Clamp for false tooth carving machine

Abstract

The utility model relates to the technical field of false tooth carving machines, in particular to a clamp for a false tooth carving machine. The device comprises a swing arm and a coupler arranged on the swing arm, an arc-shaped chuck is arranged on the outer side of the coupler, grooves are symmetrically formed in the upper side and the lower side of the outer ring side wall of the arc-shaped chuck respectively, and a clamping hole matched with a clamping shaft of the coupler is formed in the portion, between the two grooves, of the outer ring side wall of the arc-shaped chuck. Locking holes penetrating through the arc-shaped chuck are formed in the arc-shaped chuck on the left side and the right side of the clamping hole. The fixture is convenient to operate, switching can be rapidly completed without disassembling the whole fixture so as to be matched with zirconium oxide discs of different sizes, time and labor are saved, working efficiency is improved, displacement caused by frequent replacement of the whole fixture can be avoided, carving accuracy is improved, product quality is guaranteed, and meanwhile, on the premise that clamping strength is guaranteed, machining efficiency is improved. The zirconia disc is fully utilized, waste of materials is reduced, particularly, the engraving precision of the tooth lip side is improved, and the problems existing in the prior art are solved.

Description

Technical Field

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

[0002] A dental prosthesis carving machine is a specialized piece of equipment used for the fabrication of dental restorations. It is primarily used for the efficient and precise processing of crowns, bridges, inlays, veneers, and other dental prostheses. Clamps are used to hold the processed materials in place, ensuring the stability and precision of the carving process. Currently, standard clamps are commonly used on dental prosthesis carving machines. These clamps mechanically hold or screw-fix regular-shaped material blocks (such as zirconia discs). Zirconia discs are mainly available in two diameters: 98mm and 103mm, requiring clamps of corresponding sizes. However, changing clamps requires completely disassembling the old clamp before assembling the new clamp and mold. This process is cumbersome and inefficient. Furthermore, repeated assembly and disassembly of the mounting base can cause relative displacement of the clamp's installation position, leading to errors in the carving process and affecting product quality. Additionally, existing clamps often consist of two semi-circular clamps assembled with bolts. Due to limitations in the processing position and requirements, material adhering to the inner side of the clamp during processing can be wasted, resulting in low material utilization. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a clamp for a dental prosthesis carving machine. It features a reasonable structural design and convenient operation, allowing for quick switching to match different sized zirconia discs without disassembling the entire clamp. This saves time and effort, improves work efficiency, and avoids displacement caused by frequent clamp changes, thereby improving carving accuracy and ensuring product quality. Furthermore, it fully utilizes the zirconia disc while maintaining clamping strength, reducing material waste, especially improving carving precision on the labial side of teeth, thus solving the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] A fixture for a dental prosthesis carving machine includes a swing arm and a coupling mounted on the swing arm. An arc-shaped chuck is provided on the outer side of the coupling. Grooves are symmetrically formed on the upper and lower sides of the outer ring sidewall of the arc-shaped chuck. A locking hole is provided on the outer ring sidewall of the arc-shaped chuck between the two grooves to cooperate with the locking shaft of the coupling. Locking holes are provided on the arc-shaped chuck on both sides of the locking hole, penetrating the arc-shaped chuck. Each locking hole is used to fix the arc-shaped chuck and the coupling. An arc-shaped groove is formed in the middle of the inner ring sidewall of the arc-shaped chuck along its arc direction. An arc-shaped limiting groove connected to the arc-shaped groove is formed at the bottom of the arc-shaped chuck along its arc direction. A clamping element is provided in the arc-shaped limiting groove of the arc-shaped chuck to cooperate with it.

[0006] Optionally, the clamping member includes an arc-shaped pressure plate, the arc length of which is equal to the arc length of the arc-shaped chuck, the outer ring sidewall of which abuts against the arc-shaped limiting groove, and the radius of the inner ring sidewall of which is equal to the radius of the inner ring sidewall of the arc-shaped chuck.

[0007] Optionally, the clamping component includes an arc-shaped adapter plate that is snapped into an arc-shaped groove. The arc length of the arc-shaped adapter plate is equal to the arc length of the arc-shaped chuck. Its outer ring sidewall abuts against the arc-shaped groove, and the radius of its inner ring sidewall is smaller than the radius of the inner ring sidewall of the arc-shaped chuck. An arc-shaped flange fixed to the arc-shaped adapter plate is provided on the inner ring sidewall of the arc-shaped chuck. An arc-shaped pressure plate that cooperates with the arc-shaped limiting groove is provided. The arc length of the arc-shaped pressure plate is equal to the arc length of the arc-shaped chuck. Its outer ring sidewall abuts against the arc-shaped limiting groove, and the radius of its inner ring sidewall is equal to the radius of the inner ring sidewall of the arc-shaped flange.

[0008] Optionally, the arc-shaped adapter plate and the arc-shaped chuck are connected by bolts.

[0009] Optionally, the arc-shaped pressure plate and the arc-shaped chuck are connected by bolts.

[0010] Optionally, the chuck hole is located at one-third of the arc length of the arc-shaped chuck.

[0011] The advantages of this utility model using the above-mentioned technical solution are: reasonable structural design, convenient operation, no need to disassemble the entire fixture, quick switching can be completed to match zirconia discs of different sizes, saving time and effort, improving work efficiency, and avoiding displacement caused by frequent replacement of the entire fixture, thereby improving the carving accuracy and ensuring product quality. At the same time, while ensuring the clamping strength, the zirconia disc can be fully utilized to reduce material waste, especially improving the carving accuracy of the labial side of the teeth. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;

[0014] Figure 3 This is a schematic diagram of the rear structure of the arc-shaped chuck;

[0015] Figure 4 A schematic diagram of the front structure of the arc-shaped chuck;

[0016] Figure 5 A three-dimensional structural diagram of the coupling;

[0017] Figure 6 A three-dimensional structural diagram of the clamp and the swing arm in operation;

[0018] In the diagram, 1 is the swing arm; 2 is the coupling; 3 is the arc-shaped chuck; 4 is the groove; 5 is the chuck shaft; 6 is the chuck hole; 7 is the locking hole; 8 is the arc-shaped groove; 9 is the arc-shaped limit groove; 10 is the arc-shaped pressure plate; 11 is the arc-shaped adapter plate; and 12 is the arc-shaped flange. Detailed Implementation

[0019] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0020] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0023] like Figure 1-6 As shown in this embodiment, a fixture for a dental prosthesis carving machine includes a swing arm 1 and a coupling 2 mounted on the swing arm 1. An arc-shaped chuck 3 is provided on the outer side of the coupling 2. Grooves 4 are symmetrically opened on the upper and lower sides of the outer ring sidewall of the arc-shaped chuck 3. A locking hole 6 is provided on the outer ring sidewall of the arc-shaped chuck 3 between the two grooves 4 to cooperate with the locking shaft 5 of the coupling 2. Locking holes 7 are opened on the arc-shaped chuck 3 on both sides of the locking hole 6, penetrating the arc-shaped chuck 3. Each locking hole 7 is used to fix the arc-shaped chuck 3 and the coupling 2. An arc-shaped groove 8 is opened in the middle of the inner ring sidewall of the arc-shaped chuck 3 along its arc direction. An arc-shaped limiting groove 9 connected to the arc-shaped groove 8 is opened at the bottom of the arc-shaped chuck 3 along its arc direction. A clamping member is provided in the arc-shaped limiting groove 9 of the arc-shaped chuck 3 to cooperate with it. Example 1

[0024] Optionally, the clamping member includes an arc-shaped pressure plate 10, the arc length of which is equal to the arc length of the arc-shaped chuck 3, the outer ring sidewall of which abuts against the arc-shaped limiting groove 9, and the radius of the inner ring sidewall of which is equal to the radius of the inner ring sidewall of the arc-shaped chuck 3.

[0025] This clamping device is suitable for 103mm diameter zirconia discs. The zirconia disc is inserted into the arc-shaped groove 8 of the arc-shaped chuck 3. Then, the arc-shaped pressure plate 10 is engaged in the arc-shaped limiting groove 9. The arc-shaped limiting groove 9 limits the position of the arc-shaped pressure plate 10, making it easier to align the bolts used to fix the arc-shaped pressure plate 10 and the arc-shaped chuck 3. After tightening the bolts, the zirconia disc can be clamped. Example 2

[0026] Optionally, the clamping component includes an arc-shaped adapter plate 11 that is snapped into an arc-shaped groove 8. The arc length of the arc-shaped adapter plate 11 is equal to the arc length of the arc-shaped chuck 3. Its outer ring sidewall abuts against the arc-shaped groove 8, and the radius of its inner ring sidewall is smaller than the radius of the inner ring sidewall of the arc-shaped chuck 3. An arc-shaped flange 12 fixed to the arc-shaped adapter plate 11 is provided on the inner ring sidewall of the arc-shaped chuck 3. An arc-shaped pressure plate 10 that cooperates with it is provided in an arc-shaped limiting groove 9. The arc length of the arc-shaped pressure plate 10 is equal to the arc length of the arc-shaped chuck 3. Its outer ring sidewall abuts against the arc-shaped limiting groove 9, and the radius of its inner ring sidewall is equal to the radius of the inner ring sidewall of the arc-shaped flange 12.

[0027] This clamping device is suitable for 98mm zirconia discs. First, the arc-shaped adapter 11 is inserted into the arc-shaped slot 8 and secured with bolts. Then, the zirconia disc is clamped onto the inner ring sidewall of the arc-shaped adapter 11 below the arc-shaped flange 12, and the arc-shaped pressure plate 10 is engaged in the arc-shaped limiting groove 9. The arc-shaped limiting groove 9 limits the position of the arc-shaped pressure plate 10, making it easier to align the bolts used to fix the arc-shaped pressure plate 10 and the arc-shaped chuck 3. After tightening the bolts, the arc-shaped pressure plate 10 and the arc-shaped flange 12 clamp the zirconia disc. Its reasonable structural design and convenient operation allow for quick switching to match different sized zirconia discs without disassembling the entire fixture, saving time and effort, improving work efficiency, and avoiding displacement caused by frequent fixture changes, thereby improving engraving accuracy and ensuring product quality.

[0028] Optionally, the arc-shaped adapter plate 11 and the arc-shaped chuck 3 are connected by bolts.

[0029] Optionally, the arc-shaped pressure plate 10 and the arc-shaped chuck 3 are connected by bolts.

[0030] Optionally, the chuck hole 6 is located at one-third of the arc length of the arc-shaped chuck 3. When the drill bit of the dental prosthesis engraving machine is engraving the vertical zirconia disk, the chuck hole of the arc-shaped chuck 3 is located at the upper one-third of the arc-shaped chuck 3, while the other two-thirds of the arc-shaped chuck 3 is located at the lower part. This provides stable support for the zirconia disk and increases the contact area between the drill bit and the upper part of the zirconia disk, facilitating engraving.

[0031] The arc-shaped chuck 3 not only firmly clamps the zirconia disc, providing stable support for the dental prosthesis engraving machine during engraving, but also reduces the contact area with the zirconia disc, exposing more of the disc's sides. This allows the dental prosthesis engraving machine to directly engrave the labial side of the teeth, improving product quality. It fully utilizes the zirconia disc while ensuring clamping strength, reducing material waste, and especially improving the engraving precision of the labial side of the teeth, thus solving problems existing in current technology.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0033] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A jig for a denture carving machine comprising a swing arm and a coupling provided on the swing arm, characterized in that, The arc-shaped chuck is provided outside the coupling, recesses are symmetrically formed on the upper and lower sides of the outer ring sidewall of the arc-shaped chuck, a clamping hole matched with the clamping shaft of the coupling is arranged on the arc-shaped chuck outer ring sidewall between the two recesses, locking holes are formed on the left and right sides of the arc-shaped chuck and penetrate the arc-shaped chuck, the locking holes are used for fixing the arc-shaped chuck and the coupling, an arc-shaped clamping groove is formed in the middle of the inner ring sidewall of the arc-shaped chuck along the arc direction, an arc-shaped limiting groove is formed in the bottom of the arc-shaped chuck along the arc direction and is connected with the arc-shaped clamping groove, and a pressing member matched with the arc-shaped limiting groove is arranged in the arc-shaped limiting groove.

2. The fixture for a denture sculpting machine according to claim 1, wherein The pressing member comprises an arc-shaped pressing plate, the arc length of the arc-shaped pressing plate is equal to the arc length of the arc-shaped chuck, the outer ring sidewall of the arc-shaped pressing plate abuts against the arc-shaped limiting groove, and the radius of the inner ring sidewall of the arc-shaped pressing plate is equal to the radius of the inner ring sidewall of the arc-shaped chuck.

3. The fixture for a denture sculpting machine according to claim 1, wherein The pressing member comprises an arc-shaped adapter plate clamped in the arc-shaped clamping groove, the arc length of the arc-shaped adapter plate is equal to the arc length of the arc-shaped chuck, the outer ring sidewall of the arc-shaped adapter plate abuts against the arc-shaped clamping groove, and the radius of the inner ring sidewall of the arc-shaped adapter plate is smaller than the radius of the inner ring sidewall of the arc-shaped chuck, an arc-shaped flange fixed to the arc-shaped adapter plate is arranged on the inner ring sidewall of the arc-shaped chuck, an arc-shaped pressing plate matched with the arc-shaped flange is arranged in the arc-shaped limiting groove, the arc length of the arc-shaped pressing plate is equal to the arc length of the arc-shaped chuck, the outer ring sidewall of the arc-shaped pressing plate abuts against the arc-shaped limiting groove, and the radius of the inner ring sidewall of the arc-shaped pressing plate is equal to the radius of the inner ring sidewall of the arc-shaped flange.

4. The fixture for a denture sculpt according to claim 3, wherein The arc-shaped adapter plate and the arc-shaped chuck are connected through bolts.

5. The fixture for a denture sculpt according to claim 2 or 3, wherein The arc-shaped pressing plate and the arc-shaped chuck are connected through bolts.

6. The fixture for a denture sculpt according to claim 1, wherein The clamping hole is arranged at one third of the arc length of the arc-shaped chuck. The clamping hole is arranged at one third of the arc length of the arc-shaped chuck.

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