CN213258682U - Flexible workpiece shaft for groove grinding machine - Google Patents
Flexible workpiece shaft for groove grinding machine Download PDFInfo
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- CN213258682U CN213258682U CN202022130083.XU CN202022130083U CN213258682U CN 213258682 U CN213258682 U CN 213258682U CN 202022130083 U CN202022130083 U CN 202022130083U CN 213258682 U CN213258682 U CN 213258682U
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- shaft
- elastic
- flexible
- grinding machine
- flexible workpiece
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Abstract
The utility model belongs to the technical field of the bearing is made, concretely relates to flexible work piece axle for channel grinding machine. The flexible workpiece shaft for the channel grinding machine is a flexible structure formed by three sections of shafts; the flexible workpiece shaft has three sections: the device comprises a shaft I supported by a rolling bearing, a shaft II supported by an air bearing, and an elastic shaft connected between the shaft I and the shaft II; the shaft II is an air floating shaft; the elastic shaft is coaxially arranged with the shaft I and the shaft II; the shaft I, the shaft II and the elastic shaft are hollow shafts; the flexible workpiece shaft is provided with a cooling water pipe; the cooling water pipe penetrates through the shaft I, the shaft II and the elastic shaft and is in clearance fit with the shaft I, the shaft II and the elastic shaft. The utility model discloses an axial that produces when the elastic shaft will be installed is to power release, reduces the influence that the belt pulley produced to the air supporting shaft when rotating to have inside outside cooling effect, thereby the coolant liquid can not get into the inside air supporting shaft necrosis that leads to yet of air supporting shaft like this.
Description
Technical Field
The utility model belongs to the technical field of the bearing is made, concretely relates to flexible work piece axle for channel grinding machine.
Background
The precision and stability of each part of the groove grinder have different influences on the machining precision of the groove of the bearing ring. Under the condition that the precision and stability indexes of other parts of the groove grinding machine are certain, the quality of a workpiece shaft has great direct influence on the processing quality of a bearing ring groove; improvements in the workpiece axis to improve the quality of the precision with which the raceway grinder machines the bearing raceway are concerned are discussed.
When the bearing groove is ground, the workpiece shaft of the bearing groove grinding machine shows that the axial front-back displacement of the rotating shaft of the workpiece shaft is large, the axial movement of the rotating shaft of the workpiece shaft during rotation directly affects the groove position of the bearing ring, and the radial deflection of the rotating shaft of the workpiece shaft directly affects the precision of the groove of the bearing ring during grinding by affecting the movement of the rotating shaft during rotation, so that the radial deflection and the axial movement of the rotating shaft of the workpiece shaft have obvious great influence on the processing quality of the groove of the bearing ring.
At present, belt shafts driven by motors are adopted for workpiece shafts of groove grinding machines for bearing machining at home and abroad, and the requirement on high precision of radial deflection of a main shaft during rotation is extremely difficult due to the limitation on the precision of the main shaft of the belt shaft.
The air bearing supported air floating shaft replaces a belt shaft driven by a motor to be used as a workpiece shaft, so that the surface luminosity of a processed bearing ring can be smoother, the processing precision of the bearing is improved, and the service life of the bearing is prolonged; if all the air bearing shafts are used as workpiece shafts, the machining difficulty of the air bearing is quite large, and the precision of the air bearing shafts cannot be guaranteed.
In order to solve the above problems, patent No. 2015201586161 provides a workpiece shaft for a channel grinding machine, in which the workpiece shaft is provided with a driving shaft connected to a belt pulley and an air floating shaft supported by an air bearing as a driven shaft, the driving shaft and the driven shaft are rigidly connected, the workpiece shaft adopts a structure in which a belt shaft driven by a motor is used as the driving shaft and the air floating shaft supported by the air bearing is used as the driven shaft, thereby improving the machining precision of the bearing and prolonging the service life of the bearing; the belt shaft and the air floating shaft are in a cross hard connection mode, so that the influence of the jumping of the belt shaft on the axial movement of the air rotating shaft is buffered; however, the belt shaft and the air floating shaft are separately installed during installation, the belt shaft is installed firstly, then the air floating shaft is installed, and then the belt shaft and the air floating shaft are in rigid connection, so that installation proficiency requirements of installation workers are met.
In addition, the workpiece shaft for the groove grinding machine generates heat in rotation, and needs to be cooled in real time in order to guarantee the service life of the workpiece shaft, but in the prior art, an external cooling mode is adopted, namely, a cooling liquid of a general air workpiece shaft is sprayed from the outside to the inside, and once impurities in the cooling liquid enter the air shaft in the air shaft, the impurities are discarded once the impurities cause problems in air shaft sealing.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a flexible work piece axle for channel grinding machine.
The utility model adopts the following technical scheme for accomplishing the above purpose:
a flexible workpiece shaft for a channel grinding machine is a flexible structure formed by three sections of shafts; the three sections of the flexible workpiece shaft are as follows: the device comprises a shaft I supported by a rolling bearing, a shaft II supported by an air bearing, and an elastic shaft connected between the shaft I and the shaft II; the shaft II is an air floating shaft; the elastic shaft is coaxially arranged with the shaft I and the shaft II; the shaft I, the shaft II and the elastic shaft are hollow shafts; the flexible workpiece shaft is provided with a cooling water pipe; the cooling water pipe penetrates through the shaft I, the shaft II and the elastic shaft and is in clearance fit with the shaft I, the shaft II and the elastic shaft.
The elastic shaft is formed by buckling and connecting two elastic bodies in a convex-concave manner; the two elastic bodies are respectively bonded on the shaft I and the shaft II.
The outer diameter of the elastic shaft is coaxial with that of the shaft I and that of the shaft II, so that dynamic balance of the flexible workpiece shaft is better guaranteed.
The elastic shaft is an elastic body which is bonded to the end of the shaft I or the shaft II; one end of the elastic body is bonded to the end of the shaft I or the shaft II, and the other end of the elastic body is buckled with the shaft II or the shaft I in a convex-concave mode.
When the flexible workpiece shaft for the channel grinding machine is used, the shaft I supported by the rolling bearing is connected with the belt pulley, is driven by the belt pulley to rotate, releases axial force generated during installation through the elastic shaft, and reduces the influence on the air bearing shaft generated during rotation of the belt pulley; the utility model discloses put into flexible work piece axle with flexible work piece axle clearance fit with the cooling water pipe, the rotatory condenser tube of flexible work axle does not change to outside cooling effect in reaching, thereby the coolant liquid can not get into the inside air supporting shaft that leads to of air supporting shaft necrosis yet like this.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is another schematic structural diagram of the present invention.
Fig. 3 is a schematic view of a third structure of the present invention.
In the figure: 1. axle I, 2, axle II, 3, elastic shaft, 4, condenser tube.
Detailed Description
The invention is described in connection with the accompanying drawings and the embodiments:
as shown in fig. 1, a flexible workpiece shaft for a groove grinding machine is a flexible structure formed by three sections of shafts; the three sections of the flexible workpiece shaft are as follows: the device comprises a shaft I1 supported by a rolling bearing, a shaft II 2 supported by an air bearing, and an elastic shaft 3 connected between the shaft I and the shaft II; the shaft II 2 is an air floating shaft; the elastic shaft 3 is coaxially arranged with the shaft I1 and the shaft II 2; the shaft I1, the shaft II 2 and the elastic shaft 3 are hollow shafts; the flexible workpiece shaft is provided with a cooling water pipe 4; the cooling water pipe 4 penetrates through the shaft I1, the shaft II 2 and the elastic shaft 3 and is in clearance fit with the shaft I1, the shaft II 2 and the elastic shaft 3; in this embodiment; the elastic shaft is formed by buckling and connecting two elastic bodies in a convex-concave manner; the two elastic bodies are respectively bonded on the shaft I and the shaft II.
As shown in fig. 2, the main structure of this embodiment is the same as that of embodiment 1, in this embodiment, one end of the elastic body is bonded to the end of the shaft i, and the other end is in convex-concave engagement with the shaft ii.
As shown in fig. 3, the main structure of this embodiment is the same as that of embodiment 1, and the outer diameters of the elastic shaft in this embodiment are the same as those of shaft i and shaft ii, so as to better ensure the dynamic balance of the flexible workpiece shaft.
The utility model discloses a belt pulley connection on the other end of axle I passes through polywedge bet and motor when using, is taken drive driving shaft rotation through many contracts by the motor to drive through the elastic axis
Rotating the air floating shaft; in this document, the structures of the air bearing shaft and the shaft I are mature structures existing in the prior art, and are not described more fully.
Claims (4)
1. The utility model provides a flexible work piece axle for channel grinding machine which characterized in that: the flexible workpiece shaft is a flexible structure formed by three sections of shafts; the three sections of the flexible workpiece shaft are as follows: the device comprises a shaft I supported by a rolling bearing, a shaft II supported by an air bearing, and an elastic shaft connected between the shaft I and the shaft II; the shaft II is an air floating shaft; the elastic shaft is coaxially arranged with the shaft I and the shaft II; the shaft I, the shaft II and the elastic shaft are hollow shafts; the flexible workpiece shaft is provided with a cooling water pipe; the cooling water pipe penetrates through the shaft I, the shaft II and the elastic shaft and is in clearance fit with the shaft I, the shaft II and the elastic shaft.
2. A flexible workpiece shaft for a channel grinding machine as defined in claim 1, wherein: the elastic shaft is formed by buckling and connecting two elastic bodies in a convex-concave manner; the two elastic bodies are respectively bonded on the shaft I and the shaft II.
3. A flexible workpiece shaft for a channel grinding machine as defined in claim 1, wherein: the outer diameter of the elastic shaft is coaxial with that of the shaft I and that of the shaft II, so that dynamic balance of the flexible workpiece shaft is better guaranteed.
4. A flexible workpiece shaft for a channel grinding machine as defined in claim 1, wherein: the elastic shaft is an elastic body which is bonded to the end of the shaft I or the shaft II; one end of the elastic body is bonded to the end of the shaft I or the shaft II, and the other end of the elastic body is buckled with the shaft II or the shaft I in a convex-concave mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022130083.XU CN213258682U (en) | 2020-09-25 | 2020-09-25 | Flexible workpiece shaft for groove grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022130083.XU CN213258682U (en) | 2020-09-25 | 2020-09-25 | Flexible workpiece shaft for groove grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213258682U true CN213258682U (en) | 2021-05-25 |
Family
ID=75945250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022130083.XU Active CN213258682U (en) | 2020-09-25 | 2020-09-25 | Flexible workpiece shaft for groove grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213258682U (en) |
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2020
- 2020-09-25 CN CN202022130083.XU patent/CN213258682U/en active Active
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