CN202344329U - Protective mechanism for thrust bearing of tailstock of machine tool - Google Patents
Protective mechanism for thrust bearing of tailstock of machine tool Download PDFInfo
- Publication number
- CN202344329U CN202344329U CN2011204460364U CN201120446036U CN202344329U CN 202344329 U CN202344329 U CN 202344329U CN 2011204460364 U CN2011204460364 U CN 2011204460364U CN 201120446036 U CN201120446036 U CN 201120446036U CN 202344329 U CN202344329 U CN 202344329U
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- CN
- China
- Prior art keywords
- thrust bearing
- tailstock
- machine tool
- primary spindle
- outer gland
- 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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Abstract
The utility model belongs to the technical field of tailstocks of machine tools, and particularly relates to a protective mechanism for a thrust bearing of a tailstock of a machine tool. A thermal compensation mechanism is provided for the tailstock of the machine tool by an inner ring sleeve (3), 4 to 12 groups of disc springs (4), an outer pressing sleeve (5), a spring (9), a rounding top pillar (10), a plane bearing (12) and a locking nut (8). The protective mechanism has a simple structure, is reliable in operation, and can eliminate the damage of axial force caused by thermal deformation of workpieces to the thrust bearing of the tailstock of the machine tool during the machining of the workpieces, improve the machining accuracy of the machine tool and prevent the machine tool from being damaged.
Description
One, affiliated field:
The utility model belongs to the tailstock tool technical field, particularly a kind of tailstock tool thrust bearing protection mechanism.
Two, background technology:
Lathe is when the machining large shaft-like workpiece at present; The axial force that the workpiece thermal deformation produces greater than the pressure of tailstock to workpiece after; Because tailstock tool do not have thermal compensation mechanism, cause damage through regular meeting to the tailstock thrust bearing, make machine finish can not satisfy processing request or cause lathe to damage.
Three, summary of the invention:
The problems referred to above that the utility model exists to present tailstock tool; Proposed a kind of novel, reliably, can bear big axially load; The novel tailstock structure that thermal compensation mechanism is arranged; The utility model is intended the technical scheme of taking: a kind of tailstock tool thrust bearing protection mechanism; Its primary spindle by tailstock tool (1), thrust bearing (2), ring flange (7), feather key (13) are formed; It is characterized in that: the primary spindle (1) that inner ring sleeve (3) is enclosed within tailstock tool is gone up to be evenly distributed near, 4～12 groups of dish springs (4) on the circumference of inner ring sleeve (3) with thrust bearing (2) and is also compressed with outer gland (5), and bolt (6) passes dish spring (4) and through being threaded outer gland (5) is fixed on the inner ring sleeve (3); Have 4～12 counterbores on the periphery of outer gland (5) near primary spindle (1); Spring (9) and dome post (10) are installed in the counterbore, and plane bearing (12) is enclosed within primary spindle (1) and upward and with dome post (10) contacts, and plane bearing (12) is fixed on the primary spindle (1) with locking nut (8) through the collar (11); The rear end of outer gland (5) abuts against the front end of ring flange (7), and the cylindrical of outer gland (5) has gathering sill and matches with the feather key (13) of tailstock tool.The utility model is achieved in that when the processing work the protection of tailstock tool thrust bearing; Workpiece extends because of the heat that processing produces, and makes the primary spindle (1) of tailstock tool receive thrust backward, the transmission of warp and primary spindle (1) component; This thrust is applied on the inner ring sleeve (3) by thrust bearing (2) at last; Inner ring sleeve (3) compact disc spring (4), so far, thrust bearing (2) moves backward; Primary spindle (1) is able to extend backward, reaches the purpose to the protection of tailstock thrust bearing (2).When receiving thermal stretching, spring (9) keeps the pressure of thrust bearing (2) with dome post (10), plane bearing (12), the collar (11) ejection backward at primary spindle (1).When there was not thrust in tailstock, the pretightning force that plane bearing (12) leans on locking nut (8) compression spring (9) to provide in advance remained on original installation site, thereby has guaranteed the reliability of thrust bearing (2), had avoided grinding the phenomenon of hindering and damaging in the past.The utility model is applicable to lathe series such as common heavy horizontal lathe, CNC heavy-duty horizontal lathe, common roll lathe, numerical control roll lathe, turning center, turning milling center.The utlity model has simple in structure; Reliable operation, in the time of can eliminating processing work because the axial force that the thermal deformation of workpiece produces to the damage of tailstock tool thrust bearing, provides a kind of thermal compensation mechanism to tailstock tool; Improved the machining accuracy of lathe, prevented that lathe from damaging.
Four, description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is Fig. 1 partial enlarged drawing
Among the figure: 1, primary spindle 2, thrust bearing 3, inner ring sleeve 4, dish spring 5, outer gland 6, bolt 7, ring flange 8, locking nut 9, spring 10, dome post 11, the collar 12, plane bearing 13, feather key
Five, the specific embodiment:
Embodiment 1: a kind of tailstock tool thrust bearing protection mechanism; It is made up of primary spindle (1), thrust bearing (2), ring flange (7), feather key (13); The primary spindle (1) that inner ring sleeve (3) is enclosed within tailstock tool go up and thrust bearing (2) near; 12 groups of dish springs (4) are evenly distributed on the circumference of inner ring sleeve (3) and compress with outer gland (5); Bolt (6) passes dish spring (4) and through being threaded outer gland (5) is fixed on the inner ring sleeve (3), has 4 counterbores on the periphery near primary spindle (1) of outer gland (5), and spring (9) and dome post (10) are installed in the counterbore; Plane bearing (12) is enclosed within primary spindle (1) and upward and with dome post (10) contacts; Plane bearing (12) is fixed on the primary spindle (1) with locking nut (8) through the collar (11), and the rear end of outer gland (5) abuts against the front end of ring flange (7), and the cylindrical of outer gland (5) has gathering sill and matches with the feather key (13) of tailstock tool.
Embodiment 2: a kind of tailstock tool thrust bearing protection mechanism; It is made up of primary spindle (1), thrust bearing (2), ring flange (7), feather key (13); The primary spindle (1) that inner ring sleeve (3) is enclosed within tailstock tool go up and thrust bearing (2) near; 4 groups of dish springs (4) are evenly distributed on the circumference of inner ring sleeve (3) and compress with outer gland (5); Bolt (6) passes dish spring (4) and through being threaded outer gland (5) is fixed on the inner ring sleeve (3), has 12 counterbores on the periphery near primary spindle (1) of outer gland (5), and spring (9) and dome post (10) are installed in the counterbore; Plane bearing (12) is enclosed within primary spindle (1) and upward and with dome post (10) contacts; Plane bearing (12) is fixed on the primary spindle (1) with locking nut (8) through the collar (11), and the rear end of outer gland (5) abuts against the front end of ring flange (7), and the cylindrical of outer gland (5) has gathering sill and matches with the feather key (13) of tailstock tool.
Claims (1)
1. tailstock tool thrust bearing protection mechanism; It is made up of primary spindle (1), thrust bearing (2), ring flange (7), feather key (13); It is characterized in that: the primary spindle (1) that inner ring sleeve (3) is enclosed within tailstock tool go up and thrust bearing (2) near; 4～12 groups of dish springs (4) are evenly distributed on the circumference of inner ring sleeve (3) and compress with outer gland (5); Bolt (6) passes dish spring (4) and through being threaded outer gland (5) is fixed on the inner ring sleeve (3); Have 4～12 counterbores on the periphery of outer gland (5) near primary spindle (1); Spring (9) and dome post (10) are installed in the counterbore, and plane bearing (12) is enclosed within primary spindle (1) and upward and with dome post (10) contacts, and plane bearing (12) is fixed on the primary spindle (1) with locking nut (8) through the collar (11); The rear end of outer gland (5) abuts against the front end of ring flange (7), and the cylindrical of outer gland (5) has gathering sill and matches with the feather key (13) of tailstock tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204460364U CN202344329U (en) | 2011-11-13 | 2011-11-13 | Protective mechanism for thrust bearing of tailstock of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204460364U CN202344329U (en) | 2011-11-13 | 2011-11-13 | Protective mechanism for thrust bearing of tailstock of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344329U true CN202344329U (en) | 2012-07-25 |
Family
ID=46533359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204460364U Expired - Fee Related CN202344329U (en) | 2011-11-13 | 2011-11-13 | Protective mechanism for thrust bearing of tailstock of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202344329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605410A (en) * | 2019-09-30 | 2019-12-24 | 长江师范学院 | Tight self-adaptation in top tailstock system of marcing |
-
2011
- 2011-11-13 CN CN2011204460364U patent/CN202344329U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605410A (en) * | 2019-09-30 | 2019-12-24 | 长江师范学院 | Tight self-adaptation in top tailstock system of marcing |
| CN110605410B (en) * | 2019-09-30 | 2020-06-12 | 长江师范学院 | Tight self-adaptation in top tailstock system of marcing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |