CN109332732B - But follow-up stability spindle unit - Google Patents
But follow-up stability spindle unit Download PDFInfo
- Publication number
- CN109332732B CN109332732B CN201811373519.9A CN201811373519A CN109332732B CN 109332732 B CN109332732 B CN 109332732B CN 201811373519 A CN201811373519 A CN 201811373519A CN 109332732 B CN109332732 B CN 109332732B
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- roller bearing
- tapered roller
- pressed
- end surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001816 cooling Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000013021 overheating Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Abstract
The upper nut is fixedly connected to the upper end of the main shaft in a threaded manner, the outer ring of the tapered roller bearing is clamped between the upper cover of the shaft sleeve and the first step of the inner wall of the shaft sleeve, and the inner ring of the tapered roller bearing is clamped between the upper nut and the upper end surface of the upper cushion block disc; the upper end surface of the upper thrust tapered roller bearing is pressed on the lower end surface of the upper cushion block disc, the lower end surface of the upper thrust tapered roller bearing is pressed on the second step of the inner wall of the shaft sleeve, and the inner end surface of the upper thrust tapered roller bearing is pressed on the main shaft; the lower part of the spindle exposed out of the shaft sleeve is provided with a conical surface, the inner wall of the central hole of the rotating member is provided with an inner wall surface matched with the conical surface, the central hole of the rotating member is inserted into the spindle part with the conical surface, and the lower nut is in threaded connection with the lower end of the spindle and presses the lower end surface of the rotating member. The upper thrust tapered roller bearing and the lower thrust tapered roller bearing ensure the stability of the main shaft during rotation, and can prevent the main shaft from overheating in the working process and prevent gas from blocking in the shaft sleeve during high-speed rotation of the main shaft.
Description
Technical field:
the invention relates to the technical field of headstocks, in particular to a headstock structure which is good in stability and capable of cooling water and exhausting air automatically.
The background technology is as follows:
tapered roller bearings are additionally arranged between a main shaft and a shaft sleeve on the existing main shaft box, and as only a retainer supports between an inner ring and an outer ring of the tapered roller bearings, the main shaft is poor in stability during rotation. The rotating part for processing the workpiece is generally fixed on the main shaft, and is generally fixed on the main shaft through screws, so that the rotating part is not convenient to install and detach, and meanwhile, the rotating part is not provided with a water cooling nozzle in some working processes, so that the rotating part is overheated, and the processing precision of the rotating part is affected.
The invention comprises the following steps:
the invention aims at overcoming the defects of the prior art, and provides a follow-up stable spindle mechanism, which is characterized in that an upper thrust tapered roller bearing and a lower thrust tapered roller bearing are additionally arranged between a spindle and a shaft sleeve, so that the stability of the spindle in rotation is ensured, a water cooling channel is arranged on the shaft sleeve, the spindle is prevented from overheating in the working process, an exhaust port is arranged on the upper cover of the shaft sleeve, and gas is prevented from blocking in the shaft sleeve when the spindle rotates at a high speed.
The technical solution of the invention is as follows:
the servo-type stable spindle mechanism comprises a spindle 1 and a shaft sleeve 2, wherein an upper cover 3 of the shaft sleeve is fixed at the upper end of the shaft sleeve 2 through a screw, a motor 4 is fixed on the upper cover 3 of the shaft sleeve, and a rotating shaft of the motor 4 is fixed with the spindle 1;
the upper nut 5 is fixedly connected to the upper end of the main shaft 1 in a threaded manner, the outer ring of the tapered roller bearing 6 is clamped between the shaft sleeve upper cover 3 and the first step 21 of the inner wall of the shaft sleeve, and the inner ring of the tapered roller bearing 6 is clamped between the upper nut 5 and the upper end surface of the upper cushion block disc 7;
the upper end surface of the upper thrust tapered roller bearing 8 is pressed on the lower end surface of the upper cushion block disc 7, the lower end surface of the upper thrust tapered roller bearing 8 is pressed on the second step 22 on the inner wall of the shaft sleeve, and the inner end surface of the upper thrust tapered roller bearing 8 is pressed on the main shaft 1;
the upper end surface of the lower thrust tapered roller bearing 9 is pressed on the third step 23 of the inner wall of the shaft sleeve, the lower end surface of the lower thrust tapered roller bearing 9 is pressed on the upper end surface of the lower cushion block disc 10, and the inner end surface of the lower thrust tapered roller bearing 9 is pressed on the main shaft 1;
the pressure spring 11 is inserted in the through hole 24 of the inner wall of the shaft sleeve, the upper end of the pressure spring 11 is pressed on the lower end face of the upper thrust tapered roller bearing 8, and the lower end of the upper end of the pressure spring 11 is pressed on the upper end face of the lower thrust tapered roller bearing 9;
the lower end face of the lower cushion block disc 10 is pressed on the upper end face of the inner ring of the double-row tapered roller bearing 12, the upper end face of the outer ring of the double-row tapered roller bearing 12 is pressed on the fourth step 25 of the inner wall of the shaft sleeve, the lower end face of the inner ring of the double-row tapered roller bearing 12 is pressed on the upper end face of the tray 13, the tray 13 is inserted on the main shaft 1, and the lower end face of the tray 13 is pressed on the main shaft step 1 a;
the lower end cover 14 of the shaft sleeve is fixed at the lower end of the shaft sleeve 2 through a screw, the lower end face of the outer ring of the double-row tapered roller bearing 12 is pressed on the lower end cover 14 of the shaft sleeve, a 0-shaped sealing ring 15 is clamped between the shaft sleeve and the lower end cover 14 of the shaft sleeve, and a lip-shaped sealing ring 16 is clamped between the main shaft 1 and the lower end cover 14 of the shaft sleeve;
the lower part of the spindle 1, which is exposed out of the shaft sleeve 2, is provided with a conical surface 1b, the inner wall of the central hole of the rotating member 17 is provided with an inner wall surface matched with the conical surface 1b, the central hole of the rotating member 17 is inserted into the spindle 1 with the conical surface 1b, and a lower nut 18 is in threaded connection with the lower end of the spindle 1 and presses the lower end surface of the rotating member 17.
A nozzle bracket 30 is fixed on the shaft sleeve 2, a nozzle 31 is fixed on the nozzle bracket 30, and the nozzle 31 faces the rotating piece 17; the shaft sleeve 22 is formed with a fixing plate 32, and the fixing plate 32 is formed with a plurality of fixing holes 33.
The shaft sleeve 2 is provided with a water cooling channel 26, and the water cooling channel 26 is communicated with circulating cooling water.
The invention has the beneficial effects that:
1. the upper thrust tapered roller bearing and the lower thrust tapered roller bearing are additionally arranged between the main shaft and the shaft sleeve, so that the stability of the main shaft in rotation is ensured, the water cooling channel is arranged on the shaft sleeve, the main shaft is prevented from overheating in the working process, the exhaust port is arranged on the upper cover of the shaft sleeve, and the gas is prevented from being blocked in the shaft sleeve when the main shaft rotates at a high speed.
2. The rotating part is fixed on the main shaft through conical surface matching, the key on the shaft sleeve can be convenient for disassembling the rotating part, and can play a role in fixing in the transportation process, and the rotating part is provided with a nozzle, so that a workpiece can play a role in lubrication during processing.
Description of the drawings:
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic perspective view of the present invention;
fig. 4 is an enlarged view at a in fig. 1.
In the figure: 1. a main shaft; 2. a shaft sleeve; 21. a first step on the inner wall of the shaft sleeve; 22. a second step on the inner wall of the shaft sleeve; 23. a third step on the inner wall of the shaft sleeve; 24. a through hole on the inner wall of the shaft sleeve; 25. a fourth step on the inner wall of the shaft sleeve; 26. a water cooling channel; 3. a shaft sleeve upper cover; 4. a motor; 5. a top nut; 6. tapered roller bearings; 7. an upper cushion block disc; 8. an upper thrust tapered roller bearing; 9. a lower thrust tapered roller bearing; 10. a lower cushion block disc; 11. a pressure spring; 12. double row tapered roller bearings; 13. a tray; 14. a shaft sleeve lower end cover; 15. a 0-type seal ring; 16. a lip seal ring; 17. a rotating member; 18. a lower nut; 30. a nozzle holder; 31. a nozzle; 32. a fixed plate; 33. and a fixing hole.
The specific embodiment is as follows:
examples: as shown in fig. 1 to 4, a servo-type stable spindle mechanism comprises a spindle 1 and a shaft sleeve 2, wherein a shaft sleeve upper cover 3 is fixed at the upper end of the shaft sleeve 2 through a screw, a motor 4 is fixed on the shaft sleeve upper cover 3, and a rotating shaft of the motor 4 is fixed with the spindle 1;
the upper nut 5 is fixedly connected to the upper end of the main shaft 1 in a threaded manner, the outer ring of the tapered roller bearing 6 is clamped between the shaft sleeve upper cover 3 and the first step 21 of the inner wall of the shaft sleeve, and the inner ring of the tapered roller bearing 6 is clamped between the upper nut 5 and the upper end surface of the upper cushion block disc 7;
the upper end surface of the upper thrust tapered roller bearing 8 is pressed on the lower end surface of the upper cushion block disc 7, the lower end surface of the upper thrust tapered roller bearing 8 is pressed on the second step 22 on the inner wall of the shaft sleeve, and the inner end surface of the upper thrust tapered roller bearing 8 is pressed on the main shaft 1;
the upper end surface of the lower thrust tapered roller bearing 9 is pressed on the third step 23 of the inner wall of the shaft sleeve, the lower end surface of the lower thrust tapered roller bearing 9 is pressed on the upper end surface of the lower cushion block disc 10, and the inner end surface of the lower thrust tapered roller bearing 9 is pressed on the main shaft 1;
the pressure spring 11 is inserted in the through hole 24 of the inner wall of the shaft sleeve, the upper end of the pressure spring 11 is pressed on the lower end face of the upper thrust tapered roller bearing 8, and the lower end of the upper end of the pressure spring 11 is pressed on the upper end face of the lower thrust tapered roller bearing 9;
the lower end face of the lower cushion block disc 10 is pressed on the upper end face of the inner ring of the double-row tapered roller bearing 12, the upper end face of the outer ring of the double-row tapered roller bearing 12 is pressed on the fourth step 25 of the inner wall of the shaft sleeve, the lower end face of the inner ring of the double-row tapered roller bearing 12 is pressed on the upper end face of the tray 13, the tray 13 is inserted on the main shaft 1, and the lower end face of the tray 13 is pressed on the main shaft step 1 a;
the lower end cover 14 of the shaft sleeve is fixed at the lower end of the shaft sleeve 2 through a screw, the lower end face of the outer ring of the double-row tapered roller bearing 12 is pressed on the lower end cover 14 of the shaft sleeve, a 0-shaped sealing ring 15 is clamped between the shaft sleeve and the lower end cover 14 of the shaft sleeve, and a lip-shaped sealing ring 16 is clamped between the main shaft 1 and the lower end cover 14 of the shaft sleeve;
the lower part of the spindle 1, which is exposed out of the shaft sleeve 2, is provided with a conical surface 1b, the inner wall of the central hole of the rotating member 17 is provided with an inner wall surface matched with the conical surface 1b, the central hole of the rotating member 17 is inserted into the spindle 1 with the conical surface 1b, and a lower nut 18 is in threaded connection with the lower end of the spindle 1 and presses the lower end surface of the rotating member 17.
A nozzle bracket 30 is fixed on the shaft sleeve 2, a nozzle 31 is fixed on the nozzle bracket 30, and the nozzle 31 faces the rotating piece 17; the shaft sleeve 22 is formed with a fixing plate 32, and the fixing plate 32 is formed with a plurality of fixing holes 33.
The shaft sleeve 2 is provided with a water cooling channel 26, and the water cooling channel 26 is communicated with circulating cooling water.
Working principle: the upper thrust tapered roller bearing 8 and the lower thrust tapered roller bearing 9 are additionally arranged between the main shaft 1 and the shaft sleeve 2, so that the stability of the main shaft 1 during rotation is ensured, the water cooling channel 26 is arranged on the shaft sleeve 2, the main shaft 1 is prevented from overheating in the working process, the exhaust port 3a is arranged on the shaft sleeve upper cover 3, and the gas is prevented from being blocked in the shaft sleeve 2 during high-speed rotation of the main shaft 1.
The rotating part 17 is fixed on the main shaft 1 through the matching of the conical surface 1b, and the key on the shaft sleeve 2 not only can be convenient for disassembling the rotating part 17, but also can play a role in fixing in the transportation process, and the rotating part 17 is provided with the nozzle 31, so that the workpiece can play a role in lubrication during processing.
Claims (3)
1. The utility model provides a but follow-up stability spindle unit, includes main shaft (1) and axle sleeve (2), its characterized in that: the upper cover (3) of the shaft sleeve is fixed at the upper end of the shaft sleeve (2) through a screw, the motor (4) is fixed on the upper cover (3) of the shaft sleeve, and the rotating shaft of the motor (4) is fixed with the main shaft (1);
the upper nut (5) is fixedly connected to the upper end of the main shaft (1) in a threaded manner, the outer ring of the tapered roller bearing (6) is clamped between the shaft sleeve upper cover (3) and the first step (21) on the inner wall of the shaft sleeve, and the inner ring of the tapered roller bearing (6) is clamped between the upper nut (5) and the upper end surface of the upper cushion block disc (7);
the upper end surface of the upper thrust tapered roller bearing (8) is pressed on the lower end surface of the upper cushion block disc (7), the lower end surface of the upper thrust tapered roller bearing (8) is pressed on the second step (22) on the inner wall of the shaft sleeve, and the inner end surface of the upper thrust tapered roller bearing (8) is pressed on the main shaft (1);
the upper end surface of the lower thrust tapered roller bearing (9) is pressed on a third step (23) on the inner wall of the shaft sleeve, the lower end surface of the lower thrust tapered roller bearing (9) is pressed on the upper end surface of the lower cushion block disc (10), and the inner end surface of the lower thrust tapered roller bearing (9) is pressed on the main shaft (1);
the compression spring (11) is inserted into the through hole (24) on the inner wall of the shaft sleeve, the upper end of the compression spring (11) is pressed on the lower end face of the upper thrust tapered roller bearing (8), and the lower end of the upper end of the compression spring (11) is pressed on the upper end face of the lower thrust tapered roller bearing (9);
the lower end face of the lower cushion block disc (10) is pressed on the upper end face of the inner ring of the double-row tapered roller bearing (12), the upper end face of the outer ring of the double-row tapered roller bearing (12) is pressed on the fourth step (25) of the inner wall of the shaft sleeve, the lower end face of the inner ring of the double-row tapered roller bearing (12) is pressed on the upper end face of the tray (13), the tray (13) is inserted on the main shaft 1, and the lower end face of the tray (13) is pressed on the main shaft step (1 a);
the lower end cover (14) of the shaft sleeve is fixed at the lower end of the shaft sleeve (2) through a screw, the lower end face of the outer ring of the double-row tapered roller bearing (12) is pressed on the lower end cover (14) of the shaft sleeve, a 0-shaped sealing ring (15) is clamped between the shaft sleeve and the lower end cover (14) of the shaft sleeve, and a lip-shaped sealing ring (16) is clamped between the main shaft (1) and the lower end cover (14) of the shaft sleeve;
the spindle (1) is provided with a conical surface (1 b) at the lower part of the shaft sleeve (2), the inner wall of the central hole of the rotating piece (17) is provided with an inner wall surface matched with the conical surface (1 b), the central hole of the rotating piece (17) is inserted and sleeved at the spindle (1) part with the conical surface (1 b), and the lower nut (18) is in threaded connection with the lower end of the spindle (1) and presses the lower end surface of the rotating piece (17).
2. A servable stability spindle mechanism according to claim 1, wherein: a nozzle bracket (30) is fixed on the shaft sleeve (2), a nozzle (31) is fixed on the nozzle bracket (30), and the nozzle (31) faces the rotating piece (17); a fixed disc (32) is formed on the shaft sleeve (22), and a plurality of fixed holes (33) are formed on the fixed disc (32).
3. A servable stability spindle mechanism according to claim 1, wherein: a water cooling channel (26) is formed on the shaft sleeve (2), and the water cooling channel (26) is communicated with circulating cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373519.9A CN109332732B (en) | 2018-11-19 | 2018-11-19 | But follow-up stability spindle unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373519.9A CN109332732B (en) | 2018-11-19 | 2018-11-19 | But follow-up stability spindle unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109332732A CN109332732A (en) | 2019-02-15 |
| CN109332732B true CN109332732B (en) | 2024-01-12 |
Family
ID=65316046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811373519.9A Active CN109332732B (en) | 2018-11-19 | 2018-11-19 | But follow-up stability spindle unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109332732B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909431A (en) * | 2019-03-11 | 2019-06-21 | 奔龙自动化科技有限公司 | A kind of breaker automatic nailing inspection nail equipment |
| CN109909355A (en) * | 2019-04-12 | 2019-06-21 | 广东鼎力旋压装备有限公司 | High-intensitive main axle structure |
| CN109909354A (en) * | 2019-04-12 | 2019-06-21 | 广东鼎力旋压装备有限公司 | Enhanced main axle structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894784A (en) * | 2010-06-10 | 2010-11-24 | 中国电子科技集团公司第四十五研究所 | Wafer rotating plate device for special equipment of semiconductor |
| CN202768650U (en) * | 2012-09-11 | 2013-03-06 | 厦门天机自动化有限公司 | Main shaft mechanism with pre-tightening thrust bearing |
| JP2013082018A (en) * | 2011-10-06 | 2013-05-09 | Nsk Ltd | Spindle device of built-in motor system |
| CN203917947U (en) * | 2014-04-22 | 2014-11-05 | 浙江嘉力宝精机股份有限公司 | Chain digital control gear hobbing machine hobboing cutter mainshaft mechanism |
| WO2016143578A1 (en) * | 2015-03-10 | 2016-09-15 | Ntn株式会社 | Main shaft device |
| CN209223200U (en) * | 2018-11-19 | 2019-08-09 | 浙江万丰科技开发股份有限公司 | One kind can trailing type stability mainshaft mechanism |
-
2018
- 2018-11-19 CN CN201811373519.9A patent/CN109332732B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894784A (en) * | 2010-06-10 | 2010-11-24 | 中国电子科技集团公司第四十五研究所 | Wafer rotating plate device for special equipment of semiconductor |
| JP2013082018A (en) * | 2011-10-06 | 2013-05-09 | Nsk Ltd | Spindle device of built-in motor system |
| CN202768650U (en) * | 2012-09-11 | 2013-03-06 | 厦门天机自动化有限公司 | Main shaft mechanism with pre-tightening thrust bearing |
| CN203917947U (en) * | 2014-04-22 | 2014-11-05 | 浙江嘉力宝精机股份有限公司 | Chain digital control gear hobbing machine hobboing cutter mainshaft mechanism |
| WO2016143578A1 (en) * | 2015-03-10 | 2016-09-15 | Ntn株式会社 | Main shaft device |
| CN209223200U (en) * | 2018-11-19 | 2019-08-09 | 浙江万丰科技开发股份有限公司 | One kind can trailing type stability mainshaft mechanism |
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| Publication number | Publication date |
|---|---|
| CN109332732A (en) | 2019-02-15 |
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