Vibration stability augmentation device of five-axis 3d printer

Abstract

The utility model discloses a vibration stability augmentation device of a five-axis 3d printer, which comprises a bearing seat, the inner wall of the bearing seat is rotatably connected with a threaded rod, and a rubber ring and a friction pad are arranged in the bearing seat. When the threaded rod is static, the air cylinder can drive the friction pad to be tightly attached to the outer surface of the rubber ring to be matched with self-locking of an external servo motor, rotation of the threaded rod beyond the specified condition is reduced, meanwhile, the threaded rod can drive the balance weight barrel when rotating, the balance weight barrel is filled with iron sand, and the balance weight barrel is prevented from rotating. The counterweight cylinder can drive iron sand in the counterweight cylinder to roll during rotation, so that starting rotating force required by the threaded rod during rotation is increased, friction between the threaded rod and threads on the inner wall of a pushed object is greatly reduced, abrasion is reduced, the service life of equipment is prolonged, and the service life of the equipment is prolonged. And during moving, good stability is kept, the vibration effect is reduced, and the problem that the tray for bearing the 3D printing objects vibrates due to fast starting driving is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, and particularly relates to a vibration enhancement and stability device for a five-axis 3D printer. Background Technique

[0002] Compared with traditional three-axis 3D printers, five-axis 3D printers have two additional rotating axes, respectively marked as A and B (sometimes including the C axis), which rotate around the X, Y, and Z axes respectively, thus achieving more complex printing effects. This design can not only completely eliminate the support structure during the printing process, but also obtain higher surface finish, greater design flexibility, and stronger part strength. By printing from different directions, the parts can become stronger. However, five-axis 3D printing technology also faces some challenges, such as more complex machine dynamics and more cumbersome slicing processes. Currently, most five-axis 3D printers on the market or still under development are hybrid systems with a general CNC system for the print head, which can achieve multiple functions.

[0003] The tray for carrying printed items on a five-axis 3D printer is usually driven by a threaded rod. However, when the motor starts running, the relatively fast starting drive will cause the threaded rod to wear the inner wall threads of the object being driven under the tray, resulting in an increasing gap between the inner wall threads of the object being driven and the threaded rod. Therefore, slight vibrations will occur. But when the printed objects accumulated on the tray become heavier, the threaded rod will cause a significantly larger vibration amplitude during transmission. To solve this technical problem, the utility model proposes a vibration enhancement and stability device for a five-axis 3D printer. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a vibration enhancement and stability device for a five-axis 3D printer, which can effectively solve the problems mentioned in the background technique.

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

[0006] A vibration enhancement and stability device for a five-axis 3D printer includes a load-bearing seat. The inner wall of the load-bearing seat is rotationally connected with a threaded rod. A rubber ring and a friction pad are arranged inside the load-bearing seat. A cylinder is installed on the outer surface of the load-bearing seat, and a counterweight cylinder is arranged outside the load-bearing seat.

[0007] Preferably, the outer surface of the threaded rod is fixedly installed with the inner wall of the rubber ring. A first synchronous pulley is fixedly installed on the outer surface of the threaded rod. A driven rod is rotationally connected to the inner wall of the load-bearing seat, and second synchronous pulleys are fixedly installed at both ends of the driven rod.

[0008] Preferably, the second synchronous pulley is driven by a synchronous belt to interact with the first synchronous pulley. One end of the counterweight cylinder is fixedly installed on the outer surface of the second synchronous pulley. A bearing frame is fixedly installed on the outer surface of the load-bearing seat, and the other end of the counterweight cylinder is rotatably connected to the bearing frame.

[0009] Preferably, a tripod is fixedly installed on the outer surface of the load-bearing seat. Three wheel seats are fixedly installed on the outer surface of the tripod. Three positioning wheels are rotatably connected to the outer surface of each wheel seat, and the outer surface of the positioning wheel is in close contact with the outer surface of the synchronous belt.

[0010] Preferably, a first transmission plate and a second transmission plate are arranged outside the threaded rod. Teeth are fixedly installed on the outer surfaces of the first transmission plate and the second transmission plate. A rotating ring is rotatably connected to the outer surface of the load-bearing seat. A transmission rod is fixedly installed on the outer surface of the rotating ring, and the outer surface of the transmission rod meshes with the outer surface of the teeth.

[0011] Preferably, sliding grooves are formed on the outer surfaces of the first transmission plate and the second transmission plate. A guiding plate is fixedly installed on the outer surface of the load-bearing seat, and the outer surface of the guiding plate is slidably connected to the outer surface of the sliding groove.

[0012] Preferably, the outer surface of the first transmission plate is fixedly installed on the output end of the air cylinder. A sliding rod is fixedly installed on the outer surface of the second transmission plate. A sliding sleeve is fixedly installed on the outer surface of the sliding rod, and the outer surface of the sliding sleeve is fixedly installed on the outer surface of the load-bearing seat. A spring is sleeved on the outer surface of the sliding sleeve. The outer surfaces of the first transmission plate and the second transmission plate are both fixedly installed on the outer surface of the friction pad.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, through the cooperation among the load-bearing seat, the threaded rod, the rubber ring, the friction pad, the air cylinder and the counterweight cylinder, the load-bearing seat can provide support for the threaded rod. When the threaded rod rotates, it can drive the object to be pushed and the tray to move. When the threaded rod is stationary, the air cylinder can drive the friction pad to tightly adhere to the outer surface of the rubber ring, cooperating with the self-locking of the external servo motor to reduce the unexpected self-rotation of the threaded rod. At the same time, when the threaded rod rotates, it can drive the counterweight cylinder. The counterweight cylinder is filled with iron sand inside. When the counterweight cylinder rotates, it can drive the iron sand inside to roll. Therefore, the starting torque required for the threaded rod to rotate increases. When the motor is started instantly, the friction between the threaded rod and the inner wall thread of the object to be pushed is greatly reduced, thereby reducing wear and improving the service life of the equipment. It maintains good stability during movement and reduces the vibration effect, solving the problem that the rapid starting drive will cause the tray for carrying 3D printed items to vibrate.

[0015] In the present utility model, through the cooperation among the first transmission plate, the second transmission plate, the spring, the friction pad, the rubber ring, the threaded rod and the air cylinder, the air cylinder can push or pull back the first transmission plate, and the spring can assist the second transmission plate to ensure that the first transmission plate and the second transmission plate can drive the friction pad to simultaneously friction the rubber ring, so that the threaded rod will not have self-rotation behavior beyond the regulations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the vibration enhancement and stabilization device of the five-axis 3D printer of the present utility model;

[0017] Figure 2 It is another perspective schematic diagram of the overall structure of the vibration enhancement and stabilization device of the five-axis 3D printer of the present utility model;

[0018] Figure 3 It is an exploded external structure schematic diagram of the load-bearing seat of the vibration enhancement and stabilization device of the five-axis 3D printer of the present utility model;

[0019] Figure 4 It is a schematic diagram of the internal planar structure of the load-bearing seat of the vibration enhancement and stabilization device of the five-axis 3D printer of the present utility model;

[0020] Figure 5 It is an exploded internal structure schematic diagram of the load-bearing seat of the vibration enhancement and stabilization device of the five-axis 3D printer of the present utility model.

[0021] In the figure: 1. Load-bearing seat; 2. Threaded rod; 3. Rubber ring; 4. Friction pad; 5. Air cylinder; 6. Counterweight cylinder; 7. First synchronous pulley; 8. Driven rod; 9. Second synchronous pulley; 10. Synchronous belt; 11. Carrier; 12. Tripod; 13. Wheel seat; 14. Idler wheel; 15. First transmission plate; 16. Second transmission plate; 17. Teeth; 18. Rotating ring; 19. Transmission rod; 20. Chute; 21. Orienting plate; 22. Slide bar; 23. Slide sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] As Figures 1-5As shown, the vibration stabilization device of a five-axis 3D printer includes a load-bearing seat 1. The inner wall of the load-bearing seat 1 is rotatably connected to a threaded rod 2. Inside the load-bearing seat 1, there is a rubber ring 3 and a friction pad 4. A cylinder 5 is installed on the outer surface of the load-bearing seat 1, and a counterweight cylinder 6 is arranged outside the load-bearing seat 1. The load-bearing seat 1 can provide support for the threaded rod 2. When the threaded rod 2 rotates, it can drive the object to be pushed and the tray to move. When the threaded rod 2 is stationary, the cylinder 5 can drive the friction pad 4 to closely adhere to the outer surface of the rubber ring 3, cooperating with the self-locking of the external servo motor to reduce the unexpected self-rotation of the threaded rod 2. At the same time, when the threaded rod 2 rotates, it can drive the counterweight cylinder 6. The inside of the counterweight cylinder 6 is filled with iron sand. When the counterweight cylinder 6 rotates, it can drive the iron sand inside to roll. Therefore, the starting torque required for the threaded rod 2 to rotate increases. When the motor is started, the friction between the threaded rod 2 and the inner wall thread of the object to be pushed is greatly reduced, thereby reducing wear, increasing the service life of the equipment, maintaining good stability during movement and reducing the occurrence of vibration, and solving the problem that a relatively fast starting drive will cause the tray for carrying 3D printed items to vibrate.

[0024] The outer surface of the threaded rod 2 and the inner wall of the rubber ring 3 are fixedly installed. A first synchronous pulley 7 is fixedly installed on the outer surface of the threaded rod 2. A driven rod 8 is rotatably connected to the inner wall of the load-bearing seat 1. Synchronous pulleys 9 are fixedly installed at both ends of the driven rod 8. A bearing is installed inside the load-bearing seat 1, and the bearing is sleeved on the outer surface of the driven rod 8, making the driven rod 8 rotate more flexibly, smoothly and steadily.

[0025] The second synchronous pulley 9 and the first synchronous pulley 7 are mutually driven by a synchronous belt 10. The outer surface of the second synchronous pulley 9 and one end of the counterweight cylinder 6 are fixedly installed. A carrier 11 is fixedly installed on the outer surface of the load-bearing seat 1, and the carrier 11 is rotatably connected to the other end of the counterweight cylinder 6. One end of the threaded rod 2 is connected to an external servo motor. When the servo motor is driven, it can drive the threaded rod 2. When the threaded rod 2 rotates, it can drive the first synchronous pulley 7, and the first synchronous pulley 7 can drive the counterweight cylinder 6 through the second synchronous pulley 9. The inside of the counterweight cylinder 6 is filled with half of the iron sand, making the threaded rod 2 start slowly to reduce the wear on the surface of the threaded rod 2 caused by sudden rotation.

[0026] A tripod 12 is fixedly installed on the outer surface of the load-bearing seat 1. Three wheel seats 13 are fixedly installed on the outer surface of the tripod 12. Three positioning wheels 14 are rotatably connected to the outer surface of each wheel seat 13. The outer surface of the positioning wheel 14 is in contact with and closely adheres to the outer surface of the synchronous belt 10. The tripod 12 can provide support for the positioning wheels 14 through the wheel seats 13, and the positioning wheels 14 can ensure that the synchronous belt 10 is always in the predetermined track to reduce the situation of the synchronous belt 10 shifting or misaligning.

[0027] On the outside of the threaded rod 2, there are arranged a first drive plate 15 and a second drive plate 16. Tooth teeth 17 are fixedly installed on the outer surfaces of the first drive plate 15 and the second drive plate 16. The outer surface of the load-bearing seat 1 is rotatably connected with a rotating ring 18. A drive rod 19 is fixedly installed on the outer surface of the rotating ring 18. The outer surface of the drive rod 19 and the outer surface of the tooth teeth 17 are meshed with each other. When the first drive plate 15 moves, it can drive the rotating ring 18 to rotate through the tooth teeth 17 and the drive rod 19. While the rotating ring 18 rotates, it can also drive the second drive plate 16 to move, so that the moving directions of the first drive plate 15 and the second drive plate 16 are opposite to each other, and the moving distances and moving speeds are the same.

[0028] Chute grooves 20 are formed on the outer surfaces of both the first drive plate 15 and the second drive plate 16. A guiding plate 21 is fixedly installed on the outer surface of the load-bearing seat 1. The outer surface of the guiding plate 21 and the outer surface of the chute grooves 20 are slidably connected. When the first drive plate 15 and the second drive plate 16 slide, they can move in the direction given by the guiding plate 21 through the chute grooves 20, making the first drive plate 15 and the second drive plate 16 move more stably when moving.

[0029] The outer surface of the first drive plate 15 is fixedly installed with the output end of the air cylinder 5. A sliding rod 22 is fixedly installed on the outer surface of the second drive plate 16. A sliding sleeve 23 is fixedly installed on the outer surface of the sliding rod 22. The outer surface of the sliding sleeve 23 is fixedly installed on the outer surface of the load-bearing seat 1. A spring is sleeved on the outer surface of the sliding sleeve 23. The outer surfaces of both the first drive plate 15 and the second drive plate 16 are fixedly installed with the outer surface of the friction pad 4. The air cylinder 5 can push or pull back the first drive plate 15. The spring can assist the second drive plate 16 to ensure that the first drive plate 15 and the second drive plate 16 can drive the friction pad 4 to friction the rubber ring 3 at the same time, so that the threaded rod 2 will not have self-rotation behavior beyond the regulations.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration stabilization device for a five-axis 3D printer, characterized in that: The invention comprises a load-bearing seat (1), the inner wall of which is rotatably connected to a threaded rod (2), a rubber ring (3) and a friction pad (4) are arranged inside the load-bearing seat (1), a cylinder (5) is installed on the outer surface of the load-bearing seat (1), and a counterweight cylinder (6) is arranged outside the load-bearing seat (1).

2. The vibration stabilization device for a five-axis 3D printer according to claim 1, characterized in that: The outer surface of the threaded rod (2) and the inner wall of the rubber ring (3) are fixedly mounted, a synchronous wheel 1 (7) is fixedly mounted on the outer surface of the threaded rod (2), a driven rod (8) is rotatably connected to the inner wall of the load-bearing seat (1), and synchronous wheels 2 (9) are fixedly mounted on both ends of the driven rod (8).

3. The vibration stabilization device for a five-axis 3D printer according to claim 2, characterized in that: The synchronous wheel 2 (9) is mutually driven with the synchronous wheel 1 (7) via a synchronous belt (10); the outer surface of the synchronous wheel 2 (9) is fixedly mounted on one end of the counterweight cylinder (6); a bearing frame (11) is fixedly mounted on the outer surface of the bearing seat (1); and the bearing frame (11) is rotatably connected to the other end of the counterweight cylinder (6).

4. The vibration stabilization device for a five-axis 3D printer according to claim 3, characterized in that: A tripod (12) is fixedly mounted on the outer surface of the load-bearing seat (1), and three wheel seats (13) are fixedly mounted on the outer surface of the tripod (12). The outer surface of each wheel seat (13) is rotatably connected to three positioning wheels (14), and the outer surface of the positioning wheel (14) is in close contact with the outer surface of the synchronous belt (10).

5. The vibration stabilization device for a five-axis 3D printer according to claim 1, characterized in that: A transmission plate 1 (15) and a transmission plate 2 (16) are arranged outside the threaded rod (2), and teeth (17) are fixedly mounted on the outer surfaces of the transmission plate 1 (15) and the transmission plate 2 (16). A rotating ring (18) is rotatably connected to the outer surface of the load-bearing seat (1), and a transmission rod (19) is fixedly mounted on the outer surface of the rotating ring (18), and the outer surface of the transmission rod (19) is meshed with the outer surface of the teeth (17).

6. The vibration stabilization device for a five-axis 3D printer according to claim 5, characterized in that: The outer surfaces of the transmission plate 1 (15) and the transmission plate 2 (16) are both provided with a slide groove (20), and the outer surface of the load-bearing seat (1) is fixedly mounted with an orientation plate (21), and the outer surface of the orientation plate (21) is slidably connected to the outer surface of the slide groove (20).

7. The vibration stabilization device for a five-axis 3D printer according to claim 5, characterized in that: The outer surface of the transmission plate 1 (15) is fixedly mounted on the output end of the cylinder (5); the outer surface of the transmission plate 2 (16) is fixedly mounted with a slide rod (22); the outer surface of the slide rod (22) is fixedly mounted with a slide sleeve (23); the outer surface of the slide sleeve (23) is fixedly mounted on the outer surface of the load-bearing seat (1); the outer surface of the slide sleeve (23) is sleeved with a spring; the outer surfaces of the transmission plate 1 (15) and the transmission plate 2 (16) are both fixedly mounted on the outer surface of the friction pad (4).

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