CN102756136B - Spindle box - Google Patents
Spindle box Download PDFInfo
- Publication number
- CN102756136B CN102756136B CN201110104912.XA CN201110104912A CN102756136B CN 102756136 B CN102756136 B CN 102756136B CN 201110104912 A CN201110104912 A CN 201110104912A CN 102756136 B CN102756136 B CN 102756136B
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- fixed
- motor
- spindle
- plate
- main shaft
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Abstract
The invention provides a spindle box. A motor bracket (5) is fixedly mounted on the spindle box (1); a motor plate (18) is fixed on the motor bracket (5); a spindle motor (19) is fixed on the motor plate (18); a spindle (12) is directly connected under the spindle motor (19); by using a locking nut (15), a press cover (14) is fixed on the spindle (12); the press cover (14) is fixed together with a transmission sleeve (11) and a spline transmission sleeve (13) so as to form a shaft coupling; a piston (10) is fixed on the motor plate (18); an oil cylinder body (16) and an end cover (17) form an oil cylinder; a photoelectric signal switch (2) and a photoelectric switch (4) are mounted on the motor bracket (5); a signal rod (3) is mounted on the oil cylinder body (16); a bolt (9) is fixed on the oil cylinder body (16); a bolt (7) is fixed on a plate (6); the plate (6) is fixed on the motor bracket (5); and one end of a spring (8) is on the bolt (7) while the other end of the spring (8) is on the bolt (9). The spindle box provided by the invention has the advantages of good heat stability and good machining accuracy.
Description
Technical field
The invention relates to CNC milling machine, is specifically related to main spindle box.
Background technology
The structure of the spindle box part of CNC milling machine is that spindle motor drives main shaft to rotate by synchronous belt both at home and abroad, and knife striking cylinder is arranged on main shaft top to realize automatic tool changer.
Bel-drivenn advantage is that noise is little, low cost of manufacture, and the cost of changing after damaging is also low, but easily damage, maximum defect is that belt transmission can not provide very large moment of torsion, says exactly and almost can not increase moment of torsion, if need larger moment of torsion, will increase power of motor.
And the spindle box part structural shape of main shaft and spindle motor direct connection is realized automatic tool changer more difficult, design, installation requirement difficulty is higher.
Summary of the invention
The technical problem that the invention will solve is that the Heat stability is good of a kind of main shaft and spindle motor direct connection, the main spindle box of good processing accuracy are provided.
The scenario of the invention:
Spindle motor and main shaft utilize spline joint to carry out transmitting torque, and project organization makes it can move up and down to realize the loose broaching tool function of main shaft.
The technical solution of the invention:
Replace knife striking cylinder, hydraulic control when loose cutter with hydraulic control.Oil cylinder is oil circuit and gas circuit and uses particular design, main shaft knife loosening when oil cylinder oil inlet, and gas circuit ventilates to realize the function of inner hole of spindle inflatable simultaneously.The oil circuit oil return while, cutter and the laminating of handle of a knife tapering face were also locked mutually because the effect of the dish spring force of main shaft inside moves up pull bar, thereby for preventing that oil cylinder is because the gravity of self drives the loose cutter of pull bar downwards, spy arranges support spring.Concrete scheme is as follows:
Main spindle box, is characterized in that, electric machine support 5 is fixedly mounted on main spindle box 1, and motor plate 18 is fixed on electric machine support 5, and spindle motor 19 is fixed on motor plate 18, and 19 times direct connections of spindle motor have main shaft 12; Locking nut 15 is fixed on gland 14 on main shaft 12, and gland 14 is fixed together and forms a shaft coupling with drive sleeve 11 and spline drived cover 13, on spline drived cover 13, has an air admission hole 20; Drive sleeve 11 is connected with spindle motor 19 use keys, spline drived cover 13 and main shaft 12 use spline joints; What shaft coupling can move up and down to realize main shaft on main shaft 12 send broaching tool function transmitting torque; Piston 10 is fixed on motor plate 18, and cylinder body 16 and end cap 17 form an oil cylinder.In oil cylinder, when oil-feed, cylinder body 16 moves down laminating spline drived cover 13 and drives shaft coupling and main shaft 12 to move down, main shaft knife loosening, and air admission hole 20 air inlets on spline drived cover 13 simultaneously, to realize the blowing function of main shaft; Photosignal switch 2 and optoelectronic switch 4 are contained on electric machine support 5, and signal lever 3 is contained on cylinder body 16, and photosignal switch 2 and optoelectronic switch 4 are contained in respectively below and the top of signal lever 3; In the time that oil cylinder moves down, when being arranged on signal lever 3 on cylinder body 16 and encountering photosignal switch 2, send signal, main shaft knife loosening completes.
Screw 9 is fixed on cylinder body 16, and screw 7 is fixed on plate 6, and plate 6 is fixed on electric machine support 5, spring 8 one end on screw 7 one end on screw 9, electric machine support 5 maintains static, thereby gives cylinder body 16 with power upwards, when preventing the rotation of cylinder body main shaft because Action of Gravity Field moves down.
Operation principle: when main shaft stops the rotation, oil-feed in cylinder body 16, oil cylinder moves down laminating spline drived cover 13 and drives shaft coupling to move down, main shaft knife loosening, air admission hole 20 air inlets simultaneously, spindle blow.In the time being arranged on signal lever 3 on cylinder body 16 and encountering photosignal switch 2, send signal, main shaft knife loosening completes.Then carry out tool changing, after tool changing completes, the interior lower partial-air admission of cylinder body 16, main spindle broach, cylinder body 16 moves up.Move down while encountering optoelectronic switch 4 when being arranged on signal lever 3 on cylinder body 16, send signal, main spindle broach completes.Main shaft starts with certain rotating speed rotating machined workpiece.
The advantage of the invention:
Direct connection be main shaft directly with motor coupling, advantage is the rotating speed that can provide higher, because saved transmission, there is no the heating in transmission simultaneously, so Heat stability is good, the while has also been saved the loss of significance in transmission, can reach better machining accuracy.This kind of spindle box part structure of my company's design, realizes automatic tool changer by spindle unit hydraulic control simultaneously.
Accompanying drawing explanation
Accompanying drawing 1: the left TV structure schematic diagram of the invention;
Accompanying drawing 2: the main TV structure schematic diagram of the invention.
The specific embodiment
Following embodiment is only for illustrating the technical scheme of the invention.
Main spindle box, is characterized in that, electric machine support 5 is fixedly mounted on main spindle box 1, and motor plate 18 is fixed on electric machine support 5, and spindle motor 19 is fixed on motor plate 18, and spindle motor 19 times is direct-connected main shaft 12; Locking nut 15 is fixed on gland 14 on main shaft 12, and gland 14 is fixed together and forms a shaft coupling with drive sleeve 11 and spline drived cover 13, on spline drived cover 13, has an air admission hole 20; Drive sleeve 11 is connected with spindle motor 19 use keys, spline drived cover 13 and main shaft 12 use spline joints; Shaft coupling can move up and down on main shaft 12; Piston 10 is fixed on motor plate 18, and cylinder body 16 and end cap 17 form an oil cylinder; Photosignal switch 2 and optoelectronic switch 4 are contained on electric machine support 5, and signal lever 3 is contained on cylinder body 16, and photosignal switch 2 and optoelectronic switch 4 are contained in respectively below and the top of signal lever 3; Screw 9 is fixed on oil cylinder 16, and screw 7 is fixed on plate 6, and plate 6 is fixed on electric machine support 5, spring 8 one end on screw 7 one end on screw 9.
Claims (1)
1. a main spindle box, it is characterized in that, it is upper that electric machine support (5) is fixedly mounted on main spindle box (1), and motor plate (18) is fixed on electric machine support (5), it is upper that spindle motor (19) is fixed on motor plate (18), the lower direct-connected main shaft (12) that has of spindle motor (19); It is upper that gland (14) is fixed on main shaft (12) by locking nut (15), and gland (14) is fixed together and forms a shaft coupling with drive sleeve (11) and spline drived cover (13), has an air admission hole (20) on spline drived cover (13); Drive sleeve (11) is connected with key with spindle motor (19), spline drived cover (13) and spline joint for main shaft (12); Shaft coupling can move up and down on main shaft (12); It is upper that piston (10) is fixed on motor plate (18), cylinder body (16) and an oil cylinder of end cap (17) composition; It is upper that photosignal switch (2) and optoelectronic switch (4) are contained in electric machine support (5), and it is upper that signal lever (3) is contained in cylinder body (16), and photosignal switch (2) and optoelectronic switch (4) are contained in respectively below and the top of signal lever (3); Screw two (9) is fixed on cylinder body (16), and it is upper that screw one (7) is fixed on plate (6), and it is upper that plate (6) is fixed on electric machine support (5), and one end is gone up on screw two (9) at screw one (7) in spring (8) one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110104912.XA CN102756136B (en) | 2011-04-26 | 2011-04-26 | Spindle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110104912.XA CN102756136B (en) | 2011-04-26 | 2011-04-26 | Spindle box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102756136A CN102756136A (en) | 2012-10-31 |
| CN102756136B true CN102756136B (en) | 2014-06-18 |
Family
ID=47050918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110104912.XA Expired - Fee Related CN102756136B (en) | 2011-04-26 | 2011-04-26 | Spindle box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102756136B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401295Y (en) * | 1999-12-01 | 2000-10-18 | 曾文正 | Structure improved directly joined spindle |
| CN2616324Y (en) * | 2003-04-29 | 2004-05-19 | 财团法人工业技术研究院 | Cutter-removing mechanism for direct-type main spindle of toolroom machine |
| CN101386140A (en) * | 2008-09-23 | 2009-03-18 | 无锡桥联数控机床有限公司 | Numerical control gantry miller built-in release-cutter oil cylinder structure |
| CN201609842U (en) * | 2009-12-04 | 2010-10-20 | 威海华东数控股份有限公司 | Automatic broaching device of extending mill head |
| CN202087847U (en) * | 2011-04-26 | 2011-12-28 | 浙江联强数控机床股份有限公司 | Spindle box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2557915B2 (en) * | 1987-11-20 | 1996-11-27 | 東芝機械株式会社 | Spindle drive |
| JP4922476B2 (en) * | 2006-08-03 | 2012-04-25 | シチズンホールディングス株式会社 | Machine tool spindle |
-
2011
- 2011-04-26 CN CN201110104912.XA patent/CN102756136B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401295Y (en) * | 1999-12-01 | 2000-10-18 | 曾文正 | Structure improved directly joined spindle |
| CN2616324Y (en) * | 2003-04-29 | 2004-05-19 | 财团法人工业技术研究院 | Cutter-removing mechanism for direct-type main spindle of toolroom machine |
| CN101386140A (en) * | 2008-09-23 | 2009-03-18 | 无锡桥联数控机床有限公司 | Numerical control gantry miller built-in release-cutter oil cylinder structure |
| CN201609842U (en) * | 2009-12-04 | 2010-10-20 | 威海华东数控股份有限公司 | Automatic broaching device of extending mill head |
| CN202087847U (en) * | 2011-04-26 | 2011-12-28 | 浙江联强数控机床股份有限公司 | Spindle box |
Non-Patent Citations (2)
| Title |
|---|
| JP平1-135403A 1989.05.29 |
| JP特开2008-36747A 2008.02.21 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102756136A (en) | 2012-10-31 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20140618 Termination date: 20160426 |