False tooth carving machine

Abstract

The utility model discloses a false tooth carving machine which comprises a carving machine body, a main shaft assembly and a vertical lifting mechanism, the main shaft assembly and the vertical lifting mechanism are arranged on the carving machine body, the vertical lifting mechanism comprises an installation base, a vertical lead screw, a transmission nut and a main shaft holding clamp, and a sliding fit assembly is arranged between the main shaft holding clamp and the installation base. The main shaft holding clamp is slidably connected to the mounting base in the vertical direction through a sliding fit assembly, when the vertical lead screw rotates around the central axis of the vertical lead screw, the sliding fit assembly limits rotation of the main shaft holding clamp so that the vertical lead screw and the main shaft holding clamp can rotate relatively, and the main shaft holding clamp drives the main shaft assembly to do lifting motion in the vertical direction. According to the false tooth carving machine, a stable vertical sliding surface and a rotation limiting structure are provided for the main shaft holding clamp through the sliding fit assembly, vibration and deviation in the lifting process are effectively reduced, and the stability of a lifting mechanism is improved.

Description

Technical Field

[0001] This utility model relates to the field of dental prosthesis processing technology, and in particular to a dental prosthesis carving machine. Background Technology

[0002] Dental prosthesis carving machines are specialized processing equipment in the field of oral medicine, mainly used to manufacture dental prostheses, crowns, bridges, and other dental restorations. One of its core components is the spindle, which carries cutting tools to precisely carve dental materials. To ensure accuracy and efficiency, dental prosthesis carving machines typically employ a precision Z-axis transmission mechanism to control the spindle's vertical movement. In existing dental prosthesis carving machines, the Z-axis transmission mechanism usually includes a lead screw and slider mechanism and a linear guide. The lead screw and slider mechanism drives the slider to move up and down along the linear guide via the rotation of the lead screw, thereby driving the spindle to perform precise carving operations. This design has advantages such as simple structure, high transmission efficiency, and high positioning accuracy, and is widely used in various CNC machine tools and processing equipment.

[0003] Traditional lifting mechanisms often rely solely on the simple interaction between a lead screw and a slider to drive the spindle assembly up and down. However, when dealing with complex processing requirements or long-term continuous operation, this design is prone to instability during the lifting process due to factors such as uneven force and accumulated wear. This instability is not only reflected in the slight deviation of the lifting trajectory, but may also cause vibration and noise, thereby affecting the accuracy and efficiency of denture carving. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a dental prosthesis carving machine. This addresses the problem that the existing dental prosthesis carving machine's Z-axis transmission mechanism typically only has a single linear guide rail. The spindle is limited by the cooperation between the single linear guide rail and the slider. Under long-term load on the spindle or during long-term continuous operation, the cooperation between the single linear guide rail and the slider may experience slight deformation or wear. This deformation or wear will affect the lifting accuracy and stability of the spindle, and thus affect the accuracy and efficiency of dental prosthesis carving.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model embodiment provides a dental prosthesis carving machine, including: a carving machine body, and a spindle assembly and a vertical lifting mechanism disposed on the carving machine body. The spindle assembly is used to mount carving tools, and the vertical lifting mechanism is used to drive the spindle assembly to move in a vertical direction. The vertical lifting mechanism includes: a mounting base, a vertical lead screw, a transmission nut, and a spindle clamp. The vertical lead screw is mounted on the mounting base in a vertical direction, the transmission nut is embedded in the spindle clamp and screwed to the vertical lead screw, and the spindle assembly is mounted on the spindle clamp in a vertical direction.

[0007] The spindle clamp is provided with a sliding engagement component between the spindle clamp and the mounting base. The spindle clamp is slidably connected to the mounting base in the vertical direction through the sliding engagement component. When the vertical lead screw rotates around its central axis, the sliding engagement component limits the rotation of the spindle clamp, so that the vertical lead screw and the spindle clamp rotate relative to each other. The spindle clamp drives the spindle assembly to move up and down in the vertical direction.

[0008] Furthermore, the mounting base has a spindle through hole in the vertical direction, and the spindle clamp and the spindle assembly pass through the spindle through hole in the vertical direction.

[0009] Furthermore, the sliding fit assembly includes a vertical guide rail and a vertical slider slidably connected to the vertical guide rail. The vertical guide rail is disposed on the outside of the spindle clamp in a vertical direction, and the vertical slider is disposed on the mounting base.

[0010] Furthermore, two vertical guide rails are provided, and two columns of vertical sliders are provided accordingly.

[0011] Furthermore, the central axis of the spindle assembly is located on the vertical symmetry plane of the two columns of vertical sliders, and the line connecting the central axis of the spindle assembly and the vertical lead screw is perpendicular to the vertical symmetry plane of the two columns of vertical sliders.

[0012] Furthermore, a vertical block is provided on one side of the spindle through hole, and the vertical slider is provided on the side of the vertical block facing the spindle through hole.

[0013] Furthermore, the mounting base is provided with a lead screw drive assembly, which includes a drive motor, a drive wheel, a driven wheel, and a timing belt. The output shaft of the drive motor is vertically oriented, the drive wheel is connected to the output shaft of the drive motor, the driven wheel is connected to the upper end of the vertical lead screw, and the timing belt is wound between the drive wheel and the driven wheel.

[0014] Furthermore, it also includes a first rotating mechanism and a denture positioning plate. The first rotating mechanism includes a first mounting frame and a first driving member mounted on the first mounting frame. The denture positioning plate is mounted on the first mounting frame. A first rotating shaft is provided at the center of the denture positioning plate. The output shaft of the first driving member is connected to the first rotating shaft. The first rotating mechanism is used to drive the denture positioning plate to rotate around the first rotating shaft. The denture positioning plate is used to place the denture to be processed.

[0015] Furthermore, the dental prosthesis carving machine is also provided with a second rotating mechanism, which includes a second mounting frame, a second driving member and a second rotating shaft mounted on the second mounting frame. The output shaft of the second driving member is connected to the second rotating shaft, and the first mounting frame is connected to the second rotating shaft. The second rotating mechanism is used to drive the first mounting frame to rotate around the second rotating shaft.

[0016] Furthermore, the moving direction of the spindle assembly, the axial direction of the first rotating shaft, and the axial direction of the second rotating shaft are perpendicular to each other.

[0017] The dental prosthesis carving machine of this utility model provides a stable vertical sliding surface and rotation limit structure for the main spindle clamp through a sliding fit component, which effectively reduces vibration and deviation during the lifting process and improves the stability of the lifting mechanism.

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0019] Figure 1 This is a first perspective view of the dental prosthesis carving machine according to an embodiment of the present invention;

[0020] Figure 2 This is a second perspective view of the dental prosthesis carving machine according to an embodiment of the present invention;

[0021] Figure 3 This is a first perspective view of the vertical lifting mechanism in the dental prosthesis carving machine according to an embodiment of the present utility model;

[0022] Figure 4 This is a second perspective view of the vertical lifting mechanism in the dental prosthesis carving machine according to an embodiment of the present utility model;

[0023] Figure 5 This is a third perspective view of the vertical lifting mechanism in the dental prosthesis carving machine according to an embodiment of the present utility model;

[0024] Figure 6 This is an exploded view of the vertical lifting mechanism in the dental prosthesis carving machine according to an embodiment of this utility model;

[0025] Figure 7 This is a schematic diagram of the first cooperation structure between the vertical lifting mechanism and the first and second rotating mechanisms in the dental prosthesis carving machine according to an embodiment of the present utility model.

[0026] Figure 8This is a schematic diagram of the second cooperative structure of the vertical lifting mechanism, the first rotating mechanism, and the second rotating mechanism of the dental prosthesis carving machine according to an embodiment of the present utility model.

[0027] Figure 9 This is a perspective view of the first rotating mechanism in the dental prosthesis carving machine according to an embodiment of the present invention;

[0028] Figure 10 This is an exploded view of the first rotating mechanism in the dental prosthesis carving machine according to an embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the cooperative structure of the first rotating mechanism and the second rotating mechanism in the dental prosthesis carving machine according to an embodiment of this utility model;

[0030] Figure 12 This is a schematic diagram of the first internal structure of the first rotating mechanism and the second rotating mechanism in the dental prosthesis carving machine according to an embodiment of the present utility model;

[0031] Figure 13 This is a schematic diagram of the second internal structure of the first rotating mechanism and the second rotating mechanism in the dental prosthesis carving machine according to an embodiment of the present utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Engraving machine body; 2. Vertical lifting mechanism; 21. Mounting base; 211. Spindle through hole; 22. Vertical lead screw; 23. Transmission nut; 24. Spindle clamp; 25. Sliding fit assembly; 251. Vertical guide rail; 252. Vertical slider; 253. Stand block; 26. Lead screw transmission assembly; 261. Drive motor; 262. Driving wheel; 263. Driven wheel; 264. Synchronous belt; 3. Spindle assembly; 4. Denture positioning plate; 5. First rotating mechanism; 51. First mounting frame; 52. First driving component; 53. First rotating shaft; 54. First worm; 55. First worm wheel; 6. Second rotating mechanism; 61. Second mounting frame; 62. Second driving component; 63. Second rotating shaft; 64. Second worm; 65. Second worm wheel. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "resin", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Please see the appendix Figures 1 to 6 This utility model provides a dental prosthesis engraving machine, including: an engraving machine body 1, and a spindle assembly 3 and a vertical lifting mechanism 2 disposed on the engraving machine body 1. The spindle assembly 3 is used to mount engraving tools, and the vertical lifting mechanism 2 is used to drive the spindle assembly 3 to move in the vertical direction. The vertical lifting mechanism 2 includes: a mounting base 21, a vertical lead screw 22, a transmission nut 23, and a spindle clamp 24. The vertical lead screw 22 is mounted on the mounting base 21 in the vertical direction, and the transmission nut 23 is embedded in the spindle clamp 24 and screwed in. The spindle assembly 3 is mounted vertically on the spindle clamp 24 with the vertical lead screw 22. A sliding engagement component 25 is provided between the spindle clamp 24 and the mounting base 21. The spindle clamp 24 is slidably connected to the mounting base 21 in the vertical direction through the sliding engagement component 25. When the vertical lead screw 22 rotates around its central axis, the sliding engagement component 25 limits the rotation of the spindle clamp 24, so that the vertical lead screw 22 and the spindle clamp 24 rotate relative to each other. The spindle clamp 24 drives the spindle assembly 3 to move up and down in the vertical direction.

[0042] In this embodiment, the sliding fit assembly 25 provides a stable vertical sliding surface and rotation limiting structure for the spindle clamp 24. The vertical sliding surface is responsible for providing relative sliding between the spindle clamp 24 and the mounting base 21, while the rotation limiting structure is used to limit the rotation of the spindle clamp 24, ensuring relative rotation between the vertical lead screw 22 and the spindle clamp 24. Thus, when the vertical lead screw 22 rotates, the transmission nut 23 can drive the spindle clamp 24 to move in the vertical direction. At the same time, the sliding fit assembly 25 maintains the stability and accuracy of the spindle clamp 24, effectively reducing vibration and deviation during the lifting process.

[0043] Furthermore, the mounting base 21 has a vertically oriented spindle through hole 211 through which the spindle clamp 24 and spindle assembly 3 pass vertically. It is understood that by creating the spindle through hole 211, a sliding motion pair is formed between the spindle through hole 211, the spindle clamp 24, and the spindle assembly 3, allowing the spindle assembly 3 to move linearly in the vertical direction. This allows the spindle clamp 24 and spindle assembly 3 to pass directly through in the vertical direction, avoiding additional installation space requirements and making the overall structure more compact and rational. The design of the spindle through hole 211 also helps ensure the smooth movement of the spindle clamp 24 and spindle assembly 3 during lifting and lowering, reducing movement interference or jamming caused by improper installation position.

[0044] Specifically, the sliding engagement assembly 25 includes a vertical guide rail 251 and a vertical slider 252 slidably connected to the vertical guide rail 251. The vertical guide rail 251 is arranged vertically on the outside of the spindle clamp 24, and the vertical slider 252 is arranged on the mounting base 21. The engagement of the vertical guide rail 251 and the vertical slider 252 can provide stable support and guidance for the spindle clamp 24, reduce shaking and deviation during the lifting process, and thus improve the stability of the lifting mechanism.

[0045] Furthermore, two vertical guide rails 251 are provided, and two rows of vertical sliders 252 are correspondingly provided. It should be explained that the arrangement of two vertical guide rails 251 and two rows of vertical sliders 252 can distribute the load during the lifting process, making the stress on each component more even, thereby improving the overall load-bearing capacity. Moreover, the cooperation between the two vertical guide rails 251 and the two rows of vertical sliders 252 ensures that the movement trajectory of the main shaft assembly 3 is smoother and straighter during the lifting process, reducing errors caused by deviations in the movement trajectory. During operation, when the vertical lead screw 22 begins to rotate, the transmission nut 23 drives the spindle clamp 24 and the spindle assembly 3 to move vertically. Two rows of vertical sliders 252 slide on two vertical guide rails 251, providing stable support and guidance for the spindle clamp 24. During lifting and lowering, the close cooperation between the two vertical guide rails 251 and the two rows of vertical sliders 252 ensures the stability and accuracy of the spindle assembly 3, avoiding wobbling and deviation. Simultaneously, multiple support points distribute the stress during lifting and lowering, reducing wear and fatigue of individual components. It should be noted that each row of vertical sliders 252 can have one or more; in this embodiment, each row of vertical sliders 252 has two.

[0046] Furthermore, the central axis of the spindle assembly 3 is located on the vertical symmetry plane of the two vertical sliders 252, and the line connecting the central axis of the spindle assembly 3 and the vertical lead screw 22 is perpendicular to the vertical symmetry plane of the two vertical sliders 252. When the vertical lead screw 22 starts to rotate, the transmission nut 23 drives the spindle clamp 24 and the spindle assembly 3 to move up and down along the vertical guide rail 251 and the vertical sliders 252. Since the central axis of the spindle assembly 3 is located on the vertical symmetry plane of the two vertical sliders 252, it can be ensured that the spindle assembly 3 moves along a precise straight trajectory during the lifting and lowering process. At the same time, since the line connecting the central axis of the spindle assembly 3 and the vertical lead screw 22 is perpendicular to the vertical symmetry plane of the two vertical sliders 252, vibration and noise during the lifting and lowering process can be further reduced.

[0047] Specifically, a vertical block 253 is provided on one side of the spindle through hole 211, and a vertical slider 252 is provided on the side of the vertical block 253 facing the spindle through hole 211.

[0048] Furthermore, a lead screw drive assembly 26 is provided on the mounting base 21. The lead screw drive assembly 26 includes a drive motor 261, a drive pulley 262, a driven pulley 263, and a timing belt 264. The output shaft of the drive motor 261 is vertically oriented. The drive pulley 262 is connected to the output shaft of the drive motor 261, the driven pulley 263 is connected to the upper end of the vertical lead screw 22, and the timing belt 264 is wound between the drive pulley 262 and the driven pulley 263. Since the output shaft of the drive motor 261 and the vertical lead screw 22 are connected by the drive pulley 262, the driven pulley 263, and the timing belt 264, it is not necessary to reserve space for installing the drive motor 261 in the axial length direction of the vertical lead screw 22. Correspondingly, in a dental prosthesis carving machine, this can effectively reduce the thickness in the front-back direction or the width in the left-right direction of the dental prosthesis carving machine. When it is necessary to raise or lower the spindle assembly 3, the drive motor 261 is started. The output shaft of the drive motor 261 begins to rotate, which drives the drive wheel 262 to rotate. When the drive wheel 262 rotates, it transmits power to the driven wheel 263 through the synchronous belt 264. When the driven wheel 263 rotates, it drives the vertical lead screw 22 to rotate. Since the vertical lead screw 22 is connected to the spindle assembly 3 through the transmission nut 23, the rotation of the vertical lead screw 22 is converted into the raising or lowering motion of the spindle assembly 3 through the transmission nut 23.

[0049] For further details, please refer to Figures 7 to 10This embodiment also includes a first rotating mechanism 5 and a denture positioning plate 4. The first rotating mechanism 5 includes a first mounting frame 51 and a first driving member 52 mounted on the first mounting frame 51. The denture positioning plate 4 is mounted on the first mounting frame 51, and a first rotating shaft 53 is provided at the center of the denture positioning plate 4. The output shaft of the first driving member 52 is connected to the first rotating shaft 53. The first rotating mechanism 5 is used to drive the denture positioning plate 4 to rotate around the first rotating shaft 53. The denture positioning plate 4 is used to place the denture to be processed. Specifically, the axial direction of the first rotating shaft 53 is horizontal and perpendicular to the axial direction of the main shaft assembly 3. In this embodiment, by driving the denture positioning plate 4 to rotate around the first rotating shaft 53 through the first rotating mechanism 5, multi-angle processing of the denture to be processed placed on the denture positioning plate 4 can be realized, thereby improving processing flexibility and meeting more complex carving needs.

[0050] Specifically, the first rotating mechanism 5 further includes a first worm 54 and a first worm wheel 55. The first worm 54 is coaxially connected to the output shaft of the first driving member 52, and the first worm wheel 55 is coaxially connected to the first rotating shaft 53. The first helical teeth on the first worm 54 mesh with the first gear teeth on the first worm wheel 55. It can be understood that when the first driving member 52 is activated, the output shaft of the first driving member 52 drives the first worm 54 to rotate. The first worm 54 then transmits power to the first gear teeth on the first worm wheel 55 through its first helical teeth, causing the first worm wheel 55 to rotate. The first worm wheel 55 then drives the first rotating shaft 53 to rotate, ultimately rotating the denture positioning plate 4 and the denture placed on it.

[0051] For further details, please refer to Figures 11 to 13The dental prosthesis carving machine in this embodiment is further provided with a second rotating mechanism 6. The second rotating mechanism 6 includes a second mounting frame 61, a second driving member 62 mounted on the second mounting frame 61, and a second rotating shaft 63. The output shaft of the second driving member 62 is drively connected to the second rotating shaft 63. The first mounting frame 51 is connected to the second rotating shaft 63. The second rotating mechanism 6 is used to drive the first mounting frame 51 to rotate around the second rotating shaft 63. Specifically, the axial direction of the second rotating shaft 63 is horizontal and perpendicular to the axial direction of the main shaft assembly 3. Specifically, the central axis of the second rotating shaft 63 intersects and is perpendicular to the central axis of the first rotating shaft 53. In this embodiment, the first mounting frame 51 (and the first rotating mechanism 5 and the denture positioning plate 4 on it) is driven to rotate around the second rotating axis 63 by the second rotating mechanism 6, which can further increase the processing flexibility of the denture carving machine, so that the denture to be processed can be rotated and adjusted in more dimensions to meet more complex and fine carving needs. The central axis of the second rotating axis 63 intersects and is perpendicular to the central axis of the first rotating axis 53, so that the denture positioning plate 4 can rotate on two mutually perpendicular planes, thereby realizing multi-dimensional adjustment of the denture.

[0052] Specifically, the second rotating mechanism 6 includes a second worm 64 and a second worm wheel 65. The second worm 64 is coaxially connected to the output shaft of the second driving member 62, and the second worm wheel 65 is coaxially connected to the second rotating shaft 63. The second helical teeth on the second worm 64 mesh with the second gear teeth on the second worm wheel 65. It can be understood that when the second driving member 62 is activated, the output shaft of the second driving member 62 drives the second worm 64 to rotate. The second worm 64 then transmits power to the second gear teeth on the second worm wheel 65 through its second helical teeth, causing the second worm wheel 65 to rotate. The second worm wheel 65 then drives the second rotating shaft 63 to rotate, which in turn drives the first mounting bracket 51 to rotate, ultimately causing the denture positioning plate 4 and the denture placed on it to rotate.

[0053] Furthermore, the moving direction of the spindle assembly 3, the axial direction of the first rotating shaft 53, and the axial direction of the second rotating shaft 63 are perpendicular to each other. The moving direction of the spindle assembly 3 is the axial direction of the spindle assembly 3. By ensuring that the moving direction of the spindle assembly 3, the axial direction of the first rotating shaft 53, and the axial direction of the second rotating shaft 63 are perpendicular to each other, the denture can be processed in all directions in three-dimensional space, meeting various complex and fine carving needs.

[0054] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A dental prosthesis carving machine, characterized in that, include: The engraving machine body includes a spindle assembly and a vertical lifting mechanism mounted on the engraving machine body. The spindle assembly is used to mount engraving tools, and the vertical lifting mechanism is used to drive the spindle assembly to move vertically. The vertical lifting mechanism includes a mounting base, a vertical lead screw, a transmission nut, and a spindle clamp. The vertical lead screw is mounted on the mounting base in the vertical direction, the transmission nut is embedded in the spindle clamp and screwed to the vertical lead screw, and the spindle assembly is mounted on the spindle clamp in the vertical direction. The spindle clamp is provided with a sliding engagement component between the spindle clamp and the mounting base. The spindle clamp is slidably connected to the mounting base in the vertical direction through the sliding engagement component. When the vertical lead screw rotates around its central axis, the sliding engagement component limits the rotation of the spindle clamp, so that the vertical lead screw and the spindle clamp rotate relative to each other. The spindle clamp drives the spindle assembly to move up and down in the vertical direction.

2. The dental prosthesis carving machine according to claim 1, characterized in that, The mounting base has a spindle through hole in the vertical direction, and the spindle clamp and the spindle assembly pass through the spindle through hole in the vertical direction.

3. A dental prosthesis carving machine according to claim 2, characterized in that, The sliding fit assembly includes a vertical guide rail and a vertical slider slidably connected to the vertical guide rail. The vertical guide rail is arranged vertically on the outside of the spindle clamp, and the vertical slider is arranged on the mounting base.

4. A dental prosthesis carving machine according to claim 3, characterized in that, There are two vertical guide rails and two columns of vertical sliders.

5. A dental prosthesis carving machine according to claim 3, characterized in that, The central axis of the spindle assembly is located on the vertical symmetry plane of the two columns of vertical sliders, and the line connecting the central axis of the spindle assembly and the vertical lead screw is perpendicular to the vertical symmetry plane of the two columns of vertical sliders.

6. A dental prosthesis carving machine according to claim 3, characterized in that, A vertical block is provided on one side of the spindle through hole, and the vertical slider is provided on the side of the vertical block facing the spindle through hole.

7. A dental prosthesis carving machine according to claim 3, characterized in that, The mounting base is provided with a lead screw drive assembly, which includes a drive motor, a drive wheel, a driven wheel, and a timing belt. The output shaft of the drive motor is vertically oriented, the drive wheel is connected to the output shaft of the drive motor, the driven wheel is connected to the upper end of the vertical lead screw, and the timing belt is wound between the drive wheel and the driven wheel.

8. A dental prosthesis carving machine according to claim 1, characterized in that, It also includes a first rotating mechanism and a denture positioning plate. The first rotating mechanism includes a first mounting frame and a first driving member mounted on the first mounting frame. The denture positioning plate is mounted on the first mounting frame. A first rotating shaft is provided at the center of the denture positioning plate. The output shaft of the first driving member is connected to the first rotating shaft. The first rotating mechanism is used to drive the denture positioning plate to rotate around the first rotating shaft. The denture positioning plate is used to place the denture to be processed.

9. A dental prosthesis carving machine according to claim 8, characterized in that, The dental prosthesis carving machine is also provided with a second rotating mechanism. The second rotating mechanism includes a second mounting frame, a second driving member and a second rotating shaft mounted on the second mounting frame. The output shaft of the second driving member is connected to the second rotating shaft. The first mounting frame is connected to the second rotating shaft. The second rotating mechanism is used to drive the first mounting frame to rotate around the second rotating shaft.

10. A dental prosthesis carving machine according to claim 9, characterized in that, The direction of movement of the spindle assembly, the axial direction of the first rotating shaft, and the axial direction of the second rotating shaft are perpendicular to each other.

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