Special clamp for false tooth engraving and milling machine

Abstract

The utility model discloses a special fixture for a false tooth engraving and milling machine. The special fixture comprises a T-shaped fixture body, a glass ceramic fixing screw and a titanium column fixing screw, the T-shaped clamp body comprises a glass ceramic clamp body transversely arranged in the horizontal direction and a titanium column clamp body longitudinally arranged, and the rear face of the titanium column clamp body is connected with the middle of the front face of the glass ceramic clamp body. Two glass ceramic clamp holes are symmetrically formed in the two sides of the front face of the glass ceramic clamp body in the longitudinal direction, and two positioning pins are symmetrically installed in the longitudinal direction. The top of the front face of the glass ceramic clamp body is provided with an inclined face inclining forwards and downwards, and the two sides of the inclined face are symmetrically provided with two glass ceramic fixing holes extending backwards and downwards. The glass ceramic fixing hole is communicated with the glass ceramic clamp hole; a titanium column clamp hole is formed in the front portion of the titanium column clamp body in the vertical direction. Therefore, positioning and clamping can be efficiently completed, the clamping time is greatly saved, the working efficiency is improved, and the burden of workers is relieved.

Description

Technical Field

[0001] The utility model relates to a special fixture, in particular to a special fixture for a dental milling machine, belonging to the technical field of dental prosthesis processing. Background Art

[0002] Dental prostheses are generally milled and processed on a special dental milling machine with titanium posts, glass ceramics, etc. Before milling, it is necessary to fix the dental prosthesis through a fixture.

[0003] Currently, most of the fixtures adapted to the milling machine on the market are composed of a fixture body, positioning rods, fixture holes, etc. As Figure 1 shown, the left end of the square fixture body (01) is connected to the horizontal rotating shaft (02). There are vertical positioning holes on the side wall of the square fixture body (01). There is a vertically installed positioning rod (4) on the side wall of the square fixture body (01) at the edge of the positioning hole. The central axis of the positioning hole and the central axis of the installed positioning rod (04) are both perpendicular to the side wall of the square fixture body (01) at the edge of the positioning hole. The end of the glass ceramic block (03) is provided with a groove-shaped positioning notch (05) with an open end. The end of the glass ceramic block (03) extends into the positioning hole, and the installed positioning rod (04) slides into the positioning notch (05). However, the above fixture structure has the following deficiencies: a. The product has a single use function, the operation process is time-consuming, and the work efficiency is low; b. The product has too large a volume, affecting the working space of the spindle of the dental milling machine, and the operation is relatively laborious, increasing the work burden of the staff; c. The product design lacks affinity; the product shape is single.

[0004] Therefore, it is urgent to research and develop a special fixture suitable for a dental milling machine. Summary of the Invention

[0005] Aiming at the above existing technical problems, the utility model provides a special fixture for a dental milling machine, which can efficiently complete positioning and clamping, so as to achieve the technical purpose of greatly saving the clamping time, improving the work efficiency and reducing the burden of the staff.

[0006] To achieve the above purpose, the utility model provides a special fixture for a dental milling machine, including a T-shaped fixture body, a glass ceramic fixing screw, and a titanium post fixing screw;

[0007] The T-shaped fixture body includes a glass ceramic fixture body placed horizontally in the transverse direction and a titanium post fixture body placed longitudinally, and the back of the titanium post fixture body is connected to the middle of the front of the glass ceramic fixture body;

[0008] On both sides of the front of the glass-ceramic clamp body, two glass-ceramic fixture holes are symmetrically opened longitudinally, and two positioning pins are symmetrically installed longitudinally; the glass-ceramic fixture holes can match the tail handle of the glass-ceramic, and at the same time the positioning pins can match the positioning grooves of the glass-ceramic;

[0009] On the top of the front of the glass-ceramic clamp body, there is an inclined surface that slopes forward and downward, and two glass-ceramic fixing holes extending backward and downward are symmetrically opened on both sides of the inclined surface; the glass-ceramic fixing holes communicate with the glass-ceramic fixture holes and can match the glass-ceramic fixing screws; and the connection between the glass-ceramic fixing holes and the glass-ceramic fixture holes can match the position of the screw fixing groove of the glass-ceramic;

[0010] On the front part of the titanium column clamp body, a titanium column fixture hole is opened vertically, and the titanium column fixture hole can match the titanium column; the titanium column fixing screw can match the fixing screw hole of the titanium column.

[0011] Further, in the present utility model, the central axis of the glass-ceramic fixture hole is parallel to the central axis of the titanium column clamp body.

[0012] Even further, in the present utility model, the titanium column fixture hole is perpendicular to the glass-ceramic fixture hole.

[0013] Further, in the present utility model, the glass-ceramic fixing hole is perpendicular to the inclined surface.

[0014] Further, in the present utility model, two glass-ceramic identification numbers are symmetrically provided on both sides of the front of the glass-ceramic clamp body, and the glass-ceramic identification numbers are respectively located on the sides of the corresponding glass-ceramic fixture holes.

[0015] Further, in the present utility model, two fixture fixing holes are symmetrically opened vertically in the middle of the bottom surface of the glass-ceramic clamp body, and the fixture fixing holes match the fixture fixing screws.

[0016] Even further, in the present utility model, two fixture positioning grooves are symmetrically opened vertically in the middle of the bottom surface of the glass-ceramic clamp body.

[0017] Further, in the present utility model, a transmission shaft installation groove is opened longitudinally on the back of the glass-ceramic clamp body, and the transmission shaft installation groove is located in the middle of the two glass-ceramic fixture holes.

[0018] Further, in the present utility model, the four corners of the front of the glass-ceramic clamp body and the front side of the titanium column clamp body are all arc surfaces.

[0019] In summary, the present utility model has a more reasonable processing space distribution and a clearer functional partition. The key technical points are as follows:

[0020] A. The front top of the glass-ceramic fixture body is designed with an inclined surface, and the glass-ceramic fixing screw holes are installed obliquely, so that the glass-ceramic fixing screws are completely embedded in the screw fixing grooves of the glass-ceramic, which not only enhances the biting force between the fixture screws and the glass-ceramic, but also increases the working space for the spindle of the dental milling machine, and at the same time enhances the visual beauty.

[0021] B. Two glass-ceramic fixture holes can be used to process two glass-ceramic workpieces with different lengths at the same time, which not only improves the working efficiency, but also expands the types of glass-ceramic processing, saving costs for users.

[0022] C. The glass-ceramic is first positioned by the positioning pins and pre-tightened by pressing the fixing groove with the glass-ceramic fixing screws. At the same time, the inclined surface design can decompose the force of the glass-ceramic fixing screws into horizontal and vertical forces, so that the glass-ceramic can better adhere to the reference plane, increasing the processing accuracy.

[0023] D. The titanium post fixture body is designed with specific fixture holes. After the titanium post is placed in the titanium post fixture hole, it is locked with the titanium post fixing screws, and the operation is convenient and simple.

[0024] Compared with the existing products, the technical advantages of the present utility model are as follows:

[0025] 1. The glass-ceramic fixture body and the titanium post fixture body are combined into a T-shaped fixture, making the structure more rigid and the processing process more stable.

[0026] 2. Multidimensional space processing is adopted. Mainly, the installation directions of the titanium post and the glass-ceramic are different, so that the glass-ceramic fixture body and the titanium post fixture body do not interfere with each other, avoiding interference problems during processing or installation.

[0027] 3. The glass-ceramic fixture body and the titanium post fixture body adopt a symmetrical design, which not only makes it easy to find the processing coordinates, but also improves the calculation efficiency.

[0028] 4. The glass-ceramic fixture body is added with glass-ceramic identification numbers, which can be processed individually according to requirements and is more friendly.

[0029] 5. The drive shaft installation groove between the two glass-ceramic fixture holes is convenient for adopting a hidden drive shaft, increasing the beauty of the mechanical design.

[0030] 6. The glass-ceramic fixture body and the titanium post fixture body adopt arc transitions around, which is more ergonomic. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of the fixture of the existing milling machine;

[0032] Figure 2 is a schematic structural diagram of the existing glass-ceramic;

[0033] Figure 3 is a schematic structural view of an existing titanium column;

[0034] Figure 4 is a front view of the specific T-shaped clamp in the present utility model;

[0035] Figure 5 is a rear view of the specific T-shaped clamp in the present utility model;

[0036] Figure 6 is a top view of the specific T-shaped clamp in the present utility model;

[0037] Figure 7 is a bottom view of the specific T-shaped clamp in the present utility model;

[0038] Figure 8 is a left view of the specific T-shaped clamp in the present utility model;

[0039] Figure 9 is a right sectional view of the specific T-shaped clamp in the present utility model;

[0040] Figure 10 is a schematic use view of the present utility model;

[0041] In the figure: 01, square clamp body; 02, rotating shaft; 03, glass-ceramic block; 04, positioning rod; 05, positioning notch; 1, glass-ceramic; 11, cutting column; 12, positioning groove; 13, tail handle; 14, screw fixing groove; 2, titanium column; 21, fixing screw hole; 3, glass-ceramic clamp body; 31, glass-ceramic fixture hole; 32, positioning pin; 33, inclined surface; 34, glass-ceramic fixing hole; 35, glass-ceramic fixing screw; 36, fixture positioning groove; 37, fixture fixing screw; 38, fixture fixing hole; 39, glass-ceramic identification number; 310, drive shaft installation groove; 4, titanium-column clamp body; 41, titanium-column fixture hole; 42, titanium-column fixing screw. Detailed implementation manners

[0042] The present utility model will be further described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and mechanical components, structures, electrical aspects, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present application is only defined by the claims of the published patent. The terms used herein are only for describing specific embodiments and are not intended to limit the present application. Spatially related terms, such as "upper", "lower", "left", "right", "front", "rear", "middle", "both sides", etc., may be used in the text to facilitate the description of the relationship between one element or feature shown in the drawings and another element or feature.

[0044] As Figure 2 shown, the glass-ceramic 1 includes a cutting column 11 and a shank 13 connected below the cutting column 11; a positioning groove 12 is provided at the bottom edge of the side surface of the cutting column 11; and a screw fixing groove 14 is provided in a circle at the middle of the side surface of the shank 13. This is a market standard product and belongs to the workpiece to be processed.

[0045] As Figure 3 shown, the titanium column 2 is axially provided with a fixing screw hole 21 from the fixed reference surface. This is a market standard product and belongs to the workpiece to be processed.

[0046] As Figures 4 - 9 shown, the present embodiment provides a special fixture for a dental milling machine, including a T-shaped fixture body, a glass-ceramic fixing screw 35, a titanium-column fixing screw 42, and a fixture fixing screw 37, which are specifically introduced as follows.

[0047] As Figure 4 、 Figure 6 、 Figure 7 shown, the T-shaped fixture body includes a glass-ceramic fixture body 3 arranged horizontally in the transverse direction and a titanium-column fixture body 4 arranged longitudinally, and the rear of the titanium-column fixture body 4 is connected to the middle of the front of the glass-ceramic fixture body 3.

[0048] As Figure 4 、 Figure 9 shown, two longitudinally extending glass-ceramic fixture holes 31 are symmetrically provided on both sides of the front of the glass-ceramic fixture body 3, and two longitudinally placed positioning pins 32 are symmetrically installed. And the glass-ceramic fixture holes 31 can match with the shank 13 of the glass-ceramic 1, and at the same time, the positioning pins 32 can match with the positioning groove 12 of the glass-ceramic 1.

[0049] During specific implementation, the glass-ceramic 1 is inserted into the glass-ceramic fixture hole 31, and at the same time, the positioning pin 32 (Φ1.9x2mm) is snapped into the positioning groove 12 of the glass-ceramic 1, thereby positioning and inserting the glass-ceramic 1 into the glass-ceramic fixture hole 31. Moreover, the sizes of the two glass-ceramic fixture holes 31 are Φ5.9x13mm, which can be provided for two glass-ceramics 1 with lengths not greater than 40mm at the same time, increasing the working efficiency, expanding the types of glass-ceramic 1 processing, and saving costs for users. In addition, since the glass-ceramic fixture hole 31 runs longitudinally through the front and rear of the glass-ceramic fixture body 3 and is parallel to the central axis of the titanium post fixture body 4, the glass-ceramic fixture body 3 and the titanium post fixture body 4 do not affect each other.

[0050] As Figure 4 , Figure 8 , Figure 9 As shown, the front top of the glass-ceramic fixture body 3 is provided with an inclined surface 33 that slopes forward and downward, and glass-ceramic fixing holes 34 extending backward and downward are symmetrically opened on both sides of the inclined surface 33. The glass-ceramic fixing holes 34 communicate with the glass-ceramic fixture holes 31 and can be matched with the glass-ceramic fixing screws 35. Moreover, the connection between the glass-ceramic fixing holes 34 and the glass-ceramic fixture holes 31 can be matched with the position of the screw fixing groove 14.

[0051] It should be noted that the front top of the glass-ceramic fixture body 3 is designed with the inclined surface 33, and the glass-ceramic fixing holes 34 are also designed to be inclined. On the one hand, this design facilitates the complete embedding of the glass-ceramic fixing screw 35 of M4x4 button head screw into the glass-ceramic fixing hole 34, enhancing the biting force between the glass-ceramic fixing screw 35 and the glass-ceramic 1; on the other hand, this design makes the glass-ceramic fixture body 3 compact and small, increasing the working space for the spindle of the dental milling machine, and at the same time enhancing the visual aesthetic feeling.

[0052] During specific implementation, the glass-ceramic fixing holes 34 are opened perpendicular to the inclined surface 33. After the glass-ceramic 1 is positioned in the glass-ceramic fixture hole 31, the glass-ceramic fixing screw 35 is stuck in the screw fixing groove 14 of the glass-ceramic 1 through the glass-ceramic fixing hole 34, thereby fixedly inserting the tail handle 13 of the glass-ceramic 1 into the glass-ceramic fixture body 3.

[0053] In this way, when inserting the glass-ceramic 1, first, the positioning pin 32 determines the fixing position, and then the glass-ceramic fixing screw 35 presses and pre-tightens the fixing groove 14, making the installation operation convenient and simple. At the same time, the design of the inclined surface 33 can decompose the force of the glass-ceramic fixing screw 35 into a lateral force and a vertical force, enabling the glass-ceramic 1 to better adhere to the reference plane in contact with the glass-ceramic fixture body 3, that is, the entire plane where the glass-ceramic identification number 39 is located, thereby increasing the processing accuracy. Moreover, the overall design structure of the glass-ceramic fixture body 3 is simple, firm, and compact, facilitating operation.

[0054] As Figure 5 shown, a drive shaft installation groove 310 extending longitudinally is provided at the rear of the glass-ceramic clamp body 3, and the drive shaft installation groove 310 is located in the middle of two glass-ceramic fixture holes 31. The drive shaft installation groove 310 is a rectangular groove, which is the position for installing the drive shaft and is connected to the drive shaft through the fixture fixing hole 38, so as to facilitate hiding the drive shaft and increase the aesthetic feeling of the mechanical structure.

[0055] As Figure 6 、 Figure 7 、 Figure 9 shown, at the front part of the titanium column clamp body 4, a titanium column fixture hole 41 is provided in the vertical direction, and the titanium column fixture hole 41 can be matched with the titanium column 2.

[0056] During specific implementation, the titanium column fixture hole 41 penetrates through the top surface and the bottom surface of the titanium column clamp body 4 in the vertical direction and is perpendicular to the glass-ceramic fixture hole 31. The titanium column 2 is inserted into the titanium column fixture hole 41, and the titanium column fixing screw 42 fixes the titanium column 2 on the titanium column clamp body 4 through the fixing screw hole 21 of the titanium column 2.

[0057] As Figure 7 、 Figure 9 shown, in other embodiments, two fixture fixing holes 38 are symmetrically provided in the middle of the bottom surface of the glass-ceramic clamp body 3 in the vertical direction.

[0058] During specific implementation, the fixture fixing screw 37 fixes the T-shaped clamp body on the operating table through the fixture fixing hole 38.

[0059] As Figure 7 、 Figure 9 shown, in other embodiments, fixture positioning grooves 36 are symmetrically provided in the middle of the bottom surface of the glass-ceramic clamp body 3 in the vertical direction.

[0060] During specific implementation, the T-shaped fixture is fixed on the operating table by using the fixture positioning hole 38, which is convenient for positioning the fixture positioning groove 36.

[0061] As Figure 4 shown, in other embodiments, in order to facilitate distinguishing the processing sequence of the glass-ceramic 1, glass-ceramic identification numbers 39 are symmetrically provided on both sides of the front surface of the glass-ceramic clamp body 3, and the glass-ceramic identification numbers 39 are respectively located on the sides of the corresponding glass-ceramic fixture holes 31.

[0062] During specific implementation, the glass-ceramic identification numbers 39 can be designed as numbers 1 and 2, which is convenient for users to install according to requirements.

[0063] In other embodiments, the front four corners of the specific glass-ceramic clamp 3 and the front side surfaces of the specific titanium post clamp 4 are all designed with arc surfaces, which are more ergonomic.

[0064] As Figure 10 shown, the specific use process of the present utility model is as follows:

[0065] 1. Insert the tailstock 13 of the glass-ceramic 1 to be processed into the glass-ceramic fixture hole 31 through the guidance of the positioning pin 32, and push it until the bottom end face of the cutting post 11 of the glass-ceramic 1 contacts the front surface of the specific glass-ceramic clamp 3;

[0066] 2. Tighten the glass-ceramic fixing screw 35 inserted into the screw fixing groove 14 of the glass-ceramic 1;

[0067] 3. Insert the titanium post 2 into the titanium post fixture hole 41, and push it until the titanium post 2 contacts the step surface of the stepped titanium post fixture hole 41 in the specific titanium post clamp 4;

[0068] 4. Tighten the titanium post fixing screw 42 inserted into the titanium post fixture hole 41 of the titanium post 2.

[0069] In summary, the present utility model can not only be used to process the glass-ceramic 1, but also be used to process the titanium post 2. It has a clever design, more abundant functions, is applicable to various styles of workpieces to be processed, has a simpler operation, and the product is more user-friendly. And the entire T-shaped specific clamp is of an open structure, which is convenient for taking and placing workpieces to be processed and subsequent maintenance.

[0070] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A special fixture for a denture carving and milling machine, characterized in that, It includes a T-shaped clamp body, a glass-ceramic fixing screw, and a titanium post fixing screw; The T-shaped clamp body includes a glass-ceramic clamp body placed horizontally in the transverse direction and a titanium post clamp body placed longitudinally, and the back of the titanium post clamp body is connected to the middle of the front of the glass-ceramic clamp body; On both sides of the front of the glass-ceramic clamp body, two glass-ceramic fixture holes are symmetrically opened longitudinally, and two positioning pins are symmetrically installed longitudinally; the glass-ceramic fixture holes can match with the tail handle of the glass-ceramic, and at the same time, the positioning pins can match with the positioning grooves of the glass-ceramic; At the top of the front of the glass-ceramic clamp body, there is an inclined surface that slopes forward and downward, and two glass-ceramic fixing holes extending backward and downward are symmetrically opened on both sides of the inclined surface; the glass-ceramic fixing holes communicate with the glass-ceramic fixture holes and can match with the glass-ceramic fixing screws; and the connection between the glass-ceramic fixing holes and the glass-ceramic fixture holes can match the position of the screw fixing groove of the glass-ceramic; At the front of the titanium post clamp body, a titanium post fixture hole is opened vertically, and the titanium post fixture hole can match with the titanium post; the titanium post fixing screw can match with the fixing screw hole of the titanium post.

2. The special fixture for a denture carving and milling machine according to claim 1, wherein The central axis of the glass-ceramic fixture hole is parallel to the central axis of the titanium post clamp body.

3. A special fixture for a dental milling machine according to claim 1 or 2, characterized in that, The titanium post fixture hole is perpendicular to the glass-ceramic fixture hole.

4. A special fixture for a dental milling machine according to claim 1, characterized in that, The glass-ceramic fixing hole is perpendicular to the inclined surface.

5. The special fixture for a denture carving and milling machine according to claim 1, characterized in that, On both sides of the front of the glass-ceramic clamp body, two glass-ceramic identification numbers are symmetrically provided, and the glass-ceramic identification numbers are respectively located on the sides of the corresponding glass-ceramic fixture holes.

6. The special fixture for a denture carving and milling machine according to claim 1, characterized in that, In the middle of the bottom surface of the glass-ceramic clamp body, two fixture fixing holes are symmetrically opened vertically, and the fixture fixing holes match with the fixture fixing screws; At the back of the glass-ceramic clamp body, a drive shaft installation groove is opened longitudinally, and the drive shaft installation groove is located in the middle of the two glass-ceramic fixture holes; the drive shaft installation groove is a rectangular groove, which is the position for installing the drive shaft and is connected to the drive shaft through the fixture fixing holes.

7. The special fixture for a dental milling machine according to claim 6, characterized in that, In the middle of the bottom surface of the glass-ceramic clamp body, two fixture positioning grooves are symmetrically opened vertically.

8. The special fixture for a dental milling machine according to claim 1, characterized in that, At the four corners of the front of the glass-ceramic clamp body and on the front side of the titanium post clamp body, arc surfaces are used.

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