Non-centering crucible clamping mechanism

Through the asynchronous motion and cylinder drive technology of the non-centering crucible clamping mechanism, the problem of difficulty in centering crucible is solved, and automatic removal in high-temperature dust environment is realized, which improves production efficiency and reduces manual intervention. harm.

CN222200609UActive Publication Date: 2024-12-20SICHUAN JIATUO INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202420703721.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-08
Publication Date
2024-12-20
Estimated Expiration
2034-04-08

AI Technical Summary

Technical Problem

In the graphitization process, the inclination, deformation and outer wall slag of the crucible lead to difficulty in centering, and the visual positioning accuracy is difficult to meet the clamping requirements, resulting in the failure of automatic machinery to remove the crucible, and manual removal has high labor intensity and environmental hazards, and low production efficiency.

Method used

Design a non-centering crucible clamping mechanism, adopts asynchronous motion of multiple chucks and cylinder drive, and is bonded to the outer wall of the crucible through arc-shaped clamping plates, and balances the clamping force with the retraction and extension of the inflation cavity in the cylinder, adapting to Grab of irregularly shaped crucibles.

Benefits of technology

It improves the success rate of crucible clamping, reduces the requirements for the accuracy of visual equipment, and can automatically remove the crucible in a high-temperature dust environment, avoids manual intervention, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a non-centering crucible clamping mechanism which comprises a grabbing and clamping assembly, a clamping assembly and a clamping assembly. The grabbing and clamping assembly comprises more than three clamping heads. The driving assembly is connected with the grabbing and clamping assembly and used for driving the grabbing and clamping assembly to clamp and release the crucible; in the working process, the driving assembly drives each chuck on the grabbing and clamping assembly to move, any chuck moves to be attached to the outer wall of the crucible, and the chuck is static relative to the crucible; the remaining chucks continuously move until all the chucks on the driving assembly are attached to the outer wall of the crucible, and the driving assembly increases the driving force output to the chucks so as to clamp the crucible; when the mechanism is used, only the crucible needs to be roughly positioned; the mechanism is low in precision requirement for vision equipment used in cooperation with the mechanism, the success rate of clamping the crucible can be increased, and the mechanism is suitable for grabbing the crucible in an irregular shape; the mechanism is applied to the environment with high temperature, large dust capacity and strong electromagnetic interference, can replace manual work, avoids harm to human bodies caused by manual intervention into the working environment, is high in automation degree, and improves the production efficiency.
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Description

Technical Field

[0001] The utility model relates to a clamping mechanism, in particular to a non-centering crucible clamping mechanism. Background Art

[0002] Graphitization of lithium battery negative electrode materials can improve the volume density, electrical conductivity and thermal conductivity of carbon materials, thereby improving the performance of negative electrode materials. The production steps of graphitization of lithium battery negative electrode materials are as follows: first, the lithium battery graphite negative electrode raw materials are loaded into a crucible, and then the crucible is placed in a graphitization furnace and deeply buried in the filling auxiliary materials, and treated at high temperature;

[0003] In actual production, for the sake of production efficiency and output, the density of the crucible in the graphitization furnace will be maximized; after the graphitization step is completed, the crucible can be removed by automated machinery;

[0004] The steps of taking out the crucible by the automated machine are as follows: firstly, the crucible is positioned above the crucible by a visual positioning system, and after the clamping mechanism and the crucible are first aligned, the clamping mechanism is inserted into the gap between the crucibles from top to bottom, and then the crucible is clamped and taken out;

[0005] However, after the crucible has gone through the high-temperature graphitization process, the crucible will tilt, deform, and slag on the outer wall, causing the shape of the crucible and the position of the crucible in the graphitization furnace to change. In addition, the temperature in the graphitization workshop is high, the amount of dust is large, and the electromagnetic interference is strong. The above factors combined make it difficult for the precision of the visual equipment to locate the crucible to meet the centering requirements of the clamping mechanism, which can easily lead to failure in grasping the crucible. The reason is that the movement rules of the splints in several directions are fixed. If the center of the splint and the crucible are not concentric, the splint that first contacts the crucible wall cannot continue to move due to too much resistance, and the other splints cannot be further clamped even if they do not contact the crucible wall, which will cause the clamping failure. Or the splint that first contacts the crucible wall will continue to retract inward after encountering resistance, causing excessive force on the local part of the crucible, which will eventually damage the crucible.

[0006] Therefore, in graphitization production, it is difficult to apply mechanical equipment for automatically removing crucibles on a large scale, so the current method of removing crucibles in the industry is mostly manual removal;

[0007] However, the labor intensity of manually taking out the crucible is high and the environment of the graphitization workshop is harmful to the human body; furthermore, the production efficiency is low when the crucible is taken out manually. Utility Model Content

[0008] In order to overcome the deficiencies of the prior art, the utility model provides a non-centering crucible clamping mechanism which has low requirements on the accuracy of visual equipment, can improve the success rate of clamping the crucible, replace manual removal of the crucible, improve production efficiency, and adapt to the grasping of irregularly shaped crucibles.

[0009] The technical solution provided by the utility model is as follows:

[0010] A non-centering crucible clamping mechanism, comprising:

[0011] A gripper assembly including three or more grippers;

[0012] A driving assembly connected to the gripping assembly and used to drive the gripping assembly to close and open so as to clamp and release the crucible;

[0013] During operation, the driving assembly drives each of the chucks on the gripping assembly to move simultaneously. When any one of the chucks moves to fit against the outer wall of the crucible, the chuck remains stationary relative to the crucible; the remaining chucks continue to move until all of the chucks on the driving assembly fit against the outer wall of the crucible, and the driving assembly increases the driving force output to the chucks to clamp the crucible.

[0014] In the non-centering crucible clamping mechanism as described above, the driving assembly is a cylinder, a plurality of interconnected cylinders are arranged on the cylinder, a piston and a piston rod connected to the piston are slidably arranged in the inner cavity of each cylinder, and the chuck is arranged on the piston rod;

[0015] The inner cavity of the cylinder is divided into an extension inflation cavity and a retraction inflation cavity with the piston as the boundary, the piston rod is partially located in the retraction inflation cavity, and the other part passes through the retraction inflation cavity and is connected to the chuck;

[0016] The retractable gas-filling chambers are interconnected, so that when the gripping clamp assembly is closed to clamp the crucible, the air pressure in each retractable gas-filling chamber is consistent.

[0017] In the non-centering crucible clamping mechanism as described above, the driving assembly further comprises a connecting pipe connecting adjacent retracting and filling chambers.

[0018] In the non-centering crucible clamping mechanism as described above, each of the extended gas-filled cavities is interconnected, so that when gas is supplied to the extended gas-filled cavities, each of the clamps opens synchronously.

[0019] In the non-centering crucible clamping mechanism as described above, the driving assembly further comprises a gas supply control member, and the gas supply control member is used to control the supply of compressed gas to the extending gas-filling cavity or the retracting gas-filling cavity.

[0020] The non-centering crucible clamping mechanism as described above, wherein the gas supply control member comprises an extension gas supply port connected to the extension gas charging cavity and a retraction gas supply port connected to the retraction gas charging cavity;

[0021] The drive assembly also includes an extending inflation tube and a retracting inflation tube;

[0022] The extended inflation tube communicates with the extended air supply port and the extended inflation chamber;

[0023] The retraction and inflation tube is connected with the retraction and inflation cavity.

[0024] In the non-centering crucible clamping mechanism as described above, the retracting and inflating interface is connected to the retracting and inflating tube; the retracting and inflating tube is connected to the connecting tube; and the cross-sectional radius of the retracting and inflating tube is greater than the cross-sectional radius of the connecting tube.

[0025] The non-centering crucible clamping mechanism as described above, wherein the retractable gas-filling tube comprises a first retractable gas-filling tube and a plurality of second retractable gas-filling tubes;

[0026] One end of the first retractable inflatable tube is connected to the retractable air supply port, and the other end of the first retractable inflatable tube is connected to a plurality of the second retractable inflatable tubes;

[0027] One end of each of the second retractable and inflatable tubes away from the first retractable and inflatable tubes is connected to each of the connecting tubes respectively.

[0028] The non-centering crucible clamping mechanism as described above further comprises a slide rail arranged on one side of the driving assembly, a slider is slidably provided on the slide rail, the chuck is fixedly connected to the slider, and the driving assembly drives the slider to slide on the slide rail to drive the chuck to slide on the slide rail.

[0029] In the non-centering crucible clamping mechanism as described above, the clamping head is provided with an arc-shaped clamping plate, and the arc surface of the arc-shaped clamping plate is used to fit with the outer wall of the crucible to clamp the crucible.

[0030] The beneficial effects of the utility model are:

[0031] Since the movements of the various chucks in this mechanism are not synchronized, when using this mechanism, the crucible can be clamped as long as the crucible is roughly positioned; this mechanism has low requirements on the accuracy of the visual equipment used in conjunction, which not only improves the success rate of clamping the crucible but also can adapt to grasping crucibles with irregular shapes; this mechanism is used in an environment with high temperature, large amount of dust and strong electromagnetic interference, which can not only replace manual removal of crucibles and avoid the harm to the human body caused by manual intervention in the working environment, but also has a high degree of automation, which can improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Figure 1 It is a three-dimensional diagram of the utility model;

[0034] Figure 2 yes Figure 1 Sectional view along AA direction;

[0035] Figure 3 It is a three-dimensional diagram of the non-centering crucible clamping mechanism and the crucible of the utility model;

[0036] Figure 4 yes Figure 3 Cross-sectional view along the BB direction;

[0037] The numbers in the accompanying drawings are: 1 gripping assembly, 11 chuck, 110 arc-shaped clamp, 2 driving assembly, 20 cylinder, 21-1 extending inflation chamber, 21-2 retracting inflation chamber, 211 extending inflation interface, 212 retracting inflation interface, 22 piston, 23 piston rod, 24 air supply control component, 241 extending air supply port, 242 retracting air supply port, 25 extending inflation tube, 26 retracting inflation tube, 261 first retracting inflation tube, 262 second retracting inflation tube, 27 connecting tube, 3 crucible, 41 slide rail, 42 slider. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0039] Reference Figure 1 , Figure 2 A non-centering crucible clamping mechanism comprises: a gripping assembly 1 and a driving assembly 2 connected to the gripping assembly 1; the gripping assembly 1 comprises more than three clamping heads 11; the driving assembly 2 is used to drive the gripping assembly 1 to close and open, so as to clamp and release the crucible 3;

[0040] During operation, the driving component 2 simultaneously drives each of the chucks 11 on the gripping component 1 to move. When any one of the chucks 11 moves to fit against the outer wall of the crucible 3, the chuck 11 remains stationary relative to the crucible 3; the remaining chucks 11 continue to move until all of the chucks 11 on the driving component 2 fit against the outer wall of the crucible 3, and the driving component 2 increases the driving force output to the chucks 11 to clamp the crucible 3.

[0041] When the negative electrode material of lithium battery is graphitized, the crucible is placed in the graphitization furnace and buried deep in the filling auxiliary material. Therefore, in order to take the crucible out of the auxiliary material, it is necessary to overcome the resistance of the auxiliary material to the crucible; specifically, there are more than three chucks 11. On the one hand, the three chucks can form a more stable triangle and provide a stronger gripping force; on the other hand, the clamping center of the gripping assembly 1 can be changed by adjusting the distance between each chuck 11; when in use, the driving assembly 2 drives each of the chucks 11 to move asynchronously, that is, the clamping center of the gripping assembly 1 is variable. After all the chucks 11 continue to move until they are in contact with the outer wall of the crucible 3, the driving force output to the chucks 11 is increased to clamp the crucible while overcoming the resistance of the auxiliary material to the crucible, thereby taking out the crucible.

[0042] In the clamping mechanism of the prior art, when the chucks moving in different directions clamp the crucible, the extension and retraction frequencies of the chucks are synchronized. When it is used, if the visual positioning system does not accurately position the crucible, the clamping mechanism and the crucible are not concentric, and the chuck that first contacts the crucible wall cannot continue to move due to too much resistance, and the other chucks cannot be further clamped even if they do not contact the crucible wall, which will cause clamping failure; furthermore, if the chuck that contacts the crucible wall continues to retract inward after encountering resistance, the crucible will be locally subjected to excessive force and the crucible will be damaged;

[0043] Compared with the prior art, since the movements of each chuck are not synchronized, when using this mechanism, the crucible can be clamped as long as the crucible is roughly positioned; this mechanism has low requirements on the accuracy of the visual equipment used in conjunction, which not only improves the success rate of clamping the crucible but also can adapt to grasping crucibles with irregular shapes; this mechanism is used in an environment with high temperature, large amount of dust and strong electromagnetic interference, which can not only replace manual removal of crucibles and avoid the harm to the human body caused by manual intervention in the working environment, but also has a high degree of automation, which can improve production efficiency.

[0044] Furthermore, the driving assembly 2 comprises a plurality of cylinders 20, wherein a piston 22 and a piston rod 23 connected to the piston 22 are slidably disposed in the cylinder 20, and the chuck 11 is disposed on the piston rod 23;

[0045] The inner cavity of the cylinder 20 is divided into an extending air-filling cavity 21-1 and a retracting air-filling cavity 21-2 by the piston 22. Part of the piston rod 23 is located in the retracting air-filling cavity 21-2, and the other part passes through the retracting air-filling cavity 21-2 and is connected to the chuck 11.

[0046] The retractable gas-filling chambers 21 - 2 are interconnected, so that when the clamp assembly 1 is closed to clamp the crucible 3 , the air pressure in the retractable gas-filling chambers 21 - 2 is consistent.

[0047] Moreover, each of the retraction and inflation chambers 21-2 is interconnected, which can ensure that after the chuck 11 on the gripping assembly 1 is in contact with the outer wall of the crucible 3, when compressed gas is introduced into the retraction and inflation interface 212, the pressure can be quickly and evenly distributed, so that the force exerted by each chuck 11 on the crucible 3 is equal, thereby avoiding excessive clamping force exerted by a single chuck 11 on a local part of the crucible, thereby damaging the crucible.

[0048] like Figure 4 As shown, specifically, the driving assembly 2 also includes a connecting pipe 27 connecting each adjacent retraction and inflation chamber 21-2, and the connecting pipe 27 is used to balance the adjacent retraction and inflation chambers 21-2, further avoiding excessive clamping force applied locally to the crucible by a single chuck 11, thereby damaging the crucible.

[0049] Specifically, the retraction and inflation cavity 21 - 2 is provided with a retraction and inflation interface 212 , and the number of the retraction and inflation interface 212 is twice the number of the chuck 11 ; the connecting pipe 27 connects the adjacent retraction and inflation interfaces 212 to each other to achieve rapid balancing of the air pressure in each retraction and inflation cavity 21 - 2 .

[0050] The extending inflation cavity 21-1 is provided with an extending inflation interface 211;

[0051] Furthermore, each of the extending inflation chambers 21 - 1 is interconnected, so that when air is supplied to the extending inflation chambers 21 - 1 , each of the clamps 11 opens synchronously.

[0052] There are two ways to interconnect the multiple extended air-filled cavities 21-1: 1. The multiple extended air-filled cavities 21-1 can be interconnected by setting a connecting air pipe; 2. Figure 4 As shown, the plurality of protruding air-filling chambers 21 - 1 share a common air-filling chamber; such an arrangement can reduce the volume of the protruding air-filling chamber 21 - 1, reduce the arrangement of the components of the drive assembly 2, save manufacturing costs, and reduce the space occupied by the non-centering crucible clamping mechanism.

[0053] More specifically, a plurality of the interconnected extending inflation chambers 21-1 are provided with an extending inflation interface 211; the advantage of such a configuration is that when compressed gas is introduced into the extending inflation interface 211, the piston rod 23 drives each clamp 11 on the gripping assembly 1 to expand synchronously until the opening diameter of the gripping assembly 1 is larger than the diameter of the crucible 3, thereby preparing for clamping the crucible 3.

[0054] Specifically, the driving assembly 2 also includes an air supply control component 24, which is used to control the supply of compressed gas to the extending inflation chamber 21-1 or the retracting inflation chamber 21-2; when the compressed gas is supplied to the extending inflation chamber 21-1, each of the chucks 11 opens synchronously; when the compressed gas is supplied to the retracting inflation chamber 21-2, each of the chucks 11 closes to clamp the crucible 3.

[0055] Specifically, the air supply control component 24 is a solenoid valve.

[0056] More specifically, the air supply control member 24 includes an extension air supply port 241 connected to the extension air charging chamber 21 - 1 and a retraction air supply port 242 connected to the retraction air charging chamber 21 - 2 ;

[0057] The driving assembly 2 also includes an extending inflation tube 25 and a retracting inflation tube 26;

[0058] The extended air-filling pipe 25 is connected with the extended air supply port 241 and the extended air-filling cavity 21 - 1 ;

[0059] The retracting air-inflating tube 26 communicates with the retracting air supply port 242 and the retracting air-inflating cavity 21 - 2 .

[0060] Specifically, the gas supply control part 24 opens the extending gas supply port 241, and the compressed gas flows through the extending gas charging pipe 25 to the extending gas charging interface 211, and at the same time, the retracting gas charging interface 212 is exhausted, so as to push the piston 22 and the piston rod 23 to extend, and drive the gripping assembly 1 to completely cover the radial cross-sectional area of ​​the crucible 3; then, the gas supply control part 24 opens the retracting gas supply port 242, and the compressed gas flows through the retracting gas charging pipe 26 to the retracting gas charging interface 212, and at the same time, the extending gas charging interface 211 is exhausted; the piston 22 and The piston rod 23 retracts, and the driving component 2 outputs equal power to each chuck 11; after any chuck 11 on the grasping and clamping component 1 is in contact with the outer wall of the crucible, when the power output by the driving component on the chuck 11 is equal to the resistance of the crucible 3, the relative position of the chuck 11 and the crucible 3 remains unchanged; each chuck 11 repeats the above process until the grasping and clamping component 1 clamps the crucible 3; finally, the final clamping force of each chuck 11 on the grasping and clamping component 1 is equal, the crucible 3 is evenly stressed, and the service life is extended.

[0061] More specifically, the retraction and inflation interface 212 is connected to the retraction and inflation tube 26; the retraction and inflation tube 26 is connected to the connecting tube 27; the cross-sectional radius of the retraction and inflation tube 26 is larger than the cross-sectional radius of the connecting tube 27; the cross-sectional radius of the extending inflation tube 25 is larger than the cross-sectional radius of the retraction and inflation tube 26, so as to ensure that when compressed gas is introduced into the retraction and inflation interface 212, it is helpful to control the closing rate of the chuck 11.

[0062] More specifically, if Figure 1 As shown, the retractable air-inflating tube 26 includes a first retractable air-inflating tube 261 and a plurality of second retractable air-inflating tubes 262;

[0063] One end of the first retractable air-filling tube 261 is connected to the retractable air supply port 242 , and the other end of the first retractable air-filling tube 261 is connected to a plurality of the second retractable air-filling tubes 262 ;

[0064] One end of each of the second retractable and inflatable tubes 262 away from the first retractable and inflatable tube 261 is connected to each of the connecting tubes 27 respectively;

[0065] Since each connecting tube 27 connects the adjacent retraction and inflation chambers 21-2 to each other, each of the second retraction and inflation tubes 262 is correspondingly connected to each connecting tube 27, so that when the retraction air supply port 242 supplies air, the gas passes through the first retraction and inflation tube 261 to the second retraction and inflation tube 262, and the air pressure change rate in each retraction and inflation chamber 21-2 tends to be consistent, so that the final clamping force of each chuck 11 on the gripping assembly 1 is equal.

[0066] Furthermore, the non-centering crucible clamping mechanism also includes a slide rail 41 arranged on one side of the driving component 2, and a slider 42 is slidably provided on the slide rail 41, and the chuck 11 is fixedly connected to the slider 42, and the driving component 2 drives the slider 42 to slide on the slide rail 41 to drive the chuck 11 to slide on the slide rail 41; in this way, the chuck 1 is connected to the slide rail 41 and the piston rod 23, and the slide rail 41 and the piston rod 23 each provide a connection point for the chuck 11, so that the chuck 11 is more stable and not easily affected by external factors to produce vibration and shaking, resulting in failure to clamp the crucible.

[0067] Furthermore, the chuck 11 is provided with an arc-shaped clamping plate 110, and the arc surface of the arc-shaped clamping plate 110 is used to fit with the outer wall of the crucible 3, that is, the arc-shaped clamping plate 110 contacts the outer wall surface of the crucible 3 to clamp the crucible 3. The contact between the arc-shaped clamping plate 110 and the outer wall surface of the crucible 3 improves the stability of the chuck 11 clamping the crucible 3, and reduces the shaking and deviation of the crucible during the process of clamping the crucible 3.

[0068] Specifically, the plurality of arc-shaped clamping plates 110 are arranged on the same horizontal plane, so as to further improve the stability of the clamping head 11 in clamping the crucible 3 .

[0069] Furthermore, the clamps 11 are evenly distributed along the circumference of the crucible 3 , so that the clamping force applied by the clamp assembly 1 to the crucible 3 is evenly applied, thereby ensuring the stability of the clamped crucible 3 .

[0070] like Figure 1-Figure 4 As shown, more specifically, there are four clamps 11.

[0071] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A non-centering crucible clamping mechanism, characterized in that: include: A gripper assembly (1), comprising more than three grippers (11); A driving assembly (2) connected to the gripping assembly (1) and used to drive the gripping assembly (1) to close and open so as to clamp and release the crucible (3); During operation, the driving component (2) simultaneously drives each of the chucks (11) on the gripping component (1) to move; when any one of the chucks (11) moves to fit the outer wall of the crucible (3), the chuck (11) remains stationary relative to the crucible (3); the remaining chucks (11) continue to move until all of the chucks (11) on the driving component (2) fit the outer wall of the crucible (3), and the driving component (2) increases the driving force output to the chucks (11) to clamp the crucible (3).

2. The non-centering crucible clamping mechanism according to claim 1, characterized in that: The driving assembly (2) comprises a plurality of cylinders (20), wherein a piston (22) and a piston rod (23) connected to the piston (22) are slidably disposed in the cylinder (20), and the chuck (11) is disposed on the piston rod (23); The inner cavity of the cylinder (20) is divided into an extended inflation cavity (21-1) and a retracted inflation cavity (21-2) with the piston (22) as the boundary, and the piston rod (23) is arranged in the retracted inflation cavity (21-2), a part of the piston rod (23) is located in the retracted inflation cavity (21-2), and the other part passes through the retracted inflation cavity (21-2) and is connected to the chuck (11); The retractable gas-filling chambers (21-2) are interconnected, so that when the gripping assembly (1) is closed to clamp the crucible (3), the gas pressure in the retractable gas-filling chambers (21-2) is consistent.

3. The non-centering crucible clamping mechanism according to claim 2, characterized in that: The driving assembly (2) further comprises a connecting pipe (27) for connecting adjacent retractable inflation chambers (21-2).

4. The non-centering crucible clamping mechanism according to claim 3, characterized in that: The extending air-filling chambers (21-1) are interconnected, so that when air is supplied to the extending air-filling chambers (21-1), the clamps (11) are opened synchronously.

5. The non-centering crucible clamping mechanism according to claim 4, characterized in that: The driving assembly (2) further comprises an air supply control component (24), wherein the air supply control component (24) is used to control the supply of compressed gas to the extending inflation chamber (21-1) or the retracting inflation chamber (21-2).

6. The non-centering crucible clamping mechanism according to claim 5, characterized in that: The air supply control member (24) comprises an extension air supply port (241) connected to the extension air-charging chamber (21-1) and a retraction air supply port (242) connected to the retraction air-charging chamber (21-2); The driving assembly (2) further comprises an extending inflation tube (25) and a retracting inflation tube (26); The extending inflation tube (25) is connected to the extending air supply port (241) and the extending inflation chamber (21-1); The retractable air-inflating tube (26) is connected to the retractable air supply port (242) and the retractable air-inflating cavity (21-2).

7. The non-centering crucible clamping mechanism according to claim 6, characterized in that: The retractable inflation tube (26) is connected to the connecting tube (27); the cross-sectional radius of the retractable inflation tube (26) is greater than the cross-sectional radius of the connecting tube (27).

8. The non-centering crucible clamping mechanism according to claim 7, characterized in that: The retractable inflation tube (26) comprises a first retractable inflation tube (261) and a plurality of second retractable inflation tubes (262); One end of the first retractable air-inflating tube (261) is connected to the retractable air supply port (242), and the other end of the first retractable air-inflating tube (261) is connected to a plurality of the second retractable air-inflating tubes (262); One end of each of the second retractable and inflatable tubes (262) away from the first retractable and inflatable tube (261) is respectively connected to a corresponding one of the connecting tubes (27).

9. The non-centering crucible clamping mechanism according to claim 1, characterized in that: The non-centering crucible clamping mechanism further comprises a slide rail (41) arranged on one side of the driving component (2), a slider (42) being slidably arranged on the slide rail (41), the chuck (11) being fixedly connected to the slider (42), and the driving component (2) driving the slider (42) to slide on the slide rail (41) to drive the chuck (11) to slide on the slide rail (41).

10. The non-centering crucible clamping mechanism according to claim 1, characterized in that: The chuck (11) is provided with an arc-shaped clamping plate (110), and the arc surface of the arc-shaped clamping plate (110) is used to fit with the outer wall of the crucible (3) so as to clamp the crucible (3).

Citation Information

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