the adjacent negative pressure holes are communicated with each other. A first communication hole communicating with the negative pressure hole is opened at the bottom of the insertion hole. A second communication hole for communicating the first communication hole with the negative pressure hole is opened on the insertion plate. A switch arc groove is opened at the bottom of the insertion hole and is communicated with the first communication hole. A switch arc plate is arranged in the switch arc groove. A third communication hole is opened on the switch arc plate. The insertion plate is used to drive the switch arc plate to rotate so that the third communication hole is communicated with the first communication hole. A return spring for driving the switch arc plate to move closer to the insertion plate is arranged in the switch arc groove.

[0020] By adopting the above technical solution, during use, when the insertion plate is inserted into the insertion hole, the switch arc plate is simultaneously pushed to move, so that the first communication hole, the second communication hole and the third communication hole can be communicated, so that multiple mounting plates can be used more conveniently, and the convenience of fixing the article to be measured is improved.

[0021] Preferably, a male magnetic block is arranged on one side of the mounting plate close to the placement plate, and a female magnetic block attracted to the male magnetic block is arranged on the side wall of the placement plate.

[0022] By adopting the above technical solution, when the mounting plate is fixed, through the cooperation of the male magnetic block and the female magnetic block, the mounting plate can be fixed more stably, the shaking of the male magnetic block during use is reduced, and the stability of using the mounting plate is improved.

[0023] Preferably, a storage cavity is opened on the side wall of the base. The storage cavity is used to store multiple mounting plates. An attracting block is arranged on the bottom side of the storage cavity, and the attracting block attracts the male magnetic block.

[0024] By adopting the above technical solution, the storage cavity can be used to store the mounting plates, so that the storage of the storage plates can be more convenient, and the convenience of using the mounting plates is improved. Then, in cooperation with the locking of the mounting plates by the male magnetic block and the attracting block, the mounting plates can be fixed more stably, and the firmness of using the mounting plates is improved.

[0025] Preferably, both ends of the switch arc groove are communicated with the insertion hole. A clamping groove engaged with the switch arc plate is opened on the side of the insertion plate away from the mounting plate. A friction rubber is arranged on the side of the clamping groove away from the mounting plate, and the friction rubber abuts against the side wall of the switch arc plate.

[0026] By adopting the above technical solution, during use, when the switch arc plate moves, the switch arc plate can be clamped in the clamping groove. In cooperation with the use of the friction rubber, the switch arc plate can lock the insertion plate, and the stability of fixing the mounting plate is improved.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. During use, the adjustment component controls the multi-directional movement of the mounting block, so that when the item to be measured is placed on the base, the item to be measured can be measured more conveniently and accurately. By rotating the rotating seat, the purpose of rotating the opening direction of the mounting circular groove can be achieved, so that the dome box can be inserted into the mounting circular groove more conveniently, improving the convenience of installing the probe body and the convenience of using the thickness analyzer;

[0029] 2. During use, when the positioning rod acts on the rotating arc groove, when the rotating seat is reset, the positioning rod is inserted into the positioning hole, thus realizing the locking of the dome box and improving the convenience of fixing the dome box. When the rotating seat rotates to one side, the positioning rod can move into the rotating arc groove, and the positioning rod is disengaged from the positioning hole, so that the dome box can be more conveniently detached from the mounting circular groove, improving the convenience of installing and disassembling the dome box; and by using the positioning rod and the rotating arc groove in cooperation, the rotating seat can rotate more smoothly and stably;

[0030] 3. The vacuum machine acts on the negative pressure holes to generate negative pressure in the negative pressure holes, so as to achieve the effect of adsorbing the item to be measured and improve the convenience of fixing the item. And with such a design, the fixing structure on the upper side of the item to be measured can be reduced, and the extrusion of the item to be measured can be reduced, so that the whole item to be measured can be detected more comprehensively, improving the convenience of detecting the item to be measured; when the measured item has a curvature or a fold, through multiple negative pressure holes, multiple points of the item to be measured can be fixed, so that the item to be measured is fixed more neatly. Then, the pressing spring drives the limiting plate to approach the pressing block, and the pressing block pops out. When the item to be measured is placed on the placing plate, under the action of its own weight, the pressing block can be lowered, so as to drive the limiting plate to move away from the pressing block, and the connecting hole is opened in communication with the negative pressure hole, so that the negative pressure hole can be used normally, and the item to be measured can be fixed more smoothly. When the item to be measured is light, the opening space of the connecting hole is small. Through the adsorption of the item to be measured by the negative pressure hole, a positive assistance can be formed, so that the item to be measured is fixed more conveniently; with such a design, the opening and closing of the negative pressure hole can be controlled, so that the negative pressure hole can be opened according to the size of the item to be measured, better ensuring the pressure of the negative pressure hole and improving the stability of fixing the item to be measured. Description of the Drawings

[0031] Figure 1 It is a schematic diagram of the overall structure of an X-ray fluorescence coating thickness analyzer according to an embodiment of the present application;

[0032] Figure 2 It is a schematic diagram mainly showing the structure of the rotating seat according to an embodiment of the present application;

[0033] Figure 3 Schematic diagram mainly showing the positioning rod and the rotating arc groove structure in the embodiment of the present application;

[0034] Figure 4 Schematic diagram mainly showing the mounting plate structure in the embodiment of the present application;

[0035] Figure 5 is Figure 4 Enlarged schematic diagram of part A in;

[0036] Figure 6 Schematic diagram mainly showing the negative pressure hole structure in the embodiment of the present application;

[0037] Figure 7 is Figure 4 Enlarged schematic diagram of part B in;

[0038] Figure 8 Schematic diagram mainly showing the mounting plate and the storage cavity structure in the embodiment of the present application;

[0039] Reference numerals: 1, mounting block; 2, rotating seat; 3, probe body; 4, placing plate; 6, second driving cylinder; 7, connecting seat; 8, mounting plate; 9, base; 10, vacuum machine; 11, positioning rod; 12, rotating arc groove; 13, mounting round groove; 14, round top box; 15, second magnet; 16, first magnet; 17, pressing block; 18, negative pressure hole; 19, pressing ring; 20, plugging plate; 21, switch arc plate; 22, first communication hole; 23, pressing spring; 24, switch hole; 25, connecting hole; 26, plugging hole; 27, switch arc groove; 28, male magnet; 29, female magnet; 30, second communication hole; 31, friction rubber; 32, clamping groove; 33, reset spring; 34, third communication hole; 35, attracting block; 36, storage cavity; 37, first driving cylinder; 38, telescopic hole; 39, support spring; 40, positioning hole; 41, limiting plate; 42, pressing groove; 43, switch inclined groove; 44, pressing inclined groove. Detailed implementation manners

[0040] The following will Figure 1 - Figure 8 make a further detailed description of the present application in conjunction with the attached

[0041] The embodiment of the present application discloses an X-ray fluorescence coating thickness analyzer.

[0042] Referring to Figure 1, an X-ray fluorescence coating thickness measuring analyzer, including a base 9 and a mounting block 1. The base 9 is a rectangular base 9. There is an adjustment component between the base 9 and the mounting block 1. The adjustment component is used to control the multi-directional movement of the mounting block 1, enabling the mounting block 1 to move along the vertical and horizontal directions, so that the movement of the mounting block 1 can be controlled more conveniently. A rotating seat 2 is rotatably connected to the mounting block 1. The rotating seat 2 is a rectangular plate. An installation circular groove 13 is opened on the bottom side of the rotating seat 2. The installation circular groove 13 is cylindrical. A dome box 14 for installing the probe body 3 is clamped in the installation circular groove 13. By rotating the rotating seat 2, the installation circular groove 13 can be oriented towards the side, enabling the staff to install the dome box 14 more conveniently and improving the convenience of installing the dome box 14. A placing plate 4 for placing the item to be measured is fixed on the base 9. A horizontal driving member for driving the placing plate 4 to move horizontally is fixed on the base 9, so as to meet the horizontal movement of the item to be measured. The horizontal movement direction of the placing plate 4 is perpendicular to the horizontal movement direction of the mounting block 1 in the transverse direction. Thus, the item to be measured can be detected more conveniently, improving the convenience of detecting the item to be measured.

[0043] The adjustment component includes a connecting seat 7 horizontally and slidably connected to the base 9. A first driving cylinder 37 for driving the connecting seat 7 to slide is arranged on the base 9. The mounting block 1 is vertically slidably connected to the connecting seat 7. A second driving cylinder 6 for driving the mounting block 1 to move is arranged on the connecting seat 7. Through the cooperation of the first driving cylinder 37 and the second driving cylinder 6, the mounting block 1 can move more conveniently, improving the convenience of adjusting the probe body 3.

[0044] A telescopic hole 38 is opened on one side of the rotating seat 2 close to the mounting block 1. The telescopic hole 38 is a cylindrical hole. The telescopic hole 38 is communicated with the installation circular groove 13. A positioning rod 11 is telescopically connected in the telescopic hole 38. The positioning rod 11 is a cylindrical rod. A support spring 39 for driving the positioning rod 11 to move away from the dome box 14 is fixed in the telescopic hole 38. A positioning hole 40 inserted and matched with the positioning rod 11 is opened on the side wall of the dome box 14. A rotating arc groove 12 inserted and matched with the positioning rod 11 is opened on one side of the mounting block 1 close to the rotating seat 2. The depth of the rotating arc groove 12 gradually increases along the rotation direction of the installation circular groove 13 to one side. Thus, when the rotating seat 2 resets, the dome box 14 can be fixed more conveniently and stably, improving the convenience of using the thickness measuring analyzer.

[0045] First magnetic blocks 16 are fixed at both ends of the rotating arc groove 12. Second magnetic blocks 15 attracted to the first magnetic blocks 16 are fixed on the side wall of the positioning rod 11. The attraction between the first magnetic blocks 16 and the second magnetic blocks 15 is used to lock the position of the positioning rod 11, improving the stability of fixing the positioning rod 11.

[0046] A plurality of mounting plates 8 are detachably connected to the side wall of the storage plate 4. An insertion plate 20 is integrally formed on the side of the mounting plate 8 close to the storage plate 4. The insertion plate 20 is a rectangular plate. An insertion hole 26 that is inserted and matched with the insertion plate 20 is formed in the mounting plate 8. A pressing ring 19 is fixed on the inner wall of the insertion hole 26. The side wall of the insertion plate 20 abuts against the pressing ring 19, so that the insertion plate 20 can be fixed more stably and the firmness of the fixing of the mounting plate 8 can be improved.

[0047] A plurality of negative pressure holes 18 are formed in both the storage plate 4 and the mounting plate 8. The negative pressure holes 18 are cylindrical holes and are arranged in a vertical and horizontal array. A vacuum machine 10 is fixed on the base 9, and the vacuum machine 10 is connected to the negative pressure holes 18. The negative pressure is used to fix the item to be tested, so as to improve the firmness of the fixing of the item to be tested, and the extrusion of the item to be tested can be reduced. Thus, the whole item to be tested can be detected more comprehensively, and the convenience of detecting the item to be tested can be improved. A plurality of pressing grooves 42 are formed in both the storage plate 4 and the mounting plate 8. The pressing grooves 42 are arranged in one-to-one correspondence with the negative pressure holes 18, and the pressing holes are formed beside the negative pressure holes 18. A pressing block 17 is connected to the pressing groove 42 in a lifting manner. A connection hole 25 communicating with the negative pressure hole 18 is formed in the side wall of the pressing groove 42. A limiting plate 41 is slidably connected in the connection hole 25. The limiting plate 41 is a rectangular plate, and a switch hole 24 is formed in the limiting plate 41. A switch inclined groove 43 is formed on the side of the limiting plate 41 close to the pressing block 17. The switch inclined groove 43 is inclined downward in the direction away from the limiting plate 41. A pressing inclined groove 44 abuting against the switch inclined groove 43 is formed in the side wall of the pressing block 17. The side wall of the pressing inclined groove 44 is inclined downward in the direction away from the limiting plate 41. When the pressing block 17 moves downward, it drives the limiting plate 41 to move away from the pressing block 17. When the limiting plate 41 moves away from the pressing block 17, the switch hole 24 communicates with the negative pressure hole 18, so that the negative pressure hole 18 can be opened to facilitate the fixing of the item to be tested. A pressing spring 23 for driving the limiting plate 41 to move toward the pressing block 17 is fixed on the side wall of the negative pressure hole 18. The pressing spring 23 can be used to drive the limiting plate 41 to move, so that the negative pressure hole 18 can be closed more conveniently.

[0048] The adjacent negative pressure holes 18 are connected and opened. A first communication hole 22 communicating with the negative pressure hole 18 is opened at the bottom of the insertion hole 26. A second communication hole 30 for communicating the first communication hole 22 with the negative pressure hole 18 is opened on the insertion plate 20. A switch arc groove 27 is opened at the bottom of the insertion hole 26. The switch arc groove 27 is connected and opened with the first communication hole 22. A switch arc plate 21 is fixed in the switch arc groove 27. A third communication hole 34 is opened on the switch arc plate 21. The insertion plate 20 is used to drive the switch arc plate 21 to rotate so that the third communication hole 34 communicates with the first communication hole 22. A return spring 33 for driving the switch arc plate 21 to move towards the insertion plate 20 is fixed in the switch arc groove 27. A male magnetic block 28 is fixed on one side of the mounting plate 8 close to the storage plate 4. A female magnetic block 29 attracted to the male magnetic block 28 is fixed on the side wall of the storage plate 4, improving the fixing stability of the storage plate 4.

[0049] A storage cavity 36 is opened on the side wall of the base 9. The storage cavity 36 is a rectangular cavity. The storage cavity 36 is used to store a plurality of mounting plates 8. An attracting block 35 is fixed on the bottom side of the storage cavity 36. The attracting block 35 attracts the male magnetic block 28.

[0050] Both ends of the switch arc groove 27 are connected to the insertion hole 26. A clamping groove 32 that is clamped and matched with the switch arc plate 21 is opened on the side of the insertion plate 20 away from the mounting plate 8. A friction rubber 31 is arranged on the side of the clamping groove 32 away from the mounting plate 8. The friction rubber 31 abuts against the side wall of the switch arc plate 21, so that the insertion plate 20 can be locked, improving the fixing stability of the insertion plate 20. After the mounting plate 8 is used, the friction rubber 31 can be squeezed by shaking the mounting plate 8. Then, in cooperation with the return spring 33, the switch arc plate 21 can be driven away from the clamping groove 32, realizing the detachment of the insertion plate 20 and simultaneously closing the first communication hole 22.

[0051] The implementation principle of an X-ray fluorescence coating thickness analyzer in an embodiment of the present application is as follows: During operation, when the item to be measured is small, the item is placed on the storage plate 4. Under the action of the self-weight of the item to be measured or with the assistance of the staff, the pressing block 17 is squeezed downward, so that the item to be measured can be fixed in cooperation with the negative pressure hole 18, improving the convenience of detecting and fixing the item to be measured; when the item is large, by installing two mounting plates 8, the area of the storage plate 4 can be expanded, enabling the larger item to be measured to be fixed more conveniently, improving the convenience of detecting the item to be measured. In cooperation with the switch arc plate 21, the air flow switch and locking can be performed at the connection between the mounting plate 8 and the storage plate 4, improving the convenience of using the mounting plate 8; when the probe body 3 needs to be replaced, by rotating the rotating seat 2, the installation round groove 13 can be oriented to one side, so that the staff can install it more conveniently. Then, in cooperation with the positioning rod 11, the automatic locking of the dome box 14 can be realized, improving the convenience of using the thickness analyzer.

[0052] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An X-ray fluorescence coating thickness analyzer, characterized in that: The invention comprises a base (9) and a mounting block (1), an adjustment component is arranged between the base (9) and the mounting block (1), the adjustment component is used to control the multi-directional movement of the mounting block (1), a rotating base (2) is rotatably connected to the mounting block (1), a mounting circular groove (13) is provided on the bottom side of the rotating base (2), a dome box (14) for mounting a probe body (3) is clamped in the mounting circular groove (13), a placement plate (4) for placing an object to be tested is arranged on the base (9), and a horizontal driving member for driving the placement plate (4) to move horizontally is arranged on the base (9).

2. The X-ray fluorescence coating thickness analyzer according to claim 1, characterized in that: A telescopic hole (38) is provided on a side of the rotating seat (2) close to the mounting block (1), the telescopic hole (38) is connected to the mounting circular groove (13), a positioning rod (11) is telescopically arranged in the telescopic hole (38), a supporting spring (39) is arranged in the telescopic hole (38) for driving the positioning rod (11) to move away from the dome box (14), a positioning hole (40) is provided on the side wall of the dome box (14) for plugging and cooperating with the positioning rod (11), a rotating arc groove (12) is provided on a side of the mounting block (1) close to the rotating seat (2), and the depth of the rotating arc groove (12) gradually increases along the mounting circular groove (13) in a direction of rotation toward one side.

3. The X-ray fluorescence coating thickness analyzer according to claim 2, characterized in that: Both ends of the rotating arc groove (12) are provided with a first magnetic block (16), and the side wall of the positioning rod (11) is provided with a second magnetic block (15) which attracts the first magnetic block (16).

4. The X-ray fluorescence coating thickness analyzer according to claim 1, characterized in that: The side wall of the storage plate (4) is detachably connected to a plurality of mounting plates (8); a plug-in plate (20) is provided on one side of the mounting plate (8) close to the storage plate (4); a plug-in hole (26) for plugging with the plug-in plate (20) is provided on the mounting plate (8); a clamping ring (19) is provided on the inner wall of the plug-in hole (26); and the side wall of the plug-in plate (20) abuts against the clamping ring (19).

5. The X-ray fluorescence coating thickness analyzer according to claim 4, characterized in that: A plurality of negative pressure holes (18) are provided on the storage plate (4) and the mounting plate (8), a vacuum machine (10) is provided on the base (9), and the vacuum machine (10) is connected to the negative pressure holes (18).

6. The X-ray fluorescence coating thickness analyzer according to claim 5, characterized in that: The storage plate (4) and the mounting plate (8) are both provided with a plurality of pressing grooves (42), the pressing grooves (42) being arranged in one-to-one correspondence with the negative pressure holes (18), the pressing grooves (42) being provided next to the negative pressure holes (18), a pressing block (17) being connected in a lifting manner in the pressing grooves (42), a connecting hole (25) being provided on the side wall of the pressing grooves (42) being connected in a sliding manner with the negative pressure holes (18), a limiting plate (41) being slidably connected in the connecting hole (25), a switch hole (24) being provided on the limiting plate (41), and the limiting plate (41) being close to the negative pressure hole (18). A switch bevel (43) is provided on one side near the pressing block (17), and a pressing bevel (44) abutting against the switch bevel (43) is provided on the side wall of the pressing block (17). The pressing block (17) moves downward to drive the limit plate (41) to move away from the pressing block (17). When the limit plate (41) moves away from the pressing block (17), the switch hole (24) is connected to the negative pressure hole (18), and a pressing spring (23) is provided on the side wall of the negative pressure hole (18) for driving the limit plate (41) to move closer to the pressing block (17).

7. The X-ray fluorescence coating thickness analyzer according to claim 6, characterized in that: The adjacent negative pressure holes (18) are connected to each other, a first connecting hole (22) connected to the negative pressure hole (18) is provided at the bottom of the plug hole (26), a second connecting hole (30) for connecting the first connecting hole (22) and the negative pressure hole (18) is provided on the plug board (20), a switch arc groove (27) is provided at the bottom of the plug hole (26), the switch arc groove (27) is connected to the first connecting hole (22), a switch arc plate (21) is provided in the switch arc groove (27), a third connecting hole (34) is provided on the switch arc plate (21), the plug board (20) is used to drive the switch arc plate (21) to rotate so that the third connecting hole (34) is connected to the first connecting hole (22), and a return spring (33) for driving the switch arc plate (21) to move closer to the plug board (20) is provided in the switch arc groove (27).

8. The X-ray fluorescence coating thickness analyzer according to claim 7, characterized in that: A male magnetic block (28) is arranged on one side of the mounting plate (8) close to the storage plate (4), and a female magnetic block (29) that attracts the male magnetic block (28) is arranged on the side wall of the storage plate (4).

9. The X-ray fluorescence coating thickness analyzer according to claim 8, characterized in that: The side wall of the base (9) is provided with a storage cavity (36), and the storage cavity (36) is used to store a plurality of mounting plates (8). An attraction block (35) is provided on the bottom side of the storage cavity (36), and the attraction block (35) and the male magnetic block (28) attract each other.

10. The X-ray fluorescence coating thickness analyzer according to claim 7, characterized in that: Both ends of the switch arc groove (27) are connected to the plug hole (26); a clamping groove (32) for clamping with the switch arc plate (21) is provided on the side of the plug plate (20) away from the mounting plate (8); a friction rubber (31) is provided on the side of the clamping groove (32) away from the mounting plate (8); and the friction rubber (31) abuts against the side wall of the switch arc plate (21).

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