Accurate clamping device for dissolving fuel sample

Abstract

The utility model relates to the technical field of fuel sample dissolution, in particular to a fuel sample dissolution accurate clamping device which comprises a supporting base, a taking and placing device base and a bottom plate are installed on the surface of the top of the supporting base, first supporting blocks are installed on the surface of the top of the taking and placing device base, and a first supporting plate is installed between the first supporting blocks. A first fixing plate is installed on the surface of one side of the first supporting block, a first servo motor is installed on the surface of the top of the first sliding rail, and a first ball screw is installed at the output end of the first servo motor. According to the improved clamping device, the design of convenient clamping is adopted, a tank body, an inner cover and an outer cover of the digestion tank can be clamped, deviation of the digestion tank during clamping is prevented, the design of convenient adjustment is adopted, the height of the first taking and placing device and the height of the second taking and placing device can be adjusted, and therefore the digestion tank can be conveniently taken and placed. And the horizontal position of the locker assembly can be adjusted, so that the digestion tank can be conveniently clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel sample dissolution, in particular to a fuel sample dissolution precision clamping device. Background Art

[0002] The objects to be processed for fuel sample dissolution are generally highly radioactive solid samples in the form of solid blocks or solid powders. Since the samples are radioactive and can easily cause harm to the human body, a clamping device is usually required to process the samples.

[0003] The clamping device for fuel sample dissolution is used to assist in the acid leaching of fuel samples and microwave digestion of samples in a microwave digestion tank. The traditional clamping device has insufficient clamping function for the digestion tank, resulting in the inner cover and outer cover of the digestion tank falling off when being taken and placed, affecting the use of the device.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. When the existing clamping device clamps the digestion tank, there is a single clamping structure, and the inner cover and the outer cover of the digestion tank are easy to fall off when taking and placing, affecting the use of the device; 2. The existing clamping device is not convenient for adjusting the height of the taking and placing device according to needs, and it is not convenient to adjust the locker, and it cannot be well adapted to the clamping requirements of digestion tanks of different sizes. Utility Model Content

[0005] The purpose of the present utility model is to provide a precise clamping device for dissolving fuel samples, so as to solve the problems of single clamping structure and inconvenient adjustment existing in the clamping device in the above-mentioned background technology. To achieve the above purpose, the present utility model provides the following technical solutions: A precise clamping device for dissolving fuel samples, including a support base, on the top surface of the support base, a pick-and-place device base and a bottom plate are installed. On the top surface of the pick-and-place device base, a first support block is installed. Between the first support blocks, a first support plate is installed. On one side surface of the first support block, a first fixing plate is installed. On one side surface of the first fixing plate, a first slide rail is installed. On the top surface of the first slide rail, a first servo motor is installed. The output end of the first servo motor is installed with a first ball screw. The outer wall of the first ball screw is installed with a first movable block. On one side surface of the first movable block, an L-shaped plate is installed. At the bottom of the L-shaped plate, a second support plate is installed. On one side surface of the second support plate, a first pick-and-place device is installed. On the other side surface of the second support plate, a second pick-and-place device is installed. On the top surface of the bottom plate, a second slide rail is installed. Inside the second slide rail, a second movable block and a third movable block are installed. Inside the second movable block, a second ball screw is installed. One end of the second ball screw is installed with a second servo motor. On the top surfaces of the second movable block and the third movable block, a moving platform is installed. On the top surface of the moving platform, a second fixing plate is installed. Between the second fixing plates, a third servo motor is installed. The output end of the third servo motor is installed with a turntable. On the top surface of the turntable, a locking device assembly is installed.

[0006] The first pick-and-place device includes a fourth servo motor installed on one side surface of the second support plate. The output end of the fourth servo motor is installed with a first worm. On both outer walls of the first worm, first worm wheels are installed. On one side surface of the first worm wheel, a first transmission gear is installed. The inner wall of the first transmission gear is rotatably connected to a first fixed rod. The outer wall of the first fixed rod is installed with a first protective cover. At the bottom of the first transmission gear, a first straight rack is installed. At the bottom of the first straight rack, a first mounting plate is installed. Inside the first mounting plate, a first movable rod is installed. At the bottom of the first mounting plate, a first clamp is installed.

[0007] The second picking and placing device includes a fifth servo motor installed on the other side surface of the second support plate. The output end of the fifth servo motor is installed with a second worm gear. Both outer walls of the second worm gear are installed with second worm wheels. One side surface of the second worm wheel is installed with a second transmission gear. The inner wall of the second transmission gear is rotatably connected to a second fixed rod. The outer wall of the second fixed rod is installed with a second protective cover. The bottom of the second transmission gear is installed with a second straight rack. The bottom of the second straight rack is installed with a second mounting plate. A second movable rod is installed inside the second mounting plate. The bottom of the second mounting plate is installed with a second fixture.

[0008] The locking device assembly includes a sixth servo motor installed on the top surface of the turntable. The output end of the sixth servo motor is installed with a third worm gear. Both outer walls of the third worm gear are installed with third worm wheels. One side surface of the third worm wheel is installed with a third transmission gear. The inner wall of the third transmission gear is rotatably connected to a third fixed rod. The outer wall of the third fixed rod is installed with a third protective cover. The bottom of the third transmission gear is installed with a third straight rack. The bottom of the third straight rack is installed with a third mounting plate. A third movable rod is installed inside the third mounting plate. The bottom of the third mounting plate is installed with a third fixture.

[0009] Further preferably, the first servo motor and the first movable block form a transmission mechanism through a first ball screw.

[0010] Further preferably, the second servo motor and the second movable block form a transmission mechanism through a second ball screw.

[0011] Further preferably, the fourth servo motor and the first transmission gear form a transmission mechanism through a first worm gear and a first worm wheel.

[0012] Further preferably, the fifth servo motor and the second transmission gear form a transmission mechanism through a second worm gear and a second worm wheel.

[0013] Further preferably, the sixth servo motor and the third transmission gear form a transmission mechanism through a third worm gear and a third worm wheel.

[0014] Further preferably, the third servo motor and the locking device assembly form a transmission mechanism through the turntable.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] The utility model adopts a design that is easy to clamp, and adopts three clamping components, which can respectively clamp the tank body, the inner cover and the outer cover of the digestion tank effectively, and the fourth servo motor can be started, and the fourth servo motor drives the first transmission gear to rotate through the first worm and the first worm wheel, and drives the first spur rack and the first mounting plate to move closer together through the first transmission gear, so that the first clamp clamps the outer cover of the digestion tank, which is convenient for subsequent taking and placing of the outer cover, and a circular groove is opened in the middle of the top of the inner cover of the digestion tank, and the second clamp can be inserted into the groove, and then the fifth servo motor is started, and the first servo motor is driven to rotate. The fifth servo motor drives the second transmission gear to rotate through the second worm and the second worm wheel, and drives the second spur rack and the second mounting plate to clamp together through the second transmission gear, so that the second clamp clamps the inner side of the inner cover of the digestion tank, which is convenient for taking and placing the inner cover, and the sixth servo motor can be started. The sixth servo motor drives the third transmission gear to rotate through the third worm and the third worm wheel, and drives the third spur rack and the third mounting plate to move closer together through the third transmission gear, so that the third clamp effectively clamps the outer side of the digestion tank, effectively preventing the digestion tank from being offset when clamping, thereby affecting the use of the device.

[0017] The utility model adopts a design that is easy to adjust, so that the height of the first pick-up and placement device and the second pick-up and placement device can be adjusted as needed, and the horizontal position of the locking assembly can be adjusted, the first servo motor can be started, and the first servo motor drives the first ball screw to rotate, so that the inner wall of the first movable block slides on the first ball screw, and the outer wall of the first movable block slides on the inner wall of the first slide rail, so as to adjust the height of the L-shaped plate and the second support plate, thereby adjusting the height of the first pick-up and placement device and the second pick-up and placement device, and the second servo motor can be started, and the second servo motor drives the second ball screw to rotate, so that the inner wall of the second movable block slides on the second ball screw, and the outer wall of the second movable block slides on the inner wall of the second slide rail, thereby adjusting the horizontal position of the movable platform and the locking assembly, and the spacing of the third clamp can be adjusted, so as to facilitate the effective clamping of digestion tanks of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is an exploded and enlarged structural diagram of the first pick-and-place device of the utility model;

[0020] Figure 3 This is an exploded and enlarged structural diagram of the second pick-and-place device of the utility model;

[0021] Figure 4 It is a schematic diagram of the exploded and enlarged structure of the locking device assembly of the utility model.

[0022] In the figure: 1. Support base; 2. Base of the picking and placing device; 3. Bottom plate; 4. First support block; 5. First support plate; 6. First fixing plate; 7. First slide rail; 8. First servo motor; 9. First ball screw; 10. First movable block; 11. L-shaped plate; 12. Second support plate; 13. First picking and placing device; 1301. Fourth servo motor; 1302. First worm; 1303. First worm gear; 1304. First transmission gear; 1305. First fixed rod; 1306. First protective cover; 1307. First straight rack; 1308. First mounting plate; 1309. First movable rod; 1310. First fixture; 14. Second picking and placing device; 1401. Fifth servo motor; 1402. Second worm; 1403. Second worm gear; 1404. Second transmission gear; 1405. Second fixed rod; 1406. Second protective cover; 1407. Second straight rack; 1408. Second mounting plate; 1409. Second movable rod; 1410. Second fixture; 15. Second slide rail; 16. Second movable block; 17. Third movable block; 18. Second ball screw; 19. Second servo motor; 20. Moving platform; 21. Second fixing plate; 22. Third servo motor; 23. Turntable; 24. Locking device assembly; 2401. Sixth servo motor; 2402. Third worm; 2403. Third worm gear; 2404. Third transmission gear; 2405. Third fixed rod; 2406. Third protective cover; 2407. Third straight rack; 2408. Third mounting plate; 2409. Third movable rod; 2410. Third fixture. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 4, the present utility model provides a technical solution: a precise clamping device for dissolving fuel samples, including a support base 1. On the top surface of the support base 1, a pick-and-place device base 2 and a bottom plate 3 are installed. On the top surface of the pick-and-place device base 2, a first support block 4 is installed. Between the first support blocks 4, a first support plate 5 is installed. On one side surface of the first support block 4, a first fixing plate 6 is installed. On one side surface of the first fixing plate 6, a first slide rail 7 is installed. On the top surface of the first slide rail 7, a first servo motor 8 is installed. The output end of the first servo motor 8 is installed with a first ball screw 9. On the outer wall of the first ball screw 9, a first movable block 10 is installed. On one side surface of the first movable block 10, an L-shaped plate 11 is installed. At the bottom of the L-shaped plate 11, a second support plate 12 is installed. On one side surface of the second support plate 12, a first pick-and-place device 13 is installed. On the other side surface of the second support plate 12, a second pick-and-place device 14 is installed. On the top surface of the bottom plate 3, a second slide rail 15 is installed. Inside the inner wall of the second slide rail 15, a second movable block 16 and a third movable block 17 are installed. Inside the inner wall of the second movable block 16, a second ball screw 18 is installed. One end of the second ball screw 18 is installed with a second servo motor 19. On the top surface of the second movable block 16 and the third movable block 17, a moving platform 20 is installed. On the top surface of the moving platform 20, a second fixing plate 21 is installed. Between the second fixing plates 21, a third servo motor 22 is installed. The output end of the third servo motor 22 is installed with a turntable 23. On the top surface of the turntable 23, a locking device assembly 24 is installed.

[0025] The first pick-and-place device 13 includes a fourth servo motor 1301 installed on one side surface of the second support plate 12. The output end of the fourth servo motor 1301 is installed with a first worm 1302. On both outer walls of the first worm 1302, first worm wheels 1303 are installed. On one side surface of the first worm wheel 1303, a first transmission gear 1304 is installed. The inner wall of the first transmission gear 1304 is rotatably connected to a first fixed rod 1305. On the outer wall of the first fixed rod 1305, a first protective cover 1306 is installed. At the bottom of the first transmission gear 1304, a first straight rack 1307 is installed. At the bottom of the first straight rack 1307, a first mounting plate 1308 is installed. Inside the first mounting plate 1308, a first movable rod 1309 is installed. At the bottom of the first mounting plate 1308, a first clamp 1310 is installed.

[0026] The second pick-and-place device 14 includes a fifth servo motor 1401 installed on the other surface of the second support plate 12. The output end of the fifth servo motor 1401 is installed with a second worm 1402. Both outer walls of the second worm 1402 are installed with second worm wheels 1403. One surface of the second worm wheel 1403 is installed with a second transmission gear 1404. The inner wall of the second transmission gear 1404 is rotatably connected to a second fixed rod 1405. The outer wall of the second fixed rod 1405 is installed with a second protective cover 1406. The bottom of the second transmission gear 1404 is installed with a second straight rack 1407. The bottom of the second straight rack 1407 is installed with a second mounting plate 1408. The inside of the second mounting plate 1408 is installed with a second movable rod 1409. The bottom of the second mounting plate 1408 is installed with a second fixture 1410.

[0027] The locking device assembly 24 includes a sixth servo motor 2401 installed on the top surface of the turntable 23. The output end of the sixth servo motor 2401 is installed with a third worm 2402. Both outer walls of the third worm 2402 are installed with third worm wheels 2403. One surface of the third worm wheel 2403 is installed with a third transmission gear 2404. The inner wall of the third transmission gear 2404 is rotatably connected to a third fixed rod 2405. The outer wall of the third fixed rod 2405 is installed with a third protective cover 2406. The bottom of the third transmission gear 2404 is installed with a third straight rack 2407. The bottom of the third straight rack 2407 is installed with a third mounting plate 2408. The inside of the third mounting plate 2408 is installed with a third movable rod 2409. The bottom of the third mounting plate 2408 is installed with a third fixture 2410.

[0028] In this embodiment, as Figure 1 shown, the first servo motor 8 and the first movable block 10 form a transmission mechanism through the first ball screw 9; through this transmission mechanism, it is convenient to start the first servo motor 8. The first servo motor 8 drives the first ball screw 9 to rotate, so that the inner wall of the first movable block 10 slides on the first ball screw 9, and the outer wall of the first movable block 10 slides on the inner wall of the first slide rail 7, realizing the adjustment of the height of the L-shaped plate 11 and the second support plate 12, thereby adjusting the height of the first pick-and-place device 13 and the second pick-and-place device 14.

[0029] In this embodiment, as Figure 1 shown, the second servo motor 19 and the second movable block 16 form a transmission mechanism through the second ball screw 18; through this transmission mechanism, it is convenient to start the second servo motor 19. The second servo motor 19 drives the second ball screw 18 to rotate, so that the inner wall of the second movable block 16 slides on the second ball screw 18, and the outer wall of the second movable block 16 slides on the inner wall of the second slide rail 15, thereby adjusting the horizontal position of the moving platform 20 and the locking device assembly 24.

[0030] In this embodiment, as Figure 2 shown, the fourth servo motor 1301, the first worm 1302, the first worm gear 1303 and the first transmission gear 1304 form a transmission mechanism; it is convenient for the user to start the fourth servo motor 1301. The fourth servo motor 1301 drives the first transmission gear 1304 to rotate through the first worm 1302 and the first worm gear 1303, and drives the first straight rack 1307 and the first mounting plate 1308 to approach each other through the first transmission gear 1304, so that the first clamp 1310 clamps the outer cover of the digestion tank, facilitating the taking and placing of the outer cover.

[0031] In this embodiment, as Figure 3 shown, the fifth servo motor 1401, the second worm 1402, the second worm gear 1403 and the second transmission gear 1404 form a transmission mechanism; a circular groove is formed in the middle of the top of the inner cover of the digestion tank, and the second clamp 1410 can be inserted into the groove. Then, the fifth servo motor 1401 is started. The fifth servo motor 1401 drives the second transmission gear 1404 to rotate through the second worm 1402 and the second worm gear 1403, and drives the second straight rack 1407 and the second mounting plate 1408 to clamp each other through the second transmission gear 1404, so that the second clamp 1410 clamps the inner side of the inner cover of the digestion tank, facilitating the taking and placing of the inner cover.

[0032] In this embodiment, as Figure 4 shown, the sixth servo motor 2401, the third worm 2402, the third worm gear 2403 and the third transmission gear 2404 form a transmission mechanism; through this design, it is convenient for the user to start the sixth servo motor 2401. The sixth servo motor 2401 drives the third transmission gear 2404 to rotate through the third worm 2402 and the third worm gear 2403, and drives the third straight rack 2407 and the third mounting plate 2408 to approach each other through the third transmission gear 2404, so that the third clamp 2410 effectively clamps the outer side of the digestion tank.

[0033] In this embodiment, as Figure 1 shown, the third servo motor 22, the turntable 23 and the locking device assembly 24 form a transmission mechanism; through this design, when the user clamps the outer side of the digestion tank through the locking device assembly 24 and clamps the outer cover of the digestion tank through the first taking and placing device 13, the third servo motor 22 can be started. The third servo motor 22 drives the locking device assembly 24 to rotate through the turntable 23, and at the same time, the first servo motor 8 drives the first taking and placing device 13 to rise at a rotation rate through the second support plate 12, facilitating the removal of the outer cover.

[0034] The usage method and advantages of the present utility model: For this fuel sample dissolution precise clamping device, during use, the working process is as follows:

[0035] AsFigure 1 , Figure 2 , Figure 3 and Figure 4 As shown, first, start the second servo motor 19. The second servo motor 19 drives the second ball screw 18 to rotate, causing the inner wall of the second movable block 16 to slide on the second ball screw 18, and the outer wall of the second movable block 16 to slide on the inner wall of the second slide rail 15. Move the moving platform 20 and the locking device assembly 24 to directly below the first clamp 1310. Place the digestion tank in the middle of the third clamp 2410. Start the sixth servo motor 2401. The sixth servo motor 2401 drives the third transmission gear 2404 to rotate through the third worm 2402 and the third worm gear 2403. Drive the third straight rack 2407 and the third mounting plate 2408 to move closer to each other through the third transmission gear 2404, so that the third clamp 2410 clamps the outside of the digestion tank. Then start the first servo motor 8. The first servo motor 8 drives the first ball screw 9 to rotate, causing the inner wall of the first movable block 10 to slide on the first ball screw 9, and the outer wall of the first movable block 10 to slide on the inner wall of the first slide rail 7. Adjust the height of the L-shaped plate 11 and the second support plate 12, thereby adjusting the first picking and placing device 13 to an appropriate height. Then start the fourth servo motor 1301. The fourth servo motor 1301 drives the first transmission gear 1304 to rotate through the first worm 1302 and the first worm gear 1303. Drive the first straight rack 1307 and the first mounting plate 1308 to move closer to each other through the first transmission gear 1304, so that the first clamp 1310 clamps the outer cover of the digestion tank. Then start the third servo motor 22. The third servo motor 22 drives the locking device assembly 24 to rotate through the turntable 23. At the same time, the first servo motor 8 drives the first picking and placing device 13 to rise at a rotation rate through the second support plate 12, facilitating the removal of the outer cover. Then move the moving platform 20 and the locking device assembly 24 to directly below the second clamp 1410 through the second servo motor 19. A circular groove is provided in the middle of the top of the inner cover of the digestion tank. The second clamp 1410 can be lowered into the groove. Then start the fifth servo motor 1401. The fifth servo motor 1401 drives the second transmission gear 1404 to rotate through the second worm 1402 and the second worm gear 1403. Drive the second straight rack 1407 and the second mounting plate 1408 to clamp each other through the second transmission gear 1404, so that the second clamp 1410 clamps the inside of the inner cover of the digestion tank and removes the inner cover. Finally, take out the digestion tank through the sword-type robotic arm and place it in the microwave digestion.

[0036] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fuel sample dissolving and precise clamping device, comprising a support base (1), characterized in that: The top surface of the support base (1) is installed with a pick-and-place device base (2) and a bottom plate (3); the top surface of the pick-and-place device base (2) is installed with a first support block (4); a first support plate (5) is installed between the first support blocks (4); a first fixed plate (6) is installed on one side surface of the first support block (4); a first slide rail (7) is installed on one side surface of the first fixed plate (6); a first servo motor (8) is installed on the top surface of the first slide rail (7); a first ball screw (9) is installed at the output end of the first servo motor (8); a first movable block (10) is installed on the outer wall of the first ball screw (9); an L-shaped plate (11) is installed on one side surface of the first movable block (10); a second support plate (12) is installed at the bottom of the L-shaped plate (11); a first pick-and-place device is installed on one side surface of the second support plate (12). (13), a second pick-and-place device (14) is installed on the other side surface of the second support plate (12), a second slide rail (15) is installed on the top surface of the bottom plate (3), a second movable block (16) and a third movable block (17) are installed on the inner wall of the second slide rail (15), a second ball screw (18) is installed on the inner wall of the second movable block (16), a second servo motor (19) is installed on one end of the second ball screw (18), a movable platform (20) is installed on the top surface of the second movable block (16) and the third movable block (17), a second fixed plate (21) is installed on the top surface of the movable platform (20), a third servo motor (22) is installed between the second fixed plates (21), a turntable (23) is installed at the output end of the third servo motor (22), and a locking device assembly (24) is installed on the top surface of the turntable (23); The first pick-and-place device (13) comprises a fourth servo motor (1301) mounted on a side surface of the second support plate (12); a first worm (1302) is mounted on an output end of the fourth servo motor (1301); first worm wheels (1303) are mounted on both side outer walls of the first worm (1302); a first transmission gear (1304) is mounted on a side surface of the first worm wheel (1303); and a first transmission gear (1304) is rotatably connected to an inner wall of the first transmission gear (1304). A fixed rod (1305), a first protective cover (1306) is installed on the outer wall of the first fixed rod (1305), a first spur rack (1307) is installed at the bottom of the first transmission gear (1304), a first mounting plate (1308) is installed at the bottom of the first spur rack (1307), a first movable rod (1309) is installed inside the first mounting plate (1308), and a first clamp (1310) is installed at the bottom of the first mounting plate (1308); The second pick-and-place device (14) comprises a fifth servo motor (1401) mounted on the other side surface of the second support plate (12); a second worm (1402) is mounted on the output end of the fifth servo motor (1401); second worm wheels (1403) are mounted on both side outer walls of the second worm (1402); a second transmission gear (1404) is mounted on one side surface of the second worm wheel (1403); and a second transmission gear (1404) is rotatably connected to the inner wall of the second transmission gear (1404). A second fixed rod (1405), a second protective cover (1406) is installed on the outer wall of the second fixed rod (1405), a second spur rack (1407) is installed at the bottom of the second transmission gear (1404), a second mounting plate (1408) is installed at the bottom of the second spur rack (1407), a second movable rod (1409) is installed inside the second mounting plate (1408), and a second clamp (1410) is installed at the bottom of the second mounting plate (1408); The locking device assembly (24) comprises a sixth servo motor (2401) mounted on the top surface of the rotating disk (23); a third worm (2402) is mounted on the output end of the sixth servo motor (2401); third worm wheels (2403) are mounted on both sides of the outer wall of the third worm (2402); a third transmission gear (2404) is mounted on one side of the third worm wheel (2403); and a third fixed gear (2404) is rotatably connected to the inner wall of the third transmission gear (2404). Rod (2405), the outer wall of the third fixed rod (2405) is installed with a third protective cover (2406), the bottom of the third transmission gear (2404) is installed with a third spur rack (2407), the bottom of the third spur rack (2407) is installed with a third mounting plate (2408), the interior of the third mounting plate (2408) is installed with a third movable rod (2409), and the bottom of the third mounting plate (2408) is installed with a third clamp (2410).

2. The fuel sample dissolution precision clamping device according to claim 1, characterized in that: The first servo motor (8) forms a transmission mechanism through a first ball screw (9) and a first movable block (10).

3. The fuel sample dissolution precision clamping device according to claim 1 is characterized by: The second servo motor (19) forms a transmission mechanism through the second ball screw (18) and the second movable block (16).

4. The fuel sample dissolution precision clamping device according to claim 1, characterized in that: The fourth servo motor (1301) forms a transmission mechanism with the first worm (1302), the first worm wheel (1303) and the first transmission gear (1304).

5. The fuel sample dissolution precision clamping device according to claim 1, characterized in that: The fifth servo motor (1401) forms a transmission mechanism with the second worm (1402), the second worm wheel (1403) and the second transmission gear (1404).

6. The fuel sample dissolution precision clamping device according to claim 1, characterized in that: The sixth servo motor (2401) forms a transmission mechanism with the third worm (2402), the third worm wheel (2403) and the third transmission gear (2404).

7. The fuel sample dissolution precision clamping device according to claim 1, characterized in that: The third servo motor (22) forms a transmission mechanism through a rotating disk (23) and a locking device assembly (24).

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