Cutter switching mechanism for cutting baked porcelain false tooth

Abstract

The utility model relates to the technical field of false tooth cutting machines, in particular to a cutter switching mechanism for cutting baked porcelain false teeth, which comprises a machine shell and a main shaft, a working cavity is arranged in the machine shell, a position switching device is arranged in the working cavity, the main shaft is arranged on the position switching device, and the main shaft is arranged on the machine shell. The position switching device comprises a first power source used for pushing the main shaft to move vertically and a second power source used for pushing the main shaft to move horizontally. A rotary tool frame is installed in the working cavity and composed of a second motor and a tool rest, and a plurality of tools are installed on the periphery of the tool rest. A tool quick connector is arranged in the main shaft; the position switching device, the rotary cutter frame and the cutter quick connector in the main shaft are matched with one another, so that automatic replacement of the cutter can be realized, and the process of manually replacing the cutter is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of denture cutting machines, in particular to a tool switching mechanism for cutting porcelain dentures. Background Art

[0002] Dentures are artificial teeth that are replaced after teeth fall out or are extracted for the purpose of aesthetics and restoring chewing functions. They can provide the most basic guarantee for our lives. In order to improve the quality and efficiency of denture production, foreign countries mostly use oral CAD / CAM technology, and denture CNC processing equipment is a key component of this technology. The commonly used processing equipment is the denture cutting machine, which uses a tool to cut and polish the surface of porcelain cakes or titanium discs.

[0003] When processing and cutting porcelain cakes or titanium discs, existing denture cutting machines need to use a variety of different tools to cut different shapes, grind surfaces, etc. However, the existing denture cutting machines still require manual tool replacement and cannot achieve automatic tool switching. In view of this, we propose a tool switching mechanism for cutting porcelain dentures. Utility Model Content

[0004] In order to make up for the deficiency that the above existing denture cutting machines still need manual replacement of cutters, the utility model provides a cutter switching mechanism for cutting porcelain dentures.

[0005] The technical solution of the utility model is:

[0006] A tool switching mechanism for cutting porcelain dentures, comprising a housing and a spindle, wherein a working chamber is provided in the housing, a position switching device is provided in the working chamber, the spindle is mounted on the position switching device, and the position switching device comprises a power source 1 for driving the spindle to move vertically and a power source 2 for driving the spindle to move horizontally;

[0007] A rotating tool holder is installed in the working chamber, the rotating tool holder is composed of a second motor and a tool holder, and a plurality of tools are installed on the periphery of the tool holder;

[0008] The spindle includes a tool quick connector.

[0009] Preferably, the tool is composed of a cylinder and a conical block from top to bottom, the cylinder is connected to the conical block, an annular groove is provided on the periphery of the cylinder, and a milling cutter is installed below the conical block.

[0010] Preferably, the power source 1 is composed of an electric push cylinder 1, and the power source 2 is composed of a motor 1, a guide rod, an internal threaded cylinder and a threaded rod.

[0011] Preferably, the guide rod and the threaded rod are parallel to each other, and the two ends of the guide rod and the threaded rod are respectively installed on the inner wall of the working chamber, the internal threaded barrel is installed on the upper end of the electric push cylinder 1, the internal threaded barrel is installed on the periphery of the threaded rod, the guide rod is installed on one side of the upper end of the electric push cylinder 1, the motor 1 is installed on the housing, and the output end of the motor 1 is connected to the threaded rod through a coupling.

[0012] Preferably, the second motor is installed on the inner bottom surface of the working chamber, the tool holder is composed of a rotating shaft and a circular hub, the output end of the second motor is connected to the rotating shaft through a coupling, the circular hub is installed on the periphery of the rotating shaft, a plurality of upper circular rings are provided on the periphery of the circular hub, a lower circular ring is provided directly below the upper circular ring, and the lower circular ring is installed on the circular hub.

[0013] Preferably, the main shaft further includes an upper cylinder, the upper cylinder is installed below the electric push cylinder 1, a motor is installed in the upper cylinder, and the tool quick connector is installed in the upper cylinder.

[0014] Preferably, the tool quick connector is composed of a lower special-shaped cylinder, a conical frame, a plurality of V-shaped folding rods and an electric push cylinder. The upper end of the lower special-shaped cylinder is installed on the lower end of the upper cylinder, and a circular hole is provided below the lower special-shaped cylinder.

[0015] Preferably, the upper end of the electric push cylinder 2 is installed in the lower special-shaped cylinder, the upper end of the conical frame is installed in the lower end of the electric push cylinder 2, a plurality of V-shaped folding rods are installed in the lower special-shaped cylinder, the lower special-shaped cylinder is installed below the conical frame, and a rubber block is installed on the V-shaped folding rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model can realize automatic replacement of the tool by the cooperation of the position switching device, the rotating tool holder and the tool quick connector in the main shaft, thus saving the process of manpower in replacing the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the position switching device of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the rotary tool holder of the utility model;

[0021] Figure 4 This is a schematic diagram of the main shaft of the utility model;

[0022] Figure 5 This is a schematic diagram of the tool structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the connection structure between the spindle and the tool of the utility model.

[0024] In the figure:

[0025] 1. Casing;

[0026] 2. Working chamber;

[0027] 3. Position switching device; 31. Motor 1; 32. Electric push cylinder 1; 33. Guide rod; 34. Internal threaded cylinder; 35. Threaded rod;

[0028] 4. Rotating tool holder; 41. Motor 2; 42. Rotating shaft; 43. Circular hub; 44. Upper circular ring; 45. Lower circular ring;

[0029] 5. Spindle; 51. Upper cylinder; 52. Motor; 53. Lower special-shaped cylinder; 54. Cone frame; 55. V-shaped folding rod; 56. Rubber block; 57. Round hole; 58. Electric push cylinder 2;

[0030] 6. tool; 61. cylinder; 62. annular groove; 63. conical block; 64. milling cutter. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] See also Figure 1-6 The utility model describes the above technical solution in detail through the following embodiments:

[0034] A tool switching mechanism for cutting porcelain dentures comprises a casing 1, a working chamber 2 is arranged in the casing 1, a rotating tool holder 4 is installed on the bottom surface of the working chamber 2, the rotating tool holder 4 is composed of a motor 41 and a tool holder, a plurality of tools 6 are installed on the periphery of the tool holder, the motor 41 is fixedly installed on the inner bottom surface of the working chamber 2, the tool holder is composed of a rotating shaft 42 and a hub 43, the output end of the motor 41 is fixedly connected to the rotating shaft 42 through a coupling, the hub 43 is fixedly installed on the periphery of the rotating shaft 42, a plurality of upper circular rings 44 are fixedly connected to the periphery of the hub 43, a lower circular ring 45 is arranged directly below the upper circular ring 44, that is, the upper circular ring 44 and the lower circular ring 45 are on the same vertical straight line, the lower circular ring 45 is fixedly installed on the hub 43, and the inner diameter of the upper circular ring 44 is larger than the inner diameter of the lower circular ring 45.

[0035] In this embodiment, the tool 6 is composed of a cylinder 61 and a conical block 63 from top to bottom. The cylinder 61 and the conical block 63 are fixedly connected. A circular groove 62 is provided on the periphery of the cylinder 61. Anti-slip grooves are provided on the inner wall of the circular groove 62. Milling cutters 64 with different functions are fixedly installed below several conical blocks 63. The outer diameter of the conical block 63 gradually decreases from top to bottom. The conical block 63 is installed in the upper ring 44 and the lower ring 45, and the conical block 63 is in contact with the inner circle of the upper ring 44 and the inner circle of the lower ring 45 respectively.

[0036] In this embodiment, a position switching device 3 is provided in the working chamber 2, and the position switching device 3 includes a power source 1 for driving the main shaft 5 to move vertically and a power source 2 for driving the main shaft 5 to move horizontally. The power source 1 is composed of an electric push cylinder 32, and the power source 2 is composed of a motor 31, a guide rod 33, an internal threaded tube 34 and a threaded rod 35. The guide rod 33 and the threaded rod 35 are parallel to each other and installed horizontally, and the two ends of the guide rod 33 and the threaded rod 35 are respectively installed on the inner wall of the working chamber 2, the guide rod 33 is fixedly connected to the casing 1, and the casing 1 and the threaded rod 35 are rotatably connected. The internal threaded tube 34 is fixedly installed on the upper end of the electric push cylinder 32, and the internal threaded tube 34 is threadedly installed on the periphery of the threaded rod 35. The guide rod 33 is horizontally slidably installed on one side of the upper end of the electric push cylinder 32, that is, the electric push cylinder 32 can move horizontally along the guide rod 33, and the motor 31 is fixedly installed on the casing 1, and the output end of the motor 31 is fixedly connected to the threaded rod 35 through a coupling.

[0037] In this embodiment, a spindle 5 is installed at the protruding end of the lower end of the electric push cylinder 32, and the spindle 5 includes a tool quick connector and an upper cylinder 51. The upper cylinder 51 is fixedly installed at the lower protruding end of the electric push cylinder 32, and a motor 52 is fixedly installed in the upper cylinder 51. The tool quick connector is installed in the upper cylinder 51. The tool quick connector is composed of a lower special-shaped cylinder 53, a conical frame 54, a plurality of V-shaped folding rods 55 and an electric push cylinder 58. The upper end of the lower special-shaped cylinder 53 is rotatably installed on the lower end of the upper cylinder 51, and a circular hole 57 is provided at the bottom of the lower special-shaped cylinder 53. The inner diameter of the circular hole 57 is the same as the outer diameter of the cylinder 61, that is, the circular hole 57 is used to guide the movement of the cylinder 61.

[0038] In this embodiment, the upper end of the electric push cylinder 58 is fixedly mounted on the inner top surface of the lower special-shaped cylinder 53, the upper end of the conical frame 54 is fixedly mounted on the lower protruding end of the electric push cylinder 58, the lower ends of several V-shaped folding rods 55 are fixedly mounted in the lower special-shaped cylinder 53, the lower special-shaped cylinder 53 is mounted below the conical frame 54, and a rubber block 56 is installed on the V-shaped folding rod 55. The V-shaped folding rod 55 is formed by two identical rectangular rods connected in a V-shaped rotation. The middle part of the V-shaped folding rod 55 protrudes and folds toward the central axis of the lower special-shaped cylinder 53. The two ends of the upper ends of the V-shaped folding rod 55 are respectively in contact with the inner wall of the lower special-shaped cylinder 53, and the lower end of the rectangular rod in the lower middle of the V-shaped folding rod 55 is fixedly connected to the lower special-shaped cylinder 53, the upper end of the rectangular rod in the upper middle of the V-shaped folding rod 55 is slidably connected to the inner wall of the lower special-shaped cylinder 53, and the upper end of the rectangular rod in the upper middle of the V-shaped folding rod 55 is fixedly connected to the lower special-shaped cylinder 53.

[0039] It should be added that a battery is fixedly installed in the working chamber 2, and the battery is connected to the motor 1 31, the electric push cylinder 1 32, the motor 2 41, the motor 52 and the electric push cylinder 2 58 through wires.

[0040] The tooth cutting machine is used to cut and grind porcelain cakes or titanium disks, and when the tool is replaced, the output end of the motor 31 in the position switching device 3 needs to drive the threaded rod 35 to rotate positively in the internal threaded cylinder 34, so as to drive the electric push cylinder 32 to move leftward along the guide rod 33 to be directly above an upper ring 44 in the rotating tool holder 4, that is, to drive the spindle 5 below the electric push cylinder 32 to be located directly above the upper ring 44 where the tool 6 is not placed, and to extend downward through the protruding end of the electric push cylinder 32 to approach and contact the upper ring 44, and then to retract upward through the protruding end of the electric push cylinder 2 58 in the lower special-shaped cylinder 53, driving the conical frame 54 and a plurality of V-shaped folding rods 55 to expand upward, so that the plurality of V-shaped folding rods 55 are away from the cylinder 61 in the tool 6. Under the self-gravity of the tool 6, the tool 6 will be placed in the upper ring 44, and then through the electric push cylinder 1 The extended end of 32 retracts upward and away from the contact upper ring 44, and then the output end of the motor 2 41 in the rotating tool holder 4 drives the rotating shaft 42, the hub 43 and the several upper rings 44 on the periphery to rotate, exchange positions, and rotate the tool 6 placed in the required upper ring 44 to the bottom of the spindle 5, and then the extended end of the electric push cylinder 1 32 extends downward again to contact the upper ring 44, so that the cylinder 61 in the upper ring 44 passes through the circular hole 57, and then continues to extend downward through the extended end of the electric push cylinder 2 58 in the lower special-shaped cylinder 53, pushing the conical frame 54 to press several V-shaped folding rods 55 to fold inward, so that the circular groove 62 on the periphery of the cylinder 61 in the tool 6 can be stably squeezed and clamped, and finally the motor 1 31 and the electric push cylinder 1 32 in the position switching device 3 drive the spindle 5 to reset to complete the automatic replacement of the tool 6, saving the process of manpower to replace the tool 6.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A tool switching mechanism for cutting porcelain dentures, comprising a housing (1) and a spindle (5), wherein a working chamber (2) is provided in the housing (1), and characterized in that: A position switching device (3) is provided in the working chamber (2), the main shaft (5) is mounted on the position switching device (3), and the position switching device (3) includes a power source 1 for driving the main shaft (5) to move vertically and a power source 2 for driving the main shaft (5) to move horizontally; A rotating tool holder (4) is installed in the working chamber (2), the rotating tool holder (4) is composed of a second motor (41) and a tool holder, and a plurality of tools (6) are installed on the periphery of the tool holder; The spindle (5) comprises a tool quick connector.

2. The tool switching mechanism for cutting porcelain dentures according to claim 1, characterized in that: The tool (6) is composed of a cylinder (61) and a conical block (63) from top to bottom. The cylinder (61) and the conical block (63) are connected. A circular groove (62) is provided on the periphery of the cylinder (61). A milling cutter (64) is installed below the conical block (63).

3. The tool switching mechanism for cutting porcelain dentures according to claim 1, characterized in that: The power source 1 is composed of an electric push cylinder 1 (32), and the power source 2 is composed of a motor 1 (31), a guide rod (33), an internal threaded cylinder (34) and a threaded rod (35).

4. The tool switching mechanism for cutting porcelain dentures according to claim 3, characterized in that: The guide rod (33) and the threaded rod (35) are parallel to each other, and the two ends of the guide rod (33) and the threaded rod (35) are respectively mounted on the inner wall of the working chamber (2), the internal threaded tube (34) is mounted on the upper end of the electric push cylinder (32), the internal threaded tube (34) is mounted on the periphery of the threaded rod (35), the guide rod (33) is mounted on one side of the upper end of the electric push cylinder (32), the motor (31) is mounted on the housing (1), and the output end of the motor (31) is connected to the threaded rod (35) through a coupling.

5. The tool switching mechanism for cutting porcelain dentures according to claim 1, characterized in that: The second motor (41) is installed on the inner bottom surface of the working chamber (2); the tool holder is composed of a rotating shaft (42) and a circular hub (43); the output end of the second motor (41) is connected to the rotating shaft (42) through a coupling; the circular hub (43) is installed on the periphery of the rotating shaft (42); a plurality of upper circular rings (44) are provided on the periphery of the circular hub (43); a lower circular ring (45) is provided directly below the upper circular ring (44); and the lower circular ring (45) is installed on the circular hub (43).

6. The tool switching mechanism for cutting porcelain dentures according to claim 3, characterized in that: The main shaft (5) also includes an upper cylinder (51), which is installed below the electric push cylinder (32). A motor (52) is installed in the upper cylinder (51), and the tool quick connector is installed in the upper cylinder (51).

7. The tool switching mechanism for cutting porcelain dentures according to claim 6, characterized in that: The tool quick connector is composed of a lower special-shaped cylinder (53), a conical frame (54), a plurality of V-shaped folding rods (55) and two electric push cylinders (58). The upper end of the lower special-shaped cylinder (53) is installed on the lower end of the upper cylinder (51), and a circular hole (57) is provided below the lower special-shaped cylinder (53).

8. The tool switching mechanism for cutting porcelain dentures according to claim 7, characterized in that: The upper end of the second electric push cylinder (58) is installed in the lower special-shaped cylinder (53), the upper end of the conical frame (54) is installed on the lower end of the second electric push cylinder (58), a plurality of V-shaped folding rods (55) are installed in the lower special-shaped cylinder (53), the lower special-shaped cylinder (53) is installed below the conical frame (54), and a rubber block (56) is installed on the V-shaped folding rod (55).

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