Sample clamping auxiliary device for three-dimensional atom probe detection

Abstract

The invention discloses a sample clamping auxiliary device for three-dimensional atom probe detection. The sample clamping auxiliary device comprises a rack, and a mounting piece is arranged over the left side of the rack. The feet of the three-dimensional atom probe support are placed in the connecting disc, the main gear is driven to rotate through the output end of the transmission motor, all the clamping pieces are driven to synchronously move towards the position close to the circle center of the connecting disc, the feet of the three-dimensional atom probe support are clamped, installation is rapidly achieved, operation of workers is not needed, and the work efficiency is improved. When a sample needs to be leveled, the first movable arm, the second movable arm, the third movable arm and the fourth movable arm are all kept in a rotating state by pushing or retracting the output ends of the air cylinders, so that the movable seat moves to drive the movable rod to rotate, and the output ends of a plurality of groups of air cylinders can be respectively controlled; and the installation piece can be kept in a horizontal state, convenience and rapidness are achieved, and the requirements of workers are further met.

Description

Technical Field

[0001] The present invention relates to the technical field of material test sample preparation, and more particularly to a sample clamping auxiliary device for three-dimensional atom probe detection. Background Art

[0002] Atom probe detection technology is a high-resolution and high-sensitivity surface analysis technology that can accurately characterize the composition and structure of the micro-region on the material surface. In atom probe detection, the sample clamping auxiliary device is a key component to ensure the experimental accuracy and stability. Its design needs to take into account the fixation, positioning, fine-tuning of the sample, and compatibility with the probe system.

[0003] Chinese Patent CN209280391U discloses a sample stage for three-dimensional atom probe detection, including a threaded rod, a base, flat head screws, threaded holes, through holes, small threaded holes, and small flat head screws; the threaded rod is connected to the base through threads, a groove is opened on one side of the upper surface of the base, threaded holes are opened on the groove wall and the bottom surface, and the size of the flat head screw matches that of the threaded hole; a platform is opened on one side of the upper surface of the base, a through hole is vertically opened on the platform, and a small threaded hole is opened in the parallel direction, and the depth direction of the small threaded hole extends to intersect with the corresponding through hole. The present utility model provides a reasonable design of the sample support device and the needle holder on a base that is convenient for operation and movement and has an appropriate distance, thereby successfully solving the problem of low sample preparation success rate caused by frequently replacing the sample and the needle holder and moving the characteristic area over a large range during sample preparation, and also solving the problems of difficult clamping of irregular samples and easy mechanical drift during the sample preparation process. At the same time, it can also batch prepare samples for three-dimensional atom probe detection.

[0004] However, when using the above device, manual adjustment is required. The upper surface of the sample is adjusted horizontally by the flat head screw through the threaded hole on the bottom surface of the groove. In addition, when fixing the three-dimensional atom probe holder, manual operation is also required. This method is rather troublesome and difficult to meet the needs of the staff. Summary of the Invention

[0005] To solve the above technical problems, a sample clamping auxiliary device for three-dimensional atom probe detection is provided. The technical solution solves the problem that when using the above device, manual adjustment is required. The upper surface of the sample is adjusted horizontally by the flat head screw through the threaded hole on the bottom surface of the groove. In addition, when fixing the three-dimensional atom probe holder, manual operation is also required. This method is rather troublesome.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: A sample clamping auxiliary device for three-dimensional atom probe detection, comprising a bench. An installation part is arranged directly above the left side of the bench. A clamping mechanism is arranged at the top of the installation part, and the clamping mechanism is used for clamping a sample. A leveling mechanism is installed between the installation part and the bench, and the leveling mechanism is used to adjust the installation part to a horizontal state. Notch openings are provided at the four corners of the right side of the top of the bench, and connection discs are installed inside the notch openings. An installation mechanism is arranged inside the connection discs, and the installation mechanism is used to fix a three-dimensional atom probe bracket.

[0007] Preferably, the leveling mechanism includes connecting seats, first movable arms, second movable arms, connecting shafts, third movable arms and fourth movable arms. There are three groups of connecting seats, and all of them are fixedly installed on the top of the bench. Cylinders are fixedly connected to both sides of the connecting seats. There are three groups of the first movable arms, second movable arms, connecting shafts, third movable arms and fourth movable arms respectively. One ends of the first movable arm and the second movable arm close to each other are rotatably connected.

[0008] Preferably, the ends of the first movable arm and the second movable arm far from each other are respectively rotatably connected to the output ends of the cylinders. The middle parts of the tops of the first movable arm and the second movable arm are respectively rotatably connected to the third movable arm and the fourth movable arm.

[0009] Preferably, the third movable arm and the fourth movable arm are both rotatably connected to the outer surface of the connecting shaft. A movable seat is fixedly installed at the top of the connecting shaft. A movable rod is rotatably connected inside the movable seat. The bottom end of the installation part is fixedly connected to a fixed seat, and the end of the movable rod far from the movable seat is rotatably connected to the inside of the fixed seat.

[0010] Further, by advancing or retracting the output ends of the cylinders, the first movable arm, the second movable arm, the third movable arm and the fourth movable arm are all kept in a rotating state, so that the movable seat moves and drives the movable rod to rotate. Therefore, the output ends of several groups of cylinders can be controlled respectively to keep the installation part in a horizontal state. Since a clamping mechanism for clamping a sample is arranged at the top of the installation part, the sample in the clamped state can also be ensured to be in a horizontal state.

[0011] Preferably, the installation mechanism includes a rotating ring. The rotating ring is rotatably connected inside the connection disc. An external gear and an internal gear are respectively fixedly connected to the outer wall and the inner wall of the rotating ring. A main gear and several driven gears are also rotatably connected inside the connection disc.

[0012] Preferably, the external gear meshes with the main gear, and several driven gears mesh with the internal gear.

[0013] Preferably, several clamping members are also slidably connected inside the connection disc. A rack meshing with the driven gear is fixedly installed on the clamping member.

[0014] Preferably, a driving motor is installed on the inner wall of the connecting disk, and the output end of the driving motor is fixedly connected to the middle part of the top of the main gear.

[0015] Furthermore, the output end of the driving motor drives the main gear to rotate, causing the outer gear to rotate, driving the integral rotation of the rotating ring and the inner gear, and further causing all the driven gears to rotate synchronously, thereby driving all the racks to move synchronously towards or away from the center of the connecting disk, achieving the driving of all the clamping members to move synchronously towards or away from the center of the connecting disk. When approaching, it realizes the clamping of the feet of the three-dimensional atomic probe holder, quickly realizes the installation, and meets the needs of the staff.

[0016] Preferably, the clamping mechanism includes fixed blocks. There are two groups of fixed blocks, both of which are fixedly connected to the top of the mounting member. A threaded rod is rotatably connected between the two groups of fixed blocks. The thread directions of the two ends of the threaded rod are opposite, and clamping blocks are threadedly connected to both ends of the outer surface of the threaded rod.

[0017] Preferably, both of the two clamping blocks are slidably connected to the outer surface of the fixed rod. The two ends of the fixed rod are respectively fixedly connected to the inner walls of the two groups of fixed blocks. The outer end of the threaded rod is fixedly connected to the output end of the servo motor, and the servo motor is fixedly installed on the outer side wall of one of the fixed blocks.

[0018] Furthermore, the output end of the servo motor drives the threaded rod to rotate, causing the two clamping blocks to approach or move away from each other. When approaching, it realizes the clamping of the sample, and when moving away, it releases the clamping of the sample.

[0019] Compared with the prior art, the present invention provides a sample clamping auxiliary device for three-dimensional atomic probe detection, having the following beneficial effects: 1. Place the feet of the three-dimensional atomic probe holder inside the connecting disk. The output end of the driving motor drives the main gear to rotate, causing the outer gear to rotate, driving the integral rotation of the rotating ring and the inner gear, and further causing all the driven gears to rotate synchronously, thereby driving all the racks to move synchronously towards the center of the connecting disk, achieving the driving of all the clamping members to move synchronously towards the center of the connecting disk, realizing the clamping of the feet of the three-dimensional atomic probe holder, quickly realizing the installation, without the need for staff operation, convenient and fast.

[0020] 2. When it is necessary to level the sample, the output end of the cylinder advances or retracts, causing the first movable arm, the second movable arm, the third movable arm, and the fourth movable arm to all maintain a rotating state, causing the movable seat to move and driving the movable rod to rotate. Therefore, the output ends of several groups of cylinders can be controlled separately to keep the mounting member in a horizontal state, which is convenient and fast, and further meets the needs of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the clamping mechanism in the present invention; Figure 3 It is a schematic diagram of the structure of the leveling mechanism in the present invention; Figure 4 In the present invention Figure 3 It is a schematic diagram of the enlarged structure at position A proposed in the present invention; Figure 5 It is a schematic diagram of the structure of the mounting mechanism in the present invention.

[0022] The reference numerals in the figure are: 1. Bench; 101. Mounting part; 102. Connection disk; 2. Leveling mechanism; 201. Connection seat; 202. Cylinder; 203. First movable arm; 204. Second movable arm; 205. Connection shaft; 206. Third movable arm; 207. Fourth movable arm; 208. Movable seat; 209. Movable rod; 210. Fixed seat; 3. Mounting mechanism; 301. Rotating ring; 302. Internal gear; 303. External gear; 304. Driven gear; 305. Clamping part; 306. Main gear; 307. Rack; 308. Driving motor; 4. Clamping mechanism; 401. Fixed block; 402. Threaded rod; 403. Fixed rod; 404. Servo motor; 405. Clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0024] Embodiment 1 Please refer to Figures 1-5 As shown, a sample clamping auxiliary device for three-dimensional atom probe detection includes a bench 1. A mounting part 101 is provided directly above the left side of the bench 1. A clamping mechanism 4 is provided on the top of the mounting part 101. The clamping mechanism 4 is used to clamp the sample. A leveling mechanism 2 is installed between the mounting part 101 and the bench 1. The leveling mechanism 2 is used to adjust the mounting part 101 to a horizontal state. Slots are provided at the four corner positions on the right side of the top of the bench 1. A connection disk 102 is installed inside the slots. An installation mechanism 3 is provided inside the connection disk 102. The installation mechanism 3 is used to fix the three-dimensional atom probe bracket.

[0025] Embodiment 2 Please refer to Figure 3 and Figure 4As shown, the leveling mechanism 2 includes a connecting seat 201, a first movable arm 203, a second movable arm 204, a connecting shaft 205, a third movable arm 206, and a fourth movable arm 207. There are three groups of connecting seats 201, all of which are fixedly installed on the top of the bench 1. Cylinders 202 are fixedly connected to both sides of the connecting seat 201. There are three groups of the first movable arm 203, the second movable arm 204, the connecting shaft 205, the third movable arm 206, and the fourth movable arm 207. The ends of the first movable arm 203 and the second movable arm 204 that are close to each other are rotatably connected.

[0026] Please refer to Figure 3 and Figure 4 As shown, the ends of the first movable arm 203 and the second movable arm 204 that are far from each other are respectively rotatably connected to the output ends of the cylinders 202. The middle parts of the tops of the first movable arm 203 and the second movable arm 204 are respectively rotatably connected to the third movable arm 206 and the fourth movable arm 207.

[0027] Please refer to Figure 3 and Figure 4 As shown, the third movable arm 206 and the fourth movable arm 207 are both rotatably connected to the outer surface of the connecting shaft 205. A movable seat 208 is fixedly installed at the top of the connecting shaft 205. A movable rod 209 is rotatably connected inside the movable seat 208. The bottom end of the mounting member 101 is fixedly connected to a fixed seat 210, and the end of the movable rod 209 far from the movable seat 208 is rotatably connected inside the fixed seat 210.

[0028] Those skilled in the art can understand that by advancing or retracting the output ends of the cylinders 202, the first movable arm 203, the second movable arm 204, the third movable arm 206, and the fourth movable arm 207 are all kept in a rotating state, so that the movable seat 208 moves and drives the movable rod 209 to rotate. Therefore, the output ends of several groups of the cylinders 202 can be controlled respectively to keep the mounting member 101 in a horizontal state. Since the clamping mechanism 4 for clamping the sample is provided at the top of the mounting member 101, the sample in the clamped state can also be ensured to be in a horizontal state.

[0029] Embodiment 3 Please refer to Figure 5 As shown, the mounting mechanism 3 includes a rotating ring 301. The rotating ring 301 is rotatably connected inside the connecting disk 102. An external gear 303 and an internal gear 302 are respectively fixedly connected to the outer wall and the inner wall of the rotating ring 301. A main gear 306 and several driven gears 304 are also rotatably connected inside the connecting disk 102.

[0030] Please refer to Figure 5 As shown, the external gear 303 meshes with the main gear 306, and several driven gears 304 mesh with the internal gear 302.

[0031] Please refer toFigure 5 As shown, several groups of clamping members 305 are also slidably connected inside the connecting disk 102, and racks 307 meshing with the driven gears 304 are fixedly installed on the clamping members 305.

[0032] Please refer to Figure 5 As shown, a driving motor 308 is installed on the inner wall of the connecting disk 102, and the output end of the driving motor 308 is fixedly connected to the middle of the top end of the main gear 306.

[0033] Those skilled in the art can understand that by driving the main gear 306 to rotate through the output end of the driving motor 308, the outer gear 303 rotates, driving the entire rotating ring 301 and the inner gear 302 to rotate, and further enabling all the driven gears 304 to rotate synchronously, thereby driving all the racks 307 to move synchronously towards or away from the center of the connecting disk 102, achieving driving all the clamping members 305 to move synchronously towards or away from the center of the connecting disk 102. And when approaching, it realizes clamping the feet of the three-dimensional atomic probe holder, quickly achieving installation and meeting the needs of the staff.

[0034] Embodiment 4 Please refer to Figure 2 As shown, the clamping mechanism 4 includes fixing blocks 201. Two groups of fixing blocks 201 are provided and are both fixedly connected to the top of the mounting member 101. A threaded rod 402 is rotatably connected between the two groups of fixing blocks 201. The thread directions of the two ends of the threaded rod 402 are opposite, and clamping blocks 405 are threadedly connected to both ends of the outer surface of the threaded rod 402.

[0035] Please refer to Figure 2 As shown, both groups of clamping blocks 405 are slidably connected to the outer surface of the fixing rod 403. The two ends of the fixing rod 403 are respectively fixedly connected to the inner walls of the two groups of fixing blocks 201. The outer end of the threaded rod 402 is fixedly connected to the output end of the servo motor 404, and the servo motor 404 is fixedly installed on the outer side wall of one of the fixing blocks 201.

[0036] Those skilled in the art can understand that by driving the threaded rod 402 to rotate through the output end of the servo motor 404, the two groups of clamping blocks 405 approach or move away from each other. When approaching, it realizes clamping the sample, and when moving away, it releases the clamping of the sample.

[0037] The working principle of the present invention is as follows: S1. Place the sample containing element segregation between the two groups of clamping blocks 405, and drive the threaded rod 402 to rotate through the output end of the servo motor 404, so that the two groups of clamping blocks 405 approach each other to clamp the sample; S2. Place the feet of the three-dimensional atom probe holder inside the connection disk 102. Drive the main gear 306 to rotate through the output end of the drive motor 308, causing the outer gear 303 to rotate, driving the overall rotation of the rotating ring 301 and the inner gear 302, and then causing all the driven gears 304 to rotate synchronously, thereby driving all the racks 307 to move synchronously towards the position close to the center of the connection disk 102, achieving the drive of all the clamping members 305 to move synchronously towards the position close to the center of the connection disk 102, realizing the clamping of the feet of the three-dimensional atom probe holder, quickly realizing the installation, without the need for staff operation, which is convenient and fast; S3. Place the whole device into the equipment. When it is necessary to level the sample, push or retract through the output end of the cylinder 202, so that the first movable arm 203, the second movable arm 204, the third movable arm 206 and the fourth movable arm 207 are all kept in a rotating state, causing the movable seat 208 to move and driving the movable rod 209 to rotate. Therefore, the output ends of several groups of cylinders 202 can be controlled separately, and the mounting member 101 can be kept in a horizontal state, which is convenient and fast, further meeting the needs of the staff.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample clamping auxiliary device for three-dimensional atomic probe detection, comprising a stand (1), characterized in that: A mounting member (101) is arranged just above the left side of the stand (1), a clamping mechanism (4) is arranged on the top of the mounting member (101), the clamping mechanism (4) is used to clamp a sample, a leveling mechanism (2) is arranged between the mounting member (101) and the stand (1), the leveling mechanism (2) is used to adjust the mounting member (101) to a horizontal state, notches are provided at the four right corners of the top of the stand (1), a connecting plate (102) is installed inside the notch, a mounting mechanism (3) is arranged inside the connecting plate (102), and the mounting mechanism (3) is used to fix a three-dimensional atomic probe bracket.

2. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 1, characterized in that: The leveling mechanism (2) comprises a connecting seat (201), a first movable arm (203), a second movable arm (204), a connecting shaft (205), a third movable arm (206) and a fourth movable arm (207); the connecting seat (201) is provided with three groups and is fixedly mounted on the top of the platform (1); both sides of the connecting seat (201) are fixedly connected with a cylinder (202); the first movable arm (203), the second movable arm (204), the connecting shaft (205), the third movable arm (206) and the fourth movable arm (207) are provided with three groups; the first movable arm (203) and the second movable arm (204) are rotatably connected at one end close to each other.

3. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 2, characterized in that: The ends of the first movable arm (203) and the second movable arm (204) that are away from each other are respectively rotatably connected to the output end of the cylinder (202), and the middle parts of the top ends of the first movable arm (203) and the second movable arm (204) are respectively rotatably connected to the third movable arm (206) and the fourth movable arm (207).

4. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 3, characterized in that: The third movable arm (206) and the fourth movable arm (207) are both rotatably connected to the outer surface of the connecting shaft (205); a movable seat (208) is fixedly installed on the top of the connecting shaft (205); a movable rod (209) is rotatably connected inside the movable seat (208); the bottom end of the mounting member (101) is fixedly connected to a fixed seat (210); and one end of the movable rod (209) away from the movable seat (208) is rotatably connected to the inside of the fixed seat (210).

5. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 1, characterized in that: The mounting mechanism (3) comprises a rotating circle (301), the interior of the connecting disk (102) is rotatably connected to the rotating circle (301), the outer wall and inner wall of the rotating circle (301) are respectively fixedly connected to an outer gear (303) and an inner gear (302), and the interior of the connecting disk (102) is also rotatably connected to a group of main gears (306) and a plurality of groups of idler gears (304).

6. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 5, characterized in that: The outer gear (303) meshes with the main gear (306), and a plurality of groups of the driven gears (304) mesh with the inner gear (302).

7. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 5, characterized in that: A plurality of groups of clamping members (305) are also slidably connected to the interior of the connection disk (102), and racks (307) meshing with the gears (304) are fixedly mounted on the clamping members (305).

8. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 5, characterized in that: A transmission motor (308) is mounted on the inner wall of the connection disk (102), and an output end of the transmission motor (308) is fixedly connected to the middle of the top end of the main gear (306).

9. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 1, characterized in that: The clamping mechanism (4) comprises a fixing block (201), wherein the fixing block (201) is provided with two groups, both of which are fixedly connected to the top of the mounting member (101), a threaded rod (402) is rotatably connected between the two groups of fixing blocks (201), the threads provided at both ends of the threaded rod (402) have opposite rotation directions, and both ends of the outer surface of the threaded rod (402) are threadedly connected to the clamping blocks (405).

10. The sample clamping auxiliary device for three-dimensional atom probe detection according to claim 9, characterized in that: The two groups of clamping blocks (405) are both slidably connected to the outer surface of the fixing rod (403), the two ends of the fixing rod (403) are respectively fixedly connected to the inner walls of the two groups of fixing blocks (201), the outer end of the threaded rod (402) is fixedly connected to the output end of the servo motor (404), and the servo motor (404) is fixedly installed on the outer side wall of one group of the fixing blocks (201).

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