CN106334999A - Mounting Structure of Workpiece Spindle of aBearing Grinder - Google Patents
Mounting Structure of Workpiece Spindle of aBearing Grinder Download PDFInfo
- Publication number
- CN106334999A CN106334999A CN201610966696.2A CN201610966696A CN106334999A CN 106334999 A CN106334999 A CN 106334999A CN 201610966696 A CN201610966696 A CN 201610966696A CN 106334999 A CN106334999 A CN 106334999A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- work spindle
- face
- expansion
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention provides a mounting structure of workpiece spindle of a bearing grinder, which can solve the technical problems of high processing cost cause by high accuracy of the fitting parts of the workpiece spindle. The invention includes a workpiece spindle, a sleeve and a bearing set, wherein the two ends of the workpiece main shaft are respectively supported in the sleeve through a bearing group. Its features: the two ends of the workpiece spindle are respectively provided with a hydraulic expansion sleeve and a step; the end face of the bearing group is butted against the end face of the step; the end surface of the other side is pressed against the end surface of the expansion sleeve; the larger one end of the inner diameter of the sleeve is provided with an expansion joint sleeve; and the expansion joint sleeve comprises an expansion ring and an expansion sleeve inter-fitting with the conical surface; the expansion sleeve is arranged outside the sleeve, and the expansion ring is fastened by the tightening mechanism.
Description
Technical field
The present invention relates to grinding machine field is and in particular to the mounting structure of the work spindle of bearing grinder.
Background technology
The mounting structure of the work spindle of existing bearing grinder includes work spindle, sleeve and bearing group, work spindle
Two ends are supported in sleeve by bearing group, and bearing group is typically held out against on the step of work spindle by spacer ring or nut.If
Hold out against bearing group using spacer ring, work spindle separately need to be equipped with step with against spacer ring, due to spacer ring, step and bearing
The depth of parallelism requirement of group three's counterface is very high, leads to high processing costs；If holding out against bearing group, nut and workpiece using nut
Spindle thread connects, the flatness of nut end face and with the perpendicularity of the centre of gyration of main shaft require very high, again result in plus
Work high cost.Additionally, sleeve is equally very high with the required precision that bearing group is assembled, because sleeve is typically by Boring machine processing, single
After Continuous maching, the internal diameter size of axial one end of sleeve is less than the internal diameter size of the other end, needs reprocessabilty, and processing cost is same
Sample is very high.
Content of the invention
For the problems referred to above, the invention provides the mounting structure of the work spindle of bearing grinder, it can solve existing skill
In art, the mounting structure of work spindle each part matching part machining accuracy is high, leads to the technical problem of high processing costs.
Its technical scheme is such, and it includes work spindle, sleeve and bearing group, and described work spindle two ends lead to respectively
Cross bearing group be supported in sleeve it is characterised in that: interference is connected with hydraulic expanding sleeve locking and opens respectively at described work spindle two ends
Be provided with step, described bearing group one side end face is resisted against on the end face of described step, another side end face by described expansion sleeve end
Face holds out against；The larger one end of described sleeve diameter size is provided with bulging joining sleeve, and described bulging joining sleeve includes mutual by the conical surface
The distensible ring of cooperation and expansion set, described expansion set is sheathed on outside described sleeve, and described distensible ring is held out against by jacking mechanism.
Further, described jacking mechanism includes the end cap being sheathed on described work spindle, and described end cap is provided with top dress
The collar flange of described distensible ring is simultaneously connected with the lathe bed of sleeve or grinding machine by bolt.
Further, the medial surface of described hydraulic expanding sleeve locking is located at internal channel both sides and is respectively the first seal face and the second pressure
Tight face, near corresponding bearing group and its internal diameter is more than the internal diameter of the second seal face to described first seal face；Described workpiece master
The radial dimension of axle corresponding hydraulic expanding sleeve locking installation position is more than the footpath of the non-hydraulic expansion sleeve installation position away from bearing group
Internal diameter to size and the first seal face.
Further, the width of described first seal face is more than the width of described second seal face.
Further, the corresponding hydraulic expanding sleeve locking installation position of described work spindle and the non-hydraulic swelling away from bearing group
Set is provided with outer channel corresponding with the internal channel of hydraulic expanding sleeve locking between installation position.
The mounting structure of the work spindle of bearing grinder of the present invention, it holds out against bearing group using hydraulic expanding sleeve locking, due to liquid
Pressure expansion sleeve and work spindle are interference fit, and one side end face holds out against bearing group, goes with respect to bolt and spacer ring, hydraulic expansion
Set only needs to consider to hold out against the depth of parallelism of a side end face of bearing group, and its difficulty of processing coefficient reduces, and can reduce processing cost；Its
Using bulging joining sleeve, expansion set is sheathed on outside sleeve, and distensible ring is held out against by jacking mechanism so that expansion set clamp sleeve internal diameter chi
Very little larger one end, thus the larger-size one end of sleeve diameter is shunk and is fastenedly connected with bearing group outer ring, thus avoiding
Sleeve reprocessabilty, reduce further processing cost.
Brief description
Fig. 1 is the cross-sectional view in the main view direction of the present invention.
Fig. 2 is work spindle right-hand member and bearing group, the mounting structure schematic diagram of hydraulic expanding sleeve locking of the present invention.
Fig. 3 is the structural representation of the hydraulic expanding sleeve locking of the present invention.
Specific embodiment
As shown in Fig. 1 ~ Fig. 3, it includes work spindle 1, sleeve 6 and bearing group 21,22, and work spindle 1 two ends are correspondingly
It is supported in sleeve 6 by bearing group 21,22, interference is connected with hydraulic expanding sleeve locking and offers platform respectively at work spindle 1 two ends
Rank, wherein, bearing group 21 1 side end face is resisted against on the end face of step 13, another side end face by expansion sleeve 31 end face tightening,
Bearing group 22 1 side end face is resisted against on the end face of step 14, another side end face by expansion sleeve 32 end face tightening；Sleeve 6 internal diameter
Larger one end of size 61 is provided with bulging joining sleeve, and bulging joining sleeve includes the distensible ring 42 cooperating by the conical surface and expansion set
41, expansion set 41 is sheathed on outside sleeve 6, and distensible ring 42 is held out against by jacking mechanism；Jacking mechanism includes being sheathed on work spindle 1
End cap 51, end cap is provided with the top dress collar flange 511 of distensible ring and is connected with the lathe bed 7 of grinding machine by bolt 52.
Hydraulic expanding sleeve locking 31 is similar with expansion sleeve 32 structure, and, hydraulic expanding sleeve locking 31 includes setting taking hydraulic expanding sleeve locking 31 as a example
It is placed in the internal channel 311 on medial surface and the liquid injection hole 312 connecting internal channel, the medial surface of hydraulic expanding sleeve locking is located at internal channel
Both sides be respectively the first seal face 313 and the second seal face 314, the first seal face 313 near corresponding bearing group 21 and its
Internal diameter is more than the internal diameter of the second seal face；The radial dimension of the corresponding hydraulic expanding sleeve locking installation position 11 of work spindle 1 is more than remote
The radial dimension of non-hydraulic expansion sleeve installation position 12 and the internal diameter of the first seal face from bearing group.
The width of the first seal face 313 is more than the width of the second seal face 314.
The corresponding hydraulic expanding sleeve locking installation position 11 of work spindle 1 and the non-hydraulic expansion sleeve installation position away from bearing group
It is provided with outer channel 15 corresponding with the internal channel of hydraulic expanding sleeve locking between 12.
Claims (5)
1. the mounting structure of the work spindle of bearing grinder, it includes work spindle, sleeve and bearing group, described work spindle two
End pass through respectively bearing group be supported in sleeve interior it is characterised in that: interference is connected with Hydraulic Expansion respectively at described work spindle two ends
Tight set simultaneously offers step, and described bearing group one side end face is resisted against on the end face of described step, another side end face is by described swollen
The end face tightening of tight set；The larger one end of described sleeve diameter size is provided with bulging joining sleeve, and described bulging joining sleeve includes passing through
Distensible ring and expansion set that the conical surface cooperates, described expansion set is sheathed on outside described sleeve, and described distensible ring passes through jacking mechanism top
Tightly.
2. the work spindle of bearing grinder according to claim 1 mounting structure it is characterised in that: described jacking mechanism
Including the end cap being sheathed on described work spindle, described end cap is provided with top and fills the collar flange of described distensible ring and pass through bolt
It is connected with the lathe bed of sleeve or grinding machine.
3. the work spindle of bearing grinder according to claim 1 mounting structure it is characterised in that: described hydraulic expansion
The medial surface of set is located at internal channel both sides and is respectively the first seal face and the second seal face, and described first seal face is near corresponding
Bearing group and its internal diameter are more than the internal diameter of the second seal face；The footpath of the corresponding hydraulic expanding sleeve locking installation position of described work spindle
It is more than the radial dimension of non-hydraulic expansion sleeve installation position and the internal diameter of the first seal face away from bearing group to size.
4. the work spindle of bearing grinder according to claim 3 mounting structure it is characterised in that: described first compression
The width in face is more than the width of described second seal face.
5. the work spindle of bearing grinder according to claim 4 mounting structure it is characterised in that: described work spindle
Corresponding hydraulic expanding sleeve locking installation position and being provided with and hydraulic expansion away between the non-hydraulic expansion sleeve installation position of bearing group
The corresponding outer channel of internal channel of set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966696.2A CN106334999A (en) | 2016-11-05 | 2016-11-05 | Mounting Structure of Workpiece Spindle of aBearing Grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966696.2A CN106334999A (en) | 2016-11-05 | 2016-11-05 | Mounting Structure of Workpiece Spindle of aBearing Grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334999A true CN106334999A (en) | 2017-01-18 |
Family
ID=57841016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966696.2A Pending CN106334999A (en) | 2016-11-05 | 2016-11-05 | Mounting Structure of Workpiece Spindle of aBearing Grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106334999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638219A (en) * | 2018-07-04 | 2018-10-12 | 南京帝鼎数控科技有限公司 | Door-plate mark Milling Process integrated apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116506A (en) * | 1976-04-30 | 1978-09-26 | Seiko Seiki Kabushiki Kaisha | Preloaded bearing |
| CN201275626Y (en) * | 2008-09-27 | 2009-07-22 | 宝鸡忠诚机床股份有限公司 | Vertical lathe main spindle box mounting structure |
| CN201922050U (en) * | 2010-11-30 | 2011-08-10 | 无锡机床股份有限公司 | High-precision sleeve-spindle structure for machine tools |
| CN203906587U (en) * | 2014-04-23 | 2014-10-29 | 兰溪市海德机床制造有限公司 | Spindle assembly and taper lock structure |
| CN204053759U (en) * | 2014-07-02 | 2014-12-31 | 重庆机床(集团)有限责任公司 | A kind of high rigidity grinding spindle system |
| CN204353490U (en) * | 2014-12-29 | 2015-05-27 | 朱桂林 | A kind of high accuracy plain spindle structure |
| CN105817995A (en) * | 2016-06-12 | 2016-08-03 | 成都茵普精密机械有限公司 | Mechanical main shaft mechanism of cylindrical grinder based on shaft parts |
| CN206316917U (en) * | 2016-11-05 | 2017-07-11 | 无锡机床股份有限公司 | A kind of mounting structure of the work spindle of bearing grinder |
-
2016
- 2016-11-05 CN CN201610966696.2A patent/CN106334999A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116506A (en) * | 1976-04-30 | 1978-09-26 | Seiko Seiki Kabushiki Kaisha | Preloaded bearing |
| CN201275626Y (en) * | 2008-09-27 | 2009-07-22 | 宝鸡忠诚机床股份有限公司 | Vertical lathe main spindle box mounting structure |
| CN201922050U (en) * | 2010-11-30 | 2011-08-10 | 无锡机床股份有限公司 | High-precision sleeve-spindle structure for machine tools |
| CN203906587U (en) * | 2014-04-23 | 2014-10-29 | 兰溪市海德机床制造有限公司 | Spindle assembly and taper lock structure |
| CN204053759U (en) * | 2014-07-02 | 2014-12-31 | 重庆机床(集团)有限责任公司 | A kind of high rigidity grinding spindle system |
| CN204353490U (en) * | 2014-12-29 | 2015-05-27 | 朱桂林 | A kind of high accuracy plain spindle structure |
| CN105817995A (en) * | 2016-06-12 | 2016-08-03 | 成都茵普精密机械有限公司 | Mechanical main shaft mechanism of cylindrical grinder based on shaft parts |
| CN206316917U (en) * | 2016-11-05 | 2017-07-11 | 无锡机床股份有限公司 | A kind of mounting structure of the work spindle of bearing grinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638219A (en) * | 2018-07-04 | 2018-10-12 | 南京帝鼎数控科技有限公司 | Door-plate mark Milling Process integrated apparatus |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170118 |
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| RJ01 | Rejection of invention patent application after publication |