CN103567468B - Numerically controlled lathe double-channel water cooling electro spindle - Google Patents
Numerically controlled lathe double-channel water cooling electro spindle Download PDFInfo
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- CN103567468B CN103567468B CN201310421238.7A CN201310421238A CN103567468B CN 103567468 B CN103567468 B CN 103567468B CN 201310421238 A CN201310421238 A CN 201310421238A CN 103567468 B CN103567468 B CN 103567468B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Abstract
Numerically controlled lathe double-channel water cooling electro spindle, belongs to machine tool component device.The hollow main shaft of the present invention is installed on main spindle box body spindle hole two ends by the bearings in forward and backward bearing spider, and spindle drive is mainly made up of the rotor and stator being set in main shaft；Angle encoder apparatus is installed on rear-end of spindle by adapter sleeve, and brake gear includes being installed on the brake disc of adapter sleeve rear end and being installed on the water brake of main spindle box body rear end；Cooling system includes spindle cooling mechanism and bearing cooling mechanism, spindle cooling mechanism is mainly made up of the main shaft cooling-water duct being arranged between main spindle box body and stator adapter sleeve and being distributed between stator adapter sleeve front-end and back-end, and bearing cooling water mechanism is mainly made up of the bearing cooling water passage between main spindle box body and fore bearing bearing.Cooling water circulation by main shaft and bearing are formed the dual pathways, good heat dissipation effect and stability are high, solve existing air-cooled electro spindle radiating effect and cannot meet the defect of high speed high pulling torque processing needs.
Description
Technical field
The invention belongs to machine tool component device field, especially relevant with numerically controlled lathe double-channel water cooling electro spindle.
Background technology
At present, engine lathe main axle structure driving-chain is long, overall dimensions big, transmission moment of torsion is little, have impact on transmission accuracy and the positioning precision of lathe spindle, and needs stopping to add man-hour, and main shaft can not stop operating immediately, and controlling is poor.For solving the defect that above-mentioned engine lathe main shaft exists, applicant once developed a kind of air-cooled electric main shaft device of precise NC lathe, apply for the Chinese patent that Patent No. ZL201220337475.6, Authorization Notice No. are CN202667675U, and in Granted publication on January 16th, 2013.Although this air-cooled electric main shaft device can solve the defect of common main shaft, but such air cooling equipment radiating effect also cannot meet the needs of high speed high pulling torque processing, and it is little, in the electric main shaft device that power is low to be only applicable to driving torque.
Summary of the invention
The radiating effect that the purpose of the present invention is intended to overcome the air-cooled electric main shaft device of existing lathe to exist cannot meet the defect of high speed high pulling torque processing needs, it is provided that the numerically controlled lathe double-channel water cooling electro spindle of a kind of energy perfect heat-dissipating.
nullFor this，The present invention is by the following technical solutions: numerically controlled lathe double-channel water cooling electro spindle，Including main spindle box body、Fore bearing bearing、Rear bearing bearing、Hollow main shaft、Spindle drive、Angle encoder apparatus、Brake gear and cooling system，Spindle hole and gas-tpe fitting it is provided with on described main spindle box body，Fore bearing bearing、Before rear bearing bearing is respectively arranged in described spindle hole、Rear two ends，Before、Rear bearing bearing is provided with axially extending bore，Described axially extending bore and spindle hole are concentric，Described main shaft is threaded onto in spindle hole，Front-end of spindle is supported by fore bearing and is installed on the axially extending bore of fore bearing bearing，Fore bearing front end is provided with forward flange，Forward flange front end is provided with drive end bearing bracket，Fore bearing rear end is provided with front spacer，Forward flange is fixed on described fore bearing bearing by screw，Front spacer is fixed on described main shaft，By arranging forward flange and front spacer，Fore bearing is axially positioned，Described rear-end of spindle is supported by rear bearing and is installed on the axially extending bore of rear bearing bearing，Rear bearing front-end and back-end are respectively arranged with rear spacer and rear flange，Rear spacer is fixed on described main shaft，Rear flange is fixed on described rear bearing bearing by screw，Rear flange rear end is provided with rear end cap，By arranging rear spacer and rear flange，Rear bearing is axially positioned；Sealing shroud it is provided with between main shaft and drive end bearing bracket, gas-tpe fitting, main spindle box body, fore bearing bearing, forward flange, drive end bearing bracket, sealing shroud are both provided with pore, jointly compose in series a spindle blow pipeline, can be blown off cuttings liquid and metallic dust, effectively stops cuttings liquid and metallic dust enters inside electro spindle；Described angle encoder apparatus is installed on rear-end of spindle by adapter sleeve, including encoder support set, encoder grating drum, encoder count head and encoder protective cover, encoder support set is fixedly installed in adapter sleeve front end, encoder grating drum is fixedly installed on encoder support set, encoder count head is fixedly installed on described rear end cap, it is provided with adjusting pad between described encoder count head and rear end cap, it is used for adjusting the gap between encoder count head and rear end cap, and encoder count head, adjusting pad, rear end cap is provided with 4 alignment pins, it is used for realizing the location of encoder count head, encoder protective cover is fixedly installed on rear bearing bearing, angle encoder apparatus is carried out waterproof, proofing dust and protecting；Described spindle drive includes rotor, rotor adapter sleeve, stator and stator adapter sleeve, rotor fixed cover is loaded on rotor adapter sleeve, rotor adapter sleeve fixed cover is loaded on main shaft, rotor and main shaft are interfixed, rotating with main shaft, described stator is fixing is flush-mounted in stator adapter sleeve, and stator adapter sleeve is fixedly installed in described spindle hole internal chamber wall, stator and main spindle box body are interfixed, and stator is coated at rotor and phase mutual gap between the two；Brake gear includes brake disc, brake disc support set, water brake and braking bracket, braking bracket is installed on side, main spindle box body rear end, water brake is installed on braking bracket, and brake disc is set in brake disc support set, and brake disc support set is fixedly installed in described adapter sleeve rear end；nullIt is characterized in that，Described cooling system includes spindle cooling mechanism and bearing cooling mechanism，Spindle cooling mechanism includes main shaft cooling-water duct、Main shaft cooling water inlet、Main shaft coolant outlet and the first sealing mechanism，The spindle collar connected in star that main shaft cooling-water duct is interconnected by several being arranged between described main spindle box body and stator adapter sleeve forms，First sealing mechanism includes two the first sealing rings，It is set with on the periphery at described stator adapter sleeve two ends，And with described spindle hole internal chamber wall closely against，Prevent from cooling down water to enter in main shaft，Effectively play sealing function，Spindle collar connected in star along the axial arranged distribution of main shaft between said two the first sealing ring，Main shaft cooling water inlet is divided on the main spindle box body that stator front end is corresponding with back-end location with main shaft coolant outlet，And spindle collar connected in star with main shaft cooling-water duct two ends is connected respectively，Cooling water flows to from main shaft cooling water inlet，By each spindle collar connected in star of main shaft cooling-water duct，And flow out from main shaft coolant outlet，Play the cooling thermolysis to main shaft；nullDescribed bearing cooling mechanism includes bearing cooling water passage、Bearing cooling water import、Bearing cooling water outlet and the second sealing mechanism，The bearer ring connected in star that bearing cooling water passage is interconnected by several being arranged between described main spindle box body and fore bearing bearing forms，Second sealing mechanism includes two the second sealing rings，It is set with on the periphery at described fore bearing bearing two ends，And with described spindle hole internal chamber wall closely against，Prevent from cooling down water to enter in bearing，Effectively play sealing function，Bearer ring connected in star along the axial arranged distribution of main shaft between said two the second sealing ring，Bearing cooling water import is divided on the main spindle box body that fore bearing bearing front end is corresponding with back-end location with bearing cooling water outlet，And bearer ring connected in star with bearing cooling water passage two ends is connected respectively，Cooling water flows to from bearing cooling water import，By each bearer ring connected in star of bearing cooling water passage，And flow out from bearing cooling water outlet，Play the cooling thermolysis of the bearing to front-end of spindle.
As technique scheme being improved and supplementing, present invention additionally comprises techniques below feature.
Gap is all left, it is simple to the smooth smoothness of cooling water between described adjacent two spindle collar connected in stars and between adjacent two bearer ring connected in stars.
It is respectively arranged with front labyrinth bush and rear labyrinth bush, front labyrinth bush and rear labyrinth bush between described forward flange and rear flange and main shaft to fix with described main shaft respectively, forms labyrinth structure with forward flange and rear flange respectively, bearing is played a protective role.
Described fore bearing includes axial compact arranged angular contact ball bearing and Biserial cylindrical roller bearing, the most forward outer ring, Biserial cylindrical roller bearing front end is resisted against on forward flange, inner ring is resisted against on front labyrinth bush, angular contact ball bearing quantity is two and back-to-back is installed on described Biserial cylindrical roller bearing rear end, the outer ring, angular contact ball bearing rear end of rearmost end is resisted against in the step end face shoulder of fore bearing bearing, inner ring is resisted against on front spacer, and Biserial cylindrical roller bearing and angular contact ball bearing are carried out axial limiting.
Described rear bearing is single row roller bearing, it is provided with step end face shoulder on described rear bearing bearing, outer ring, single row roller bearing front end is resisted against in described step end face shoulder, inner ring is resisted against on described rear spacer, outer ring, single row roller bearing rear end is resisted against described rear flange, inner ring is resisted against on described rear labyrinth bush, and single row roller bearing is carried out axial limiting.
When the present invention works: stator adapter sleeve is fixed on main spindle box body and maintains static, driving rotor by stator input currents is produced electromagnetic field, rotor drives main shaft to rotate, it is achieved input the power of main shaft, now water brake not fuel feeding, brake disc and water brake have gap；When needs main shaft stops operating, stopping stator input currents, to water brake fuel feeding, water brake shares brake disc, and brake disc stops operating, and main shaft also stops operating；When needs lathe spindle Position servo control, unspecified angle can be realized by angle encoder apparatus to be accurately positioned, after electric main shaft device normally works, cooling water enters from main shaft cooling water inlet, flowed out from main shaft coolant outlet by spindle collar connected in star, enter from bearing cooling water import at bearing portions cooling water, flowed out from bearing cooling water outlet by bearer ring connected in star, cooling water is at main spindle box body internal circulation flow, play the cooling effect to electro spindle, make electric main shaft device be maintained within the scope of normal temperature.
Use the present invention can reach following beneficial effect: directly to configure cooling water circulation cooling system in fine turning lathe main spindle box body, main shaft and bearing are carried out internal cooling, effectively play the thermolysis of main shaft, radiation stability improves, and save the space installing blower fan on main spindle box body, make electro spindle more simple and compact for structure, simultaneously by eliminating the power drive mechanism of traditional machine tool main shaft, achieve simple and compact for structure, high speed high pulling torque, the rotation produced because of inertia of main shaft is controlled by brake gear, improve the accuracy of processing, being accurately positioned of unspecified angle is realized by angle encoder apparatus.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the F-F sectional view of Fig. 1.
Fig. 4 is the partial view of the B-B section view of Fig. 1.
Fig. 5 is the partial view of the C-C section view of Fig. 1.
Fig. 6 is the partial view of the D-D section view of Fig. 1.
Fig. 7 is the partial view of the E-E section view of Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.
nullAs shown in Fig. 1 ~ Fig. 7，The present invention includes main spindle box body 4、Fore bearing bearing 18、Rear bearing bearing 21、Hollow main shaft 15、Spindle drive、Angle encoder apparatus、Brake gear and cooling system，Spindle hole and gas-tpe fitting 34 it is provided with on main spindle box body 4，Fore bearing bearing 18、Before rear bearing bearing 21 is respectively arranged in described spindle hole、Rear two ends，Fore bearing bearing 18 and rear bearing bearing 21 are provided with axially extending bore，Described axially extending bore and spindle hole are concentric，Main shaft 15 is threaded onto in spindle hole，Main shaft 15 front end is supported by fore bearing and is installed on the axially extending bore of fore bearing bearing 18，Fore bearing includes axial compact arranged angular contact ball bearing 12 and Biserial cylindrical roller bearing 13，The most forward for Biserial cylindrical roller bearing 13，Angular contact ball bearing 12 quantity is two and back-to-back is installed on Biserial cylindrical roller bearing 13 rear end，Biserial cylindrical roller bearing 13 front end is provided with forward flange 17，Forward flange 17 is fixed on fore bearing bearing 18 by screw，Front labyrinth bush 16 it is provided with between forward flange 17 and main shaft 15，Front labyrinth bush 16 is fixed with main shaft 15，Labyrinth structure is formed with forward flange 17，Bearing is played a protective role，Rear end is provided with front spacer 11，Front spacer 11 is fixed on main shaft 15，Outer ring, Biserial cylindrical roller bearing 13 front end is resisted against on forward flange 17，Inner ring is resisted against on front labyrinth bush 16，Angular contact ball bearing 12 outer ring of rearmost end is resisted against in the step end face shoulder of fore bearing bearing 18，Inner ring is resisted against on front spacer 11，Biserial cylindrical roller bearing 13 and angular contact ball bearing 12 are carried out axial limiting，Main shaft 15 rear end is supported by rear bearing and is installed on the axially extending bore of rear bearing bearing 21，Rear bearing is single row roller bearing 5，Single row roller bearing 5 front end is provided with rear spacer 6，Rear spacer 6 is fixed on main shaft 15，Step end face shoulder it is provided with on rear bearing bearing 21，Single row roller bearing 5 rear end is provided with rear flange 22，Rear flange 22 is fixed on rear bearing bearing 21 by screw，Rear flange 22 rear end is provided with rear end cap 24，Rear end cap 24 is connected by screw is fixing with rear flange 22，Rear labyrinth bush 23 it is provided with between rear flange 22 and main shaft 15，Rear labyrinth bush 23 is fixed with main shaft 15，Labyrinth structure is formed with rear flange 22，Single row roller bearing 5 is played a protective role，Outer ring, single row roller bearing 5 front end is resisted against in described step end face shoulder，Inner ring is resisted against on rear spacer 6，Outer ring, single row roller bearing 5 rear end is resisted against rear flange 22，Inner ring is resisted against on rear labyrinth bush 23，Single row roller bearing 5 is carried out axial limiting；It is provided with sealing shroud between main shaft 15 and drive end bearing bracket 14, gas-tpe fitting 34, main spindle box body 4, fore bearing bearing 18, forward flange 17, drive end bearing bracket 14, sealing shroud are both provided with pore, jointly compose in series a spindle blow pipeline, can be blown off cuttings liquid and metallic dust, effectively stops cuttings liquid and metallic dust enters electro spindle 15 inside；nullDescribed angle encoder apparatus is installed on main shaft 15 rear end by adapter sleeve 29，Including encoder support set 30、Encoder grating drum 28、Encoder count head 27 and encoder protective cover 31，Encoder support set 30 is fixedly installed in adapter sleeve 29 front end，Encoder grating drum 28 is fixedly installed on encoder support set 30，Encoder count head 27 is fixedly installed on rear end cap 24，Adjusting pad 25 it is provided with between encoder count head 27 and rear end cap 24，It is used for adjusting the gap between encoder count head 27 and rear end cap 24，And encoder count head 27、Adjusting pad 25、Rear end cap 24 is provided with 4 alignment pins 26，It is used for realizing the location of encoder count head 27，Encoder protective cover 31 is fixedly installed on rear bearing bearing 21，Angle encoder apparatus is carried out waterproof、Proofing dust and protecting；Described spindle drive includes rotor 9, rotor adapter sleeve 20, stator 8 and stator adapter sleeve 10, rotor 9 fixed cover is loaded on rotor adapter sleeve 20, rotor adapter sleeve 20 fixed cover is loaded on main shaft 15, rotor 9 and main shaft 15 are interfixed, rotating with main shaft 15, stator 8 is fixing is flush-mounted in stator adapter sleeve 10, and stator adapter sleeve 10 is fixedly installed in described spindle hole internal chamber wall, stator 8 and main spindle box body 4 are interfixed, and stator 8 is coated at rotor 9 and phase mutual gap between the two；Brake gear includes brake disc 2, brake disc support set 3, water brake 1 and braking bracket, braking bracket is installed on side, main spindle box body 4 rear end, water brake 1 is installed on braking bracket, and brake disc 2 is set in brake disc support set 3, and brake disc support set 3 is fixedly installed in adapter sleeve 29 rear end；nullDescribed cooling system includes spindle cooling mechanism and bearing cooling mechanism，Spindle cooling mechanism includes main shaft cooling-water duct、Main shaft cooling water inlet 37、Main shaft coolant outlet 38 and the first sealing mechanism，Main shaft cooling-water duct is made up of six the spindle collar connected in stars 7 being arranged between main spindle box body 4 and stator adapter sleeve 10，Spindle collar connected in star 7 keeps at a certain distance away and axially arranges，Spindle collar connected in star 7 is arranged on main spindle box body 4，It is provided with gap between each adjacent two spindle collar connected in stars 7，First sealing mechanism includes two the first sealing rings 33，It is set with on the periphery at stator adapter sleeve 10 two ends，And with described spindle hole internal chamber wall closely against，Prevent from cooling down water to enter in main shaft 15，Effectively play sealing function，Spindle collar connected in star 7 axially keeps at a certain distance away arranged distribution between said two the first sealing ring 33 along main shaft，Main shaft cooling water inlet 37 is divided on the main spindle box body 4 that stator 8 front end is corresponding with back-end location with main shaft coolant outlet 38，And spindle collar connected in star 7 with main shaft cooling-water duct two ends is connected respectively，Cooling water flows to from main shaft cooling water inlet 37，By each spindle collar connected in star 7 of main shaft cooling-water duct，And flow out from main shaft coolant outlet 38，Play the cooling thermolysis to main shaft 15；nullDescribed bearing cooling mechanism includes bearing cooling water passage、Bearing cooling water import 35、Bearing cooling water outlet 36 and the second sealing mechanism，The bearer ring connected in star 19 that bearing cooling water passage is interconnected by two be arranged between main spindle box body 4 and fore bearing bearing 18 forms，Bearer ring connected in star 19 keeps at a certain distance away and axially arranges，Bearer ring connected in star 19 is arranged on fore bearing bearing 18，It is provided with gap between each adjacent two bearer ring connected in stars 19，Second sealing mechanism includes two the second sealing rings 32，It is set with on the periphery at fore bearing bearing 18 two ends，And with described spindle hole internal chamber wall closely against，Prevent from cooling down water to enter in bearing，Effectively play sealing function，Bearer ring connected in star 19 axially keeps at a certain distance away arranged distribution between said two the second sealing ring 32 along main shaft，Bearing cooling water import 35 is divided on the main spindle box body 4 that fore bearing bearing 18 front end is corresponding with back-end location with bearing cooling water outlet 36，And bearer ring connected in star 19 with bearing cooling water passage two ends is connected respectively，Cooling water flows to from bearing cooling water import 35，By each bearer ring connected in star 19 of bearing cooling water passage，And from bearing cooling water outlet 36 outflow，Play the cooling thermolysis of the bearing to main shaft 15 front end.
When the present invention works: stator adapter sleeve 10 is fixed on main spindle box body 4 and maintains static, rotor 9 is driven by stator 8 input current is produced electromagnetic field, rotor 9 drives main shaft 15 to rotate, realize the power to main shaft 15 to input, now water brake 1 not fuel feeding, brake disc 2 and water brake 1 have gap；When needs main shaft 15 stops operating, stopping stator 8 input current, to water brake 1 fuel feeding, water brake 1 shares brake disc 2, and brake disc 2 stops operating, and main shaft 15 also stops operating；When needs lathe spindle Position servo control, unspecified angle can be realized by angle encoder apparatus to be accurately positioned, after electric main shaft device normally works, cooling water enters from main shaft cooling water inlet 37, flowed out from main shaft coolant outlet 38 by spindle collar connected in star 7, enter from bearing cooling water import 35 at bearing portions cooling water, by bearer ring connected in star 19 from bearing cooling water outlet 36 outflow, cooling water is at main spindle box body 4 internal circulation flow, play the cooling effect to main shaft 15 and bearing, make electric main shaft device be maintained within the scope of normal temperature.
Claims (5)
- null1. numerically controlled lathe double-channel water cooling electro spindle，Including main spindle box body (4)、Fore bearing bearing (18)、Rear bearing bearing (21)、Hollow main shaft (15)、Spindle drive、Angle encoder apparatus、Brake gear and cooling system，Spindle hole and gas-tpe fitting (34) it is provided with on described main spindle box body (4)，Fore bearing bearing (18)、Before rear bearing bearing (21) is respectively arranged in described spindle hole、Rear two ends，Fore bearing bearing (18) and rear bearing bearing (21) are provided with axially extending bore，Described axially extending bore and spindle hole are concentric，Main shaft (15) is threaded onto in spindle hole，Main shaft (15) front end is supported by fore bearing and is installed on the axially extending bore of fore bearing bearing (18)，Fore bearing front end is provided with forward flange (17)，Forward flange (17) front end is provided with drive end bearing bracket (14)，Fore bearing rear end is provided with front spacer (11)，Forward flange (17) is fixed on fore bearing bearing (18) by screw，Front spacer (11) is fixed on main shaft (15)，Main shaft (15) rear end is supported by rear bearing and is installed on the axially extending bore of rear bearing bearing (21)，Rear bearing front-end and back-end are respectively arranged with rear spacer (6) and rear flange (22)，Rear spacer (6) is fixed on main shaft (15)，Rear flange (22) is fixed on rear bearing bearing (21) by screw，Rear flange (22) rear end is provided with rear end cap (24)；It is provided with sealing shroud between main shaft (15) and drive end bearing bracket (14), gas-tpe fitting (34), main spindle box body (4), fore bearing bearing (18), forward flange (17), drive end bearing bracket (14), sealing shroud are both provided with pore, jointly compose in series a spindle blow pipeline；nullDescribed angle encoder apparatus is installed on main shaft (15) rear end by adapter sleeve (29)，Including encoder support set (30)、Encoder grating drum (28)、Encoder count head (27) and encoder protective cover (31)，Encoder support set (30) is fixedly installed in adapter sleeve (29) front end，Encoder grating drum (28) is fixedly installed on encoder support set (30)，Encoder count head (27) is fixedly installed on rear end cap (24)，Adjusting pad (25) it is provided with between encoder count head (27) and rear end cap (24)，It is used for adjusting the gap between encoder count head (27) and rear end cap (24)，And encoder count head (27)、Adjusting pad (25)、Rear end cap (24) is provided with 4 alignment pins (26)，It is used for realizing the location of encoder count head (27)，Encoder protective cover (31) is fixedly installed on rear bearing bearing (21)；Described spindle drive includes rotor (9), rotor adapter sleeve (20), stator (8) and stator adapter sleeve (10), rotor (9) fixed cover is loaded on rotor adapter sleeve (20), rotor adapter sleeve (20) fixed cover is loaded on main shaft (15), rotor (9) and main shaft (15) are interfixed, stator (8) is fixing is flush-mounted in stator adapter sleeve (10), stator adapter sleeve (10) is fixedly installed in described spindle hole internal chamber wall, stator (8) and main spindle box body (4) are interfixed, stator (8) is coated at rotor (9) and phase mutual gap between the two；Brake gear includes brake disc (2), brake disc support set (3), water brake (1) and braking bracket, braking bracket is installed on main spindle box body (4) side, rear end, water brake (1) is installed on braking bracket, brake disc (2) is set in brake disc support set (3), and brake disc support set (3) is fixedly installed in adapter sleeve (29) rear end；nullIt is characterized in that: described cooling system includes spindle cooling mechanism and bearing cooling mechanism，Spindle cooling mechanism includes main shaft cooling-water duct、Main shaft cooling water inlet (37)、Main shaft coolant outlet (38) and the first sealing mechanism，The spindle collar connected in star (7) that main shaft cooling-water duct is interconnected by several being arranged between main spindle box body (4) and stator adapter sleeve (10) forms，First sealing mechanism includes two the first sealing rings (33)，It is set with on the periphery at stator adapter sleeve (10) two ends，And with described spindle hole internal chamber wall closely against，Spindle collar connected in star (7) along the axial arranged distribution of main shaft between said two the first sealing ring (33)，Main shaft cooling water inlet (37) is divided on the main spindle box body (4) that stator (8) front end is corresponding with back-end location with main shaft coolant outlet (38)，And be connected with the spindle collar connected in star (7) at main shaft cooling-water duct two ends respectively；nullDescribed bearing cooling mechanism includes bearing cooling water passage、Bearing cooling water import (35)、Bearing cooling water outlet (36) and the second sealing mechanism，The bearer ring connected in star (19) that bearing cooling water passage is interconnected by several being arranged between main spindle box body (4) and fore bearing bearing (18) forms，Second sealing mechanism includes two the second sealing rings (32)，It is set with on the periphery at fore bearing bearing (18) two ends，And with described spindle hole internal chamber wall closely against，Bearer ring connected in star (19) along the axial arranged distribution of main shaft between said two the second sealing ring (32)，Bearing cooling water import (35) is divided on the main spindle box body (4) that fore bearing bearing (18) front end is corresponding with back-end location with bearing cooling water outlet (36)，And be connected with the bearer ring connected in star (19) at bearing cooling water passage two ends respectively.
- Numerically controlled lathe double-channel water cooling electro spindle the most according to claim 1, it is characterised in that: all leave gap between described adjacent two spindle collar connected in stars (7) and between adjacent two bearer ring connected in stars (19).
- Numerically controlled lathe double-channel water cooling electro spindle the most according to claim 2, it is characterized in that: between described forward flange (17) and rear flange (22) and main shaft (15), be respectively arranged with front labyrinth bush (16) and rear labyrinth bush (23), front labyrinth bush (16) and rear labyrinth bush (23) are fixed with main shaft (15) respectively, form labyrinth structure with forward flange (17) and rear flange (22) respectively.
- Numerically controlled lathe double-channel water cooling electro spindle the most according to claim 3, it is characterized in that: described fore bearing includes axial compact arranged angular contact ball bearing (12) and Biserial cylindrical roller bearing (13), the most forward double-row cylindrical roller front end bearing outer ring is resisted against on forward flange (17), inner ring is resisted against on front labyrinth bush (16), angular contact ball bearing (12) quantity is two and back-to-back is installed on Biserial cylindrical roller bearing (13) rear end, angular contact ball bearing (12) outer ring, rear end of rearmost end is resisted against in the step end face shoulder of fore bearing bearing (18), inner ring is resisted against on front spacer (11).
- Numerically controlled lathe double-channel water cooling electro spindle the most according to claim 4, it is characterized in that: described rear bearing is single row roller bearing (5), rear bearing bearing is provided with step end face shoulder on (21), single row roller bearing (5) outer ring, front end is resisted against in described step end face shoulder, inner ring is resisted against on rear spacer (6), single row roller bearing (5) outer ring, rear end is resisted against rear flange (22), and inner ring is resisted against on rear labyrinth bush (23).
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| CN201310421238.7A CN103567468B (en) | 2013-09-16 | 2013-09-16 | Numerically controlled lathe double-channel water cooling electro spindle |
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| CN201310421238.7A CN103567468B (en) | 2013-09-16 | 2013-09-16 | Numerically controlled lathe double-channel water cooling electro spindle |
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| CN103567468B true CN103567468B (en) | 2016-08-24 |
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| EP0860231A1 (en) * | 1997-02-21 | 1998-08-26 | Gat Gesellschaft für Antriebstechnik mbH | Mixing fluids in rotating machine parts, method and device therefor |
| CN201023134Y (en) * | 2007-03-16 | 2008-02-20 | 台湾丽伟电脑机械股份有限公司 | Lathe spindle device with center water outlet |
| CN201070725Y (en) * | 2007-08-10 | 2008-06-11 | 宁波市北仑耀发机械设备有限公司 | Water flushing and cooling structure of principal axis center |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3624413B2 (en) * | 1997-02-11 | 2005-03-02 | 豊和工業株式会社 | Rotating shaft structure |
| JP4090403B2 (en) * | 2003-07-25 | 2008-05-28 | 津根精機株式会社 | Machine tool with cooling means for cutting tools |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0860231A1 (en) * | 1997-02-21 | 1998-08-26 | Gat Gesellschaft für Antriebstechnik mbH | Mixing fluids in rotating machine parts, method and device therefor |
| CN201023134Y (en) * | 2007-03-16 | 2008-02-20 | 台湾丽伟电脑机械股份有限公司 | Lathe spindle device with center water outlet |
| CN201070725Y (en) * | 2007-08-10 | 2008-06-11 | 宁波市北仑耀发机械设备有限公司 | Water flushing and cooling structure of principal axis center |
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