CN201720722U - Water feeding cutter loosening unloading mechanism of high-speed central water outlet spindle - Google Patents
Water feeding cutter loosening unloading mechanism of high-speed central water outlet spindle Download PDFInfo
- Publication number
- CN201720722U CN201720722U CN 201020114563 CN201020114563U CN201720722U CN 201720722 U CN201720722 U CN 201720722U CN 201020114563 CN201020114563 CN 201020114563 CN 201020114563 U CN201020114563 U CN 201020114563U CN 201720722 U CN201720722 U CN 201720722U
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- flange
- main shaft
- axle sleeve
- knife
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Abstract
The utility model discloses a water feeding cutter unloading mechanism of high-speed central water outlet spindle, which comprises an unloading spline nut, a reverse fastening spline flange, a flange, a hinge joint, a rear joint piece, a screw plug, a rear flange, a cutter striking piston, an outer cylinder, a piston cylinder, a standstill pin, a cutter striking sleeve, a front joint piece, a front spring set, a front sealing pair, a rear sealing pair, an intermediate spring set, a standstill pin, a shaft sleeve, a front flange shaft sleeve, a rear spring set, a front automatic separating cover, a retainer ring, a rear automatic separating cover, a standstill pin, a rear spring, a rear flange shaft sleeve and a pressure gasket. The mechanism improves working environment of a spindle bearing, improves retentivity of rotation precision of the spindle bearing, and prolongs the service life of the spindle.
Description
Technical field
The utility model relates to a kind of parts of main shaft, is specifically related to a kind of high speed center water outlet main shaft and gives yew cutter unloading mechanism.
Background technology
The high efficiency automated machine tool that is used in the manufacturing complex shapes workpiece that machining center is made up of plant equipment and digital control system.At present, in the manufacture process of modernized numerical control equipment, the precision problem of machine tool chief axis is one of key technology that influences machine tool accuracy and stability, and the performance that how to improve spindle unit is most important to improving the lathe combination property.
The automatic loose broaching tool action of main shaft is that requisite function is equipped in modern numerical control manufacturings such as horizontal Machining centers, vertical machining centre, gantry machining center, in its exchanging knives process, the influence of the axial force that main shaft can produce because of loose cutter process causes the motion of main shaft precision to keep phase and service life thereof to reduce; Therefore, how in limited space, to prevent the influence of axial force, keep the precision of main shaft, the machining center main shaft is especially had important meaning to high-speed electric main shaft main shaft.
Summary of the invention
The utility model purpose provides a kind of high speed center water outlet main shaft and gives yew cutter unloading mechanism, to guarantee the kinematic accuracy of main shaft, improves its service life.
For achieving the above object, the technical solution adopted in the utility model is: a kind of high speed center water outlet main shaft is given yew cutter unloading mechanism, comprise off-load splined nut, left-hand thread spline flange, flange, articulated joint, back fittings body, plug screw, rear flange, the piston of forging a knife, outer cylinder body, piston/cylinder, spline pin and the cover of forging a knife
The main shaft piston is located in the main shaft beam barrel, the front end face of main shaft piston offsets with the rear end face that is positioned at the main shaft dish spring group of main shaft, the off-load splined nut is located at the rear end of main shaft beam barrel, the front end of outer cylinder body is provided with flange, piston/cylinder is located in the outer cylinder body, the external diameter of piston/cylinder and the internal diameter of outer cylinder body cooperate, rear flange is fixed at the rear side of piston/cylinder, the rear end face of rear flange is provided with 2 articulated joints, left-hand thread spline flange is fixed at the front side of piston/cylinder, the piston of forging a knife is located in the piston/cylinder, and the external diameter of the piston of forging a knife and the internal diameter of piston/cylinder cooperate; Forging a knife is sheathed on the piston nose of forging a knife,
Also comprise front connector body, front spring group, preceding sealing pair, back sealing pair, medi-spring group, spline pin, axle sleeve, forward flange axle sleeve, rear spring group, preceding automatic separate cover, back-up ring, back separate cover, spline pin, rear spring, rear flange axle sleeve and pressure pad automatically,
Described front connector body is located at the rear end of main shaft piston, and preceding sealing pair is located at the rear end of front connector body, the rear flange axle sleeve be located at forge a knife piston and forge a knife the cover between, rear spring is mounted on forges a knife between piston and the rear flange axle sleeve,
The forward flange axle sleeve is fixedlyed connected by screw with rear flange axle sleeve front end, and the rear end of forward flange axle sleeve is provided with rear spring, back separate cover and preceding separate cover automatically automatically successively,
Axle sleeve is located in the axis hole of forward flange axle sleeve, is provided with medi-spring group and spline pin between itself and the forward flange axle sleeve, and the rear end of axle sleeve is provided with back-up ring, and the end face of preceding automatic separate cover inner face and back-up ring fits; The axle sleeve front end is provided with the back sealing pair, and the rear end face of preceding sealing pair is parallel with the front end face of back sealing pair, and preceding sealing pair and back sealing pair are on same axis;
Rear flange axle sleeve rear end is provided with the back fittings body, and back fittings body rear end is provided with straight coupling, and pressure pad is located on the outer face of the cover of forging a knife, and front spring is mounted between pressure pad and the left-hand thread spline flange.
Above, outer cylinder body fixes by screw and main spindle box or main shaft shell; Piston/cylinder is located in the outer cylinder body, and the external diameter of piston/cylinder and the internal diameter of outer cylinder body cooperate, under the spline pin effect of being fixed on the flange, can be in the cavity of outer cylinder body left and right sides linear slide.The piston of forging a knife is located in the piston/cylinder, and the internal diameter of its external diameter and piston/cylinder cooperates, can be in the cavity of piston/cylinder left and right sides linear slide.Forging a knife is sheathed on the piston nose of forging a knife, and the front end face of the cover of forging a knife and the rear end face of main shaft piston keep certain interval.Preceding separate cover inner face automatically and back-up ring end face fit under the effect of rear spring group.Described plug screw is located at technology oilhole place.
In the technique scheme, described rear spring group is cylindrical spring or dish spring.
In the technique scheme, the spring rate of described rear spring group is greater than the spring rate of medi-spring group.
Operation principle of the present utility model is: sealing pair system in back comprises back sealing pair, axle sleeve, preceding automatic separate cover and back-up ring, and back sealing pair is that two groups of springs are arranged, and two groups of spring forces are F1 and F2; F3 is a pressure cooling medium; When obstructed cooling medium, back sealing pair is stressed to be F1 and F2, and F1＜F2, moves behind the sealing pair after making, throws off slight distance with preceding sealing rear end face, and therefore, when obstructed medium was done running, two sealing surfaces kept minim gap, protected sealing surface injury-free; When leading to cooling medium, it is F1 that back sealing pair system is subjected to power, F2 and F3, and F1+F3＞F2, back sealing pair is to be forced to reach, and combine with preceding sealing surface, recover sealing function, so when cooling medium feeds swivel joint, two sealing surfaces will be in the moment closure, concrete execution action is: cooling medium feeds straight coupling and enters into the back fittings body, because automatic separate cover also moved forward before separate cover moved forward and forces automatically after the effect of pressure, and the rear spring group compressed, axle sleeve moves forward under the effect that is subjected to medi-spring group forward thrust, back sealing pair on it move forward with it and with the applying that is installed in the preceding sealing pair on the front connector body, automatic separate cover inside before cooling medium flow into by several through holes on the automatic separate cover in back, and pass through axle sleeve successively, back sealing pair, preceding sealing pair, the front connector body, the main shaft piston flows into the front connector body inside that links to each other with the main shaft Tiebar structure with the groups of springs of main shaft inboard, and then is sprayed onto the cutting operation zone by main shaft and cutter inside.
In the time of the lathe tool changing, main shaft remains static, cooling medium stops to feed, the pressure-air medium will be passed in the straight coupling, identical with cooling medium feeding process, back sealing pair is will be with the piston reach of forging a knife, final two sealing pairs are fitted, the pressure-air medium blows out from spindle taper hole by main shaft inside, remove spindle taper hole inwall impurity dust, meanwhile, hydraulic medium flows out from the articulated joint inflow and from articulated joint, the promotion piston of forging a knife moves forward at the effect lower edge of preceding spline pin axis direction, move forward with the fixing cover of forging a knife of the piston of forging a knife thereupon and to fit with main shaft piston rear end face behind the 2mm, under the effect of reaction force, move and drive the inner face applying of inner face with the left-hand thread spline flange of off-load splined nut behind the piston/cylinder, cause the cover of forging a knife to promote to move the 7.5mm that continues to move forward (main shaft pine cutter stroke) behind the main shaft piston, this process is a main shaft pine cutter;
Behind cutter changing, hydraulic medium flows out from the articulated joint inflow and from articulated joint, the piston of forging a knife moves after under the effect of hydraulic medium and front spring combining ability, move after under the effect of main shaft piston loose cutter groups of springs in main shaft, back sealing pair is will be with the piston reach of forging a knife, return to the home position respectively, this process is a main spindle broach.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, the utility model has improved the working environment of main shaft bearing, has improved the retentivity of main shaft bearing running accuracy, has prolonged the life-span of main shaft.
2, the utility model has increased the dried function of motion of main shaft cooling, practical application proves, adopt the main shaft of the utility model structure can avoid beat because of swivel joint rock generation to the dynamically balanced destruction of main shaft, not only improved the precision of processing operation surface, and the service life of having improved the water outlet main shaft.
3, adopt the main shaft of the utility model structure can use cooling fluid, hydraulic oil or air, the spindle operation rotating speed reaches as high as 50,000 rev/mins, and pressure reaches as high as 105bar, temperature is up to 120 ℃, on high-grade number lathes such as horizontal, vertical, gantry machining center.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment one;
Accompanying drawing 2 is the A-A cutaway view of Fig. 1;
Accompanying drawing 3 is the stereogram of off-load splined nut among the utility model embodiment one;
Accompanying drawing 4 is the side view of Fig. 3;
Accompanying drawing 5 is the stereogram of left-hand thread spline flange among the utility model embodiment one;
Accompanying drawing 6 is the side view of Fig. 5.
Wherein: 1, main shaft beam barrel; 2, main shaft dish spring group; 3, main shaft piston; 4, off-load splined nut; 5, front connector body; 6, left-hand thread spline flange; 7, flange; 8, front spring group; 9, preceding sealing pair; 10, back sealing pair; 11, medi-spring group; 12, spline pin; 13, axle sleeve; 14, forward flange axle sleeve; 15, rear spring group; 16, preceding automatic separate cover; 17, back-up ring; 18, the automatic separate cover in back; 19, spline pin; 20,21,23, handing-over joint; 22, back fittings body; 23, rear spring; 24, rear spring; 25, plug screw; 26, rear flange; 27, the piston of forging a knife; 28, outer cylinder body; 29, rear flange axle sleeve; 30, piston/cylinder; 31, spline pin; 32, pressure pad; 33, the cover of forging a knife.
The specific embodiment
Below in conjunction with figure and embodiment the utility model is further described:
Embodiment one
Shown in accompanying drawing 1～6, a kind of high speed center water outlet main shaft is given yew cutter unloading mechanism, comprise off-load splined nut 4, left-hand thread spline flange 6, flange 7, articulated joint 20,21,23, back fittings body 22, plug screw 25, rear flange 26, the piston 27 of forging a knife, outer cylinder body 28, piston/cylinder 30, the spline pin 31 and the cover 33 of forging a knife, wherein main shaft piston 3 is installed on the inboard of main shaft beam barrel 1, its front end is fitted with main shaft dish spring group 2 rear end faces that are positioned at the main shaft inboard, off-load splined nut 4 is installed on the rear end of main shaft beam barrel 1, outer cylinder body 28 fixes by screw and main spindle box or main shaft shell, its front end is equipped with flange 7, piston/cylinder 30 is installed in the cavity of outer cylinder body 28, the internal diameter of its external diameter and outer cylinder body 28 cooperates, under spline pin 31 effects of being fixed on the flange 7, can be in the cavity of outer cylinder body 28 left and right sides linear slide, rear flange 26 is fixed in the rear side of piston/cylinder 30, the rear end face of rear flange 26 is equipped with two articulated joints 20,23, the place is equipped with plug screw 25 at the technology oilhole, left-hand thread spline flange 6 is fixed in the front side of piston/cylinder 30, the piston 27 of forging a knife is installed in the cavity of piston/cylinder 30, the internal diameter of its external diameter and piston/cylinder 30 cooperates, can be in the cavity of piston/cylinder 30 left and right sides linear slide, the cover 33 of forging a knife is installed on the front end face of the piston 27 of forging a knife, the rear end face of its front end face and main shaft piston 3 keeps certain interval, also comprise front connector body 5, front spring group 8, preceding sealing pair 9, back sealing pair 10, medi-spring group 11, spline pin 12, axle sleeve 13, forward flange axle sleeve 14, rear spring group 15, preceding separate cover 16 automatically, back-up ring 17, the back is separate cover 18 automatically, spline pin 19, rear spring 24, rear flange axle sleeve 29, pressure pad 32, wherein front connector body 5 is installed on the rear end face of main shaft piston 3, preceding sealing pair 9 is installed on the rear end of front connector body 5, rear flange axle sleeve 29 is installed on the interior rear spring group 15 of inner chamber of forging a knife piston 27 and forging a knife between the cover 33 and is installed in forge a knife piston 27 and the inner chamber of rear flange axle sleeve 29 on axis direction, forward flange axle sleeve 14 is fixed by screw with rear flange axle sleeve 29 front ends, the rear end of forward flange axle sleeve 14 is equipped with rear spring 24 successively, the back is separate cover 18 and preceding separate cover 16 automatically automatically, axle sleeve 13 is installed in the axis hole of forward flange axle sleeve 14, between itself and the forward flange axle sleeve 14 medi-spring group 11 and spline pin 12 are housed, axle sleeve 13 back ends are equipped with back-up ring 17, preceding separate cover 16 inner faces automatically and back-up ring 17 end faces fit under the effect of rear spring 24, axle sleeve 13 front ends are equipped with back sealing pair 10, the rear end face of preceding sealing pair 9 is parallel with the front end face of back sealing pair 10, and preceding sealing pair 9 and back sealing pair 10 are on same axis, back fittings body 22 is equipped with in rear flange axle sleeve 29 rear ends, straight coupling 21 is equipped with in back fittings body 22 rear ends, pressure pad 32 is installed on cover 33 outer faces of forging a knife, and front spring group 8 is installed between pressure pad 32 and the left-hand thread spline flange 6.
In the technique scheme, described rear spring group 15 is a cylindrical spring.State the spring rate of the spring rate of rear spring group 15 greater than medi-spring group 11.
When the piston 27 of forging a knife was in the rearmost end position, preceding sealing pair 5 kept certain interval with two sealing surfaces of back sealing pair 7; When the piston 27 of forging a knife was in foremost position, the main shaft piston 3 and the cover 33 two of forging a knife closed on and keep certain interval between end face.
Operation principle of the present utility model is: sealing pair system in back comprises back sealing pair, axle sleeve, preceding automatic separate cover and back-up ring, and back sealing pair is that two groups of springs are arranged, and two groups of spring forces are F1 and F2; F3 is a pressure cooling medium; When obstructed cooling medium, back sealing pair is stressed to be F1 and F2, and F1＜F2, moves behind the sealing pair after making, throws off slight distance with preceding sealing rear end face, and therefore, when obstructed medium was done running, two sealing surfaces kept minim gap, protected sealing surface injury-free; When leading to cooling medium, it is F1 that back sealing pair system is subjected to power, F2 and F3, and F1+F3＞F2, back sealing pair is to be forced to reach, and combine with preceding sealing surface, recover sealing function, so when cooling medium feeds swivel joint, two sealing surfaces will be in the moment closure, concrete execution action is: cooling medium feeds straight coupling and enters into the back fittings body, because automatic separate cover also moved forward before separate cover moved forward and forces automatically after the effect of pressure, and the rear spring group compressed, axle sleeve moves forward under the effect that is subjected to medi-spring group forward thrust, back sealing pair on it move forward with it and with the applying that is installed in the preceding sealing pair on the front connector body, automatic separate cover inside before cooling medium flow into by several through holes on the automatic separate cover in back, and pass through axle sleeve successively, back sealing pair, preceding sealing pair, the front connector body, the main shaft piston flows into the front connector body inside that links to each other with the main shaft Tiebar structure with the groups of springs of main shaft inboard, and then is sprayed onto the cutting operation zone by main shaft and cutter inside.
In the time of the lathe tool changing, main shaft remains static, cooling medium stops to feed, the pressure-air medium will be passed in the straight coupling, identical with cooling medium feeding process, back sealing pair is will be with the piston reach of forging a knife, final two sealing pairs are fitted, the pressure-air medium blows out from spindle taper hole by main shaft inside, remove spindle taper hole inwall impurity dust, meanwhile, hydraulic medium flows out from the articulated joint inflow and from articulated joint, the promotion piston of forging a knife moves forward at the effect lower edge of preceding spline pin axis direction, move forward with the fixing cover of forging a knife of the piston of forging a knife thereupon and to fit with main shaft piston rear end face behind the 2mm, under the effect of reaction force, move and drive the inner face applying of inner face with the left-hand thread spline flange of off-load splined nut behind the piston/cylinder, cause the cover of forging a knife to promote to move the 7.5mm that continues to move forward (main shaft pine cutter stroke) behind the main shaft piston, this process is a main shaft pine cutter;
Behind cutter changing, hydraulic medium flows out from the articulated joint inflow and from articulated joint, the piston of forging a knife moves after under the effect of hydraulic medium and front spring combining ability, move after under the effect of main shaft piston loose cutter groups of springs in main shaft, back sealing pair is will be with the piston reach of forging a knife, return to the home position respectively, this process is a main spindle broach.
Claims (3)
1. a high speed center water outlet main shaft is given yew cutter unloading mechanism, comprise off-load splined nut (4), left-hand thread spline flange (6), flange (7), articulated joint (20,21,23), back fittings body (22), plug screw (25), rear flange (26), the piston of forging a knife (27), outer cylinder body (28), piston/cylinder (30), spline pin (31) and the cover (33) of forging a knife
Main shaft piston (3) is located in the main shaft beam barrel (1), the front end face of main shaft piston (3) offsets with the rear end face that is positioned at the main shaft dish spring group (2) of main shaft, off-load splined nut (4) is located at the rear end of main shaft beam barrel (1), the front end of outer cylinder body (28) is provided with flange (7), piston/cylinder (30) is located in the outer cylinder body (28), the internal diameter of the external diameter of piston/cylinder (30) and outer cylinder body (28) cooperates, rear flange (26) is fixed at the rear side of piston/cylinder (30), the rear end face of rear flange (26) is provided with 2 articulated joints (20,23), left-hand thread spline flange (6) is fixed at the front side of piston/cylinder (30), the piston (27) of forging a knife is located in the piston/cylinder (30), and the internal diameter of the external diameter of the piston of forging a knife (27) and piston/cylinder (30) cooperates; The cover (33) of forging a knife is located at the piston of forging a knife (27) front end, it is characterized in that:
Also comprise front connector body (5), front spring group (8), preceding sealing pair (9), back sealing pair (10), medi-spring group (11), spline pin (12), axle sleeve (13), forward flange axle sleeve (14), rear spring group (15), preceding automatic separate cover (16), back-up ring (17), back separate cover (18), spline pin (19), rear spring (24), rear flange axle sleeve (29) and pressure pad (32) automatically
Described front connector body (5) is located at the rear end of main shaft piston (3), preceding sealing pair (9) is located at the rear end of front connector body (5), rear flange axle sleeve (29) is located at the piston of forging a knife (27) and is forged a knife between the cover (33), and rear spring group (15) is located between piston of forging a knife (27) and the rear flange axle sleeve (29)
Forward flange axle sleeve (14) is fixedlyed connected by screw with rear flange axle sleeve (29) front end, and the rear end of forward flange axle sleeve (14) is provided with rear spring (24), back separate cover (18) and preceding separate cover (16) automatically automatically successively,
Axle sleeve (13) is located in the axis hole of forward flange axle sleeve (14), be provided with medi-spring group (11) and spline pin (12) between itself and the forward flange axle sleeve (14), the rear end of axle sleeve (13) is provided with back-up ring (17), and the end face of preceding automatic separate cover (16) inner face and back-up ring (17) fits; Axle sleeve (13) front end is provided with back sealing pair (10), and the rear end face of preceding sealing pair (9) is parallel with the front end face of back sealing pair (10), and preceding sealing pair (9) and back sealing pair (10) are on same axis;
Rear flange axle sleeve (29) rear end is provided with back fittings body (22), and back fittings body (22) rear end is provided with straight coupling (21), and pressure pad (32) is located on the outer face of cover (33) of forging a knife, and front spring group (8) is located between pressure pad (32) and the left-hand thread spline flange (6).
2. high speed according to claim 1 center water outlet main shaft is given yew cutter unloading mechanism, it is characterized in that: described rear spring group (15) is cylindrical spring or dish spring.
3. high speed according to claim 1 center water outlet main shaft is given yew cutter unloading mechanism, and it is characterized in that: the spring rate of described rear spring group (15) is greater than the spring rate of medi-spring group (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020114563 CN201720722U (en) | 2010-02-04 | 2010-02-04 | Water feeding cutter loosening unloading mechanism of high-speed central water outlet spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020114563 CN201720722U (en) | 2010-02-04 | 2010-02-04 | Water feeding cutter loosening unloading mechanism of high-speed central water outlet spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201720722U true CN201720722U (en) | 2011-01-26 |
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ID=43489007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020114563 Expired - Fee Related CN201720722U (en) | 2010-02-04 | 2010-02-04 | Water feeding cutter loosening unloading mechanism of high-speed central water outlet spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201720722U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341772A (en) * | 2013-06-28 | 2013-10-09 | 上海三一精机有限公司 | Main shaft loose knife unloading mechanism and lathe |
| TWI469848B (en) * | 2012-11-30 | 2015-01-21 | Vision Wide Tech Co Ltd | A spindle head of machining center comprising a coolant mechanism |
| CN104493603B (en) * | 2014-12-11 | 2016-09-14 | 宁波海天精工股份有限公司 | A kind of spindle floating is forged a knife structure |
-
2010
- 2010-02-04 CN CN 201020114563 patent/CN201720722U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI469848B (en) * | 2012-11-30 | 2015-01-21 | Vision Wide Tech Co Ltd | A spindle head of machining center comprising a coolant mechanism |
| CN103341772A (en) * | 2013-06-28 | 2013-10-09 | 上海三一精机有限公司 | Main shaft loose knife unloading mechanism and lathe |
| CN104493603B (en) * | 2014-12-11 | 2016-09-14 | 宁波海天精工股份有限公司 | A kind of spindle floating is forged a knife structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130204 |