Electric spindle with high dustproof performance

Abstract

The utility model relates to a motorized spindle with high dust resistance, which comprises a motorized spindle main body, a sealing assembly arranged on the motorized spindle main body and a circulating flow channel arranged on the motorized spindle main body, and a sealing cover is arranged at the end part of the motorized spindle main body; the sealing assembly comprises a first sealing ring arranged in the sealing cover and a second sealing ring arranged outside the sealing cover, the first sealing ring is located at the joint of the sealing cover and the electric spindle, and the second sealing ring is located at the joint of the sealing cover and a spindle on the electric spindle body. The circulating flow channel is used for lubrication of lubricating liquid, and the lubricating liquid is used for lubricating a bearing in the motorized spindle body. The dustproof electric spindle has the effect of improving the dustproof performance of the electric spindle, the sealing performance is improved by additionally arranging the sealing cover and the sealing ring, and the bearing is lubricated through the lubricating liquid, so that the bearing operates smoothly, dust can be adsorbed, and the bearing is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric spindle technology, in particular to an electric spindle with high dustproof performance. BACKGROUND

[0002] Electric spindle is a new technology that combines the spindle of machine tool with the spindle motor in recent years in the field of numerical control machine tool. The high-speed numerical control machine tool main drive system cancels the belt drive and gear drive. The machine tool spindle is directly driven by the built-in motor, so that the length of the machine tool main drive chain is shortened to zero, realizing the "zero transmission" of the machine tool.

[0003] The common lathe electric spindle, because the front bearing front pressing plate and the front cover are fixed and do not rotate, there will be a gap between the dust cover and the front bearing front pressing plate and the front cover to make the dust cover rotate smoothly. When cutting chips, the flying chips may be stuck in the electric spindle from the gap, and the dust and small particles may also fly into the electric spindle, causing damage to the electric spindle and the front bearing, affecting the service life of the electric spindle, which needs to be improved. SUMMARY

[0004] In order to improve the dustproof performance of the electric spindle, the present application provides an electric spindle with high dustproof performance.

[0005] The electric spindle with high dustproof performance provided by the present application adopts the following technical scheme:

[0006] An electric spindle with high dustproof performance, comprising an electric spindle body, a sealing assembly arranged on the electric spindle body, and a circulating flow channel arranged on the electric spindle body, the end of the electric spindle body is provided with a sealing cover, the sealing assembly comprises a first sealing ring arranged in the sealing cover and a second sealing ring arranged outside the sealing cover, the first sealing ring is located at the connection between the sealing cover and the electric spindle, and the second sealing ring is located at the connection between the sealing cover and the spindle on the electric spindle body; the circulating flow channel is used for lubricating the lubricating liquid, and the lubricating liquid is used for lubricating the bearing in the electric spindle body.

[0007] By adopting the above technical scheme, the sealing cover is arranged at the bearing, the first sealing ring is arranged at the connection between the sealing cover and the end surface of the electric spindle body to seal, and the second sealing ring is arranged at the connection between the sealing cover and the spindle of the electric spindle body to seal, thereby improving the sealing performance of the two positions of the sealing cover where dust is easy to enter, and the circulating flow channel is arranged to circulate the lubricating oil, so that the bearing is lubricated to rotate smoothly, and the dust that may exist in the sealing cover is adsorbed, thereby improving the dustproof performance of the electric spindle.

[0008] Optionally, the electric spindle body is provided with a circulating assembly, the circulating assembly comprises a micro pump arranged on the electric spindle body, an oil inlet pipe arranged on the micro pump and an oil outlet pipe arranged on the micro pump, the micro pump is provided with an outlet and an inlet, the sealing cover is provided with an oil inlet and an oil outlet, the oil inlet pipe is connected with the outlet and the oil inlet, and the oil outlet pipe is connected with the oil outlet and the inlet.

[0009] By adopting the above technical scheme, the circulating assembly is arranged to continuously lubricate the bearing with the lubricating oil, adsorb dust and make the bearing run smoothly.

[0010] Optionally, the bearing comprises an inner ring, an outer ring and a ball, the ball is located between the inner ring and the outer ring, the outer ring is provided with an inlet and an outlet, and the inlet and the outlet are used for the lubricating oil to enter and exit the bearing; the oil outlet pipe, the oil inlet, the inlet, the inner ring of the bearing, the outlet, the oil outlet and the oil inlet pipe form a circulating flow channel.

[0011] By adopting the above technical scheme, the oil outlet pipe, the oil inlet, the inlet, the inner ring of the bearing, the outlet, the oil outlet and the oil inlet pipe form a circulating flow channel, the lubricating oil circulates under the driving of the micro pump, thereby continuously lubricating the ball of the bearing, adsorbing dust, making the bearing run smoothly and reducing the wear of the bearing.

[0012] Optionally, the inlet and the outlet are provided with a mounting nozzle, the mounting nozzle is provided with a mounting port, and the mounting port is used for accommodating the oil inlet pipe or the oil outlet pipe.

[0013] By adopting the above technical scheme, the mounting port is arranged to accommodate the oil inlet pipe or the oil outlet pipe, so that the oil inlet pipe or the oil outlet pipe is mounted on the micro pump.

[0014] Optionally, the mounting nozzle is a rubber mounting nozzle.

[0015] By adopting the above technical scheme, the rubber mounting nozzle can facilitate the fixation of the oil inlet pipe or the oil outlet pipe, increase the friction force of the oil inlet pipe and the oil outlet pipe in the mounting nozzle, so that the oil outlet pipe and the oil inlet pipe are stably mounted and fixed on the mounting nozzle to be mounted on the micro pump.

[0016] Optionally, the micro pump is provided with a mounting seat, the mounting seat is provided with a mounting hole, and the mounting hole is used for the bolt to pass through to mount the mounting seat on the electric spindle body.

[0017] By adopting the above technical scheme, the mounting seat is arranged and the mounting hole is arranged to pass through the bolt, so that the mounting seat is mounted on the electric spindle body, and the micro pump is fixed on the outer wall of the electric spindle body.

[0018] Optionally, the electric spindle body is provided with a locking bolt, and the locking bolt is used for fixing the sealing cover on the electric spindle body.

[0019] By adopting the technical scheme, the locking bolt is arranged to fix and mount the sealing cover, so that the sealing cover is stably fixed on the main shaft body.

[0020] Optionally, the end face of the main shaft body is provided with a positioning protrusion, and the positioning protrusion is used for positioning the sealing cover, and the first sealing ring is sleeved on the positioning protrusion.

[0021] By adopting the technical scheme, the positioning protrusion is arranged to position the sealing cover, so that the sealing cover is mounted closely with the first sealing ring sleeved on the positioning protrusion, and then the sealing cover is covered on the end portion of the main shaft body, at this time, the inner wall of the sealing cover abuts against the outer wall of the first sealing ring, so as to increase the sealing effect.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The sealing cover is arranged to cover the bearing, the first sealing ring is arranged to be mounted at the connection between the sealing cover and the end face of the main shaft body to seal, and the second sealing ring is arranged to be mounted at the connection between the sealing cover and the main shaft of the main shaft body to seal, so as to improve the sealing performance of the two positions of the sealing cover where dust is easy to enter, and the circulating flow channel is arranged to circulate the lubricating oil, so as to lubricate the bearing to run smoothly, and adsorb the dust possibly existing in the sealing cover, thereby improving the dustproof performance of the electric main shaft.

[0024] 2. The circulating assembly is arranged to continuously lubricate the bearing with the lubricating oil, and the dust is adsorbed while the bearing runs smoothly.

[0025] 3. The mounting seat is arranged and the mounting hole is arranged for the bolt to pass through, so as to mount the mounting seat on the main shaft body, and thereby fix the micro pump on the outer wall of the main shaft body.

[0026] 4. The positioning protrusion is arranged to position the sealing cover, so as to facilitate the mounting of the sealing cover, and the first sealing ring is sleeved on the positioning protrusion, and then the sealing cover is covered on the end portion of the main shaft body, at this time, the inner wall of the sealing cover abuts against the outer wall of the first sealing ring, so as to increase the sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic diagram of the electric main shaft with high dustproof performance according to the embodiment of the present application.

[0028] Figure 2 is the structure schematic diagram of the sealing assembly according to the embodiment.

[0029] Figure 3 is the structure schematic diagram of the bearing according to the embodiment.

[0030] Explanation of reference signs: 1, main body of electric spindle; 2, sealing assembly; 21, first sealing ring; 22, second sealing ring; 3, circulating flow channel; 4, sealing cover; 5, circulating assembly; 6, micro pump; 7, oil inlet pipe; 8, oil outlet pipe; 9, liquid outlet; 10, liquid inlet; 11, oil inlet; 12, oil outlet; 13, bearing; 131, inner ring; 132, outer ring; 133, ball; 14, inlet; 15, outlet; 16, mounting nozzle; 17, mounting seat; 18, locking bolt; 19, positioning protrusion. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings. Figures 1-3 The present application is further described in detail.

[0032] The present application discloses an electric spindle with high dustproof performance. Referring to Figure 1 and Figure 2 , the electric spindle with high dustproof performance comprises a main body of electric spindle 1, a sealing assembly 2 mounted on the main body of electric spindle 1, and a circulating flow channel 3 distributed on the main body of electric spindle 1. The end of the main body of electric spindle 1 is provided with a sealing cover 4. The sealing assembly 2 comprises a first sealing ring 21 mounted in the sealing cover 4 and a second sealing ring 22 mounted outside the sealing cover 4. The first sealing ring 21 is located at the connection between the sealing cover 4 and the electric spindle, and the second sealing ring is located at the connection between the sealing cover 4 and the spindle on the main body of electric spindle 1. The circulating flow channel 3 is used for lubricating the lubricating liquid, and the lubricating liquid is used for lubricating the bearing 13 (not shown in the figure) in the main body of electric spindle 1.

[0033] Referring to Figure 1 and Figure 2 , the main body of electric spindle 1 is provided with a circulating assembly 5. The circulating assembly 5 comprises a micro pump 6 fixed on the main body of electric spindle 1, an oil inlet pipe 7 mounted on the micro pump 6, and an oil outlet pipe 8 mounted on the micro pump 6. The micro pump 6 is provided with a liquid outlet 9 and a liquid inlet 10. The sealing cover 4 is provided with an oil inlet 11 and an oil outlet 12. The oil inlet pipe 7 communicates with the liquid outlet 9 and the oil inlet 11. The oil outlet pipe 8 communicates with the oil outlet 12 and the liquid inlet 10.

[0034] Referring to Figure 1 and Figure 3 , the bearing 13 comprises an inner ring 131, an outer ring 132, and a ball 133. The ball 133 is located between the inner ring 131 and the outer ring 132. The outer ring 132 is provided with an inlet 14 and an outlet 15. The inlet 14 and the outlet 15 are used for lubricating oil to enter and exit the bearing 13. The oil outlet pipe 8, the oil inlet 11, the inlet 14, the inner ring 131 of the bearing 13, the outlet 15, the oil outlet 12, and the oil inlet pipe 7 form the circulating flow channel 3.

[0035] Referring to Figure 1The installation mouth 16 is fixed on the inlet 10 and the outlet 9, and the installation mouth 16 is provided with an installation opening for accommodating the oil inlet pipe 7 or the oil outlet pipe 8. The installation mouth 16 is a rubber installation mouth 16. The micro pump 6 is fixed with a mounting seat 17, and the mounting seat 17 is provided with an installation hole for the bolt to pass through so as to install the mounting seat 17 on the main shaft body 1.

[0036] With reference to Figure 1 and Figure 2 The locking bolt 18 is installed on the main shaft body 1, and the locking bolt 18 is used for fixing the sealing cover 4 on the main shaft body 1. The end surface of the main shaft body 1 is fixed with a positioning protrusion 19, and the positioning protrusion 19 is used for positioning the sealing cover 4. The first sealing ring 21 is sleeved on the positioning protrusion 19.

[0037] The implementation principle of the electric main shaft with high dustproof performance in the embodiment of the application is as follows: the sealing cover 4 is arranged to cover the bearing 13, the first sealing ring 21 is arranged to be installed at the connection between the sealing cover 4 and the end surface of the main shaft body 1 to seal, and the second sealing ring is arranged to be installed at the connection between the sealing cover 4 and the main shaft of the main shaft body 1 to seal. The sealing performance of the two positions of the sealing cover 4 where dust is easy to enter is improved, the lubricating oil is circulated through the circulation flow channel 3 to flow, the bearing 13 is lubricated to run smoothly, and the dust possibly existing in the sealing cover 4 is adsorbed, so that the dustproof performance of the electric main shaft is improved.

[0038] The above are the preferred embodiments of the application, and are not used to limit the protection scope of the application. Therefore, any equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An electric spindle having high dust resistance, characterized by: The utility model provides a kind of electric spindle, including electric spindle body (1), be provided on electric spindle body (1) on sealing assembly (2) and be provided on the circulation flow channel (3) of electric spindle body (1), the end of electric spindle body (1) is equipped with sealing cover (4), sealing assembly (2) includes the first sealing ring (21) being arranged in sealing cover (4) and the second sealing ring (22) being arranged outside sealing cover (4), the first sealing ring (21) is located at the junction of sealing cover (4) and electric spindle, the second sealing ring is located at the junction of sealing cover (4) and the spindle on electric spindle body (1);The circulation flow channel (3) is used for lubricating lubricating liquid, lubricating liquid is used to lubricate the bearing (13) in the electric spindle body (1).

2. The motorized spindle having high dust resistance according to claim 1, characterized by: The electric spindle body (1) is equipped with circulation assembly (5), the circulation assembly (5) includes micro pump (6) being arranged on electric spindle body (1), oil inlet pipe (7) being arranged on micro pump (6) and oil outlet pipe (8) being arranged on micro pump (6), the micro pump (6) is equipped with liquid outlet (9) and liquid inlet (10), the sealing cover (4) is equipped with oil inlet (11) and oil outlet (12), the oil inlet pipe (7) is communicated with liquid outlet (9) and oil inlet (11), the oil outlet pipe (8) is communicated with oil outlet (12) and liquid inlet (10).

3. The motorized spindle having high dust resistance according to claim 2, characterized by: The bearing (13) includes inner ring (131), outer ring (132) and ball (133), the ball (133) is located between inner ring (131) and outer ring (132);The outer ring (132) is equipped with inlet (14) and outlet (15), the inlet (14) and outlet (15) are used for lubricating oil to enter and exit bearing (13);The oil outlet pipe (8), oil inlet (11), inlet (14), inner ring (131) of bearing (13), outlet (15), oil outlet (12) and oil inlet pipe (7) form circulation flow channel (3).

4. The motorized spindle having high dust resistance according to claim 2, characterized by: The liquid inlet (10) and liquid outlet (9) are equipped with mounting nozzle (16), the mounting nozzle (16) is equipped with mounting port, the mounting port is used for oil inlet pipe (7) or oil outlet pipe (8) to accommodate.

5. The motorized spindle having high dust resistance according to claim 4, characterized by: The mounting nozzle (16) is rubber mounting nozzle (16).

6. The motorized spindle having high dust resistance according to claim 2, characterized by: The micro pump (6) is equipped with mounting seat (17), the mounting seat (17) is equipped with mounting hole, the mounting hole is used for bolt to pass through to install mounting seat (17) on electric spindle body (1).

7. The motorized spindle having high dust resistance according to claim 1, characterized by: The electric spindle body (1) is equipped with locking bolt (18), the locking bolt (18) is used for fixing sealing cover (4) on electric spindle body (1).

8. The motorized spindle having high dust resistance according to claim 1, characterized by: The end surface of the electric spindle body (1) is equipped with positioning protrusion (19), the positioning protrusion (19) is used for positioning sealing cover (4), the first sealing ring (21) is sleeved on positioning protrusion (19).

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