CN215748575U - High-precision headstock - Google Patents
High-precision headstock Download PDFInfo
- Publication number
- CN215748575U CN215748575U CN202122039361.5U CN202122039361U CN215748575U CN 215748575 U CN215748575 U CN 215748575U CN 202122039361 U CN202122039361 U CN 202122039361U CN 215748575 U CN215748575 U CN 215748575U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearings
- paired
- dustproof
- sleeved
- 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
Links
- 238000009434 installation Methods 0.000 claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 6
- 239000000428 dust Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model discloses a high-precision headstock which has the technical scheme that: including box and main shaft, its characterized in that: the main shaft is arranged in the mounting cavity, one side of the mounting cavity is provided with first paired bearings, two groups of the first paired bearings are sleeved on the front end of the main shaft, the other side of the mounting cavity is provided with second paired bearings, and the second paired bearings are sleeved on the tail end of the main shaft; the front end of the main shaft is provided with a key groove, the front and the back of the main shaft are supported by a first paired bearing and a second paired bearing with high precision, the function of a tip and a shifting fork is eliminated, the structure is simple, the precision is high, the front end of the main shaft is a flange which corresponds to the positioning installation of a clamp interface, the key groove is arranged at the back part of the main shaft, the main shaft is conveniently driven by a variable frequency motor when being matched with a belt wheel, and the coaxiality of a clamping outer diameter to a grinding outer diameter or an aperture can be controlled within 0.004mm when the main shaft is ground by using the clamping method.
Description
Technical Field
The utility model relates to the field of machining, in particular to a high-precision headstock.
Background
The universal headstock of the cylindrical grinding machine is regulated by two groups of V-belts, the front end of the main shaft is supported by a taper sliding bearing, the rear end of the main shaft is supported by a rolling bearing, when the two centers are ground by a drive plate, the centers are not positioned and the drive plate drives a workpiece to rotate and grind; when clamping and grinding, the main shaft rotates and is provided with a Morse taper shank flange for mounting a three-jaw chuck or a special fixture.
When the clamping method is used for grinding, the coaxiality of the clamping outer diameter to the grinding outer diameter or the bore diameter is poor, generally more than 0.01mm, and the clamping method can not be basically applied to the oil pump industry.
SUMMERY OF THE UTILITY MODEL
In view of the problems noted in the background, it is an object of the present invention to provide a high precision headgear that addresses the problems noted in the background.
The technical purpose of the utility model is realized by the following technical scheme:
the high-precision headstock comprises a box body and a main shaft, wherein an installation cavity is arranged in the box body, the main shaft is installed in the installation cavity, a first pair of bearings are installed on one side of the installation cavity, the two groups of first pair of bearings are sleeved on the front end of the main shaft, a second pair of bearings are installed on the other side of the installation cavity, and the second pair of bearings are sleeved on the tail end of the main shaft;
the front end of the main shaft is provided with a key groove, and the tail end of the main shaft is provided with a flange.
By adopting the technical scheme, the front and the back of the main shaft are supported by the first paired bearing and the second paired bearing with high precision, the function of a tip and a shifting fork is eliminated, the structure is simple, the precision is high, the front end of the main shaft is a flange which is positioned and installed corresponding to an interface of the clamp, the rear part of the main shaft is provided with a key groove, the main shaft is conveniently driven by a variable frequency motor when being matched with a belt wheel, and the coaxiality of the clamping outer diameter to the grinding outer diameter or the aperture can be controlled within 0.004mm when the main shaft is ground by using the clamping method.
Preferably, an inner spacer is arranged in the mounting cavity, the inner spacer is sleeved on the main shaft, and two ends of the inner spacer respectively abut against the first paired bearings and the second paired bearings.
By adopting the technical scheme, the inner spacer ring arranged in the mounting cavity is beneficial to reducing the friction of the box body on the main shaft, and the protection performance of the main shaft is improved.
Preferably, one side of the first paired bearings is provided with a first dustproof gasket, one side of the first dustproof gasket is provided with a baffle ring, and the baffle ring is sleeved on the main shaft.
Through adopting above-mentioned technical scheme, the dustproof effect that the first dustproof gasket that is equipped with is favorable to reducing the main shaft end prevents that impurity from getting into first pair bearing in, causes first pair bearing wearing and tearing, and the fender ring that is equipped with is favorable to supporting tightly first dustproof gasket on first pair bearing.
Preferably, a locking nut is arranged on one side of the baffle ring, and the locking nut is installed on the main shaft in a threaded mode.
By adopting the technical scheme, the locking nut is in threaded connection with the main shaft, so that the baffle ring is conveniently and fixedly arranged on the main shaft.
Preferably, a first dustproof cover is arranged at the tail end of the main shaft, and one end of the first dustproof cover abuts against the box body.
Through adopting above-mentioned technical scheme, the first shield that is equipped with is favorable to improving the terminal dustproof ability of main shaft.
Preferably, a second dustproof cover is arranged at the front end of the main shaft, and one end of the second dustproof cover is in contact with the end face of the box body.
Through adopting above-mentioned technical scheme, be favorable to improving the dustproof performance of the front end of main shaft through the second shield that is equipped with.
Preferably, a second dustproof sealing gasket and a sealing ring are respectively arranged on two sides of the second paired bearing.
Through adopting above-mentioned technical scheme, through the second dustproof sealing pad that is equipped with be favorable to reducing the wearing and tearing of the impurity of installation cavity to the second pair bearing, reduced the influence of the outside impurity of box to the second pair bearing through the sealing washer.
In summary, the utility model mainly has the following beneficial effects:
in the high-precision headstock, a main shaft is supported by a first paired bearing and a second paired bearing with high precision in the front and the back, so that the function of a tip and a shifting fork is eliminated, and the high-precision headstock is simple in structure and high in precision;
secondly, in the high-precision headstock, the front end of the main shaft is a flange which is positioned and installed corresponding to the clamp interface, the rear part of the main shaft is provided with a key groove, the main shaft is conveniently driven by a variable frequency motor when being matched with a belt wheel, and the coaxiality of the clamping outer diameter to the grinding outer diameter or the bore diameter can be controlled within 0.004mm when the main shaft is ground by the clamping method.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Reference numerals: 1. a box body; 2. a main shaft; 3. installing a cavity; 4. a first pair of bearings; 5. a second pair of bearings; 6. a keyway; 7. a flange; 8. an inner spacer ring; 9. a first dust-proof spacer; 10. a baffle ring; 11. Locking the nut; 12. a first dust cover; 13. a second dust cover; 14. a second dust-proof seal; 15. And (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the high-precision headstock comprises a case 1 and a spindle 2, wherein a mounting cavity 3 is arranged in the case 1, the spindle 2 is mounted in the mounting cavity 3, a first pair of bearings 4 are mounted on one side of the mounting cavity 3, two groups of the first pair of bearings 4 are sleeved on the front end of the spindle 2, a second pair of bearings 5 are mounted on the other side of the mounting cavity 3, and the second pair of bearings 5 are sleeved on the tail end of the spindle 2;
the front end of the main shaft 2 is provided with a key groove 6, and the tail end of the main shaft 2 is provided with a flange 7.
Referring to fig. 1, an inner spacer 8 is arranged in the installation cavity 3, the inner spacer 8 is sleeved on the main shaft 2, two ends of the inner spacer 8 are respectively abutted between the first paired bearings 4 and the second paired bearings 5, and the inner spacer 8 arranged in the installation cavity 3 is beneficial to reducing friction of the box body 1 on the main shaft 2 and improving the protection performance on the main shaft.
Referring to fig. 2, a first dustproof gasket 9 is disposed on one side of the first paired bearing 4, a blocking ring 10 is disposed on one side of the first dustproof gasket 9, the blocking ring 10 is sleeved on the main shaft 2, the first dustproof gasket 9 is disposed to facilitate reducing a dustproof effect at the end of the main shaft 2, so that impurities are prevented from entering the first paired bearing 4 to cause abrasion of the first paired bearing 4, and the blocking ring 10 is disposed to facilitate abutting the first dustproof gasket 9 on the first paired bearing 4.
Referring to fig. 2, a locking nut 11 is disposed on one side of the retainer ring 10, the locking nut 11 is threadedly mounted on the main shaft 2, and the locking nut 11 is threadedly connected with the main shaft 2, so that the retainer ring 10 is fixedly mounted on the main shaft 2.
Referring to fig. 1, the end of the main shaft 2 is provided with a first dust cover 12, one end of the first dust cover 12 abuts against the box body 1, and the first dust cover 12 is provided to improve the dust-proof capability of the end of the main shaft 2.
Referring to fig. 1, a second dust cap 13 is disposed at the front end of the main shaft 2, one end of the second dust cap 13 is in contact with the end surface of the box body 1, and the second dust cap 13 is disposed to improve the dust-proof performance of the front end of the main shaft 2.
Referring to fig. 1, a second dustproof sealing gasket 14 and a sealing ring 15 are respectively arranged on two sides of the second paired bearing 5, the second dustproof sealing gasket 14 is favorable for reducing the abrasion of impurities in the installation cavity 3 to the second paired bearing 5, and the influence of the impurities outside the box body 1 on the second paired bearing 5 is reduced through the sealing ring 15.
The use principle and the advantages are as follows:
when the high-precision head frame is used, the front and the back of the main shaft 2 are supported by the first paired bearing 4 and the second paired bearing 5 with high precision, the function of a tip and a shifting fork is removed, the structure is simple, the precision is higher, the front end of the main shaft 2 is provided with a flange 7 which is positioned and installed corresponding to an interface of a clamp, the rear part of the main shaft is provided with a key groove 6, when a belt wheel is matched, the variable frequency motor is convenient to drive, when the clamping method is used for grinding, the coaxiality of the clamping outer diameter to the grinding outer diameter or the bore diameter can be controlled within 0.004mm, the inner spacer 8 arranged in the mounting cavity 3 is beneficial to reducing the friction of the box body 1 on the main shaft 2, the protection performance of the main shaft is improved, the first dustproof gasket 9 is beneficial to reducing the dustproof effect of the tail end of the main shaft 2, impurities are prevented from entering the first paired bearing 4 to cause abrasion of the first paired bearing 4, and the arranged baffle ring 10 is beneficial to abutting the first dustproof gasket 9 on the first paired bearing 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. High accuracy headstock, including box (1) and main shaft (2), its characterized in that: an installation cavity (3) is formed in the box body (1), the main shaft (2) is installed in the installation cavity (3), a first pair of bearings (4) is installed on one side of the installation cavity (3), two groups of first pair of bearings (4) are sleeved on the front end of the main shaft (2), a second pair of bearings (5) are installed on the other side of the installation cavity (3), and the second pair of bearings (5) are sleeved on the tail end of the main shaft (2);
the front end of the main shaft (2) is provided with a key groove (6), and the tail end of the main shaft (2) is provided with a flange (7).
2. The high precision headgear of claim 1 wherein: an inner spacer ring (8) is arranged in the mounting cavity (3), the inner spacer ring (8) is sleeved on the main shaft (2), and two ends of the inner spacer ring (8) are respectively abutted between the first paired bearings (4) and the second paired bearings (5).
3. The high precision headgear of claim 1 wherein: one side of the first paired bearing (4) is provided with a first dustproof gasket (9), one side of the first dustproof gasket (9) is provided with a baffle ring (10), and the baffle ring (10) is sleeved on the main shaft (2).
4. A high precision headgear according to claim 3 wherein: one side of the baffle ring (10) is provided with a locking nut (11), and the locking nut (11) is installed on the main shaft (2) in a threaded mode.
5. The high precision headgear of claim 1 wherein: the tail end of the main shaft (2) is provided with a first dustproof cover (12), and one end of the first dustproof cover (12) abuts against the box body (1).
6. The high precision headgear of claim 1 wherein: the front end of the main shaft (2) is provided with a second dustproof cover (13), and one end of the second dustproof cover (13) is in contact with the end face of the box body (1).
7. The high precision headgear of claim 1 wherein: and a second dustproof sealing gasket (14) and a sealing ring (15) are respectively arranged on two sides of the second paired bearing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122039361.5U CN215748575U (en) | 2021-08-27 | 2021-08-27 | High-precision headstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122039361.5U CN215748575U (en) | 2021-08-27 | 2021-08-27 | High-precision headstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215748575U true CN215748575U (en) | 2022-02-08 |
Family
ID=80079299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122039361.5U Expired - Fee Related CN215748575U (en) | 2021-08-27 | 2021-08-27 | High-precision headstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215748575U (en) |
-
2021
- 2021-08-27 CN CN202122039361.5U patent/CN215748575U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002126958A (en) | Rotary table device | |
| CN215748575U (en) | High-precision headstock | |
| CN114310367A (en) | Large length-diameter ratio thin-wall shell vibration reduction tool | |
| CN215171626U (en) | High-speed high-rigidity waterproof grinding wheel electric spindle structure | |
| CN216759301U (en) | Lathe is reformed transform and is used grinding carriage device | |
| CN104802076A (en) | Main shaft device of centerless grinding machine | |
| CN109434145A (en) | The dedicated mandrel tool of high precision machine tool belt pulley dynamic balancing | |
| TW202237330A (en) | Rotation indexing device | |
| CN208945914U (en) | A kind of cylindrical grinder main shaft | |
| CN105290430A (en) | High-speed numerical-control lathe spindle | |
| CN210616950U (en) | Small-sized spindle unit for optical lens edge grinding machine | |
| CN209206497U (en) | The dedicated mandrel tool of high precision machine tool belt pulley dynamic balancing | |
| CN107571075B (en) | High-speed spindle of numerical control horizontal milling and boring machine and assembly method | |
| CN214393502U (en) | Multi-size high-precision hole machining mechanism | |
| CN213411618U (en) | Grinding machine main shaft copper sheathing location structure | |
| CN103128656A (en) | Ball-milling mechanical grinding-wheel-rack spindle | |
| CN212976739U (en) | Collet type precision spindle | |
| CN219725788U (en) | Grinding wheel spindle with high sealing performance | |
| CN216802945U (en) | Inner hole polishing device | |
| CN215788431U (en) | Auxiliary guide shaft transmission mechanism of numerical control machine tool | |
| CN218110433U (en) | Servo jacking tailstock of cylindrical grinding machine | |
| CN220944787U (en) | Headstock structure for improving grinding precision of bearing raceway | |
| CN211639500U (en) | High-precision movable center | |
| CN219336004U (en) | Lathe positioning device | |
| CN218427630U (en) | Inner hole honing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220208 |