Oil-gas lubrication high-speed motorized spindle capable of accurately supplying oil

Abstract

The utility model relates to an oil-gas lubrication high-speed motorized spindle capable of accurately supplying oil, which comprises a protective cover, a motorized spindle body is rotatably mounted in the protective cover, and a lubrication component is fixedly mounted at the top of the protective cover; and the lubricating assembly comprises a lubricating oil tank, the lubricating oil tank is fixedly installed at the top of the protective cover, a conveying pipe is fixedly installed at the bottom of the lubricating oil tank, and reset springs are fixedly installed on the left inner wall and the right inner wall of the conveying pipe correspondingly. According to the oil-gas lubrication high-speed motorized spindle capable of accurately supplying oil, through cooperation of the lubricating oil tank, the conveying pipe, the reset spring, the blocking ball, the oil injection pipe, the driving motor and the like, lubricating oil is added into the lubricating oil tank through the oil injection pipe, and when the motorized spindle body is lubricated and the driving motor drives a cam to be transverse, limiting on a piston plate is relieved; an auxiliary spring is utilized to enable a piston plate to move upwards, then a blocking ball drifts upwards, a conveying pipe is opened, and lubricating oil is injected into an electric spindle body.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindles, in particular to an oil-air lubrication high-speed electric spindle with precise oil supply. Background Technique

[0002] With the development of high-speed machining technology, the manufacturing industry has higher and higher requirements for the spindle speed of machine tools; as the core component of machine tools, electric spindles are also developing in the direction of high speed; the rotary motion of electric spindles mainly depends on the support bearings at both ends of the core shaft, and the rotational speed and load-bearing capacity of the bearings directly affect the performance of electric spindles.

[0003] Lubrication is a key factor affecting the performance of bearings. The traditional lubrication methods for electric spindle bearings are mostly grease lubrication, oil lubrication, etc.; these lubrication methods are mostly over-lubrication, which not only wastes resources, but also generates additional frictional torque in the bearings, affecting the bearing performance and restricting the maximum speed of electric spindles; in order to increase the bearing speed, oil-air lubrication is currently mostly used for high-speed bearings. Although oil-air lubrication can provide lubrication at fixed times and quantities, it requires precise control and maintenance to ensure sufficient oil supply and no impurities, and may not fully meet the requirements of high-speed electric spindles. Therefore, an oil-air lubrication high-speed electric spindle with precise oil supply is proposed to solve the above-mentioned problems. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an oil-air lubrication high-speed electric spindle with precise oil supply, which has the advantages of convenience in electric spindle lubrication, etc., and solves the problem that oil-air lubrication is mostly used for current high-speed bearings. Although oil-air lubrication can provide lubrication at fixed times and quantities, it requires precise control and maintenance to ensure sufficient oil supply and no impurities, and may not fully meet the requirements of high-speed electric spindles.

[0005] To achieve the above object, the utility model provides the following technical scheme: An oil-air lubrication high-speed electric spindle with precise oil supply, including a protective cover, an electric spindle body is rotatably installed inside the protective cover, and a lubrication component is fixedly installed on the top of the protective cover;

[0006] The lubrication component includes an oil storage tank, an oil storage tank is fixedly installed on the top of the protective cover, a delivery pipe is fixedly installed at the bottom of the oil storage tank, return springs are fixedly installed on the left and right inner walls of the delivery pipe, a blocking ball is fixedly installed between the tops of the two return springs, an injection pipe is fixedly installed on the right side of the oil storage tank, a driving motor is fixedly installed on the front of the oil storage tank, a cam is fixedly installed at the output shaft of the driving motor, baffles are fixedly installed on the left and right inner walls of the oil storage tank, auxiliary springs are fixedly installed at the bottoms of the two baffles, and a piston plate is movably installed inside the oil storage tank.

[0007] Preferably, the lubricating oil tank, the conveying pipe and the main body of the electric spindle are in communication with each other.

[0008] Preferably, one end of the oil injection pipe extends to the inside of the lubricating oil tank and is located at the bottom of the piston plate, and a valve is fixedly installed on the outer surface of the oil injection pipe.

[0009] Preferably, the diameter of the blocking ball is the same as that of the conveying pipe, and the blocking ball is located between the conveying pipe and the lubricating oil tank, and the bottom of the cam is in contact with the top of the piston plate.

[0010] Preferably, the ends of the two auxiliary springs away from the baffle are fixedly connected to the top of the piston plate.

[0011] Preferably, sliding grooves are formed in the left and right inner walls of the lubricating oil tank, and sliding blocks extending into the sliding grooves are fixedly installed on the left and right sides of the piston plate.

[0012] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0013] 1. For the oil-gas lubricated high-speed electric spindle with precise oil supply, by setting the protective cover and the main body of the electric spindle, the protective cover can prevent external objects, dust, liquid, etc. from invading the main body of the electric spindle, avoiding damage to the main body of the electric spindle, and when the main body of the electric spindle rotates at high speed, the protective cover can prevent the staff from contacting the rotating parts and avoid accidents; setting the lubrication component can lubricate the main body of the electric spindle, adding lubricating oil to the main body of the electric spindle can reduce internal friction, make the main body of the electric spindle run more smoothly, and improve work efficiency.

[0014] 2. For the oil-gas lubricated high-speed electric spindle with precise oil supply, through the cooperation among the lubricating oil tank, the conveying pipe, the return spring, the blocking ball, the oil injection pipe and the driving motor, etc., lubricating oil is added into the lubricating oil tank through the oil injection pipe. When lubricating the main body of the electric spindle, when the driving motor drives the cam to be horizontal, the limit on the piston plate is released, and the piston plate is driven to move upward by the auxiliary spring. Subsequently, the blocking ball drifts upward to open the conveying pipe, and lubricating oil is injected into the main body of the electric spindle. It can conveniently operate the dripping of the lubricating liquid, accurately control the injection of the lubricating oil, and ensure that there are no impurities during oil supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structure diagram of the present invention;

[0016] Figure 2 is a cross-sectional structure diagram of the present invention;

[0017] Figure 3 is an enlarged structure diagram of the lubrication component of the present invention.

[0018] In the figure: 1. Protective cover; 2. Electric spindle body; 3. Lubrication component; 301. Lubricating oil tank; 302. Delivery pipe; 303. Return spring; 304. Blocking ball; 305. Oil injection pipe; 306. Driving motor; 307. Cam; 308. Baffle plate; 309. Auxiliary spring; 310. Piston plate. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-3 , an oil-gas lubricated high-speed electric spindle with precise oil supply in this embodiment includes a protective cover 1. An electric spindle body 2 is rotatably installed inside the protective cover 1, and a lubrication component 3 is fixedly installed on the top of the protective cover 1.

[0021] It should be noted that the electric spindle body 2 is a new technology that integrates the machine tool spindle and the spindle motor in the field of numerical control machine tools. Through the lubrication component 3, the lubrication of the electric spindle body 2 is realized. Adding lubricating oil into the electric spindle body 2 can reduce internal friction, make the electric spindle body 2 run more smoothly, and improve work efficiency.

[0022] Specifically, by setting the protective cover 1, external objects, dust, liquids, etc. can be prevented from invading the electric spindle body 2, avoiding damage to the electric spindle body 2. And when the electric spindle body 2 rotates at a high speed, the protective cover 1 can prevent staff from contacting the rotating parts and avoid accidents.

[0023] The lubrication component 3 includes a lubricating oil tank 301. The lubricating oil tank 301 is fixedly installed on the top of the protective cover 1. A delivery pipe 302 is fixedly installed at the bottom of the lubricating oil tank 301. Return springs 303 are fixedly installed on the left and right inner walls of the delivery pipe 302. A blocking ball 304 is fixedly installed between the tops of the two return springs 303. An oil injection pipe 305 is fixedly installed on the right side of the lubricating oil tank 301. A driving motor 306 is fixedly installed on the front of the lubricating oil tank 301. A cam 307 is fixedly installed at the output shaft of the driving motor 306. Baffle plates 308 are fixedly installed on the left and right inner walls of the lubricating oil tank 301. Auxiliary springs 309 are fixedly installed at the bottoms of the two baffle plates 308. A piston plate 310 is movably installed inside the lubricating oil tank 301.

[0024] Specifically, lubricating oil is added into the lubricating oil tank 301 through the oil injection pipe 305. When lubricating the main body 2 of the electric spindle, when the cam 307 is driven by the driving motor 306 to be horizontal, the limit on the piston plate 310 is released, and the piston plate 310 is driven to move upward by the auxiliary spring 309. Subsequently, the blocking ball 304 drifts upward, opening the delivery pipe 302 to inject lubricating oil into the main body 2 of the electric spindle.

[0025] One end of the oil injection pipe 305 extends to the inside of the lubricating oil tank 301 and is located at the bottom of the piston plate 310. A valve is fixedly installed on the outer surface of the oil injection pipe 305.

[0026] Specifically, external lubricating oil is injected into the lubricating oil tank 301 through the oil injection pipe 305, and the lubricating oil is located at the bottom of the piston plate 310. By setting the valve, the opening and closing of the oil injection pipe 305 can be controlled.

[0027] The diameter of the blocking ball 304 is the same as that of the delivery pipe 302, and the blocking ball 304 is located between the delivery pipe 302 and the lubricating oil tank 301. The bottom of the cam 307 is in contact with the top of the piston plate 310.

[0028] Specifically, when the blocking ball 304 is completely fitted with the delivery pipe 302, the oil injection of the delivery pipe 302 can be closed.

[0029] One ends of the two auxiliary springs 309 away from the baffle 308 are fixedly connected to the top of the piston plate 310.

[0030] Specifically, by setting the auxiliary spring 309, it plays an auxiliary role in the movement of the piston plate 310. The movement of the piston plate 310 follows the rotation of the cam 307, and the expansion and compression of the auxiliary spring 309 follow the movement of the piston plate 310.

[0031] Chute grooves are provided on the left and right inner walls of the lubricating oil tank 301, and sliding blocks extending into the chute grooves are fixedly installed on both the left and right sides of the piston plate 310.

[0032] Specifically, when the piston plate 310 moves, it drives the sliding blocks on both sides to move inside the chute grooves respectively, improving the stability of the movement of the piston plate 310.

[0033] During implementation, the following steps are carried out for operation:

[0034] 1) Add lubricating oil into the lubricating oil tank 301 through the oil injection pipe 305 when lubricating the main body 2 of the electric spindle;

[0035] 2) Then, when the cam 307 is driven by the driving motor 306 to be horizontal, the piston plate 310 moves upward to compress the auxiliary spring 309;

[0036] 3) Subsequently, the blocking ball 304 drifts upward to open the conveying pipe 302;

[0037] 4) Finally, lubricating oil is injected into the main body 2 of the electric spindle through the conveying pipe 302.

[0038] In summary, for the oil-air lubricated high-speed electric spindle with precise oil supply, by setting the protective cover 1 and the main body 2 of the electric spindle, the protective cover 1 can prevent external objects, dust, liquids, etc. from invading the main body 2 of the electric spindle, avoiding damage to the main body 2 of the electric spindle. Moreover, when the main body 2 of the electric spindle rotates at a high speed, the protective cover 1 can prevent the staff from contacting the rotating parts and avoid accidents; setting the lubrication assembly 3 can lubricate the main body 2 of the electric spindle, add lubricating oil into the main body 2 of the electric spindle, reduce internal friction, make the main body 2 of the electric spindle operate more smoothly, and improve work efficiency.

[0039] Furthermore, by setting the cooperation among the lubricating oil tank 301, the conveying pipe 302, the return spring 303, the blocking ball 304, the oil injection pipe 305, the driving motor 306, etc., lubricating oil is added into the lubricating oil tank 301 through the oil injection pipe 305. When lubricating the main body 2 of the electric spindle, when the cam 307 driven by the driving motor 306 is in the horizontal direction, the limit on the piston plate 310 is released, and the auxiliary spring 309 is used to make the piston plate 310 move upward accordingly. Subsequently, the blocking ball 304 drifts upward to open the conveying pipe 302, and lubricating oil is injected into the main body 2 of the electric spindle, which can facilitate the operation of dripping lubricating fluid, accurately control the injection of lubricating oil, and ensure that there are no impurities during oil supply.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-gas lubricated high-speed electric spindle with precise oil supply, including a protective cover (1), characterized in that: The inner part of the protective cover (1) is rotatably installed with a main electric spindle body (2), and the top of the protective cover (1) is fixedly installed with a lubrication component (3); The lubrication component (3) includes a lubricating oil tank (301). The lubricating oil tank (301) is fixedly installed on the top of the protective cover (1). A delivery pipe (302) is fixedly installed at the bottom of the lubricating oil tank (301). Reset springs (303) are fixedly installed on the left and right inner walls of the delivery pipe (302). A blocking ball (304) is fixedly installed between the tops of the two reset springs (303). An oil injection pipe (305) is fixedly installed on the right side of the lubricating oil tank (301). A driving motor (306) is fixedly installed on the front of the lubricating oil tank (301). A cam (307) is fixedly installed at the output shaft of the driving motor (306). Baffles (308) are fixedly installed on the left and right inner walls of the lubricating oil tank (301). Auxiliary springs (309) are fixedly installed at the bottoms of the two baffles (308). A piston plate (310) is movably installed inside the lubricating oil tank (301).

2. The oil-gas lubrication high-speed electric main shaft with precise oil supply according to claim 1, wherein: The lubricating oil tank (301), the delivery pipe (302) and the main electric spindle body (2) are in communication with each other.

3. The oil-gas lubrication high-speed electric spindle with precise oil supply according to claim 1, characterized in that: One end of the oil injection pipe (305) extends into the lubricating oil tank (301) and is located at the bottom of the piston plate (310). A valve is fixedly installed on the outer surface of the oil injection pipe (305).

4. The oil-gas lubrication high-speed electric main shaft with precise oil supply according to claim 1, characterized in that: The diameter of the blocking ball (304) is the same as that of the delivery pipe (302), and the blocking ball (304) is located between the delivery pipe (302) and the lubricating oil tank (301). The bottom of the cam (307) is in contact with the top of the piston plate (310).

5. The oil-gas lubrication high-speed electric spindle for precise oil supply according to claim 1, characterized in that: One ends of the two auxiliary springs (309) far away from the baffles (308) are fixedly connected to the top of the piston plate (310).

6. The oil-gas lubrication high-speed electric main shaft for precise oil supply according to claim 1, characterized in that: Chute grooves are formed on the left and right inner walls of the lubricating oil tank (301), and sliding blocks extending into the chute grooves are fixedly installed on the left and right sides of the piston plate (310).

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