Denture engraving machine

Abstract

The present invention discloses a denture engraving machine, comprising: an engraving machine body, a spindle mechanism installation cavity and a denture processing cavity are arranged in the engraving machine body, a spindle movable groove is opened between the spindle mechanism installation cavity and the denture processing cavity; a positioning plate driving mechanism, a worm gear transmission mechanism and a denture positioning plate are arranged in the denture processing cavity, the positioning plate driving mechanism is connected to the denture positioning plate through the worm gear transmission mechanism, and the denture positioning plate is used to place the denture and drive the denture to rotate. The denture engraving machine of the present invention reduces the space required for installing the motor in the spindle mechanism installation cavity through the synchronous belt pulley transmission mechanism, reduces the space required for installing the motor in the denture processing cavity through the worm gear transmission mechanism, and then reduces the overall volume of the denture engraving machine, which is conducive to the miniaturization and compact development of the denture engraving machine.

Description

Technical Field

[0001] The invention relates to the technical field of denture processing, in particular to a denture carving machine. Background Art

[0002] Dentures are a type of restoration that uses artificial teeth to replace missing natural teeth. Denture engraving machines are a new type of engraving machine that is specifically designed to produce the dentures that users need. The working principle of a denture engraving machine is to design the model using computer software based on the digital scan data of the patient's oral cavity, and then transfer the designed model to the engraving machine for processing. The engraving machine will use a high-speed rotating tool to perform precise engraving and processing on the denture material according to the instructions of the design model, and finally produce customized dentures that meet the patient's oral needs.

[0003] The precise structure of the denture engraving machine integrates components for driving and positioning the spindle, as well as components for driving and positioning the denture positioning plate. However, the current design of the denture engraving machine has the problem of insufficient internal space utilization. The installation layout of each component fails to achieve the optimal space configuration, which directly leads to the increase in the overall equipment volume. The inefficient space utilization not only hinders the pace of the denture engraving machine's development towards miniaturization and compactness, but also limits its adaptability in a variety of medical environments, especially in dental clinics where space resources are precious. This problem is particularly prominent. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a denture engraving machine to solve the problem of insufficient internal space utilization in the existing denture engraving machine design. The installation layout of each component fails to achieve the optimal space configuration, which directly leads to the technical problem of increased overall equipment volume.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An embodiment of the present invention provides a denture engraving machine, comprising: an engraving machine body, wherein a spindle mechanism installation cavity and a denture processing cavity are provided in the engraving machine body, and a spindle movable groove is opened between the spindle mechanism installation cavity and the denture processing cavity; a spindle drive mechanism and a spindle assembly are provided in the spindle mechanism installation cavity, the spindle drive mechanism drives the spindle assembly to move, the spindle assembly passes through the spindle movable groove and extends into the denture processing cavity, the spindle assembly is used to install an engraving tool and drive the engraving tool to move; a positioning plate drive mechanism, a worm gear transmission mechanism and a denture positioning plate are provided in the denture processing cavity, the positioning plate drive mechanism is connected to the denture positioning plate through the worm gear transmission mechanism, and the denture positioning plate is used to place the denture and drive the denture to rotate.

[0007] Further, the spindle drive mechanism includes at least one of a first spindle drive mechanism, a second spindle drive mechanism, and a third spindle drive mechanism; wherein,

[0008] The first spindle driving mechanism is used to drive the spindle assembly to move in a first direction;

[0009] The second spindle driving mechanism is used to drive the spindle assembly to move in a second direction;

[0010] The third spindle driving mechanism is used to drive the spindle assembly to move in a third direction; the first direction, the second direction and the third direction are different from each other.

[0011] Furthermore, the first spindle drive mechanism includes a fixed seat, and a spindle motor, a screw slider assembly and a synchronous pulley assembly installed on the fixed seat, the output shaft of the spindle motor and the driving end of the screw slider assembly are connected through a synchronous pulley assembly, and the spindle motor and the screw slider assembly are located on the same side of the synchronous pulley assembly.

[0012] Furthermore, a first slide rail and a first movable channel are arranged on the bottom wall of the spindle mechanism installation cavity, and the first slide rail is arranged along the X-axis direction;

[0013] A first slide plate is also provided in the spindle mechanism installation cavity, the first slide plate is slidably connected to the first slide rail, a second slide rail and a second movable channel are provided on the first slide rail, and the second slide rail is provided along the Y-axis direction;

[0014] A second slide is also provided in the spindle mechanism installation cavity, the second slide is slidably connected to the second slide rail, a third movable channel is provided on the second slide, the spindle assembly is slidably connected to the second slide along the Z-axis direction and passes through the third movable channel, the second movable channel and the first movable channel along the Z-axis direction, and the first movable channel, the second movable channel and the third movable channel constitute the spindle movable groove;

[0015] When the first slide slides along the first slide rail, the first slide drives the spindle assembly to move along the X-axis direction in the first active channel; when the second slide slide slides along the second slide rail, the second slide drives the spindle assembly to move along the Y-axis direction in the second active channel and the first active channel.

[0016] Furthermore, two first slide rails are arranged on the bottom wall of the spindle mechanism installation cavity, the first movable channel is opened between the two first slide rails, and the center of gravity of the first assembly composed of the first slide plate, the second slide plate and the spindle assembly is located between the two first slide rails;

[0017] Two second slide rails are arranged on the first slide plate, the second movable channel is opened between the two second slide rails, and the center of gravity of the second assembly composed of the second slide plate and the spindle assembly is located between the two second slide rails.

[0018] Further, the spindle assembly includes a spindle and a spindle clamp, the spindle is mounted on the spindle clamp along the vertical direction, the spindle clamp and the second slide are slidably connected along the Z-axis direction through a sliding fit assembly, the sliding fit assembly includes a third screw rod, a vertical guide rail and a vertical slider, the vertical slider is slidably connected to the vertical guide rail, the third screw rod is provided with a third transmission nut, the spindle clamp is fixedly connected to the third transmission nut, the vertical guide rail is provided on the outside of the spindle clamp along the vertical direction, and the vertical slider is provided on the second slide;

[0019] Among them, there are two vertical guide rails, and two columns of vertical sliders are correspondingly arranged. The central axis of the main shaft is located on the vertical symmetry plane of the two columns of vertical sliders, and the line connecting the central axis of the main shaft and the third screw rod is perpendicular to the vertical symmetry plane of the two columns of vertical sliders.

[0020] Further, a first mounting frame is provided in the denture processing cavity, the positioning plate driving mechanism includes a first positioning plate motor, the worm gear transmission mechanism includes a first worm and a first worm wheel, the denture positioning plate is installed on the first mounting frame, and a first rotating shaft is provided on the denture positioning plate;

[0021] Among them, the axial direction of the first rotating shaft is perpendicular to the axial direction of the output shaft of the first positioning plate motor, the first worm is coaxially connected to the output shaft of the first positioning plate motor, the first worm wheel is coaxially connected to the first rotating shaft, and the first helical teeth arranged on the first worm are meshed with the first gear teeth arranged on the first worm wheel.

[0022] Furthermore, a second mounting frame is connected to the cavity wall of the denture processing cavity, the positioning plate driving mechanism further includes a second positioning plate motor, the worm gear transmission mechanism includes a second worm, a second worm wheel and a second rotating shaft, and the first mounting frame is connected to one end of the second rotating shaft;

[0023] Among them, the axial direction of the second rotating shaft is perpendicular to the axial direction of the output shaft of the second positioning plate motor, the second worm is coaxially connected to the output shaft of the second positioning plate motor, the second worm wheel is coaxially connected to the second rotating shaft, and the second helical teeth arranged on the second worm are meshed with the second gear teeth arranged on the second worm wheel; the axial direction of the first rotating shaft and the axial direction of the second rotating shaft are both horizontal directions, and the central axis of the first rotating shaft is perpendicular to and intersects with the central axis of the second rotating shaft.

[0024] Furthermore, at least one blowing hole and at least one dust suction hole are provided on the cavity wall of the denture processing cavity, wherein the blowing hole is used to connect an external air blowing device and guide the airflow to blow into the denture processing cavity, and the dust suction hole is used to connect an external air suction device and guide the airflow in the denture processing cavity to be discharged therefrom;

[0025] Wherein, the denture processing cavity comprises a top space and a bottom space, the blowing hole is arranged in the top space, and the dust suction hole is arranged in the bottom space.

[0026] Furthermore, a tool magazine is provided in the denture processing cavity, and a plurality of tool insertion holes for inserting tools are provided on the tool magazine. The hole walls of the tool insertion holes are at least partially made of elastic material. When the tool is inserted into the tool insertion hole, the elastic material has an interference fit with the tool.

[0027] The denture engraving machine of the present invention reduces the space required for installing a motor in a denture processing cavity through a worm gear transmission mechanism, thereby reducing the overall volume of the denture engraving machine, which is conducive to the miniaturization and compactness of the denture engraving machine.

[0028] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional view of a denture engraving machine according to an embodiment of the present invention;

[0030] Figure 2 A first internal view of the denture engraving machine according to an embodiment of the present invention;

[0031] Figure 3 A second internal view of the denture engraving machine according to an embodiment of the present invention;

[0032] Figure 4 A third internal view of the denture engraving machine according to an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of a first spindle motor and its connection structure of a denture engraving machine according to an embodiment of the present invention;

[0034] Figure 6 A fourth internal view of the denture engraving machine according to an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of the third spindle motor and its connection structure of the denture engraving machine according to an embodiment of the present invention;

[0036] Figure 8 An exploded view of the third spindle motor and its connection structure of the denture engraving machine according to an embodiment of the present invention;

[0037] Fig. 9 It is a schematic diagram of the matching relationship between the spindle assembly and the denture positioning plate of the denture engraving machine according to the embodiment of the present invention;

[0038] Fig.10 It is a schematic diagram of a first mounting frame and a connection structure of a denture engraving machine according to an embodiment of the present invention;

[0039] Fig.11 An exploded view of a first mounting frame and a connection structure of a denture engraving machine according to an embodiment of the present invention;

[0040] Fig.12 This is a schematic diagram of the connection structure of the first mounting frame and the second mounting frame of the denture engraving machine according to an embodiment of the present invention;

[0041] Fig.13 It is a schematic diagram of the internal connection structure of the first mounting frame and the second mounting frame of the denture engraving machine according to an embodiment of the present invention;

[0042] Fig.14 It is a schematic diagram of a first matching structure of a first slide plate and a second slide plate in a main shaft mechanism installation cavity of a denture engraving machine according to an embodiment of the present invention;

[0043] Fig.15 It is a schematic diagram of a second matching structure of the first slide plate and the second slide plate in the installation cavity of the spindle mechanism of the denture engraving machine according to an embodiment of the present invention;

[0044] Fig.16 An exploded view of the matching structure of the first slide plate and the second slide plate in the main shaft mechanism installation cavity of the denture engraving machine according to an embodiment of the present invention;

[0045] Fig.17 A three-dimensional view of a tool magazine of a denture engraving machine according to an embodiment of the present invention;

[0046] Fig.18 It is a first exploded view of the tool magazine of the denture engraving machine according to an embodiment of the present invention;

[0047] Fig.19It is a second exploded view of the tool magazine of the denture engraving machine according to an embodiment of the present invention;

[0048] Fig. 20 This is the third exploded view of the tool magazine of the denture engraving machine according to an embodiment of the present invention.

[0049] Description of reference numerals:

[0050] 1. Engraving machine body; 11. Spindle mechanism installation cavity; 12. Denture processing cavity; 121. Blowing hole; 122. Dust suction hole; 123. Blowing duct; 124. Dust suction duct; 13. Spindle movable groove; 131. First movable channel; 132. Second movable channel; 133. Third movable channel;

[0051] 2. Spindle assembly; 201. Spindle clamp; 2011. Vertical guide rail; 202. Spindle; 21. First spindle motor; 211. First screw rod; 212. First driving wheel; 213. First driven wheel; 214. First synchronous belt; 215. First transmission nut; 216. First mounting seat; 217. First slide rail; 218. First slide plate; 22. Second spindle motor; 221. Second screw rod; 222. Second slide rail; 223. Second slide plate; 2231. Vertical block; 2232. Vertical slider; 23. Third spindle motor; 231. Third screw rod; 232. Third driving wheel; 233. Third driven wheel; 234. Third synchronous belt; 235. Third transmission nut; 236. Third mounting seat;

[0052] 3. Denture positioning plate; 31. First mounting frame; 311. First positioning plate motor; 312. First worm; 313. First worm wheel; 314. First rotating shaft; 315. First plate; 316. Second plate; 32. Second mounting frame; 321. Second positioning plate motor; 322. Second worm; 323. Second worm wheel; 324. Second rotating shaft;

[0053] 4. Tool magazine; 401. Tool insertion hole; 402. Tool; 41. Tool insertion seat; 411. Second insertion hole; 412. Mounting groove; 42. Tool insertion block; 421. First insertion hole; 422. First step portion; 43. Press plate; 431. Window; 432. Second step portion. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0056] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “resin”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] Please see attached Figures 1 to 4 The embodiment of the present invention provides a denture engraving machine, comprising: an engraving machine body 1, wherein a spindle mechanism installation cavity 11 and a denture processing cavity 12 are arranged in the engraving machine body 1, and a spindle movable groove 13 is opened between the spindle mechanism installation cavity 11 and the denture processing cavity 12; a spindle driving mechanism and a spindle assembly 2 are arranged in the spindle mechanism installation cavity 11, the spindle driving mechanism drives the spindle assembly 2 to move, the spindle assembly 2 passes through the spindle movable groove 13 and extends into the denture processing cavity 12, the spindle assembly 2 is used to install an engraving tool 402 and drive the engraving tool 402 to move; a positioning plate driving mechanism, a worm gear transmission mechanism and a denture positioning plate 3 are arranged in the denture processing cavity 12, the positioning plate driving mechanism is connected to the denture positioning plate 3 through the worm gear transmission mechanism, the denture positioning plate 3 is used to place the denture and drive the denture to rotate, and when the positioning plate driving mechanism is started, the positioning plate driving mechanism drives the denture positioning plate 3 to rotate around a specified axis through the worm gear transmission mechanism.

[0062] It should be explained that a common problem in existing denture engraving machines is that the driving device is coaxially installed on one side of the driven part (such as a screw or a rotating shaft), which results in the need to reserve space for the driving device installation in the length, width, and height of the denture engraving machine, which is not conducive to the miniaturization and compactness of the denture engraving machine. However, in this embodiment, the positioning plate driving mechanism is connected to the denture positioning plate 3 through a worm gear transmission mechanism, and the output power of the positioning plate driving mechanism is turned 90° by the characteristics of the worm gear transmission mechanism before being transmitted to the denture positioning plate 3, so that the motor installation position in the positioning plate driving mechanism and the rotating shaft installation position connected to the denture positioning plate 3 can overlap in length and / or width and / or height, reducing the space required to be reserved in the denture processing cavity 12 for installing the motor, thereby effectively reducing the design size of the denture engraving machine, which is more in line with the modern requirements for the miniaturization and compactness of the structure of the denture engraving machine.

[0063] Further, the spindle drive mechanism includes at least one of a first spindle drive mechanism, a second spindle drive mechanism, and a third spindle drive mechanism; wherein the first spindle drive mechanism is used to drive the spindle assembly 2 to move in a first direction; the second spindle drive mechanism is used to drive the spindle assembly 2 to move in a second direction; the third spindle drive mechanism is used to drive the spindle assembly 2 to move in a third direction; the first direction, the second direction, and the third direction are different from each other. Preferably, the first direction, the second direction, and the third direction are the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively. It can be understood that the spindle assembly 2 in the denture engraving machine is a component used to carry the engraving knife to move, and the spindle drive mechanism is used to drive the spindle assembly 2 to move in a horizontal direction or a vertical direction to control the engraving knife carried by the spindle assembly 2 to perform complex engraving actions on the denture.

[0064] For further information, see Figures 4 to 6 , the first spindle drive mechanism includes a first mounting seat 216, and a first spindle motor 21, a first screw slider assembly and a first synchronous pulley assembly mounted on the first mounting seat 216, the output shaft of the first spindle motor 21 and the driving end of the first screw slider assembly are connected by transmission through the first synchronous pulley assembly, and the first spindle motor 21 and the first screw slider assembly are located on the same side of the first synchronous pulley assembly. In this embodiment, since the output shaft of the first spindle motor 21 and the driving end of the first screw slider assembly are connected by transmission through the first synchronous pulley assembly, it is no longer necessary to reserve a space for installing the first spindle motor 21 in the length direction of one side of the driving end of the first screw slider assembly. Corresponding to the denture engraving machine, the length direction of the first screw slider assembly can be the front-to-back direction, the left-right direction or the vertical direction of the denture engraving machine, so that the arrangement of this embodiment can effectively reduce the thickness of the spindle mechanism mounting cavity 11 in the front-to-back direction or the width in the left-right direction or the height in the vertical direction.

[0065] Specifically, the first screw slider assembly includes a first screw 211, the first synchronous pulley assembly includes a first driving wheel 212, a first driven wheel 213 and a first synchronous belt 214, the first spindle motor 21 and the first screw 211 are both connected to the first mounting seat 216, the output shaft of the first spindle motor 21 is connected to the first driving wheel 212, one end of the first screw 211 is connected to the first driven wheel 213, the first synchronous belt 214 is wound around the first driving wheel 212 and the first driven wheel 213, the first driving wheel 212, the first driven wheel 213, and the first synchronous belt 214 are located in the same vertical plane, and the first spindle motor 21 and the first screw 211 are located on the same side of the first driving wheel 212 and the first driven wheel 213.

[0066] Optionally, a first slide rail 217 and a first slide plate 218 are provided in the spindle mechanism installation cavity 11, the first slide rail 217 is provided along the axial direction of the first screw rod 211, the first slide plate 218 is slidably connected to the first slide rail 217, the first screw rod 211 is threaded with a first transmission nut 215, the first slide plate 218 is fixed to the first transmission nut 215, and the spindle assembly 2 is provided on the first slide plate 218 and moves synchronously with the first slide plate 218. When the first spindle motor 21 is started, the first screw rod 211 rotates to drive the first transmission nut 215 to move, the first transmission nut 215 drives the first slide plate 218 to move along the axial direction of the first screw rod 211 on the first slide rail 217, and then the first slide plate 218 drives the spindle assembly 2 to move in the axial direction of the first screw rod 211. Specifically, the axial direction of the first screw rod 211 is the X-axis direction, which corresponds to the length direction of the denture engraving machine on the denture engraving machine. Preferably, the first spindle motor 21 is located on the upper side of the first screw rod 211 in the vertical direction. It can be understood that installing the first spindle motor 21 on the upper side of the first screw rod 211 in the vertical direction fully utilizes the height space in the denture engraving machine. Generally, the height space required for the installation of the transmission mechanism (i.e., the third spindle motor 23 and the third screw rod 231 in the following text) used to drive the spindle assembly 2 to move in the vertical direction in the denture engraving machine is higher than the height space required for the installation of the first screw rod 211 and the first spindle motor 21. The first spindle motor 21 is installed on the upper side of the first screw rod 211, which fully utilizes this height difference and the original height space in the denture engraving machine.

[0067] Furthermore, the second spindle drive mechanism includes a second spindle motor 22, a second screw rod 221, a second driving wheel, a second driven wheel and a second synchronous belt, the output shaft of the second spindle motor 22 is connected to the second driving wheel, one end of the second screw rod 221 is connected to the second driven wheel, the second synchronous belt is wound around the second driving wheel and the second driven wheel, the second driving wheel, the second driven wheel and the second synchronous belt are located in the same vertical plane, and the second spindle motor 22 and the second screw rod 221 are located on the same side of the second driving wheel and the second driven wheel.

[0068] Optionally, a second mounting seat is provided on the first slide 218, and the second spindle motor 22 and the second screw rod 221 are both provided on the second mounting seat. Optionally, a second slide rail 222 and a second slide rail 223 are also provided on the first slide 218, the second slide rail 222 is provided along the axial direction of the second screw rod 221, the second slide rail 223 is slidably connected to the second slide rail 222, a second transmission nut is screwed on the second screw rod 221, the second slide rail 223 is fixed to the second transmission nut, and the spindle assembly 2 is provided on the second slide rail 223 and moves synchronously with the second slide rail 223. When the second spindle motor 22 is started, the second screw rod 221 rotates to drive the second transmission nut to move, and the second transmission nut drives the second slide rail 223 to move along the axial direction of the second screw rod 221 on the second slide rail 222, and then the second slide rail 223 drives the spindle assembly 2 to move in the axial direction of the second screw rod 221. Optionally, the axial direction of the second screw rod 221 is the Y-axis direction, which corresponds to the width direction of the denture engraving machine on the denture engraving machine.

[0069] Optionally, in another embodiment, the above-mentioned second driving wheel, second driven wheel, and second synchronous belt may not be used to realize the transmission connection between the second spindle motor 22 and the second screw rod 221, but the second screw rod 221 may be directly coaxially connected to the output shaft of the second spindle motor 22. This is because the area of ​​the first slide plate 218 must be smaller than the bottom cavity wall area of ​​the spindle mechanism mounting cavity 11. Only in this way can the first slide plate 218 be able to slide in the spindle mechanism mounting cavity 11. Therefore, the second screw rod 221 located on the first slide plate 218 can effectively utilize the space difference between the first slide plate 218 and the side wall of the spindle mechanism mounting cavity 11 to install the second spindle motor 22, so that the output shaft of the second spindle motor 22 is directly coaxially connected to the second screw rod 221. However, it should be explained that not all scenarios provide sufficient clearance for installing the second spindle motor 22. Therefore, the user can choose to install the second spindle motor 22 coaxially on the second screw rod 221 according to actual conditions, or to install the second spindle motor 22 on the side of the second screw rod 221 using the second driving wheel, second driven wheel, and second synchronous belt mentioned above.

[0070] For further information, see Figures 6 to 9 The third spindle driving mechanism includes a third spindle motor 23, a third screw rod 231, a third driving wheel 232, a third driven wheel 233 and a third synchronous belt 234. The output shaft of the third spindle motor 23 is connected to the third driving wheel 232, the upper end of the third screw rod 231 is connected to the third driven wheel 233, the third synchronous belt 234 is wound around the third driving wheel 232 and the third driven wheel 233, the third driving wheel 232, the third driven wheel 233 and the third synchronous belt 234 are located in the same horizontal plane, and the third spindle motor 23 and the third screw rod 231 are located on the same side of the third driving wheel 232 and the third driven wheel 233.

[0071] Optionally, a third mounting seat 236 is provided on the second slide plate 223, the third spindle motor 23 and the third screw rod 231 are both provided on the third mounting seat 236, a third transmission nut 235 is threadedly connected to the third screw rod 231, and the spindle assembly 2 is fixed on the third transmission nut 235, wherein the axial direction of the third screw rod 231 is the Z-axis direction, and the axial directions of the first screw rod 211, the second screw rod 221, and the third screw rod 231 together constitute the XYZ axis system of the movement of the spindle assembly 2. When the third spindle motor 23 is started, the third screw rod 231 rotates to drive the third transmission nut 235 to move, and the third transmission nut 235 drives the spindle assembly 2 to move along the axial direction of the third screw rod 231. Preferably, the output shaft of the third spindle motor 23 faces upward. Since the output shaft of the third spindle motor 23 and the upper end of the third screw rod 231 are both vertically upward and are connected by the third driving wheel 232, the third driven wheel 233, and the third synchronous belt 234, there is no need to reserve space in the height direction of the third screw rod 231 for installing the third spindle motor 23, thereby effectively reducing the height of the denture engraving machine.

[0072] For further information, see Figure 6 and Figures 14 to 16 , a first slide rail 217 and a first movable channel 131 are provided on the bottom wall of the spindle mechanism installation cavity 11, and the first slide rail 217 is arranged along the X-axis direction; a first slide plate 218 is also provided in the spindle mechanism installation cavity 11, and the first slide plate 218 is slidably connected to the first slide rail 217, and a second slide rail 222 and a second movable channel 132 are provided on the first slide plate 218, and the second slide rail 222 is arranged along the Y-axis direction; a second slide plate 223 is also provided in the spindle mechanism installation cavity 11, and the second slide plate 223 is slidably connected to the second slide rail 222, and a third movable channel 133 is provided on the second slide plate 223, and the spindle assembly 2 is arranged along the Z-axis direction The first movable channel 131, the second movable channel 132 and the third movable channel 133 constitute the spindle movable groove 13; wherein, when the first slide 218 slides along the first slide rail 217, the first slide 218 drives the spindle assembly 2 to move along the X-axis direction in the first movable channel 131; when the second slide 223 slides along the second slide rail 222, the second slide 223 drives the spindle assembly 2 to move along the Y-axis direction in the second movable channel 132 and the first movable channel 131.

[0073] In this embodiment, through the layered arrangement of the bottom cavity wall of the spindle mechanism mounting cavity 11, the first slide 218 and the second slide 223, the matching relationship between the first slide rail 217 and the first slide 218 provided on the bottom cavity wall of the spindle mechanism mounting cavity 11 is responsible for the sliding of the spindle assembly 2 in the X-axis direction (i.e., the width direction of the denture engraving machine), the matching relationship between the second slide 223 and the second slide rail 222 on the first slide 218 is responsible for the sliding of the spindle assembly 2 in the Y-axis direction (i.e., the length direction of the denture engraving machine), and the matching relationship between the spindle assembly 2 and the second slide 223 through the sliding matching assembly is responsible for the sliding of the spindle assembly 2 in the Z-axis direction (i.e., the height direction of the denture engraving machine), so that the movement of the spindle assembly 2 in each direction can be independently controlled without interfering with each other. It can be understood that in this embodiment, the layered arrangement of the bottom cavity wall of the spindle mechanism mounting cavity 11, the first slide 218 and the second slide 223, and the sliding connection therebetween achieves precise movement of the spindle assembly 2 in three-dimensional space, making the mass distribution of the spindle assembly 2 on the first slide 218 and the second slide 223 more uniform, reducing the weight imbalance in a single direction, thereby reducing the requirements for the slide rail strength. Due to the optimization of the mass distribution of the spindle assembly 2, the first slide rail 217 and the second guide rail in the denture engraving machine of this embodiment can adopt smaller-sized guide rails without relying on traditional high-strength large guide rails. This not only reduces the size and weight of the equipment, but also improves the portability and flexibility of the equipment, which is conducive to the miniaturized design of the denture engraving machine.

[0074] Optionally, the width of the first active channel 131 along the X-axis direction is greater than the width of the second active channel 132 along the X-axis direction, and the width of the second active channel 132 along the Y-axis direction is greater than the width of the third active channel 133 along the Y-axis direction. It can be understood that the width of the first active channel 131 along the X-axis direction is greater than the width of the second active channel 132 along the X-axis direction, mainly considering that as the bottom cavity wall of the spindle mechanism installation cavity 11, the first slide 218, and the second slide 223 are superimposed from the bottom layer to the top layer, the closer the object to the top layer is, the more its movement range is limited by the boundary of the lower layer, so the width of its active channel can be reduced accordingly to further promote the miniaturization design of the denture engraving machine. Similarly, the width of the second active channel 132 along the Y-axis direction is greater than the width of the third active channel 133 along the Y-axis direction, which is also to optimize space utilization, reduce unnecessary space waste, and make the entire transmission mechanism more compact.

[0075] Furthermore, two first slide rails 217 are arranged on the bottom wall of the spindle mechanism installation cavity 11, the first movable channel 131 is opened between the two first slide rails 217, and the center of gravity of the first assembly composed of the first slide plate 218, the second slide plate 223 and the spindle assembly 2 is located above the first movable channel 131 between the two first slide rails 217; two second slide rails 222 are arranged on the first slide plate 218, the second movable channel 132 is opened between the two second slide rails 222, and the center of gravity of the second assembly composed of the second slide plate 223 and the spindle assembly 2 is located above the second movable channel 132 between the two second slide rails 222. It can be understood that the center of gravity of the first assembly is designed between the two first slide rails 217, which can ensure that the first assembly can maintain good stability when moving in the X-axis direction, reduce shaking and errors, and the first slide rail 217 can bear weight more evenly, reduce wear and deformation caused by uneven weight distribution, so the first slide rail 217 in this embodiment can be appropriately narrowed in width compared with the traditional high-strength large guide rail. Designing the center of gravity of the second assembly to be between the two second slide rails 222 can ensure that the second assembly can maintain good stability when moving in the Y-axis direction, reduce shaking and errors, and the second slide rails 222 can bear the weight more evenly, reducing wear and deformation caused by uneven weight distribution. Therefore, the second slide rails 222 in this embodiment can be appropriately narrowed compared to traditional high-strength large guide rails.

[0076] For further information, please refer to Figures 6 to 9 The spindle assembly 2 includes a spindle 202 and a spindle clamp 201. The spindle 202 is installed on the spindle clamp 201 along the vertical direction. The spindle clamp 201 and the second slide 223 are slidably connected along the Z-axis direction through a sliding fitting assembly. The sliding fitting assembly includes a third screw rod 231, a vertical guide rail 2011 and a vertical slider 2232 slidably connected to the vertical guide rail 2011. The vertical guide rail 2011 is arranged on the outer side of the spindle clamp 201 along the vertical direction, and the vertical slider 2232 is arranged on the second slide 223; wherein, two vertical guide rails 2011 are arranged, and two rows of vertical sliders 2232 are correspondingly arranged. The central axis of the spindle 202 is located on the vertical symmetry plane of the two rows of vertical sliders 2232, and the line connecting the central axis of the spindle 202 and the third screw rod 231 is perpendicular to the vertical symmetry plane of the two rows of vertical sliders 2232. Preferably, the spindle 202 in this embodiment is an airless spindle 202, and the user does not need to add an air source generating device.

[0077] In this embodiment, the sliding fit assembly provides a stable vertical sliding surface and rotation limit for the spindle clamp 201. The vertical sliding surface is responsible for providing relative sliding between the spindle clamp 201 and the second slide plate 223, while the rotation limit is used to limit the rotation of the spindle clamp 201, ensuring the relative rotation of the third screw rod 231 and the third transmission nut 235. Therefore, when the third screw rod 231 rotates, the third transmission nut 235 can drive the spindle clamp 201 to move in the vertical direction. At the same time, the sliding fit assembly maintains the stability and accuracy of the spindle clamp 201, effectively reducing vibration and deviation during the lifting process. Furthermore, the setting of the two vertical guide rails 2011 and the two rows of vertical sliders 2232 can disperse the load during the lifting process, so that the stress borne by each component is more uniform, thereby improving the overall bearing capacity, and the cooperation between the two vertical guide rails 2011 and the two rows of vertical sliders 2232 can ensure that the movement trajectory of the spindle assembly 2 during the lifting process is smoother and straighter, reducing the error caused by the deviation of the movement trajectory. During operation, when the third screw rod 231 starts to rotate, the third transmission nut 235 drives the spindle clamp 201 and the spindle 202 to move in the vertical direction, and the two rows of vertical sliders 2232 slide on the two vertical guide rails 2011 respectively to provide stable support and guidance for the spindle clamp 201. During the lifting process, the close cooperation between the two vertical guide rails 2011 and the two rows of vertical sliders 2232 ensures the stability and accuracy of the spindle assembly 2 and avoids shaking and deviation. At the same time, multiple support points disperse the stress during the lifting process and reduce the wear and fatigue of a single component. Optionally, each column of vertical sliders 2232 may be provided with one or more, and in this embodiment, each column of vertical sliders 2232 is provided with two. Further, since the central axis of the main shaft 202 is located on the vertical symmetry plane of the two columns of vertical sliders 2232, it can be ensured that the main shaft 202 moves along a precise straight line track during the lifting process, and at the same time, since the line connecting the central axis of the main shaft 202 and the third screw rod 231 is perpendicular to the vertical symmetry plane of the two columns of vertical sliders 2232, the vibration and noise during the lifting process can be further reduced.

[0078] Specifically, a vertical block 2231 is disposed on the second slide plate 223 , and a vertical sliding block 2232 is disposed on a side of the vertical block 2231 facing the spindle clamp 201 .

[0079] For further information, see Figure 3 and Figures 9 to 13A first mounting frame 31 is provided in the denture processing cavity 12, the positioning plate driving mechanism includes a first positioning plate motor 311, the worm gear transmission mechanism includes a first worm 312 and a first worm wheel 313, the denture positioning plate 3 is installed on the first mounting frame 31, and a first rotating shaft 314 is provided at the center position of the denture positioning plate 3; wherein the axial direction of the first rotating shaft 314 is perpendicular to the axial direction of the output shaft of the first positioning plate motor 311, and the first worm 312 is coaxially connected to the first positioning plate motor 311 The first worm gear 313 is coaxially connected to the first rotating shaft 314, and the first spiral teeth provided on the first worm 312 are meshed with the first gear teeth provided on the first worm gear 313. When the first positioning plate motor 311 is started, the output shaft of the first positioning plate motor 311 drives the first worm 312 to rotate, the first worm 312 drives the first worm gear 313 to rotate, the first worm gear 313 drives the first rotating shaft 314 to rotate, and the first rotating shaft 314 drives the denture positioning plate 3 to rotate around the first rotating shaft 314. Specifically, the first rotating shaft 314 is arranged along the Y-axis direction.

[0080] In this embodiment, different from the installation method of the prior art in which the output shaft of the motor is coaxially connected to the plate to be rotated, the axial direction of the first rotating shaft 314 of this embodiment is perpendicular to the axial direction of the output shaft of the first positioning plate motor 311, and the first rotating shaft 314 and the output shaft of the first positioning plate motor 311 are connected through the first worm gear 313 and the first worm 312, which effectively reduces the space occupied by the first positioning plate motor 311 in the axial direction of the first rotating shaft 314, which is conducive to the miniaturized design of the denture engraving machine.

[0081] Furthermore, a second mounting frame 32 is connected to the cavity wall of the denture processing cavity 12, the positioning plate driving mechanism also includes a second positioning plate motor 321, the worm gear transmission mechanism includes a second worm 322, a second worm wheel 323 and a second rotating shaft 324, and the first mounting frame 31 is connected to one end of the second rotating shaft 324; wherein the axial direction of the second rotating shaft 324 is perpendicular to the axial direction of the output shaft of the second positioning plate motor 321, the second worm 322 is coaxially connected to the output shaft of the second positioning plate motor 321, the second worm wheel 323 is coaxially connected to the second rotating shaft 324, and the second worm 322 is provided The second helical teeth of the second positioning plate motor 321 are meshed with the second gear teeth provided on the second worm gear 323. When the second positioning plate motor 321 is started, the output shaft of the second positioning plate motor 321 drives the second worm 322 to rotate, the second worm 322 drives the second worm gear 323 to rotate, the second worm gear 323 drives the second rotating shaft 324 to rotate, and the second rotating shaft 324 drives the first mounting bracket 31 to rotate around the second rotating shaft 324. The axis direction of the first rotating shaft 314 and the axis direction of the second rotating shaft 324 are both horizontal, and the central axis of the first rotating shaft 314 is perpendicular to and intersects with the central axis of the second rotating shaft 324. Specifically, the second rotating shaft 324 is arranged along the X-axis direction.

[0082] In this embodiment, the axial direction of the second rotating shaft 324 is perpendicular to the axial direction of the output shaft of the second positioning plate motor 321, and the second rotating shaft 324 and the output shaft of the second positioning plate motor 321 are connected by the second worm gear 323 and the second worm 322, which effectively reduces the space occupied by the second positioning plate motor 321 in the axial direction of the second rotating shaft 324, which is conducive to the miniaturization design of the denture engraving machine. Specifically, when the second positioning plate motor 321 is started, the output shaft of the second positioning plate motor 321 transmits power to the second rotating shaft 324 through the second worm gear 323 and the second worm 322, so that the second rotating shaft 324 rotates around its own central axis, and the first mounting frame 31 connected to the second rotating shaft 324 will also rotate with the second rotating shaft 324, so as to drive the denture positioning plate 3 installed thereon to rotate together.

[0083] Specifically, the first mounting frame 31 includes a first plate 315 and a second plate 316 which are perpendicular to each other. The first plate 315 and the second plate 316 are combined in an "L" shape. The center of the first plate 315 is connected to the second rotating shaft 324. The denture positioning plate 3, the first positioning plate motor 311, the first worm gear 313, and the first worm 312 are all arranged on the second plate 316. In this embodiment, the first positioning plate motor 311 is used to drive the denture positioning plate 3 to rotate, and the second positioning plate motor 321 is used to drive the first mounting frame 31 to rotate. Further, the central axis of the first rotating shaft 314 is perpendicular to the second plate 316 and parallel to the first plate 315. The central axis of the second rotating shaft 324 is perpendicular to the first plate 315 and parallel to the second plate 316. Therefore, the vertical layout of the first rotating shaft 314 and the second rotating shaft 324 makes the entire transmission system more compact in space, can maximize the use of space, and reduce the overall size of the denture engraving machine, which is conducive to the miniaturization of the machine.

[0084] Preferably, the first positioning plate motor 311 is installed on the side of the first mounting frame 31 close to the second mounting frame 32, and the second positioning plate motor 321 is installed on the side of the second mounting frame 32 close to the first mounting frame 31. On the premise that the first positioning plate motor 311 reduces the space occupied in the axial direction of the first rotating shaft 314 and the second positioning plate motor 321 reduces the space occupied in the axial direction of the second rotating shaft 324, the installation layout of the first positioning plate motor 311 and the second positioning plate motor 321 close to each other further reduces the overall installation space of the positioning plate drive mechanism and the worm gear transmission mechanism in the denture processing cavity 12, which is more conducive to the miniaturized design of the denture engraving machine.

[0085] Specifically, the central axis of the first rotation shaft 314 and the central axis of the second rotation shaft 324 are respectively arranged along the X-axis direction and the Y-axis direction.

[0086] For further information, see Figure 3 and Figure 6The wall of the denture processing cavity 12 is provided with at least one blowing hole 121 and at least one dust suction hole 122. The blowing hole 121 is used to connect an external blowing device and guide the airflow to blow into the denture processing cavity 12. The dust suction hole 122 is used to connect an external suction device and guide the airflow in the denture processing cavity 12 to be discharged therefrom. The denture processing cavity 12 includes a top space and a bottom space. The blowing hole 121 is arranged in the top space, and the dust suction hole 122 is arranged in the bottom space. Optionally, the blowing hole 121 is connected to the external blowing device through a blowing pipe 123, and the dust suction hole 122 is connected to the external suction device through a dust suction pipe 124. It is understandable that during the engraving process, the powder chips tend to sink to the bottom of the denture processing cavity 12 due to gravity. The present embodiment sets a dust suction hole 122 in the bottom space of the denture processing cavity 12, so as to more effectively absorb the deposited powder chips. By setting the blowing hole 121 in the top space of the denture processing cavity 12, the powder chips suspended in a higher position can be blown away by the positive pressure airflow, and the powder chips are guided to flow downward, and finally enter the dust suction hole 122 to be sucked away, which helps to form an airflow circulation from top to bottom in the denture processing cavity 12, thereby improving the efficiency and comprehensiveness of powder chip removal.

[0087] Optionally, the blowing hole 121 and the dust suction hole 122 in the present embodiment are opened on the same side cavity wall of the denture processing cavity 12, so that the airflow blown out by the blowing hole 121 and the suction airflow formed by the dust suction hole 122 can form a larger range of airflow circulation in the internal space of the denture processing cavity 12, and more effectively discharge the powder chips in the denture processing cavity 12 with the airflow circulation.

[0088] Furthermore, the denture processing chamber 12 also includes a middle space between the top space and the bottom space, and the tool magazine 4 and the denture positioning plate 3 of the denture engraving machine are both arranged in the middle space. It can be understood that the tool magazine 4 and the denture positioning plate 3 are used as a tool for storing the engraving knife and a tool for carrying the denture, respectively, and they will inevitably be stained with a lot of dust during the process of denture engraving. In this embodiment, by arranging the blowing hole 121 in the upper space of the engraving component, the airflow blown out of the blowing hole 121 can blow away and carry the dust on the tool magazine 4 and the denture positioning plate 3. Subsequently, this airflow carrying dust is discharged from the dust suction hole 122 under the action of gravity, the guidance of the wall of the denture processing chamber 12 and the suction of the dust suction hole 122, thereby reducing the wear and blockage of the tool 402 and the denture positioning plate 3 by dust, and extending the service life of the machine.

[0089] For further information, see Figures 17 to 20, a tool magazine 4 is also provided in the denture processing cavity 12, and a plurality of tool insertion holes 401 for inserting a tool 402 are provided on the tool magazine 4, and the hole wall of the tool insertion hole 401 is at least partially made of elastic material. When the tool 402 is inserted into the tool insertion hole 401, the elastic material and the tool 402 are interference fit. It can be understood that in the denture engraving machine, the setting of the tool magazine 4 enables the denture engraving machine to quickly replace the tool 402, avoiding the time waste caused by the frequent replacement of the tool 402 during the production process, thereby improving the production efficiency. Specifically, the tool magazine 4 can store various types of tools 402 to meet various processing requirements. For example, in the denture engraving process, tools 402 of different shapes, sizes and materials may be needed to cope with different engraving tasks. The existence of the tool magazine 4 allows the doctor to quickly select the appropriate tool 402 as needed, thereby ensuring the processing quality.

[0090] In this embodiment, the elastic material can be a rubber material, such as styrene-butadiene rubber, butadiene rubber, chloroprene rubber, etc.; the elastic material can also be a thermoplastic elastomer material, such as SBS, SEBS, TPV, TPU, etc.; the elastic material can also be silicone. It should be noted that only a small number of elastic materials that can be used are listed here, and the categories of elastic materials that can be selected are not limited. In other embodiments, other elastic materials with the same elasticity as the above-mentioned rubber, thermoplastic elastomer material, and silicone can also be selected. The elastic material can cover the entire section of the hole wall of the inserting knife hole 401, or it can only cover part of the hole wall of the inserting knife hole 401. When the tool 402 is inserted into the inserting knife hole 401, the tool 402 will squeeze the elastic material part of the hole wall of the inserting knife hole 401. Due to the elastic deformation ability and resilience of the elastic material itself, it will provide a reverse extrusion elastic force to the tool 402, so that the tool 402 can be stably inserted into the inserting knife hole 401. It should be emphasized that the present embodiment utilizes the properties of the elastic material used to manufacture the tool magazine 4 to achieve the purpose of stably positioning the inserted tool 402, thereby reducing the space that needs to be reserved in the tool magazine 4 for placing the mechanical clamping structure during the design phase, thereby reducing the design volume of the entire tool magazine 4, which is more in line with the requirements of modern denture engraving for efficient, compact and precise processing.

[0091] Furthermore, the tool magazine 4 includes a tool inserting seat 41 and a tool inserting block 42, wherein the tool inserting block 42 is disposed on the tool inserting seat 41, and the tool inserting hole 401 is composed of a first inserting hole 421 provided on the tool inserting block 42 and a second inserting hole 411 provided on the tool inserting seat 41, wherein the first inserting hole 421 is coaxial with the second inserting hole 411. The tool inserting seat 41 and the tool inserting block 42 may be made of elastic material, so that the first inserting hole 421 and / or the second inserting hole 411 provide effective and stable positioning for the inserted tool 402.

[0092] In the first embodiment, the material of the inserting knife block 42 is an elastic material, and when the cutter 402 is inserted into the inserting knife hole 401, the first inserting hole 421 and the cutter 402 are interference-fitted. In this embodiment, the material of the inserting knife block 42 is an elastic material, and the material of the inserting knife seat 41 is other materials, so that when the cutter 402 is inserted into the inserting knife hole 401, it will be affected by the elastic material in the first inserting hole 421 and will be interference-fitted with the first inserting hole 421, and will not be affected by the elastic material in the second inserting hole 411. It should be considered that the interference fit between the elastic material and the cutter 402 may be damaged during the multiple insertion and removal of the cutter 402, so in this embodiment, only the material of the inserting knife block 42 is set to be an elastic material, so as to facilitate later maintenance. When the inserting knife block 42 is damaged, a new inserting knife block 42 can be directly replaced and installed on the inserting knife seat 41.

[0093] In the second embodiment, the material of the inserting knife seat 41 is an elastic material, and when the tool 402 is inserted into the inserting knife hole 401, the second inserting hole 411 and the tool 402 are interference-fitted. In this embodiment, the material of the inserting knife seat 41 is an elastic material, and the material of the inserting knife block 42 is other materials, so that when the tool 402 is inserted into the inserting knife hole 401, it is not affected by the elastic material in the first inserting hole 421, but is affected by the elastic material in the second inserting hole 411 and is interference-fitted with the second inserting hole 411. It should be considered that the interference fit between the elastic material and the tool 402 may be damaged during the multiple insertion and removal of the tool 402. Therefore, in this embodiment, only the material of the inserting knife seat 41 is set to be an elastic material, so as to facilitate later maintenance. When the inserting knife seat 41 is damaged, a new inserting knife seat 41 can be directly replaced and assembled with the original inserting knife block 42.

[0094] In the third embodiment, the inserting knife seat 41 and the inserting knife block 42 are both made of elastic material, and when the tool 402 is inserted into the inserting knife hole 401, the first inserting hole 421 and the second inserting hole 411 are both interference fit with the tool 402. In this embodiment, the inserting knife seat 41 and the inserting knife block 42 are both made of elastic material, so that the contact surface between the elastic material and the inserted tool 402 is larger, and the tool 402 is more stable in the inserting knife hole 401.

[0095] Furthermore, a mounting groove 412 is provided on the side of the knife seat 41 toward which the tool 402 is inserted, and a second insertion hole 411 is opened by the bottom of the mounting groove 412 along the insertion direction of the tool 402; the shape of the knife block 42 matches the mounting groove 412, the knife block 42 is embedded in the mounting groove 412, and the first insertion hole 421 on the knife block 42 corresponds one-to-one with the second insertion hole 411 on the knife seat 41 along the insertion direction of the tool 402.

[0096] Furthermore, in order to enhance the stability of the blade inserting block 42 installed on the blade inserting seat 41, the tool magazine 4 further includes a pressing plate 43, which is connected to the blade inserting seat 41, and the blade inserting block 42 is clamped between the pressing plate 43 and the blade inserting seat 41; a window 431 is provided on the pressing plate 43, and the insertion port of the first plug hole 421 is exposed through the window 431. Specifically, a first step portion 422 is provided on the side of the blade inserting block 42 away from the blade inserting seat 41, and a second step portion 432 is provided on the inner circumference of the window 431 toward the blade inserting block 42, and the second step portion 432 is pressed on the first step portion 422, so that the blade inserting block 42 is tightly pressed between the pressing plate 43 and the blade inserting seat 41, thereby avoiding the displacement of the blade inserting block 42 during use, and the first plug hole 421 and the second plug hole 411 are precisely aligned. Furthermore, the pressure plate 43 is detachably fixed to the inserting blade seat 41 by screws. When the inserting blade block 42 and / or the inserting blade seat 41 needs to be maintained, the pressure plate 43 can be removed and the inserting blade block 42 can be taken out from the mounting groove 412 of the inserting blade seat 41, which is convenient and quick.

[0097] Optionally, in order to minimize the design size of the denture engraving machine, the outer wall of the engraving machine body 1 in this embodiment can also be recessed inward, and the control circuit board can be stored in the recessed space. Preferably, the denture engraving machine in this embodiment has a built-in power supply box, and no external distribution box is required.

[0098] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A denture engraving machine, characterized in that: include: An engraving machine body, wherein a spindle mechanism installation cavity and a denture processing cavity are arranged in the engraving machine body, and a spindle movable groove is opened between the spindle mechanism installation cavity and the denture processing cavity; A spindle drive mechanism and a spindle assembly are arranged in the spindle mechanism installation cavity, the spindle drive mechanism drives the spindle assembly to move, the spindle assembly passes through the spindle movable groove and extends into the denture processing cavity, and the spindle assembly is used to install the engraving tool and drive the engraving tool to move; The denture processing cavity is provided with a positioning plate driving mechanism, a worm gear transmission mechanism and a denture positioning plate, wherein the positioning plate driving mechanism is connected to the denture positioning plate through the worm gear transmission mechanism, and the denture positioning plate is used to place the denture and drive the denture to rotate; A first slide rail and a first movable channel are arranged on the bottom wall of the spindle mechanism installation cavity, and the first slide rail is arranged along the X-axis direction; A first slide plate is also provided in the spindle mechanism installation cavity, the first slide plate is slidably connected to the first slide rail, a second slide rail and a second movable channel are provided on the first slide rail, and the second slide rail is provided along the Y-axis direction; A second slide is also provided in the spindle mechanism installation cavity, the second slide is slidably connected to the second slide rail, a third movable channel is provided on the second slide, the spindle assembly is slidably connected to the second slide along the Z-axis direction and passes through the third movable channel, the second movable channel and the first movable channel along the Z-axis direction, and the first movable channel, the second movable channel and the third movable channel constitute the spindle movable groove; When the first slide plate slides along the first slide rail, the first slide plate drives the spindle assembly to move along the X-axis direction in the first movable channel; when the second slide plate slides along the second slide rail, the second slide plate drives the spindle assembly to move along the Y-axis direction in the second movable channel and the first movable channel; Two first slide rails are arranged on the bottom wall of the spindle mechanism installation cavity, the first movable channel is opened between the two first slide rails, and the center of gravity of the first assembly composed of the first slide plate, the second slide plate and the spindle assembly is located between the two first slide rails; Two second slide rails are arranged on the first slide plate, the second movable channel is opened between the two second slide rails, and the center of gravity of the second assembly composed of the second slide plate and the spindle assembly is located between the two second slide rails; The spindle assembly includes a spindle and a spindle clamp, the spindle is mounted on the spindle clamp along the vertical direction, the spindle clamp and the second slide are slidably connected along the Z-axis direction through a sliding fit assembly, the sliding fit assembly includes a third screw rod, a vertical guide rail and a vertical slider, the vertical slider is slidably connected to the vertical guide rail, the third screw rod is provided with a third transmission nut, the spindle clamp is fixedly connected to the third transmission nut, the vertical guide rail is provided on the outside of the spindle clamp along the vertical direction, and the vertical slider is provided on the second slide; Among them, there are two vertical guide rails, and two columns of vertical sliders are correspondingly arranged. The central axis of the main shaft is located on the vertical symmetry plane of the two columns of vertical sliders, and the line connecting the central axis of the main shaft and the third screw rod is perpendicular to the vertical symmetry plane of the two columns of vertical sliders.

2. A denture engraving machine according to claim 1, characterized in that: The spindle drive mechanism includes at least one of a first spindle drive mechanism, a second spindle drive mechanism, and a third spindle drive mechanism; wherein, The first spindle driving mechanism is used to drive the spindle assembly to move in a first direction; The second spindle driving mechanism is used to drive the spindle assembly to move in a second direction; The third spindle driving mechanism is used to drive the spindle assembly to move in a third direction; the first direction, the second direction and the third direction are different from each other.

3. A denture engraving machine according to claim 2, characterized in that: The first spindle drive mechanism includes a first mounting seat, and a first spindle motor, a first screw slider assembly and a first synchronous pulley assembly mounted on the first mounting seat. The output shaft of the first spindle motor and the driving end of the first screw slider assembly are connected through the first synchronous pulley assembly. The first spindle motor and the first screw slider assembly are located on the same side of the first synchronous pulley assembly.

4. A denture engraving machine according to any one of claims 1 to 3, characterized in that: A first mounting frame is provided in the denture processing cavity, the positioning plate driving mechanism includes a first positioning plate motor, the worm gear transmission mechanism includes a first worm and a first worm wheel, the denture positioning plate is installed on the first mounting frame, and a first rotating shaft is provided on the denture positioning plate; Among them, the axial direction of the first rotating shaft is perpendicular to the axial direction of the output shaft of the first positioning plate motor, the first worm is coaxially connected to the output shaft of the first positioning plate motor, the first worm wheel is coaxially connected to the first rotating shaft, and the first helical teeth arranged on the first worm are meshed with the first gear teeth arranged on the first worm wheel.

5. A denture engraving machine according to claim 4, characterized in that: A second mounting frame is connected to the cavity wall of the denture processing cavity, the positioning plate driving mechanism further comprises a second positioning plate motor, the worm gear transmission mechanism comprises a second worm, a second worm wheel and a second rotating shaft, and the first mounting frame is connected to one end of the second rotating shaft; Among them, the axial direction of the second rotating shaft is perpendicular to the axial direction of the output shaft of the second positioning plate motor, the second worm is coaxially connected to the output shaft of the second positioning plate motor, the second worm wheel is coaxially connected to the second rotating shaft, and the second helical teeth arranged on the second worm are meshed with the second gear teeth arranged on the second worm wheel; the axial direction of the first rotating shaft and the axial direction of the second rotating shaft are both horizontal directions, and the central axis of the first rotating shaft is perpendicular to and intersects with the central axis of the second rotating shaft.

6. The denture engraving machine according to claim 1, characterized in that: The wall of the denture processing cavity is provided with at least one blowing hole and at least one dust suction hole, wherein the blowing hole is used to connect an external blowing device and guide the airflow to blow into the denture processing cavity, and the dust suction hole is used to connect an external suction device and guide the airflow in the denture processing cavity to be discharged therefrom; Wherein, the denture processing cavity comprises a top space and a bottom space, the blowing hole is arranged in the top space, and the dust suction hole is arranged in the bottom space.

7. The denture engraving machine according to claim 1, characterized in that: A tool magazine is also provided in the denture processing cavity, and a plurality of tool insertion holes for inserting tools are provided on the tool magazine. The hole walls of the tool insertion holes are at least partially made of elastic material. When the tool is inserted into the tool insertion hole, the elastic material has an interference fit with the tool.

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