Fixture special for false tooth cutting disc material

Abstract

The utility model relates to the technical field of part processing, in particular to a special fixture for a false tooth cutting disc material, which comprises a material disc assembly structure, a fixture structure, an A-axis motor structure, a motor cover and a B-axis expansion module, the material disc assembly structure comprises a material disc, a material disc fixing seat, a material disc gland and a material disc base; the clamp structure comprises a steel ball, a clamp fixing ring, a pull rod, a clamp piston, a clamp air cylinder, an air cylinder fixing ring, an upper air inlet hole, a lower air inlet hole, an upper air outlet hole and a lower air outlet hole. The clamp fixing ring and the charging tray base are in limited contact through a steel ball, and the steel ball is embedded in the clamp fixing ring and can be in contact with the pull rod; and the motor cover covers the A-axis motor structure and is connected with the B-axis expansion module through a bolt. According to the utility model, the processing stability and the processing precision of false teeth can be improved.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, specifically a special fixture for cutting discs for dental prostheses. Background Technology

[0002] Dentures, also known as prosthetic teeth, are teeth manufactured by a factory to mimic the shape and function of natural teeth after the loss of natural teeth. Unlike traditional parts machining, denture manufacturing is characterized by customization, personalization, and the processing of complex curved surfaces. Currently, multi-axis machining methods are mainly used, such as five-axis cutting machines, which can simultaneously control the movement of three linear axes and two rotary axes, allowing the cutting tool to process the workpiece from multiple angles, thus improving the flexibility and precision of the machining process.

[0003] During the denture manufacturing process, the multi-axis machining of dentures generates complex combined forces in multiple directions on the material tray, which places new demands on the material tray fixture: it needs to ensure the stability of the material tray while machining complex curved surfaces in order to ensure high precision in denture manufacturing. Utility Model Content

[0004] The purpose of this invention is to propose a special fixture for (five-axis) dental prosthesis cutting discs, which can improve the processing stability and accuracy of dental prostheses.

[0005] To achieve the above objectives, the specific technical solution adopted by this utility model is as follows:

[0006] A special fixture for cutting dental prostheses includes a material tray assembly structure, a fixture structure, an A-axis motor structure, a motor cover, and a B-axis extension module. The material tray assembly structure includes a material tray, a material tray fixing seat, a material tray cover, and a material tray base. The fixture structure includes steel balls, a fixture fixing ring, a pull rod, a fixture piston, a fixture cylinder, a cylinder fixing ring, an upper air inlet, a lower air inlet, an upper air outlet, and a lower air outlet. The fixture fixing ring and the material tray base are in contact via a steel ball, which is embedded in the fixture fixing ring and can contact the pull rod. The motor cover is installed outside the A-axis motor structure and is connected to the B-axis extension module by bolts.

[0007] Furthermore, the tray assembly structure is mounted on the fixture structure via mounting holes and locating pin holes, with the locating pin engaging with the locating pin.

[0008] Furthermore, the clamp fixing ring is provided with a steel ball receiving cavity adapted to the steel ball, and the steel ball is placed in the steel ball receiving cavity. The number of steel balls is 4, arranged symmetrically in pairs.

[0009] Furthermore, the tray is installed between the tray fixing seat and the tray cover, the tray fixing seat and the tray cover are connected by bolts, and the tray base and the tray fixing seat are connected by bolts.

[0010] Furthermore, the cylinder retaining ring has an upper air inlet, a lower air inlet, an upper air outlet, and a lower air outlet on its side. The cylinder retaining ring is equipped with the pull rod, the clamping piston, and the clamping cylinder. The clamping piston is installed in the clamping cylinder by a limiting device. The pull rod and the clamping piston are connected by bolts and installed at the upper center position of the clamping piston.

[0011] Furthermore, the A-axis motor structure includes a reducer connecting block, a reducer, a reducer pad, an A-axis motor support plate, an A-axis motor mounting plate, an A-axis motor, and an A-axis motor oil seal cover. The A-axis motor structure is housed inside the motor cover. The reducer connecting block, reducer, reducer pad, A-axis motor mounting plate, and A-axis motor are installed sequentially from top to bottom. The A-axis motor oil seal cover is connected to the B-axis expansion module by bolts and is located above the reducer connecting block. The A-axis motor support plate is installed on one side of the A-axis motor mounting plate.

[0012] This utility model has the following features and beneficial effects:

[0013] 1) The innovative design of the lower half of the circular tray clamping structure facilitates cutting of the tray while stabilizing it to ensure processing results.

[0014] 2) Innovatively, the material tray is gripped by a small cylinder, ensuring a stable connection between the clamp and the material tray.

[0015] 3) The innovative design of the fixture structure ensures machining stability and accuracy. Specifically, the fixture is connected to the air inlet through an air pipe. When the solenoid valve is opened, air is introduced to lift the pull rod. The lifting rod lifts and pushes the steel balls. The steel balls are locked in the material tray fixing seat under the limit of the pull rod. The four steel balls fix the material tray from four directions to prevent the workpiece from loosening or the material tray from shifting during denture cutting, thereby ensuring machining stability and accuracy. Attached Figure Description

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the tray assembly structure in an embodiment of the present invention;

[0020] Figure 4 is a cross-sectional schematic diagram of the material tray assembly structure in an embodiment of this utility model;

[0021] In the figures: Figure 4(a) is a side view of the tray assembly structure; Figure 4(b) is a cross-sectional view along direction AA in Figure 4(a).

[0022] Figure 5 is a schematic cross-sectional view of the clamp structure in an embodiment of this utility model;

[0023] In the figures: Figure 5(a) is a front view of the fixture structure; Figure 5(b) is a cross-sectional view along direction AA in Figure (a).

[0024] Figure 6 This is a side cross-sectional view of the clamp structure in an embodiment of the present invention;

[0025] In the figure: (a) is a side view of the fixture structure; (b) is a cross-sectional view of BB in figure (a).

[0026] Figure 7 This is a schematic diagram of the motor structure in an embodiment of the present utility model;

[0027] In the diagram, 1-material tray assembly structure, 2-clamp structure, 3-A-axis motor structure, 101-material tray, 102-material tray fixing seat, 103-material tray cover, 104-material tray base, 201-clamp fixing ring, 202-steel ball, 203-pull rod, 204-clamp piston, 205-clamp cylinder, 206-cylinder fixing ring, 207-upper air inlet, 208-upper air outlet, 209-lower air inlet, 210-lower air outlet, 301-reducer connecting block, 302-reducer, 303-reducer pad, 304-A-axis motor support plate, 305-A-axis motor mounting plate, 306-A-axis motor, 4-motor cover, 5-B-axis expansion module, 6-A-axis motor oil seal cover. Detailed Implementation

[0028] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0029] like Figure 1 As shown, this utility model discloses a special fixture for dental cutting discs, including a disc assembly structure 1, a fixture structure 2, an A-axis motor structure 3, and a B-axis extension module 5. The fixture structure 2 and the A-axis motor structure 3 are bolted together. The disc assembly structure is mounted on the fixture structure 2 through mounting holes 105 and positioning pin holes 106 with positioning pins, and is limited by steel balls 202. The motor cover 4 is placed outside the A-axis motor structure 3 and is bolted to the B-axis extension module 5.

[0030] like Figure 3As shown in Figure 4, the tray assembly structure 1 includes a tray 101, a tray fixing seat 102, a tray cover 103, and a tray base 104. The tray 101 is clamped and installed between the tray fixing seat 102 and the tray cover 103. The tray fixing seat 102 and the tray cover 103 are connected by bolts, and the tray base 104 and the tray fixing seat 102 are connected by bolts.

[0031] Figure 5- Figure 6 As shown, the clamp structure 2 includes steel balls 202, clamp fixing ring 201, pull rod 203, clamp piston 204, clamp cylinder 205, cylinder fixing ring 206, upper air inlet 207, lower air inlet 209, upper air outlet 208, and lower air outlet 210. The clamp fixing ring 201 is provided with a steel ball receiving cavity adapted to the steel balls 202. The steel balls 202 are placed in the steel ball receiving cavity, and there are 4 of them, which are symmetrically arranged in pairs, so as to fix the material tray from four directions. The steel balls can contact the pull rod 203. The clamp fixing ring 201 and the material tray base 104 are in contact through the limiting contact of the steel balls 202.

[0032] The cylinder retaining ring 206 has an upper air inlet 207, a lower air inlet 209, an upper air outlet 208, and a lower air outlet 210 on its side. The cylinder retaining ring 206 houses the pull rod 203, the clamping piston 204, and the clamping cylinder 205. The clamping piston 204 is positioned within the clamping cylinder 205. The pull rod 203 and the clamping piston 204 are connected by bolts and are mounted at the upper center of the clamping piston 204. The upper air inlet 207 and the lower air outlet 210 cooperate to push the clamping piston 204 downwards, while the lower air inlet 209 and the upper air outlet 208 cooperate to push the clamping piston 204 upwards.

[0033] Before the clamping structure 2 grips the material tray assembly structure 1, air is introduced through the upward air inlet 207 via a control switch, entering the upper half of the clamping cylinder 205. Air in the lower half of the clamping cylinder 205 is discharged through the lower air outlet 210, causing the clamping piston 204 to move the pull rod 203 downwards, allowing the steel ball 202 to enter the steel ball receiving cavity of the clamping fixing ring 201. Further control switches stop the upward air inlet 207 and instead introduce air through the downward air inlet 209, causing the clamping piston 204 to move the pull rod 203 upwards, causing the steel ball 202 to protrude from the steel ball receiving cavity of the clamping fixing ring 201 and complete the gripping of the material tray assembly structure 1 by contacting the mounting hole 105.

[0034] Understandably, after the material tray assembly structure 1 is clamped, it can be further processed in conjunction with the A-axis motor structure 3.

[0035] like Figure 7As shown, the A-axis motor structure 3 includes a reducer connecting block 301, a reducer 302, a reducer pad 303, an A-axis motor support plate 304, an A-axis motor mounting plate 305, an A-axis motor 306, and an A-axis motor oil seal cover 6. The reducer connecting block 301, reducer 302, reducer pad 303, A-axis motor mounting plate 305, and A-axis motor 306 are installed sequentially from top to bottom. The A-axis motor oil seal cover is bolted to the B-axis expansion module and is located above the reducer connecting block. The A-axis motor support plate 304 is installed on one side of the A-axis motor mounting plate 305. The cylinder fixing ring 206 and the reducer connecting block 301 are bolted together. The clamp cylinder 205 and the reducer connecting block 301 are bolted together. Specifically, the reducer connecting block 301, reducer 302 and reducer pad 303 are connected in sequence by bolts, the A-axis motor support plate 304 and A-axis motor mounting plate 305 are connected by bolts, and the A-axis motor 306 and A-axis motor mounting plate 305 are connected by bolts.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A special fixture for cutting dental prosthesis discs, characterized in that: The system includes a tray assembly structure, a clamping structure, an A-axis motor structure, a motor cover, and a B-axis expansion module. The tray assembly structure includes a tray, a tray fixing seat, a tray cover, and a tray base. The clamping structure includes steel balls, a clamping fixing ring, a pull rod, a clamping piston, a clamping cylinder, a cylinder fixing ring, an upper air inlet, a lower air inlet, an upper air outlet, and a lower air outlet. The clamping fixing ring and the tray base are in contact via a steel ball, which is embedded in the clamping fixing ring and can contact the pull rod. The motor cover is located outside the A-axis motor structure and is connected to the B-axis expansion module via bolts.

2. The special fixture for cutting dental prostheses as described in claim 1, characterized in that: The tray assembly structure is mounted on the fixture structure via mounting holes and locating pin holes, with locating pins engaging to secure it.

3. The special fixture for cutting dental discs as described in claim 1, characterized in that: The clamp fixing ring is provided with a steel ball receiving cavity adapted to the steel ball. The steel ball is placed in the steel ball receiving cavity, and the number of steel balls is 4, arranged symmetrically in pairs.

4. The special fixture for cutting dental discs as described in claim 1, characterized in that: The tray is installed between the tray fixing seat and the tray cover, and the tray fixing seat and the tray cover are connected by bolts. The tray base and the tray fixing seat are also connected by bolts.

5. A special fixture for cutting dental prostheses as described in claim 1, characterized in that: The cylinder retaining ring has an upper air inlet, a lower air inlet, an upper air outlet, and a lower air outlet on its side. The cylinder retaining ring is equipped with the pull rod, the clamping piston, and the clamping cylinder. The clamping piston is installed in the clamping cylinder by a limiting device. The pull rod and the clamping piston are connected by bolts and are installed at the upper center position of the clamping piston.

6. The special fixture for cutting dental discs as described in claim 1, characterized in that: The A-axis motor structure includes a reducer connecting block, a reducer, a reducer pad, an A-axis motor support plate, an A-axis motor mounting plate, an A-axis motor, and an A-axis motor oil seal cover. The reducer connecting block, reducer, reducer pad, A-axis motor mounting plate, and A-axis motor are installed sequentially from top to bottom. The A-axis motor oil seal cover is connected to the B-axis expansion module by bolts and is located above the reducer connecting block. The A-axis motor support plate is installed on one side of the A-axis motor mounting plate.

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