CN202219328U - Central water outlet and automatic tool releasing device for numerical control gantry involute spline type spindle - Google Patents
Central water outlet and automatic tool releasing device for numerical control gantry involute spline type spindle Download PDFInfo
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- CN202219328U CN202219328U CN2011202693389U CN201120269338U CN202219328U CN 202219328 U CN202219328 U CN 202219328U CN 2011202693389 U CN2011202693389 U CN 2011202693389U CN 201120269338 U CN201120269338 U CN 201120269338U CN 202219328 U CN202219328 U CN 202219328U
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- main shaft
- water outlet
- ram
- central
- involute spline
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- 238000003754 machining Methods 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
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- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of gantry machining centers, in particular to a central water outlet and automatic tool releasing device for a numerical control gantry involute spline type spindle, which comprises a ram, a power output shaft and the spindle, wherein the ram is provided with a mounting cavity, the power output shaft is positioned in the mounting cavity of the ram and provided with a central through hole, the spindle is positioned in the mounting cavity of the ram and provided with a central through hole, two ends of the spindle are arranged in the ram through steady bearings, and the power output shaft is connected with the spindle. The two central through holes are communicated with each other, a cooling sleeve is arranged between the spindle and the ram, the outer wall of the cooling sleeve is provided with a spiral channel, a liquid inlet and a liquid outlet are arranged at two ends of the spiral channel, and an automatic tool releasing mechanism is further arranged in the ram. The central water outlet and automatic tool releasing device meets the requirements of the spindle on sealing and maintenance of cooling liquid, a spindle flushing structure is reasonable in application, machining efficiency is improved, and the service lives of a tool, the spindle and the steady bearings are prolonged.
Description
Technical field
The utility model relates to the gantry machining center technical field, is specifically related to a kind of center water outlet and automatic device for loosing knife of numerical control gantry involute spline type main shaft.
Background technology
With the fast development of metal cutting tool technology, require to have high performance Digit Control Machine Tool, that Digit Control Machine Tool requires is efficient, high accuracy, high reliability.
The High-speed Machining Technology of high performance Digit Control Machine Tool, cutter; Require main axle structure and the spindle technology of Digit Control Machine Tool to adapt, the high-speed drilling cutter needs the center cutter water outlet, adds to guarantee boring that the cooling in man-hour is abundant, chip removal is unobstructed; Reduce the heating wearing and tearing of cutter, reduce workpiece deformation; During main shaft rigidity merit silk, require the main transmission gap little, driving torque is big.Yet at present a lot of machine tool chief axis drive technologies, center water outlet mode and unreasonable.
The numerical control gantry machine tool of existing general transmitting large torque, gear and the transmission of square type spline, no main shaft center water outlet structure are mostly adopted in main transmission; Owing to add that original main shaft indoor design space is limited, and sealing property is not good, center water outlet system that can't reliable installation; And can only select tape cooling fluid external-change-internal handle of a knife system; Though can solve the matter of great urgency, can't fundamentally break away from dependence to import equipment, increase and produce and maintenance cost.
Summary of the invention
To above-mentioned technical problem, the utility model provides a kind of center water outlet and automatic device for loosing knife of numerical control gantry involute spline type main shaft, and it has rational center water outlet structure, good cooling results, and automatic loose knife structure, long service life, and cost is low.
The technical scheme that realizes the utility model is following:
The center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft; Comprise ram, be positioned at the ram installation cavity and offer the power output shaft of central through hole, and be positioned at the ram installation cavity and offer the main shaft of central through hole that the main shaft both ends are arranged in the ram through spring bearing with installation cavity; Said power output shaft is connected with main shaft; Its two central through holes connect, and between main shaft and ram, are provided with coolant jacket, and the outer wall of coolant jacket offers helical duct; The two ends of helical duct are fluid inlet, the liquid outlet that is used to cool off the oil cooling machine of main shaft bearing, in ram, also are provided with automatic cutter-removing mechanism.
The spring bearing of said main shaft one end be a pair of back-to-back setting angular contact ball bearing, the other end be two pairs of angular contact ball bearings that series connection is provided with; Can bear more high-intensity axial force; Have high accuracy, high capacity; Bear the cutting of big power and high pulling torque, also have very high main shaft precision and long service life simultaneously.Between main shaft two ends and coolant jacket, be provided with labyrinth seal, guarantee that sealing prolongs the service life of bearing.
Between power output shaft and main shaft, be connected with jackshaft and carry out transition, the two ends of jackshaft adopt the involute spline cover to be connected with power output shaft, main shaft respectively, and the involute drive gap is little, and precision is high, and it is big to transmit moment of torsion.
The involute spline of said connection jackshaft, power output shaft puts and offers a plurality of locating holes, and a plurality of locating holes are distributed on involute spline and put, and on power output shaft, offers and the corresponding locating slot of locating hole.In locating hole, insert alignment pin; And be stuck in the corresponding locating slot, guarantee the perpendicularity of jackshaft, meet the process Installation requirement; Jackshaft is fixed on the power output shaft; The weight of jackshaft is born by power output shaft, does not bear the weight of jackshaft on the main shaft, makes it transmit the moment of torsion of steady and smooth.
Overlap an end at the involute spline that connects main shaft and jackshaft and be provided with elastic locating sleeve.When main shaft rotated at a high speed, elastic locating sleeve played the assist location guide effect, eliminated the gap that involute spline cooperates.
The actual speed of main shaft, by the encoder belt wheel that is installed in power output shaft upper end, detect with, the encoder belt wheel (transmission in 1: 1) and the encoder that are installed in the encoder lower end synchronously, when guaranteeing main shaft rigidity merit silk, the speed of mainshaft and the feeding of Z axle are synchronous.
Said automatic cutter-removing mechanism comprises and is arranged on the pull bar that has central through hole in the alignment of shafts through hole, is arranged on the pusher, the handle of a knife claw that in the ram installation cavity pull bar are promoted; And be fixedly connected on the blind rivet that pull bar one end has central through hole; The central through hole of said pull bar is connected with the central through hole of power output shaft; Be set with spring on the pull bar, the end of pull bar withstands on the handle of a knife claw.The elastic force pushing drawing rod that pusher can overcome spring unclamps the handle of a knife claw, accomplishes loose cutter action, and when pusher was regained, spring reset drove claw and resets, the tension handle of a knife, and the broaching tool action is accomplished.
The central through hole of said pull bar is connected with the central through hole of power output shaft through the center water outlet extension bar; One end of center water outlet extension bar is positioned at the centre bore of power output shaft, the central through hole that the other end is positioned at main shaft; Be respectively arranged with multi-sealed in the end of center water outlet extension bar, pull bar; Guarantee that cooling fluid is all got in the central through hole of pull bar by the center water outlet extension bar, can not leak into other places.
Be fixedly connected with drag link sleeve on the said pull bar, be set with loose cutter piece on the drag link sleeve, said pusher is for promoting oil cylinder, and the piston rod that promotes oil cylinder promotes loose cutter piece motion.The piston rod that promotes oil cylinder promotes loose cutter piece, and drives drag link sleeve and pull bar moves together.
Be provided with insufflation channel in the said ram, the end of passage is positioned at the cutter installation place.
Said spring is a disk spring, and rigidity is big, and the buffering vibration absorption ability is strong, can bear big load with small deformation.
Adopted such scheme, the heat that main shaft runs up and produces adds cold oil through oily cooler heat is taken away in helical duct, thereby prolongs the service life of spring bearing and main shaft; In addition through in the central through hole of power output shaft, importing cooling fluid; Cooling fluid is passed through the central through hole of jackshaft, center water outlet extension bar, pull bar successively; Get in the cutter cooling holes through blind rivet again cutter and main shaft are cooled off, clean, guarantee the machined surface quality and the precision of workpiece; Piston rod through oil cylinder promotes loose cutter piece, and drives drag link sleeve and pull bar moves together, and pull bar promotes claw and unclamps, and accomplishes loose cutter.The utility model satisfies main shaft to the sealing of cooling fluid and the requirement of maintenance, and main shaft flushing structure reasonable application has improved working (machining) efficiency, has prolonged the service life of cutter, main shaft and spring bearing.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure, 1 is ram, and 2 is power output shaft, and 3 is swivel coupling, and 4 is the first involute spline cover, and 5 is jackshaft; 6 is locating hole, and 7 is locating slot, and 8 is alignment pin, and 9 is the second involute spline cover, and 10 is main shaft, and 11 is elastic locating sleeve; 12 is coolant jacket, and 13 is helical duct, and 14 is angular contact ball bearing, and 15 is angular contact ball bearing, and 16 is angular contact ball bearing, and 17 is labyrinth seal; 18 are the maintenance window, and 19 is pull bar, and 20 is oil cylinder, and 201 is the piston of oil cylinder, and 21 is blind rivet, and 22 is disk spring; 23 is the center water outlet extension bar, and 24 is drag link sleeve, and 25 is loose cutter piece, and 26 is insufflation channel, and 27 is seal; 28 is main-gear box, and 29 is the encoder belt wheel, and 291 is the encoder belt wheel, and 30 is encoder, and 31 is the handle of a knife claw.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further specified.
Referring to shown in Figure 1; The center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft; Comprise ram 1, be positioned at the ram installation cavity and offer the power output shaft 2 of central through hole with installation cavity; Ram 1 is full bag square ram structure, is the radial reinforcement of M shape in it, and it has extremely strong rigidity; The left end of power output shaft 2 connects swivel coupling 3, and swivel coupling inside is tight high rigidity shaft bearing apparatus, and it is friction when rotating for a long time with main shaft; The right-hand member of power output shaft 2 is connected with jackshaft 5 through first involute spline cover 4; Offer four locating holes 6 on first involute spline cover 4, on power output shaft 2, offer and corresponding four locating slots 7 of locating hole, in locating hole, insert alignment pin 8; And be stuck in the corresponding locating slot; Guarantee the perpendicularity of jackshaft, meet the process Installation requirement, make it transmit the moment of torsion of steady and smooth; The right-hand member of jackshaft 5 is connected the left end of main shaft 10 through second involute spline cover 9; Right-hand member at second involute spline cover 9 is fixedly connected elastic locating sleeve 11; It mainly acts on: when main shaft rotates at a high speed; Play the assist location guide effect, eliminate the gap that involute spline cooperates, guarantee the stable of transmission.Jackshaft 5 two ends are the involute spline axle journal; Overlap 9 matching and fixing respectively at first involute spline cover, 4, second involute spline; Following in order to guarantee its method of sealing: as to utilize principle of expanding with heat and contracting with cold; Earlier the journal size processing of jackshaft is surpassed the installation dimension 0.15～0.18mm of the first involute spline cover, second involute spline cover, and it is carried out freezing under the temperature that is lower than subzero 45 degree, simultaneously the first involute spline cover, the second involute spline cover are heated; Again the two ends of jackshaft are inserted respectively in the first involute spline cover, second involute spline cover, be cooled at normal temperature and accomplish installation.
Be installed in the coolant jacket 12 in the ram 1 and be installed in the main shaft 10 that has central through hole in the coolant jacket 12; Helical duct 13 on the coolant jacket 12; When being installed to coolant jacket in the ram again, in order to guarantee the sealing of helical duct, cylinder iron plug is equipped with abrasive sand the installation inwall in the ram is ground; Guarantee the fit clearance between coolant jacket and the ram inwall, prevent that the cooling fluid in the helical duct from leaking; Cooling fluid is got in the helical duct by inlet A, flow back into refrigerating plant by liquid outlet B again, thereby takes away the heat that spring bearing rotates generation at a high speed; What cooling fluid was not stopped when main axis rotation moves in circles; Temperature to main shaft detects in real time simultaneously, surpasses design temperature, and refrigerating plant is reported to the police; Thereby lathe stops work protection main shaft and spring bearing, with the operating accuracy that guarantees lathe and prolong its service life.
The angular contact ball bearing 14 of the left end of main shaft 10 through a pair of back-to-back setting supports installation, right-hand member supports installation through the angular contact ball bearings 15,16 that two pairs of series connection are provided with; Between main shaft 10 two ends and coolant jacket 12, be provided with labyrinth seal 17.For the ease of detecting, regulate, keeping in repair, on ram, also offer maintenance window 18 simultaneously.
The automatic cutter-removing mechanism that is positioned at ram 1 comprises the pull bar 19 that is arranged on main shaft 10 central through holes and has central through hole, is arranged on oil cylinder 20, handle of a knife claw 31 that the ram installation cavity promotes pull bar; And be fixedly connected on the blind rivet 21 that pull bar 19 1 ends have central through hole; Be set with disk spring 22 on the pull bar 19, the end of pull bar 19 withstands on the handle of a knife claw 31.The central through hole of pull bar 19 is connected through the central through hole of center water outlet extension bar 23 with power output shaft 2; Centre bore, the other end that one end of center water outlet extension bar 23 is positioned at power output shaft 2 is positioned at the central through hole of main shaft 10, is respectively arranged with multi-sealed in the end of center water outlet extension bar 23, pull bar 19.Be fixedly connected with drag link sleeve 24 on the pull bar 19, be fixedly connected with loose cutter piece 25 on the drag link sleeve 24, the piston of oil cylinder 201 promotes loose cutter pieces 25 and drives drag link sleeve 24 and pull bar 19 moves together.Be provided with insufflation channel 26 in the ram, the end of passage is positioned at the cutter installation place, and C blows in insufflation channel by air inlet.
The utility model alignment of shafts water flowing out structure is: get into swivel coupling 3 by import D; Get into the central through hole, jackshaft 5 central through holes, the through hole of center water outlet extension bar 23, the central through hole of pull bar 19 of power output shaft 2 more successively; Get in the cutter cooling holes through blind rivet 21 again cutter and main shaft are cooled off, clean, guarantee the machined surface quality and the precision of workpiece.
Pine broaching tool principle is: in center water outlet simultaneously, also need take into account the main shaft tool changing simultaneously, the pull bar of center water outlet with go out water passage multi-sealed circle sealing arranged, guarantee good seal, do not have and leak.After the oil cylinder oil-feed, promote oil cylinder piston 201, move to right thereby drive loose cutter piece 25, overcome whole group butterfly spring 22 back pushing drawing rods 19, seal 27, handle of a knife claw 31 is unclamped, loose cutter action is accomplished; When the oil cylinder oil return, butterfly spring 22 resets, and drive the handle of a knife claw and reset, the tension handle of a knife, the broaching tool action is accomplished.Main-gear box 28 tops are with a pair of 1: 1 encoder belt wheel 29,291 in addition; Be that system provides reliable feedback signal when the main shaft rigid tapping; Simultaneously, encoder 30 is installed in the power output shaft end, has also solved main shaft and has produced the influence of vibration to code device signal in high-rate cutting.
Claims (10)
1. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft; It is characterized in that: it comprises the ram with installation cavity, the power output shaft that is positioned at the ram installation cavity and offers central through hole, and is positioned at the ram installation cavity and offers the main shaft of central through hole, and the main shaft both ends are arranged in the ram through spring bearing; Said power output shaft is connected with main shaft; Its two central through holes connect, and between main shaft and ram, are provided with coolant jacket, and the outer wall of coolant jacket offers helical duct; The two ends of helical duct are inlet, liquid outlet, in ram, also are provided with automatic cutter-removing mechanism.
2. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 1; It is characterized in that: the spring bearing of said main shaft one end be the angular contact ball bearing of a pair of back-to-back setting, the other end be two pairs of angular contact ball bearings that series connection is provided with, between main shaft two ends and coolant jacket, be provided with labyrinth seal.
3. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 1; It is characterized in that: between power output shaft and main shaft, be connected with jackshaft, the two ends of jackshaft adopt the involute spline cover to be connected with power output shaft, main shaft respectively.
4. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 3; It is characterized in that: the involute spline of said connection jackshaft, power output shaft puts and offers locating hole, on power output shaft, offers and the corresponding locating slot of locating hole.
5. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 3 is characterized in that: overlap an end at the involute spline that connects main shaft and jackshaft and be provided with elastic locating sleeve.
6. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 1; It is characterized in that: said automatic cutter-removing mechanism comprises and is arranged on the pull bar that has central through hole in the alignment of shafts through hole, is arranged on the pusher, the handle of a knife claw that in the ram installation cavity pull bar are promoted; And be fixedly connected on the blind rivet that pull bar one end has central through hole; The central through hole of said pull bar is connected with the central through hole of power output shaft; Be set with spring on the pull bar, the end of pull bar withstands on the handle of a knife claw.
7. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 6; It is characterized in that: the central through hole of said pull bar is connected with the central through hole of power output shaft through the center water outlet extension bar; One end of center water outlet extension bar is positioned at the centre bore of power output shaft, the central through hole that the other end is positioned at main shaft, is respectively arranged with multi-sealed in the end of center water outlet extension bar, pull bar.
8. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 6; It is characterized in that: be fixedly connected with drag link sleeve on the said pull bar; Be set with loose cutter piece on the drag link sleeve; Said pusher is for promoting oil cylinder, and the piston rod that promotes oil cylinder promotes loose cutter piece motion.
9. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 6 is characterized in that: be provided with insufflation channel in the said ram, the end of passage is positioned at the cutter installation place.
10. the center water outlet and the automatic device for loosing knife of numerical control gantry involute spline type main shaft according to claim 6 is characterized in that: said spring is a disk spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202693389U CN202219328U (en) | 2011-07-28 | 2011-07-28 | Central water outlet and automatic tool releasing device for numerical control gantry involute spline type spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202693389U CN202219328U (en) | 2011-07-28 | 2011-07-28 | Central water outlet and automatic tool releasing device for numerical control gantry involute spline type spindle |
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| Publication Number | Publication Date |
|---|---|
| CN202219328U true CN202219328U (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202693389U Expired - Fee Related CN202219328U (en) | 2011-07-28 | 2011-07-28 | Central water outlet and automatic tool releasing device for numerical control gantry involute spline type spindle |
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| Country | Link |
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| CN (1) | CN202219328U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736637A (en) * | 2016-12-13 | 2017-05-31 | 宁波海天精工股份有限公司 | A kind of function switching structure for being applied to main shaft tool changing air blowing and central water outlet |
| WO2019196266A1 (en) * | 2018-04-12 | 2019-10-17 | 深圳市创世纪机械有限公司 | Spindle having integrated center outlet water and cutter loosening, and numerical control machine tool |
| CN115106831A (en) * | 2022-07-26 | 2022-09-27 | 武汉重型机床集团有限公司 | Turning, milling and grinding composite cutter frame |
| CN116944934A (en) * | 2023-09-20 | 2023-10-27 | 雷亿尔精密机械科技(常州)有限公司 | Machine tool square ram main shaft transmission mechanism |
-
2011
- 2011-07-28 CN CN2011202693389U patent/CN202219328U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736637A (en) * | 2016-12-13 | 2017-05-31 | 宁波海天精工股份有限公司 | A kind of function switching structure for being applied to main shaft tool changing air blowing and central water outlet |
| WO2019196266A1 (en) * | 2018-04-12 | 2019-10-17 | 深圳市创世纪机械有限公司 | Spindle having integrated center outlet water and cutter loosening, and numerical control machine tool |
| CN115106831A (en) * | 2022-07-26 | 2022-09-27 | 武汉重型机床集团有限公司 | Turning, milling and grinding composite cutter frame |
| CN116944934A (en) * | 2023-09-20 | 2023-10-27 | 雷亿尔精密机械科技(常州)有限公司 | Machine tool square ram main shaft transmission mechanism |
| CN116944934B (en) * | 2023-09-20 | 2023-11-21 | 雷亿尔精密机械科技(常州)有限公司 | Machine tool square ram main shaft transmission mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20140728 |
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| EXPY | Termination of patent right or utility model |