High-performance ultra-high-speed air floatation electric spindle with built-in empennage

Abstract

The utility model discloses a high-performance superspeed air floatation electric spindle with a built-in empennage, which comprises a spindle body, an auxiliary component I is arranged on the spindle body, an auxiliary component II is arranged at one end of a connecting screw rod, and a mounting component is mounted on the inner wall of the auxiliary component II. Auxiliary cooling treatment can be conducted on the ultra-high-speed air-floating electric spindle, the dynamic performance of the ultra-high-speed air-floating electric spindle is improved, airflow flowing is increased, meanwhile, the fixing and positioning effects of a grinding wheel connecting rod can be enhanced when the electric spindle rotates at a high speed through a limiting assembly arranged on the mounting assembly, it is guaranteed that looseness cannot occur in high-speed rotation, and the service life of the grinding wheel connecting rod is prolonged. Meanwhile, the second auxiliary assembly is arranged on the first auxiliary assembly, the stability of the motorized spindle can be enhanced, in addition, the disc spring assembly provides pre-tightening force for the chuck, meanwhile, vibration in the operation process is reduced, meanwhile, the mounting assembly is arranged on the second auxiliary assembly and used for locking the grinding wheel connecting rod, and stable operation of the grinding wheel connecting rod can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindles, in particular to a high-performance ultra-high-speed air-floating electric spindle with a built-in tail wing. Background Art

[0002] High-performance ultra-high-speed air-bearing electric spindle is a highly specialized mechanical equipment. Ultra-high-speed air-bearing electric spindle is widely used in grinding and drilling tiny holes. These products have extremely high requirements on the dynamic performance of the spindle, such as speed, rigidity and vibration.

[0003] However, the ultra-high-speed air-floating electric spindle cannot be subjected to auxiliary cooling treatment during use, which can easily affect the performance of the high-speed air-floating electric spindle. When the ultra-high-speed air-floating electric spindle is actually used, the grinding wheel connecting rod rotates at high speed, resulting in poor stability and accuracy, which affects the use effect of the grinding wheel.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In response to the problems in the related art, the present invention proposes a high-performance ultra-high-speed air-bearing electric spindle with a built-in tail wing to overcome the above-mentioned technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail fin comprises a shaft body, an auxiliary component 1 being provided on the shaft body, the auxiliary component 1 comprising an axial hole formed in the shaft body, a vortex tail fin provided on the inner wall of the axial hole, an anti-loosening screw provided on the inner wall of the vortex tail fin, one end of the anti-loosening screw being connected to a connecting screw, and one end of the connecting screw being provided with an auxiliary component 2;

[0008] An installation component is installed on the inner wall of auxiliary component two, and a limiting component is provided on the installation component. The limiting component includes multiple limiting holes opened on the surface of the installation component. A spring-set telescopic rod is fixedly provided on the inner wall of the limiting hole. One end of the spring-set telescopic rod is fixedly connected to a limiting block, and one end of the limiting block is in contact with the inner wall of auxiliary component two.

[0009] Furthermore, in order to better install the mounting assembly, auxiliary assembly 2 includes a spring chuck fixedly arranged at one end of the connecting screw, one end surface of the spring chuck contacts the inner wall of the tapered hole of the axial hole, a limiting groove is provided on the inner wall of the spring chuck, the inner wall of the limiting groove contacts one end of the limiting block, and a disc spring assembly is provided on the other end surface of the spring chuck, the surface of the disc spring assembly contacts the inner wall of the axial hole and one side of the vortex tail.

[0010] Furthermore, in order to better install the grinding wheel connecting rod and facilitate the subsequent use of the grinding wheel, the installation assembly includes a grinding wheel connecting rod installed on the inner wall of the spring chuck, one end of the grinding wheel connecting rod is provided with a shaft head, and one end of the shaft head is installed with a fixed grinding wheel.

[0011] Furthermore, in order to improve the high temperature resistance and wear resistance of the vortex tail, the surface of the vortex tail is provided with a high temperature resistant layer and a wear resistant layer in sequence.

[0012] Furthermore, a plurality of vortex grooves are provided on the outside of the vortex tail, and an exhaust groove is provided at one end of the vortex tail.

[0013] Furthermore, an end of the vortex tail wing away from the exhaust slot is provided with assembly wrench holes at equal distances.

[0014] Furthermore, a mounting groove is provided on the surface of the shaft body, and a motor cage is provided on the inner wall of the mounting groove.

[0015] The beneficial effects of the utility model are:

[0016] (1) By setting an auxiliary component on the shaft body, the high-speed air-floating electric spindle can be assisted in cooling down during operation, thereby improving the dynamic performance of the ultra-high-speed air-floating spindle and increasing air flow. At the same time, the limiting component set in the mounting assembly can enhance the fixing and positioning effect of the grinding wheel connecting rod when the electric spindle rotates at high speed, ensuring that it will not loosen during high-speed operation.

[0017] (2) The stability of the electric spindle can be enhanced by setting the auxiliary component 2 in the auxiliary component 1. In addition, the disc spring component provides the chuck preload force and reduces the vibration during operation. At the same time, the mounting component set in the auxiliary component 2 is used to lock the grinding wheel connecting rod, which is conducive to improving the stable operation of the grinding wheel connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural schematic diagram of a high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail wing according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the cross section of the shaft, auxiliary component 1, and auxiliary component 2 of a high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the vortex tail structure of a high-performance ultra-high-speed air-bearing electric spindle with a built-in tail according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the high-temperature resistant layer and the wear-resistant layer of a high-performance ultra-high-speed air-bearing electric spindle with a built-in tail wing according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the installation assembly structure of a high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail according to an embodiment of the present utility model;

[0024] Figure 6 The figure is a schematic structural diagram of a limiting component of a high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail according to an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Shaft; 2. Auxiliary component 1; 201. Axial hole; 202. Vortex tail; 203. Anti-loosening screw; 204. Connecting screw; 3. Auxiliary component 2; 301. Spring chuck; 302. Limiting groove; 303. Disc spring assembly; 4. Mounting assembly; 401. Grinding wheel connecting rod; 402. Spindle head; 403. Grinding wheel; 5. Limiting assembly; 501. Limiting hole; 502. Spring set telescopic rod; 503. Limiting block; 6. High temperature resistant layer; 7. Wear resistant layer; 8. Vortex groove; 9. Exhaust groove; 10. Auxiliary assembly wrench hole; 11. Mounting groove; 12. Motor cage. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Embodiment 1;

[0029] like Figures 1-4As shown, according to an embodiment of the present invention, a high-performance ultra-high-speed air-floating electric spindle with a built-in tail wing comprises a shaft body 1, a mounting groove 11 is provided on the surface of the shaft body 1, a motor cage 12 is provided on the inner wall of the mounting groove 11, an auxiliary component 2 is provided on the shaft body 1, the auxiliary component 2 comprises an axial hole 201 provided on the shaft body 1, a vortex tail wing 202 is provided on the inner wall of the axial hole 201, the vortex tail wing 202 utilizes the gyroscopic effect to improve the dynamic performance of the ultra-high-speed air-floating spindle, increases the airflow and reduces the spindle temperature, and the vortex tail wing 202 is tested and used in an ultra-high-speed air-floating electric spindle of 300,000 rpm in actual use. From the test and use effect of the vortex tail wing 202, the vibration of the spindle at 150,000 rpm is 0.2-0.4 mm / s, and as the speed continues to increase, the vibration value gradually decreases. At 250,000-300,000 rpm, the vibration value of the spindle is 0.03-0.06 mm / s, which is close to the background vibration value;

[0030] The surface of the vortex tail 202 is provided with a high-temperature resistant layer 6 and a wear-resistant layer 7 in sequence. The high-temperature resistant layer 6 is composed of a ceramic coating, a metal-based composite coating, and an oxide coating. The wear-resistant layer 7 is composed of a silicon nitride coating and a nickel-based alloy coating. The outside of the vortex tail 202 is provided with a plurality of vortex grooves 8, and the number of the vortex grooves 8 is four. An exhaust groove 9 is provided at one end of the vortex tail 202. An auxiliary assembly wrench hole 10 with equal distances is provided at the end of the vortex tail 202 away from the exhaust groove 9. The number of the auxiliary holes 10 is four. The inner wall of the vortex tail 202 is provided with an anti-loosening screw 203, and one end of the anti-loosening screw 203 is connected to a connecting screw 204;

[0031] An auxiliary component 23 is provided at one end of the connecting screw 204, and the auxiliary component 23 includes a spring chuck 301 fixedly arranged at one end of the connecting screw 204, and one end surface of the spring chuck 301 contacts the inner wall of the tapered hole of the rotating shaft 1, and a limiting groove 302 is opened on the inner wall of the spring chuck 301, and the inner wall of the limiting groove 302 contacts one end of the limiting block 503, and the other end surface of the spring chuck 301 is provided with a disc spring assembly 303, and the surface of the disc spring assembly 303 contacts the inner wall of the axial hole 201 and one side of the vortex tail wing 202.

[0032] In actual application, by setting the auxiliary component 1 2 on the shaft body 1, the high-speed air-floating electric spindle can be assisted in cooling down during the ultra-high-speed air-floating electric spindle, thereby improving the dynamic performance of the ultra-high-speed air-floating spindle and increasing the air flow. At the same time, the auxiliary component 2 3 set on the auxiliary component 1 2 can enhance the stability of the electric spindle. In addition, the disc spring assembly provides the chuck pre-tightening force and reduces the vibration during operation. The high-temperature resistant layer 6 and the wear-resistant layer 7 set on the vortex tail 202 can provide good protection in high temperature and high wear environments.

[0033] Embodiment 2:

[0034] like Figures 1-6As shown, according to an embodiment of the present invention, a high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail wing is provided. The inner wall of the auxiliary component 2 3 is mounted with a mounting assembly 4. The mounting assembly 4 includes a grinding wheel connecting rod 401 mounted on the inner wall of the spring chuck 301. One end of the grinding wheel connecting rod 401 is provided with a shaft head 402, and one end of the shaft head 402 is mounted with a fixed grinding wheel 403.

[0035] A limiting component 5 is provided on the mounting component 4. The limiting component 5 includes a plurality of limiting holes 501 opened on the surface of the mounting component 4. The limiting holes 501 are opened on the surface of the grinding wheel connecting rod 401. A spring-set telescopic rod 502 is fixedly provided on the inner wall of the limiting hole 501. One end of the spring-set telescopic rod 502 is fixedly connected to a limiting block 503. One end of the limiting block 503 contacts the inner wall of the auxiliary component 2 3.

[0036] In actual application, the mounting assembly 4 provided in the auxiliary assembly 2 3 is used to lock the grinding wheel connecting rod, which is beneficial to improving the accurate installation and stable operation of the grinding wheel connecting rod. At the same time, the limiting assembly 5 provided in the mounting assembly 4 can enhance the fixing and positioning effect of the grinding wheel connecting rod 401 when the electric spindle rotates at high speed, ensuring that it will not loosen during high-speed operation.

[0037] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0038] In summary, with the aid of the above technical solution of the present invention, when in use, the vortex tail 202 generates a stable airflow through the gyro effect when the shaft body 1 rotates at high speed, thereby reducing the temperature of the shaft body 1. At the same time, the multiple vortex grooves 8 and auxiliary holes 10 of the vortex tail 202 contribute to the uniform distribution of the airflow, reduce airflow turbulence, and further reduce vibration and noise. The high-temperature resistant layer 6 and the wear-resistant layer 7 provided on the vortex tail 202 can provide good protection in high-temperature and high-wear environments, and the spring chuck 301 and the disc spring assembly 303 provided on the connecting screw 204 ensure the stability of the grinding wheel connecting rod 401, and the disc spring assembly 303 and the inner wall of the axial hole 201 and The vortex tail 202 is in contact on one side, forming a stable support system. The spring-set telescopic rod 502 and the limiting block 503 arranged on the inner wall of the limiting hole 501 cooperate with each other, further enhancing the fixing effect of the grinding wheel connecting rod 401, ensuring that it will not loosen during high-speed operation. When in use, the grinding wheel 403 is installed on the shaft head 402 of the grinding wheel connecting rod 401, which not only facilitates the installation of the grinding wheel 403, but also ensures the stability and precision of the grinding wheel 403 during high-speed operation. The motor cage 12 is arranged in the mounting groove 11 of the shaft body 1, so that the motor cage 12 and the shaft body 1 are integrated, reducing the transmission links and improving the overall efficiency and reliability of the system.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail fin, characterized in that: The invention comprises a shaft body (1), wherein an auxiliary component (2) is provided on the shaft body (1), wherein the auxiliary component (2) comprises an axial hole (201) opened on the shaft body (1), a vortex tail wing (202) is provided on the inner wall of the axial hole (201), an anti-loosening top screw (203) is provided on the inner wall of the vortex tail wing (202), one end of the anti-loosening top screw (203) is connected to a connecting screw (204), and one end of the connecting screw (204) is provided with an auxiliary component (3); The inner wall of the auxiliary component 2 (3) is installed with a mounting component (4), and the mounting component (4) is provided with a limiting component (5), and the limiting component (5) includes a plurality of limiting holes (501) opened on the surface of the mounting component (4), and the inner wall of the limiting hole (501) is fixedly provided with a spring-mounted telescopic rod (502), and one end of the spring-mounted telescopic rod (502) is fixedly connected to a limiting block (503), and one end of the limiting block (503) contacts the inner wall of the auxiliary component 2 (3).

2. A high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail according to claim 1, characterized in that: The auxiliary component 2 (3) includes a spring chuck (301) fixedly arranged at one end of the connecting screw (204), one end surface of the spring chuck (301) contacts the inner wall of the tapered hole of the axial hole (201), a limiting groove (302) is provided on the inner wall of the spring chuck (301), the inner wall of the limiting groove (302) contacts one end of the limiting block (503), and the other end surface of the spring chuck (301) is provided with a disc spring assembly (303), the surface of the disc spring assembly (303) contacts the inner wall of the axial hole (201) and one side of the vortex tail (202).

3. The high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail fin according to claim 2, characterized in that: The mounting assembly (4) comprises a grinding wheel connecting rod (401) mounted on the inner wall of a spring chuck (301), one end of the grinding wheel connecting rod (401) is provided with a shaft head (402), and one end of the shaft head (402) is mounted with a fixed grinding wheel (403).

4. A high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail wing according to claim 3, characterized in that: The surface of the vortex tail wing (202) is provided with a high-temperature resistant layer (6) and a wear-resistant layer (7) in sequence.

5. The high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail wing according to claim 4, characterized in that: The exterior of the vortex tail wing (202) is provided with a plurality of vortex grooves (8), and one end of the vortex tail wing (202) is provided with an exhaust groove (9).

6. The high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail fin according to claim 5, characterized in that: Auxiliary assembly wrench holes (10) with equal distances are provided on one end of the vortex tail wing (202) away from the exhaust groove (9).

7. The high-performance, ultra-high-speed air-bearing electric spindle with a built-in tail fin according to claim 6, characterized in that: A mounting groove (11) is provided on the surface of the shaft body (1), and a motor cage (12) is provided on the inner wall of the mounting groove (11).

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