Tool changing structure of horizontal five-axis linkage denture carving milling machine

Abstract

This utility model discloses a tool changing structure for a horizontal five-axis linkage dental engraving and milling machine, relating to the field of engraving and milling machine technology. It includes a table, a support frame fixedly mounted on one side of the top of the table, a lead screw rotatably mounted on the top of the support frame, a slider threadedly connected to the surface of the lead screw via a lead screw nut, a motor mounted below the slider, a tool holder fixedly mounted on the output shaft of the motor, a tool engaging at the bottom of the tool holder, supports fixedly mounted on both sides of the tool holder, a limiting strip slidably mounted in the middle of the supports, limiting grooves slidably engaging with the limiting strips on both sides of the tool, an inclined plate slidably mounted on the top of the limiting strip, and an inclined groove slidably engaging with the inclined plate on the surface of the limiting strip. The advantages of this utility model are: facilitating quick disassembly and replacement of tools, simplifying the tool changing operation process, reducing unnecessary operation steps, and significantly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to a tool changing structure, and more particularly to a tool changing structure for a horizontal five-axis linkage dental engraving and milling machine, belonging to the field of engraving and milling machine technology. Background Technology

[0002] Five-axis CNC machine tools are high-tech, high-precision machine tools specifically designed for machining complex curved surfaces. The five-axis CNC machine tool system is a means of machining impellers, blades, marine propellers, heavy generator rotors, steam turbine rotors, large diesel engine crankshafts, etc. Dentures are generally made by milling zirconia ceramic blocks on dental engraving and milling machines. The cutting tools of the five-axis dental engraving and milling machine are a necessary foundation for ensuring the accuracy of denture machining.

[0003] Currently, most of the cutting tools equipped with mainstream five-axis linkage dental engraving and milling machines on the market are fixed with bolts or other fasteners. This fixing method requires the operator to remove the bolts to complete the tool change operation, which adds extra steps to the entire tool change process and reduces production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a tool changing structure for a horizontal five-axis linkage dental engraving and milling machine, so as to solve the problem that the fixing method mentioned in the background art requires the operator to remove bolts to change the tool, which increases the operation steps of the tool changing process and reduces production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tool changing structure for a horizontal five-axis linkage dental engraving and milling machine, including a table, a support frame fixedly mounted on one side of the top of the table, a lead screw rotatably mounted on the top of the support frame, a slider threadedly connected to the surface of the lead screw via a lead screw nut, a motor mounted below the slider, a tool holder fixedly mounted on the output shaft of the motor, a tool engaging at the bottom of the tool holder, supports fixedly mounted on both sides of the tool holder, a limiting strip slidably mounted in the middle of the supports, limiting grooves slidably engaging with the limiting strips on both sides of the tool, an inclined plate slidably mounted on the top of the limiting strip, an inclined groove slidably engaging with the inclined plate on the surface of the limiting strip, and a support component mounted on the surface of the limiting strip.

[0006] As a preferred embodiment of this utility model, the slider is slidably connected to the top of the stand, and two guide rods are symmetrically slidably provided inside the slider, with both ends of the guide rods fixedly connected to the top of the stand.

[0007] As a preferred technical solution of this utility model, an electric motor is fixedly installed on the top of one side of the support frame, and the output shaft of the electric motor passes through the support frame and is fixedly connected to one end of the lead screw.

[0008] As a preferred embodiment of this utility model, an electric push rod is fixedly provided at the bottom end of the slider, and the telescopic rod of the electric push rod is fixedly connected to the top end of the motor.

[0009] As a preferred embodiment of this utility model, the support component includes a movable plate, which is fixedly installed on the surface of the limiting strip and is slidably connected to the inner wall of the bracket.

[0010] As a preferred embodiment of this utility model, a spring is sleeved in the middle of the limiting strip, one end of the spring is fixedly connected to one side of the moving plate, and the other end of the spring is fixedly connected to the inner wall of the bracket.

[0011] As a preferred embodiment of this utility model, a limiting block is fixedly provided on one side of the inclined plate, and a reinforcing plate is fixedly provided on one side of the top end and one side of the bottom end of the inclined plate, and one side of the reinforcing plate is fixedly connected to one side of the upright frame.

[0012] Compared with related technologies, the tool changing structure of the horizontal five-axis linkage dental engraving and milling machine provided by this utility model has the following beneficial effects:

[0013] 1. By controlling the rotation of the lead screw, the slider on its surface can be driven to move along the lead screw axis, thereby driving the motor, tool holder and tool to move synchronously in the horizontal direction. With the help of the sliding contact mechanism of the inclined plate and the inclined groove, the two limit strips can be adjusted in opposite directions at the same time, so that the limit strips are separated from the tool, which facilitates quick disassembly and replacement of the tool, simplifies the tool changing operation process, reduces unnecessary operation steps, and significantly improves production efficiency.

[0014] 2. The support components provided can provide stable support for the limit bar in the horizontal direction, ensuring that the limit bar is tightly inserted with the cutter, effectively preventing displacement of the limit bar during the rotation of the cutter driven by the motor, and ensuring the stability and reliability of the equipment operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bracket of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the bracket of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the tool holder of this utility model;

[0019] Figure 5 This is an exploded view of the tool holder of this utility model;

[0020] Figure 6 This is a cross-sectional structural diagram of the tool holder of this utility model.

[0021] In the diagram: 1. Tabletop; 2. Stand; 3. Lead screw; 4. Slider; 5. Electric actuator; 6. Motor; 7. Tool holder; 8. Tool; 9. Bracket; 10. Limiting strip; 11. Inclined plate; 12. Inclined groove; 13. Support assembly; 1301. Moving plate; 1302. Spring; 1303. Limiting block; 14. Reinforcing plate; 15. Guide rod; 16. Motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a tool changing structure for a horizontal five-axis linkage dental engraving and milling machine, including a table 1, a support frame 2 fixedly mounted on one side of the top of the table 1, a lead screw 3 rotatably mounted on the top of the support frame 2, a slider 4 threadedly connected to the surface of the lead screw 3 via a lead screw nut, and a motor 6 mounted below the slider 4. By controlling the rotation of the lead screw 3, the slider 4 on its surface can be moved along the surface of the lead screw 3, thereby driving the motor 6, the tool holder 7, and the tool 8 to move horizontally. Through the sliding contact between the inclined plate 11 and the inclined groove 12, the two limiting strips 10 can be synchronously adjusted in opposite directions, so that the limiting strips 10... The tool 8 is separated from the tool 0, which facilitates quick disassembly and replacement of the tool 8, making the operation more convenient and reducing additional operation steps in the tool changing process, thus improving production efficiency. The output shaft of the motor 6 is fixedly equipped with a tool holder 7, and the bottom of the tool holder 7 is fitted with the tool 8. Both sides of the tool holder 7 are fixedly equipped with brackets 9, and the middle of the bracket 9 is slidably equipped with a limiting strip 10. Both sides of the tool 8 are provided with limiting grooves that slide with the limiting strip 10. The top of the limiting strip 10 is slidably equipped with an inclined plate 11, and the surface of the limiting strip 10 is provided with an inclined groove 12 that slides with the inclined plate 11. The surface of the limiting strip 10 is provided with a support component 13.

[0024] The support assembly 13 includes a movable plate 1301, which is fixedly installed on the surface of the limiting strip 10 and slidably connected to the inner wall of the bracket 9. A spring 1302 is sleeved in the middle of the limiting strip 10. One end of the spring 1302 is fixedly connected to one side of the movable plate 1301, and the other end of the spring 1302 is fixedly connected to the inner wall of the bracket 9. The support assembly 13, through the movable plate 1301 and the spring 1302, can ensure that the limiting strip 10 plays a supporting role in the horizontal direction, effectively ensuring that the limiting strip 10 and the cutter 8 are tightly inserted into each other, and preventing the limiting strip 10 from being displaced during the rotation of the cutter 8 driven by the motor 6.

[0025] A limiting block 1303 is fixedly provided on one side of the inclined plate 11, and a reinforcing plate 14 is fixedly provided on one side of the top end and one side of the bottom end of the inclined plate 11. One side of the reinforcing plate 14 is fixedly connected to one side of the upright frame 2. The limiting block 1303 can limit the movement of the inclined plate 11. The reinforcing plate 14 can reinforce the inclined plate 11.

[0026] The slider 4 is slidably connected to the top of the stand 2. Two guide rods 15 are symmetrically slidably provided inside the slider 4, and both ends of the guide rods 15 are fixedly connected to the top of the stand 2. A motor 16 is fixedly provided on the top of one side of the stand 2. The output shaft of the motor 16 passes through the stand 2 and is fixedly connected to one end of the lead screw 3. This allows the slider 4 to slide without any restriction. The guide rods 15 can limit and guide the movement of the slider 4. The motor 16 can drive the lead screw 3 to rotate and adjust.

[0027] The bottom end of the slider 4 is fixedly equipped with an electric push rod 5. The telescopic rod of the electric push rod 5 is fixedly connected to the top end of the motor 6. Through the electric push rod 5, the motor 6, as well as the tool holder 7 and the tool 8, can be driven to move in the vertical direction.

[0028] In use, when tool 8 needs to be changed, the extension and retraction of the electric push rod 5 is controlled, which drives the motor 6, tool holder 7, and tool 8 to move vertically, ensuring that the two limit bars 10 and the inclined plate 11 are on the same horizontal plane. Then, the motor 16 drives the lead screw 3 to rotate and adjust. Combined with the lead screw nut and guide rod 15, the slider 4 can be moved along the surface of the lead screw 3, which in turn drives the electric push rod 5, motor 6, tool holder 7, and tool 8 to move horizontally. This causes the limit bars 10 to move closer to the inclined plate 11. Through the sliding contact between the inclined plate 11 and the inclined groove 12, the continuous displacement of the limit bars 10 can synchronously drive the two limit bars 10 to adjust in opposite directions, so that the limit bars 10 and tool 8 are separated from each other, which facilitates quick disassembly and replacement of tool 8. The operation is more convenient, reduces additional operation steps in the tool changing process, and improves production efficiency.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool changing structure for a horizontal five-axis linkage dental engraving and milling machine, comprising a table (1), characterized in that, A support frame (2) is fixedly provided on one side of the top of the tabletop (1). A lead screw (3) is rotatably provided on the top of the support frame (2). A slider (4) is threadedly connected to the surface of the lead screw (3) through a lead screw nut. A motor (6) is provided below the slider (4). A tool holder (7) is fixedly provided on the output shaft of the motor (6). A tool (8) is engaged at the bottom of the tool holder (7). A bracket (9) is fixedly provided on both sides of the tool holder (7). A limiting strip (10) is slidably provided in the middle of the bracket (9). A limiting groove that slides with the limiting strip (10) is provided on both sides of the tool (8). An inclined plate (11) is slidably provided on the top of the limiting strip (10). An inclined groove (12) that slides with the inclined plate (11) is provided on the surface of the limiting strip (10). A support component (13) is provided on the surface of the limiting strip (10).

2. The tool changing structure of the horizontal five-axis linkage dental engraving and milling machine according to claim 1, characterized in that: The slider (4) is slidably connected to the top of the stand (2). Two guide rods (15) are symmetrically slidably provided inside the slider (4). Both ends of the guide rods (15) are fixedly connected to the top of the stand (2).

3. The tool changing structure of the horizontal five-axis linkage dental engraving and milling machine according to claim 1, characterized in that: An electric motor (16) is fixedly installed on the top of one side of the support frame (2). The output shaft of the electric motor (16) passes through the support frame (2) and is fixedly connected to one end of the lead screw (3).

4. The tool changing structure of the horizontal five-axis linkage dental engraving and milling machine according to claim 1, characterized in that: The bottom end of the slider (4) is fixedly provided with an electric push rod (5), and the telescopic rod of the electric push rod (5) is fixedly connected to the top end of the motor (6).

5. The tool changing structure of the horizontal five-axis linkage dental engraving and milling machine according to claim 1, characterized in that: The support assembly (13) includes a movable plate (1301), which is fixedly installed on the surface of the limiting strip (10) and is slidably connected to the inner wall of the bracket (9).

6. The tool changing structure of the horizontal five-axis linkage dental engraving and milling machine according to claim 5, characterized in that: A spring (1302) is sleeved in the middle of the limiting strip (10). One end of the spring (1302) is fixedly connected to one side of the moving plate (1301), and the other end of the spring (1302) is fixedly connected to the inner wall of the bracket (9).

7. The tool changing structure of the horizontal five-axis linkage dental engraving and milling machine according to claim 1, characterized in that: A limiting block (1303) is fixedly provided on one side of the inclined plate (11), and a reinforcing plate (14) is fixedly provided on one side of the top end and one side of the bottom end of the inclined plate (11). One side of the reinforcing plate (14) is fixedly connected to one side of the upright frame (2).

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