CN114769630A - Spindle structure of centerless lathe sizing device - Google Patents
Spindle structure of centerless lathe sizing device Download PDFInfo
- Publication number
- CN114769630A CN114769630A CN202210219170.3A CN202210219170A CN114769630A CN 114769630 A CN114769630 A CN 114769630A CN 202210219170 A CN202210219170 A CN 202210219170A CN 114769630 A CN114769630 A CN 114769630A
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- sleeve
- spindle
- ring
- main shaft
- mounting groove
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- 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
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a spindle structure of a sizing device of a centerless lathe, which comprises a spindle shell and a rotating part rotatably arranged in the spindle shell; the main shaft shell is internally provided with a mounting shaft hole penetrating through the main shaft shell corresponding to the rotating piece, the mounting shaft hole comprises a first mounting groove, a middle communicating shaft hole and a second mounting groove which are sequentially arranged, the diameter of the first mounting groove is larger than that of the middle communicating shaft hole, and the diameter of the middle communicating shaft hole is larger than that of the second mounting groove; compared with the spindle of the traditional sizing device, the spindle can be disassembled from one side when a fault occurs, the situation that the spindle is not easy to separate due to the fact that a bearing is blocked is avoided, meanwhile, the spindle is convenient to assemble and disassemble, and especially under the conditions that the device is complex and the space is limited, the assembling and disassembling efficiency can be greatly improved.
Description
Technical Field
The invention belongs to the technical field of centerless lathes, and particularly relates to a spindle structure of a sizing device of a centerless lathe.
Background
A centerless lathe, namely a peeling machine, is main equipment for producing and processing bright silver bars, and a sizing device matched with the centerless lathe is mainly used for straightening raw materials, releasing stress and cold-rolling the raw materials to the diameter required by the process before peeling. The stable operation of the device is also an important guarantee for the product quality and the yield, and if the failure rate is high, the production efficiency, the product quality and subsequent equipment are seriously affected.
As shown in fig. 4 of the specification, a main shaft of a sizing device in the prior art includes a housing 14, a main shaft 142 passes through the housing 14, a first bearing 143 is sleeved on one end of the main shaft 142, a second bearing 144 is sleeved on the other end of the main shaft 142, the first bearing 143 and the second bearing 144 are respectively disposed in bearing mounting grooves 141 at two ends of the housing 14, when a fault such as bearing locking occurs during operation, at least one of bearings at two ends of the main shaft 142 needs to be removed, and then the main shaft 142 can be separated from the housing 14, which results in difficulty in removal after the fault occurs, and in addition, when the bearing is mounted, the bearings are also mounted from two ends of the housing 14, which also results in difficulty in mounting.
Disclosure of Invention
The invention aims to provide a spindle structure of a centerless lathe sizing device, which solves the problems that in the prior art, a spindle of the sizing device is difficult to disassemble after a fault occurs, and in addition, bearings are required to be installed from two ends of a shell in the process of installation, so that the installation is difficult.
The purpose of the invention can be realized by the following technical scheme:
a spindle structure of a sizing device of a centerless lathe comprises a spindle shell and a rotating part rotatably mounted in the spindle shell;
the main shaft shell is internally provided with a mounting shaft hole penetrating through the main shaft shell corresponding to the rotating piece, the mounting shaft hole comprises a first mounting groove, a middle communicating shaft hole and a second mounting groove which are sequentially arranged, the diameter of the first mounting groove is larger than that of the middle communicating shaft hole, and the diameter of the middle communicating shaft hole is larger than that of the second mounting groove;
the rotating part comprises a rotating main shaft, a first supporting bearing and a second supporting bearing are sleeved on the rotating main shaft, the first supporting bearing is positioned in the first mounting groove, and the second supporting bearing is positioned in the second mounting groove;
the end of the main shaft shell provided with the first mounting groove is fixedly provided with a fixing flange, and the fixing flange is propped against the outer ring of the first support bearing.
As a further scheme of the invention, a first sleeve is sleeved on the part, positioned in the middle communicating shaft hole, of the rotating main shaft, one end of the first sleeve is propped against an inner ring of the first supporting bearing, and the other end of the first sleeve is propped against an inner ring of the second supporting bearing.
As a further aspect of the invention, the diameter of the outer ring of the second sleeve is equal to the diameter of the intermediate communicating shaft hole.
As a further scheme of the present invention, a first sleeve ring is disposed between the first sleeve and the second support bearing, one end of the first sleeve ring is abutted against the first sleeve, the other end of the first sleeve ring is abutted against an inner ring of the second support bearing, and the first sleeve ring is sleeved on the rotation main shaft.
As a further scheme of the invention, a second sleeve is further arranged in the middle communication shaft hole, one end of the second sleeve is abutted against the outer ring of the first support bearing, and the other end of the second sleeve is abutted against the outer ring of the second support bearing.
As a further scheme of the invention, the diameter of the outer ring of the second sleeve ring is equal to that of the first mounting groove.
As a further scheme of the present invention, a second sleeve ring is disposed at the bottom of the first mounting groove, the second sleeve ring is sleeved on the rotating main shaft, one end of the second sleeve ring is abutted against the outer ring of the first support bearing, and the other end of the second sleeve ring is abutted against the bottom of the first mounting groove.
As a further scheme of the invention, one end of the rotating main shaft, which is positioned in the second mounting groove, is provided with a thread structure, the rotating main shaft is in locking fit with the locking nut through the thread structure, a fourth lantern ring is arranged between the locking nut and the second supporting bearing, one end of the fourth lantern ring is abutted against an inner ring of the second supporting bearing, and the other end of the fourth lantern ring is abutted against the locking nut;
and a third sleeve ring is arranged in the second mounting groove and used for positioning the outer ring of the second support bearing.
As a further scheme of the invention, the spindle protection device further comprises a protective cover, the protective cover is fixedly arranged at one end of the spindle shell, which is provided with the second mounting groove, through bolts, one end of a third lantern ring is propped against an outer ring of the second supporting bearing, and the other end of the third lantern ring is propped against the protective cover.
The invention has the beneficial effects that:
(1) compared with the spindle of the traditional sizing device, the rotating spindle can be disassembled from one side when a fault occurs, so that the situation that the rotating spindle is not easy to separate due to the fact that a bearing is clamped is avoided, the rotating spindle is convenient to assemble and disassemble, and especially under the conditions that the device is complex and the space is limited, the assembling and disassembling efficiency can be greatly improved;
(2) in addition, the inner ring and the outer ring of the supporting main shaft can be supported well and stably, and the situation that the supporting bearing is laterally moved in the working process to influence the stability of the main shaft structure of the sizing device is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the spindle structure of the centerless lathe sizing apparatus of the present invention;
FIG. 2 is a schematic view of the construction of the spindle housing of the present invention;
FIG. 3 is a schematic view of the rotating member of the present invention;
FIG. 4 is a simplified structural schematic of a sizing assembly spindle of the prior art;
in the figure: 1. rotating the main shaft; 2. a fixed flange; 3. a first support bearing; 4. a second collar; 5. a first sleeve; 6. a second sleeve; 7. a first collar; 8. a second support bearing; 9. a third collar; 10. a fourth collar; 11. locking the nut; 12. a spindle housing; 13. installing the shaft hole; 14. a housing; 15. a protective cover; 131. a first mounting groove; 132. the middle part is communicated with the shaft hole; 133. a second mounting groove; 141. a bearing mounting groove; 142. a main shaft; 143. a first bearing; 144. a second bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A spindle structure of a centerless lathe sizing device is shown in figures 1 to 3 and comprises a spindle shell 12 and a rotating part rotatably mounted in the spindle shell 12;
the main shaft shell 12 is internally provided with a mounting shaft hole 13 penetrating through the main shaft shell 12 corresponding to the rotating part, the mounting shaft hole 13 comprises a first mounting groove 131, a middle communicating shaft hole 132 and a second mounting groove 133 which are sequentially arranged, wherein the diameter of the first mounting groove 131 is larger than that of the middle communicating shaft hole 132, and the diameter of the middle communicating shaft hole 132 is larger than that of the second mounting groove 133, namely the diameters of the first mounting groove 131, the middle communicating shaft hole 132 and the second mounting groove 133 are sequentially decreased, so that the subsequent rotating part can be conveniently mounted and dismounted at one time;
the rotating part comprises a rotating main shaft 1, a first supporting bearing 3 and a second supporting bearing 8 are sleeved on the rotating main shaft 1, wherein the first supporting bearing 3 is positioned in the first installation groove 131, the second supporting bearing 8 is positioned in the second installation groove 133, and correspondingly, the diameter of the second supporting bearing 8 is smaller than that of the first supporting bearing 3;
the fixing flange 2 is fixedly mounted at one end of the main shaft shell 12, which is provided with the first mounting groove 131, and the fixing flange 2 is abutted against the outer ring of the first support bearing 3, in addition, the fixing flange 2 can also play a role in protection, and shields the first support bearing 3, so that the safety accident caused by the introduction or twisting of external sundries is avoided;
a first sleeve 5 is sleeved on the part, positioned in the middle communicated shaft hole 132, of the rotating main shaft 1, one end of the first sleeve 5 is propped against the inner ring of the first support bearing 3, and the other end of the first sleeve 5 is propped against the inner ring of the second support bearing 8;
in one embodiment of the invention, in order to adapt to the structure of the main shaft or facilitate the disassembly and assembly of the first sleeve 5, a first sleeve ring 7 is arranged between the first sleeve 5 and the second support bearing 8, one end of the first sleeve ring 7 is abutted against the first sleeve 5, the other end of the first sleeve ring 7 is abutted against the inner ring of the second support bearing 8, and the first sleeve ring 7 is sleeved on the rotating main shaft 1;
the second sleeve 6 is further arranged in the middle communicating shaft hole 132, the diameter of the outer ring of the second sleeve 6 is equal to that of the middle communicating shaft hole 132, the second sleeve 6 can be limited and positioned through the middle communicating shaft hole 132, the second sleeve 6 does not need to be positioned intentionally during installation, the second sleeve 6 is sleeved on the first sleeve 5, one end of the second sleeve 6 is abutted against the outer ring of the first support bearing 3, and the other end of the second sleeve 6 is abutted against the outer ring of the second support bearing 8;
in order to ensure the structural strength of the second sleeve 6, facilitate the replacement of parts, and improve the universality of each part, in an embodiment of the present invention, the bottom of the first installation groove 131 is provided with a second collar 4, the second collar 4 is sleeved on the rotating spindle 1, one end of the second collar 4 is abutted against the outer ring of the first support bearing 3, and the other end of the second collar 4 is abutted against the bottom of the first installation groove 131;
the diameter of the outer ring of the second sleeve ring 4 is equal to that of the first mounting groove 131, the second sleeve ring 4 can be supported and positioned through the first mounting groove 131, and the second sleeve ring 4 does not need to be positioned intentionally during mounting;
it should be noted that the bottom of the first installation groove 131 refers to a step structure formed by the connection between the first installation groove 131 and the middle communication shaft hole 132 due to different diameters;
one end of the rotating main shaft 1, which is positioned in the second mounting groove 133, is provided with a threaded structure, the rotating main shaft 1 is in locking fit with the locking nut 11 through the threaded structure, a fourth lantern ring 10 is arranged between the locking nut 11 and the second support bearing 8, one end of the fourth lantern ring 10 is abutted against the inner ring of the second support bearing 8, and the other end of the fourth lantern ring 10 is abutted against the locking nut 11;
a third collar 9 is arranged in the second mounting groove 133, and the third collar 9 is used for positioning an outer ring of the second support bearing 8;
the third collar 9 is fixedly arranged or non-fixedly arranged in the second mounting groove 133;
the spindle structure of the centerless lathe sizing device further comprises a protective cover 15, the protective cover 15 is fixedly mounted at one end, provided with the second mounting groove 133, of the spindle housing 12 through a bolt, when the third lantern ring 9 is in a non-fixed setting, one end of the third lantern ring 9 is abutted to the outer ring of the second supporting bearing 8, and the other end of the third lantern ring 9 is abutted to the protective cover 15.
The mounting method of the spindle structure of the centerless lathe sizing device comprises one-way mounting and two-way mounting, wherein the one-way mounting method comprises the following steps:
fixing the protection cover 15 on the spindle housing 12;
putting the third collar 9 into the mounting shaft hole 13 to enable the third collar 9 to reach the bottommost part;
sequentially sleeving a first support bearing 3, a second sleeve 4, a first sleeve 5, a first sleeve 7, a second sleeve 6, a second support bearing 8, a fourth sleeve 10 and a locking nut 11 on a rotating main shaft 1, and plugging the rotating main shaft 1 into an installation shaft hole 13;
fixing the fixing flange 2 on the protective cover 15;
the bidirectional installation method comprises the following steps:
sequentially sleeving a first support bearing 3, a second sleeve 4, a first sleeve 5, a first sleeve 7, a second sleeve 6, a second support bearing 8, a fourth sleeve 10 and a locking nut 11 on a rotating main shaft 1, and plugging the rotating main shaft 1 into an installation shaft hole 13;
fixing the fixing flange 2 on the protective cover 15;
a third collar 9 is added to the second mounting groove 133;
the shield 15 is fixed to the spindle housing 12.
The disassembling method comprises the following steps:
the fixed flange 2 is disassembled to be separated from the protective cover 15;
the entire rotor is directly withdrawn from the right to the left.
Compared with the spindle of the traditional sizing device, the structure can disassemble the rotating part from one direction, can disassemble the rotating spindle 1 from one side when a fault occurs, avoids the situation that the rotating spindle is not easy to separate due to the fact that a bearing is blocked, is convenient to assemble and disassemble, and can greatly improve the assembling and disassembling efficiency especially under the conditions of complex device and limited space;
in addition, the inner ring and the outer ring of the supporting main shaft can be supported well and stably, and the situation that the supporting bearing is laterally moved in the working process to influence the stability of the main shaft structure of the sizing device is avoided.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. Centerless lathe sizing device main shaft structure, including main shaft shell (12) and main shaft shell (12) internal rotation installation's rotation piece, its characterized in that:
the main shaft shell (12) is internally provided with an installation shaft hole (13) penetrating through the main shaft shell (12) corresponding to the rotating piece, the installation shaft hole (13) comprises a first installation groove (131), a middle communication shaft hole (132) and a second installation groove (133) which are sequentially arranged, the diameter of the first installation groove (131) is larger than that of the middle communication shaft hole (132), and the diameter of the middle communication shaft hole (132) is larger than that of the second installation groove (133);
the rotating part comprises a rotating main shaft (1), a first supporting bearing (3) and a second supporting bearing (8) are sleeved on the rotating main shaft (1), the first supporting bearing (3) is positioned in the first mounting groove (131), and the second supporting bearing (8) is positioned in the second mounting groove (133);
the end of the main shaft shell (12) provided with the first mounting groove (131) is fixedly provided with a fixed flange (2), and the fixed flange (2) is propped against the outer ring of the first support bearing (3).
2. The centerless lathe sizing device spindle structure according to claim 1, wherein a first sleeve (5) is sleeved on a part of the rotating spindle (1) in the middle communication shaft hole (132), one end of the first sleeve (5) is abutted against an inner ring of the first support bearing (3), and the other end of the first sleeve (5) is abutted against an inner ring of the second support bearing (8).
3. The centerless lathe sizing apparatus spindle structure according to claim 2, wherein the outer ring diameter of the second sleeve (6) is equal to the diameter of the intermediate communication shaft hole (132).
4. A centerless lathe sizing device main shaft structure according to claim 3, wherein a first sleeve ring (7) is arranged between the first sleeve (5) and the second support bearing (8), one end of the first sleeve ring (7) is abutted against the first sleeve (5), the other end of the first sleeve ring (7) is abutted against an inner ring of the second support bearing (8), and the first sleeve ring (7) is sleeved on the rotating main shaft (1).
5. A centerless lathe sizing device main shaft structure according to claim 4, wherein a second sleeve (6) is further arranged in the intermediate communication shaft hole (132), one end of the second sleeve (6) is abutted with the outer ring of the first support bearing (3), and the other end of the second sleeve (6) is abutted with the outer ring of the second support bearing (8).
6. The centerless lathe sizing spindle structure according to claim 5, wherein the outer ring diameter of the second collar (4) is equal to the diameter of the first mounting groove (131).
7. The centerless lathe sizing device spindle structure according to claim 6, wherein a second sleeve ring (4) is arranged at the bottom of the first mounting groove (131), the second sleeve ring (4) is sleeved on the rotating spindle (1), one end of the second sleeve ring (4) is abutted against the outer ring of the first support bearing (3), and the other end of the second sleeve ring (4) is abutted against the bottom of the first mounting groove (131).
8. The centerless lathe sizing device spindle structure according to claim 7, wherein one end of the rotating spindle (1) in the second mounting groove (133) is provided with a thread structure, the rotating spindle (1) is in locking fit with a lock nut (11) through the thread structure, a fourth lantern ring (10) is arranged between the lock nut (11) and the second support bearing (8), one end of the fourth lantern ring (10) is abutted against an inner ring of the second support bearing (8), and the other end of the fourth lantern ring (10) is abutted against the lock nut (11);
and a third lantern ring (9) is arranged in the second mounting groove (133), and the third lantern ring (9) is used for positioning the outer ring of the second support bearing (8).
9. The centerless lathe sizing device spindle structure according to claim 8, further comprising a shield (15), wherein the shield (15) is fixedly mounted on one end of the spindle housing (12) provided with the second mounting groove (133) by a bolt, one end of the third collar (9) abuts against the outer ring of the second support bearing (8), and the other end of the third collar (9) abuts against the shield (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210219170.3A CN114769630A (en) | 2022-03-08 | 2022-03-08 | Spindle structure of centerless lathe sizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210219170.3A CN114769630A (en) | 2022-03-08 | 2022-03-08 | Spindle structure of centerless lathe sizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114769630A true CN114769630A (en) | 2022-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210219170.3A Pending CN114769630A (en) | 2022-03-08 | 2022-03-08 | Spindle structure of centerless lathe sizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114769630A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801342Y (en) * | 2005-07-12 | 2006-08-02 | 西安北村精密机械有限公司 | Main shaft device of front end driving precision lathe |
| CN201613356U (en) * | 2010-02-23 | 2010-10-27 | 天水星火机床有限责任公司 | High-speed plain spindle structure |
| CN204353490U (en) * | 2014-12-29 | 2015-05-27 | 朱桂林 | A kind of high accuracy plain spindle structure |
| CN109047799A (en) * | 2018-10-28 | 2018-12-21 | 吉林大学 | With the milling spindle device for assembling a variety of chuck functions |
| CN208261872U (en) * | 2018-04-03 | 2018-12-21 | 沈阳巨浪精密机械制造有限公司 | A kind of lathe spindle gas sealing mechanism |
| CN209632137U (en) * | 2019-03-18 | 2019-11-15 | 上海竞格机床有限公司 | A kind of numerically controlled lathe main shaft |
| WO2020025828A1 (en) * | 2018-08-03 | 2020-02-06 | Franz Kessler Gmbh | Motor spindle for a machine, particularly for a machine tool, with braced bearing arrangement, and method for mounting a motor spindle of this kind |
-
2022
- 2022-03-08 CN CN202210219170.3A patent/CN114769630A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801342Y (en) * | 2005-07-12 | 2006-08-02 | 西安北村精密机械有限公司 | Main shaft device of front end driving precision lathe |
| CN201613356U (en) * | 2010-02-23 | 2010-10-27 | 天水星火机床有限责任公司 | High-speed plain spindle structure |
| CN204353490U (en) * | 2014-12-29 | 2015-05-27 | 朱桂林 | A kind of high accuracy plain spindle structure |
| CN208261872U (en) * | 2018-04-03 | 2018-12-21 | 沈阳巨浪精密机械制造有限公司 | A kind of lathe spindle gas sealing mechanism |
| WO2020025828A1 (en) * | 2018-08-03 | 2020-02-06 | Franz Kessler Gmbh | Motor spindle for a machine, particularly for a machine tool, with braced bearing arrangement, and method for mounting a motor spindle of this kind |
| CN109047799A (en) * | 2018-10-28 | 2018-12-21 | 吉林大学 | With the milling spindle device for assembling a variety of chuck functions |
| CN209632137U (en) * | 2019-03-18 | 2019-11-15 | 上海竞格机床有限公司 | A kind of numerically controlled lathe main shaft |
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