CN202240795U - Sphere grinding machine grinding head main shaft assembly having a hollow cooling and flushing structure - Google Patents
Sphere grinding machine grinding head main shaft assembly having a hollow cooling and flushing structure Download PDFInfo
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- CN202240795U CN202240795U CN2011203243863U CN201120324386U CN202240795U CN 202240795 U CN202240795 U CN 202240795U CN 2011203243863 U CN2011203243863 U CN 2011203243863U CN 201120324386 U CN201120324386 U CN 201120324386U CN 202240795 U CN202240795 U CN 202240795U
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- main shaft
- hydrojet
- grinding
- bearing
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Abstract
The utility model relates to a sphere grinding machine grinding head main shaft assembly having a hollow cooling and flushing structure; the sphere grinding machine grinding head main shaft assembly comprises a grinding disk 1, a bearing I 3, a bearing II 6, a sleeve 4, a main shaft 5 and a belt wheel 7, wherein the main shaft 5 is arranged in the sleeve 4 by the bearing I 3 and the bearing II 6, and the belt wheel 7 and the grinding disk 1 are respectively fixed at two ends of the main shaft 5. An axial through hole 9 is arranged in the middle of the main shaft 5, a rotary joint 8 is connected at the rear end of the main shaft 5, a liquid spray pressing disk 2 is connected at the front end of the main shaft 5 and is fixed at the center of an inner cavity of the grinding disk 1, the liquid inlet of the liquid spray pressing disk 2 is communicated with the front end of the axial through hole 9, and the inner cavity of the rotary joint 8 is communicated with the rear end of the axial through hole 9. The sphere grinding machine grinding head main shaft assembly solves two defects of poor main shaft thermal stability and single cooling liquid supply manner, improves the precision and the stability of the machine tool, and is mainly applicable to grinding head main shafts of grinding machines for grinding symmetrical spheres in the ball valve industry.
Description
Technical field
The utility model belongs to the spheric grinding machine technical field, is specifically related to a kind of spheroid grinder head main shaft assembly with hollow cooling flushing mechanism.
Background technology
The spheroid surface of sphere after the existing spheroid grinding machine processing and the precision of surface roughness can't reach designing requirement.Tracing it to its cause mainly exists two big drawbacks, and the one, the spindle unit poor heat stability, the grinding ball trueness error is big.The spindle unit heat endurance comprises temperature stabilization and stable accuracy.Existing main axle structure has only carried out simple lubricated to bearing, take corresponding measure, cause the main shaft bearing life-span short and cause the thermal deformation of spindle unit not have to the heating of other driving member, and fault rate is high.The 2nd, the cooling fluid supply mode is single, and developing result is not obvious, and the grinding ball surface quality is poor.Cooling fluid not only can be taken away the cutting heat at grinding process, and can wash away the sand grains and the abrasive dust of grinding area.Existing feed liquid way all is to spray to grinding area from the outside; But since the spheroid grinding with the mill peripheral speed than higher; The very thin air of one deck around its surface also along with the rotation of mill one superhigh speed, has formed one high velocity air, has hindered cooling fluid and has got into grinding area; In fact do not reach the cooling flushing action, cause the surface quality of grinding ball very poor.
The utility model content
The technical problem that the utility model solves: design a kind of spheroid grinder head main shaft assembly, solve main shaft poor heat stability and two single drawbacks of cooling fluid supply mode, to improve machine tool accuracy and stability with hollow cooling flushing mechanism.Mainly be applicable to the grinding spindle of the used grinding machine of ball valve industry grinding symmetry spheroid.
The technical scheme that the utility model adopts: a kind of spheroid grinder head main shaft assembly with hollow cooling flushing mechanism; Comprise mill, bearing I, bearing I I, sleeve, main shaft and belt pulley; Said main shaft is installed in the sleeve through bearing I, bearing I I, and belt pulley and mill are separately fixed at the two ends of main shaft.The center of said main shaft has axially extending bore; The rear end of main shaft is connected with swivel joint; The front end of main shaft is connected with the hydrojet platen; And the hydrojet platen is fixed on the inner chamber central authorities of mill, and the inlet of hydrojet platen is communicated with the front end of axially extending bore, and the inner chamber of swivel joint is communicated with the rear end of axially extending bore.
Said hydrojet platen is made up of the connection shaft that circular disk body and circular disk body rear end central authorities have, and is inserted into the front end central authorities of main shaft through connection shaft; Radially be uniformly distributed with the hydrojet passage in the circular disk body, the front end face of circular disk body is uniformly distributed with spray hole, and spray hole is communicated with the end of hydrojet passage; The central authorities of said connection shaft have liquid outlet channel, and the rear end of liquid outlet channel is communicated with axially extending bore, front end and hydrojet channel connection.
Radially be uniformly distributed with eight hydrojet passages in the said circular disk body, the front end face of circular disk body is uniformly distributed with eight spray holes, and eight spray holes respectively with the terminal corresponding connection of eight hydrojet passages; The top of said eight hydrojet passages all is communicated with the front end of liquid outlet channel.
Said spray hole is outward-dipping inclined hole.
The horizontal sextant angle of said spray hole is 50 °-55 °.
The utility model has compared with prior art made full use of the coolant system of former lathe; Under the prerequisite that does not increase other functional part; Solve the problem such as heat endurance and grinding surface quality difference of machine tool spindles, fundamentally improved the machining accuracy and the stability of lathe.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the utility model hydrojet platen structural representation,
Fig. 3 is the A-A cutaway view of Fig. 2.
The specific embodiment
A kind of embodiment of the utility model is described below in conjunction with accompanying drawing 1,2,3.
A kind of spheroid grinder head main shaft assembly with hollow cooling flushing mechanism; Comprise mill 1, bearing I 3, bearing I I 6, sleeve 4, main shaft 5 and belt pulley 7; Said main shaft 5 is installed in the sleeve 4 through bearing I 3, bearing I I 6, and belt pulley 7 and mill 1 are separately fixed at the two ends of main shaft 5.The center of said main shaft 5 has axially extending bore 9; The rear end of main shaft 5 is connected with swivel joint 8; The front end of main shaft 5 is connected with hydrojet platen 2; And hydrojet platen 2 is fixed on the inner chamber central authorities of mill 1, and the inlet of hydrojet platen 2 is communicated with the front end of axially extending bore 9, and the inner chamber of swivel joint 8 is communicated with the rear end of axially extending bore 9.
Said hydrojet platen 2 is made up of circular disk body 10 and the connection shaft 14 that circular disk body 10 rear end central authorities have, and is inserted into the front end central authorities of main shaft 5 through connection shaft 14, and passes through sealing ring 15 sealings; The central authorities of connection shaft 14 have liquid outlet channel 11, radially are uniformly distributed with eight hydrojet passages 12 in the said circular disk body 10, and the front end face of circular disk body 10 is uniformly distributed with eight spray holes 13, and eight spray holes 13 respectively with the terminal corresponding connection of eight hydrojet passages 12; The top of said eight hydrojet passages 12 all is communicated with the front end of liquid outlet channel 11, and the rear end of liquid outlet channel 11 is communicated with axially extending bore 9.
Said spray hole 13 is outward-dipping inclined hole, and its horizontal sextant angle is 50 °-55 °, can arrive grinding area along the tangential direction of spherome surface with the cooling fluid that guarantees ejection, and can not stopped by spheroid, realizes the cooling flushing action.
During use the utility model is fixed in the spindle hole on the lathe housing through sleeve 4, the swivel joint 8 of rear end connects cooling fluid, and power is delivered to main shaft 5 through belt and belt pulley 7, makes it drive mill 1 rotation, thereby accomplishes the grinding to spheroid.Cooling fluid directly gets into the axially extending bore 9 in the main shaft 5 through swivel joint 8 during main shaft 5 work, from hydrojet platen 2, sprays to grinding area and spherome surface the equally distributed spray hole 13 under the centrifugal action that when main shaft 5 rotations, produces.
The utility model cooling fluid is to supply with continuously; When it flows through spindle hole; Not only let bearing I 3, bearing I I 6 be in lubricated (oil or fat) and add in the operating mode of cooling (cooling fluid), and the main shaft 5 of rotation has at a high speed been played good cooling effect, its temperature field is evenly distributed; Fundamentally improve the spindle unit heat endurance, satisfied the requirement of grinding ball precision.
The utility model has changed original outside feed liquid way from spindle hole 9 through the cooling fluid of hydrojet platen 2 ejections fully, makes its inner chamber central authorities ejection from mill 1, gets into grinding area smoothly.At feed flow flow 80～100L/min; Under pressure 0.2～0.3Mpa situation, cooling fluid can absorb and take away a large amount of heat in metal cuttings on the one hand, prevents the spherome surface burn; Directly can in time rinse out the sand grains and the abrasive dust of emery stick and spherome surface on the other hand; Make emery stick sharp, the Grinding Contact district cleans, and has improved the surface quality of grinding efficiency and spheroid.
The foregoing description, just the preferred embodiment of the utility model is not to be used for limiting the utility model practical range, so all equivalences of being done with the said content of the utility model claim change, all should be included within the utility model claim scope.
Claims (5)
1. one kind has the spheroid grinder head main shaft assembly that hollow is cooled off flushing mechanism; Comprise mill (1), bearing I (3), bearing I I (6), sleeve (4), main shaft (5) and belt pulley (7); Said main shaft (5) is installed in the sleeve (4) through bearing I (3), bearing I I (6); Belt pulley (7) and mill (1) are separately fixed at the two ends of main shaft (5), it is characterized in that: the center of said main shaft (5) has axially extending bore (9), and the rear end of main shaft (5) is connected with swivel joint (8); The front end of main shaft (5) is connected with hydrojet platen (2); And hydrojet platen (2) is fixed on the inner chamber central authorities of mill (1), and the inlet of hydrojet platen (2) is communicated with the front end of axially extending bore (9), and the inner chamber of swivel joint (8) is communicated with the rear end of axially extending bore (9).
2. the spheroid grinder head main shaft assembly with hollow cooling flushing mechanism according to claim 1; It is characterized in that: said hydrojet platen (2) is made up of the connection shaft (14) that circular disk body (10) and circular disk body (10) rear end central authorities have, and is inserted into the front end central authorities of main shaft (5) through connection shaft (14); Radially be uniformly distributed with hydrojet passage (12) in the circular disk body (10), the front end face of circular disk body (10) is uniformly distributed with spray hole (13), and spray hole (13) is communicated with the end of hydrojet passage (12); The central authorities of said connection shaft (14) have liquid outlet channel (11), and the rear end of liquid outlet channel (11) is communicated with axially extending bore (9), and front end is communicated with hydrojet passage (12).
3. the spheroid grinder head main shaft assembly with hollow cooling flushing mechanism according to claim 2; It is characterized in that: radially be uniformly distributed with eight hydrojet passages (12) in the said circular disk body (10); The front end face of circular disk body (10) is uniformly distributed with eight spray holes (13), and eight spray holes (13) respectively with the terminal corresponding connection of eight hydrojet passages (12); The top of said eight hydrojet passages (12) all is communicated with the front end of liquid outlet channel (11).
4. according to claim 2 or 3 described spheroid grinder head main shaft assemblies with hollow cooling flushing mechanism, it is characterized in that: said spray hole (13) is outward-dipping inclined hole.
5. the spheroid grinder head main shaft assembly with hollow cooling flushing mechanism according to claim 4, it is characterized in that: the horizontal sextant angle of said spray hole (13) is 50 °-55 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203243863U CN202240795U (en) | 2011-08-31 | 2011-08-31 | Sphere grinding machine grinding head main shaft assembly having a hollow cooling and flushing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203243863U CN202240795U (en) | 2011-08-31 | 2011-08-31 | Sphere grinding machine grinding head main shaft assembly having a hollow cooling and flushing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202240795U true CN202240795U (en) | 2012-05-30 |
Family
ID=46102095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203243863U Expired - Lifetime CN202240795U (en) | 2011-08-31 | 2011-08-31 | Sphere grinding machine grinding head main shaft assembly having a hollow cooling and flushing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202240795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284907A (en) * | 2011-08-31 | 2011-12-21 | 孟灵杰 | Grinding head spindle assembly provided with hollow cooling and washing structure of ball grinding machine |
| CN113351943A (en) * | 2021-07-07 | 2021-09-07 | 山西风源机械制造有限公司 | Cyclone mill with grinding function |
-
2011
- 2011-08-31 CN CN2011203243863U patent/CN202240795U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284907A (en) * | 2011-08-31 | 2011-12-21 | 孟灵杰 | Grinding head spindle assembly provided with hollow cooling and washing structure of ball grinding machine |
| CN102284907B (en) * | 2011-08-31 | 2013-07-10 | 孟灵杰 | Grinding head spindle assembly provided with hollow cooling and washing structure of ball grinding machine |
| CN113351943A (en) * | 2021-07-07 | 2021-09-07 | 山西风源机械制造有限公司 | Cyclone mill with grinding function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |