CN102744638B - Hydraulic turret - Google Patents
Hydraulic turret Download PDFInfo
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- CN102744638B CN102744638B CN201210270044.7A CN201210270044A CN102744638B CN 102744638 B CN102744638 B CN 102744638B CN 201210270044 A CN201210270044 A CN 201210270044A CN 102744638 B CN102744638 B CN 102744638B
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Abstract
The invention relates to a hydraulic turret. A cutter shaft is arranged in a shell, and a circular hydraulic cylinder is arranged in outer circumference of the cutter shaft. The front section of the cutter shaft is connected with a movable end-toothed disc and a cutter. A fixed end-toothed disc is arranged at the front end of the shell. The rear section of the cutter shaft is connected with a hydraulic motor through a driven gear and a driving gear. The driven gear is connected with a circular positioning disc and is provided with connecting rods uniformly. The positioning disc is provided with through holes uniformly. The connecting rods are inserted into the through holes. A rubber spring is arranged between the connecting rods and the through holes. Positioning grooves are arranged in outer circumference of the positioning disc. A two-position five-way valve with a valve core rod extending out of a valve body is connected with a side surface of the shell. The valve core rod is in the radial direction of the positioning disc. The valve core rod extending out of the two-position five-way valve is opposite to one positioning groove on the positioning disc. The valve core rod of the two-position five-way valve is provided with cone-shaped valve cores respectively matched with circular valve openings. The angle formed by the normal of the cone and the axis is 5-7 degrees. According to the hydraulic turret provided by the invention, a novel cutter used for the next processing step in a required position can be positioned accurately and rapidly.
Description
Technical field
The present invention relates to the cutter axis positioner of the swinging hydraulic turret in a kind of numerically controlled lathe, particularly a kind of swinging hydraulic turret.
Background technology
Swinging hydraulic turret is the automatic tool changer of numerically controlled lathe.Swinging hydraulic turret has housing, in housing, there is circular cylindrical cavity, in cavity, there is leading portion to stretch out the cutter axis of housing, in housing, the excircle of cutter axis has annular hydraulic cylinder, annular hydraulic cylinder has the liquid outlet of advancing and laggard liquid outlet, in annular hydraulic cylinder, there is location to be connected in the annular piston on cutter axis, the leading portion of cutter axis is connected with movable end fluted disc and cutterhead successively, the front end of housing has the stiff end fluted disc that can be meshed with movable end fluted disc, the back segment of cutter axis is connected with the hydraulic rotating drive unit of cutter axis, hydraulic rotating drive unit has hydraulic motor, on the power output shaft of hydraulic motor, there is driving gear, on cutter axis, there is the driven gear being meshed with driving gear.
Numerically controlled lathe in use, is fixed with the required multiple cutters of different procedure of processings on cutterhead, and movable end fluted disc and stiff end fluted disc are in engagement, and cutterhead maintains static, and a cutter on cutterhead is fixed on operating position exactly.When numerically controlled lathe in use needs tool changing tool, the annular piston first promoting on the cutter axis in the annular hydraulic cylinder of hydraulic turret travels forward vertically, drive cutter axis and cutterhead to travel forward vertically, movable end fluted disc on cutterhead is departed from and the engaging of stiff end fluted disc, then with the rotation of fluid motor-driven cutter axis, first allow next procedure of processing new cutter Primary Location used in desired location, promote the annular piston motion backward vertically on cutter axis with annular hydraulic cylinder again, allow the movable end fluted disc on cutterhead recover to engage with stiff end fluted disc, compress end-toothed disc, cutterhead maintains static, allow next procedure of processing new cutter used be fixed on accurately operating position.
In hydraulic turret, accurately and rapidly new cutter Primary Location used next procedure of processing in desired location, be more accurately positioned at desired location be reduce produce time, the important step of raising labour productivity.
In prior art, for new cutter Primary Location used next procedure of processing in desired location, have plenty of on device approach switch is installed, in the time that next procedure of processing new cutter used arrives desired location, approach switch output signal allows hydraulic motor stop operating, make next procedure of processing new cutter Primary Location used to desired location, because hydraulic control has delayed-action, this Primary Location device can not be located very accurately and rapidly.For new cutter Primary Location used next procedure of processing in desired location, also the disk excircle connected with driven gear on cutter axis having is provided with the locating slot that quantity is identical with cutter spacing quantity, driven gear side in housing is connected with the hydraulic-driven alignment pin relative with locating slot, when use, in the time that next procedure of processing new cutter used arrives desired location, shoot out and insert in corresponding locating slot with hydraulic-driven alignment pin, send signal allows the hydraulic control valve of controlling hydraulic motor rotation end simultaneously, stop solution pressure motor rotates, make next procedure of processing new cutter Primary Location used to desired location.Although this Primary Location device can be realized location accurately and rapidly after alignment pin inserts locating slot, due to the cutter axis rotating is stopped suddenly rigidly, momentum transforms suddenly and can produce vibration; Alignment pin is inserted rapidly locating slot and is sent after signal, via controller sends instruction, control hydraulic motor stops operating and has certain hysteresis, make the larger power of generation between alignment pin and locating slot, in addition, valve port in hydraulic control valve body is annular, the spool matching with annular valve port respectively on valve core rod is cylindrical, valve core rod moving valve core is moment cut-off in the time that annular valve port ends hydraulic medium, and the hydraulic medium moment cut-off of high-pressure flow can produce the water hammer harmful to conduit under fluid pressure in pipeline.
In prior art, in the hydraulic control oil circuit of hydraulic turret, to the hydraulic control oil circuit of the forward and backward motion of cutter axis, hydraulic control oil circuit to the forward and reverse rotation of hydraulic motor and to hydraulic-driven alignment pin stretch, contract motion hydraulic control oil circuit be the discrete hydraulic control oil circuit with three control valves, while implementing above-mentioned motion by step, realize and implement above-mentioned motion by step by controller and multiple control element transfer control signal.Because hydraulic pressure transfer control signal has delayed-action, making next procedure of processing new cutter positioning used is not very high in the speed of desired location yet, causes production time long, and labor productivity is not very high.
Summary of the invention
The object of the invention is in order to overcome above-mentioned deficiency, propose a kind of hydraulic turret in desired location new cutter positioning used next procedure of processing quickly and accurately.
The present invention is achieved using the following method.
Hydraulic turret has housing, in housing, there is circular cylindrical cavity, in cavity, there is leading portion to stretch out the cutter axis of housing, in housing, the excircle of cutter axis has annular hydraulic cylinder, annular hydraulic cylinder has the liquid outlet of advancing and laggard liquid outlet, in annular hydraulic cylinder, there is location to be connected in the annular piston on cutter axis, the leading portion of cutter axis is connected with movable end fluted disc and cutterhead successively, the front end of housing has the stiff end fluted disc that can be meshed with movable end fluted disc, the back segment of cutter axis is connected with the hydraulic rotating drive unit of cutter axis, hydraulic rotating drive unit has hydraulic motor, on the power output shaft of hydraulic motor, there is driving gear, on cutter axis, there is the driven gear being meshed with driving gear, driven gear is connected with the annular positioning disk coaxial with driven gear, on driven gear, be evenly equipped with the axis connecting rod parallel with the axis of driven gear, on positioning disk, be evenly equipped with through hole, the axis of this through hole is parallel with the axis of positioning disk, connecting rod on driven gear is inserted in respectively in through hole, between connecting rod and through hole, there is rubber spring, the excircle of positioning disk is evenly equipped with locating slot, the side of housing is connected with two five-way valves of the extended valve body of valve core rod proposing in the present invention, valve core rod is at above-mentioned positioning disk radially, the valve core rod that stretch out above-mentioned two five-way valve inner ends is relative with a locating slot on above-mentioned positioning disk, in the valve body of above-mentioned two five-way valves, there is circle hole shape valve pocket, in valve pocket, there is the valve core rod of extended valve body, two five-way electromagnetic valves have oil-in, forward oil-out, oppositely oil-out, forward oil return opening, oppositely oil return opening, the second reverse oil return opening and oil drain out, in hydraulic control valve body, there is annular valve port, on valve core rod, there is the truncated cone-shaped spool matching with annular valve port respectively, angle between normal and the axis of round platform is 5～7 degree.
Above-mentioned hydraulic turret need coordinate corresponding hydraulic control oil circuit work, Hydraulic Elements in hydraulic control oil circuit have connected oil pump, reversal valve, hydraulic cylinder and hydraulic motor, reversal valve has two five-way valves of the extended valve body of valve core rod proposing in the present invention, control the three-position four-way valve of hydraulic motor rotating commutation, two five-way valves are connected with and drive the flexible hydraulic cylinder of its valve core rod, hydraulic cylinder be connected with can make the flexible commutation of its piston rod two position four-way valves, above-mentioned two five-way valves are connected with the oil circuit of the forward and reverse commutation campaign of piston rod that drives annular hydraulic cylinder and the oil circuit that drives hydraulic motor to rotate, above-mentioned two five-way valves can be controlled and drive hydraulic motor to rotate the break-make of oil circuit, while driving the oil circuit connection of hydraulic motor rotation, drive hydraulic motor rotating commutation to rotate by three-position four-way valve.
In the time that previous cutter end-of-job need to renew cutter, in the process in desired location new cutter Primary Location used next procedure of processing, first to complete following action: the piston rod positive movement that drives annular hydraulic cylinder, allow movable end fluted disc depart from and the engaging of stiff end fluted disc, with the rotation of fluid motor-driven cutter axis.
In the time that cutter axis positioning disk forwards the position needing to, the valve core rod motion of two five-way valves of Driven by Hydraulic Cylinder commutates and allows valve core rod stretch out, the front end of valve core rod inserts in a locating slot of positioning disk as alignment pin, allow cutter axis stop operating, disconnect the oil circuit of hydraulic motor simultaneously, hydraulic motor stops operating, new cutter Primary Location in desired location, the piston rod counter motion of hydraulic-driven annular hydraulic cylinder simultaneously, allow movable end fluted disc engage with stiff end fluted disc, new cutter is accurately positioned at desired location.
In the process of above-mentioned new cutter Primary Location, when the valve core rod motion of two five-way valves commutates, when the front end of valve core rod inserts in a locating slot of positioning disk as alignment pin, cutter axis stops operating suddenly, because have rubber spring between driven gear and positioning disk, the momentum that rubber spring absorbs driven gear rotation can alleviate vibration; In the time that valve core rod moves the hydraulic medium of cut-off driving hydraulic motor, because the spool matching with valve port on valve core rod is truncated cone-shaped, oil circuit procedures of turn-off is had to certain Slow Close effect, alleviate the water hammer producing in pipeline when hydraulic medium is closed; The present invention has two five-way valves of the extended valve body of valve core rod proposing in the present invention, coordinate corresponding hydraulic control oil circuit, can synchronously, sequentially realize and brake the actions such as end-toothed disc and engaging of stiff end fluted disc of rotating, reactivate of cutter axis, stop solution pressure motor with latch, can be quickly and accurately new cutter positioning used next procedure of processing at desired position liquid.
Below in conjunction with accompanying drawing, the present invention is further described.
Brief description of the drawings
Fig. 1 is according to the main cross-sectional schematic of a kind of hydraulic turret of scheme of the invention proposition of the present invention;
Fig. 2 is that schematic diagram cuts open in the side-looking office of Fig. 1;
Fig. 3 is that the master of positioning disk looks schematic diagram;
Fig. 4 is the A-A generalized section of Fig. 3;
Fig. 5 is that the master of rubber spring looks schematic diagram;
Fig. 6 is the schematic side view of Fig. 5;
Fig. 7 is the I place enlarged diagram of Fig. 2 before spool is to the second reverse oil return opening cut-off;
Fig. 8 is the I place enlarged diagram of Fig. 2 after spool is to the second reverse oil return opening cut-off;
Fig. 9 is the schematic diagram of the required hydraulic control oil circuit of this hydraulic turret;
Figure 10 is the enlarged diagram of two five-way valves in Fig. 9.
Detailed description of the invention
In Fig. 1～Figure 10, hydraulic turret has housing 1, in housing, there is circular cylindrical cavity 2, in cavity, there is leading portion to stretch out the cutter axis 3 of housing, in housing, the excircle of cutter axis has annular hydraulic cylinder 4, annular hydraulic cylinder has the liquid outlet of advancing 5 and laggard liquid outlet 6, in annular hydraulic cylinder, there is location to be connected in the annular piston 7 on cutter axis, the leading portion of cutter axis is connected with movable end fluted disc 8 and cutterhead 9 successively, the front end of housing has the stiff end fluted disc 10 that can be meshed with movable end fluted disc, the back segment of cutter axis is connected with the hydraulic rotating drive unit of cutter axis, hydraulic rotating drive unit has hydraulic motor 11, on the power output shaft of hydraulic motor, there is driving gear 12, on cutter axis, there is the driven gear 13 being meshed with driving gear, driven gear is connected with the annular positioning disk 14 coaxial with driven gear, on driven gear, be evenly equipped with the axis connecting rod parallel with the axis of driven gear 15, on positioning disk, be evenly equipped with through hole 16, the axis of this through hole is parallel with the axis of positioning disk, connecting rod on driven gear is inserted in respectively in through hole, between connecting rod and through hole, there is rubber spring 17, the excircle of positioning disk is evenly equipped with locating slot 18, the side of housing is connected with two five-way valves 20 of the valve core rod 19 extended valve bodies that propose in the present invention, the axis of valve core rod is at above-mentioned positioning disk radially, the valve core rod that stretch out above-mentioned two five-way valve inner ends is relative with a locating slot on above-mentioned positioning disk, in the valve body of above-mentioned two five-way valves, there is circle hole shape valve pocket 21, in valve pocket, there is the valve core rod 19 of extended valve body, two five-way electromagnetic valves have oil inlet P, forward oil-out A, oppositely oil-out B, forward oil return opening a, oppositely oil return opening b, the second reverse oil return opening t and oil drain out T, in hydraulic control valve body, there is annular valve port 22, on valve core rod, there is the spool 23 matching with annular valve port respectively, the spool that the annular valve port communicating with the second reverse oil return opening matches is truncated cone-shaped, angle a between normal and the axis of round platform is 5～7 degree.
Above-mentioned hydraulic turret need coordinate corresponding hydraulic circuit and controller work, and controller is by the working procedure control hydraulic circuit work of input.
Fig. 9, Tu10Zhong, hydraulic turret connects connected oil pump 24, reversal valve and hydraulic cylinder in corresponding hydraulic circuit, reversal valve has two five-way valves of the extended valve body of valve core rod proposing in the present invention, the valve core rod of above-mentioned two five-way valves is connected with hydraulic cylinder 25, hydraulic cylinder is connected with two position four-way valves 26 that drive the flexible commutation motion of its piston rod, and hydraulic motor is connected with controls the three-position four-way valve 27 that its rotating commutation is rotated.
Above-mentioned two five-way valves are and the akin reversal valve of two position four-way valves, and what above-mentioned two five-way valves were different from two position four-way valves is that two position four-way valves only have a reverse oil return opening, and above-mentioned two five-way valves have two reverse oil return openings.Above-mentioned two five-way valves are made the oil circuit 28 of direct action and reverse action commutation except being connected with control annular hydraulic cylinder, be also connected with the oil circuit 29 that drives hydraulic motor to rotate, the oil circuit of this oil circuit and the forward and reverse motion of three-position four-way valve composition driving hydraulic motor.
In the hydraulic circuit of above-mentioned hydraulic turret, oil delivery side of pump G is connected with the oil inlet P of two five-way valves, the forward oil-out A of two five-way valves is connected with the liquid outlet 5 that advances of annular hydraulic cylinder, the forward oil return opening a of two five-way valves is connected with the laggard liquid outlet 6 of annular hydraulic cylinder, the reverse oil-out of two five-way valves is connected with the laggard liquid outlet of annular hydraulic cylinder, and the reverse oil return opening b of two five-way valves is connected with the liquid outlet that advances of annular hydraulic cylinder;
Above-mentioned oil pump and two position four-way valves composition drive the oil circuit 30 of the flexible commutation of piston rod of hydraulic cylinder 25.
When use, before tool changing tool, drive the piston rod positive movement of annular hydraulic cylinder, allow movable end fluted disc depart from and the engaging of stiff end fluted disc, and rotate with fluid motor-driven cutter axis.
In the time that cutter axis positioning disk forwards the position needing to, the valve core rod of above-mentioned two five-way valves of Driven by Hydraulic Cylinder stretches out, the front end of valve core rod inserts in a locating slot of positioning disk as alignment pin, allow cutter axis stop operating, disconnect the oil circuit of hydraulic motor simultaneously, hydraulic motor stops operating, new cutter Primary Location in desired location, the piston rod counter motion of hydraulic-driven annular hydraulic cylinder simultaneously, allow movable end fluted disc engage with stiff end fluted disc, new cutter is accurately positioned at desired location.
Claims (1)
1. a hydraulic turret, there is housing, in housing, there is circular cylindrical cavity, in cavity, there is leading portion to stretch out the cutter axis of housing, in housing, the excircle of cutter axis has annular hydraulic cylinder, annular hydraulic cylinder has the liquid outlet of advancing and laggard liquid outlet, in annular hydraulic cylinder, there is location to be connected in the annular piston on cutter axis, the leading portion of cutter axis is connected with movable end fluted disc and cutterhead successively, the front end of housing has the stiff end fluted disc that can be meshed with movable end fluted disc, the back segment of cutter axis is connected with the hydraulic rotating drive unit of cutter axis, hydraulic rotating drive unit has hydraulic motor, on the power output shaft of hydraulic motor, there is driving gear, on cutter axis, there is the driven gear being meshed with driving gear, driven gear is connected with the annular positioning disk coaxial with driven gear, it is characterized in that: on driven gear, be evenly equipped with the axis connecting rod parallel with the axis of driven gear, on positioning disk, be evenly equipped with through hole, the axis of this through hole is parallel with the axis of positioning disk, connecting rod on driven gear is inserted in respectively in through hole, between connecting rod and through hole, there is rubber spring, the excircle of positioning disk is evenly equipped with locating slot, the side of housing is connected with two five-way valves of the extended valve body of valve core rod, valve core rod is at above-mentioned positioning disk radially, the valve core rod that stretch out above-mentioned two five-way valve inner ends is relative with a locating slot on above-mentioned positioning disk, in the valve body of above-mentioned two five-way valves, there is circle hole shape valve pocket, in valve pocket, there is the valve core rod of extended valve body, two five-way electromagnetic valves have oil-in, forward oil-out, oppositely oil-out, forward oil return opening, the first reverse oil return opening, the second reverse oil return opening and oil drain out, in hydraulic control valve body, there is annular valve port, on valve core rod, there is the truncated cone-shaped spool matching with annular valve port respectively, angle between normal and the axis of round platform is 5～7 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270044.7A CN102744638B (en) | 2012-08-01 | 2012-08-01 | Hydraulic turret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270044.7A CN102744638B (en) | 2012-08-01 | 2012-08-01 | Hydraulic turret |
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| Publication Number | Publication Date |
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| CN102744638A CN102744638A (en) | 2012-10-24 |
| CN102744638B true CN102744638B (en) | 2014-06-04 |
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| CN201210270044.7A Active CN102744638B (en) | 2012-08-01 | 2012-08-01 | Hydraulic turret |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827066A (en) * | 2015-05-21 | 2015-08-12 | 昆山天成锋精机有限公司 | Electric spindle type hydraulic power cutter turret |
| CN106903538A (en) * | 2015-12-22 | 2017-06-30 | 北京新思维汇德精密磨床有限责任公司 | Rotary type tower tool magazine component and double main axle machine tools |
| CN106670521B (en) * | 2017-02-21 | 2018-11-06 | 台州开启精密机械有限公司 | Servo turret and damper piston cylinder |
| CN107243653B (en) * | 2017-05-31 | 2019-02-22 | 宁波海天精工股份有限公司 | A kind of numerically controlled lathe high pressure water outlet knife tower assembly |
| CN107350495B (en) * | 2017-08-24 | 2023-07-21 | 温岭市三和数控机床设备有限公司 | Power turret protection structure, power turret system and control method |
| CN109226796A (en) * | 2018-11-29 | 2019-01-18 | 黄仕平 | A kind of tool magazine of numerically-controlled machine tool |
| CN112247652A (en) * | 2020-10-12 | 2021-01-22 | 吉林大学 | Numerical control tool rest buffer gear based on reliability consideration |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100655923B1 (en) * | 2006-01-17 | 2006-12-11 | 이더블유에스 코리아 주식회사 | The turret with gear box |
| CN201091923Y (en) * | 2007-10-23 | 2008-07-30 | 毛国良 | Novel pivoted carriage |
| CN201239811Y (en) * | 2008-01-31 | 2009-05-20 | 詹平冬 | Lathe servo tool rest with cutterhead angle locating device |
| KR100951892B1 (en) * | 2008-07-29 | 2010-04-12 | 이더블유에스 코리아 주식회사 | One motor type tool turret |
| CN202716106U (en) * | 2012-08-01 | 2013-02-06 | 辽宁西格马数控机床有限公司 | Hydraulic knife tower |
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