Calibration device for false tooth engraving and milling machine and false tooth engraving and milling machine

Abstract

The utility model relates to the field of false tooth processing, and discloses a calibration device for a false tooth engraving and milling machine and the false tooth engraving and milling machine. The calibration device comprises a main board, a positioning piece and a calibration rod, wherein the positioning piece is electrically connected with the main board; an insulating part is arranged at one end of the calibration rod and is used for being inserted into the main shaft; the other end is provided with a contact part which is electrically connected with the mainboard. The contact part is used for making contact with the positioning piece so as to calibrate the main shaft. The calibration rod is partially insulated, so that the calibration rod and the positioning piece can be assembled on different main shafts to play a calibration role, the insulation property of the main shafts is not depended on any more, and the flexibility of calibration operation is improved.

Description

Technical Field

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

[0002] With the increasing prevalence of digitalization in the dental prosthesis manufacturing industry, dental prosthesis processing equipment is gradually replacing manual labor and entering dental prosthesis factories. During use, due to issues such as aging of the mechanical structure and workpiece placement, the actual position of the workpiece may deviate from the machine's preset position. Therefore, it is necessary to frequently calibrate the dental prosthesis processing equipment to improve processing accuracy.

[0003] Traditional manual calibration is inefficient and requires highly skilled operators, with the calibration error greatly influenced by the operator's level of expertise. Therefore, existing denture processing equipment often incorporates automatic calibration modules. For example, by mounting a calibration rod on the spindle of the denture processing equipment, the rod touches a calibration disc at a specific location, and the electrical circuit signal generated when the rod touches the disc records the spindle's coordinates, thus achieving automatic calibration.

[0004] However, during the calibration process, the current passing through the spindle can easily generate excess electrical signals that interfere with the calibration results. Although the spindle can be made of insulating materials, its insulation performance will significantly degrade after repeated use, rendering automatic calibration unusable. In other words, current calibration modules, because they are mounted on the spindle, are susceptible to interference from the spindle, resulting in insufficient flexibility and inaccurate calibration results.

[0005] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a calibration device for a dental prosthesis milling machine and a dental prosthesis milling machine, in order to solve the problems that the calibration module on the existing dental prosthesis milling machine is affected by the spindle, resulting in insufficient calibration accuracy and inflexible use.

[0007] The technical solution of this utility model is as follows:

[0008] A calibration device for a dental prosthesis milling machine, the dental prosthesis milling machine including a spindle for grinding the dental prosthesis to be processed; wherein, the calibration device includes:

[0009] Motherboard;

[0010] The positioning component is electrically connected to the motherboard;

[0011] The calibration rod has an insulating part at one end for insertion into the spindle, and a contact part at the other end for electrical connection with the motherboard.

[0012] The positioning element is positioned relative to the spindle, and the contact portion is used to contact the positioning element to calibrate the spindle.

[0013] The calibration device for a dental prosthesis milling machine, wherein the positioning element includes:

[0014] A clamping plate, wherein the clamping plate is provided with an installation groove, and at least one positioning slot is provided on the side wall of the installation groove;

[0015] A calibration disk is disposed in the mounting slot; the calibration disk is electrically connected to the motherboard via a wire; at least one positioning protrusion is provided on the edge of the calibration disk, the positioning protrusion being adapted to the positioning slot; and

[0016] A cover plate, connected to the clamping plate, covers the opening of the mounting groove; the cover plate is arc-shaped or annular, and a calibration window is formed on the inner side of the cover plate, which is used to face the spindle for inserting the calibration rod.

[0017] The calibration device for a dental prosthesis milling machine, wherein the cover plate and the clamping plate are magnetically connected.

[0018] The calibration device for a dental prosthesis milling machine includes a calibration rod comprising a conductive shaft and an insulating sleeve. One end of the conductive shaft has a contact end, and the other end is provided with the insulating sleeve. The insulating part is disposed on the insulating sleeve, and the contact part is disposed on the contact end.

[0019] The calibration device for a dental prosthesis milling machine, wherein the insulating sleeve comprises any one of a silicone rubber insulating sleeve, a synthetic silicone rubber insulating sleeve, or a polyvinyl chloride insulating sleeve.

[0020] The calibration device for a dental prosthesis milling machine, wherein the conductive shaft is a high-speed steel shaft or a carbon tool steel shaft.

[0021] The calibration device for a dental prosthesis milling machine, wherein the conductive shaft comprises:

[0022] Conductive shaft;

[0023] A conductive collar, disposed on the conductive shaft, is used to connect wires to the main board;

[0024] Wherein, the diameter of the insulating sleeve is less than or equal to the diameter of the conductive collar.

[0025] The calibration device for a dental prosthesis milling machine includes a calibration rod comprising a conductive body and an insulating coating. One end of the conductive body has the contact portion, and the other end is coated with the insulating coating to form the insulating portion.

[0026] The calibration device for a dental prosthesis milling machine, wherein the insulating coating is any one of polyethylene coating, polyurethane coating, epoxy resin coating, potassium silicate coating, and zinc oxide coating.

[0027] This application also discloses a dental prosthesis milling machine, which includes a calibration device for the dental prosthesis milling machine as described in any of the above.

[0028] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0029] The mainboard disclosed in this utility model can be externally powered. The mainboard, positioning component, and calibration rod form a closed loop. When the calibration rod contacts the positioning component, it generates an electrical signal, thereby calibrating the spatial coordinates of the spindle and achieving calibration. Since the end of the calibration rod that plugs into the spindle is insulated, current will not flow to the spindle during calibration, reducing interference signals and not affecting the use of the spindle, thus improving the accuracy of the calibration results. Furthermore, the calibration rod and positioning component can be freely combined and used, and are not fixed to the spindle, increasing flexibility and applicability to spindles of different sizes and models. This facilitates maintenance and replacement, reduces the cost of the calibration device, and simplifies the calibration operation. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the dental prosthesis engraving and milling machine in this utility model;

[0032] Figure 2 This is a schematic diagram of the assembly state of the calibration device and the spindle in this utility model;

[0033] Figure 3 This is an exploded view of the calibration device and spindle in this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the calibration rod in one embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the calibration rod in another embodiment of the present invention.

[0036] Among them, 10 is the spindle; 20 is the main board; 30 is the positioning component; 31 is the clamping plate; 311 is the mounting slot; 312 is the positioning slot; 32 is the calibration disk; 321 is the positioning protrusion; 33 is the cover plate; 331 is the calibration window; 40 is the calibration rod; 41 is the insulating part; 42 is the contact part; 43 is the conductive shaft core; 431 is the contact end; 432 is the conductive shaft rod; 433 is the conductive collar; 44 is the insulating sleeve; 45 is the conductive body; and 46 is the insulating coating. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Due to manufacturing techniques and tolerances, variations in the shape shown in the accompanying drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0039] For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to encompass not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways, and the spatial relational terms used herein will be interpreted accordingly.

[0040] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0041] See Figure 1In one embodiment of this utility model application, a calibration device for a dental prosthesis milling machine is disclosed. The dental prosthesis milling machine includes a spindle 10 for grinding the denture to be processed. The spindle 10 is set on a fixed frame and can be driven to move by setting multiple guide rails or robotic arms, so that the spindle 10 can move in the front-back, up-down, and left-right directions in three-dimensional space to flexibly grind the denture to be processed.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, the calibration device disclosed in this embodiment includes a motherboard 20, a positioning member 30, and a calibration rod 40. The positioning member 30 is electrically connected to the motherboard 20. One end of the calibration rod 40 is provided with an insulating part 41, which is used to be inserted into the spindle 10. The other end is provided with a contact part 42, which is electrically connected to the motherboard 20. The positioning member 30 is positioned relative to the spindle 10, and the contact part 42 is used to contact the positioning member 30 to calibrate the spindle 10.

[0043] The motherboard 20 disclosed in this embodiment includes, but is not limited to, a printed circuit board and can be externally powered. The motherboard 20 can be mounted on a rack or placed independently. Specifically, the motherboard 20, the positioning element 30, and the calibration rod 40 form a closed loop. The positioning element 30 can be fixed on the rack and positioned in the area where the denture is processed. The spindle 10 can move toward the positioning element 30, causing the calibration rod 40 to contact the positioning element 30. When the calibration rod 40 contacts the positioning element 30, an electrical signal is generated, thereby calibrating the spatial coordinates of the spindle 10 and achieving calibration.

[0044] In this embodiment, the end of the calibration rod 40 that is inserted into the spindle 10 is an insulating part 41. Therefore, current will not flow to the spindle 10 during the calibration process, reducing interference signals and adverse effects on the spindle 10, thus improving the accuracy of the calibration results. Moreover, since the calibration rod 40 is insulated from the spindle 10, the calibration results no longer depend on the insulation of the spindle 10, reducing the production and processing requirements of the spindle 10 and helping to reduce production costs.

[0045] From another perspective, the calibration rod 40 and positioning element 30 disclosed in this embodiment can be used in combination freely. The calibration rod 40 is not fixed on the spindle 10, and the positioning element 30 can also be detachably connected to the frame, thereby improving the flexibility of use, making the calibration device applicable to spindles 10 of different sizes and models, facilitating maintenance and replacement, reducing the cost of the calibration device, and simplifying the calibration operation.

[0046] like Figure 2 and Figure 3As shown in another embodiment of this application, the positioning component 30 includes a clamping plate 31, a calibration disk 32, and a cover plate 33. The clamping plate 31 is provided with a mounting groove 311, and at least one positioning slot 312 is provided on the side wall of the mounting groove 311. The calibration disk 32 is disposed in the mounting groove 311. The calibration disk 32 is electrically connected to the main board 20 through a wire. At least one positioning protrusion 321 is provided on the edge of the calibration disk 32, and the positioning protrusion 321 is adapted to the positioning slot 312. The cover plate 33 is connected to the clamping plate 31 and covers the opening of the mounting groove 311. The cover plate 33 is arc-shaped or annular, and a calibration window 331 is formed on the inner side of the cover plate 33. The calibration window 331 is used to face the spindle 10 to insert the calibration rod 40.

[0047] In this embodiment, the clamping plate 31 is used to support the calibration disk 32, and the cover plate 33 is used to fix the calibration disk 32 on the clamping plate 31, so as to realize the detachable assembly of the calibration disk 32 and the clamping plate 31. The area on the calibration disk 32 facing the calibration window 331 is usually provided with multiple insertion holes. During use, the contact part 42 of the calibration rod 40 extends from the calibration window 331 to contact the surface of the calibration disk 32, or is inserted into the insertion hole to realize the calibration action.

[0048] In addition, the calibration disk 32 is detachable, so different calibration disks 32 can be replaced to perform calibration operations with different accuracies, further improving the flexibility of the calibration device.

[0049] Specifically, in this embodiment, a positioning slot 312 is provided on the side wall of the mounting groove 311 to engage the positioning protrusion 321, keeping the calibration disk 32 fixed within the mounting groove 311 and preventing rotation. This ensures the calibration procedure is matched and measurements are performed according to the preset calibration method, improving the accuracy of the calibration results. The positioning protrusion 321 is positioned at the edge of the calibration disk 32, and the cover plate 33 covers the positioning protrusion 321 to further maintain the stability of the calibration disk 32.

[0050] For example Figure 2 and Figure 3 As shown, both the clamping plate 31 and the cover plate 33 disclosed in this embodiment can be set to a "C" shape, that is, the side of the mounting groove 311 forms an opening to partially expose the circumferential surface of the calibration disk 32, which facilitates the connection of external wires.

[0051] Specifically, as another embodiment of this application, a magnetic connection between the cover plate 33 and the clamping plate 31 is disclosed. In this embodiment, the clamping plate 31 can generate mutual attraction when it is close to the cover plate 33, and quickly connect, thereby achieving the effect of quick assembly and disassembly, so as to facilitate the rapid assembly of the calibration disk 32 and improve the work efficiency of calibration operation.

[0052] It should be noted that this embodiment only illustrates the connection method between the cover plate 33 and the clamping plate 31, but the protection scope of this utility model is not limited to this. Other types of connection methods, such as screw connection and snap connection, as long as they can achieve the technical effect disclosed in this application, can be regarded as equivalent replacements of the concept of this utility model and should also be within the protection scope of this application.

[0053] like Figure 4 As shown, in another embodiment of this application, the calibration rod 40 is disclosed to include a conductive shaft core 43 and an insulating sleeve 44. One end of the conductive shaft core 43 is formed with a contact end 431, and the other end is provided with the insulating sleeve 44. The insulating part 41 is provided on the insulating sleeve 44, and the contact part 42 is provided on the contact end 431.

[0054] The calibration rod 40 disclosed in this embodiment is manufactured separately using two materials, and the semi-finished products are then assembled together. The conductive shaft core 43 is made of a material with high hardness and good conductivity, such as a high-speed steel shaft core or a carbon tool steel shaft core, giving the conductive shaft core 43 a certain rigidity so that it is not easily bent when the contact end 431 contacts the calibration disk 32. The insulating sleeve 44 is made of a flexible material with good insulation, such as any one of silicone rubber insulating sleeve 44, synthetic silicone rubber insulating sleeve 44, or polyvinyl chloride insulating sleeve 44. The insulating sleeve 44 is set in a cylindrical shape, with the conductive shaft core 43 inserted into the inner cavity of the insulating sleeve 44, and the outer surface contacting the main shaft 10.

[0055] As can be seen, in this embodiment, the calibration rod 40 is composed of a conductive shaft core 43 and an insulating sleeve 44. The processing technology is simple and convenient, the production cost is low, and the insulation effect is good. It can be repeatedly assembled onto the spindle 10 for operation, and it is stable and durable.

[0056] For example Figure 4 As shown, in another embodiment of this application, the conductive shaft core 43 includes a conductive shaft 432 and a conductive collar 433. The conductive collar 433 is disposed on the conductive shaft 432 and is used to connect wires to the main board 20. The diameter of the insulating sleeve 44 is less than or equal to the diameter of the conductive collar 433.

[0057] In this embodiment, the conductive shaft 432 is a cylindrical rod. A conductive collar 433 is fitted onto the conductive shaft 432, separating its two ends. The diameter of the insulating sleeve 44 is smaller than that of the conductive collar 433. Therefore, due to the obstruction of the conductive collar 433, the insulating sleeve 44 can only be assembled on one side of the conductive collar 433, which helps maintain stability and prevents relative sliding between the insulating sleeve 44 and the conductive shaft 432 during use, thus improving safety. In addition, the conductive collar 433 and the conductive shaft 432 can be integrally formed, making it easier to connect wires to the conductive collar 433 without interference from the insulating sleeve 44.

[0058] like Figure 5 As shown, in another embodiment of this application, the calibration rod 40 is disclosed to include a conductive body 45 and an insulating coating 46. One end of the conductive body 45 is formed with the contact portion 42, and the other end is coated with the insulating coating 46 to form the insulating portion 41.

[0059] In this embodiment, insulation is achieved by coating the conductive body 45, reducing the weight of the calibration rod 40 and facilitating disassembly and relocation. Specifically, the conductive body 45 is made of high-speed steel or ferroalloy material, primarily serving to provide rigidity, maintain shape, and conduct electricity. The insulating coating 46 can be any one of polyethylene, polyurethane, epoxy resin, potassium silicate, or zinc oxide coatings. Applying insulating material to one end of the conductive body 45 ensures that the portion of the conductive body 45 in contact with the spindle 10 has insulating properties, achieving the effect of blocking current.

[0060] As another embodiment of this application, a dental prosthesis milling machine is disclosed, which includes a calibration device for the dental prosthesis milling machine as described in any of the above.

[0061] In summary, this application discloses a calibration device for a dental prosthesis milling machine, which includes a spindle 10 for grinding the prosthesis to be processed. The calibration device includes a main board 20, a positioning element 30, and a calibration rod 40. The positioning element 30 is electrically connected to the main board 20. One end of the calibration rod 40 has an insulating portion 41 for insertion into the spindle 10; the other end has a contact portion 42 for electrical connection to the main board 20. The positioning element 30 is positioned relative to the spindle 10, and the contact portion 42 contacts the positioning element 30 to calibrate the spindle 10. In this embodiment, the main board 20, positioning element 30, and calibration rod 40 form a closed loop. When the calibration rod 40 contacts the positioning element 30, an electrical signal is generated, thereby calibrating the spatial coordinates of the spindle 10 and achieving calibration. During the calibration process, current will not flow to the spindle 10, reducing interference with electrical signals and improving the accuracy of the calibration results. Moreover, the calibration device is highly flexible in use and can be applied to spindles 10 of different sizes and models.

[0062] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0063] It should be noted that this utility model is described using a calibration device for a dental prosthesis milling machine and a dental prosthesis milling machine as examples to illustrate the specific structure and working principle of this utility model. However, the application of this utility model is not limited to the calibration device for a dental prosthesis milling machine and the dental prosthesis milling machine. It can also be applied to the inspection, production and use of other similar workpieces.

[0064] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A calibration device for a dental prosthesis milling machine, the dental prosthesis milling machine comprising a spindle for grinding the dental prosthesis to be processed; characterized in that, The calibration device includes: Motherboard; The positioning component is electrically connected to the motherboard; The calibration rod has an insulating part at one end for insertion into the spindle, and a contact part at the other end for electrical connection with the motherboard. The positioning element is positioned relative to the spindle, and the contact portion is used to contact the positioning element to calibrate the spindle.

2. The calibration device for a dental prosthesis milling machine according to claim 1, characterized in that, The positioning element includes: A clamping plate, wherein the clamping plate is provided with an installation groove, and at least one positioning slot is provided on the side wall of the installation groove; A calibration disk is disposed in the mounting slot; the calibration disk is electrically connected to the motherboard via a wire; at least one positioning protrusion is provided on the edge of the calibration disk, the positioning protrusion being adapted to the positioning slot; and A cover plate, connected to the clamping plate, covers the opening of the mounting groove; the cover plate is arc-shaped or annular, and a calibration window is formed on the inner side of the cover plate, which is used to face the spindle for inserting the calibration rod.

3. The calibration device for a dental prosthesis milling machine according to claim 2, characterized in that, The cover plate and the clamping plate are magnetically connected.

4. The calibration device for a dental prosthesis milling machine according to claim 1, characterized in that, The calibration rod includes a conductive shaft and an insulating sleeve. One end of the conductive shaft has a contact end, and the other end is provided with the insulating sleeve. The insulating part is provided on the insulating sleeve, and the contact part is provided on the contact end.

5. The calibration device for a dental prosthesis milling machine according to claim 4, characterized in that, The insulating sleeve includes any one of silicone rubber insulating sleeve, synthetic silicone rubber insulating sleeve, and polyvinyl chloride insulating sleeve.

6. The calibration device for a dental prosthesis milling machine according to claim 4, characterized in that, The conductive shaft core is a high-speed steel shaft core or a carbon tool steel shaft core.

7. The calibration device for a dental prosthesis milling machine according to claim 4, characterized in that, The conductive shaft core includes: Conductive shaft; A conductive collar, disposed on the conductive shaft, is used to connect wires to the main board; Wherein, the diameter of the insulating sleeve is less than or equal to the diameter of the conductive collar.

8. The calibration device for a dental prosthesis milling machine according to claim 1, characterized in that, The calibration rod includes a conductive body and an insulating coating. One end of the conductive body has the contact portion, and the other end is coated with the insulating coating to form the insulating portion.

9. The calibration device for a dental prosthesis milling machine according to claim 8, characterized in that, The insulating coating is any one of polyethylene coating, polyurethane coating, epoxy resin coating, potassium silicate coating, and zinc oxide coating.

10. A dental prosthesis engraving and milling machine, characterized in that, Includes a calibration device for a dental prosthesis milling machine as described in any one of claims 1 to 9.

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