CN202106238U - Balancing and compensating device for numerical control landing milling process center - Google Patents
Balancing and compensating device for numerical control landing milling process center Download PDFInfo
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- CN202106238U CN202106238U CN201120155002XU CN201120155002U CN202106238U CN 202106238 U CN202106238 U CN 202106238U CN 201120155002X U CN201120155002X U CN 201120155002XU CN 201120155002 U CN201120155002 U CN 201120155002U CN 202106238 U CN202106238 U CN 202106238U
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- hydraulic cylinder
- fixed pulley
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- balance
- spindle box
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Abstract
A balancing and compensating device for a numerical control landing milling process center comprises a balancing device and a compensating device. The balancing device comprises a hoisting point, a balance hydraulic cylinder, a movable pulley, a first fixed pulley, a second fixed pulley and a first transmission chain, wherein the hoisting point is arranged in a main spindle box, the balance hydraulic cylinder is reversely arranged on one side surface of a vertical post, the movably pulley is arranged at the free end of a piston rod of the balance hydraulic cylinder, the first fixed pulley is arranged at the top of one side surface of the vertical post corresponding to the hoisting point, the second fixed pulley is arranged at the top of one side surface of the vertical post, one end of the first transmission chain is arranged at the upper end of the main spindle box, and the other end of the first transmission chain bypasses the fixed pulley and the movably pulley to be connected with the vertical post. The compensating device comprises a compensating hydraulic cylinder, a third fixed pulley, a fourth fixed pulley, a slide carriage and a second transmission chain, wherein the compensating hydraulic cylinder is arranged at the upper end of the main spindle box, the third fixed pulley is arranged at the top of one side of the vertical post, the fourth fixed pulley is arranged at the top of the other side of the vertical post, the slide carriage is arranged at the bottom of the vertical post, one end of the second transmission chain is connected with the free end of a piston rod of the compensating hydraulic cylinder, and the other end of the second transmission chain bypasses the fixed pulley and the movably pulley to be connected on the vertical post. The device realizes the weight balance and deformation compensation, has the advantages of high speed and high bearing capability, and meets the requirement of the existing machine tool on speed and performance.
Description
Technical field
The utility model relates to machine tool, and particularly numerical control floor mills the balance and the compensation arrangement of boring machining center.
Background technology
High speed development along with China's economic; The high speed development of high-speed railway, large-scale wind electricity equipment, homemade big aircraft project, aerospace equipment and auto manufacturing and engineering machinery particularly, the increasing demand of the numerical control floor that can realize the cutting of high speed high pulling torque being milled the boring machining center strengthens.
Main spindle box mills the vitals of boring machining center as numerical control floor, and it moves up and down bigger to the precision influence of lathe with the weight balancing degree of process.Good weight balancing and deformation-compensated solution have guaranteed rigidity, precision and the precision stability of lathe to a great extent, are one of most important factor that guarantees machine finish.
The gravitational equilibrium method of modern Digit Control Machine Tool mainly contains 4 kinds: mechanical counterweight balance, hydro-cushion, air pressure balance and brake balance.
Weigh again hammer out weighing apparatus of mechanical counterweight balance, this method is simple in structure, the reliable and allotment easily of balance.But the mechanical counterweight balance need take bigger installing space, and balance weight also can increase the lathe overall weight.Under the situation that so it is applicable to that column is fixed, the speed of poor working environment, moving component and acceleration are lower.
Hydro-cushion has characteristics such as volume is little, in light weight, balancing load is big.But the movement velocity of hydro-cushion can not be too high, and the parts of centering, low-speed motion are comparatively suitable.
Air pressure balance has characteristics such as low viscosity and low-density because of gas medium, so can make moving component reach bigger speed and acceleration.But because of the volume of air pressure balance is bigger, can increase the volume of whole machine tool, removing in addition, the noise problem of air pressure balance has also restricted its application in precise machining equipment.
The brake balance is to utilize a kind of method of frictional force equalizing feature gravity, and parts brake when motion is in releasing orientation, does not play balanced action, so only when halted state, the frictional force of brake ability forms equilibrium relation with the gravity of moving component.
Summary of the invention
To the anxious failure of oscillation of mechanical counterweight balance exercise parts swing, rapid traverse speed and acceleration be low; The problem that the pneumatic equalizer counterpoise is low, floor space is big; Simultaneously combining with digital control land and mill that the boring machining center is high-speed, the advantage of high accuracy, high pulling torque cutting characteristics and hydro-cushion; Balance and compensation arrangement that the utility model provides a kind of numerical control floor to mill the boring machining center; Realize weight balancing and deformation-compensated, possess at a high speed, the characteristic of high-mechanic, satisfy modern machine to speed and performance demands.
For achieving the above object, the technical scheme of the utility model is:
Numerical control floor mills the balance and the compensation arrangement of boring machining center, and it comprises, bascule comprises, suspension centre is arranged at main shaft and does not stretch out on the main spindle box of state; Balance hydraulic cylinder is arranged at and lands on column one side at boring-mill work center, and this side is not provided with the guide rail that supplies the main spindle box motion; Balance hydraulic cylinder comprises cylinder body and piston rod, is to be inverted to be provided with, and piston rod is flexible downwards; Movable pulley is arranged at balanced hydraulic cylinder piston rod free end; First, second pulley, wherein, first fixed pulley is arranged at column one side top or the top of corresponding suspension centre through fixed support, and second fixed pulley is arranged at column one side top or the top of corresponding balance hydraulic cylinder through fixed support; First driving-chain, an end is connected in the main spindle box suspension centre, and the other end walks around first, second fixed pulley and movable pulley is connected on the column side; Compensation arrangement comprises, compensating hydraulic cylinder is arranged at the main spindle box upper end, with respect to the opposite side of suspension centre; Three, the 4th fixed pulley; Wherein, The 3rd fixed pulley is arranged at column one side top or the top of corresponding compensating hydraulic cylinder through fixed support, and the 4th fixed pulley is arranged at top, column another side or top through fixed support, and this side is not provided with the guide rail that supplies the main spindle box motion; Slide is arranged at the column side bottom of corresponding the 4th fixed pulley; Second driving-chain, an end are connected in the piston rod free end of compensating hydraulic cylinder, and the other end is walked around the 3rd, the 4th fixed pulley and slide is connected on the column side.
Further, described balance hydraulic cylinder is arranged at and lands column one side at boring-mill work center, and this side is adjacent with column side, main spindle box place.
In addition, described slide and balance hydraulic cylinder are positioned at and land the same side of boring-mill work center stand column.
Described suspension centre is arranged at the main spindle box position of centre of gravity of the state that do not stretch out at main shaft.
Reach counterbalance effect through adjustment and control balance hydraulic cylinder under the utility model duty.Also can be in working order providing pressure to make that the main spindle box head is corresponding through control compensating hydraulic cylinder oil mass down lifts, overcomes " bowing " phenomenon that main shaft stretches out.
The advantage of the utility model:
1) bascule of the utility model adopts hydro-cushion and compensation; More traditional counterweight balance can effectively reduce floor-type milling & boring machine mobile weight, reduce the erection space of lathe and eliminated " vibration " phenomenon in anxious stopping time of lathe, improved the precision and the translational speed of whole machine tool system;
2) the compensation hydraulic oil cylinder adopts inverted structure, end oil supply when this structure can realize balance, and more traditional positive interposed structure has increased nearly 1/3 hydraulic pressure contact area, has increased equilibrant force.
3) hydro-cushion and collocation structure balancing load are big, and the dead-beat phenomenon has not only improved the dynamic property of lathe, and have improved the machining accuracy of lathe.
Description of drawings
Fig. 1 is the schematic perspective view of the utility model one embodiment.
Fig. 2 is the utility model invention figure collocation structure figure.
The specific embodiment
Referring to Fig. 1, Fig. 2, the numerical control floor of the utility model mills the balance and the compensation arrangement of boring machining center, and it comprises bascule 1, compensation arrangement 2.
Bascule 1 comprises, suspension centre 11 is arranged at main spindle box 3 position of centre of gravitys of the state that do not stretch out at main shaft; Balance hydraulic cylinder 12 is arranged at and lands on column 4 one sides at boring-mill work center, and this side is not provided with the guide rail 5 that supplies main spindle box 3 motions; Balance hydraulic cylinder 12 comprises cylinder body 121 and piston rod 122, is to be inverted to be provided with, and piston rod 122 is flexible downwards; Movable pulley 13 is arranged at balanced hydraulic cylinder piston rod 122 free ends; First, second pulley 14,15; Wherein, First fixed pulley 14 is arranged at column 4 one side top or the top of corresponding suspension centre 11 through fixed support, and second fixed pulley 15 is arranged at column 4 one side top or the top of corresponding balance hydraulic cylinder 12 through fixed support; First driving-chain, 16, one ends are connected in main spindle box suspension centre 11, and the other end is walked around first, second fixed pulley 14,15 and movable pulley 13 is connected on column 4 sides.
Compensation arrangement 2 comprises, compensating hydraulic cylinder 21 is arranged at main spindle box 3 upper ends, with respect to the opposite side of suspension centre 11; Three, the 4th fixed pulley 22,23; Wherein, The 3rd fixed pulley 22 is arranged at column 4 one side top or the top of corresponding compensating hydraulic cylinder 21 through fixed support; The 4th fixed pulley 23 is arranged at column top, 4 another side or top through fixed support, and this side is not provided with the guide rail that supplies main spindle box 3 motions; Slide 24 is arranged at column 4 side bottom of corresponding the 4th fixed pulley 23; Second driving-chain, 25, one ends are connected in the piston rod free end of compensating hydraulic cylinder 21, and the other end is walked around the 3rd, the 4th fixed pulley 22,23 and slide 24 is connected on column 4 sides.
Described balance hydraulic cylinder is arranged at and lands column one side at boring-mill work center, and this side is adjacent with column side, main spindle box place, and described slide and balance hydraulic cylinder are positioned at the same side of column.
The main spindle box on-fixed; Can move up and down along column Y axle; Balance hydraulic cylinder is inverted and is fixed on the column side, and when main spindle box corresponding stretching out of HYDRAULIC CONTROL SYSTEM hydraulic cylinder piston rod (indentation) when column Y axle moves up and down, balance hydraulic cylinder end oil supply back piston bar stretched out under the oil pressure effect when main spindle box rose; And then, keep the weight balancing of main spindle box at uphill process through the rising of first driving-chain drive suspension centre; Otherwise; When main spindle box descends along column Y axle, the indentation under the oil pressure effect of balance hydraulic cylinder end oil supply back piston bar, and then through the decline of first driving-chain drive suspension centre; Keep the weight balancing of main spindle box, reduce the uneven wear of Y to turn-screw at uphill process.
When machining state ram and boring shaft extension go out, cause the center of gravity of original system to move forward, thereby also just caused " bowing " phenomenon.Compensation arrangement provides pressure to make that the main spindle box head is corresponding through control compensating cylinder oil mass and lifts, thereby above-mentioned " bowing " amount is compensated when " bowing " occurring.
The utility model cooperatively interacts through balance and compensation mechanism, makes that no matter lathe can both keep excellent precision when main shaft stretches out bore hole still at milling flat, be in optimum state.
Claims (4)
1. numerical control floor mills the balance and the compensation arrangement of boring machining center, it is characterized in that, comprise,
Bascule comprises,
Suspension centre is arranged at main shaft and does not stretch out on the main spindle box of state;
Balance hydraulic cylinder is arranged at and lands on column one side at boring-mill work center, and this side is not provided with the guide rail that supplies the main spindle box motion; Balance hydraulic cylinder comprises cylinder body and piston rod, is to be inverted to be provided with, and piston rod is flexible downwards;
Movable pulley is arranged at balanced hydraulic cylinder piston rod free end;
First, second pulley, wherein, first fixed pulley is arranged at column one side top or the top of corresponding suspension centre through fixed support, and second fixed pulley is arranged at column one side top or the top of corresponding balance hydraulic cylinder through fixed support;
First driving-chain, an end is connected in the main spindle box suspension centre, and the other end walks around first, second fixed pulley and movable pulley is connected on the column side;
Compensation arrangement comprises,
Compensating hydraulic cylinder is arranged at the main spindle box upper end, with respect to the opposite side of suspension centre;
Three, the 4th fixed pulley; Wherein, The 3rd fixed pulley is arranged at column one side top or the top of corresponding compensating hydraulic cylinder through fixed support, and the 4th fixed pulley is arranged at top, column another side or top through fixed support, and this side is not provided with the guide rail that supplies the main spindle box motion;
Slide is arranged at the column side bottom of corresponding the 4th fixed pulley;
Second driving-chain, an end are connected in the piston rod free end of compensating hydraulic cylinder, and the other end is walked around the 3rd, the 4th fixed pulley and slide is connected on the column side.
2. numerical control floor as claimed in claim 1 mills the balance and the compensation arrangement of boring machining center, it is characterized in that, described balance hydraulic cylinder is arranged at and lands column one side at boring-mill work center, and this side is adjacent with column side, main spindle box place.
3. according to claim 1 or claim 2 numerical control floor mills the balance and the compensation arrangement of boring machining center, it is characterized in that, described slide and balance hydraulic cylinder are positioned at and land the same side of boring-mill work center stand column.
4. numerical control floor as claimed in claim 1 mills the balance and the compensation arrangement of boring machining center, it is characterized in that, described suspension centre is arranged at the main spindle box position of centre of gravity of the state that do not stretch out at main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120155002XU CN202106238U (en) | 2011-05-16 | 2011-05-16 | Balancing and compensating device for numerical control landing milling process center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120155002XU CN202106238U (en) | 2011-05-16 | 2011-05-16 | Balancing and compensating device for numerical control landing milling process center |
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|---|---|
| CN202106238U true CN202106238U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120155002XU Expired - Fee Related CN202106238U (en) | 2011-05-16 | 2011-05-16 | Balancing and compensating device for numerical control landing milling process center |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601667A (en) * | 2012-03-28 | 2012-07-25 | 上海三一精机有限公司 | Main spindle box drive system of floor type boring and milling machine and floor type boring and milling machine |
| CN102814697A (en) * | 2012-08-13 | 2012-12-12 | 宁波海天精工股份有限公司 | Hydraulic balance mechanism of spindle box of floor type boring and milling machine |
| CN103707123A (en) * | 2013-11-25 | 2014-04-09 | 南通国盛机电集团有限公司 | Novel horizontal processing center |
| CN108608215A (en) * | 2018-04-27 | 2018-10-02 | 南通国盛智能科技集团股份有限公司 | A kind of Y-axis movable pulley type balanced structure of precise horizontal machining center |
-
2011
- 2011-05-16 CN CN201120155002XU patent/CN202106238U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601667A (en) * | 2012-03-28 | 2012-07-25 | 上海三一精机有限公司 | Main spindle box drive system of floor type boring and milling machine and floor type boring and milling machine |
| CN102814697A (en) * | 2012-08-13 | 2012-12-12 | 宁波海天精工股份有限公司 | Hydraulic balance mechanism of spindle box of floor type boring and milling machine |
| CN102814697B (en) * | 2012-08-13 | 2015-01-21 | 宁波海天精工股份有限公司 | Hydraulic balance mechanism of spindle box of floor type boring and milling machine |
| CN103707123A (en) * | 2013-11-25 | 2014-04-09 | 南通国盛机电集团有限公司 | Novel horizontal processing center |
| CN108608215A (en) * | 2018-04-27 | 2018-10-02 | 南通国盛智能科技集团股份有限公司 | A kind of Y-axis movable pulley type balanced structure of precise horizontal machining center |
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| Date | Code | Title | Description |
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| 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: 20120111 Termination date: 20140516 |