Vacuum furnace lifting mechanism

Abstract

This application relates to the field of lifting mechanism technology, and discloses a vacuum furnace lifting mechanism, including a U-shaped frame, a U-shaped plate, a furnace bottom platform, springs, shock absorbers, and a driving component. In use, driven by the driving component, the U-shaped plate moves along the height direction of the U-shaped frame. Then, supported by multiple springs and multiple shock absorbers, the furnace bottom platform moves along the height direction of the U-shaped frame along the U-shaped plate. This ultimately achieves the lifting function of the furnace bottom platform, enabling the lifting of vacuum furnaces, etc. Furthermore, when the vacuum furnace is placed on the furnace bottom platform, the multiple springs act as a buffer. Simultaneously, the multiple shock absorbers act as vibration dampers, thereby suppressing the jumping of the multiple springs and quickly maintaining the stability of the furnace bottom platform.

Description

Technical Field

[0001] This application relates to the field of lifting mechanism technology, and in particular to a vacuum furnace lifting mechanism. Background Technology

[0002] A related technology (publication number: CN220379298U) discloses a lifting and supporting mechanism for a vacuum furnace, including a column. A motor is mounted on the column, and the motor is connected to a lead screw. A support platform is slidably mounted on the column, and a lifting nut is fixedly mounted on the support platform, with the lifting nut threadedly connected to the lead screw. A support rod is fixedly mounted on the support platform, and a furnace bottom platform is detachably connected to the support rod. A buffer spring is sleeved on the support rod, with one end of the buffer spring abutting against the support platform, and the other end of the buffer spring connected to a buffer block, which is sleeved on the support rod.

[0003] In the process of implementing the technical solution disclosed herein, it was found that the above technical solution has at least the following problems:

[0004] This vacuum furnace lifting and supporting mechanism uses a lead screw driven by a motor to rotate, which in turn raises or lowers the supporting platform via a lifting nut, ultimately achieving the lifting function of the furnace bottom platform. Multiple buffer springs are used to provide cushioning. However, these springs also increase the vibration of the furnace bottom platform during cushioning. Furthermore, using a lead screw for lifting is costly and inconvenient for subsequent maintenance.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as an introduction to the detailed explanations that follow.

[0007] This disclosure provides a vacuum furnace lifting mechanism to solve the problems mentioned in the background art.

[0008] In some technical solutions, the vacuum furnace lifting mechanism includes: a U-shaped frame; a U-shaped plate located inside the U-shaped frame; a furnace bottom platform located inside the U-shaped plate; springs evenly installed between the furnace bottom platform and the bottom wall of the U-shaped plate along the height direction of the U-shaped frame; shock absorbers evenly distributed between the furnace bottom platform and the bottom wall of the U-shaped plate, wherein one end of each shock absorber is rotatably connected to the furnace bottom platform and the other end is rotatably connected to the bottom wall of the U-shaped plate; and a driving member installed between the U-shaped plate and the U-shaped frame, configured to drive the U-shaped plate to move along the height direction of the U-shaped frame.

[0009] Optionally, the driving component includes: guide rails, which are respectively installed on opposite side walls of the U-shaped frame along the height direction of the U-shaped frame, and both are located on the inner side of the U-shaped frame; sliders, which are respectively installed on the guide rails on both sides; lifting plates, which are respectively installed on the sliders on both sides; and support rods, which are respectively installed between the lifting plates on both sides and the opposite side walls of the U-shaped plate; wherein, the sliders on both sides are controlled to slide relative to the guide rails on both sides, so as to drive the U-shaped plate to move along the height direction of the U-shaped frame.

[0010] Optionally, the driving component further includes: a first seated bearing, respectively mounted on opposite side walls of the U-shaped frame, located below the guide rails on both sides along the height direction of the U-shaped frame; a first rotating shaft, respectively mounted on the first seated bearings on both sides; a first sprocket, respectively mounted on the first rotating shafts on both sides; a second seated bearing, respectively mounted on opposite side walls of the U-shaped frame, located above the guide rails on both sides along the height direction of the U-shaped frame; a second rotating shaft, respectively mounted on the second seated bearings on both sides; a second sprocket, respectively mounted on the second rotating shafts on both sides; a first chain, respectively fitted between the first sprocket and the second sprocket on the same side, with a portion of the first chain on one side connected to the lifting plate on the same side, and a portion of the first chain on the other side connected to the adjacent side wall of the U-shaped plate; wherein, the first rotating shafts on both sides can be controlled to rotate, thereby driving the U-shaped plate to move along the height direction of the U-shaped frame.

[0011] Optionally, the driving component further includes: a motor base mounted on the bottom wall of the U-shaped frame; a drive motor mounted on the motor base; a third sprocket mounted on the rotating end of the drive motor; a fourth sprocket mounted on the first rotating shafts on both sides; and a second chain mounted between the third sprocket and the fourth sprockets on both sides.

[0012] Optionally, it further includes: optical axes, which are located inside the plurality of springs, with the top ends of the plurality of optical axes connected to the furnace bottom platform, and the bottom ends of the plurality of optical axes slidably passing through the bottom wall of the U-shaped plate; and limiting rings, which are respectively installed at the bottom ends of the plurality of optical axes.

[0013] Optionally, it also includes: linear bearings, which are respectively fitted onto the plurality of optical axes and are all mounted on the bottom wall of the U-shaped plate.

[0014] Optionally, it further includes: a first metal pad, which is respectively fitted onto the plurality of optical axes and located at one end of the plurality of springs.

[0015] Optionally, it further includes: a second metal pad, which is respectively fitted onto the plurality of optical axes and located at the other end of the plurality of springs.

[0016] Optionally, it further includes: a first support, which is rotatably connected to one end of each of the plurality of shock absorbers and is installed on the furnace bottom platform.

[0017] Optionally, it further includes: a second support, which is rotatably connected to the other end of the plurality of shock absorbers and is mounted on the bottom wall of the U-shaped plate.

[0018] The vacuum furnace lifting mechanism provided in this disclosure can achieve the following technical effects:

[0019] This disclosure provides a vacuum furnace lifting mechanism, including a U-shaped frame, a U-shaped plate, a furnace bottom platform, springs, shock absorbers, and a drive component. The U-shaped frame rests against the ground, supporting the entire device. The U-shaped plate, located inside the U-shaped frame, supports and mounts related components of the device. The furnace bottom platform, located inside the U-shaped plate, supports and holds the vacuum furnace. Springs are evenly installed along the height of the U-shaped frame between the furnace bottom platform and the bottom wall of the U-shaped plate, all serving a cushioning function. Shock absorbers are evenly distributed between the furnace bottom platform and the bottom wall of the U-shaped plate. Multiple shock absorbers have one end rotatably connected to the furnace bottom platform and the other end rotatably connected to the bottom wall of the U-shaped plate. Each shock absorber can rotate relative to both the furnace bottom platform and the bottom wall of the U-shaped plate, all serving a cushioning function. The drive unit is installed between the U-shaped plate and the U-shaped frame to provide driving force, driving the U-shaped plate to move along the height direction of the U-shaped frame.

[0020] In operation, driven by the drive mechanism, the U-shaped plate moves along the height of the U-shaped frame. Then, supported by multiple springs and shock absorbers, the furnace bottom platform moves along the height of the U-shaped frame. This ultimately achieves the lifting function of the furnace bottom platform, enabling the lifting of vacuum furnaces and similar structures. Furthermore, when the vacuum furnace is placed on the furnace bottom platform, the multiple springs act as a buffer, while the multiple shock absorbers dampen vibrations, suppressing the spring's movement and ensuring the furnace bottom platform quickly and stably stabilizes.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a front view schematic diagram of a vacuum furnace lifting mechanism provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0026] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure at the CC section;

[0027] Figure 5 yes Figure 1 Schematic diagram of the cross-sectional structure at point DD.

[0028] Figure label:

[0029] 1. U-shaped frame; 2. U-shaped plate; 3. Furnace bottom platform; 4. Spring; 5. Shock absorber; 6. Guide rail; 7. Slider; 8. Lifting plate; 9. Support rod; 10. First bearing with seat; 11. First shaft; 12. First sprocket; 13. Second bearing with seat; 14. Second shaft; 15. Second sprocket; 16. First chain; 17. Motor base; 18. Drive motor; 19. Third sprocket; 20. Fourth sprocket; 21. Second chain; 22. Optical shaft; 23. Limiting ring; 24. Linear bearing; 25. First metal gasket; 26. Second metal gasket; 27. First support; 28. Second support. Detailed Implementation

[0030] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0031] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0032] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0033] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Unless otherwise stated, the term "multiple" means two or more.

[0035] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0036] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0038] Combination Figures 1 to 5As shown, this embodiment of the present disclosure provides a vacuum furnace lifting mechanism, including a U-shaped frame 1, a U-shaped plate 2, a furnace bottom platform 3, springs 4, shock absorbers 5, and a driving component. The U-shaped frame 1 rests against the ground, thereby supporting the entire device. The U-shaped plate 2 is located inside the U-shaped frame 1 and supports related components of the installation device. The furnace bottom platform 3 is located inside the U-shaped plate 2 and supports the placement of the vacuum furnace. Springs 4 are evenly installed along the height direction of the U-shaped frame 1 between the furnace bottom platform 3 and the bottom wall of the U-shaped plate 2, all serving a cushioning function. Shock absorbers 5 are evenly distributed between the furnace bottom platform 3 and the bottom wall of the U-shaped plate 2. One end of each shock absorber 5 is rotatably connected to the furnace bottom platform 3, and the other end is rotatably connected to the bottom wall of the U-shaped plate 2. Each shock absorber 5 can rotate relative to the furnace bottom platform 3 and the bottom wall of the U-shaped plate 2, all serving a cushioning function. The driving component is installed between the U-shaped plate 2 and the U-shaped frame 1 to provide driving force and drive the U-shaped plate 2 to move along the height direction of the U-shaped frame 1.

[0039] This embodiment of the invention provides a vacuum furnace lifting mechanism. Driven by a driving component, the U-shaped plate 2 moves along the height direction of the U-shaped frame 1. Then, supported by multiple springs 4 and multiple shock absorbers 5, the furnace bottom platform 3 moves along the height direction of the U-shaped plate 2 and the U-shaped frame 1. This ultimately achieves the lifting function of the furnace bottom platform 3, enabling the lifting of vacuum furnaces and similar devices. Furthermore, when the vacuum furnace is placed on the furnace bottom platform 3, the multiple springs 4 act as a buffer. Simultaneously, the multiple shock absorbers 5 act as vibration dampers, thereby suppressing the jumping of the multiple springs 4 and ensuring that the furnace bottom platform 3 quickly maintains stability.

[0040] Optionally, combined Figure 1 , Figure 4 and Figure 5 As shown, the driving component includes guide rails 6, sliders 7, lifting plates 8, and support rods 9. Guide rails 6 are installed along the height direction of the U-shaped frame 1 on opposite side walls of the frame 1, both located inside the frame 1, and are used to support the sliding sliders 7. Sliding sliders 7 are installed on the guide rails 6 on both sides, serving as guides and supports together. Lifting plates 8 are installed on the sliders 7 on both sides, and move along the height direction of the U-shaped frame 1 under the guidance and support of the guide rails 6 and sliders 7. Support rods 9 are installed between the lifting plates 8 and opposite side walls of the U-shaped plate 2, used to determine the relative position of the U-shaped plate 2 and the lifting plates 8. The sliders 7 on both sides are controllable and can slide relative to the guide rails 6, thereby driving the U-shaped plate 2 to move along the height direction of the U-shaped frame 1.

[0041] In this embodiment, driven by an external force, the sliders 7 on both sides slide relative to the guide rails 6 on both sides, thereby driving the lifting plates 8 on both sides to move along the height direction of the U-shaped frame 1. Then, the support rods 9 on both sides can drive the U-shaped plate 2 to move along the height direction of the U-shaped frame 1, ultimately realizing the lifting function of the furnace bottom platform 3.

[0042] Optionally, combined Figure 1 , Figure 4 and Figure 5 As shown, the drive unit also includes a first seated bearing 10, a first rotating shaft 11, a first sprocket 12, a second seated bearing 13, a second rotating shaft 14, a second sprocket 15, and a first chain 16. The first seated bearings 10 are respectively mounted on opposite side walls of the U-shaped frame 1, located below the side guide rails 6 along the height direction of the U-shaped frame 1, and are used to support the rotatable first rotating shaft 11. The first rotating shaft 11 is respectively mounted on the two side first seated bearings 10, and is used to support the first sprocket 12. The first sprocket 12 is respectively mounted on the two side first rotating shafts 11 and rotates synchronously with the two side first rotating shafts 11. The second seated bearings 13 are respectively mounted on opposite side walls of the U-shaped frame 1, located above the two side guide rails 6 along the height direction of the U-shaped frame 1, and are used to support the second rotating shaft 14. The second rotating shaft 14 is respectively mounted on the two side second seated bearings 13, and is used to support the second sprocket 15. The second sprockets 15 are respectively installed on the second rotating shafts 14 on both sides and rotate synchronously with the second rotating shafts 14 on both sides. The first chain 16 is respectively fitted between the first sprocket 12 and the second sprocket 15 on the same side. Part of the chain links of the first chain 16 on one side are connected to the lifting plate 8 on the same side, and part of the chain links of the first chain 16 on the other side are connected to the adjacent side wall of the U-shaped plate 2, respectively, for driving the lifting plate 8 and the U-shaped plate 2 to move. Among them, the first rotating shafts 11 on both sides can be rotated in a controlled manner to drive the U-shaped plate 2 to move along the height direction of the U-shaped frame 1.

[0043] In this embodiment, driven by external force, the first rotating shafts 11 on both sides rotate, which in turn drives the first sprockets 12 on both sides to rotate. Then, supported by the second sprockets 15 on both sides, the chains on both sides can reciprocate. Subsequently, under the guiding and supporting action of the guide rails 6 on both sides and the sliders 7 on both sides, the chains on both sides can drive the lifting plates 8 on both sides, the support rods 9 on both sides, and the U-shaped plates 2 to move up and down, ultimately realizing the lifting function of the furnace bottom platform 3. Compared with the drive method using lead screws, this method is lower in cost and easier to maintain.

[0044] Optionally, combined Figure 1 and Figure 4 As shown, the drive unit also includes a motor base 17, a drive motor 18, a third sprocket 19, a fourth sprocket 20, and a second chain 21. The motor base 17 is mounted on the bottom wall of the U-shaped frame 1 to support and mount the drive motor 18. The drive motor 18 is mounted on the motor base 17. The third sprocket 19 is mounted on the rotating end of the drive motor 18 to provide driving force for rotational motion. The fourth sprockets 20 are respectively mounted on the two sides of the first rotating shaft 11, respectively driving the two sides of the first rotating shaft 11 to rotate. The second chain 21 is respectively mounted between the third sprocket 19 and the two sides of the fourth sprocket 20, respectively transmitting driving force.

[0045] In this embodiment, controlling the drive motor 18 to operate will drive the third sprocket 19 to rotate. The second chains 21 on both sides will then drive the fourth sprockets 20 on both sides to rotate. This, in turn, will drive the first rotating shafts 11 on both sides to rotate, ultimately achieving the automatic lifting function of the furnace bottom platform 3.

[0046] Optionally, combined Figure 1 and Figure 3 As shown, it also includes optical axes 22 and limiting rings 23. The optical axes 22 are located inside multiple springs 4, and the top ends of multiple optical axes 22 are connected to the furnace bottom platform 3. The bottom ends of multiple optical axes 22 can slide through the bottom wall of the U-shaped plate 2. The limiting rings 23 are respectively installed at the bottom ends of multiple optical axes 22.

[0047] In this embodiment, multiple optical axes 22 serve as guides and supports, allowing multiple springs 4 to be compressed. Multiple limiting rings 23 serve as limiters to prevent the multiple optical axes 22 from slipping off the bottom wall of the U-shaped plate 2. Furthermore, the design of multiple springs 4 fitted onto multiple optical axes 22 prevents the multiple springs 4 from detaching from the furnace bottom platform 3 and the bottom wall of the U-shaped plate 2.

[0048] Optionally, combined Figure 1 and Figure 3 As shown, it also includes linear bearings 24. The linear bearings 24 are respectively mounted on multiple optical axes 22, and are all installed on the bottom wall of the U-shaped plate 2.

[0049] In this embodiment of the disclosure, a plurality of linear bearings 24 are used to reduce the friction between the plurality of optical axes 22 and the bottom wall of the U-shaped plate 2, and to improve the accuracy of the plurality of optical axes 22 when sliding relative to the bottom wall of the U-shaped plate 2.

[0050] Optionally, combined Figures 1 to 3 As shown, it also includes a first metal washer 25. The first metal washer 25 is respectively fitted onto a plurality of optical axes 22 and is located at one end of a plurality of springs 4.

[0051] In this embodiment of the disclosure, the plurality of first metal pads 25 are used to provide protection to prevent the surface of the part from being worn and damaged by the plurality of springs 4.

[0052] Optionally, combined Figures 1 to 3 As shown, it also includes a second metal washer 26. The second metal washer 26 is respectively fitted onto a plurality of optical axes 22 and is located at the other end of a plurality of springs 4.

[0053] In this embodiment, the multiple second metal pads 26 also serve a protective function to prevent the surface of the part from being worn and damaged by the multiple springs 4.

[0054] Optionally, combined Figure 1As shown, it also includes a first support 27. The first support 27 is rotatably connected to one end of each of the multiple shock absorbers 5, and is installed on the furnace bottom platform 3.

[0055] In this embodiment of the present disclosure, after a plurality of first supports 27 are installed on the furnace bottom platform 3, they are used to support and install a plurality of rotatable shock absorbers 5, so that the plurality of shock absorbers 5 can rotate relative to the furnace bottom platform 3.

[0056] Optionally, combined Figure 1 As shown, it also includes a second support 28. The second support 28 is rotatably connected to the other end of the plurality of shock absorbers 5, and is installed on the bottom wall of the U-shaped plate 2.

[0057] In this embodiment of the disclosure, after a plurality of second supports 28 are installed on the bottom wall of the U-shaped plate 2, they are used to support and install a plurality of rotatable shock absorbers 5, so that the plurality of shock absorbers 5 can rotate relative to the bottom wall of the U-shaped plate 2.

[0058] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A vacuum furnace lifting mechanism, characterized in that, include: Frame; A U-shaped plate is located inside the U-shaped frame; The furnace bottom platform is located inside the U-shaped plate; Springs are evenly installed between the furnace bottom platform and the bottom wall of the U-shaped plate along the height direction of the U-shaped frame; Shock absorbers are evenly distributed between the furnace bottom platform and the bottom wall of the U-shaped plate. One end of each shock absorber is rotatably connected to the furnace bottom platform, and the other end is rotatably connected to the bottom wall of the U-shaped plate. A drive unit, installed between the U-shaped plate and the U-shaped frame, is configured to drive the U-shaped plate to move along the height direction of the U-shaped frame.

2. The vacuum furnace lifting mechanism according to claim 1, characterized in that, The driving component includes: Guide rails are installed on opposite side walls of the frame along the height direction of the frame, and are located on the inner side of the frame. Slider blocks are respectively mounted on the guide rails on both sides; The lifting plates are respectively installed on the sliders on both sides; Support rods are respectively installed between the opposite side walls of the lifting plates and the U-shaped plates on both sides; The sliders on both sides are controlled to slide relative to the guide rails on both sides, so as to drive the U-shaped plate to move along the height direction of the U-shaped frame.

3. The vacuum furnace lifting mechanism according to claim 2, characterized in that, The driving component also includes: The first seated bearings are respectively installed on the opposite side walls of the U-shaped frame, and are located below the guide rails on both sides along the height direction of the U-shaped frame; The first rotating shaft is respectively installed on the first bearing with a seat on both sides; The first sprocket is installed on the first rotating shaft on both sides respectively; The second bearing with a seat is respectively installed on the opposite side walls of the U-shaped frame, and is located above the guide rails on both sides along the height direction of the U-shaped frame; The second rotating shaft is respectively installed on the second bearing with mounting bracket on both sides; The second sprockets are respectively installed on the second shafts on both sides; The first chain is respectively fitted between the first sprocket and the second sprocket on the same side. Part of the first chain on one side is connected to the lifting plate on the same side, and part of the first chain on the other side is connected to the adjacent side wall of the U-shaped plate. The first rotating shafts on both sides can be rotated in a controlled manner to drive the U-shaped plate to move along the height direction of the U-shaped frame.

4. The vacuum furnace lifting mechanism according to claim 3, characterized in that, The driving component also includes: The motor mount is installed on the bottom wall of the frame; A drive motor is mounted on the motor mount; The third sprocket is installed on the rotating end of the drive motor; The fourth sprocket is mounted on the first shaft on both sides; The second chain is installed between the third sprocket and the fourth sprockets on both sides.

5. A vacuum furnace lifting mechanism according to claim 1, characterized in that, Also includes: The optical axes are located inside the multiple springs, and the top ends of the multiple optical axes are connected to the furnace bottom platform. The bottom ends of the multiple optical axes can slide through the bottom wall of the U-shaped plate. Limiting rings are respectively installed at the bottom ends of the multiple optical axes.

6. A vacuum furnace lifting mechanism according to claim 5, characterized in that, Also includes: Linear bearings are respectively fitted onto multiple optical axes and are all installed on the bottom wall of the U-shaped plate.

7. A vacuum furnace lifting mechanism according to claim 5, characterized in that, Also includes: The first metal gasket is respectively fitted onto the plurality of optical axes and is located at one end of the plurality of springs.

8. A vacuum furnace lifting mechanism according to claim 5, characterized in that, Also includes: The second metal pads are respectively fitted onto the plurality of optical axes and are located at the other end of the plurality of springs.

9. A vacuum furnace lifting mechanism according to any one of claims 1 to 8, characterized in that, Also includes: The first support is rotatably connected to one end of each of the multiple shock absorbers and is installed on the furnace bottom platform.

10. A vacuum furnace lifting mechanism according to any one of claims 1 to 8, characterized in that, Also includes: The second support is rotatably connected to the other end of each of the shock absorbers and is installed on the bottom wall of the U-shaped plate.

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