Crucible clamping device for muffle furnace

Abstract

The utility model relates to the technical field of crucible equipment, in particular to a crucible clamping device for a muffle furnace, which comprises a nippling lever shell, a pushing assembly is arranged at one end of the inner wall of the nippling lever shell and comprises a driving motor, a threaded rod and a moving seat, a moving groove is formed in one end of the pushing assembly, and the threaded rod is arranged in the moving groove. A movable groove is formed in the threaded rod, a sliding assembly is arranged in the movable groove, a first forceps rod and a second forceps rod are arranged on one side of the sliding assembly, and reset springs are arranged on the front side of the first forceps rod and the front side of the second forceps rod. The movable base is driven to move accurately in the through groove in the direction of the threaded rod, it is ensured that when the first clamp rod and the second clamp rod clamp the crucible, the accurate clamping position and force are achieved, it is ensured that the crucible is firmly clamped through a reset spring, after clamping is completed, the clamping force can be automatically adjusted, and it is avoided that the crucible falls off due to too loose clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of crucible equipment, and specifically relates to a crucible clamping device for a muffle furnace. Background Technique

[0002] Traditional crucible clamping devices usually adopt simple mechanical structures, such as tongs or hooks, and are operated manually to clamp and place crucibles. However, in a high-temperature environment, the surface temperature of the crucible is extremely high, and direct contact with the hand will cause burns. Therefore, special clamping tools are required. At the same time, due to the different shapes and sizes of crucibles, traditional clamping devices often cannot adapt to all types of crucibles, resulting in easy shaking or falling off during the clamping process, posing a safety hazard.

[0003] After retrieval, the Chinese patent document application number 202221313794.3 discloses an adjustable muffle furnace ceramic crucible handling device. A handle is provided at the rear end of the movable rod. A limit sleeve is movably installed on the front side of the movable rod. A threaded through hole is opened on the left surface of the front side of the limit sleeve. The front end of the movable rod is hinged to the rear end of the connecting rod. A threaded blind hole is opened on the left surface of the rear side of the connecting rod. The circular crucible clamping part includes two semi-circular parts. A limit elastic sheet is installed on the right side of the two semi-circular parts through screws. Compared with the prior art, the utility model has the following beneficial effects: By setting the limit elastic sheet, when the circular crucible clamping part takes the circular crucible, it has a limit structure for the crucible cover, so that the crucible cover will not fall off. The design of the movable rod, the connecting rod and the limit sleeve enables the lengths of the first clamping rod and the second clamping rod to be adjustable. When not in use, it can be folded up for easy carrying and storage.

[0004] The above-mentioned adjustable muffle furnace ceramic crucible handling device has a limit elastic sheet, so that when the circular crucible clamping part takes the circular crucible, it has a limit structure for the crucible cover, so that the crucible cover will not fall off. The design of the movable rod, the connecting rod and the limit sleeve enables the lengths of the first clamping rod and the second clamping rod to be adjustable. When not in use, it can be folded up for easy carrying and storage.

[0005] However, the above-mentioned adjustable muffle furnace ceramic crucible handling device still has the following defects:

[0006] When the device manually operates the long clamping rod through the handle to clamp the crucible, due to the increase in the operation distance and the extension of the force arm, the clamping force may be insufficient, thereby increasing the risk of the crucible slipping. Therefore, we need a crucible clamping device for a muffle furnace. Summary of the Utility Model

[0007] The purpose of the present utility model is to provide a crucible clamping device for a muffle furnace. It mainly controls the rotation of a threaded rod through a driving motor, and then drives a moving seat to move precisely along the direction of the threaded rod in a through groove, ensuring that when the first tong rod and the second tong rod clamp the crucible, they have precise clamping positions and forces. A return spring is arranged between the first tong rod and the second tong rod, which can not only provide a certain clamping force during the clamping process to ensure that the crucible is firmly clamped, but also automatically adjust the clamping force after the clamping is completed, avoiding damage to the crucible caused by over-tight clamping or dropping of the crucible caused by over-loose clamping.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A crucible clamping device for a muffle furnace, including a tong rod housing. A through groove is opened inside the tong rod housing. One end of the inner wall of the tong rod housing is provided with a pushing component. The pushing component includes a driving motor, a threaded rod, and a moving seat. The base of the driving motor is fixedly installed inside the tong rod housing. The output shaft of the driving motor is fixedly connected to one end of the threaded rod. A threaded groove is opened at one end of the moving seat. The other end of the threaded rod is threadedly connected in the threaded groove. A moving groove is opened at one end of the pushing component. A sliding component is arranged inside the moving groove. A first tong rod and a second tong rod are arranged on one side of the sliding component. A return spring is arranged on the front side of the first tong rod and the second tong rod. A clamping component is arranged on the inner walls of one ends of the first tong rod and the second tong rod.

[0009] Preferably, the clamping component includes a clamping plate. Anti-slip lines are arranged on the surface of the clamping plate. A bolt is fixedly installed on the back of the clamping plate. Threaded holes are opened on the inner walls of one ends of the first tong rod and the second tong rod. One end of the bolt is threadedly connected in the threaded hole.

[0010] Preferably, the sliding component is arranged on the side wall at the other end of the moving seat. The sliding component includes a round rod and two sliding blocks. A moving groove is opened on the side wall of the moving seat. The two ends of the round rod are fixedly installed on the inner walls of both sides of the moving groove. The two sliding blocks are slidably connected to the round rod. One ends of the two sliding blocks are respectively rotatably connected to the first tong rod and the second tong rod.

[0011] Preferably, a rotating groove is opened at one end of the sliding block. A rotating rod is arranged inside the rotating groove. The two ends of the rotating rod are fixedly installed on the inner walls of both sides of the rotating groove through bearings. A movable seat is installed on the surface of the rotating rod. One end of the movable seat is fixedly connected to the other end of the first tong rod.

[0012] Preferably, an intersecting groove is opened at the center of the first tong rod, and the first tong rod and the second tong rod are cross-connected through the intersecting groove. A pin shaft is hinged between the center of the first tong rod and the center of the second tong rod.

[0013] Preferably, both ends of the return spring are fixedly installed with spring seats, and the bottom ends of the two spring seats are respectively fixedly installed on the inner walls of the first clamping rod and the second clamping rod.

[0014] Preferably, an anti-slip sleeve is sleeved on the outer wall of one end of the clamping rod housing, a power button is fixedly installed on the surface of the clamping rod housing, limiting grooves are opened on both sides at one end of the through groove, and the limiting grooves are slidably connected to one ends of the first clamping rod and the second clamping rod.

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

[0016] 1. The present utility model mainly controls the rotation of the threaded rod through the driving motor, and then drives the moving seat to move precisely along the direction of the threaded rod in the through groove, ensuring that the first clamping rod and the second clamping rod have precise clamping positions and forces when clamping the crucible. The return spring arranged between the first clamping rod and the second clamping rod can not only provide a certain clamping force during the clamping process to ensure that the crucible is firmly clamped, but also automatically adjust the clamping force after the clamping is completed, avoiding damage to the crucible caused by over-tight clamping or dropping of the crucible caused by over-loose clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a cross-sectional view of the interior of the clamping rod housing of the present utility model;

[0019] Figure 3 is an enlarged structural schematic diagram of the sliding assembly of the present utility model.

[0020] In the figure: 1. Clamping rod housing; 2. Anti-slip sleeve; 3. Power button; 4. Limiting groove; 5. Driving motor; 6. Threaded rod; 7. Moving seat; 8. Threaded groove; 9. First clamping rod; 10. Second clamping rod; 11. Pin shaft; 12. Cross groove; 13. Spring seat; 14. Return spring; 15. Threaded hole; 16. Bolt; 17. Clamping plate; 18. Movable seat; 19. Rotating rod; 20. Sliding block; 21. Moving groove; 22. Round rod; 23. Rotating groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-3, the utility model provides a crucible clamping device for a muffle furnace, which includes a pliers rod housing 1. A through groove is provided inside the pliers rod housing 1. One end of the inner wall of the pliers rod housing 1 is provided with a pushing component. The pushing component includes a driving motor 5, a threaded rod 6 and a moving seat 7. The base of the driving motor 5 is fixedly installed inside the pliers rod housing 1. The output shaft of the driving motor 5 is fixedly connected to one end of the threaded rod 6. A threaded groove 8 is provided at one end of the moving seat 7. The other end of the threaded rod 6 is threadedly connected inside the threaded groove 8. A moving groove 21 is provided at one end of the pushing component. A sliding component is arranged inside the moving groove 21. One side of the sliding component is provided with a first pliers rod 9 and a second pliers rod 10. A return spring 14 is arranged on the front side of the first pliers rod 9 and the second pliers rod 10. A clamping component is arranged on the inner wall at one end of the first pliers rod 9 and the second pliers rod 10.

[0023] During use, the rotation of the threaded rod 6 is controlled by the driving motor 5, thereby driving the moving seat 7 to move precisely along the direction of the threaded rod 6 inside the through groove, ensuring that when the first pliers rod 9 and the second pliers rod 10 clamp the crucible, there are precise clamping positions and forces. The return spring 14 arranged between the first pliers rod 9 and the second pliers rod 10 can not only provide a certain clamping force during the clamping process to ensure that the crucible is firmly clamped, but also can automatically adjust the clamping force after the clamping is completed, avoiding damage to the crucible caused by over-tight clamping or dropping of the crucible caused by over-loose clamping.

[0024] The clamping component includes a clamping plate 17. Anti-slip lines are arranged on the surface of the clamping plate 17. A bolt 16 is fixedly installed on the back of the clamping plate 17. Threaded holes 15 are provided on the inner wall at one end of the first pliers rod 9 and the second pliers rod 10. One end of the bolt 16 is threadedly connected inside the threaded hole 15. The anti-slip line design on the surface of the clamping plate 17 greatly increases the friction with the surface of the crucible. The threaded connection between the bolt 16 and the threaded hole 15 provides a stable clamping force, effectively preventing the crucible from falling due to sliding during the clamping process.

[0025] The sliding component is arranged on the side wall at the other end of the moving seat 7. The sliding component includes a round rod 22 and two sliding blocks 20. Moving grooves 21 are provided on the side wall of the moving seat 7. Both ends of the round rod 22 are fixedly installed on the inner walls on both sides of the moving groove 21. The two sliding blocks 20 are slidably connected to the round rod 22. One ends of the two sliding blocks 20 are respectively rotatably connected to the first pliers rod 9 and the second pliers rod 10. Since the sliding blocks 20 are rotatably connected to the first pliers rod 9 and the second pliers rod 10, the two pliers rods can be adjusted at an angle within a certain range. By adjusting the rotation speed and rotation direction of the driving motor 5, the moving distance and speed of the sliding blocks 20 can be precisely controlled, and thus the clamping force and clamping position of the first pliers rod 9 and the second pliers rod 10 can be controlled.

[0026] One end of the sliding block 20 is provided with a rotating groove 23. A rotating rod 19 is arranged inside the rotating groove 23. Both ends of the rotating rod 19 are fixedly installed on the inner walls on both sides of the rotating groove 23 through bearings. An activity seat 18 is installed on the surface of the rotating rod 19. One end of the activity seat 18 is fixedly connected to the other end of the first clamping rod 9. Through the arrangement of the rotating rod 19 and the activity seat 18, the first clamping rod 9 can be flexibly rotated and adjusted on the sliding block 20. The fixed connection between the activity seat 18 and the first clamping rod 9 (and the second clamping rod 10) enables the other ends of the first clamping rod 9 and the second clamping rod 10 to approach each other through the cooperation of the activity seat 18, the rotating rod 19 and the sliding block 20 when one ends of the first clamping rod 9 and the second clamping rod 10 extend out of the clamping rod housing 1 by the elastic force of the return spring 14.

[0027] A cross groove 12 is provided at the center of the first clamping rod 9, and the first clamping rod 9 and the second clamping rod 10 are cross-connected through the cross groove 12. A pin shaft 11 is hinged between the center of the first clamping rod 9 and the center of the second clamping rod 10. Using the pin shaft 11 as the hinge simplifies the structure of the clamping device, making the device lighter and easier to operate.

[0028] Spring seats 13 are fixedly installed at both ends of the return spring 14. The bottom ends of the two spring seats 13 are respectively fixedly installed on the inner walls of the first clamping rod 9 and the second clamping rod 10. The return spring 14 can provide a stable clamping force for the first clamping rod 9 and the second clamping rod 10, ensuring that the crucible can be firmly clamped when clamping the crucible to prevent it from falling or slipping. When the return spring 14 is inside the clamping rod housing 1, the return spring 14 is in a compressed state.

[0029] An anti-slip sleeve 2 is sleeved on the outer wall of one end of the clamping rod housing 1. A power button 3 is fixedly installed on the surface of the clamping rod housing 1. Limit grooves 4 are provided on both sides at one end of the through groove. The limit grooves 4 are slidably connected to one ends of the first clamping rod 9 and the second clamping rod 10. The design of the anti-slip sleeve 2 enables the operator to obtain better friction when holding the clamping rod housing 1, effectively preventing operation errors caused by hand slipping. The setting of the power button 3 enables the operator to conveniently control the start and stop of the driving motor 5. Through the limitation of the limit grooves 4, the two clamping rods can be prevented from shifting or shaking during the clamping process, thereby ensuring that the crucible is stably and accurately clamped.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crucible clamping device for a muffle furnace, comprising a clamp rod housing (1), characterized in that: A through groove is provided inside the clamp rod housing (1), and a pushing assembly is provided at one end of the inner wall of the clamp rod housing (1). The pushing assembly comprises a driving motor (5), a threaded rod (6) and a movable seat (7). The base of the driving motor (5) is fixedly installed inside the clamp rod housing (1), and the output shaft of the driving motor (5) is fixedly connected to one end of the threaded rod (6). A threaded groove (8) is provided at one end of the movable seat (7), and the other end of the threaded rod (6) is threadedly connected in the threaded groove (8). A movable groove (21) is provided at one end of the pushing assembly, and a sliding assembly is provided inside the movable groove (21). A first clamp rod (9) and a second clamp rod (10) are provided on one side of the sliding assembly, and a return spring (14) is provided on the front side of the first clamp rod (9) and the second clamp rod (10). A clamping assembly is provided on the inner wall of one end of the first clamp rod (9) and the second clamp rod (10).

2. The crucible clamping device for a muffle furnace according to claim 1, characterized in that: The clamping assembly comprises a clamping plate (17), the surface of the clamping plate (17) is provided with anti-slip grooves, a bolt (16) is fixedly installed on the back side of the clamping plate (17), a threaded hole (15) is formed on the inner wall of one end of the first clamp rod (9) and the second clamp rod (10), and one end of the bolt (16) is threadedly connected in the threaded hole (15).

3. The crucible clamping device for a muffle furnace according to claim 2, characterized in that: The sliding assembly is arranged on the other end side wall of the moving seat (7), and the sliding assembly comprises a round rod (22) and two sliding blocks (20). The side wall of the moving seat (7) is provided with a moving groove (21), and the two ends of the round rod (22) are fixedly mounted on the inner walls of the moving groove (21) on both sides. The two sliding blocks (20) are slidably connected to the round rod (22), and one end of the two sliding blocks (20) is rotatably connected to the first clamp rod (9) and the second clamp rod (10) respectively.

4. The crucible clamping device for a muffle furnace according to claim 3, characterized in that: A rotation groove (23) is formed at one end of the sliding block (20), a rotation rod (19) is arranged inside the rotation groove (23), two ends of the rotation rod (19) are fixedly mounted on the inner walls of the rotation groove (23) at both sides through bearings, a movable seat (18) is mounted on the surface of the rotation rod (19), and one end of the movable seat (18) is fixedly connected to the other end of the first clamp rod (9).

5. The crucible clamping device for a muffle furnace according to claim 4, characterized in that: A cross groove (12) is provided at the center of the first clamp rod (9), and the first clamp rod (9) and the second clamp rod (10) are cross-connected through the cross groove (12), and a pin shaft (11) is hinged at the center of the first clamp rod (9) and the center of the second clamp rod (10).

6. The crucible clamping device for a muffle furnace according to claim 5, characterized in that: Both ends of the return spring (14) are fixedly mounted with spring seats (13), and the bottom ends of the two spring seats (13) are respectively fixedly mounted on the inner walls of the first clamp rod (9) and the second clamp rod (10).

7. The crucible clamping device for a muffle furnace according to claim 6, characterized in that: An anti-slip sleeve (2) is sleeved on the outer wall of one end of the clamp rod housing (1), a power button (3) is fixedly mounted on the surface of the clamp rod housing (1), and limiting grooves (4) are provided on both sides of one end of the through groove, and the limiting grooves (4) are slidably connected to one end of the first clamp rod (9) and one end of the second clamp rod (10).

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