Working rotary table structure of five-axis false tooth carving machine

Abstract

The utility model discloses a five-axis false tooth carving machine work rotary table structure which comprises a base body and a three-axis transferring mechanism arranged on the base body, a tool bit assembly is arranged on the three-axis transferring mechanism, and a first installation frame and a second installation frame which are oppositely distributed are arranged on the lower surface of the base body. And a rotatable material clamping device is arranged between the mounting frame I and the mounting frame II. According to the utility model, production and processing can be better carried out under the condition of stable operation, and the requirement of finish machining of articles can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of five-axis linkage numerical control engraving, in particular to a working turntable structure of a five-axis denture engraving machine. Background Art

[0002] Denture engraving machines are known to be machines for processing dentures (usually suitable for processing dentures made of zirconia as raw material) and play an important role in the field of denture processing. However, for existing denture engraving machines, such as the new denture engraving machine and denture processing method disclosed in Chinese invention patent application publication number CN111358587A, the processing frame is mounted on a rotary drive mechanism. Under the drive of the rotary drive mechanism, the processing frame flips back and forth between a first posture and a second posture, the loading tray is placed in a first preset position, and the processing frame is placed in a second preset position. The existing rotary drive mechanism is fixed at one end, which may cause operation shaking during use, which is not conducive to the production and processing of the product and cannot meet the requirements of fine processing. Utility Model Content

[0003] (1) Technical issues that need to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a five-axis denture engraving machine working turntable structure, which can achieve better production and processing while running smoothly, and is more conducive to meeting the requirements of fine-processing items.

[0005] (2) Technical solutions that need to be adopted

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A five-axis denture engraving machine working turntable structure includes a base body and a three-axis transfer mechanism arranged on the base body, a cutter head assembly is arranged on the three-axis transfer mechanism, and a mounting frame 1 and a mounting frame 2 distributed opposite to each other are arranged on the lower surface of the base body, and a rotatable material clamping device is arranged between the mounting frame 1 and the mounting frame 2.

[0008] Preferably, the material clamping device includes a U-shaped workbench arranged between the mounting frame 1 and the mounting frame 2, bearings are respectively provided between the U-shaped workbench and the mounting frame 1 and the mounting frame 2, and a clamp is provided on the U-shaped workbench, and the clamp is located below the cutter head assembly. A driving source for driving the U-shaped workbench to rotate is provided at one end of the U-shaped workbench, and the other end of the U-shaped workbench is a hollow structure.

[0009] Preferably, the driving source is a harmonic motor.

[0010] Preferably, the tool head assembly includes a fixing frame arranged on the three-axis transfer mechanism, and a processing knife is arranged on the fixing frame.

[0011] Preferably, a square hole is opened on the seat body, and the square hole allows the cutter head assembly to move within this range, and the clamping device is located correspondingly below the square hole.

[0012] (3) Technical effects to be achieved

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] First, the lower surface of the seat body of the utility model is provided with a mounting frame 1 and a mounting frame 2 which are distributed opposite to each other, and a rotatable material clamping device is provided between the mounting frame 1 and the mounting frame 2, which can achieve better production and processing under stable operation and is more conducive to meeting the requirements of fine-processing items.

[0015] Secondly, the material clamping device of the present invention includes a U-shaped workbench arranged between mounting frame one and mounting frame two, bearings are respectively provided between the U-shaped workbench and mounting frame one and mounting frame two, and a clamp is provided on the U-shaped workbench, and the clamp is located below the cutter head assembly. A driving source for driving the U-shaped workbench to rotate is provided at one end of the U-shaped workbench, and the other end of the U-shaped workbench is a hollow structure. Since the U-shaped workbench in this material clamping device has fixed supports at both ends, the stability of the U-shaped workbench is greatly improved, and it is more conducive to the clamp on the U-shaped workbench to clamp the material steadily, thereby improving the accuracy of material processing. Secondly, since the other end of the U-shaped workbench is a hollow structure, this is conducive to realizing internal wiring and avoiding the disorderly situation of the wiring being exposed outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main viewing direction of the present utility model.

[0017] Figure 2 This is a schematic diagram of the utility model when viewed from the left.

[0018] Figure 3 This is an exploded schematic diagram of the seat body and material clamping device of the utility model.

[0019] Figure 4 It is an overall schematic diagram of the utility model.

[0020] Figure 5 It is a three-dimensional schematic diagram of the utility model.

[0021] Figure 6 It is a three-dimensional schematic diagram of the utility model when viewed from above.

[0022] In the figure: 1, base; 2, three-axis transfer mechanism; 3, tool head assembly; 4, material clamping device; 11, mounting frame 1; 12, mounting frame 2; 13, square hole; 31, fixing frame; 32, processing tool; 41, U-shaped workbench; 42, fixture; 43, drive source; 44, hollow structure. DETAILED DESCRIPTION

[0023] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0024] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0025] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0027] Example 1: See Figures 1 to 6 A five-axis denture engraving machine working turntable structure includes a base body 1 and a three-axis transfer mechanism 2 arranged on the base body 1. A cutter head assembly 3 is arranged on the three-axis transfer mechanism 2. The material is processed by the cutter head assembly 3. The cutter head assembly 3 can realize three-axis movement through the three-axis transfer mechanism 2. The lower surface of the base body 1 is provided with a mounting frame 11 and a mounting frame 2 12 that are distributed opposite to each other. A rotatable material clamping device 4 is provided between the mounting frame 11 and the mounting frame 2 12. This can achieve better production and processing under stable operation, which is more conducive to meeting the requirements of fine-processing items.

[0028] Example 2: It can be explained based on Example 1, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown in the figure, the material clamping device 4 includes a U-shaped workbench 41 arranged between the mounting frame 1 11 and the mounting frame 2 12. The U-shaped workbench 41 is respectively provided with bearings between the mounting frame 1 11 and the mounting frame 2 12, which is conducive to the rotation of the U-shaped workbench 41, and a clamp 42 is provided on the U-shaped workbench 41. The clamp 42 is located below the cutter head assembly 3. The clamp 42 is used to clamp the material to be processed, which is conducive to the processing of the material on the clamp 42 by the cutter head assembly 3. A driving source 43 for driving the U-shaped workbench 41 to rotate is provided at one end of the U-shaped workbench 41, and the other end of the U-shaped workbench 41 is a hollow structure 44. This setting is conducive to internal wiring and avoids messy cable layout. It is further explained that the driving source 43 adopts a harmonic motor for easy implementation. I would also like to further explain that the U-shaped workbench 41 can achieve 114° clockwise and counterclockwise rotation between mounting frame 1 11 and mounting frame 2 12, and a limit switch is provided on the U-shaped workbench 41. Such a limit switch can enable the U-shaped workbench 41 to rotate back and forth between -114° and +114°, which is more conducive to meeting usage requirements. Finally, I would like to explain that the fixture 42 is connected between the U-shaped workbench 41 via a servo motor and a connecting plate. This is conducive to the fixture 42 being the C-axis and the U-shaped workbench 41 being the A-axis, thus achieving five axes.

[0029] Example 3: This can be explained based on Example 1 or Example 2, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown in the figure, the cutter head assembly 3 includes a fixed frame 31 arranged on the three-axis transfer mechanism 2, and a processing knife 32 is arranged on the fixed frame 31. This arrangement is reasonable, simple in structure, and easy to implement. It is further explained that the three-axis transfer mechanism 2 is respectively provided with corresponding shafts and drive structures on the x-axis, y-axis, and z-axis to achieve the movement of the cutter head assembly 3 in the x-axis, y-axis, and z-axis directions through the three-axis transfer mechanism 2. It can be understood that the provision of corresponding shafts and drive structures to achieve the movement of the mechanism in the x-axis, y-axis, and z-axis directions is a prior art and will not be described in detail here. Any structure that can achieve the movement of the cutter head assembly 3 in the x-axis, y-axis, and z-axis directions is a variation of the three-axis transfer mechanism 2 of the present invention and falls within the scope of protection claimed by the present invention. In this embodiment, a square hole 13 is opened on the base body 1. The square hole 13 allows the cutter head assembly 3 to move in the x-axis, y-axis, and z-axis directions within this range, and a clamping device 4 is located below the square hole 13, which is conducive to processing the material on the clamping device 4. Finally, I would like to point out that a z-axis transmission device is provided on the seat body 1 at the side of the square hole 13, and an x-axis transmission device is provided on the z-axis transmission device, a y-axis transmission device is provided on the x-axis transmission device, and a cutter head assembly 3 is provided on the y-axis transmission device. This arrangement is reasonable and facilitates the realization of x-axis, y-axis and z-axis movements, wherein x represents the horizontal axis, y represents the longitudinal axis, and z represents the vertical axis. In this embodiment, the three-axis transfer mechanism 2, the cutter head assembly 3 and the material clamping device 4 are all connected to a controller, wherein the controller, that is, the five-axis engraving machine, is based on numerical control technology. A three-dimensional model is drawn through CAD software, the model is converted into a numerical control program, and then input into the control system of the five-axis engraving machine. The control system realizes precise processing of the workpiece by driving the movement of the three-axis transfer mechanism 2 and the material clamping device 4. The five-axis engraving machine has the advantages of high precision, high efficiency and high flexibility, thanks to the high-precision linear guides and precision bearings used in its XYZ axis system and the high speed of the spindle. The design of the five-axis engraving machine enables it to handle complex processing tasks. , such as three-dimensional curved surface engraving and spiral surface processing, through the precise control of the control system and advanced motion control algorithms, the five-axis engraving machine can complete the processing of complex curved surfaces in one clamping, greatly improving the processing efficiency and processing accuracy. Secondly, the control system of the five-axis engraving machine controls the movement of the stepper motor or servo motor of each axis through the computer according to the pre-programmed processing program to realize the control of the workpiece processing. This design enables the five-axis engraving machine to process complex-shaped workpieces such as body parts, turbine parts and impellers with free-form surfaces without having to change the position of the workpiece on the machine tool, thereby greatly improving the processing efficiency of prismatic parts.

[0030] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part adopt conventional means such as mature bolts, rivets and processing knives in the existing technology. The internal components of the controller all adopt conventional models in the existing technology, and its internal structure belongs to the existing technology structure. Workers can complete normal operation of it according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and no detailed description is given here.

[0031] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present utility model. Therefore, based on the innovative concept of the present utility model, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present utility model specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present utility model patent.

Claims

1. A five-axis denture engraving machine work turntable structure, comprising a base (1) and a three-axis transfer mechanism (2) arranged on the base (1), wherein a cutter head assembly (3) is arranged on the three-axis transfer mechanism (2), characterized in that: The lower surface of the base body (1) is provided with a mounting frame 1 (11) and a mounting frame 2 (12) that are distributed opposite to each other, and a rotatable material clamping device (4) is provided between the mounting frame 1 (11) and the mounting frame 2 (12).

2. The five-axis denture engraving machine work turntable structure according to claim 1, characterized in that: The material clamping device (4) includes a U-shaped workbench (41) arranged between the mounting frame 1 (11) and the mounting frame 2 (12), and bearings are respectively provided between the U-shaped workbench (41) and the mounting frame 1 (11) and the mounting frame 2 (12), and a clamp (42) is provided on the U-shaped workbench (41), and the clamp (42) is located below the cutter head assembly (3). A driving source (43) for driving the U-shaped workbench (41) to rotate is provided at one end of the U-shaped workbench (41), and the other end of the U-shaped workbench (41) is a hollow structure (44).

3. The five-axis denture engraving machine work turntable structure according to claim 2, characterized in that: The driving source (43) is a harmonic motor.

4. The five-axis denture engraving machine work turntable structure according to claim 1, 2 or 3, characterized in that: The tool head assembly (3) comprises a fixing frame (31) arranged on the three-axis transfer mechanism (2), and a processing knife (32) is arranged on the fixing frame (31).

5. The five-axis denture engraving machine work turntable structure according to claim 4, characterized in that: A square hole (13) is provided on the seat body (1), and the square hole (13) allows the cutter head assembly (3) to move within the range, and the position below the square hole (13) corresponds to the clamping device (4).

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