CN103042238B - High-speed direct spindle - Google Patents
High-speed direct spindle Download PDFInfo
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- CN103042238B CN103042238B CN201210588248.5A CN201210588248A CN103042238B CN 103042238 B CN103042238 B CN 103042238B CN 201210588248 A CN201210588248 A CN 201210588248A CN 103042238 B CN103042238 B CN 103042238B
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Abstract
The invention relates to a high-speed direct spindle, in particular to a direct spindle, high in rotating speed, large in torque and capable of automatically changing tools. A cylinder component (14) fixed at the tail of an adjusting pad (7) comprises a cylinder block (14.3), a hollow piston (15), and a sensor positioning rack (5), wherein the cylinder block (14.3) is provided with an axial broach oil feed hole (14.2) and a punch oil feed hole (14.6) on the outer wall, the tail of the hollow piston (15) in an inner cavity of the cylinder block (14.3) protrudes the cylinder block (14.3), and the sensor positioning rack (5) is disposed at the upper end of the cylinder block (14.3). A limit nut (1) is fixed at the tail of the piston (15), protruding the cylinder block. A cylinder push ring (2) is fixed in the lower inner cavity of the piston (15). An oil channel communicated with the punch oil feed hole (14.6) is arranged in the middle wall of the piston (15). The high-speed direct spindle with precise structure and high-speed rotating bearings is available in high-speed rotation at higher speed, and is simple in structure, convenient to use, long in service life and convenient to popularize and apply.
Description
Technical field
The present invention relates to a kind of machining equipment, specifically a kind of high rotating speed, high pulling torque automatic tool changer direct-connected main shaft.
Background technology
In the prior art, ball high-speed machine tool main shaft complicated integral structure and loose, difficult processing and symmetry is poor, therefore operating accuracy is low, rotating speed is low, on the other hand existing main shaft can not automatic tool changer, needs people's hand operated, and this is with regard to waste of manpower and consume too many man-hour; General main shaft does not possess the function of inside and outside drifting dust, and the service life of equipment is short and security performance is low.
Summary of the invention
The invention provides a kind of high speed direct-connected main shaft, which overcome the deficiencies in the prior art
The technology of the present invention solution includes, and includes straight pin (3), Thrust nut (4), pre-loading screw (5), pretension disc spring (6), spacer (7), upper bearing inner ring locknut (8), upper bearing (metal) gland assembly (9), bearing (10), axle core component (11), sensor localization frame (12), rod assembly (13) piston (15), cylinder block set (16), between centers spacer assembly (17), spacer assembly (18), pulling claw assembly (19), bottom end cover assembly (20), the present invention is particularly in the afterbody having cylinder component (14) to be fixed on spacer (7), and described cylinder component (14) includes the cylinder body (14.3) of axial broaching tool fuel feed hole (14.2) of outer wall belt and fuel feed hole of forging a knife (14.6), cylinder body (14.3) inner chamber and afterbody protrude the hollow piston (15) of cylinder body (14.3), the sensor localization frame (12) of cylinder body (14.3) upper surface, wherein, piston (15) evagination is fixed with stop nut (1) on the afterbody of cylinder body, be fixed with oil cylinder in the lower lumen of piston (15) and push away circle (2), in the wall body of piston (15) middle part, be provided with the oil duct communicated with fuel feed hole of forging a knife (14.6).
The outer wall that described piston (15) middle part contacts with cylinder body (14.3) is provided with O type circle (14.8), and the outer wall that under piston (15), protuberance contacts with cylinder body (14.3) is provided with Y-shaped ring (14.4).
Described cylinder block set (16) bottom is provided with bottom end cover assembly (20), lower end assemblies (20) includes bottom end cover main body (20.1), the upper surface of bottom end cover main body (20.1) step is provided with axial curtain air admission hole (20.2), the step outer wall of bottom end cover main body (20.1) is fixed with lower end bezel ring, cover, cutter ring spray water ring groove (20.3) is provided with between lower end bezel ring, cover and bottom end cover main body (20.1) step, cutter ring spray water ring groove (20.3) upper, under be equipped with O RunddichtringO (20.4), the inwall of bottom end cover main body (20.1) is also provided with cooling water inlet (20.5), the bottom of bottom end cover main body (20.1) is provided with gimbaled nozzle (20.6).
Described axle core component (11) comprises axle core main body (11.1), rod assembly (13) is provided with in the axial pass-through holes of axle core main body (11.1), axle core main body (11.1) is provided with straight pin (3), the upper and lower part of straight pin (3) is provided with oil cylinder and pushes away circle (2), is respectively equipped with disk spring (11.2), disc spring gland (11.3) and pulling claw assembly (11.4) in axle core main body (11.1), in the axial pass-through holes of bottom from top to bottom.
Operation principle of the present invention: loose broaching tool operation principle: the enterprising porose oiling of cylinder component (14), promote piston (15) to move downward, oil cylinder is driven to push away circle (2) and straight pin (3), finally act on the rod assembly (13) be fixed in axle center on hole end surface, rod assembly (13) front end is fixed, rear end is stressed to be moved down, and disc spring elastic deformation by compression produces the force direction of reset upward; Grasp assembly (19) to move down under the drive of pull bar, pintongs grasps in the process of moving down, and affects by spring straining power, and front end is flared to the size that handle of a knife can free in and out, grasp front end to Latin end face force, handle of a knife to be released, realize forging a knife action; Cylinder component (14) reset hole oil-feed, fuel feed hole stops oil-feed and keeps UNICOM's state, piston (15) resets, disc spring group reset pull-up, grasps assembly (19) and moves up, and front opening locking tension handle of a knife completes broaching tool action.
Bearing protection mechanism operation principle: when main shaft is forged a knife, cylinder component (14) oil-feed simultaneously, air inlet, provide Li Hezhouxin center of forging a knife to give vent to anger.Time air blowing in center, a small amount of gas can enter main shaft inner chamber by flowing out in the fit clearance of rod assembly (13) and straight pin (3), Thrust nut (4) and spacer (7) are with the use of having labyrinth structure, prevent the air-blowing of high pressure drifting dust from entering bearing, gas can be discharged from spacer (7) rod radial air vent, prevent residual gas from entering bearing, dilution bearing grease, reduces bearing service life; In addition when forging a knife; rod assembly (13) is stressed acts directly on axle core component (11) endoporus upper surface; dynamic bearing (10) can be with stressed; when bearing (10) is stressed exceed certain value time; the damage of bearing can be caused; this kind of direct-connected main shaft supports stressed by the spacer (7) be fixed on body; reaction force presses on the pretension disc spring (6) that tight screw (5) is connected; when power exceed bearing can bear safe pressure time, pretension disc spring (6) pressurized and decomposition pressure protection bearing.
The invention has the advantages that:
1: more easily reach high rotating speed, and still can keep high radial and axial rigidity;
2: adopt grease lubrication, reduce costs raising rotating speed;
3: the labyrinth structure of front-end of spindle and air curtain design, make main shaft seal performance more excellent, effectively can prevent cutting swarf or other foreign matters etc. from entering main shaft bearing, cause bearing damage;
4: main shaft system of forging a knife adopts high voltage type oil hydraulic cylinder, special stem seal design.Good seal performance, compact conformation, long service life;
5: tool-broaching mechanism adopts specially treated to ensure material guarantee high rigidity and high tenacity, guarantees that grasping the cutting force that can bear heavily loaded machining can extend again the service life grasped;
6: external form circulating cooling system in adopting, the heat that cold oil strengthening subband bearing running produces, the heat effectively suppressing main shaft to produce, controls main shaft temperature rise, reduces main shaft thermal deformation, provides better machining accuracy and surface roughness.
Accompanying drawing explanation
Fig. 1 of the present inventionly analyses and observe organigram.
Fig. 2 is that cylinder component of the present invention analyses and observe organigram.
Fig. 3 is that axle core component of the present invention analyses and observe organigram.
Fig. 4 is that organigram analysed and observe by bottom end cover assembly of the present invention.
Detailed description of the invention
Embodiment 1
As shown in Figures 1 to 4, the present invention is in existing straight pin (3), Thrust nut (4), pre-loading screw (5), pretension disc spring (6), spacer (7), upper bearing inner ring locknut (8), upper bearing (metal) gland assembly (9), bearing (10), axle core component (11), sensor localization frame (12), rod assembly (13) piston (15), cylinder block set (16), between centers spacer assembly (17), spacer assembly (18), pulling claw assembly (19), on the basis of bottom end cover assembly (20), have cylinder component (14) to be fixed on the afterbody of spacer (7), described cylinder component (14) includes the cylinder body (14.3) of axial broaching tool fuel feed hole (14.2) of outer wall belt and fuel feed hole of forging a knife (14.6), cylinder body (14.3) inner chamber and afterbody protrude the hollow piston (15) of cylinder body (14.3), the sensor localization frame (12) of cylinder body (14.3) upper surface, wherein, piston (15) evagination is fixed with stop nut (1) on the afterbody of cylinder body, be fixed with oil cylinder in the lower lumen of piston (15) and push away circle (2), in the wall body of piston (15) middle part, be provided with the oil duct communicated with fuel feed hole of forging a knife (14.6).
Embodiment 2
Substantially identical with the structure of embodiment 1, difference is that the outer wall that described piston (15) middle part contacts with cylinder body (14.3) is provided with O type circle (14.8), and the outer wall that under piston (15), protuberance contacts with cylinder body (14.3) is provided with Y-shaped ring (14.4).
Embodiment 3
Substantially identical with the structure of embodiment 1, difference is that described cylinder block set (16) bottom is provided with bottom end cover assembly (20), lower end assemblies (20) includes bottom end cover main body (20.1), the upper surface of bottom end cover main body (20.1) step is provided with axial curtain air admission hole (20.2), the step outer wall of bottom end cover main body (20.1) is fixed with lower end bezel ring, cover, cutter ring spray water ring groove (20.3) is provided with between lower end bezel ring, cover and bottom end cover main body (20.1) step, cutter ring spray water ring groove (20.3) upper, under be equipped with O RunddichtringO (20.4), the inwall of bottom end cover main body (20.1) is also provided with cooling water inlet (20.5), the bottom of bottom end cover main body (20.1) is provided with gimbaled nozzle (20.6).
Embodiment 4
Substantially identical with the structure of embodiment 1, difference is that described axle core component (11) comprises axle core main body (11.1), rod assembly (13) is provided with in the axial pass-through holes of axle core main body (11.1), axle core main body (11.1) is provided with straight pin (3), the upper and lower part of straight pin (3) is provided with oil cylinder and pushes away circle (2), is respectively equipped with disk spring (11.2), disc spring gland (11.3) and pulling claw assembly (11.4) in axle core main body (11.1), in the axial pass-through holes of bottom from top to bottom.
Claims (4)
1. a high speed direct-connected main shaft, includes straight pin (3), Thrust nut (4), pre-loading screw (5), pretension disc spring (6), spacer (7), upper bearing inner ring locknut (8), upper bearing (metal) gland assembly (9), bearing (10), axle core component (11), sensor localization frame (12), rod assembly (13), piston (15), cylinder block set (16), between centers spacer assembly (17), spacer assembly (18), pulling claw assembly (19), bottom end cover assembly (20), it is particularly in the afterbody having cylinder component (14) to be fixed on spacer (7), and described cylinder component (14) includes the cylinder body (14.3) of axial broaching tool fuel feed hole (14.2) of outer wall belt and fuel feed hole of forging a knife (14.6), cylinder body (14.3) inner chamber and afterbody protrude the hollow piston (15) of cylinder body (14.3), the sensor localization frame (12) of cylinder body (14.3) upper surface, wherein, piston (15) evagination is fixed with stop nut (1) on the afterbody of cylinder body, be fixed with oil cylinder in the lower lumen of piston (15) and push away circle (2), in the wall body of piston (15) middle part, be provided with the oil duct communicated with fuel feed hole of forging a knife (14.6).
2. a kind of high speed direct-connected main shaft according to claim 1, it is characterized in that the outer wall that described piston (15) middle part contacts with cylinder body (14.3) is provided with O type circle (14.8), the outer wall that under piston (15), protuberance contacts with cylinder body (14.3) is provided with Y-shaped ring (14.4).
3. a kind of high speed direct-connected main shaft according to claim 1, it is characterized in that described cylinder block set (16) bottom is provided with bottom end cover assembly (20), bottom end cover assembly (20) includes bottom end cover main body (20.1), the upper surface of bottom end cover main body (20.1) step is provided with axial curtain air admission hole (20.2), the step outer wall of bottom end cover main body (20.1) is fixed with lower end bezel ring, cover, cutter ring spray water ring groove (20.3) is provided with between lower end bezel ring, cover and bottom end cover main body (20.1) step, cutter ring spray water ring groove (20.3) upper, under be equipped with O RunddichtringO (20.4), the inwall of bottom end cover main body (20.1) is also provided with cooling water inlet (20.5), the bottom of bottom end cover main body (20.1) is provided with gimbaled nozzle (20.6).
4. a kind of high speed direct-connected main shaft according to claim 1, it is characterized in that described axle core component (11) comprises axle core main body (11.1), rod assembly (13) is provided with in the axial pass-through holes of axle core main body (11.1), axle core main body (11.1) is provided with straight pin (3), the upper and lower part of straight pin (3) is provided with oil cylinder and pushes away circle (2), is respectively equipped with disk spring (11.2), disc spring gland (11.3) and pulling claw assembly (11.4) in axle core main body (11.1), in the axial pass-through holes of bottom from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588248.5A CN103042238B (en) | 2012-12-29 | 2012-12-29 | High-speed direct spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588248.5A CN103042238B (en) | 2012-12-29 | 2012-12-29 | High-speed direct spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103042238A CN103042238A (en) | 2013-04-17 |
| CN103042238B true CN103042238B (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210588248.5A Active CN103042238B (en) | 2012-12-29 | 2012-12-29 | High-speed direct spindle |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317154B (en) * | 2013-05-29 | 2016-05-18 | 贵阳新天光电科技有限公司 | High-precision main shaft system |
| CN103394716A (en) * | 2013-08-20 | 2013-11-20 | 广州市珠江机床厂有限公司 | Built-in hydraulic knife hitting device for directly connecting spindle and motor |
| CN103737408B (en) * | 2013-12-31 | 2016-08-17 | 广州市昊志机电股份有限公司 | A kind of high speed direct-connected main shaft |
| CN104028787B (en) * | 2014-06-27 | 2016-08-17 | 深圳市速锋科技有限公司 | A kind of direct connection mechanical main shaft structure |
| CN106466717B (en) * | 2015-08-18 | 2019-12-31 | 常州冠轴数控设备有限公司 | Floating knife striking type machining center spindle unit |
| CN110549149B (en) * | 2019-09-05 | 2024-06-04 | 深圳市爱贝科精密工业股份有限公司 | Floating type knife striking device and method for main shaft |
| CN110842224A (en) * | 2019-11-27 | 2020-02-28 | 江苏思维福特机械科技股份有限公司 | High-speed large-torque direct-connected spindle structure |
| CN114310416B (en) * | 2020-09-29 | 2024-06-21 | 清远市天一数控设备有限公司 | Novel spindle broach mechanism with pull claw integrated |
| CN112846256A (en) * | 2021-02-20 | 2021-05-28 | 广州市昊志机电股份有限公司 | Heavy-load electric spindle and machine tool |
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| JP2005319540A (en) * | 2004-05-10 | 2005-11-17 | Makino Milling Mach Co Ltd | Main spindle device of machine tool |
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| CN202356638U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Bearing assembly structure of air-floating high-speed electric spindle |
| CN202356951U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Thrust cylinder for high-speed mechanical ball spindles |
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- 2012-12-29 CN CN201210588248.5A patent/CN103042238B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005319540A (en) * | 2004-05-10 | 2005-11-17 | Makino Milling Mach Co Ltd | Main spindle device of machine tool |
| CN201271742Y (en) * | 2008-06-18 | 2009-07-15 | 浙江日发数码精密机械股份有限公司 | High speed electric main spindle apparatus of machine tool |
| CN202263941U (en) * | 2011-09-16 | 2012-06-06 | 安阳斯普机械有限公司 | Gear slicing device cutter main axle |
| CN202356640U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Close coupled ball spindle of high-speed machine tool |
| CN202356978U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Annular spray cooling structure of lower end cover of ball high speed mechanical main spindle |
| CN202356638U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Bearing assembly structure of air-floating high-speed electric spindle |
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| CN103042238A (en) | 2013-04-17 |
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