High-power servo spindle mechanism

Abstract

The utility model discloses a high-power servo main shaft mechanism which comprises a servo motor shell, a main shaft device is installed in the middle of the right end of the servo motor shell, a heat dissipation device is installed on the outer surface of the main shaft device, and a connector is installed at the right end of the main shaft device. The main shaft device comprises a servo main shaft, a connecting shaft is fixedly installed at the right end of the servo main shaft, heat dissipation through openings are formed in the servo main shaft and the connecting shaft correspondingly, a set of air inlet holes are formed in the front end and the rear end of the servo main shaft correspondingly, and a reinforcing supporting plate is fixedly installed between the upper inner wall and the lower inner wall of the servo main shaft. According to the high-power servo main shaft mechanism, the heat dissipation through holes are formed in the servo main shaft and the connecting shaft, external air can enter the servo main shaft and the connecting shaft through the air inlet holes while the servo main shaft operates, and heat dissipation is conducted on the interior and the exterior of the servo main shaft at the same time in cooperation with the fan in the servo motor.

Description

Technical Field

[0001] The utility model relates to the technical field of servo motors, in particular to a high-power servo spindle mechanism. Background Art

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed change device that can control speed and position accuracy very accurately. It can convert voltage signals into torque and speed to drive the controlled object. The rotor speed of a servo motor is controlled by the input signal and can respond quickly. In automatic control systems, it is used as an actuator and has the characteristics of small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft.

[0003] The servo motor basically adopts a servo spindle mechanism, which is composed of a spindle servo power supply, a spindle motor, a spindle transmission system and a spindle assembly. The start, stop and speed change of the spindle are all controlled by the CNC system. However, the existing servo spindle will inevitably affect its operating efficiency due to overheating during long-term operation. Although a fan is installed in the servo motor for cooling, it cannot effectively dissipate the heat inside the spindle, resulting in low heat dissipation efficiency, which affects the use of the device. In summary, the existing servo spindle mechanism still has the following problems:

[0004] When the servo spindle is running for a long time, the temperature inside it will rise and accumulate heat, and the excessively high temperature will affect its use. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-power servo spindle mechanism, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A high-power servo spindle mechanism includes a servo motor housing, a spindle device is installed in the middle of the right end of the servo motor housing, a heat dissipation device is installed on the outer surface of the spindle device, and a connector is installed on the right end of the spindle device; the spindle device includes a servo spindle, a connecting shaft is fixedly installed on the right end of the servo spindle, heat dissipation openings are opened in the servo spindle and the connecting shaft, a group of air inlet holes are opened at the front and rear ends of the servo spindle, and a reinforcing support plate is fixedly installed between the upper inner wall and the lower inner wall of the servo spindle. The heat dissipation openings are opened in the servo spindle and the connecting shaft, and the external air can enter the servo spindle and the connecting shaft through the air inlet holes while the servo spindle is running, and cooperate with the fan in the servo motor, so that the servo spindle can dissipate heat inside and outside at the same time. In addition, the design of the internal slots of the servo spindle and the connecting shaft reduces the weight of the servo spindle, and the lighter weight further improves the operation efficiency of the servo spindle. At the same time, the reinforcing support plate designed in the servo spindle also ensures the stability of the servo spindle structure.

[0008] Preferably, the heat dissipation device includes a connecting ring, two of which are provided, a group of mounting seats are installed on the outer surface of the two connecting rings, a plurality of fan plates are installed between the two groups of mounting seats, and the two connecting rings are installed on the outer surface of the connecting shaft through the mounting seats. When the servo spindle drives the connecting shaft to rotate, the two connecting rings and the plurality of fan plates therebetween will also rotate accordingly, thereby generating a certain amount of air, accelerating the air circulation speed outside the connecting shaft, and further dissipating the heat of the connecting shaft.

[0009] Preferably, a mounting groove is provided at the right end of the connector.

[0010] Preferably, the two groups of air inlet holes are symmetrically distributed front to back with the reinforced support plate as the center.

[0011] Preferably, a plurality of the fan plates are distributed in a circular array between the two groups of mounting seats.

[0012] Preferably, the fan plate is trapezoidal in shape, and the fan plate is attached to the outer surface of the connecting shaft.

[0013] Preferably, there is a gap between the connecting ring and the connecting shaft.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The servo spindle and the connecting shaft on the spindle device are provided with heat dissipation holes. When the servo spindle is running, the external air can enter the servo spindle and the connecting shaft through the air inlet holes, thereby effectively and quickly dissipating the heat inside the servo spindle. Combined with the fan in the servo motor, the heat is dissipated inside and outside the servo spindle at the same time. In addition, the design of the internal slots of the servo spindle and the connecting shaft reduces the weight of the servo spindle. The lighter weight further improves the operating efficiency of the servo spindle. At the same time, the reinforced support plate designed in the servo spindle also ensures the stability of the servo spindle structure and improves the practicality of the device.

[0016] 2. The two connecting rings on the heat dissipation device are fixed to the outer surface of the connecting shaft by the mounting base thereon. When the servo spindle drives the connecting shaft to rotate, the two connecting rings and several fan plates therebetween will also rotate accordingly, thereby generating a certain amount of air, accelerating the air circulation speed outside the connecting shaft, and further dissipating the heat of the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-power servo spindle mechanism of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of a spindle device of a high-power servo spindle mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of a heat dissipation device for a high-power servo spindle mechanism of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the overall structure of a connector of a high-power servo spindle mechanism.

[0021] In the figure: 1. servo motor housing; 2. spindle device; 3. heat dissipation device; 4. connector; 20. servo spindle; 21. connecting shaft; 22. heat dissipation vent; 23. air inlet; 24. reinforced support plate; 30. connecting ring; 31. mounting seat; 32. fan plate; 40. mounting groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-4 As shown, a high-power servo spindle mechanism includes a servo motor housing 1, a spindle device 2 is installed in the middle of the right end of the servo motor housing 1, a heat dissipation device 3 is installed on the outer surface of the spindle device 2, and a connector 4 is installed on the right end of the spindle device 2; the spindle device 2 includes a servo spindle 20, a connecting shaft 21 is fixedly installed on the right end of the servo spindle 20, and heat dissipation holes 22 are opened in the servo spindle 20 and the connecting shaft 21, a group of air inlet holes 23 are opened at the front and rear ends of the servo spindle 20, and a reinforcing support plate 24 is fixedly installed between the upper inner wall and the lower inner wall of the servo spindle 20; the two groups of air inlet holes 23 are symmetrically distributed front and back with the reinforcing support plate 24 as the center. The servo spindle 20 and the connecting shaft 21 are both provided with heat dissipation openings 22. When the servo spindle 20 is running, external air can enter the servo spindle 20 and the connecting shaft 21 through the air inlet holes 23, and cooperate with the fan in the servo motor to dissipate heat inside and outside the servo spindle 20 at the same time. In addition, the internal slots of the servo spindle 20 and the connecting shaft 21 reduce the weight of the servo spindle 20. The lighter weight further improves the operating efficiency of the servo spindle 20. At the same time, the reinforced support plate 24 designed in the servo spindle 20 also ensures the stability of the servo spindle 20 structure.

[0026] The heat dissipation device 3 includes a connecting ring 30, two connecting rings 30 are provided, a group of mounting seats 31 are installed on the outer surface of the two connecting rings 30, a number of fan plates 32 are installed between the two groups of mounting seats 31, and the two connecting rings 30 are installed on the outer surface of the connecting shaft 21 through the mounting seats 31; the number of fan plates 32 are distributed in a ring array between the two groups of mounting seats 31; the fan plates 32 are trapezoidal in shape, and the fan plates 32 are attached to the outer surface of the connecting shaft 21; there is a gap between the connecting ring 30 and the connecting shaft 21. When the servo spindle 20 drives the connecting shaft 21 to rotate, the two connecting rings 30 and the number of fan plates 32 therebetween will also rotate, thereby generating a certain amount of air, accelerating the air circulation speed outside the connecting shaft 21, and further dissipating the heat of the connecting shaft 21.

[0027] The right end of the connector 4 is provided with a mounting groove 40 .

[0028] It should be noted that the utility model is a high-power servo spindle mechanism, through the servo spindle 20 and the connecting shaft 21 on the spindle device 2 are provided with heat dissipation holes 22, while the servo spindle 20 is running, the external air can enter the servo spindle 20 and the connecting shaft 21 through the air inlet hole 23, and then the inside of the servo spindle 20 can be effectively and quickly cooled, and then cooperate with the fan in the servo motor, so that the inside and outside of the servo spindle 20 can be cooled at the same time. In addition, the design of the internal slots of the servo spindle 20 and the connecting shaft 21 reduces the weight of the servo spindle 20, which is lighter. The weight further improves the operating efficiency of the servo spindle 20. At the same time, the reinforced support plate 24 designed in the servo spindle 20 also ensures the stability of the servo spindle 20 structure and improves the practicability of the device. The two connecting rings 30 on the heat dissipation device 3 are fixed to the outer surface of the connecting shaft 21 by the mounting seat 31 thereon. When the servo spindle 20 drives the connecting shaft 21 to rotate, the two connecting rings 30 and the several fan plates 32 therebetween will also rotate accordingly, thereby generating a certain amount of air, accelerating the air circulation speed outside the connecting shaft 21, and further dissipating the heat of the connecting shaft 21.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-power servo spindle mechanism, comprising a servo motor housing (1), characterized in that: A spindle device (2) is installed in the middle of the right end of the servo motor housing (1), a heat dissipation device (3) is installed on the outer surface of the spindle device (2), and a connector (4) is installed on the right end of the spindle device (2); the spindle device (2) comprises a servo spindle (20), a connecting shaft (21) is fixedly installed on the right end of the servo spindle (20), a heat dissipation opening (22) is provided in the servo spindle (20) and the connecting shaft (21), a group of air inlet holes (23) are provided at the front end and the rear end of the servo spindle (20), and a reinforcing support plate (24) is fixedly installed between the upper inner wall and the lower inner wall of the servo spindle (20).

2. A high-power servo spindle mechanism according to claim 1, characterized in that: The heat dissipation device (3) comprises a connecting ring (30), wherein two connecting rings (30) are provided, a group of mounting seats (31) are installed on the outer surface of the two connecting rings (30), a plurality of fan plates (32) are installed between the two groups of mounting seats (31), and the two connecting rings (30) are installed on the outer surface of the connecting shaft (21) through the mounting seats (31).

3. A high-power servo spindle mechanism according to claim 1, characterized in that: The right end of the connector (4) is provided with a mounting groove (40).

4. The high-power servo spindle mechanism according to claim 1, characterized in that: The two groups of air inlet holes (23) are symmetrically distributed front and back with the reinforcing support plate (24) as the center.

5. The high-power servo spindle mechanism according to claim 2, characterized in that: A plurality of the fan plates (32) are distributed in a ring array between the two groups of mounting seats (31).

6. The high-power servo spindle mechanism according to claim 2, characterized in that: The fan plate (32) is trapezoidal in shape, and the fan plate (32) is fitted on the outer surface of the connecting shaft (21).

7. A high-power servo spindle mechanism according to claim 2, characterized in that: There is a gap between the connecting ring (30) and the connecting shaft (21).

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