Crucible clamp

Abstract

This application belongs to the field of clamping technology, specifically relating to a crucible clamp, including a clamping part for clamping a crucible and a connecting part for connecting a robotic arm; wherein, the clamping part has multiple clamping slots with one side opening, and each clamping slot includes two first supporting structures located at its two open ends, the first supporting structures being used to conform to the outer wall of the crucible. By providing multiple clamping slots with one side openings in the clamping part, and configuring first supporting structures matching the outer wall of the crucible at both ends of the openings of each clamping slot, surface contact and conformity with the conical crucibles commonly used in fire assays (larger at the top and smaller at the bottom) can be achieved, thereby significantly improving the stability and reliability of clamping, effectively preventing the crucible from shaking, tilting, or falling off during transfer, not only improving operational safety, but also supporting efficient batch transfer, reducing manual intervention, and reducing the risk of operators being exposed to high temperatures and harmful environments, making it suitable for automated fire assay analysis systems.

Description

Technical Field

[0001] This application belongs to the field of fixture technology, specifically relating to a crucible fixture. Background Technology

[0002] In fire assay analysis, the crucible, as the key container holding the sample, is crucial for the accuracy of the experiment and the safety of the operators. Traditional fire assay operations typically involve using a crucible fork or similar manual tools to individually pick up crucibles and place them into the high-temperature furnace. This method is not only inefficient and unsuitable for processing large batches of samples, but also exposes operators to prolonged exposure to high-temperature radiation and harmful gases, posing significant occupational health risks.

[0003] To improve efficiency, some existing technologies attempt to introduce batch jigs with multiple gripping slots to grip multiple crucibles at once. However, the gripping slots of these jigs often adopt a regular arc surface structure with a standard circular inner wall, lacking effective adaptation to the shape of the crucible. In practical applications, crucibles used in fire assays are usually conical in shape, wider at the top and narrower at the bottom. When the gripping slot with the regular arc surface contacts the conical crucible, only local point or line contact is possible, failing to achieve surface fit. This leads to the crucible easily shaking, tilting, or even falling off during movement, seriously affecting the stability and safety of the transfer process. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a crucible clamp that improves the fit with the crucible, thereby improving the stability of the crucible during movement.

[0005] This application provides a crucible clamp, including: A clamping part for clamping a crucible, the clamping part having a plurality of clamping slots with an opening on one side, the clamping slot including at least two first supporting structures respectively close to two opening ends of itself, the first supporting structures being used to fit against the outer wall of the crucible and cooperate with other parts of the clamping slot to form multi-directional support for the outer wall of the crucible. Connector for attaching to a robotic arm.

[0006] Optionally, the clamping groove further includes a second support structure between the two first support structures, the second support structure being used to fit against the outer wall of the crucible.

[0007] Optionally, the surface of the first support structure that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface.

[0008] Optionally, the number of the first supporting structures is 2-10.

[0009] Optionally, when the second support structure is a conical surface, the angle between the two ends and the two lines connecting its own conical axis is 5°-180°, and when the two ends of the second support structure are spaced apart from the two first support structures, the spaced areas have clearance grooves.

[0010] Optionally, the surface of the second support structure that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface.

[0011] Optionally, the number of the second supporting structures is 1 to 10.

[0012] Optionally, when the second support structure is a conical surface, the angle between the two ends of the second support structure and the two lines connecting its own conical axis is 10°-15°, and when the first support structure is a conical surface, the angle between the two ends of the first support structure and the two lines connecting its own conical axis is 10°-15°.

[0013] In addition, this application also provides a crucible clamp, including: A clamping part for clamping a crucible, the clamping part having a plurality of clamping slots with an opening on one side, the clamping slot including two combined clamping surfaces that are symmetrical to each other and distributed along the thickness direction of the clamping part, each of the combined clamping surfaces including at least two first supporting structures respectively close to its two opening ends, the first supporting structures being used to fit against the outer wall of the crucible and cooperate with other parts of the clamping slot to form multi-directional support for the outer wall of the crucible. Connector for attaching to a robotic arm.

[0014] Optionally, each of the combined clamping surfaces further includes a second support structure between the two first support structures, the second support structure being used to conform to the outer wall of the crucible.

[0015] Optionally, the surface of the first support structure that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface.

[0016] Optionally, the number of the first supporting structures is 4-12.

[0017] Optionally, when the second support structure is a conical surface, the angle between the two ends and the two lines connecting its own conical axis is 5°-180°, and when the two ends of the second support structure are spaced apart from the two first support structures, the spaced area has a clearance groove.

[0018] Optionally, the surface of the second support structure that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface.

[0019] Optionally, the number of the second supporting structures is 2-10.

[0020] Optionally, when the second support structure is a conical surface, the angle between the two ends of the second support structure and the two lines connecting its own conical axis is 10°-15°, and when the first support structure is a conical surface, the angle between the two ends of the first support structure and the two lines connecting its own conical axis is 10°-15°.

[0021] Optionally, the connecting part has a mounting groove for connecting with a robotic arm, and the mounting groove has at least two mounting holes that penetrate the connecting part.

[0022] Optionally, the gripping part has at least two connection holes to improve the connection strength with the robotic arm.

[0023] The beneficial effects of this application are that by setting multiple gripping slots with openings on one side in the gripping part, and configuring a first support structure matching the outer wall of the crucible at both ends of the opening of each gripping slot, it can achieve surface contact and fit with the conical crucibles commonly used in fire assays, which are larger at the top and smaller at the bottom, thereby significantly improving the stability and reliability of the gripping. Compared with the traditional clamps that use standard arc-shaped gripping slots, which can only achieve point or line contact, this structure effectively prevents the crucible from shaking, tilting or falling off during the transfer process. It not only improves operational safety, but also supports efficient batch transfer, reduces manual intervention, and reduces the risk of operators being exposed to high temperatures and harmful environments. It is suitable for automated fire assay analysis systems. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the first type of crucible clamp provided in the embodiments of this application; Figure 2 for Figure 1 Enlarged view of area A in the image; Figure 3 A top view of the first type of crucible clamp provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the second type of crucible clamp provided in the embodiments of this application; Figure 5 for Figure 4 Enlarged view of area B in the image; Figure 6 This is a schematic diagram of the structure of the fifth type of crucible clamp provided in the embodiments of this application; Figure 7 for Figure 6 Enlarged view of area E in the image; Figure 8 This is a schematic diagram of the structure of the third type of crucible clamp provided in the embodiments of this application; Figure 9 for Figure 8 Enlarged view of area C in the image; Figure 10 This is a schematic diagram of the structure of the fourth type of crucible clamp provided in the embodiments of this application; Figure 11 for Figure 10 Enlarged view of area D in the image.

[0025] In the figure: 100, clamping part; 110, clamping groove; 111, first support structure; 112, second support structure; 113, clearance groove; 120, connecting hole; 200, connecting part; 210, mounting groove; 220, mounting hole. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] like Figure 1-7 As shown, the present application provides a crucible clamp, including a clamping part 100 for clamping a crucible and a connecting part 200 for connecting a robotic arm; wherein, the clamping part 100 has a plurality of clamping slots 110 with an opening on one side, and the clamping slot 110 includes at least two first supporting structures 111 respectively close to two opening ends of itself, the first supporting structures 111 are used to fit against the outer wall of the crucible and cooperate with other parts of the clamping slot 110 to form multi-directional support for the outer wall of the crucible.

[0028] Compared with the prior art, the crucible clamp provided in this application, by setting multiple clamping grooves 110 with openings on one side in the clamping part 100, and configuring a first support structure 111 matching the outer wall of the crucible at both ends of the clamping groove 110, can achieve multi-directional point contact or surface contact with the conical crucibles commonly used in fire assays, which are larger at the top and smaller at the bottom, thereby significantly improving the stability and reliability of clamping. Compared with the traditional clamps using standard arc-shaped clamping grooves 110, which can only achieve point or line contact, this structure effectively prevents the crucible from shaking, tilting or falling off during the transfer process. It not only improves the safety of operation, but also supports batch and efficient transfer, reduces manual intervention, and reduces the risk of operators being exposed to high temperature and harmful environment. It is suitable for automated fire assay analysis systems.

[0029] In one possible implementation, the clamping groove 110 further includes a second support structure 112 between two first support structures 111, the second support structure 112 being used to fit against the outer wall of the crucible.

[0030] Specifically, the gripping groove 110 is composed of two first support structures 111 located at the open end and a second support structure 112 between them. The three conical surfaces are continuously arranged along the axial direction of the gripping groove 110, and their taper matches the taper of the outer wall of the crucible used for fire assay. When gripping the crucible, the outer wall of the crucible simultaneously fits with the first support structure 111 and the second support structure 112, forming multi-segment surface contact, which further improves the contact area and stability of the gripping, effectively preventing the crucible from shaking or slipping during the movement, lifting or rotating of the robotic arm, thereby achieving a more reliable and safer batch transfer operation.

[0031] In one possible implementation, the surface of the first support structure 111 that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface. Specifically, the surface of the first support structure 111 that contacts the outer wall of the crucible is designed to be one of a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface, the specific choice depending on the shape characteristics of the crucible and the clamping requirements. In implementation, if the crucible has a common conical structure that is larger at the top and smaller at the bottom, a matching conical surface is preferred to achieve surface fit and uniform force bearing; if enhanced anti-slip or positioning functions are required, a pyramidal surface with guide edges can be selected; for crucibles with special curvature or an arc-shaped bottom, a spherical or parabolic surface can be used to improve contact compatibility.

[0032] In one possible implementation, the number of first support structures 111 is 2-10. The specific number is optimized according to the number of crucibles that the fixture needs to hold simultaneously and the requirements for clamping stability, to ensure that each crucible can obtain sufficient and balanced support and positioning during the transfer process.

[0033] In one possible implementation, such as Figure 4 and Figure 5 When the second support structure 112 is a conical surface, the angle between the two ends and the two lines connecting its own conical axis is 5°-180°, and when the two ends of the second support structure 112 are distributed at intervals with the two first support structures 111, the interval area has a clearance groove 113.

[0034] Specifically, the angle between the two ends of the second support structure 112 located in the middle of the clamping groove 110 and the straight line connecting it to its own conical axis is controlled within the range of 5°-180°. The larger the angle, the larger the contact area between the second support structure 112 and the outer wall of the crucible. At the same time, there is a gap between the second support structure 112 and the first support structures 111 on both sides. This gap is provided with a clearance groove 113, which is used to avoid the transition surface of the outer wall of the crucible or the local protrusion caused by manufacturing tolerance during the clamping process, avoid rigid interference, and ensure that the crucible can be smoothly inserted and achieve effective contact of multiple conical surfaces. This improves the compatibility and adaptability of the fixture to crucibles of different specifications while ensuring clamping stability.

[0035] In one possible implementation, the surface of the second support structure 112 that contacts the outer wall of the crucible is a conical, pyramidal, spherical, or parabolic surface. Specifically, the most suitable contact surface type is selected based on the actual geometric characteristics of the crucible (such as taper, curvature, or bottom transition shape): for example, for a standard conical crucible that is larger at the top and smaller at the bottom, a conical surface is preferred to achieve a large-area fit; if it is necessary to enhance clamping friction or guidance, a pyramidal surface with ridges can be selected; while a spherical or parabolic surface is suitable for areas of the crucible with large local curvature changes to improve contact compatibility and stress distribution uniformity. This contact surface is precision-machined and integrated into the second support structure 112, working in conjunction with the first support structure to form multi-point or multi-segment support during clamping, further improving the stability, anti-slip properties, and safety of crucible clamping, making it suitable for high-precision, automated fire assay analysis scenarios.

[0036] In one possible implementation, the number of second support structures 112 is 1-10. The specific number is optimized according to the number of crucibles that the fixture needs to hold simultaneously and the requirements for clamping stability, to ensure that each crucible can obtain sufficient and balanced support and positioning during the transfer process.

[0037] In one possible implementation, when the second support structure 112 is a conical surface, the angle between the two ends of the second support structure 112 and the two lines connecting its own conical axis is 10°-15°. When the first support structure 111 is a conical surface, the angle between the two ends of the first support structure 111 and the two lines connecting its own conical axis is 10°-15°. Thus, the contact surfaces of the second support structure 112 and the two first support structures 111 with the crucible are approximately equal. Therefore, when clamping the conical crucible, the second support structure 112 and the two first support structures 111 can form similar contact angles and contact areas with the outer wall of the crucible. This design ensures that the clamping groove 110 provides uniform support to the crucible at multiple points and in multiple segments along the axial direction, significantly improving the overall fit and clamping stability, and effectively preventing crucible shaking, tilting, or slippage caused by local stress concentration or poor contact.

[0038] In another possible implementation, such as Figure 8 and Figure 9 As shown, this application also provides a crucible clamp, including: a clamping part 100 for clamping a crucible and a connecting part 200 for connecting a robotic arm; wherein, the clamping part 100 has a plurality of clamping slots 110 with an opening on one side, and the clamping slots 110 include two combined clamping surfaces that are symmetrically distributed along the thickness direction of the clamping part 100. Each combined clamping surface includes at least two first supporting structures 111 respectively close to its two open ends. The first supporting structures 111 are used to conform to the outer wall of the crucible and cooperate with other parts of the clamping slots 110 to form multi-directional support for the outer wall of the crucible. In this way, the crucible clamp can clamp the crucible regardless of which side faces upwards, and the connecting part 200 faces the robotic arm.

[0039] Specifically, this crucible clamp can effectively grip and stably support the crucible regardless of which side is used, achieving bidirectional usability. This design not only improves the flexibility and practicality of the clamp but also further enhances the convenience and efficiency of operation, making it particularly suitable for situations requiring frequent adjustments to the clamp's orientation or for operations in space-constrained environments. Furthermore, by ensuring stable clamping force from both sides, it also increases the safety and reliability of the experimental process.

[0040] In one possible implementation, each combined clamping surface further includes a second support structure 112 between the two first support structures 111, the second support structure 112 being used to conform to the outer wall of the crucible.

[0041] Specifically, each combined clamping surface is composed of two first support structures 111 located at the open end and a second support structure 112 between them. The three are continuously arranged along the axial direction of the clamping groove 110, and their tapers all match the conical profile of the outer wall of the target crucible. In practice, the fixture is precision-machined to ensure that the second support structure 112 and the first support structure 111 form a smooth transition multi-segment fit structure. When the crucible is inserted into the clamping groove 110, its outer wall simultaneously makes surface contact with the first support structure 111 and the second support structure 112, thereby providing multi-point support distributed along the axial direction during the clamping process, significantly improving clamping stability and centering. This structure not only enhances the crucible's wrapping and anti-slip capabilities, but also takes into account the adaptability to manufacturing tolerances and minor differences in crucible dimensions, making it suitable for the efficient, safe, and reliable transfer of multiple conical crucibles by automated robotic arms.

[0042] In one possible implementation, the surface of the first support structure 111 that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface. Specifically, the surface of the first support structure 111 that contacts the outer wall of the crucible is designed to be one of a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface, the specific choice depending on the shape characteristics of the crucible and the clamping requirements. In implementation, if the crucible has a common conical structure that is larger at the top and smaller at the bottom, a matching conical surface is preferred to achieve surface fit and uniform force bearing; if enhanced anti-slip or positioning functions are required, a pyramidal surface with guide edges can be selected; for crucibles with special curvature or an arc-shaped bottom, a spherical or parabolic surface can be used to improve contact compatibility.

[0043] In one possible implementation, the number of first support structures 111 is 4-12. The specific number is optimized according to the number of crucibles that the fixture needs to hold simultaneously and the requirements for clamping stability, to ensure that each crucible can obtain sufficient and balanced support and positioning during the transfer process.

[0044] In one possible implementation, such as Figure 10 and Figure 11 When the second support structure 112 is a conical surface, the angle between the two ends of the second support structure 112 and the two lines connecting its own conical axis is 5°-180°, and when the two ends of the second support structure 112 are distributed at intervals with the two first support structures 111, the interval area has a clearance groove 113.

[0045] Specifically, the function of the clearance groove 113 is to provide clearance space for the transition area of ​​the outer wall of the crucible, the manufacturing fillet or dimensional tolerance during the clamping process, so as to avoid clamping interference or uneven force on the crucible due to rigid contact. This structure not only retains the effective fit and support of the second support structure 112 and the first support structure 111 for the crucible, but also improves the compatibility and adaptability of the clamp to crucibles of different batches or specifications, thereby ensuring clamping stability while realizing smooth and reliable automated pick-and-place operations.

[0046] In one possible implementation, the surface of the second support structure 112 that contacts the outer wall of the crucible is a conical, pyramidal, spherical, or parabolic surface. Specifically, the most suitable contact surface type is selected based on the actual geometric characteristics of the crucible (such as taper, curvature, or bottom transition shape): for example, for a standard conical crucible that is larger at the top and smaller at the bottom, a conical surface is preferred to achieve a large-area fit; if it is necessary to enhance clamping friction or guidance, a pyramidal surface with ridges can be selected; while a spherical or parabolic surface is suitable for areas of the crucible with large local curvature changes to improve contact compatibility and stress distribution uniformity. This contact surface is precision-machined and integrated into the second support structure 112, working in conjunction with the first support structure to form multi-point or multi-segment support during clamping, further improving the stability, anti-slip properties, and safety of crucible clamping, making it suitable for high-precision, automated fire assay analysis scenarios.

[0047] In one possible implementation, the number of second support structures 112 is 2-10. The specific number is optimized based on the number of crucibles that the fixture needs to hold simultaneously and the requirements for clamping stability, ensuring that each crucible receives sufficient and balanced support and positioning during the transfer process. In one possible implementation, when the second support structure 112 is a conical surface, the angle between the two ends of the second support structure 112 and the two lines connecting its own conical axis is 10°-15°. When the first support structure 111 is a conical surface, the angle between the two ends of the first support structure 111 and the two lines connecting its own conical axis is 10°-15°. Thus, the contact surfaces of the second support structure 112 and the two first support structures 111 with the crucible are approximately equal. Therefore, when clamping the conical crucible, the second support structure 112 and the two first support structures 111 can form similar contact angles and contact areas with the outer wall of the crucible. This design ensures that the clamping groove 110 provides uniform support to the crucible at multiple points and in multiple segments along the axial direction, significantly improving the overall fit and clamping stability, and effectively preventing crucible shaking, tilting, or slippage caused by local stress concentration or poor contact.

[0048] In one possible implementation, the connecting part 200 has a mounting groove 210 for connecting with a robotic arm, and the mounting groove 210 has at least two mounting holes 220 that penetrate the connecting part 200.

[0049] Specifically, the connecting part 200 is initially aligned and positioned with the robotic arm through the mounting groove 210 thereon, ensuring that the clamp can be securely installed on the robotic arm. Through at least two mounting holes 220, the clamp can be firmly fixed to the robotic arm using bolts, pins or other fasteners. The multiple mounting holes 220 not only improve the stability of the connection, but also allow the position and angle of the clamp to be adjusted according to actual needs, increasing the flexibility of use.

[0050] In one possible implementation, the gripping part 100 has at least two connection holes 120 to improve the connection strength with the robotic arm.

[0051] Specifically, the clamping part 100 is provided with at least two connecting holes 120. These connecting holes 120 work in conjunction with the mounting structure of the connecting part 200 to further enhance the connection strength and structural rigidity between the crucible clamp and the robotic arm. The connecting holes 120 are provided through the thickness direction of the clamping part 100 and are aligned with the mounting holes 220 on the connecting part 200. The clamping part 100, the connecting part 200, and the robotic arm are fixed at multiple points by bolts, pins, or other fasteners, which effectively distributes the load generated by the weight of the crucible, acceleration, or vibration during the clamping process and prevents the clamp from loosening, deflecting, or breaking during operation.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0053] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A crucible gripper characterized by, include: A clamping part (100) for clamping a crucible, the clamping part (100) having a plurality of clamping slots (110) with an opening on one side, the clamping slots (110) including at least two first support structures (111) respectively close to two of their own opening ends, the first support structures (111) being used to fit against the outer wall of the crucible and cooperate with other parts of the clamping slots (110) to form multi-directional support for the outer wall of the crucible; Connector (200) for connecting the robotic arm.

2. The crucible clamp of claim 1, wherein, The clamping groove (110) further includes a second support structure (112) located between at least two of the first support structures (111), the second support structure (112) being used to fit against the outer wall of the crucible; And / or, the surface of the first support structure (111) that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface; And / or, the number of the first support structure (111) is 2-10.

3. The crucible clamp of claim 2, wherein, When the two ends of the second support structure (112) are distributed at intervals with the two first support structures (111), the interval area has a relief groove (113). And / or, the surface of the second support structure (112) that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface; And / or, the number of the second support structure (112) is 1-10.

4. The crucible clamp of claim 3, wherein, When the second support structure (112) is a conical surface, the angle between the two ends of the second support structure (112) and the two lines connecting its own conical axis is 10°-15°. When the first support structure (111) is a conical surface, the angle between the two ends of the first support structure (111) and the two lines connecting its own conical axis is 10°-15°.

5. A crucible gripper characterized by, include: A clamping part (100) for clamping a crucible has a plurality of clamping slots (110) with an opening on one side. Each clamping slot (110) includes two combined clamping surfaces that are symmetrical to each other and distributed along the thickness direction of the clamping part (100). Each combined clamping surface includes at least two first support structures (111) that are close to its two opening ends. The first support structures (111) are used to fit against the outer wall of the crucible and cooperate with other parts of the clamping slot (110) to form multi-directional support for the outer wall of the crucible. Connector (200) for connecting the robotic arm.

6. The crucible clamp of claim 5, wherein, Each of the combined clamping surfaces also includes a second support structure (112) between the two first support structures (111), the second support structure (112) being used to fit against the outer wall of the crucible; And / or, the surface of the first support structure (111) that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface; And / or, the number of the first support structure (111) is 4-12.

7. The crucible gripper of claim 6, wherein, When the second support structure (112) is a conical surface, the angle between the two ends and the two lines connecting the two ends to the axis of the cone is 5°-180°, and when the two ends of the second support structure (112) are spaced apart from the two first support structures (111), the spaced area has a clearance groove (113). And / or, the surface of the second support structure (112) that contacts the outer wall of the crucible is a conical surface, a pyramidal surface, a spherical surface, or a parabolic surface; And / or, the number of the second support structure (112) is 2-10.

8. The crucible clamp of claim 7, wherein, When the second support structure (112) is a conical surface, the angle between the two ends of the second support structure (112) and the two lines connecting its own conical axis is 10°-15°. When the first support structure (111) is a conical surface, the angle between the two ends of the first support structure (111) and the two lines connecting its own conical axis is 10°-15°.

9. The crucible clamp of claim 1 or 5, wherein, The connecting part (200) has a mounting groove (210) for connecting with a robotic arm, and at least two mounting holes (220) are provided in the mounting groove (210) that penetrate the connecting part (200).

10. The crucible clamp of claim 9, wherein, The gripping part (100) has at least two connection holes (120) to improve the connection strength with the robotic arm.

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