CN1350899A - Automatic rotating tool carriage for numerally controlled lathe - Google Patents

Automatic rotating tool carriage for numerally controlled lathe Download PDF

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Publication number
CN1350899A
CN1350899A CN 00123169 CN00123169A CN1350899A CN 1350899 A CN1350899 A CN 1350899A CN 00123169 CN00123169 CN 00123169 CN 00123169 A CN00123169 A CN 00123169A CN 1350899 A CN1350899 A CN 1350899A
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CN
China
Prior art keywords
disk
active toothed
toothed disk
alignment pin
controlled lathe
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.)
Granted
Application number
CN 00123169
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Chinese (zh)
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CN1120764C (en
Inventor
胡木
刘戈飞
王瑛
杨佳庆
段恩洪
乔庆元
郑弼诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENYANG MACHINE TOOLS PLANT NO 1
Original Assignee
SHENYANG MACHINE TOOLS PLANT NO 1
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Publication date
Application filed by SHENYANG MACHINE TOOLS PLANT NO 1 filed Critical SHENYANG MACHINE TOOLS PLANT NO 1
Priority to CN 00123169 priority Critical patent/CN1120764C/en
Publication of CN1350899A publication Critical patent/CN1350899A/en
Application granted granted Critical
Publication of CN1120764C publication Critical patent/CN1120764C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

An automatic rotary tool carriage for numerically controlled lathe is composed of motor, Hall element, worm-gear set and leading screw sleeve linked via nut to moving gear engaged with upper and lower gears. The drive disk is in contact with the circumference of drive pin on said moving gear, which is linked to square capstan and permanent magnet via link disk. Its advantages include high locking reliability, sealing and safety.

Description

Automatic rotating tool carriage for numerally controlled lathe
The present invention relates to a kind of parts of numerically controlled lathe, i.e. automatic rotating tool carriage for numerally controlled lathe.
On numerically controlled lathe, knife rest is that a structure is the most complicated, the parts that operating frequency is the highest, it also is a link that easily goes wrong most on the numerically controlled lathe, it indicates the technical merit of numerically controlled lathe to a certain extent, and it is closely related with machining accuracy and production efficiency, has only the repetitive positioning accuracy that improves the numerical control rotary knife rest, the reliability of transposition speed and action, could adapt to high-quality, the requirement that high-frequency is produced, our factory was once trial-produceed first generation automatic rotating tool carriage for numerally successfully, but also there is following point in this knife rest: 1, sometimes cutter platform transposition is anti-stuck by when locking, makes knife rest can not lock 2, the transposition of cutter platform is stuck fall partially after, lathe is proceeded stock removal action, other parts of knife rest and lathe are bumped against, damage 3, the knife rest sealing is bad, knife rest inner inlet and cast iron powder, make knife rest lose positioning accuracy, 4, Hall switch often damages, and has a strong impact on the normal use of knife rest.
The automatic rotating tool carriage for numerally controlled lathe that the purpose of this invention is to provide a kind of reliable lock, good seal, safety, long service life.
The object of the present invention is achieved like this: automatic rotating tool carriage for numerally controlled lathe, include motor, Hall element, worm screw (2), worm gear (3), worm gear is connected with screw mandrel cover (4), screw mandrel cover (4) connects with active toothed disk (8) by nut (10), active toothed disk (8) is with last, lower tooth disk (5) and (6) are meshed, drive plate (11) contacts with trundle (18) cylindrical on being fixed on active toothed disk (8), active toothed disk links to each other with permanent magnet (13) with cubic cutter platform (12) by terminal pad (27), just alignment pin (9) cooperates with the locating slot of first positioning disk (7) down, go up and match with the notch of drive plate (11), just the draw ratio of alignment pin (9) is 3-20: 1, three travellers (26) are connected with disk (24), disk (24) and microswitch (16) pressing, transposition pin center in the active toothed disk is breast thoroughly, is sealed into radial seal between cutter platform and base (1).
Above-mentioned automatic rotating tool carriage for numerally controlled lathe, maximum permissible mismatching amount when the comprehensive idle running of first alignment pin and drive plate and first positioning disk meshes less than fluted disc.
Stuck when transposition of cutter platform and anti-leaning on, mainly be drive plate and first alignment pin, just the fault of positioning disk and active toothed disk causes, specifically: 1, the comprehensive idle running of first alignment pin and drive plate and first positioning disk is excessive, alignment pin and first positioning disk combined and idle running amount t when meshing greater than fluted disc during maximum permissible mismatching amount t3 originally, make active toothed disk and fixed tooth disk generation tooth top bump against phenomenon, cause knife rest fluted disc pair can not correct engagement, dieback, maximum permissible mismatching amount t3 guaranteed not take place the apical tooth stuck phenomenon before the present invention made comprehensive idle running t be far smaller than the fluted disc engagement; 2, the original guiding of alignment pin cylindrical just length is little, after being subjected to the drive plate side force, the spring of alignment pin in active toothed disk do not overcome stuck can not the downslide of frictional force that produces because of rear flank power, the present invention increases by the guiding length that first alignment pin and active toothed disk are cooperatively interacted, strengthen the draw ratio of first alignment pin, can avoid alignment pin stuck in active toothed disk like this.The present invention locks signal sender structure and presses microswitch by three traveller band one disks and carry out, like this knife rest accurately do not fall the situation lower disc of positioning and locking at active toothed disk forever can not be with the microswitch pressing, can not send the locking signal, control system is reported to the police do not carry out next action, avoiding locking originally signal is to be carried out by a Hall switch, traveller by a band permanent magnet is responded to triggering signal with the active toothed disk knee-action, and every each cutter spacing that dallied of cutter platform can both be sent and once locks signal, fall at the cutter platform like this and also can send out the locking signal sometimes after inclined to one side or stuck by mistake, make control system take for knife rest and locked and finish, and carry out next action.The sealing that first generation product cutter platform and base are 1 is former to be designed to axial seal, and the sealing ring size is difficult to control, and the assembly accumulation size Control is easy to generate suction because of difficulty causes knife rest inner vacuum phenomenon; The present invention changes the axial seal of first generation product into radial seal and makes guarantee positiver sealing that on part processing cun the transposition pin centre bore open-work with in the active toothed disk makes the active toothed disk up/down perforation can not form vacuum phenomenon.
Transposition of the present invention in addition accurately and reliably, precision stability can be good, repetitive positioning accuracy height, cutter platform do not have face and lift transposition, have interior refrigerating function.
Be described in detail technical solution of the present invention below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present invention.
Fig. 2 instead leans on schematic diagram for transposition.
Fig. 3 is the apical tooth schematic diagram.
As Fig. 1, automatic rotating tool carriage for numerally controlled lathe includes motor, Hall element, worm screw 2, worm gear 3, worm gear is connected with screw mandrel cover 4, screw mandrel cover 4 connects with active toothed disk 8 by nut 10, active toothed disk 8 is with last, lower tooth disk 5 and 6 is meshed, drive plate 11 contacts with trundle 18 cylindricals on being fixed on active toothed disk 8, active toothed disk links to each other with permanent magnet 13 with cubic cutter platform 12 by terminal pad 27, just alignment pin 9 times cooperates with the first locating slot of positioning disk 7, upward matches with the notch of drive plate 11, and the draw ratio of first alignment pin 9 is 3-20: 1, three travellers 26 are connected with disk 24, transposition pin central bore in the disk 24 and microswitch 16 pressings, active toothed disk, 1 of cutter platform and base be sealed into radial seal, 17 is plug, and 20 is column, 21 is damping column, 22 is that jackscrew 23 is protective cover.
As Fig. 2 and 3, comprehensive idle running amount is t, just alignment pin and drive plate idle running are t2, just alignment pin is t1 with first positioning disk idle running, the maximum permissible mismatching amount is t3 during the fluted disc engagement, maximum permissible mismatching amount t3 when the first alignment pin of automatic rotating tool carriage for numerally controlled lathe that t=t1+t2 is above-mentioned and the comprehensive idle running t of drive plate and first positioning disk mesh less than fluted disc.
After CNC system for lathe is sent knife rest transposition instruction, the knife rest motor is rotated in the forward, driving worm screw 2 rotates, worm screw drives worm gear 3 and rotates and implement reduction of speed, the reduction of speed rear worm wheel drives screw mandrel cover 4 rotation synchronously, screw mandrel cover 4 drives drive plate 11 and rotates synchronously, screw mandrel cover 4 drives the action that active toothed disk 8 is made vertical lifting by nut 10 simultaneously, make knife rest break away from locking state, driving traveller 26 when active toothed disk is done vertical motion rises, drive disk 24 and upwards lift, microswitch 16 is disconnected, send the signal that knife rest has broken away from locking state.
When active toothed disk 8 rises to when breaking away from fully with last fluted disc 6, lower tooth disk 5, drive plate 11 goes to after its transmission lacks face and trundle 18 cylindricals on being fixed on active toothed disk contact, drive active toothed disk and drive plate by trundle, the rotation synchronously of screw mandrel cover, active toothed disk stops vertical motion simultaneously.Active toothed disk drives cubic cutter platform 12 and permanent magnet 13 rotations synchronous with it by terminal pad 27 again, has begun the transposition action of cutter platform.
When the cutter platform begins transposition, just alignment pin 9 is with active toothed disk 8 motions, skid off from the inclined-plane of the locating slot of first positioning disk 7, above first positioning disk, make sliding action, just the top of alignment pin enters into drive plate 11 corresponding notches simultaneously, make its action that rotation can not take place, at this moment knife rest enters into normal transposition action.
When the cutter platform go on permanent magnet 13 and the sender set 15 with corresponding Hall element 14 when relative, Hall element sends a cutter platform to machine tool control system and has forwarded the signal that needs the position to.At this moment control system is sent the knife rest motor is just changeing outage, the instruction that motor begins to reverse, and drive worm screw 2, worm gear 3, screw mandrel cover 4 after the motor counter-rotating, drive plate 11 begins counter-rotating simultaneously, has begun the anti-action of leaning on, being scheduled to locking of knife rest.
After drive plate 11 begins counter-rotating, inclined-plane by its notch, driving just, alignment pin 9 reverses thereupon, just alignment pin drives active toothed disk 8 counter-rotatings again, active toothed disk is again by 12 counter-rotatings of terminal pad 27 drive side's cutter platforms, when alignment pin was inverted to the locating slot of first positioning disk 7 originally, first alignment pin fell into locating slot by the effect of spring, and top and drive plate break away from.
After just alignment pin falls into the locating slot of first positioning disk, lean on the first alignment pin of vertical elevation prevention of locating slot to continue to reverse, thereby pass through active toothed disk 8, terminal pad 27 prevention cutter platforms continuation counter-rotatings, thereby the pre-determined bit of finishing knife rest is moved.
After the knife rest pre-determined bit, screw mandrel cover 4 continues counter-rotating drive nut and active toothed disk 8 moves downward, and finishes fine positioning and knife rest locking action with last fluted disc 6 and lower tooth disk 5 engagements gradually.
In the process that active toothed disk falls to locking, traveller 26 is under the effect of spring, drive disk 24 and fall simultaneously, when knife rest was locked, disk 24 fell simultaneously, when knife rest is locked, disk 24 sends the signal that knife rest has been finished locking with the microswitch pressing to control system, makes control system send the instruction of motor outage, the motor outage, the transposition tool changing action of knife rest is all over.
When the user manipulates cutting fluid, by the cooling water hole on the base 1,, cutting fluid is sent to outlet copper ball 19 in corresponding cutter spacing through the corresponding water hole of cutterhead by the sealing of plunger and sealing gasket, rotation by copper ball is regulated, and cutting fluid is sprayed on assigned address.

Claims (2)

1, a kind of automatic rotating tool carriage for numerally controlled lathe, include motor, Hall element, worm screw (2), worm gear (3), worm gear is connected with screw mandrel cover (4), screw mandrel cover (4) connects with active toothed disk (8) by nut (10), active toothed disk (8) is with last, lower tooth disk (5) and (6) are meshed, drive plate (11) contacts with trundle (18) cylindrical on being fixed on active toothed disk (8), active toothed disk links to each other with permanent magnet (13) with cubic cutter platform (12) by terminal pad (27), just alignment pin (9) cooperates with the locating slot of first positioning disk (7) down, go up and match with the notch of drive plate (11), it is characterized in that just the draw ratio of alignment pin (9) is 3-20: 1, three travellers (26) are connected with disk (24), disk (24) and microswitch (16) pressing, transposition pin central bore in the active toothed disk is sealed into radial seal between cutter platform and base (1).
2, automatic rotating tool carriage for numerally controlled lathe according to claim 1, maximum permissible mismatching amount when it is characterized in that first alignment pin and drive plate and just the comprehensive idle running of positioning disk meshing less than fluted disc.
CN 00123169 2000-10-27 2000-10-27 Automatic rotating tool carriage for numerally controlled lathe Expired - Fee Related CN1120764C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00123169 CN1120764C (en) 2000-10-27 2000-10-27 Automatic rotating tool carriage for numerally controlled lathe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00123169 CN1120764C (en) 2000-10-27 2000-10-27 Automatic rotating tool carriage for numerally controlled lathe

Publications (2)

Publication Number Publication Date
CN1350899A true CN1350899A (en) 2002-05-29
CN1120764C CN1120764C (en) 2003-09-10

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CN 00123169 Expired - Fee Related CN1120764C (en) 2000-10-27 2000-10-27 Automatic rotating tool carriage for numerally controlled lathe

Country Status (1)

Country Link
CN (1) CN1120764C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101765478B (en) * 2007-07-26 2012-06-20 索特精密机械有限公司 Tool revolver unit for a machine tool
CN102513556A (en) * 2011-12-10 2012-06-27 沈阳机床股份有限公司数控刀架分公司 Vertical electric numerical control knife rest
CN104368830A (en) * 2014-04-25 2015-02-25 上海真正数控机床有限公司 Tool rest assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101602113B (en) * 2009-06-26 2013-02-13 杭州长虹机械制造有限公司 Tool turret rotating structure and tool turret rotating method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101765478B (en) * 2007-07-26 2012-06-20 索特精密机械有限公司 Tool revolver unit for a machine tool
CN102513556A (en) * 2011-12-10 2012-06-27 沈阳机床股份有限公司数控刀架分公司 Vertical electric numerical control knife rest
CN102513556B (en) * 2011-12-10 2013-10-09 沈阳机床股份有限公司数控刀架分公司 Vertical electric numerical control knife rest
CN104368830A (en) * 2014-04-25 2015-02-25 上海真正数控机床有限公司 Tool rest assembly

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C06 Publication
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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
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Assignee: Shenyang Machine Tool Co., Ltd.

Assignor: Shenyang Machine Tools Plant No. 1

Contract fulfillment period: 2007.3.1 to 2012.12.31 contract change

Contract record no.: 2009210000123

Denomination of invention: Automatic rotating tool carriage for numerally controlled lathe

Granted publication date: 20030910

License type: Exclusive license

Record date: 2009.4.13

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.3.1 TO 2012.12.31; CHANGE OF CONTRACT

Name of requester: SHENYANG MACHINE TOOL CO., LTD.

Effective date: 20090413