Asynchronous electric spindle

Abstract

The utility model discloses an asynchronous electric spindle, comprising an outer shaft shell, a spacer seat is arranged on the outer wall of the outer shaft shell, two serpentine cooling channels are arranged on the inner side of the spacer seat, an upper cover plate is installed on the top of the outer shaft shell, a first locking bolt with equal spacing is installed at the edge position of the top of the upper cover plate, the bottom end of the first locking bolt passes through the upper cover plate and is threadedly connected with the top of the outer shaft shell, an upper connecting seat is arranged at the center position of the top of the upper cover plate, a connecting head is arranged at the center position of the top of the upper connecting seat, a second upper flange is arranged at one end of the connecting head away from the upper connecting seat, a first upper flange is arranged on the inner wall of the second upper flange, a lower flange is fixed on the outer wall of the lower end of the outer shaft shell, and a lower cover plate is arranged at the bottom end of the lower flange. The utility model not only achieves the purpose of water cooling the asynchronous electric spindle to extend the service life of the asynchronous electric spindle, but also achieves the purpose of facilitating the installation and connection of the asynchronous electric spindle, and is easy to disassemble and maintain the asynchronous electric spindle.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindles, in particular to an asynchronous electric spindle. Background Art

[0002] The electric spindle is a new technology that has emerged in the field of CNC machine tools, integrating the machine tool spindle and the spindle motor. It is a type of component that connects the machine tool spindle with the motor spindle. With the rapid development of various industries, people's requirements for electric spindles are getting higher and higher.

[0003] Reference publication number CN218425638U discloses an asynchronous electric spindle for machine tools, which includes a cylindrical base, a stator pressed into the base, and a rotor arranged in the stator, wherein the rotor includes a hollow rotor shaft, and the stator includes a stator core fixedly connected to the base and a winding arranged on the stator core. Both ends of the base are fixed with a sheath made of an insulating material, and the axes of the sheath and the base are arranged in parallel; the stator is located between the two sheaths, and both adjacent sides of the two sheaths form an annular groove coaxial with the sheath, and the annular groove is formed by The machine tool comprises an asynchronous electric spindle which is a closed annular groove side wall 1 and a closed groove side wall 2 and a groove bottom wall between the groove side wall 1 and the groove side wall 2. The two ends of the winding are respectively inserted into the two annular grooves. At least one of the annular grooves has a groove bottom wall through which a wire hole is provided for the winding cable to pass through. The asynchronous electric spindle for this machine tool has high safety. According to the above, although the asynchronous electric spindle can be well applied, it is usually not convenient for efficient water cooling, which makes the asynchronous electric spindle prone to high temperature, thereby affecting its service life and often troubling people. Utility Model Content

[0004] The purpose of the utility model is to provide an asynchronous electric spindle to solve the problem in the above background technology that although the asynchronous electric spindle can be well applied, it is usually not convenient to carry out efficient water cooling, which makes the asynchronous electric spindle easily in a high temperature state, thereby affecting its service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an asynchronous electric spindle, comprising an outer shaft shell, a spacer seat is provided on the outer wall of the outer shaft shell, two serpentine cooling channels are provided on the inner side of the spacer seat, an upper cover plate is installed at the top of the outer shaft shell, and a first locking bolt with equal spacing is installed at the edge position of the top of the upper cover plate, the bottom end of the first locking bolt passes through the upper cover plate and is threadedly connected with the top of the outer shaft shell, an upper connecting seat is provided at the center position of the top of the upper cover plate, a connecting head is provided at the center position of the top of the upper connecting seat, a second upper flange is provided at one end of the connecting head away from the upper connecting seat, a first upper flange is provided on the inner wall of the second upper flange, a lower flange is fixed on the outer wall of the lower end of the outer shaft shell, a lower cover plate is provided at the bottom end of the lower flange, a lower connecting seat is installed at one end of the lower cover plate away from the outer shaft shell, an end cover is installed at the bottom end of the lower connecting seat, a rotating shaft is provided inside the outer shaft shell, the top end of the rotating shaft extends to the inside of the connecting head, and the bottom end of the rotating shaft passes through the outside of the end cover.

[0006] Preferably, a clamp is installed on the outer wall of the lower end of the connector, and the bottom end of the clamp touches the top end of the upper connector. The clamp is arranged so that the connector can be installed on the outer wall of the rotating shaft.

[0007] Preferably, a second locking bolt is installed on the outer wall of the clamp, and one end of the second locking bolt is threadedly connected to the outer wall of the rotating shaft. The second locking bolt is provided so that the clamp can be installed on the outer wall of the connecting head.

[0008] Preferably, the top of the first upper flange is provided with second positioning holes with equal intervals, the bottom ends of the second positioning holes penetrate to the outside of the second upper flange, and the top of the first upper flange between adjacent second positioning holes is provided with three first positioning holes, the bottom ends of the first positioning holes penetrate to the outside of the second upper flange, and the second positioning holes and the first positioning holes are arranged so that the first upper flange can be connected to the external main shaft.

[0009] Preferably, third positioning holes with equal spacing are provided at the edge of the second upper flange, and both ends of the third positioning holes extend to the outside of the second upper flange. The third positioning holes are provided so that the second upper flange can be connected to the external main shaft.

[0010] Preferably, the bottom end of the lower connecting seat is installed with third locking bolts with equal spacing, and the top end of the third locking bolt is threadedly connected to the bottom end of the lower cover plate. The third locking bolt is arranged so that the lower connecting seat can be installed on the bottom end of the lower cover plate.

[0011] Preferably, the bottom end of the end cover is installed with first locking screws with equal spacing, and the top end of the first locking screw is threadedly connected to the bottom end of the lower connecting seat. The end cover can be installed on the bottom end of the lower connecting seat through the setting of the first locking screw.

[0012] Preferably, a second locking screw is installed at an equal interval at the bottom end of the end cover outside the first locking screw, and the top end of the second locking screw is threadedly connected to the bottom end of the lower connecting seat. The second locking screw is arranged so that the end cover can be installed on the bottom end of the lower connecting seat.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the asynchronous electric spindle not only achieves the purpose of water cooling the asynchronous electric spindle to extend the service life of the asynchronous electric spindle, but also achieves the purpose of facilitating the installation and connection of the asynchronous electric spindle, and is easy to disassemble and maintain the asynchronous electric spindle;

[0014] (1) By arranging the spacer seat on the outer wall of the outer shaft shell, two groups of serpentine cooling channels can be arranged on the outer side of the outer shaft shell. When the shaft sleeve is mounted on the outer wall of the outer shaft shell, the coolant is injected from one end of the serpentine cooling channel, and the coolant circulates in the serpentine cooling channel and is discharged from the other end of the serpentine cooling channel, so as to achieve the purpose of water cooling the asynchronous electric spindle, thereby reducing the high temperature state of the asynchronous electric spindle, thereby extending the service life of the asynchronous electric spindle;

[0015] (2) By setting the lower flange, the second upper flange and the first upper flange, and setting the third positioning hole, the first positioning hole and the second positioning hole inside the second upper flange and the first upper flange respectively, and setting the connecting hole inside the lower flange, the asynchronous electric spindle can be connected to the machine tool spindle and the motor spindle by means of bolts, thereby achieving the purpose of facilitating the installation and connection of the asynchronous electric spindle;

[0016] (3) By screwing out one end of the second locking bolt to the outside of the rotating shaft and the connecting head, the clamp can be detached from the outer wall of the connecting head, and the connecting head can be detached from the top of the upper connecting seat. Then, by screwing out the third locking bolt to the outside of the lower cover plate, and screwing out the first locking screw and the second locking screw to the outside of the lower connecting seat, the end cover can be detached from the bottom end of the lower connecting seat, and the lower connecting seat can be detached from the bottom end of the lower cover plate, thereby facilitating the disassembly and maintenance of the asynchronous electric spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0020] Figure 4 It is a side structural schematic diagram of the utility model.

[0021] In the figure: 1. outer shaft housing; 2. spacer seat; 3. serpentine cooling channel; 4. upper cover; 5. first locking bolt; 6. upper connecting seat; 7. connecting head; 8. clamp; 9. second locking bolt; 10. rotating shaft; 11. first upper flange; 1101. first positioning hole; 1102. second positioning hole; 12. second upper flange; 1201. third positioning hole; 13. lower flange; 14. lower cover; 15. lower connecting seat; 16. third locking bolt; 17. end cover; 1701. first locking screw; 1702. second locking screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: an asynchronous electric spindle, comprising an outer shaft housing 1, a spacer seat 2 is provided on the outer wall of the outer shaft housing 1, two serpentine cooling channels 3 are provided on the inner side of the spacer seat 2, an upper cover plate 4 is installed at the top of the outer shaft housing 1, and first locking bolts 5 with equal spacing are installed at the edge position of the top of the upper cover plate 4, and the bottom end of the first locking bolt 5 passes through the upper cover plate 4 and is threadedly connected with the top of the outer shaft housing 1;

[0024] An upper connecting seat 6 is provided at the center position of the top of the upper cover plate 4, a connecting head 7 is provided at the center position of the top of the upper connecting seat 6, a clamp 8 is installed on the outer wall of the lower end of the connecting head 7, and the bottom end of the clamp 8 touches the top end of the upper connecting seat 6;

[0025] When in use, the clamp 8 is arranged so as to mount the connector 7 on the outer wall of the rotating shaft 10;

[0026] A second locking bolt 9 is installed on the outer wall of the hoop 8, and one end of the second locking bolt 9 is threadedly connected to the outer wall of the rotating shaft 10;

[0027] When in use, the second locking bolt 9 is arranged so as to install the clamp 8 on the outer wall of the connector 7;

[0028] A second upper flange 12 is provided at one end of the connector 7 away from the upper connector 6. Third positioning holes 1201 are provided at equal intervals at the inner edge of the second upper flange 12. Both ends of the third positioning holes 1201 extend to the outside of the second upper flange 12.

[0029] When in use, the third positioning hole 1201 is provided so as to be connected to the external main shaft by the second upper flange 12;

[0030] The first upper flange 11 is provided on the inner wall of the second upper flange 12, and the top of the first upper flange 11 is provided with second positioning holes 1102 with equal intervals, and the bottom ends of the second positioning holes 1102 penetrate to the outside of the second upper flange 12, and the top of the first upper flange 11 between adjacent second positioning holes 1102 is provided with three first positioning holes 1101, and the bottom ends of the first positioning holes 1101 penetrate to the outside of the second upper flange 12;

[0031] When in use, the second positioning hole 1102 and the first positioning hole 1101 are arranged so as to be connected to the external main shaft by the first upper flange 11;

[0032] A lower flange 13 is fixed on the outer wall of the lower end of the outer shaft housing 1, a lower cover plate 14 is provided at the bottom end of the lower flange 13, a lower connecting seat 15 is installed at one end of the lower cover plate 14 away from the outer shaft housing 1, and third locking bolts 16 with equal spacing are installed at the bottom end of the lower connecting seat 15, and the top end of the third locking bolts 16 is threadedly connected to the bottom end of the lower cover plate 14;

[0033] When in use, the third locking bolt 16 is provided so as to install the lower connecting seat 15 on the bottom end of the lower cover plate 14;

[0034] The bottom end of the lower connecting seat 15 is installed with an end cover 17, and the bottom end of the end cover 17 is installed with first locking screws 1701 with equal spacing, and the top end of the first locking screws 1701 is threadedly connected to the bottom end of the lower connecting seat 15;

[0035] When in use, the end cover 17 is installed on the bottom end of the lower connecting seat 15 by setting the first locking screw 1701;

[0036] The bottom end of the end cover 17 outside the first locking screw 1701 is installed with a second locking screw 1702 at an equal interval, and the top end of the second locking screw 1702 is threadedly connected to the bottom end of the lower connecting seat 15;

[0037] When in use, the end cover 17 is installed on the bottom end of the lower connecting seat 15 by setting the second locking screw 1702;

[0038] A rotating shaft 10 is disposed inside the outer shaft housing 1 , the top end of the rotating shaft 10 extends to the inside of the connector 7 , and the bottom end of the rotating shaft 10 passes through the outside of the end cover 17 .

[0039] When the embodiment of the present application is in use, first, through the arrangement of the lower flange 13, the second upper flange 12 and the first upper flange 11, and the third positioning hole 1201, the first positioning hole 1101, and the second positioning hole 1102 are respectively arranged inside the second upper flange 12 and the first upper flange 11, and the connecting hole is arranged inside the lower flange 13, the asynchronous electric spindle can be connected to the machine tool spindle and the motor spindle mounting part with the help of bolts, so that when the motor spindle is running, the machine tool spindle is driven to rotate by the asynchronous electric spindle, and then through the arrangement of two groups of serpentine cooling channels 3, when the sleeve is mounted on the outer wall of the outer shaft housing 1, the coolant is injected from one end of the serpentine cooling channel 3, and the coolant will circulate in the serpentine cooling channel 3 After moving, it is discharged from the other end of the serpentine cooling channel 3 to achieve the purpose of water cooling the asynchronous electric spindle. Finally, by screwing one end of the second locking bolt 9 to the outside of the rotating shaft 10 and the connecting head 7, the clamp 8 can be removed from the outer wall of the connecting head 7, and the connecting head 7 can be removed from the top of the upper connecting seat 6, and then by screwing the third locking bolt 16 to the outside of the lower cover plate 14, and screwing the first locking screw 1701 and the second locking screw 1702 to the outside of the lower connecting seat 15, the end cover 17 can be removed from the bottom end of the lower connecting seat 15, and the lower connecting seat 15 can be removed from the bottom end of the lower cover plate 14, so that the asynchronous electric spindle can be disassembled and maintained, thereby completing the use of the asynchronous electric spindle.

Claims

1. An asynchronous electric spindle, characterized in that: The invention comprises an outer shaft shell (1), wherein a spacer seat (2) is provided on the outer wall of the outer shaft shell (1), and two serpentine cooling channels (3) are provided on the inner side of the spacer seat (2); an upper cover plate (4) is installed at the top end of the outer shaft shell (1), and first locking bolts (5) are installed at equal intervals at the edge position of the top end of the upper cover plate (4), and the bottom end of the first locking bolt (5) passes through the upper cover plate (4) and is threadedly connected to the top of the outer shaft shell (1); an upper connecting seat (6) is provided at the center position of the top of the upper cover plate (4), and a connecting head (7) is provided at the center position of the top of the upper connecting seat (6), and the connecting head (7) is away from the upper connecting seat ( 6), a second upper flange (12) is provided at one end thereof, a first upper flange (11) is provided on the inner wall of the second upper flange (12), a lower flange (13) is fixed on the outer wall of the lower end of the outer shaft housing (1), a lower cover plate (14) is provided at the bottom end of the lower flange (13), a lower connecting seat (15) is installed at the end of the lower cover plate (14) away from the outer shaft housing (1), an end cover (17) is installed at the bottom end of the lower connecting seat (15), a rotating shaft (10) is provided inside the outer shaft housing (1), the top end of the rotating shaft (10) extends to the inside of the connecting head (7), and the bottom end of the rotating shaft (10) passes through to the outside of the end cover (17).

2. An asynchronous electric spindle according to claim 1, characterized in that: A clamp (8) is installed on the outer wall of the lower end of the connecting head (7), and the bottom end of the clamp (8) contacts the top end of the upper connecting seat (6).

3. An asynchronous electric spindle according to claim 2, characterized in that: A second locking bolt (9) is installed on the outer wall of the clamp (8), and one end of the second locking bolt (9) is threadedly connected to the outer wall of the rotating shaft (10).

4. The asynchronous electric spindle according to claim 1, characterized in that: The top of the first upper flange (11) is provided with second positioning holes (1102) at equal intervals, and the bottom ends of the second positioning holes (1102) extend through the outside of the second upper flange (12). The top of the first upper flange (11) between adjacent second positioning holes (1102) is provided with three first positioning holes (1101), and the bottom ends of the first positioning holes (1101) extend through the outside of the second upper flange (12).

5. The asynchronous electric spindle according to claim 1, characterized in that: Third positioning holes (1201) are provided at equal intervals at the edge of the second upper flange (12), and both ends of the third positioning holes (1201) extend to the outside of the second upper flange (12).

6. The asynchronous electric spindle according to claim 1, characterized in that: The bottom end of the lower connecting seat (15) is provided with third locking bolts (16) with equal spacing, and the top end of the third locking bolts (16) is threadedly connected to the bottom end of the lower cover plate (14).

7. The asynchronous electric spindle according to claim 1, characterized in that: The bottom end of the end cover (17) is provided with first locking screws (1701) with equal spacing, and the top end of the first locking screws (1701) is threadedly connected to the bottom end of the lower connecting seat (15).

8. An asynchronous electric spindle according to claim 7, characterized in that: A second locking screw (1702) with equal spacing is installed at the bottom end of the end cover (17) outside the first locking screw (1701), and the top end of the second locking screw (1702) is threadedly connected to the bottom end of the lower connecting seat (15).

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