Tightening type electric spindle

Abstract

The utility model relates to the technical field of motorized spindles, and discloses a tightening type motorized spindle which comprises a machine body, a dust removal hole is formed in the top end of the machine body, a cross-shaped blade is fixedly connected to the inner wall of the dust removal hole, and a dust removal ring is fixedly connected to the position, close to the dust removal hole, of the outer surface of the machine body. The dust remover is started, dust and chippings in the machine body are sucked through a first dust removal pipe and a dust removal ring, the chippings and the dust reach the first dust removal pipe through dust removal holes formed in the machine body, the dust and the chippings can pass through cross-shaped blades in the dust removal holes, and the cross-shaped blades can cut the dust and the chippings; impurities generated when the tightening type electric spindle works can accelerate abrasion of spindle components and shorten the service life of the spindle, the dust removal device can reduce damage of the impurities to the spindle, the service life of the spindle is prolonged, and the service life of the spindle is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electric spindle technology, specifically a tightening type electric spindle. Background Technology

[0002] With the continuous development of the manufacturing industry, the requirements for machining accuracy, efficiency, and reliability are becoming increasingly stringent. In fields such as automotive manufacturing, aerospace, and electronic equipment, high-precision, high-speed machining equipment is needed to meet the machining needs of complex parts. The retractable electric spindle has emerged to address this need. Through a unique retracting mechanism, it can achieve a rapid and secure connection between the tool and the workpiece, improving machining efficiency and accuracy. Continuous advancements in materials science, motor technology, and control technology have provided strong support for the development of retractable electric spindles. The application of new materials has made the electric spindle structure more compact and robust; the emergence of high-performance motors has increased the spindle's speed and power; and advanced control technology enables precise control of the electric spindle, improving machining quality and stability. However, traditional retractable electric spindles lack cleaning functions, which reduces their service life.

[0003] A search revealed Chinese utility model patent CN219067971U, which discloses a rear-mounted electric spindle for a motor. The spindle includes a body, an output shaft, and a drive chamber. The output shaft is mounted within the body, and rotors are mounted on the outer walls of the output shaft. The drive chamber is located at the connection between the body and the rotors, and a stator is mounted on the side walls of the drive chamber. A water-cooling chamber is located on the outer side of the drive chamber, and water-cooling pipes are installed within the water-cooling chamber. The advantages are: through the design of the body, connecting bearing, oil injection chamber, distributor, and oil drainage chamber, this utility model enables the electric spindle to perform water-cooling operations on both the motor drive mechanism and the connecting bearings simultaneously. This prevents the connecting bearings from experiencing excessive temperature changes after prolonged operation, thus ensuring the transmission accuracy of the electric spindle and consequently extending its service life.

[0004] However, the device lacks a cleaning function, which means it cannot clean the dust and debris inside the tightening electric spindle during use, resulting in reduced spindle efficiency. In addition, the device lacks an auxiliary heat dissipation function, which means it cannot help cool the spindle during use, resulting in high spindle temperature and short lifespan. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a retractable electric spindle to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a tightening electric spindle, comprising a body, a dust removal hole at the top of the body, a cross blade fixedly connected to the inner wall of the dust removal hole, a dust removal ring fixedly connected to the outer surface of the body near the dust removal hole, a dust removal pipe I fixedly connected to the outer surface of the dust removal ring, a dust collector fixedly connected to the end of the dust removal pipe I away from the dust removal ring, a dust removal pipe II fixedly connected to the end of the dust collector away from the dust removal pipe I, and a collection box fixedly connected to the end of the dust removal pipe II away from the dust collector, with a dust discharge hole at the bottom of the collection box.

[0009] Preferably, a heat dissipation box is fixedly connected to the bottom of the machine body, a filter screen is fixedly connected to the inner wall of the heat dissipation box, and a fan is fixedly connected to the inner wall of the heat dissipation box near the filter screen.

[0010] Preferably, a bearing is fixedly connected inside the machine body, and an oil injection valve is provided at the top of the bearing.

[0011] Preferably, a main shaft is fixedly connected to the inner wall of the bearing, and a motor is fixedly connected to the end of the main shaft away from the bearing.

[0012] Preferably, a rotor is provided on the outer surface of the main shaft, and a stator is provided on the outer surface of the rotor.

[0013] Preferably, a dust baffle is fixedly connected to the inner wall of the machine body near the bearing.

[0014] Preferably, the top end of the spindle has a bayonet.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model involves starting the motor and, after the tightening electric spindle completes its work, activating the dust collector. The dust collector, through the dust collection pipe and dust collection ring, sucks up dust and debris from inside the machine body. The dust and debris pass through suction holes inside the machine body into the suction pipe. The dust and debris then pass through cross-shaped blades in the suction holes, which cut the dust and debris, preventing blockage of the suction pipe. Impurities generated during the operation of the tightening electric spindle accelerate the wear of spindle components and reduce its service life. The dust collection device reduces the damage to the spindle caused by impurities, extends its lifespan, and improves its overall service life.

[0017] 2. In this utility model, when the tightening electric spindle is working, the fan is started to dissipate heat from the rotating spindle, thereby enhancing the heat dissipation effect of the spindle. Especially when running under high load for a long time, the auxiliary cooling fan can accelerate airflow and improve cooling efficiency to achieve the best cooling effect. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of the electric spindle of this utility model;

[0019] Figure 2 This is a schematic diagram of the dust removal hole and cross blade of this utility model;

[0020] Figure 3 This is a schematic diagram of the filter screen and the fan of this utility model;

[0021] Figure 4 This is a schematic diagram of the rotor and stator of this utility model.

[0022] The image shows:

[0023] In the diagram: 1. Machine body; 2. Dust removal hole; 3. Cross blade; 4. Dust removal ring; 5. Dust removal pipe one; 6. Dust collector; 7. Dust removal pipe two; 8. Collection box; 9. Dust discharge hole; 10. Heat dissipation box; 11. Filter screen one; 12. Fan; 13. Bearing; 14. Oil injection valve; 15. Main shaft; 16. Motor; 17. Rotor; 18. Stator; 19. Dust baffle; 20. Bayonet. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 A retractable electric spindle includes a body 1. A dust removal hole 2 is provided at the top of the body 1. A cross-shaped blade 3 is fixedly connected to the inner wall of the dust removal hole 2. A dust removal ring 4 is fixedly connected to the outer surface of the body 1 near the dust removal hole 2. A dust removal pipe 5 is fixedly connected to the outer surface of the dust removal ring 4. A dust collector 6 is fixedly connected to the end of the dust removal pipe 5 away from the dust removal ring 4. A second dust removal pipe 7 is fixedly connected to the end of the dust collector 6 away from the first dust removal pipe 5. A collection box 8 is fixedly connected to the end of the second dust removal pipe 7 away from the dust collector 6. A dust discharge hole 9 is provided at the bottom of the collection box 8. After the retractable electric spindle completes its work, the dust collector 6 is activated. The dust removal device starts by sucking up dust and debris from inside the machine body 1 through the dust removal pipe 5 and the dust removal ring 4. The dust and debris enter the dust removal pipe through the dust removal hole inside the machine body 1. The dust and debris pass through the cross blade 3 in the dust removal hole, which cuts the dust and debris to prevent them from clogging the dust removal pipe. During the operation of the electric spindle 15, dust, oil and chips will inevitably be generated. These impurities will accelerate the wear of the spindle 15 components and reduce the service life of the spindle 15. The dust removal device can reduce the damage of impurities to the spindle 15 and extend its service life.

[0026] In this embodiment, preferably, a heat sink 10 is fixedly connected to the bottom of the body 1, a filter screen 11 is fixedly connected to the inner wall of the heat sink 10, and a fan 12 is fixedly connected to the inner wall of the heat sink 10 near the filter screen 11. When the tightening electric spindle is working, the fan 12 is started, and the fan 12 dissipates heat from the rotating spindle 15, enhancing the heat dissipation effect of the spindle 15. Especially when running under high load for a long time, the auxiliary cooling fan 12 can accelerate the airflow and improve the cooling efficiency to achieve the best cooling effect.

[0027] In this embodiment, preferably, a bearing 13 is fixedly connected inside the machine body 1. An oil injection valve 14 is provided at the top of the bearing 13. A spindle 15 is located on the inner wall of the bearing 13. The spindle 15 rotates in the bearing 13. Cooling oil can be injected through the oil injection valve 14. The cooling oil injected through the oil injection valve 14 can cool down the bearing 13 and the spindle 15, preventing the spindle 15 from being too hot and affecting its service life, and preventing the spindle 15 from becoming too hot and reducing its accuracy, thus affecting the performance of the tightening electric spindle.

[0028] In this embodiment, preferably, a spindle 15 is fixedly connected to the inner wall of the bearing 13, and a motor 16 is fixedly connected to the end of the spindle 15 away from the bearing 13. When the motor 16 is started, the motor 16 drives the spindle 15 to rotate, so that the tightening electric spindle can work.

[0029] In this embodiment, preferably, a rotor 17 is provided on the outer surface of the main shaft 15, and a stator 18 is provided on the outer surface of the rotor 17. The rotor 17 is the rotating part of the electric main shaft 15. Through the electromagnetic interaction between the rotor 17 and the stator 18, electrical energy is converted into mechanical energy to generate rotational power. The stator 18 plays the role of supporting and fixing the rotor 17 to ensure the stability and accuracy of the rotor 17 during rotation.

[0030] In this embodiment, preferably, a dust baffle 19 is fixedly connected to the inner wall of the machine body 1 near the bearing 13. The dust baffle 19 can prevent dust, impurities and other contaminants from entering the electric spindle 15, affecting the normal operation of the bearing 13 and the motor 16, and extending the service life of the spindle 15.

[0031] In this embodiment, preferably, a bayonet 20 is provided at the top of the spindle 15. The quick-connect bayonet 20 can connect and disconnect tools and fixtures on the spindle 15 in a very short time, which greatly improves the working efficiency of the retractable electric spindle.

[0032] In this embodiment, when the testing device for a tightening electric spindle is in use, the fan 12 is started while the tightening electric spindle is working. The fan 12 dissipates heat from the rotating spindle 15, enhancing the heat dissipation effect of the spindle 15. Especially during long-term high-load operation, the auxiliary cooling fan 12 can accelerate airflow and improve cooling efficiency. After the tightening electric spindle finishes its work, the dust collector 6 is started. The dust collector 6 starts to suck up dust and debris inside the machine body 1 through the dust collection pipe 5 and the dust collection ring 4. The debris and dust reach the dust collection pipe 1 through the dust collection hole opened inside the machine body 1. The dust and debris will pass through the cross blade 3 in the dust collection hole. The cross blade 3 will cut the dust and debris to prevent the dust and debris from clogging the dust collection pipe.

[0033] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A retractable electric spindle, comprising a body (1), characterized in that: The top of the body (1) is provided with a dust removal hole (2), and a cross blade (3) is fixedly connected to the inner wall of the dust removal hole (2). A dust removal ring (4) is fixedly connected to the outer surface of the body (1) near the dust removal hole (2). A dust removal pipe (5) is fixedly connected to the outer surface of the dust removal ring (4). A dust collector (6) is fixedly connected to the end of the dust removal pipe (5) away from the dust removal ring (4). A dust removal pipe (7) is fixedly connected to the end of the dust collector (6) away from the end of the dust removal pipe (5). A collection box (8) is fixedly connected to the end of the dust removal pipe (7) away from the end of the dust collector (6). A dust discharge hole (9) is provided at the bottom of the collection box (8).

2. The tightening electric spindle according to claim 1, characterized in that: The bottom of the body (1) is fixedly connected to a heat sink (10), the inner wall of the heat sink (10) is fixedly connected to a filter screen (11), and the inner wall of the heat sink (10) is fixedly connected to a fan (12) near the filter screen (11).

3. A retractable electric spindle according to claim 2, characterized in that: The machine body (1) is fixedly connected to a bearing (13), and an oil injection valve (14) is provided at the top of the bearing (13).

4. A retractable electric spindle according to claim 3, characterized in that: A main shaft (15) is fixedly connected to the inner wall of the bearing (13), and a motor (16) is fixedly connected to the end of the main shaft (15) away from the bearing (13).

5. A retractable electric spindle according to claim 2, characterized in that: The outer surface of the main shaft (15) is provided with a rotor (17), and the outer surface of the rotor (17) is provided with a stator (18).

6. A retractable electric spindle according to claim 1, characterized in that: A dust baffle (19) is fixedly connected to the inner wall of the body (1) near the bearing (13).

7. A retractable electric spindle according to claim 1, characterized in that: The top of the main shaft (15) is provided with a bayonet (20).

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