CN204504991U - Groove grinder workpiece spindle - Google Patents
Groove grinder workpiece spindle Download PDFInfo
- Publication number
- CN204504991U CN204504991U CN201520158616.1U CN201520158616U CN204504991U CN 204504991 U CN204504991 U CN 204504991U CN 201520158616 U CN201520158616 U CN 201520158616U CN 204504991 U CN204504991 U CN 204504991U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- air
- shaft
- copper sheathing
- bearing
- 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.)
- Active
Links
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model belongs to bearing mnanufacture technical field, proposes a kind of groove grinder workpiece spindle.A kind of groove grinder workpiece spindle proposed includes driving shaft and driven shaft; Driven shaft is by the air-bearing shafts of air bearings support, includes rotating shaft (1) and air bearing body; Air bearing body is nested with in rotating shaft (1), and the center line of rotating shaft (1) overlaps with the center line of air bearing body; Between air bearing body and rotating shaft, there is gap; One end of rotating shaft (1) is connected with electric magnetic no-core clamp; The other end of rotating shaft (1) and one end of driving shaft (7) are rigidly connected; Rotating shaft (1) is equipped with thrust bearing (2); Driving shaft (7) is belt shaft, and the other end of driving shaft (7) is connected with the belt pulley on motor by polywedge bet.The utility model makes the surface luminous intensity of processed bearing ring more smooth, improves the machining accuracy of bearing and extends the service life of bearing.
Description
Technical field
The utility model belongs to bearing mnanufacture technical field, is specifically related to a kind of groove grinder workpiece spindle.
Background technology
The precision and stability of groove grinder various piece all has the impact varied in size on the machining accuracy of the raceway groove of bearing ring.When other parts precision of groove grinder and stability indicator certain, the quality of workpiece spindle has greatly directly impact to the quality that bearing ring channel is processed; Improvement with regard to workpiece spindle is discussed with the precision quality improving groove grinder machining bearing raceway groove.
When bearing channel grinding, the workpiece spindle of groove grinder, show that the axis of its rotating shaft moves forward and backward greatly, rotating shaft axial float when rotated due to workpiece spindle directly has influence on the channel location of bearing ring, the radial beat of the rotating shaft of workpiece spindle directly has influence on bearing ring channel adds man-hour precision at mill by affect rotating shaft play when rotated, so the radial beat of workpiece spindle rotating shaft and the crudy of axial float on the raceway groove of bearing ring have obvious larger impact.
At present, the workpiece spindle of bearing machining groove grinder both domestic and external all adopts the belt shaft by driven by motor, because the main shaft precision of belt shaft has limitation, accomplish to make the high-precision requirement of main shaft radial beat when rotated extremely difficult.
Replace the belt shaft of driven by motor as workpiece spindle using the air-bearing shafts of air bearings support, the surface luminous intensity of processed bearing ring can be made more smooth, improve the machining accuracy of bearing and extend service life of bearing. but because workpiece spindle needs enough stability, so workpiece spindle is all very long, generally at more than 300mm; If will all with air-bearing shafts as workpiece spindle, so, the difficulty of processing of air bearing is quite large, and the precision of air-bearing shafts also cannot ensure.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model proposes a kind of groove grinder workpiece spindle.
The utility model adopts following technical scheme for completing above-mentioned purpose:
A kind of groove grinder workpiece spindle, described workpiece spindle includes driving shaft and driven shaft; Described driven shaft is by the air-bearing shafts of air bearings support; Described air-bearing shafts includes rotating shaft and air bearing body; Described air bearing body is nested with in described rotating shaft, and the center line of described rotating shaft overlaps with the center line of air bearing body; Between described air bearing body and rotating shaft, there is gap, form the suspension support structure of rotating shaft in radial direction; One end of described rotating shaft is connected with electric magnetic no-core clamp, and the other end of described rotating shaft and one end of driving shaft are rigidly connected; Described rotating shaft is equipped with the thrust bearing carrying out axial support in order to countershaft; Described driving shaft is belt shaft, and the other end of driving shaft is connected with the belt pulley on motor by polywedge bet, drives driving shaft to rotate by motor by polywedge bet, and drives air-bearing shafts to rotate by driving shaft.
Described air bearing body includes copper sheathing and shell, and described shell is the cylindrical shell of both ends open, is nested with outside described copper sheathing, and with copper sheathing interference fit; Between described shell and copper sheathing, there is air flow channel, described shell has the compressed air air admission hole be communicated with air flow channel; The opening of described shell one end is provided with end cap; Described copper sheathing is nested with in described rotating shaft, and has gap between described copper sheathing and rotating shaft; Described copper sheathing has some row radial holes of axially-aligned, often arranging described radial hole is multiple along copper sheathing circumference uniform distribution; Described radial hole on copper sheathing is communicated with the air flow channel had between shell and copper sheathing, and is communicated with the gap had between copper sheathing and rotating shaft.
A kind of groove grinder workpiece spindle that the utility model proposes, adopting by the belt shaft of driven by motor is driving shaft, with the structure that the air-bearing shafts of air bearings support is driven shaft, air-bearing shafts stands, from the active force of outer load, when it rotates stable be distributed in a little go up, make the surface luminous intensity of processed bearing ring more smooth, air-bearing shafts axis when rotated moves forward and backward less and radial beat is less, far away higher than belt shaft phase closing precision when rotated thus the more high-precision processing realized bearing ring channel, thus improve the machining accuracy of bearing and extend the service life of bearing, meanwhile, the operation principle of air bearing makes it when working long hours without wearing and tearing, ensure that the precision of air-bearing shafts further for a long time, adopt the hard connecting mode of right-angled intersection between belt shaft and air-bearing shafts, the axial float affecting air rotating shaft because of beating of belt shaft can be cushioned.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, rotating shaft, 2, thrust bearing, 3, copper sheathing, 4, shell, 5, end cap, 6, housing, 7, driving shaft, 8, compressed air air admission hole.
Detailed description of the invention
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of groove grinder workpiece spindle, described workpiece spindle includes driving shaft and driven shaft; Described driven shaft is by the air-bearing shafts of air bearings support; Described air-bearing shafts includes rotating shaft 1 and air bearing body; Described air bearing body is nested with in described rotating shaft 1, and the center line of described rotating shaft 1 overlaps with the center line of air bearing body; Between described air bearing body and rotating shaft, there is gap, form the suspension support structure of rotating shaft in radial direction, that is: described air bearing body has copper sheathing 3 and shell 4, and described shell 4 is the cylindrical shell of both ends open, be nested with outside copper sheathing 3, and with copper sheathing 3 interference fit; The internal face of described shell 4 has groove, and forms air flow channel between the groove that has of shell 4 internal face and the outside wall surface of copper sheathing 3; Described shell 4 has the compressed air air admission hole 8 be communicated with air flow channel; The opening of described shell 4 one end is provided with end cap 5; Described copper sheathing 3 is nested with in described rotating shaft 1, and has gap between described copper sheathing 3 and rotating shaft 1; Described copper sheathing 3 has some row radial holes of axially-aligned, often arranging described radial hole is multiple along copper sheathing circumference uniform distribution; Described radial hole on copper sheathing 3 is communicated with the air flow channel had between shell 4 and copper sheathing 3, and is communicated with the gap had between copper sheathing 3 and rotating shaft 1; Air flow channel between described copper sheathing 3 and shell 4 is sealed by O RunddichtringO; One end of described rotating shaft 1 is connected with electric magnetic no-core clamp through end cap 5; The other end of described rotating shaft 1 and one end of driving shaft 7 are rigidly connected, in this embodiment, and binding between rotating shaft 1 and driving shaft 7; Described rotating shaft 1 is equipped with the thrust bearing 2 carrying out axial support in order to countershaft; Described driving shaft 7 is belt shaft, and the other end of driving shaft 7 is connected with the belt pulley on motor by polywedge bet, drives driving shaft to rotate by motor by polywedge bet, and drives air-bearing shafts to rotate by driving shaft.
Claims (2)
1. a groove grinder workpiece spindle, is characterized in that: described workpiece spindle includes driving shaft and driven shaft; Described driven shaft is by the air-bearing shafts of air bearings support; Described air-bearing shafts includes rotating shaft (1) and air bearing body; Described air bearing body is nested with in described rotating shaft (1), and the center line of described rotating shaft (1) overlaps with the center line of air bearing body; Between described air bearing body and rotating shaft, there is gap, form the suspension support structure of rotating shaft in radial direction; One end of described rotating shaft (1) is connected with electric magnetic no-core clamp; The other end of described rotating shaft (1) and one end of driving shaft (7) are rigidly connected; Described rotating shaft (1) is equipped with the thrust bearing (2) carrying out axial support in order to countershaft; Described driving shaft (7) is belt shaft, and the other end of driving shaft (7) is connected with the belt pulley on motor by polywedge bet, drives driving shaft to rotate by motor by polywedge bet, and drives air-bearing shafts to rotate by driving shaft.
2. groove grinder workpiece spindle according to claim 1, it is characterized in that: described air bearing body includes copper sheathing (3) and shell (4), described shell is the cylindrical shell of both ends open, be nested with described copper sheathing (3) outside, and with copper sheathing (3) interference fit; Between described shell (3) and copper sheathing (4), there is air flow channel; Described shell (4) has the compressed air air admission hole (8) be communicated with air flow channel; The opening of described shell (4) one end is provided with end cap (5); Described copper sheathing (3) is nested with in described rotating shaft (1), and has gap between described copper sheathing (3) and rotating shaft (1); Described copper sheathing (3) has some row radial holes of axially-aligned, often arrange multiple for along copper sheathing (3) circumference uniform distribution of described radial hole; Described radial hole on copper sheathing (3) is communicated with the air flow channel had between shell (4) and copper sheathing (3), and is communicated with the gap had between copper sheathing (3) and rotating shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158616.1U CN204504991U (en) | 2015-03-20 | 2015-03-20 | Groove grinder workpiece spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158616.1U CN204504991U (en) | 2015-03-20 | 2015-03-20 | Groove grinder workpiece spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204504991U true CN204504991U (en) | 2015-07-29 |
Family
ID=53702995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520158616.1U Active CN204504991U (en) | 2015-03-20 | 2015-03-20 | Groove grinder workpiece spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204504991U (en) |
-
2015
- 2015-03-20 CN CN201520158616.1U patent/CN204504991U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202910306U (en) | High-speed automatic tool changing electric main shaft | |
| CN202555839U (en) | Novel gas magnetic bearing electric spindle | |
| CN103878397A (en) | High-speed high-precision mechanical main shaft | |
| CN202411443U (en) | High-speed running centre bearing structure | |
| CN101123376A (en) | A high-speed woodworker power principle axis | |
| CN204504991U (en) | Groove grinder workpiece spindle | |
| CN200993163Y (en) | Lower air baring for air-floating electric spindle | |
| CN102371364B (en) | Tooling spindle of gear grinding machine | |
| CN103047280A (en) | Novel rolling bearing structure | |
| CN201171170Y (en) | Axial bidirectional locating structure for motor bearings | |
| CN203871963U (en) | High-speed electric main shaft applying permanent magnet to replace bearing | |
| CN203067539U (en) | Novel rolling bearing structure | |
| CN202846296U (en) | Technological equipment of novel grinding ball machine | |
| CN102554286B (en) | High-speed live center | |
| CN101758456A (en) | Vertical dynamic/static piezoelectric main shaft | |
| CN211142279U (en) | Mixed magnetic suspension bearing for driving spindle of rotor ultra-high-speed motor | |
| CN209150903U (en) | A kind of kinetic pressure air-float bearing of inner hysteresis machine | |
| CN202418233U (en) | Thrust bearing of turbocharger | |
| CN202877561U (en) | Novel apex | |
| CN201618856U (en) | Ultra-high-speed precise pneumatic micro-spindle | |
| CN110729846A (en) | Novel superspeed motor structure for supporting and driving spinning cup by mixed magnetic bearing | |
| CN203438020U (en) | High-precision rotary table of grinding machine | |
| CN110401293A (en) | A kind of two-for-one twister magnetic levitation motor bearings | |
| CN205552260U (en) | Main shaft supporting system of grinding superfinish equipment | |
| CN203542348U (en) | Axial movement-type dynamic and hydrostatic electric main shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |