Adjustable electric spindle

Abstract

The utility model discloses an adjustable motorized spindle, which relates to the field of engineering part structures and comprises a motor main body, bearings matched with a spindle are arranged at two ends of the motor main body, a heat conducting plate is arranged on one side of a second radiating fin, and the heat conducting plate extends to the motor main body to be connected with a heat conducting disc. And a plurality of first heat dissipation fins are arranged on one surface, far away from the motor main body, of the heat conduction disc. The bearings matched with the main shaft are arranged at the two ends of the motor main body, so that the stable operation of the main shaft is ensured. Meanwhile, a pair of second heat dissipation fins are symmetrically arranged on the two sides in the motor body, heat is transmitted to a heat conduction disc outside the motor body through a heat conduction plate, a plurality of first heat dissipation fins are arranged on the heat conduction disc, and meanwhile extension shells are arranged on the two sides of the motor body in cooperation with a heat dissipation fan. And the filter screen is arranged at one end far away from the motor main body, so that dust and other impurities are prevented from entering the motor to influence the heat dissipation effect and the motor performance.

Description

Technical Field

[0001] The utility model relates to a field, in particular to an adjustable electric spindle. Background Art

[0002] The electric spindle (Electric Spindle, Motor Spindle) is an innovative technology in the field of CNC machine tools. It integrates the machine tool spindle and the spindle motor to form a new transmission structure. The electric spindle directly uses the rotor of the motor as the spindle of the machine tool. The housing of the spindle unit is the motor base. The motor and the machine tool spindle are integrated by cooperating with other components. This structural form makes the spindle component relatively independent from the transmission system and overall structure of the machine tool, forming an independent "spindle unit". The components of the electric spindle include the electric spindle itself, high-frequency frequency conversion device, oil mist lubricator, cooling device, built-in encoder, tool changing device, etc.

[0003] Because the motor is used to directly drive the spindle to rotate, and then drive the device to rotate, but in actual use, due to the high-speed rotation of the spindle, friction and other reasons will cause the spindle to generate a lot of heat, which will affect the operating efficiency and accuracy of the motor, and may even cause damage to the motor.

[0004] Traditional electric spindle heat dissipation generally has a fan at one end of the motor. The rotation of the spindle drives the fan to rotate, bringing out the heat inside the motor and achieving cooling inside the motor. However, during actual use, the motor continuously dissipates heat and the fan draws out the hot air. Traditional motors may not be able to take away the heat in time due to insufficient air intake, causing the motor temperature to continue to rise. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an adjustable electric spindle to solve the technical problem.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable electric spindle, comprising a motor body, a spindle is arranged through the motor body, bearings are arranged at both ends of the motor body to cooperate with the spindle, a pair of second heat dissipation fins are symmetrically arranged on both sides of the motor body, a heat conduction plate is arranged on one side of the second heat dissipation fin, the heat conduction plate extends to the motor body to connect the heat conduction disk, and a plurality of first heat dissipation fins are arranged on a surface of the heat conduction disk away from the motor body.

[0007] By adopting the above technical solution, the motor drives the main shaft to rotate through the main shaft set up by the motor, and cooperates with the bearing to improve the smoothness of the main shaft rotation. The heat in the motor body is output to the heat conducting plate through the second heat dissipation fin and then output by the first heat dissipation fin.

[0008] The present utility model is further configured such that a first cooling fan is provided at one end of the main shaft outside the motor body.

[0009] By adopting the above technical solution, the first cooling fan drives the air flow to achieve the cooling effect.

[0010] The present utility model is further configured such that a second cooling fan is provided at one end of the main shaft away from the first cooling fan.

[0011] By adopting the above technical solution, the second cooling fan assists the first fan to drive the air flow to ensure the air flow inside the device.

[0012] The present utility model is further configured such that a first extended housing is provided on one side of the motor body close to the second cooling fan to cooperate with the second cooling fan.

[0013] By adopting the above technical solution, the second cooling fan is protected by the provided first extended housing.

[0014] The present utility model is further configured such that a second extended housing is provided on one side of the motor body close to the first cooling fan to cooperate with the first cooling fan.

[0015] By adopting the above technical solution, the first cooling fan is protected by the provided second extended housing.

[0016] The present utility model is further configured such that a partition is provided on the inner wall of the motor body in cooperation with the inner wall of the motor body for one week. The space between the partition and the inner wall of the motor body is a ventilation groove. An air inlet is provided at one end of the ventilation groove close to the second cooling fan, and an air outlet is provided at one end of the ventilation groove close to the first cooling fan.

[0017] By adopting the above technical solution, through the provided partition, the air inhaled by the second cooling fan is inhaled from the air inlet and cooperates with the first cooling fan to discharge the heat from the air outlet through the second cooling fan.

[0018] The present utility model is further configured such that a filter screen is provided at one end of the first extended housing away from the motor body.

[0019] By adopting the above technical solution, the air inhaled by the second cooling fan is filtered by the provided filter screen to prevent dust from adhering to the main shaft and affecting the operation of the main shaft.

[0020] In summary, the present utility model mainly has the following beneficial effects:

[0021] The utility model is provided with bearings at both ends of the motor main body in cooperation with the main shaft to ensure the stable operation of the main shaft. At the same time, a pair of second heat dissipation fins are symmetrically arranged on both sides inside the motor main body. Heat is transferred to the heat conduction plate outside the motor main body through the heat conduction plate, and a number of first heat dissipation fins are arranged on the heat conduction plate to increase the heat dissipation area and improve the heat dissipation efficiency. At the same time, the electric main shaft is also provided with a first heat dissipation fan and a second heat dissipation fan at both ends of the main shaft respectively, forming a double-end heat dissipation system, which further enhances the heat dissipation effect. At the same time, extension shells are arranged on both sides of the motor main body in cooperation with the heat dissipation fans, and a filter screen is arranged at one end far from the motor main body to prevent impurities such as dust from entering the motor and affecting the heat dissipation effect and the performance of the motor. Brief Description of the Drawings

[0022] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 is a schematic diagram of the internal structure of the second extension shell of the utility model;

[0024] Figure 3 is a schematic diagram of the overall internal structure of the utility model;

[0025] Figure 4 is a side sectional view of the internal structure of the motor main body of the utility model;

[0026] Figure 5 is a transverse sectional view of the internal structure of the motor main body of the utility model.

[0027] In the figure: 1. Motor main body; 2. First extension shell; 3. Second extension shell; 4. Main shaft; 5. First heat dissipation fin; 6. Air inlet; 7. Second heat dissipation fin; 8. Ventilation groove; 9. Bearing; 10. First heat dissipation fan; 11. Air outlet; 12. Partition board; 13. Filter screen; 14. Second heat dissipation fan; 15. Heat conduction plate; 16. Heat conduction plate. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0029] Next, the embodiments of the present utility model will be described according to its overall structure.

[0030] An adjustable electric main shaft, as Figures 1-5As shown in the figure, it includes a motor main body 1. A main shaft 4 is disposed through the motor main body 1. At both ends of the motor main body 1, bearings 9 are arranged in cooperation with the main shaft 4. On both sides inside the motor main body 1, a pair of second heat dissipation fins 7 are symmetrically arranged. On one side of the second heat dissipation fins 7, a heat conduction plate 15 is provided. The heat conduction plate 15 extends to the motor main body 1 and is connected to a heat conduction disc 16. On the side of the heat conduction disc 16 away from the motor main body 1, a number of first heat dissipation fins 5 are arranged. A first heat dissipation fan 10 is arranged outside the motor main body 1 in cooperation with the first heat dissipation fins 5. At one end of the main shaft 4 outside the motor main body 1, a first heat dissipation fan 10 is provided. The rotation of the main shaft 4 drives the first heat dissipation fan 10 to rotate. In cooperation with this, a second heat dissipation fan 14 is provided at one end of the main shaft 4 away from the first heat dissipation fan 10. The second heat dissipation fan 14 rotates in the same way as the first heat dissipation fan 10 through the rotation of the main shaft 4. The first heat dissipation fan 10 and the second heat dissipation fan 14 are set to rotate in the same direction, that is, the air blowing and suction ends are the same;

[0031] On one side of the motor main body 1 close to the second heat dissipation fan 14, a first extension housing 2 is arranged in cooperation with the second heat dissipation fan 14. On one side of the motor main body 1 close to the first heat dissipation fan 10, a second extension housing 3 is arranged in cooperation with the first heat dissipation fan 10. The second heat dissipation fan 14 is protected by the first extension housing 2, and the first heat dissipation fan 10 is protected by the provided second extension housing 3.

[0032] On the basis of the above structure, a partition 12 is arranged around the inside of the motor main body 1 in cooperation with the inner wall of the motor main body 1. The space between the partition 12 and the inner wall of the motor main body 1 is a ventilation groove 8. An air inlet 6 is opened at one end of the ventilation groove 8 close to the second heat dissipation fan 14, and an air outlet 11 is opened at one end of the ventilation groove 8 close to the first heat dissipation fan 10. In this way, the second heat dissipation fan 14 drives external air to enter the ventilation groove 8 through the air inlet 6 and then is discharged from the air outlet 11. While reducing the temperature of the inner wall of the motor main body 1, the heat dissipation efficiency of the first heat dissipation fins 5 is accelerated, preventing the motor temperature from being too high.

[0033] At the same time, a filter screen 13 is arranged at one end of the first extension housing 2 away from the motor main body 1. The air inhaled by the second heat dissipation fan 14 is filtered through the filter screen to prevent a large amount of dust in the air from adhering to the main shaft and affecting the operation of the main shaft.

[0034] Although embodiments of the present utility model have been shown and described, the specific embodiments are merely explanations of the present utility model and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. An adjustable electric spindle, comprising a motor body (1), characterized in that: A main shaft (4) is provided through the motor body (1), bearings (9) are provided at both ends of the motor body (1) to match the main shaft (4), a pair of second heat dissipation fins (7) are symmetrically provided on both sides of the motor body (1), a heat conduction plate (15) is provided on one side of the second heat dissipation fin (7), the heat conduction plate (15) extends to the motor body (1) and is connected to a heat conduction disk (16), and a plurality of first heat dissipation fins (5) are provided on a side of the heat conduction disk (16) away from the motor body (1).

2. The adjustable electric spindle according to claim 1, characterized in that: A first cooling fan (10) is provided at one end of the main shaft (4) outside the motor body (1).

3. The adjustable electric spindle according to claim 1, characterized in that: A second cooling fan (14) is arranged on one end of the main shaft (4) away from the first cooling fan (10).

4. The adjustable electric spindle according to claim 1, characterized in that: A first extension housing (2) is provided on one side of the motor body (1) close to the second cooling fan (14) to cooperate with the second cooling fan (14).

5. The adjustable electric spindle according to claim 1, characterized in that: A second extension housing (3) is provided on one side of the motor body (1) close to the first cooling fan (10) in cooperation with the first cooling fan (10).

6. The adjustable electric spindle according to claim 1, characterized in that: A partition (12) is arranged around the motor body (1) to cooperate with the inner wall of the motor body (1); the space between the partition (12) and the inner wall of the motor body (1) is a ventilation groove (8); an air inlet (6) is provided at one end of the ventilation groove (8) close to the second cooling fan (14); and an air outlet (11) is provided at one end of the ventilation groove (8) close to the first cooling fan (10).

7. The adjustable electric spindle according to claim 1, characterized in that: A filter screen (13) is provided at one end of the first extension housing (2) away from the motor body (1).

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