T-shaped glass-ceramic block for denture carving mill and titanium column clamp

Abstract

This utility model discloses a T-shaped glass-ceramic block and titanium pillar clamp specifically for a dental prosthesis engraving and milling machine. It includes a T-shaped clamp body and a mounting base. The top and bottom surfaces of the horizontal branches of the T-shaped clamp body are symmetrically provided with several sets of top hole sequences and bottom hole sequences. Each set of top hole sequences is arranged in the order of glass-ceramic block fixing holes, titanium pillar fixing holes, and titanium pillar screw holes; each set of bottom hole sequences is arranged in the order of glass-ceramic block fixing holes, titanium pillar screw holes, and titanium pillar fixing holes. A corresponding glass-ceramic block positioning pin is installed next to each glass-ceramic block fixing hole. Each titanium pillar screw hole is interconnected with the symmetrical titanium pillar fixing holes. The front of the horizontal branches of the T-shaped clamp body has two symmetrical rows of glass-ceramic block screw holes. The upper row of glass-ceramic block screw holes is interconnected with the corresponding glass-ceramic block fixing holes in the top hole sequence; the lower row of glass-ceramic block screw holes is interconnected with the corresponding glass-ceramic block fixing holes in the bottom hole sequence. This improves the clamp's functionality and increases work efficiency.

Description

Technical Field

[0001] This utility model relates to a special fixture for a dental prosthesis milling machine, and more particularly to a T-shaped glass-ceramic block and titanium column fixture for a dental prosthesis milling machine, belonging to the field of dental prosthesis processing tooling technology. Background Technology

[0002] Dentures are generally made of titanium pillars, glass ceramic blocks, etc., and are machined on a dental CNC machine tool. Before the machining process, the dentures need to be fixed on the worktable of the CNC machine tool using a clamp.

[0003] Currently, most fixtures on the market that are compatible with CNC engraving and milling machines consist of a fixture body, a positioning bar, and fixture holes. For example... Figure 1 As shown, the left end of the square clamp (01) is connected to the horizontal rotation axis (02). A vertical positioning hole is provided on the side wall of the square clamp (01). A vertical mounting glass ceramic block positioning pin (32) is provided on the side wall of the square clamp (01) located at the edge of the positioning hole. The central axis of the positioning hole and the central axis of the glass ceramic block positioning pin (32) are perpendicular to the side wall of the square clamp (01) at the edge of the positioning hole. A groove-shaped positioning groove (12) with an end opening is provided at the end of the glass ceramic block (03). The end of the glass ceramic block (1) extends into the positioning hole, and the mounting glass ceramic block positioning pin (32) slides into the positioning groove (12).

[0004] However, the above-mentioned fixture structure has the following shortcomings: a) The product has a single function and is only suitable for processing glass ceramic blocks, but not for processing glass ceramic blocks or titanium pillars; b) The product is too large, which affects the working space of the dental engraving and milling machine spindle, making operation more laborious and increasing the workload of the staff; c) The product design lacks user-friendliness; the product shape is monotonous.

[0005] Therefore, there is an urgent need to develop and design a glass-ceramic block and titanium column clamp suitable for dental prosthesis milling machines. Summary of the Invention

[0006] To address the aforementioned technical problems, this utility model provides a T-shaped glass-ceramic block and titanium column clamp specifically for dental prosthesis milling machines. By efficiently positioning and clamping various workpieces, it aims to enhance the function of the clamp, improve work efficiency, and reduce the burden on workers.

[0007] To achieve the above objectives, this utility model provides a glass-ceramic block and titanium column clamp for a dental prosthesis milling machine, including a horizontally placed T-shaped clamp body and a mounting base connecting the vertical branch end face of the T-shaped clamp body;

[0008] The T-shaped clamp has several sets of top hole sequences and bottom hole sequences symmetrically opened on the top and bottom surfaces of its horizontal branches; each set of top hole sequences is arranged in the order of glass ceramic block fixing hole, titanium column fixing hole, and titanium column screw hole, and each set of bottom hole sequences is arranged in the order of glass ceramic block fixing hole, titanium column screw hole, and titanium column fixing hole; a corresponding glass ceramic block positioning pin is installed next to each glass ceramic block fixing hole; each titanium column screw hole is interconnected with the symmetrical titanium column fixing hole;

[0009] The T-shaped clamp has two rows of glass-ceramic block screw holes symmetrically opened on the front of the horizontal branch; wherein, the upper row of glass-ceramic block screw holes are connected to the corresponding glass-ceramic block fixing holes in the top hole sequence; and the lower row of glass-ceramic block screw holes are connected to the corresponding glass-ceramic block fixing holes in the bottom hole sequence.

[0010] Furthermore, the T-shaped clamp has two symmetrical upper and lower glass ceramic block fixing holes on the inner side of the vertical branch; a corresponding glass ceramic block positioning pin is installed next to each glass ceramic block fixing hole; two symmetrical upper and lower glass ceramic block screw holes are opened on the front of the vertical branch of the T-shaped clamp; each glass ceramic block screw hole is connected to the corresponding glass ceramic block fixing hole.

[0011] Furthermore, in this invention, the fixing hole of the glass-ceramic block matches the tail shank of the glass-ceramic block; the positioning pin of the glass-ceramic block matches the positioning groove of the glass-ceramic block; the screw hole of the glass-ceramic block matches the fixing screw of the glass-ceramic block; and the junction of the screw hole and the fixing hole of the glass-ceramic block matches the position of the screw fixing groove of the glass-ceramic block.

[0012] Furthermore, in this invention, the titanium column fixing hole matches the titanium column fixing post; and the titanium column screw hole matches the titanium column fixing post screw hole.

[0013] Furthermore, the T-shaped clamp has several glass-ceramic block identification numbers corresponding to the screw holes of the glass-ceramic block, and several titanium column identification numbers corresponding to the fixing holes of the titanium column.

[0014] Furthermore, the mounting base has a centrally located positioning pin positioning hole and a plurality of screw clearance holes distributed around the positioning pin positioning hole on its end face.

[0015] The T-shaped clamp has a centrally located support shaft mounting hole on the end face of the horizontal branch, and several bearing seat mounting holes distributed around the support shaft mounting hole.

[0016] In summary, this utility model can not only process glass ceramic blocks, but also titanium pillars. It has a more reasonable processing space distribution and clearer functional zoning, which enables efficient positioning and clamping of various workpieces to be processed. It achieves the technical effect of simpler positioning and clamping operations, faster and more accurate workpiece clamping, and reduced workpiece replacement and adjustment time.

[0017] Furthermore, compared with existing products, the technical advantages of this utility model are as follows:

[0018] a. It features multi-dimensional space processing capabilities, suitable for processing glass-ceramic blocks and titanium pillars. This not only satisfies various processing types and increases the applicability, but also avoids interference problems during processing or installation because the titanium pillars and glass-ceramic blocks have different installation directions.

[0019] b. Added titanium column identification numbers and glass-ceramic block identification numbers, enabling customized processing according to requirements.

[0020] c. The open fixture design facilitates quick and accurate workpiece placement and removal, reducing the time spent changing and adjusting workpieces.

[0021] d. The structure is more rigid, making the workpiece processing more stable, and the contact surface with the workpiece is larger, the clamping force is stronger, and the processing accuracy is higher. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the existing dental engraving and milling machine fixture;

[0023] Figure 2 This is a schematic diagram of the structure of an existing glass-ceramic block;

[0024] Figure 3 This is a schematic diagram of an existing titanium column.

[0025] Figure 4 This is a perspective view of the present utility model;

[0026] Figure 5 This is a front view of the present invention;

[0027] Figure 6 This is a top view of the present invention;

[0028] Figure 7 This is a bottom view of the present invention;

[0029] Figure 8 This is the left view of the present invention;

[0030] Figure 9 This is the right view of the present invention;

[0031] Figure 10This is a schematic diagram showing the installation of eight glass-ceramic blocks on the top and bottom surfaces of the T-shaped clamp in this utility model.

[0032] Figure 11 This is a schematic diagram showing the installation of eight titanium pillars on the top and bottom surfaces of the T-shaped clamp in this utility model.

[0033] Figure 12 This is a schematic diagram showing the installation of two glass-ceramic blocks on the inner side of the vertical branch of the T-shaped clamp in this utility model.

[0034] Figure 13 This is a schematic diagram of the installation of this utility model on the worktable of an existing dental engraving and milling machine;

[0035] Figure 14 This is a schematic diagram showing the installation of the mounting base, reducer, and machine tool motor in this utility model and existing dental engraving and milling machines;

[0036] In the diagram: 01. Square clamping body; 02. Rotary shaft; 1. Glass ceramic block; 11. Glass ceramic block cutting column; 12. Positioning groove; 13. Tail shank; 14. Screw fixing groove; 2. Titanium column; 21. Titanium column cutting column; 22. Fixing column; 23. Fixing column screw hole; 3. T-shaped clamping body; 31. Glass ceramic block fixing hole; 32. Glass ceramic block positioning pin; 33. Glass ceramic block screw hole; 34. Glass ceramic block identification number; 35. Titanium column fixing hole; 36. Titanium column identification number; 37. Titanium column screw hole; 4. Mounting seat; 41. Screw clearance hole; 42. Positioning pin positioning hole; 43. Support shaft mounting hole; 44. Bearing seat mounting hole; 5. Machine tool worktable; 51. Rotary arm; 52. Support shaft; 521. Bearing seat; 53. Positioning seat; 531. Reducer; 532. Machine tool motor. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0038] 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 changes in mechanical composition, structure, electrical, and operation may be made without departing from the spirit and scope of this disclosure. The following detailed description should not be considered limiting, and the scope of the embodiments of the present application is defined only by the claims of the published patents. The terminology used herein is for the purpose of describing particular embodiments only and is 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 herein to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0039] like Figure 2 As shown, the glass-ceramic block 1 includes a glass-ceramic block cutting post 11 and a tail shank 13, with the tail shank 13 mounted below the glass-ceramic block cutting post 11. The top side of the tail shank 13 has a positioning groove 12 for engaging with a glass-ceramic block positioning pin 32. Furthermore, a ring of screw-fixing grooves 14 is formed on the middle side of the tail shank 13 for engaging with glass-ceramic block fixing screws. This glass-ceramic block 1 is a market standard product, a workpiece to be processed, and is available in various sizes and models.

[0040] like Figure 3 As shown, the titanium pillar 2 includes a titanium pillar cutting pillar 21 and a fixing pillar 22, with the fixing pillar 22 installed below the titanium pillar cutting pillar 21. The end face of the fixing pillar 22 serves as a fixing reference surface, and a fixing pillar screw hole 23 is formed along its central axis for mating with a titanium pillar fixing screw. This titanium pillar 2 is also a market standard product, belonging to the category of work-in-process, and is available in various sizes and models.

[0041] like Figures 4-9 As shown, this utility model designs a T-shaped glass-ceramic block and titanium pillar clamp specifically for a dental engraving and milling machine. It includes a horizontally placed T-shaped clamp body 3 and a mounting base 4 connected to the vertical branch end face of the T-shaped clamp body 3. Using the T-shaped clamp body 3 as the core carrier, combined with a symmetrical multi-hole sequence layout, it achieves efficient processing of the glass-ceramic block 1 and the titanium pillar 2. The T-shaped clamp body 3 is composed of horizontal and vertical branches. The horizontal branches integrate multiple sets of functional hole sequences, and the mounting base 4 is connected to the outer side of the vertical branches, adapting to the interface of mainstream engraving and milling machine operating tables.

[0042] like Figure 6 As shown, the top surface of the three horizontal branches of the T-shaped clamp has several sets of top hole sequences repeatedly formed. Each set of top hole sequences is arranged in the order of glass-ceramic block fixing hole 31, titanium pillar fixing hole 35, and titanium pillar screw hole 37, forming a workstation of "glass-ceramic block 1 - titanium pillar 2 - titanium pillar fixing screw". Furthermore, a corresponding glass-ceramic block positioning pin 32 is installed next to each glass-ceramic block fixing hole 31 for precise positioning of the glass-ceramic block 1.

[0043] like Figure 7 As shown, the bottom surface of the three horizontal branches of the T-shaped clamp also has several sets of bottom hole sequences. Each set of bottom hole sequences is arranged in the order of glass ceramic block fixing hole 31, titanium column screw hole 37, and titanium column fixing hole 35, forming a workstation of "glass ceramic block 1 - titanium column fixing screw - titanium column 2". In addition, a corresponding glass ceramic block positioning pin 32 is installed next to each glass ceramic block fixing hole 31 to accurately position the glass ceramic block 1 and ensure the symmetry and consistency of the bottom and top surfaces.

[0044] like Figure 4 As shown, the several sets of top hole sequences and several sets of bottom hole sequences are symmetrically distributed along the central axis of the T-shaped clamp body 3. In the symmetrical set of top hole sequences and the set of bottom hole sequences, the glass-ceramic block fixing holes 31, titanium pillar fixing holes 35, and titanium pillar screw holes 37 in the top hole sequence are symmetrical to the glass-ceramic block fixing holes 31, titanium pillar screw holes 37, and titanium pillar fixing holes 35 in the bottom hole sequence. Furthermore, the titanium pillar screw holes 37 are interconnected with the corresponding titanium pillar fixing holes 35, facilitating the fixing of the titanium pillars 2.

[0045] like Figure 5 As shown, the front of the horizontal branch of the T-shaped clamp 3 is symmetrically provided with two rows of glass-ceramic block screw holes 33 along the central axis of the T-shaped clamp 3. Each glass-ceramic block screw hole 33 in the upper row is connected to each glass-ceramic block fixing hole 31 in several sets of top holes, and each glass-ceramic block screw hole 33 in the lower row is connected to each glass-ceramic block fixing hole 31 in several sets of bottom holes, forming a through-type locking channel to ensure a rigid connection between the glass-ceramic block 1 and the clamp. Furthermore, each glass-ceramic block screw hole 33 is interconnected with its corresponding glass-ceramic block fixing hole 31 to ensure that the glass-ceramic block 1 can be fixed by glass-ceramic block fixing screws.

[0046] In particular, the top and bottom surfaces of the three horizontal branches of the T-shaped clamp are symmetrically provided with glass-ceramic block fixing holes 31, supporting symmetrical installation of the glass-ceramic blocks 1 in both directions, such as... Figure 10 As shown. The titanium pillar screw holes 37 and titanium pillar fixing holes 35 on the top and bottom surfaces of the three horizontal branches of the T-shaped clamp are bidirectionally connected, allowing the titanium pillar fixing holes 35 on the top and bottom surfaces to be staggered, supporting the staggered installation of the titanium pillars 2 in both directions, as shown. Figure 11 As shown.

[0047] It should be noted that, to facilitate the installation of the glass-ceramic block 1, the glass-ceramic block fixing hole 31 matches the tail shank 13 of the glass-ceramic block 1, ensuring that the tail shank 13 can be securely inserted. The glass-ceramic block positioning pin 32 matches the positioning groove 12 of the glass-ceramic block 1, used to accurately position the glass-ceramic block 1. The glass-ceramic block screw hole 33 matches the glass-ceramic block fixing screw, ensuring that the glass-ceramic block fixing screw can be securely inserted. The junction of the glass-ceramic block screw hole 33 and the glass-ceramic block fixing hole 31 matches the screw fixing groove 14 of the glass-ceramic block 1, ensuring that the glass-ceramic block fixing screw is firmly engaged in the screw fixing groove 14, thereby ensuring that the glass-ceramic block 1 can be securely installed and fixed in the glass-ceramic block fixing hole 31.

[0048] It should also be noted that, to facilitate the installation of the titanium column 2, the titanium column fixing hole 35 matches the fixing post 22 of the titanium column 2, ensuring that the fixing post 22 can be firmly inserted. The titanium column screw hole 37 matches the fixing post screw hole 23 of the titanium column 2, and the titanium column 2 is firmly fixed in the titanium column fixing hole 35 by the titanium column fixing screw.

[0049] like Figures 4-7 As shown, in other embodiments, four sets of bottom holes are repeatedly formed on the bottom surface of the horizontal branch of the T-shaped clamp body 3. Four glass-ceramic screw holes 33 are provided in each of the two rows. Thus, the T-shaped clamp body 3 has a total of eight glass-ceramic block fixing holes 31, eight glass-ceramic block positioning pins 32, eight glass-ceramic block screw holes 33, eight titanium pillar fixing holes 35, and eight titanium pillar screw holes 37.

[0050] In specific implementation, the size of the fixing hole 31 of the glass-ceramic block can be set to Φ5.9×13mm, which perfectly matches the tail shank 13 of the glass-ceramic block 1 (diameter of 5.9mm, length not exceeding 13mm). Figure 10 As shown, eight glass-ceramic block fixing holes 31 can simultaneously install eight glass-ceramic blocks 1. The eight glass-ceramic block cutting posts 11 are placed in parallel without interfering with each other, greatly improving processing efficiency. This design not only supports the parallel processing of glass-ceramic blocks 1 of various specifications with a cutting post length ≤20mm, and covers all denture forms such as single crowns, bridges, and veneers, but also increases work efficiency, expands the processing types of glass-ceramic blocks 1, and saves costs for users.

[0051] The size of the glass-ceramic block positioning pin 32 can be set to Φ1.9×2mm, which cooperates with the positioning groove 12 of the glass-ceramic block 1 to ensure that the position of the glass-ceramic block 1 is accurately fixed, and facilitates subsequent pre-tightening by pressing the screw fixing groove 14 of the glass-ceramic block fixing screw. The operation is more convenient and simple, and further improves the processing accuracy and efficiency.

[0052] The titanium pillar fixing hole 35 can be set as a Φ7.95×7mm irregular hole, perfectly matching the fixing post 22 of the titanium pillar 2. The fixing post screw hole 23 can be set as a Φ5.2mm circular through hole. After the titanium pillar 3 is inserted into the titanium pillar fixing hole 35, the titanium pillar screw hole 37 and the fixing post threaded hole 23 are linked by the titanium pillar fixing screw to achieve anti-torque locking, ensuring the stable installation of the titanium pillar 2. Figure 11 As shown, eight titanium pillar fixing holes 35 are added next to the eight glass ceramic fixing holes 31, which supports the simultaneous processing of eight titanium pillars 2, further expanding the processing application range.

[0053] It should be noted that due to workspace limitations, such as Figure 11 As shown, all the titanium pillar fixing holes 35 can be used simultaneously, but all the glass-ceramic block fixing holes 31 cannot be used simultaneously. Specifically, as... Figure 10 As shown, the eight glass-ceramic block fixing holes 31 on the top and bottom surfaces of the T-shaped clamp 3 can be used simultaneously, allowing eight glass-ceramic blocks 1 to be installed and processed concurrently. Figure 12 As shown, the two glass-ceramic block fixing holes 31 on the inner side of the vertical branch of the T-shaped fixture 3 can be used simultaneously to install two glass-ceramic blocks 1 for processing. However, due to system software and processing control issues, the eight glass-ceramic block fixing holes 31 on the top and bottom surfaces of the T-shaped fixture 3 cannot be used simultaneously with the two glass-ceramic block fixing holes 31 on the inner side of the vertical branch of the T-shaped fixture 3. Furthermore, due to the different materials of the glass-ceramic blocks 1 and the titanium pillars 2, they cannot be processed simultaneously; therefore, the titanium pillar fixing holes 35 and all the glass-ceramic block fixing holes 31 cannot be used simultaneously.

[0054] As can be seen from the above technical solution, this utility model, through the symmetrical design of the T-shaped clamp body 3 and the multi-functional hole sequence layout, achieves efficient and precise fixing and processing of the glass-ceramic block 1 and the titanium pillar 2, and also makes clamping and disassembly more convenient, reducing the difficulty of operation and maintenance costs. Furthermore, the simultaneous processing of the eight-station glass-ceramic block 1 or the eight-station titanium pillar allows for the completion of eight processing surfaces in a single clamping operation. This not only greatly improves efficiency compared to traditional clamps but also expands the types of processing, providing users with higher economic value and operational convenience, and has broad application prospects.

[0055] like Figure 4 , Figure 5 As shown, in other embodiments, the vertical branch of the T-shaped clamp 3 is further optimized in design, specifically as follows: Two glass-ceramic block fixing holes 31 are symmetrically formed on the inner side of the vertical branch of the T-shaped clamp 3 along the central axis of the T-shaped clamp 3. A corresponding glass-ceramic block positioning pin 32 is installed next to each glass-ceramic block fixing hole 31 for precise positioning of the glass-ceramic block 1. Two glass-ceramic block screw holes 33 are symmetrically formed on the front side of the vertical branch of the T-shaped clamp 3 along the central axis of the T-shaped clamp 3. Each glass-ceramic block screw hole 33 communicates with the corresponding glass-ceramic block fixing hole 31, forming a through-type locking channel to ensure the stable installation of the glass-ceramic block 1.

[0056] It should be noted that the glass-ceramic block fixing hole 31 can be matched with the tail shank 13 of the glass-ceramic block 1, ensuring that the tail shank 13 can be firmly inserted and achieving precise positioning of the glass-ceramic block 1. The glass-ceramic block positioning pin 32 can be matched with the positioning groove 12 of the glass-ceramic block 1, achieving initial positioning of the glass-ceramic block 1. The glass-ceramic block screw hole 33 can be matched with the glass-ceramic block fixing screw, ensuring that the glass-ceramic block fixing screw can be firmly inserted. The junction of the glass-ceramic block screw hole 33 and the glass-ceramic block fixing hole 31 can be matched with the position of the screw fixing groove 14 of the glass-ceramic block 1, and is pressed and locked by the position of the screw fixing groove 14, eliminating displacement caused by processing vibration and improving processing stability.

[0057] In specific implementation, such as Figure 12 As shown, two glass-ceramic blocks 1 can be machined simultaneously on the inner side of the vertical branch of the T-shaped fixture 3. This design, by optimizing the layout of the fixing holes and screw holes in the vertical branch of the T-shaped fixture 3, achieves efficient and precise machining of the glass-ceramic blocks 1 in the vertical direction. It not only breaks through the limitations of traditional single-plane machining of fixtures and expands the three-dimensional machining space, supporting the machining of glass-ceramic blocks 1 in the vertical direction, but is also suitable for the parallel production of glass-ceramic blocks 1 with long glass-ceramic cutting columns 11, thus expanding the range of applicable machining.

[0058] like Figure 4 , Figure 5 As shown, in other embodiments, to facilitate distinguishing the processing sequence, the front of the T-shaped clamp 3 is further optimized as follows: Several glass-ceramic block identification numbers 34, corresponding to the screw holes 33 of the glass-ceramic blocks, are provided on the front of the T-shaped clamp 3 to identify the processing sequence of each glass-ceramic block 1. Several titanium pillar identification numbers 36, corresponding to the titanium pillar fixing holes 35, are also provided on the front of the T-shaped clamp 3 to identify the processing sequence of each titanium pillar 2.

[0059] In practical implementation, the marking system of the T-shaped fixture 3 is designed as follows: On the front of the horizontal branch of the T-shaped fixture 3, the glass ceramic block identification numbers 34 corresponding to the eight glass ceramic block screw holes 33 can be set to G1 to G8, and the titanium pillar identification numbers 36 corresponding to the eight titanium pillar fixing holes 35 can be set to P1 to P8. This design facilitates users to quickly locate and install the glass ceramic blocks 1 and titanium pillars 2 with the required markings according to processing requirements. Furthermore, on the front of the vertical branch of the T-shaped fixture 3, the glass ceramic block identification numbers 34 corresponding to the two glass ceramic block screw holes 33 can be set to G9 and G10, further expanding the marking range of the processing sequence.

[0060] As can be seen from the above, by setting the glass-ceramic block identification number 34 and the titanium pillar identification number 36, users can intuitively identify the processing sequence of each workpiece, avoiding confusion and misoperation. Furthermore, the introduction of the identification system makes workpiece installation and disassembly more convenient; users can quickly locate the required processing position based on the identification, significantly improving operational efficiency.

[0061] Furthermore, the dental engraving and milling machine adapted to this utility model is the YRC-6S engraving and milling machine manufactured by Shenzhen Yucheng Intelligent Equipment Co., Ltd. For example... Figure 13 As shown, the YRC-6S engraving and milling machine's worktable 5 is used to fix the workpiece, and an N-shaped rotating arm 51 is mounted on the worktable 5. The rotating arm 51 includes a left vertical branch, a horizontal branch, and a right vertical branch. The horizontal branch is used to connect to the wall plate of the worktable 5; a support shaft 52 is mounted on the inner side of the left vertical branch, and the support shaft 52 is used to be inserted into a bearing seat 521 with a bearing.

[0062] like Figure 14 As shown, the right vertical branch includes a housing, and a positioning seat 53, a reducer 531, a machine tool motor 532, and two synchronous pulleys installed inside the housing. The input shaft of the reducer 531 is fixedly connected to one synchronous pulley with screws, and this synchronous pulley is fixedly connected to the inner wall of the housing with screws, thus indirectly fixing the reducer 531 to the housing. The output shaft of the machine tool motor 532 is fixedly connected to the other synchronous pulley, and the two synchronous pulleys are connected by a belt, thus achieving belt drive between the reducer 531 and the machine tool motor 532. The output shaft of the reducer 531 is fixedly connected to the positioning seat 53, and the positioning seat 53 is provided with a central positioning pin and screw mounting holes, facilitating the connection of the entire fixture to the output shaft of the machine tool motor 532 through the positioning seat 53. The above describes the structure of a CNC engraving and milling machine in the prior art.

[0063] In other embodiments, since the structural design of the clamping body needs to ensure that the workpiece can be precisely fixed in the predetermined position of the rotating arm 51 to ensure the accuracy of processing, the mounting base 4 and the T-shaped clamping body 3 are further designed as follows.

[0064] like Figure 8 , Figure 9 As shown, the mounting base 4 has a centrally located positioning pin positioning hole 42 and several screw clearance holes 41 distributed around the positioning pin positioning hole 42. The positioning pin positioning hole 42 is used to insert the central positioning pin of the positioning base 53, thereby achieving precise positioning of the entire fixture on the positioning base 53; the screw clearance holes 41 are used to connect the positioning base 53 with screws, thereby achieving installation of the entire fixture on the positioning base 53.

[0065] like Figure 8 As shown, the T-shaped clamp body has a centrally located support shaft mounting hole 43 on the end face of its three horizontal branches, and a plurality of bearing seat mounting holes 44 distributed around the support shaft mounting hole 43. The support shaft mounting hole 43 is used to insert the support shaft 52. The bearing seat mounting holes 44 are used to install bearing seats 521 with bearings.

[0066] In practice, on the one hand, the center positioning pin of the positioning seat 53 is inserted into the positioning pin positioning hole 42 of the mounting seat 4, and the mounting seat 4 is fixed to the positioning seat 53 by screws through the screw clearance hole 41 and the screw mounting hole, thereby connecting the entire fixture to the output shaft of the machine tool motor 532. On the other hand, the support shaft 52 is inserted into the support shaft mounting hole 43 of the T-shaped fixture body 3, and the bearing seat 521 is fixed to the end face of the transverse branch of the T-shaped fixture body 3 through the bearing seat mounting hole 44, thereby connecting the entire fixture to the support shaft 52, enhancing rigidity and stability. In this way, through the fixed clamping of both ends of the T-shaped fixture body 3 by the positioning seat 53 and the support shaft 52, the entire fixture is firmly fixed on the machine tool worktable 5, ensuring stability and accuracy.

[0067] When the CNC machine tool of the dental prosthesis carving and milling machine is working, the machine tool motor 532 starts, and drives the mounting base 4 to start rotating through the reducer 531. This causes the bearing in the bearing seat 521 on the T-shaped fixture body 3 to rotate synchronously around the support shaft 52, so that the entire fixture rotates according to the control requirements, and the processing operation of the workpiece can begin.

[0068] As can be seen from the above, due to the symmetrical design adopted by this utility model, such as Figure 5 As shown, the top and bottom surfaces (i.e. commonly used machining surfaces) of the T-shaped fixture 3 are close to the axis of the output shaft of the machine tool motor 532, thereby reducing the load on the machine tool motor 532, improving the machining accuracy, and extending the service life of the machine tool motor 532.

[0069] It should be noted that, in order to adapt to the structure of the YRC-6S milling machine's worktable, regardless of the type of fixture used, a support shaft mounting hole 43 and a bearing seat mounting hole 44 must be made at one end of the fixture, and a screw clearance hole 41 and a locating pin positioning hole 42 must be made on the mounting base 4. Furthermore, the steps for installing the fixture onto the machine tool worktable 5 are the same.

[0070] like Figure 10 As shown, the specific usage process of this utility model is as follows:

[0071] First, fix the mounting base 4 of this fixture onto the positioning seat 53 of the machine tool worktable 5. Then, connect the transverse branch end face of the T-shaped fixture body 3 to the support shaft 52, and fix the bearing seat 521 with bearings onto the transverse branch end face of the T-shaped fixture body 3, as shown. Figure 13 , Figure 14 As shown.

[0072] Secondly, this utility model can process multiple glass-ceramic blocks 1 or multiple titanium pillars 2 at the same time, but it cannot process glass-ceramic blocks 1 and titanium pillars 2 at the same time. The installation process is as follows.

[0073] When machining the glass-ceramic block 1, the tail shank 13 of the glass-ceramic block 1 is inserted into the fixing hole 31 of the glass-ceramic block through the guide of the positioning pin 32, and pushed until the cutting column 11 contacts the top surface, bottom surface, or left side surface (i.e., the commonly machined surface) of the T-shaped fixture 3. Then, the fixing screws of the glass-ceramic block are tightened into the screw holes 33 of the glass-ceramic block. Figure 10 , Figure 12 As shown.

[0074] When machining the titanium pillar 2, insert the titanium pillar 2 into the titanium pillar fixing hole 35 and push it until the titanium pillar cutting post 21 contacts the top or bottom surface (i.e., the commonly machined surface) of the T-shaped fixture 3. Then, tighten the titanium pillar fixing screw into the titanium pillar screw hole 23. Figure 11 As shown.

[0075] In summary, this utility model can be used not only to process multiple glass-ceramic blocks 1, but also to process multiple titanium pillars 2. It has a clever design, richer functions, is suitable for processing various types of parts, is easier to operate, and the product is more user-friendly.

[0076] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A T-shaped glass-ceramic block and titanium column clamping fixture specifically for a dental prosthesis milling machine, characterized in that, It includes a horizontally placed T-shaped clamp body and a mounting base connecting the vertical branch end face of the T-shaped clamp body; The top and bottom surfaces of the T-shaped clamp body's horizontal branches are symmetrically provided with several sets of top hole sequences and bottom hole sequences; Each set of top holes is arranged in the order of glass-ceramic block fixing holes, titanium pillar fixing holes, and titanium pillar screw holes; each set of bottom holes is arranged in the order of glass-ceramic block fixing holes, titanium pillar screw holes, and titanium pillar fixing holes; a corresponding glass-ceramic block positioning pin is installed next to each glass-ceramic block fixing hole; each titanium pillar screw hole is interconnected with the symmetrical titanium pillar fixing holes. The T-shaped clamp has two rows of glass-ceramic block screw holes symmetrically opened on the front of the horizontal branch. The screw holes of the upper row of glass-ceramic blocks are connected to the corresponding glass-ceramic block fixing holes in the top hole sequence; the screw holes of the lower row of glass-ceramic blocks are connected to the corresponding glass-ceramic block fixing holes in the bottom hole sequence.

2. The T-shaped glass-ceramic block and titanium column clamp for dental prosthesis milling machines according to claim 1, characterized in that, The T-shaped clamp has two symmetrical upper and lower glass ceramic block fixing holes on the inner side of the vertical branch; a corresponding glass ceramic block positioning pin is installed next to each glass ceramic block fixing hole. The T-shaped clamp has two symmetrical glass-ceramic block screw holes on the front of its vertical branch; each glass-ceramic block screw hole is connected to the corresponding glass-ceramic block fixing hole.

3. The T-shaped glass-ceramic block and titanium column clamp for a dental prosthesis milling machine according to claim 1 or 2, characterized in that, The fixing hole of the glass-ceramic block matches the tail shank of the glass-ceramic block. The positioning pin of the glass-ceramic block matches the positioning groove of the glass-ceramic block; The screw holes of the glass-ceramic block are matched with the fixing screws of the glass-ceramic block; The junction of the screw holes and fixing holes of the glass-ceramic block matches the position of the screw fixing groove of the glass-ceramic block.

4. The T-shaped glass-ceramic block and titanium column clamp for a dental prosthesis milling machine according to claim 1 or 2, characterized in that, The fixing holes of the titanium column are matched with the fixing columns of the titanium column; The screw holes of the titanium pillar are matched with the screw holes of the fixing pillar of the titanium pillar.

5. The T-shaped glass-ceramic block and titanium column clamp for a dental prosthesis milling machine according to claim 1 or 2, characterized in that, The front of the T-shaped clamp is provided with several glass ceramic block identification numbers corresponding to the screw holes of the glass ceramic block, and several titanium column identification numbers corresponding to the fixing holes of the titanium column.

6. The T-shaped glass-ceramic block and titanium column clamp for a dental prosthesis milling machine according to claim 1 or 2, characterized in that, The mounting base end face is provided with a centrally located positioning pin positioning hole and a number of screw clearance holes distributed around the positioning pin positioning hole. The T-shaped clamp has a centrally located support shaft mounting hole on the end face of the horizontal branch, and several bearing seat mounting holes distributed around the support shaft mounting hole.

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