Rope-driven rotating structure for false tooth engraving and milling machine and false tooth engraving and milling machine
By adopting a rope-driven rotation structure in the dental prosthesis milling machine, the rotating shaft extends out of the operating space and connects to the motor and reducer, solving the problem of inconvenient maintenance of the motor and reducer located in the operating space in the existing technology, and realizing the convenience of replacement and the optimization of space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XIANGTONG PHOTOELECTRIC TECH
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-05
AI Technical Summary
In the existing 5-axis dental prosthesis milling machine, the motor and reducer are located in the operating space, which makes maintenance and replacement inconvenient.
The structure adopts a rope-driven rotation structure. The first and second rotating shafts extend out of the operating space through the first and second rope-driven assemblies and are connected to the motor and reducer respectively. The rotation transmission is achieved by using steel wire ropes and guide assemblies. The motor and reducer are located outside the operating space.
It facilitates the maintenance and replacement of motors and reducers, reduces the space occupied by the operating unit, and improves the ease of equipment maintenance.
Smart Images
Figure CN224193591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dental prosthesis processing equipment, specifically to a rope-driven rotating structure for a dental prosthesis carving and milling machine and the dental prosthesis carving and milling machine. Background Technology
[0002] With the increasing prevalence of digitalization in the dental prosthesis manufacturing industry, the number of dental prosthesis milling machines from various brands is also growing. The market has higher demands for the external dimensions, internal operating space, and the variety of products that can be processed by these machines. This necessitates smaller structural designs and two-axis clamping structures with larger swing angles.
[0003] Currently, most existing 5-axis dental prosthesis carving and milling machines use a motor + reducer drive method for their two-axis fixture structure. However, the motor and reducer need to be directly connected to the two-axis fixture structure and must be placed within the operating space of the dental prosthesis carving and milling machine. When the motor or reducer fails or needs to be replaced, it is inconvenient to repair or replace the motor or reducer due to the presence of many components within the operating space.
[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rope-driven rotating structure for a dental prosthesis carving and milling machine and a dental prosthesis carving and milling machine, so as to solve the problem that the motor and reducer of the two-axis structure of the clamp in the prior art are located in the operating space of the dental prosthesis carving and milling machine, which makes it inconvenient to maintain and replace.
[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:
[0007] A rope-driven rotating structure for a dental prosthesis milling machine and the dental prosthesis milling machine, comprising:
[0008] A fixed outer casing is installed within the operating space of a dental prosthesis milling machine; one end of the fixed outer casing is provided with a rotating groove.
[0009] A first rotating shaft is rotatably disposed within the rotating groove; a rotating hole is provided through the first rotating shaft.
[0010] The second rotating shaft is rotatably disposed within the rotating hole; a clamp is provided on the second rotating shaft.
[0011] The first drive shaft has one end rotatably disposed inside the fixed housing, and the other end extends out of the fixed housing and the outside of the operating space;
[0012] The second drive shaft is sleeved on the outer surface of the first drive shaft; one end of the first drive shaft is rotatably disposed inside the fixed housing, and the other end extends out of the fixed housing and the outside of the operating space;
[0013] A first rope drive assembly is disposed inside the fixed housing; the first rope drive assembly is connected to the first rotating shaft and the first drive shaft respectively, so that the first drive shaft drives the first rotating shaft to rotate;
[0014] The second rope drive assembly is disposed inside the fixed housing; the second rope drive assembly is connected to the second rotating shaft and the second drive shaft respectively, so that the second drive shaft drives the second rotating shaft to rotate.
[0015] Furthermore, the first rope-driven assembly includes:
[0016] The first wire rope has one end wound around the first drive shaft and the other end wound around the first rotating shaft;
[0017] The second wire rope has one end wound around the first drive shaft and the other end wound around the first rotating shaft; the first wire rope and the second wire rope are located at the two ends of the first rotating shaft respectively, and the first wire rope and the second wire rope are wound around the first drive shaft and the first rotating shaft in opposite directions;
[0018] A first guide assembly is disposed inside the fixed housing; the first guide assembly cooperates with the first wire rope and the second wire rope respectively, so that the first wire rope and the second wire rope can be turned.
[0019] Furthermore, the first guiding component includes:
[0020] Two first guide rods are disposed inside the fixed housing and are located on both sides of the first drive shaft, respectively;
[0021] Two first guide rollers are rotatably mounted on two first guide rods; the two first guide rollers cooperate with the first wire rope and the second wire rope respectively.
[0022] Furthermore, the second rope-driven assembly includes:
[0023] The third wire rope has one end wound around the second drive shaft and the other end wound around the second rotating shaft;
[0024] The fourth wire rope has one end wound around the second drive shaft and the other end wound around the second rotating shaft; the third wire rope and the fourth wire rope are located at opposite ends of the second rotating shaft, and the third wire rope and the fourth wire rope are wound around the second drive shaft and the second rotating shaft in opposite directions.
[0025] The second guide assembly is disposed inside the fixed housing; the second guide assembly cooperates with the third wire rope and the fourth wire rope respectively, so that the third wire rope and the fourth wire rope can be turned.
[0026] Furthermore, the second guiding component includes:
[0027] Two second guide rods are disposed inside the fixed housing and located on the same side of the second drive shaft;
[0028] Two second guide rollers are rotatably mounted on the second guide rod; the two second guide rollers cooperate with the third wire rope;
[0029] Two third guide rods are disposed inside the fixed housing and located on the same side of the second drive shaft;
[0030] Two third guide rollers are rotatably mounted on the third guide rod; the two third guide rollers cooperate with the fourth wire rope.
[0031] Furthermore, the first rotating shaft is provided with a through hole, the second rotating shaft is located in the through hole, and the third steel wire rope and the fourth steel wire rope are connected to the second rotating shaft through the through hole.
[0032] Furthermore, two fourth guide rollers are provided inside the through hole, and the two fourth guide rollers are respectively located on both sides of the second rotating shaft for guiding the third wire rope and the fourth wire rope.
[0033] Furthermore, a positioning plate is provided on the top of the second rotating shaft, the positioning plate is provided with a positioning groove, and a positioning block is provided on the clamp, the positioning block cooperating with the positioning groove.
[0034] Furthermore, a support block is provided inside the fixed housing to support the first rotating shaft and the first drive shaft.
[0035] A dental prosthesis milling machine includes the aforementioned cable-driven rotating structure for dental prosthesis milling machines.
[0036] Compared with the prior art, the beneficial effects of this utility model are:
[0037] In this invention, a fixed housing is disposed within the operating space of a dental prosthesis milling machine. One end of the fixed housing is provided with a rotating groove, within which a first rotating shaft is disposed. A second rotating shaft is disposed on the first rotating shaft. The interior of the fixed housing is also provided with a first drive shaft and a second drive shaft. The first drive shaft is connected to the first rotating shaft via a first rope drive assembly, and the second drive shaft is connected to the second rotating shaft via a second rope drive assembly. The first and second rotating shafts can extend outside the operating space to facilitate connection of a motor and a reducer. By extending the first and second rotating shafts outside the operating space and cooperating with the first and second rope drive assemblies, both the motor and the reducer are disposed outside the operating space for easy maintenance and replacement. Attached Figure Description
[0038] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0039] Figure 2 This is a schematic diagram of the fixture structure of this utility model.
[0040] Figure 3 This is a schematic diagram of the structure of the first and second rope drive components of this utility model.
[0041] Figure 4 This is a schematic diagram of the winding groove structure of this utility model.
[0042] Figure 5 This is a schematic diagram of the first and second rotating shafts of this utility model.
[0043] Figure 6 This is a cross-sectional view of the first rotating shaft of this utility model.
[0044] The numbers in the diagram represent: 1. Fixed outer shell; 11. Rotating groove; 12. Support block; 2. First rotating shaft; 21. Rotating hole; 22. Through hole; 23. Fourth guide roller; 3. Second rotating shaft; 31. Fixture; 32. Positioning plate; 4. First drive shaft; 5. Second drive shaft; 6. First rope drive assembly; 61. First wire rope; 62. Second wire rope; 63. First guide rod; 64. First guide roller; 7. Second rope drive assembly; 71. Third wire rope; 72. Fourth wire rope; 73. Second guide rod; 74. Second guide roller; 75. Third guide rod; 76. Third guide roller; 8. Winding groove; 9. Milling cutter. Detailed Implementation
[0045] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0048] In view of the shortcomings of the prior art, this embodiment provides a rope-driven rotating structure for a dental prosthesis carving and milling machine and a dental prosthesis carving and milling machine, as detailed below:
[0049] As attached Figure 1 and attached Figure 2As shown, a rope-driven rotating structure for a dental prosthesis carving and milling machine and the dental prosthesis carving and milling machine include a fixed housing 1, a first rotating shaft 2, a second rotating shaft 3, a first drive shaft 4, a second drive shaft 5, a first rope drive assembly 6, and a second rope drive assembly 7; one side of the fixed housing 1 is disposed on the inner wall of the operating space of the dental prosthesis carving and milling machine, and one end of the fixed housing 1 is provided with a rotating groove 11; the first rotating shaft 2 is rotatably disposed in the rotating groove 11, and a rotating hole 21 is provided through the middle position of the first rotating shaft 2; the second rotating shaft 3 is rotatably disposed in the rotating hole 21, and one end of the second rotating shaft 3 is provided with a clamp 31; the first rotating shaft 2 and the second rotating shaft 3 are arranged perpendicularly to realize the rotation of the two shafts; one end of the first drive shaft 4 is rotatably disposed inside the fixed housing 1. The other end extends out of the fixed housing 1 and the outside of the operating space to facilitate connection with an external drive source; the second drive shaft 5 is sleeved on the outer surface of the first drive shaft 4, and one end of the second drive shaft 5 is rotatably disposed inside the fixed housing 1, while the other end extends out of the fixed housing 1 and the outside of the operating space to facilitate connection with an external drive source; the first rope drive assembly 6 and the second rope drive assembly 7 are both disposed inside the fixed housing 1. The first rope drive assembly 6 is connected to the first rotating shaft 2 and the first drive shaft 4 respectively, so that the second drive shaft 5 can drive the second rotating shaft 3 to rotate. The second rope drive assembly 7 is connected to the second rotating shaft 3 and the second drive shaft 5 respectively, so that the second drive shaft 5 drives the second rotating shaft 3 to rotate.
[0050] The drive source can be a motor and reducer, a rotary cylinder or other components that drive the first drive shaft 4 and the second drive shaft 5 to rotate. When the first shaft 2 and the second shaft 3 need to rotate, the external drive source can drive the first drive shaft 4 to rotate. The first drive shaft 4 drives the first shaft 2 to rotate through the first rope drive assembly 6. Then the external drive source can drive the second drive shaft 5 to rotate. The second drive shaft 5 drives the second shaft 3 to rotate through the second rope drive assembly 7, so that the workpiece in the fixture 31 is at a suitable processing angle.
[0051] By extending the first drive shaft 4 and the second drive shaft 5 outside the operating space, and cooperating with the first rope drive assembly 6 and the second rope drive assembly 7, the motor and reducer are both located outside the operating space for easy maintenance and replacement. At the same time, compared with two motors and two reducers, the structure of the first drive shaft 4 and the second drive shaft 5, together with the first rope drive assembly 6 and the second rope drive assembly 7, occupies less space and makes it more convenient for the processing equipment to work in the operating space of the dental prosthesis milling machine.
[0052] In this embodiment, a milling cutter 9 is provided in the operating space of the dental prosthesis milling machine, and the clamp 31 on the second rotating shaft 3 corresponds to the milling cutter 9.
[0053] One embodiment of this application is shown in the appendix. Figure 3 and attached Figure 4As shown, the first rope drive assembly 6 includes a first wire rope 61, a second wire rope 62, and a first guide assembly. One end of the first wire rope 61 and the second wire rope 62 are both wound on the first drive shaft 4, and the other end of the first wire rope 61 and the second wire rope 62 are both wound on the first rotating shaft 2. The first wire rope 61 and the second wire rope 62 are located at opposite ends of the first rotating shaft 2. The first wire rope 61 and the second wire rope 62 are wound in opposite directions on the first drive shaft 4, and the first wire rope 61 and the second wire rope 62 are also wound in opposite directions on the first rotating shaft 2. When the first drive shaft 4 rotates clockwise, the first wire rope 61 on the first drive shaft 4 is in a contracted state, and the second wire rope 62 is in a relaxed state, while the first wire rope 61 on the first rotating shaft 2 is in a relaxed state, and the second wire rope 62 is in a contracted state.
[0054] The first guide assembly is disposed inside the fixed housing 1. The first guide assembly cooperates with the first wire rope 61 and the second wire rope 62 respectively, so that the first wire rope 61 and the second wire rope 62 can be turned to facilitate winding on the first rotating shaft 2.
[0055] The first guide assembly can provide steering for the first wire rope 61 and the second wire rope 62, facilitating connection with the first rotating shaft 2 and the first drive shaft 4. At the same time, by setting the first wire rope 61 and the second wire rope 62 to be wound in opposite directions, the first rotating shaft 2 can be driven to rotate in both directions by a single drive shaft. Moreover, both the first wire rope 61 and the second wire rope 62 are in a taut state, and the two wire ropes can restrict and fix the first rotating shaft 2, preventing the first rotating shaft 2 from rotating due to external forces.
[0056] In this embodiment, as shown in the appendix Figure 4 As shown, the first guide assembly includes two first guide rods 63 and two first guide rollers 64; the two first guide rods 63 are disposed inside the fixed housing 1 and are respectively located on both sides of the first drive shaft 4, and the two first guide rollers 64 are respectively rotatably disposed on the two first guide rods 63; the first steel wire rope 61 and the second steel wire rope 62 extending from the first drive shaft 4 are respectively connected to the first rotating shaft 2 through the two first guide rollers 64.
[0057] One embodiment of this application is shown in the appendix. Figure 3 and attached Figure 4As shown, the second rope drive assembly 7 includes a third wire rope 71, a fourth wire rope 72, and a second guide assembly. One end of the third wire rope 71 and the fourth wire rope 72 are both wound on the second drive shaft 5, and the other end of both are wound on the second rotating shaft 3. The third wire rope 71 and the fourth wire rope 72 are located at opposite ends of the second rotating shaft 3. The third wire rope 71 and the fourth wire rope 72 are wound in opposite directions on the second drive shaft 5 and on the second rotating shaft 3. When the second drive shaft 5 rotates clockwise, the third wire rope 71 on the second drive shaft 5 is in a contracted state, and the fourth wire rope 72 is in a relaxed state. Meanwhile, the third wire rope 71 on the second rotating shaft 3 is in a relaxed state, and the fourth wire rope 72 is in a contracted state.
[0058] The second guide assembly is located inside the fixed housing 1. The second guide assembly cooperates with the third wire rope 71 and the fourth wire rope 72 respectively, so that the third wire rope 71 and the fourth wire rope 72 can be turned to facilitate winding on the second rotating shaft 3.
[0059] The second guide assembly provides direction for the third wire rope 71 and the fourth wire rope 72, facilitating connection with the second rotating shaft 3 and the second drive shaft 5. Simultaneously, by reverse-winding the third wire rope 71 and the fourth wire rope 72, the second rotating shaft 3 can be driven to rotate bidirectionally via a single drive shaft. Furthermore, both the third wire rope 71 and the fourth wire rope 72 are taut, and the two wire ropes can restrict and fix the second rotating shaft 3, preventing it from rotating due to external forces.
[0060] In this embodiment, as shown in the appendix Figure 4 As shown, the second guide assembly includes two second guide rods 73, two second guide rollers 74, two third guide rods 75, and two third guide rollers 76. The two second guide rods 73 are disposed inside the fixed housing 1 and located on the same side of the second drive shaft 5. The two second guide rollers 74 are rotatably mounted on the second guide rods 73 and cooperate with the third wire rope 71 for steering the third wire rope 71. The two third guide rods 75 are disposed inside the fixed housing 1 and located on the same side of the second drive shaft 5. The second guide rods 73 and the third guide rods 75 are respectively located on both sides of the second drive shaft 5. The third guide rollers 76 are rotatably mounted on the third guide rods 75 and cooperate with the fourth wire rope 72 to provide steering.
[0061] In this embodiment, as shown in the appendix Figure 5 and attached Figure 6As shown, a through hole 22 is provided in the axial direction of the first rotating shaft 2. The through hole 22 is coaxially fitted with the first rotating shaft 2. The through hole 22 is connected to the rotating hole 21. The second rotating shaft 3 is also located in the through hole 22. The third steel wire rope 71 and the fourth steel wire extend into the interior of the first rotating shaft 2 through the two ends of the through hole 22 and are connected to the second rotating shaft 3.
[0062] In this embodiment, as shown in the appendix Figure 6 As shown, two fourth guide rollers 23 are provided inside the through hole 22. The two fourth guide rollers 23 are located on both sides of the second rotating shaft 3 and are connected to the third steel wire rope 71 and the fourth steel wire rope 72 respectively to provide guidance and prevent the third steel wire rope 71 and the fourth steel wire rope 72 from abutting against the side wall of the through hole 22, causing wear on the first rotating shaft 2.
[0063] One embodiment of this application is shown in the appendix. Figure 3 As shown, a positioning plate 32 is provided on the top of the second rotating shaft 3. The positioning plate 32 is provided with a positioning groove, and a positioning block is provided on the clamp 31. The positioning block cooperates with the positioning groove for positioning. The positioning plate 32 and the second rotating shaft 3 can be connected by threads or snaps, and the clamp 31 and the positioning plate 32 can also be connected by threads, snaps or bolts.
[0064] One embodiment of this application is shown in the appendix. Figure 3 As shown, a support block 12 is provided inside the fixed housing 1. The support block 12 is used to support the first rotating shaft 2 and the first drive shaft 4.
[0065] Specifically, the support block 12 is similar in shape to the fixed housing 1. One end of the support block 12 is provided with a slot, and the first rotating shaft 2 is rotatably disposed in the slot. Both ends of the first rotating shaft 2 are rotatably disposed on the two side walls of the slot. A placement groove is provided in the middle position of the support block 12. The parts of the first drive shaft 4 and the second drive shaft 5 that are used to wind the wire rope are located in the placement groove to facilitate the winding of the wire rope. The first drive shaft 4 and the second drive shaft 5 are rotatably connected to the support block 12. The support block 12 is also provided with multiple slots inside to place the first guide assembly, the second guide assembly, and multiple wire ropes.
[0066] One embodiment of this application is shown in the appendix. Figure 4 As shown, the first drive shaft 4 and the second drive shaft 5 are provided with winding grooves 8, which include multiple spiral grooves for winding steel wire rope.
[0067] This application also proposes a dental prosthesis milling machine, including the above-mentioned cable-driven rotation structure for dental prosthesis milling machines.
[0068] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.
Claims
1. A rope-driven rotating structure for a dental prosthesis milling machine, characterized in that, include: A fixed outer casing is installed within the operating space of a dental prosthesis milling machine; one end of the fixed outer casing is provided with a rotating groove. A first rotating shaft is rotatably disposed within the rotating groove; a rotating hole is provided through the first rotating shaft. The second rotating shaft is rotatably disposed within the rotating hole; a clamp is provided on the second rotating shaft. The first drive shaft has one end rotatably disposed inside the fixed housing, and the other end extends out of the fixed housing and the outside of the operating space; The second drive shaft is sleeved on the outer surface of the first drive shaft; One end of the first drive shaft is rotatably disposed inside the fixed housing, and the other end extends out of the fixed housing and the outside of the operating space; A first rope drive assembly is disposed inside the fixed housing; the first rope drive assembly is connected to the first rotating shaft and the first drive shaft respectively, so that the first drive shaft drives the first rotating shaft to rotate; The second rope drive assembly is disposed inside the fixed housing; the second rope drive assembly is connected to the second rotating shaft and the second drive shaft respectively, so that the second drive shaft drives the second rotating shaft to rotate.
2. The rope-driven rotation structure for a dental prosthesis milling machine according to claim 1, characterized in that, The first rope-driven assembly includes: The first wire rope has one end wound around the first drive shaft and the other end wound around the first rotating shaft; The second wire rope has one end wound around the first drive shaft and the other end wound around the first rotating shaft; the first wire rope and the second wire rope are located at the two ends of the first rotating shaft respectively, and the first wire rope and the second wire rope are wound around the first drive shaft and the first rotating shaft in opposite directions; A first guide assembly is disposed inside the fixed housing; the first guide assembly cooperates with the first wire rope and the second wire rope respectively, so that the first wire rope and the second wire rope can be turned.
3. The rope-driven rotation structure for a dental prosthesis milling machine according to claim 2, characterized in that, The first guiding component includes: Two first guide rods are disposed inside the fixed housing and are located on both sides of the first drive shaft, respectively; Two first guide rollers are rotatably mounted on two first guide rods; the two first guide rollers cooperate with the first wire rope and the second wire rope respectively.
4. The rope-driven rotation structure for a dental prosthesis milling machine according to claim 1, characterized in that, The second rope-driven assembly includes: The third wire rope has one end wound around the second drive shaft and the other end wound around the second rotating shaft; The fourth wire rope has one end wound around the second drive shaft and the other end wound around the second rotating shaft; the third wire rope and the fourth wire rope are located at opposite ends of the second rotating shaft, and the third wire rope and the fourth wire rope are wound around the second drive shaft and the second rotating shaft in opposite directions. The second guide assembly is disposed inside the fixed housing; the second guide assembly cooperates with the third wire rope and the fourth wire rope respectively, so that the third wire rope and the fourth wire rope can be turned.
5. The rope-driven rotation structure for a dental prosthesis milling machine according to claim 4, characterized in that, The second guide component includes: Two second guide rods are disposed inside the fixed housing and located on the same side of the second drive shaft; Two second guide rollers are rotatably mounted on the second guide rod; the two second guide rollers cooperate with the third wire rope; Two third guide rods are disposed inside the fixed housing and located on the same side of the second drive shaft; Two third guide rollers are rotatably mounted on the third guide rod; the two third guide rollers cooperate with the fourth wire rope.
6. The rope-driven rotation structure for a dental prosthesis milling machine according to claim 5, characterized in that, The first rotating shaft is provided with a through hole, the second rotating shaft is located in the through hole, and the third steel wire rope and the fourth steel wire rope are connected to the second rotating shaft through the through hole.
7. The rope-driven rotation structure for a dental prosthesis milling machine according to claim 6, characterized in that, The through hole is provided with two fourth guide rollers, which are located on both sides of the second rotating shaft and are used to guide the third wire rope and the fourth wire rope.
8. The rope-driven rotating structure for a dental prosthesis milling machine according to claim 1, characterized in that, The top of the second rotating shaft is provided with a positioning plate, the positioning plate is provided with a positioning groove, and the fixture is provided with a positioning block, the positioning block cooperating with the positioning groove.
9. The rope-driven rotation structure for a dental prosthesis milling machine according to claim 1, characterized in that, The fixed housing has a support block inside, which supports the first rotating shaft and the first drive shaft.
10. A dental prosthesis engraving and milling machine, characterized in that, include: The rope-driven rotating structure for a dental engraving and milling machine as described in any one of claims 1-9.