CN216608289U - Cylindrical grinding head frame structure with higher precision and rigidity - Google Patents
Cylindrical grinding head frame structure with higher precision and rigidity Download PDFInfo
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- CN216608289U CN216608289U CN202122464462.7U CN202122464462U CN216608289U CN 216608289 U CN216608289 U CN 216608289U CN 202122464462 U CN202122464462 U CN 202122464462U CN 216608289 U CN216608289 U CN 216608289U
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Abstract
The utility model discloses an excircle grinding head frame structure with higher precision and rigidity, which comprises a box body, a shaft core, a radial stable bearing group and an axial stable bearing group, wherein the box body is provided with a groove; the shaft core is erected in the box body, the radial stable bearing group comprises a tail end cylindrical roller bearing and a front end cylindrical roller bearing, the tail end cylindrical roller bearing is arranged on a tail end bearing seat of the box body, and the tail end cylindrical roller bearing corresponds to the peripheral side face of the tail end of the shaft core; the front-end cylindrical roller bearing is arranged on a bearing seat at the front end of the box body and corresponds to the peripheral side face of the front end of the shaft core; the axial stable bearing group and the front end cylindrical roller bearing are arranged in parallel on the front end bearing seat of the box body and correspond to the peripheral side face of the front end of the shaft core.
Description
Technical Field
The utility model relates to the technical field of grinding machines, in particular to a cylindrical grinding head frame structure with higher precision and rigidity.
Background
The cylindrical grinding head frame is used for a workpiece clamping head frame of the high-precision cylindrical grinding machine and grinds by clamping the workpiece to rotate. When a workpiece rotates, if the axle center of the rotating shaft and the rotating axle center can not be kept completely consistent, the rotating center of the workpiece can be deviated, the grinding precision of the workpiece can be reduced, and the precision and consistency of machined parts can not be met, so that the rotating shaft needs to be ensured to stably keep high-precision rotation.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects in the prior art, the cylindrical grinding head frame structure with higher precision and rigidity provided by the utility model can stably keep the rotating shaft to rotate at high precision by arranging a plurality of groups of bearings, so that the grinding precision of the grinding machine is improved.
The technical scheme is as follows: in order to achieve the purpose, the cylindrical grinding head frame structure with higher precision and rigidity comprises a box body, a shaft core, a radial stable bearing group and an axial stable bearing group; the shaft core is erected in the box body, the radial stable bearing group comprises a tail end cylindrical roller bearing and a front end cylindrical roller bearing, the tail end cylindrical roller bearing is arranged on a tail end bearing seat of the box body, and the tail end cylindrical roller bearing corresponds to the peripheral side face of the tail end of the shaft core; the front-end cylindrical roller bearing is arranged on a bearing seat at the front end of the box body and corresponds to the peripheral side face of the front end of the shaft core; the axial stable bearing group and the front end cylindrical roller bearing are arranged in parallel on the front end bearing seat of the box body and correspond to the peripheral side face of the front end of the shaft core.
Further, the axial stable bearing set adopts an angular contact bearing.
Furthermore, the tail end cylindrical roller bearing and the front end cylindrical roller bearing adopt double-row cylindrical roller bearings.
Furthermore, the front end of the shaft core is inserted and connected with a tip flange, the shaft core is driven by a belt pulley, and the belt pulley is supported by a deep groove ball bearing.
Furthermore, the bottom of the box body is provided with an adjustable base.
Further, the box body is provided with a shaft locking nut, and the shaft locking nut corresponds to the tail end of the shaft core.
Has the advantages that: the cylindrical grinding head frame structure with higher precision and rigidity can stably keep the high-precision rotation of the rotating shaft by arranging a plurality of groups of bearings, so that the grinding precision of the grinding machine is improved, and the cylindrical grinding head frame structure comprises the following technical effects:
1) the high precision and the high rigidity of the axial core in the radial direction can be ensured by arranging the tail end cylindrical roller bearing and the front end cylindrical roller bearing at the front end and the rear end;
2) the axial stable bearing set adopts the angular contact bearing with a large contact angle arrangement, so that the axial high precision and the axial high rigidity of the shaft core can be ensured.
Drawings
FIG. 1 is a cross-sectional structural view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figure 1: an excircle grinding head frame structure with higher precision and rigidity comprises a box body 1, a shaft core 2, a radial stable bearing group and an axial stable bearing group 3; the shaft core 2 is erected in the box body 1, the radial stable bearing group comprises a tail end cylindrical roller bearing 31 and a front end cylindrical roller bearing 32, the tail end cylindrical roller bearing 31 is arranged on a tail end bearing seat of the box body 1, and the tail end cylindrical roller bearing 31 corresponds to the peripheral side face of the tail end of the shaft core 2; the front end cylindrical roller bearing 32 is arranged on a front end bearing seat of the box body 1, and the front end cylindrical roller bearing 32 corresponds to the peripheral side face of the front end of the shaft core 2; the axial stable bearing group 3 and the front end cylindrical roller bearing 32 are arranged in parallel on the front end bearing seat of the box body 1 and correspond to the peripheral side surface of the front end of the shaft core 2; the rear cylindrical roller bearing 31 and the front cylindrical roller bearing 32 are respectively arranged at the front end and the rear end, so that the radial high precision and high rigidity of the shaft core 2 can be ensured.
The axial stable bearing group 3 adopts an angular contact bearing; the axial stable bearing group 3 adopts an angular contact bearing with a large contact angle arrangement, so that the axial high precision and high rigidity of the shaft core 2 can be ensured.
The tail end cylindrical roller bearing 31 and the front end cylindrical roller bearing 32 adopt double-row cylindrical roller bearings.
The front end of the shaft core 2 is inserted and connected with a tip flange 21, a belt pulley 22 is arranged on the peripheral side of the shaft core 2 for driving, and the belt pulley 22 is supported by a deep groove ball bearing 23; this structure can adopt two kinds of grinding modes, the first: the double-center grinding mode is characterized in that a spindle 2 is locked by a spindle locking nut 12 and does not rotate, a driving pin between a belt pulley 22 and the spindle 2 is disconnected, the belt pulley 22 is supported by a deep groove ball bearing 23 when rotating, and a driving rod is arranged on the belt pulley 22 and used for stirring a workpiece arranged on the center of a center flange 21 to rotate; and the second method comprises the following steps: the chuck grinding mode is that the chuck is arranged on the tip flange 21 and clamps a workpiece, the shaft locking nut 12 is loosened, the mandrel 2 can rotate freely, a driving pin is inserted between the belt pulley 22 and the mandrel 2 along the radial direction, and the belt pulley 22 can drive the mandrel 2 to enable the tip flange 21 to rotate to grind.
The bottom of the box body 1 is provided with an adjustable base 11.
The box body 1 is provided with a shaft locking nut 12, and the shaft locking nut 12 corresponds to the tail end of the shaft core 2.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.
Claims (6)
1. The utility model provides a precision and higher cylindrical grinder headstock structure of rigidity which characterized in that: comprises a box body (1), a shaft core (2), a radial stable bearing group and an axial stable bearing group (3); the shaft core (2) is erected inside the box body (1), the radial stable bearing set comprises a tail end cylindrical roller bearing (31) and a front end cylindrical roller bearing (32), the tail end cylindrical roller bearing (31) is arranged on a tail end bearing seat of the box body (1), and the tail end cylindrical roller bearing (31) corresponds to the peripheral side face of the tail end of the shaft core (2); the front-end cylindrical roller bearing (32) is arranged on a front-end bearing seat of the box body (1), and the front-end cylindrical roller bearing (32) corresponds to the front-end peripheral side surface of the shaft core (2); the axial stable bearing group (3) and the front end cylindrical roller bearing (32) are arranged in parallel on a front end bearing seat of the box body (1) and correspond to the peripheral side face of the front end of the shaft core (2).
2. A cylindrical grinding head frame structure with higher precision and rigidity according to claim 1, wherein: the axial stable bearing set (3) adopts an angular contact bearing.
3. A cylindrical grinding head frame structure with higher precision and rigidity according to claim 1, wherein: the tail end cylindrical roller bearing (31) and the front end cylindrical roller bearing (32) adopt double-row cylindrical roller bearings.
4. A cylindrical grinding head frame structure with higher precision and rigidity according to claim 1, wherein: the front end of the shaft core (2) is inserted and connected with a tip flange (21), the shaft core (2) is driven by a belt pulley (22), and the belt pulley (22) is supported by a deep groove ball bearing (23).
5. A cylindrical grinding head frame structure with higher precision and rigidity according to claim 1, wherein: the bottom of the box body (1) is provided with an adjustable base (11).
6. A cylindrical grinding head frame structure with higher precision and rigidity according to claim 1, wherein: the box body (1) is provided with a shaft locking nut (12), and the shaft locking nut (12) corresponds to the tail end of the shaft core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122464462.7U CN216608289U (en) | 2021-10-13 | 2021-10-13 | Cylindrical grinding head frame structure with higher precision and rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122464462.7U CN216608289U (en) | 2021-10-13 | 2021-10-13 | Cylindrical grinding head frame structure with higher precision and rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216608289U true CN216608289U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122464462.7U Active CN216608289U (en) | 2021-10-13 | 2021-10-13 | Cylindrical grinding head frame structure with higher precision and rigidity |
Country Status (1)
| Country | Link |
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| CN (1) | CN216608289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116512019A (en) * | 2023-06-26 | 2023-08-01 | 华辰精密装备（昆山）股份有限公司 | High-precision tailstock center structure and roll grinder |
-
2021
- 2021-10-13 CN CN202122464462.7U patent/CN216608289U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116512019A (en) * | 2023-06-26 | 2023-08-01 | 华辰精密装备（昆山）股份有限公司 | High-precision tailstock center structure and roll grinder |
| CN116512019B (en) * | 2023-06-26 | 2023-09-26 | 华辰精密装备（昆山）股份有限公司 | High-precision tailstock center structure and roll grinder |
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