Main shaft bearing lubricating mechanism for machine tool

Abstract

The main shaft bearing lubricating mechanism for the machine tool comprises a main body, an oil inlet pipe is fixedly connected to the side surface of the main body, an oil tank is fixedly connected to the lower end of the oil inlet pipe, a guide pipe is fixedly connected to the side surface of the oil tank, and a metering pump is fixedly connected to the right end of the guide pipe. The output end of the metering pump is fixedly connected with an oil outlet pipe, and the right end of the oil outlet pipe is fixedly connected with a left baffle. According to the structure, through mutual cooperation of the left baffle, the oil tank, the metering pump and the oil outlet pipe, a bearing can be lubricated, quantitative oil can be added, abrasion and friction force of the main shaft can be reduced, the service life of the main body is prolonged, and through mutual cooperation of the left baffle and the right baffle, lubricating oil can be prevented from overflowing, and the use efficiency of the lubricating oil is improved; and external dust can be prevented from entering the bearing, the service life of the bearing is prolonged, the retainers can guide the steel balls to roll, and harmful sliding is prevented.

Description

Technical Field

[0001] This utility model relates to the field of bearing lubrication technology, and in particular to a lubrication mechanism for a spindle bearing of a machine tool. Background Technology

[0002] Machine tool spindle bearings are mainly used to ensure the normal operation of precision machine tools, reduce friction, thereby ensuring the accuracy and stability of part machining, and also extend the service life of the machine tool.

[0003] Machine tool spindle bearings play a crucial role in machining parts, thus requiring lubrication. Existing machine tool spindle bearing systems utilize the interaction of the spindle, pressure plate, oil tank, oil groove, bearing, and oil outlet to self-fill the bearings on the spindle, thereby reducing the load on the spindle during operation. However, the amount of oil injected cannot be precisely controlled during spindle operation, and it cannot be evenly applied to the bearings. Furthermore, dust can enter the bearings during operation, shortening the lifespan of the device. A search revealed that the technical solution provided by utility model application number CN202322271933.1 also suffers from the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a lubrication mechanism for a spindle bearing of a machine tool. Through the cooperation of the left baffle, oil tank, metering pump and oil outlet pipe, a fixed amount of oil can be added to the bearing for lubrication, which can reduce the wear and friction of the spindle and extend the service life of the main body. Furthermore, the cooperation of the left baffle and the right baffle can prevent the lubricating oil from overflowing, increase the efficiency of lubricating oil use, and prevent external dust from entering the bearing, thus extending the service life of the bearing. The retainer can guide the rolling of the steel balls and prevent harmful sliding.

[0005] To achieve the above objectives, this utility model also provides a main body having the aforementioned structure, wherein an oil inlet pipe is fixedly connected to the side surface of the main body, the oil inlet pipe can add lubricating oil into an oil tank, the lower end of the oil inlet pipe is fixedly connected to an oil tank, a conduit is fixedly connected to the side surface of the oil tank, a metering pump is fixedly connected to the right end of the conduit, an oil outlet pipe is fixedly connected to the output end of the metering pump, the oil outlet pipe can guide lubricating oil into the bearing, and a left baffle is fixedly connected to the right end of the oil outlet pipe. The left baffle, in conjunction with the right baffle, can prevent lubricating oil from overflowing, improve the efficiency of lubricating oil use, and also prevent external dust from entering the bearing.

[0006] A main shaft is rotatably connected to the inner wall of the left baffle. The rotation of the main shaft drives the inner housing of the bearing to rotate, thereby causing the steel balls to roll. The inner housing of the bearing is rotatably connected to the side surface of the main shaft, and the steel balls are rotatably connected to the side surface of the inner housing of the bearing. The steel balls reduce internal friction of the bearing, improve working efficiency, and extend the service life of the equipment. The outer housing of the bearing is rotatably connected to the side surface of the steel balls, and a retainer is rotatably connected to the side surface of the steel balls. The retainer can guide the rolling of the steel balls. A right baffle is rotatably connected to the side surface of the main shaft.

[0007] According to the aforementioned lubrication mechanism for a machine tool spindle bearing, screws are provided on the side surface of the main body, which can fix the left baffle and the right baffle to the bearing housing. Both the left baffle and the right baffle are provided with screw holes.

[0008] According to the aforementioned lubrication mechanism for a machine tool spindle bearing, the side surface of the screw is threadedly connected to the screw hole, and the side surface of the screw is threadedly connected to the bearing housing.

[0009] According to the aforementioned lubrication mechanism for a machine tool spindle bearing, the side surface of the retainer is rotatably connected to the left baffle, and the number of screws and the number of screw holes are multiple.

[0010] According to the aforementioned lubrication mechanism for a machine tool spindle bearing, the left end of the spindle is rotatably connected to the main body, and an electromagnetic valve is installed inside the oil inlet pipe. The electromagnetic valve can prevent external dust from entering the bearing. The electromagnetic valve is only opened when adding oil to inject lubricating oil into the oil tank.

[0011] According to the aforementioned lubrication mechanism for a machine tool spindle bearing, the side surface of the spindle is rotatably connected to the left baffle, and the metering pump is electrically connected to an external power source. The metering pump can dispense lubricating oil in a measured amount, ensuring that the amount of oil is neither too much nor too little.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a schematic diagram of the overall structure of a machine tool spindle bearing lubrication mechanism according to the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of a machine tool spindle bearing lubrication mechanism according to the present invention;

[0016] Figure 3 This is an exploded view of the internal structure of a lubrication mechanism for a spindle bearing of a machine tool according to the present invention.

[0017] Figure 4 This is a partial structural schematic diagram of a lubrication mechanism for a machine tool spindle bearing according to the present invention;

[0018] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] Legend:

[0020] 1. Main body; 2. Main shaft; 3. Oil inlet pipe; 4. Bearing housing; 5. Oil tank; 6. Guide pipe; 7. Metering pump; 8. Oil outlet pipe; 9. Left baffle; 10. Right baffle; 11. Bearing inner housing; 12. Steel ball; 13. Retainer; 15. Screw; 16. Screw hole. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-5 This utility model discloses a lubrication mechanism for a machine tool spindle bearing, comprising a main body 1. Multiple screws 15 are provided on the side surface of the main body 1. The side surface of each screw 15 is threadedly connected to a screw hole 16 and to a bearing housing 4. The screws 15 can fix a left baffle 9 and a right baffle 10 to the bearing housing 4. An oil inlet pipe 3 is fixedly connected to the side surface of the main body 1. A solenoid valve is installed inside the oil inlet pipe 3. The solenoid valve prevents external dust from entering the bearing. It is only opened when lubricating oil is added, allowing lubricating oil to be injected into an oil tank 5. The oil inlet pipe 3 adds lubricating oil to the oil tank 5. The lower part of the oil inlet pipe 3... An oil tank 5 is fixedly connected to the end of the bearing. A conduit 6 is fixedly connected to the side surface of the oil tank 5. A metering pump 7 is fixedly connected to the right end of the conduit 6. The metering pump 7 is electrically connected to an external power supply. The metering pump 7 can spray lubricating oil in a metered manner, ensuring that the amount of oil is neither too much nor too little. An oil outlet pipe 8 is fixedly connected to the output end of the metering pump 7. The oil outlet pipe 8 can guide the lubricating oil into the bearing. A left baffle 9 is fixedly connected to the right end of the oil outlet pipe 8. Both the left baffle 9 and the right baffle 10 are provided with screw holes 16. There are multiple screw holes 16. The left baffle 9, together with the right baffle 10, can prevent lubricating oil from overflowing, improve the efficiency of lubricating oil use, and also prevent external dust from entering the bearing.

[0023] A main shaft 2 is rotatably connected to the inner side wall of the left baffle 9. The side surface of the main shaft 2 is rotatably connected to the left baffle 9. The left end of the main shaft 2 is rotatably connected to the main body 1. The rotation of the main shaft 2 drives the bearing inner shell 11 to rotate, thereby causing the bearing inner shell 11 to drive the steel ball 12 to roll. The side surface of the main shaft 2 is rotatably connected to the bearing inner shell 11. The side surface of the bearing inner shell 11 is rotatably connected to the steel ball 12. The steel ball 12 reduces internal friction of the bearing, improves working efficiency, and extends the service life of the equipment. The side surface of the steel ball 12 is rotatably connected to the bearing outer shell 4. The side surface of the steel ball 12 is rotatably connected to the retainer 13. The retainer 13 can prevent the rolling elements from falling off and can guide the steel ball 12 to roll. The side surface of the main shaft 2 is rotatably connected to the right baffle 10.

[0024] Working principle: First, open the solenoid valve in the oil inlet pipe 3 to add lubricating oil into the oil tank 5. Then close the solenoid valve and connect the power supply. The metering pump 7 adds lubricating oil into the bearing through the conduit 6. The main shaft 2 rotates, which drives the bearing inner housing 11 to rotate. The bearing inner housing 11 drives the steel ball 12 to rotate. The steel ball 12 rolls between the bearing inner housing 11 and the bearing outer housing 4. The retainer 13 fixes the steel ball 12 in the bearing and guides its rolling.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A lubrication mechanism for a machine tool spindle bearing, characterized in that, include: The main body (1) has an oil inlet pipe (3) fixedly connected to its side surface. An oil tank (5) is fixedly connected to the lower end of the oil inlet pipe (3). A conduit (6) is fixedly connected to the side surface of the oil tank (5). A metering pump (7) is fixedly connected to the right end of the conduit (6). An oil outlet pipe (8) is fixedly connected to the output end of the metering pump (7). A left baffle (9) is fixedly connected to the right end of the oil outlet pipe (8). The left baffle (9) is rotatably connected to the inner side wall of the main shaft (2), the side surface of the main shaft (2) is rotatably connected to the bearing inner shell (11), the side surface of the bearing inner shell (11) is rotatably connected to the steel ball (12), the side surface of the steel ball (12) is rotatably connected to the bearing outer shell (4), the side surface of the steel ball (12) is rotatably connected to the retainer (13), and the side surface of the main shaft (2) is rotatably connected to the right baffle (10).

2. The lubrication mechanism for a machine tool spindle bearing according to claim 1, characterized in that, The side surface of the main body (1) is provided with screws (15), and both the left baffle (9) and the right baffle (10) are provided with screw holes (16).

3. The lubrication mechanism for a machine tool spindle bearing according to claim 2, characterized in that, The side surface of the screw (15) is threaded to the screw hole (16), and the side surface of the screw (15) is threaded to the bearing housing (4).

4. A lubrication mechanism for a machine tool spindle bearing according to claim 2, characterized in that, The number of screws (15) is multiple, and the number of screw holes (16) is multiple.

5. A lubrication mechanism for a machine tool spindle bearing according to claim 1, characterized in that, The left end of the main shaft (2) is rotatably connected to the main body (1), and an electromagnetic valve is installed inside the oil inlet pipe (3).

6. A lubrication mechanism for a machine tool spindle bearing according to claim 1, characterized in that, The side surface of the main shaft (2) is rotatably connected to the left baffle (9), and the metering pump (7) is electrically connected to an external power source.

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