CN201300213Y - High-accuracy lathe spindle - Google Patents
High-accuracy lathe spindle Download PDFInfo
- Publication number
- CN201300213Y CN201300213Y CNU2008201803303U CN200820180330U CN201300213Y CN 201300213 Y CN201300213 Y CN 201300213Y CN U2008201803303 U CNU2008201803303 U CN U2008201803303U CN 200820180330 U CN200820180330 U CN 200820180330U CN 201300213 Y CN201300213 Y CN 201300213Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- roller bearing
- spindle
- accuracy
- lathe spindle
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a high-accuracy lathe spindle, which mainly solves the problem that the prior lathe spindle is inconvenient for detachment and is difficult for clearance adjustment. The lathe spindle is characterized in that an adjustable pad (4) is arranged between a spindle (5) and a pressure cover (3); and thrust roller bearings (16) are arranged outside the spindle (5) and inside a spindle sleeve (17). The high-accuracy lathe spindle has the characteristics of convenient installation and detachment, easy clearance adjustment of bearings and low machining accuracy.
Description
Technical field:
The utility model belongs to the machine tool chief axis field, relates in particular to a kind of smooth turning lathe main shaft.
Background technology:
Along with the development of society, the renewal day by day of science and technology, the user is also more and more higher to the processing request of large slewing parts, and this just requires lathe can satisfy high speed, heavy duty, high accuracy and constant speed cutting.Traditional machine tool chief axis mostly is major axis greatly, bearings at both ends supports, this structure dismounting inconvenience, the very difficult geometric accuracy that guarantees workbench, and the main shaft bearing gap is inconvenient to adjust in installation and use, and is also very difficult for the oil film rigidity adjustment of hydrostatic slideway.
The utility model content:
Adjust the deficiency of difficulty in order to overcome traditional lathe main shaft dismounting inconvenience, gap, the utility model provides a kind of smooth turning lathe main shaft, and this smooth turning lathe main shaft has easy accessibility, the bearing clearance adjustment is easy, machining accuracy is low characteristics.
The technical solution of the utility model is: a kind of smooth turning lathe main shaft, comprise gland, main shaft, double row cylindrical roller bearing, axle sleeve, and between main shaft and the gland adjusting pad is arranged, and main shaft is outside and axle sleeve inside is equipped with self-aligning thrust roller bearing.
Above-mentioned double row cylindrical roller bearing is 1.
The utlity model has following beneficial effect: owing to take such scheme, self-aligning thrust roller bearing is housed above main shaft, can carries bigger axial force and radial load, be convenient to regulate automatically the center, can shed a part of weight of workbench and workpiece simultaneously; Between gland and main shaft, be equipped with adjusting pad, make the axial precision of main shaft adjust more convenient; Double row cylindrical roller bearing is 1, changes unidirectional support into by original two-way support, and dismounting is more convenient, and the radial accuracy adjustment is easier.The whole main axle structure of the utility model adopts separate type to install, and axially the upper end that is adjusted at main shaft of precision and radial accuracy can be finished, and the process that lathe is installed and adjusted is very convenient, save time, laborsaving.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-end cap among the figure, 2-loam cake, 3-gland, 4-adjusting pad, the 5-main shaft, 6-spacer, 7-workbench, the 8-dottle pin, 9-double row cylindrical roller bearing, 10-support set, the 11-table base, 12-expansion set, 13-support, the 14-rotary encoder, 15-screw, 16-self-aligning thrust roller bearing, the 17-axle sleeve, 18-tapered roller thrust bearing, 19-tapered sleeve.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of smooth turning lathe main shaft comprises gland 3, main shaft 5, double row cylindrical roller bearing 9, axle sleeve 17, between main shaft 5 and the gland 3 adjusting pad 4 is arranged, when the axial precision of needs adjustment, as long as adjust adjusting pad 4; Main shaft 5 outsides are equipped with self-aligning thrust roller bearing 16 with axle sleeve 17 inside, replace original thrust ball bearing with self-aligning thrust roller bearing 16, make and to carry bigger axial force and radial load, be convenient to regulate automatically the center, can shed a part of weight of workbench 7 and workpiece simultaneously; Double row cylindrical roller bearing 9 is 1, main shaft 5 shortens, change unidirectional support into by original two-way support, simultaneously, end cap 1, loam cake 2, gland 3 correspondingly are 1, make dismounting more convenient, and the coefficient of friction of double row cylindrical roller bearing 9 is little, and radially bearing capacity is big, and the employing inner cone is 1:12, by adjusting bearing axial displacement to reach the purpose of adjusting outer race and roller clearance, to satisfy the requirement of high accuracy processing.
During installation, at first main shaft 5 is fixed on the table base 11, loads onto ring in splicing sleeve 10, the double row cylindrical roller bearing 9, spacer 6, tapered roller thrust bearing 18 composition one; After between tapered sleeve 19 and the axle sleeve 17 dottle pin 8 being installed, be screwed then, again itself and workbench 7 are fixed as one by screw, be buckled on the main shaft 5 after refilling double row cylindrical roller bearing 9 outer shrouds, and then load onto self-aligning thrust roller bearing 16, adjusting pad 4, gland 3, screw 15 successively, promptly finish preliminary installation, last only need to install rotary encoder 14, again fixed cover 2, and end cap 1 get final product.In installation and use, must adjust,, increase the oil film rigidity of hydrostatic slideway to guarantee the geometric accuracy of workbench 7 to main shaft 5 bearing clearancees.When radial accuracy is adjusted, take off end cap 1, loam cake 2, expansion set 12, support 13, rotary encoder 14, gland 3, adjusting pad 4, self-aligning thrust roller bearing 16, back out screw again, take off axle sleeve 17, tapered roller thrust bearing 18, spacer 6 is compressed the interior ring of double row cylindrical roller bearing 9, make it on the taper diameter of axle, produce axial displacement, can adjust the gap between outer race and the roller, thereby adjusted radial accuracy; When axially precision is adjusted, the dial gauge contact is propped up at workbench 7 end faces, reach the oil pressure of regulation when the workbench hydrostatic slideway after, tighten screw 15, adjust adjusting pad 4, make workbench 7 buoyance lifts guarantee to get final product at 0.15mm; Rotary encoder 14 is fixed on the main shaft by support 13, can realize the constant speed cutting of lathe under the control of electrical system program.
The whole main axle structure of the utility model adopts separate type to install, and axially the upper end that is adjusted at main shaft 5 of precision and radial accuracy can be finished, and the process that lathe is installed and adjusted is very convenient, save time, laborsaving, and has guaranteed machining accuracy.
Claims (2)
1, a kind of smooth turning lathe main shaft, comprise gland (3), main shaft (5), double row cylindrical roller bearing (9), axle sleeve (17), it is characterized in that: between main shaft (5) and the gland (3) adjusting pad (4) is arranged, and main shaft (5) is outside and axle sleeve (17) inside is equipped with self-aligning thrust roller bearing (16).
2, smooth turning lathe main shaft according to claim 1 is characterized in that: double row cylindrical roller bearing (9) is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201803303U CN201300213Y (en) | 2008-11-26 | 2008-11-26 | High-accuracy lathe spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201803303U CN201300213Y (en) | 2008-11-26 | 2008-11-26 | High-accuracy lathe spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201300213Y true CN201300213Y (en) | 2009-09-02 |
Family
ID=41083832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201803303U Expired - Fee Related CN201300213Y (en) | 2008-11-26 | 2008-11-26 | High-accuracy lathe spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201300213Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441844A (en) * | 2011-11-10 | 2012-05-09 | 大连永明数控机床有限公司 | Sleeve-type main shaft |
| CN106807959A (en) * | 2015-11-30 | 2017-06-09 | 湖南衡泰机械科技有限公司 | A kind of numerical control tool shaft fixed mechanism |
-
2008
- 2008-11-26 CN CNU2008201803303U patent/CN201300213Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441844A (en) * | 2011-11-10 | 2012-05-09 | 大连永明数控机床有限公司 | Sleeve-type main shaft |
| CN106807959A (en) * | 2015-11-30 | 2017-06-09 | 湖南衡泰机械科技有限公司 | A kind of numerical control tool shaft fixed mechanism |
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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: 20090902 Termination date: 20141126 |
|
| EXPY | Termination of patent right or utility model |