CN203600055U - Workpiece spindle structure for numerical control internal grinding machine - Google Patents
Workpiece spindle structure for numerical control internal grinding machine Download PDFInfo
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- CN203600055U CN203600055U CN201320772954.5U CN201320772954U CN203600055U CN 203600055 U CN203600055 U CN 203600055U CN 201320772954 U CN201320772954 U CN 201320772954U CN 203600055 U CN203600055 U CN 203600055U
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- sleeve
- angular contact
- contact ball
- ball bearing
- boss
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Abstract
The utility model belongs to the field of grinding machine devices, and relates to a workpiece spindle structure for a numerical control internal grinding machine. The workpiece spindle structure for the numerical control internal grinding machine comprises a box body. A sleeve is arranged inside the box body. The two ends of a spindle are supported into the sleeve in a rotating mode through a paired angular contact ball bearing and combined angular contact ball bearing respectively. A belt pulley is connected to the axial diameter of the rear end of the spindle through a key. A first end cover is fixed to the rear end of the spindle through a stopper screw. The edge of the outer side of the first end cover is compressed to the outer end face of the belt pulley. The inner side of the belt pulley is provided with a small sleeve extending in the axial direction. The small sleeve is sleeved with a rear cover. The rear cover is connected to the sleeve in a fastened mode through a stopper screw. According to the workpiece spindle structure for the numerical control internal grinding machine, the coaxiality of the workpiece spindle can be effectively improved, and therefore the precision of grinding machining inside parts is ensured.
Description
Technical field
The utility model belongs to grinding machine equipment field, relates to a kind of work spindle structure of numeral-controlled internal grinder.
Background technology
Automobile gear after heat treatment produces distortion, causes endoporus to shrink and axially bored line deflection, causes profile error and gear ring circular runout to strengthen, and for this reason, bore must adopt grinding process, corrects profile error and tooth runout.Circularity, the cylindricity quality of bore are decided by the precision of work spindle.
As shown in Figure 1, at present, the form that work spindle is conventional is the rear and front end that Biserial cylindrical roller bearing 19 and angular contact ball bearing 18 is directly contained in to main spindle box body 20, and the quality of the rotating accuracy of the work spindle 21 in main spindle box body 20 is decided by axiality, the cylindricity in two holes, main spindle box body 20 front and back.Due to two holes, front and back of casing be Boring machine processing out, front and back two hole axialities, cylindricity are not so good, and bearing is directly packed in casing, directly affect the precision of work spindle, the element precision processing is also bad.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of work spindle structure of simple in structure, ingenious, rational numeral-controlled internal grinder is provided, this structure can effectively improve the axiality of work spindle, thereby guarantees the precision of inner bore of part grinding.
The technical scheme providing according to the utility model: a kind of work spindle structure of numeral-controlled internal grinder, be characterised in that: comprise casing, in described casing, be provided with sleeve, main shaft two ends respectively by paired angular contact ball bearing and in groups angular contact ball bearing rotating support in sleeve, the described rear-end of spindle portion diameter of axle is connected with belt pulley by key, the first end cap is fixed on rear-end of spindle portion by holding screw, and the first end cap outer ledge is pressed on belt pulley outer face, described belt pulley inner side has the small sleeve extending vertically, on described small sleeve, be set with bonnet, described bonnet is fastenedly connected on sleeve by holding screw, on the described front-end of spindle portion diameter of axle, be formed with the first boss, the second boss, wherein on the first boss, be arranged with drive end bearing bracket and labyrinth ring, described drive end bearing bracket is fastenedly connected in the front end face of sleeve and casing by holding screw, on described the second boss, be arranged with the second end cap, and the second end cap is coated on drive end bearing bracket in the cavity that itself and casing front end face form, and described the second end cap is fixedly connected on casing by holding screw.
As further improvement of the utility model, described paired angular contact ball bearing is that two bearing pairings form, and the both sides inner ring of angular contact ball bearing is by small sleeve and the lining ring location of belt pulley in pairs; Described angular contact ball bearing is in groups that three bearing assembly form, and angular contact ball bearing both sides inner ring is by the shaft shoulder and the spacer location of front-end of spindle portion the first boss in groups, and outer ring, angular contact ball bearing both sides is by the interior step location of drive end bearing bracket and sleeve in groups.
As further improvement of the utility model, on described the second boss corresponding to being also fixed with sealing ring in the cavity of the second end cap.
The utility model compared with prior art, advantage is: the utility model in prior art before and after main spindle box body two holes by Boring machine processing, the problem of two hole axialities before and after can not guaranteeing, technological improvement is proposed, change the connected mode of main shaft and casing by increasing sleeve, guarantee that the axiality of main shaft reaches technical requirement; And then guarantee the precision of inner bore of part grinding, expand the range of application of numeral-controlled internal grinder.The utility model compact conformation, easy and simple to handle, can effectively improve the machining accuracy of part.
Accompanying drawing explanation
Fig. 1 is the work spindle structural representation of numeral-controlled internal grinder in prior art.
Fig. 2 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, comprise casing 1, belt pulley 2, the first end cap 3, main shaft 4, key 5, angular contact ball bearing 6, bonnet 7, sleeve 8, lining ring 9, spacer 10, angular contact ball bearing 11, labyrinth ring 12, drive end bearing bracket 13, sealing ring 14, the second end cap 15, the first boss 16, the second boss 17, angular contact ball bearing 18, cylinder roller bearing 19, main spindle box body 20, work spindle 21 etc. in groups in pairs.
As shown in Figure 2, the work spindle structure of a kind of numeral-controlled internal grinder of the utility model, comprise casing 1, in described casing 1, be provided with sleeve 8, main shaft 4 two ends respectively by paired angular contact ball bearing 6 and in groups angular contact ball bearing 11 rotating supports in sleeve 8, the described main shaft 4 rearward end diameters of axle are connected with belt pulley 2 by key 5, the first end cap 3 is fixed on main shaft 4 rearward end by holding screw, and the first end cap 3 outer ledges are pressed on belt pulley 2 outer faces, described belt pulley 2 inner sides have the small sleeve extending vertically, on described small sleeve, be set with bonnet 7, described bonnet 7 is fastenedly connected on sleeve 8 by holding screw, on the described main shaft 4 leading section diameters of axle, be formed with the first boss 16, the second boss 17, wherein on the first boss 16, be arranged with drive end bearing bracket 13 and labyrinth ring 12, described drive end bearing bracket 13 is fastenedly connected in the front end face of sleeve 8 and casing 1 by holding screw, on described the second boss 17, be arranged with the second end cap 15, and the second end cap 15 is coated on drive end bearing bracket 13 in the cavity that itself and casing 1 front end face forms, and described the second end cap 15 is fixedly connected on casing 1 by holding screw.
Described paired angular contact ball bearing 6 is that two bearing pairings form, and the both sides inner ring of angular contact ball bearing 6 is located by small sleeve and the lining ring 9 of belt pulley 2 in pairs; Described angular contact ball bearing in groups 11 is that three bearing assembly form, and angular contact ball bearing 11 both sides inner rings are located by the shaft shoulder and the spacer 10 of main shaft 4 leading section the first boss 16 in groups, angular contact ball bearing 11 outer rings, both sides are by the interior step location of drive end bearing bracket 13 and sleeve 8 in groups.
On described the second boss 17 corresponding to being also fixed with sealing ring 14 in the cavity of the second end cap 15.
Front and back two endoporus of the utility model middle sleeve 8, cylindrical are all to adopt grinding technique, and axiality, the cylindricity in two holes, front and back are good.Bearing is first packed into after sleeve endoporus, reinstall in casing 1, improved the rotating accuracy of the work spindle of numeral-controlled internal grinder.
Claims (3)
1. the work spindle structure of a numeral-controlled internal grinder, it is characterized in that: comprise casing (1), in described casing (1), be provided with sleeve (8), main shaft (4) two ends respectively by paired angular contact ball bearing (6) and in groups angular contact ball bearing (11) rotating support in sleeve (8), described main shaft (4) the rearward end diameter of axle is connected with belt pulley (2) by key (5), the first end cap (3) is fixed on main shaft (4) rearward end by holding screw, and the first end cap (3) outer ledge is pressed on belt pulley (2) outer face, described belt pulley (2) inner side has the small sleeve extending vertically, on described small sleeve, be set with bonnet (7), described bonnet (7) is fastenedly connected on sleeve (8) by holding screw, on described main shaft (4) the leading section diameter of axle, be formed with the first boss (16), the second boss (17), wherein on the first boss (16), be arranged with drive end bearing bracket (13) and labyrinth ring (12), described drive end bearing bracket (13) is fastenedly connected in the front end face of sleeve (8) and casing (1) by holding screw, on described the second boss (17), be arranged with the second end cap (15), and the second end cap (15) is coated on drive end bearing bracket (13) in the cavity that itself and casing (1) front end face form, described the second end cap (15) is fixedly connected on casing (1) by holding screw.
2. the work spindle structure of numeral-controlled internal grinder as claimed in claim 1, it is characterized in that: described paired angular contact ball bearing (6) is that two bearing pairings form, the both sides inner ring of angular contact ball bearing (6) is by small sleeve and lining ring (9) location of belt pulley (2) in pairs; Described angular contact ball bearing in groups (11) is that three bearing assembly form, and angular contact ball bearing (11) both sides inner ring is by the shaft shoulder and spacer (10) location of main shaft (4) leading section the first boss (16) in groups, and angular contact ball bearing (11) outer ring, both sides is by the interior step location of drive end bearing bracket (13) and sleeve (8) in groups.
3. the work spindle structure of numeral-controlled internal grinder as claimed in claim 1, is characterized in that: described the second boss (17) is upper corresponding to being also fixed with sealing ring (14) in the cavity of the second end cap (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772954.5U CN203600055U (en) | 2013-11-26 | 2013-11-26 | Workpiece spindle structure for numerical control internal grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772954.5U CN203600055U (en) | 2013-11-26 | 2013-11-26 | Workpiece spindle structure for numerical control internal grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203600055U true CN203600055U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320772954.5U Expired - Fee Related CN203600055U (en) | 2013-11-26 | 2013-11-26 | Workpiece spindle structure for numerical control internal grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203600055U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150101A (en) * | 2015-10-20 | 2015-12-16 | 广东豪特曼智能机器有限公司 | Working head of internal grinder |
| CN106438687A (en) * | 2016-12-09 | 2017-02-22 | 瓦房店轴承集团有限责任公司 | Pairing angular contact ball bearing for solar energy crystal silicon slicing machine |
| CN107775823A (en) * | 2017-11-17 | 2018-03-09 | 福建省南安市万福机械有限公司 | A kind of modified main spindle box and the slab cutting machine with modified main spindle box |
| CN108145597A (en) * | 2018-02-06 | 2018-06-12 | 湘潭大学 | A kind of pneumatic grinder head device of flexibility |
| CN108942660A (en) * | 2018-08-22 | 2018-12-07 | 襄阳福坦铁路轴承有限公司 | Detachable spindle assemblies and polishing machine |
| CN109366202A (en) * | 2018-11-29 | 2019-02-22 | 济南第机床有限公司 | A kind of postposition type electric main shaft device |
| CN109366203A (en) * | 2018-11-29 | 2019-02-22 | 济南第机床有限公司 | A kind of high rigidity lathe spindle box device |
| CN110814879A (en) * | 2019-11-07 | 2020-02-21 | 上海机床厂有限公司 | Sealing structure of deep hole internal grinding tool |
| CN111745543A (en) * | 2020-06-12 | 2020-10-09 | 南通百维精工设备有限公司 | Spindle for dressing CBN grinding wheel of bearing grinding machine |
-
2013
- 2013-11-26 CN CN201320772954.5U patent/CN203600055U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150101A (en) * | 2015-10-20 | 2015-12-16 | 广东豪特曼智能机器有限公司 | Working head of internal grinder |
| CN106438687A (en) * | 2016-12-09 | 2017-02-22 | 瓦房店轴承集团有限责任公司 | Pairing angular contact ball bearing for solar energy crystal silicon slicing machine |
| CN107775823A (en) * | 2017-11-17 | 2018-03-09 | 福建省南安市万福机械有限公司 | A kind of modified main spindle box and the slab cutting machine with modified main spindle box |
| CN108145597A (en) * | 2018-02-06 | 2018-06-12 | 湘潭大学 | A kind of pneumatic grinder head device of flexibility |
| CN108942660A (en) * | 2018-08-22 | 2018-12-07 | 襄阳福坦铁路轴承有限公司 | Detachable spindle assemblies and polishing machine |
| CN109366202A (en) * | 2018-11-29 | 2019-02-22 | 济南第机床有限公司 | A kind of postposition type electric main shaft device |
| CN109366203A (en) * | 2018-11-29 | 2019-02-22 | 济南第机床有限公司 | A kind of high rigidity lathe spindle box device |
| CN110814879A (en) * | 2019-11-07 | 2020-02-21 | 上海机床厂有限公司 | Sealing structure of deep hole internal grinding tool |
| CN110814879B (en) * | 2019-11-07 | 2022-03-11 | 上海机床厂有限公司 | Sealing structure of deep hole internal grinding tool |
| CN111745543A (en) * | 2020-06-12 | 2020-10-09 | 南通百维精工设备有限公司 | Spindle for dressing CBN grinding wheel of bearing grinding machine |
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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: 20140521 Termination date: 20171126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |