CN102909621B - Precise composite molding plane grinding machine capable of trimming grinding wheel and hydraulic control system of plane grinding machine - Google Patents
Precise composite molding plane grinding machine capable of trimming grinding wheel and hydraulic control system of plane grinding machine Download PDFInfo
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- CN102909621B CN102909621B CN201210416268.4A CN201210416268A CN102909621B CN 102909621 B CN102909621 B CN 102909621B CN 201210416268 A CN201210416268 A CN 201210416268A CN 102909621 B CN102909621 B CN 102909621B
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Abstract
The invention discloses a precise composite molding plane grinding machine capable of trimming a grinding wheel and a hydraulic control system of the plane grinding machine. The precise composite molding plane grinding machine comprises a machine body (17), a stand column (13) mounted on the machine body and a lower worktable (9), wherein a longitudinal screw rod (7), a longitudinal screw rod drive mechanism (4), and a grinding head (2) capable of moving up and down under the action of the longitudinal screw rod are mounted on the stand column; the grinding wheel (1) is mounted at the front end of the grinding head; a horizontal screw rod (12) for driving the lower worktable to move back and forward and a horizontal screw rod drive mechanism (11) are connected to the bottom end of the lower worktable (9); an upper worktable (8) for mounting a diamond pen (3) and a grinding workpiece (18) are mounted on the lower worktable; and a dual-rod hydraulic cylinder (10) with a fixed cylinder body for controlling the upper worktable to move left and right is arranged at the bottom of the upper worktable (8). By adopting the precise composite molding plane grinding machine, the existing precise composite molding plane grinding machine can be directly utilized to form and trim the grinding wheel without a special digital control grinding wheel trimmer. The precise composite molding plane grinding machine is simple in structure and convenient to use, the the working efficiency is improved and the use cost of a machine tool is greatly reduced.
Description
Technical field
The invention belongs to grinder structure and technical field of hydraulic thereof.
Background technology
China is in the flourish stage, along with more and more higher to the required precision of various equipment component, also increasing to the demand of specially for carrying out high accuracy grinding machine.Numerically-controlled precise composite molding surface grinding machine adopts forming grinding wheel and numerical control composite forming technology, greatly improve lathe function, one-machine-multi-function can be realized, a surface grinding machine can not only carry out plane machining, and can complete and comprise groove, the professional processing and forming of the complex parts such as step, curve, for extensive market.But in actual applications, in order to meet the shaping finishing needs to grinder wheel, usually also needing to be equipped with the dedicated numerical control dresser that has two coordinate linkages in addition, causing troublesome poeration, and improve the use cost of lathe.
Summary of the invention
Object of the present invention is just in order to solve the deficiencies in the prior art, one is provided not need to be equipped with dedicated numerical control dresser in addition, but can directly utilize existing accurate composite molding surface grinding machine directly to carry out the shaping finishing of emery wheel, structure is simple, easy to use, can increase work efficiency and significantly reduce lathe use cost can the accurate composite molding surface grinding machine of trimming wheel.The present invention also provide this can the hydraulic control system of accurate composite molding surface grinding machine of trimming wheel.
Object of the present invention is achieved through the following technical solutions.
Can the accurate composite molding surface grinding machine of trimming wheel, comprise lathe bed, be installed on column on lathe bed and lower table; The bistrique that column is provided with longitudinal leadscrew and longitudinal leadscrew driving mechanism, can be moved up and down by longitudinal screw mandrel effect, the front end of bistrique is provided with emery wheel; Lower table) bottom be connected with the horizontal leading screw and horizontal screw drive mechanism that drive lower table movable; Lower table being provided with the upper table for installing diamond pen and grinding work piece, bottom upper table, being provided with the fixed dual-rod hydraulic cylinder of cylinder body controlling upper table side-to-side movement.
The present invention is respectively arranged with the left lateral journey reversing switch of restriction grinding work piece length direction reciprocating stroke relative position on the end face both sides of lower table) and right lateral journey reversing switch, be also provided with lower limit buting iron outward at left lateral journey reversing switch; Upper limit buting iron is provided with bottom upper table.
Can the hydraulic control system of accurate composite molding surface grinding machine of trimming wheel, include the system overflow valve of hydraulic system working pressure when promoting hydraulic cylinder reciprocating 3-position 4-way electro-hydraulic reversing valve, motor-driven hydraulic pump, fuel tank, filter, stop valve, Pressure gauge, the return overflow valve slowing down hydraulic cylinder seating velocity, the work of adjustment grinding machine; 3-position 4-way electro-hydraulic reversing valve by adopt spring centered be communicated with cylinder body fixed dual-rod hydraulic cylinder left and right oil pocket 3-position 4-way main valve, be installed on two one-way throttle valves of slowed down main valve reversing impact about 3-position 4-way main valve oil circuit respectively, hydraulic pilot valve three part of 3-position 4-way forms; The oil circuit leading to hydraulic cylinder oil pocket at 3-position 4-way main valve is also provided with and can be communicated with the two position, three-way electromagnetic change valve of hydraulic cylinder left and right oil pocket and the speed governing pressure-reducing valve of parallel connection, speed governing pressure-reducing valve is in series with check valve; Flow speed control valve is provided with between hydraulic pump and 3-position 4-way electro-hydraulic reversing valve.
The present invention directly utilizes this Y, Z two-axis numerical control linkage function as processing work indispensability of accurate composite molding surface grinding machine, one fixing diamond pen only need be set on the working face of grinding machine upper table, and coordinate with rational hydraulic control system, use Y, Z two-axle interlocking of grinding machine, the shaping finishing of emery wheel can be realized.Structure of the present invention is simple, easy to use, can increase work efficiency.And directly can transform on existing accurate composite molding surface grinding machine basis and form, also need not be equipped with dedicated numerical control dresser in addition again, can significantly reduce lathe use cost.
Content of the present invention is set forth further below in conjunction with Figure of description.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the schematic diagram with diamond pen trimming wheel;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is hydraulic scheme of the present invention.
In figure, 1, emery wheel; 2, bistrique; 3, fixing diamond pen; 4, longitudinal screw mandrel drive mechanism; 5, driving gear; 6, driven gear; 7, longitudinal screw mandrel; 8, upper table; 9, lower table; 10, hydraulic cylinder; 11, cross lead screw driving mechanism; 12, cross lead screw; 13, column; 14, upper limit buting iron; 15, lower limit buting iron; 16, left lateral journey reversing switch; 16 ', right lateral journey reversing switch; 17, lathe bed; 18, grinding work piece; 19,3-position 4-way electro-hydraulic reversing valve; 19.1 3-position 4-way main valve; 19.2 one-way throttle valves; 19.3 3-position 4-way pilot valve; 20, flow speed control valve; 21, two position, three-way electromagnetic change valve; 22, speed governing pressure-reducing valve; 23, check valve; 24, return overflow valve; 25, fuel tank; 26, system overflow valve; 27, stop valve; 28, Pressure gauge; 29, motor; 30, hydraulic pump; 31 filters.
Detailed description of the invention
As Figure 1-Figure 4, can the accurate composite molding surface grinding machine of trimming wheel, comprise lathe bed 17, be installed on column 13 on lathe bed and lower table 9; The bistrique 2 that column is provided with longitudinal leadscrew 7 and longitudinal leadscrew driving mechanism 4, can be moved up and down by longitudinal screw mandrel effect, the front end of bistrique is provided with emery wheel 1; Bistrique 2, under the effect of longitudinal leadscrew 7, does upper and lower motion in Z-direction.Lower table 9 is arranged on lathe bed 17 position above, and the bottom of lower table 9 is connected with the horizontal leading screw 12 and horizontal screw drive mechanism 11 that drive lower table movable, and lower table 9 can do the movable of Y-direction under horizontal leading screw 12 acts on.Lower table is provided with the upper table 8 for installing diamond pen 3 and grinding work piece 18, be provided with the fixed dual-rod hydraulic cylinder 10 of cylinder body controlling upper table side-to-side movement bottom upper table 8, upper table 8 under the effect of hydraulic cylinder 10 in the left and right motion of X-direction.Be respectively arranged with left lateral journey reversing switch 16 and the right lateral journey reversing switch 16 ' of restriction grinding work piece length direction reciprocating stroke relative position on the end face both sides of lower table 9, outside left lateral journey reversing switch 16, be also provided with lower limit buting iron 15; Upper limit buting iron 14 is provided with bottom upper table 8.
The system overflow valve 26 of hydraulic system working pressure when the hydraulic pump 30 that the hydraulic control system of the accurate composite molding surface grinding machine of the present invention includes and promotes the reciprocating 3-position 4-way electro-hydraulic reversing valve 19 of hydraulic cylinder 10, motor 29 drives, fuel tank 25, filter 31, stop valve 27, Pressure gauge 28, the return overflow valve 24 slowing down hydraulic cylinder seating velocity, the work of adjustment grinding machine; 3-position 4-way electro-hydraulic reversing valve 19 by adopt spring centered be communicated with cylinder body fixed dual-rod hydraulic cylinder about 10 oil pocket 3-position 4-way main valve 19.1, be installed on two one-way throttle valves 19.2 of slowed down main valve reversing impact about 3-position 4-way main valve oil circuit respectively, hydraulic pilot valve 19.3 three part of 3-position 4-way forms; The oil circuit leading to hydraulic cylinder 10 oil pocket at 3-position 4-way main valve 19.1 is also provided with and can be communicated with the two position, three-way electromagnetic change valve 21 of hydraulic cylinder about 10 oil pocket and the speed governing pressure-reducing valve 22 of parallel connection, speed governing pressure-reducing valve 22 is in series with check valve 23; Flow speed control valve 20 is provided with between hydraulic pump and 3-position 4-way electro-hydraulic reversing valve 19.
During the present invention's precision composite molding surface grinding machine grinding work piece, upper table 8, in the grinding course of work, is driven by hydraulic cylinder 10 and moves back and forth in X direction, realize the reciprocating motion of grinding work, under grinding duty, upper table translational speed is very fast, and commutating frequency is higher.In working order, the translational speed of upper table is generally 0 ~ 25m/min, and require that commutating frequency is high, the time is short, and has the stationarity that commutates preferably.Digital control system controls longitudinal screw mandrel drive mechanism 4 and rotates, power is passed to longitudinal screw mandrel 7 by driving gear 5 and driven gear 6, accurately moved up and down in z-direction by the bistrique 2 of longitudinal screw mandrel 7 drive installation on column 13 guide rail, realize the compound feeding motion of grinding.Lower table 9 is controlled by digital control system, along Y-direction accurately movement under cross lead screw driving mechanism 11 and cross lead screw 12 drive, realizes the compound feeding motion of grinding.When grinding machine normally works, grinding work piece 18 is fastened on the work top of upper table 8, by horizontal leading screw 12 in the Y direction forward and backward adjustment emery wheel and grinding work piece at the relative position of width, by longitudinal leadscrew 7 make bistrique 2 in z-direction, lower movement, adjustment grinding work piece stock removal; By adjustment left lateral journey reversing switch 16 and right lateral journey reversing switch 16 ', the reciprocating stroke relative position of adjustment grinding work piece length direction.After adjustment, start to carry out grinding to workpiece.
When this accurate composite molding surface grinding machine is trimmed to abrasive wheel, upper table 8 is moved to the left in X direction, by the Non-follow control of control system, the upper limit buting iron 14 that upper table is installed crosses left lateral journey reversing switch 16, move to lower limit buting iron 15 position that lower table 9 is installed, at this moment, fixing diamond pen 3 center and emery wheel center superposition, when emery wheel reconditioning, for reducing the inertial impact force of upper limit buting iron 14 and lower limit buting iron 15, upper table 8 moves deceleration, and system pressure suitably reduces.When emery wheel 1 reconditioning, upper limit buting iron 14 is under the effect of hydraulic system certain pressure, and upper table 8 remains relative to lower table 9 and maintains static.By bistrique 2 on column along Z-direction accurately moving up and down and the compound motion of lower table 9 along the accurate movement of Y-direction, achieve the accurate finishing of fixing diamond pen 3 pairs of forming grinding wheel profile camber lines.
Hydraulic control system of the present invention promote the fixed dual-rod hydraulic cylinder 10 of cylinder body X to reciprocating motion, come by the work of 3-position 4-way electro-hydraulic reversing valve 19.3-position 4-way electro-hydraulic reversing valve is made up of three parts, that is: adopt spring centered 3-position 4-way main valve 19.1; Main valve reversing impact can be slowed down, realize steadily commutating, be installed on 2 one-way throttle valves 19.2 about main valve oil circuit respectively; Three position four-way electromagnetic valve---the hydraulic pilot valve 19.3 of reliable commutation is realized with hydraulic control main valve.
During the normal back and forth form grinding workpiece of grinding machine, hydraulic pilot valve 19.3 is after the energising of 1YA electromagnet, be moved to the left, the right position oil pocket oil circuit of hydraulic pilot valve valve is connected, and under hydraulic action overcomes the promotion of 3-position 4-way main valve 19.1 spring force, 3-position 4-way main valve 19.1 is moved to the left, hydraulic pilot valve valve right position oil pocket oil circuit is connected, pressure oil enters the right chamber of hydraulic cylinder 10, and hydraulic piston is moved to the left, and promotes grinding machine upper table 8 to left movement, when moving to after upper limit buting iron 14 contacts with left lateral journey reversing switch 16, the power-off of 1YA electromagnet, 2YA electromagnet is energized, then hydraulic pilot valve 19.3 moves right, this valve left position oil pocket oil circuit is connected, under hydraulic action overcomes the promotion of 3-position 4-way main valve 19.1 spring force, 3-position 4-way main valve 19.1 moves right, hydraulic pilot valve valve left position oil pocket oil circuit is connected, pressure oil enters the left chamber of hydraulic cylinder 10, hydraulic piston is moved right, when moving to after upper limit buting iron 14 contacts with right lateral journey reversing switch 16 ', the power-off of 2YA electromagnet, 1YA electromagnet is energized, start the do action of a new round, thus, realize the reciprocal shaping work grinding of grinding machine.
When after grinding machine work a period of time, when needing to carry out reconditioning to emery wheel, by digital control system, 1YA and 3YA electromagnet is energized simultaneously, at this moment: hydraulic pilot valve 19.3 is moved to the left, this valve right position oil pocket oil circuit is connected, under hydraulic action overcomes the promotion of 3-position 4-way main valve 19.1 spring force, 3-position 4-way main valve 19.1 is moved to the left, hydraulic pilot valve valve right position oil pocket oil circuit is connected, simultaneously, two position, three-way electromagnetic change valve 21 is also moved to the left, the left oil pocket of this valve is connected, hydraulic oil enters the left chamber of hydraulic cylinder 10 by speed governing pressure-reducing valve 22 and check valve 23, promote grinding machine upper table 8 by piston to be moved to the left, till upper limit buting iron 14 with the mutual dieback of left lateral journey reversing switch 16, can guarantee that upper table stop place precision is higher like this.When grinding machine carries out emery wheel reconditioning, mobile for preventing upper table 8 from producing, need by upper limit buting iron 14 and the mutual dieback of left lateral journey reversing switch 16, upper table 8 is fastened on position that lower table 9 limits, in order to prevent hydraulic system pressure too large, translational speed is too fast, damage grinding machine, by adjustment speed governing pressure-reducing valve 22, underspeed and hydraulic system pressure during to ensure that upper table 8 enters emery wheel reconditioning state, reduce the inertia impact of upper 8 and lower table 9, guarantee that upper limit buting iron 14 is fixed with the interaction of left lateral journey reversing switch 16, moment is moderate reliable again.3-position 4-way main valve 19.1 adopts bit function in " O " type, and when spool is in meta, about hydraulic cylinder, the hydraulic oil in two chambeies is shut, and upper table 8 is braked.Set return overflow valve 24 is return oil pressure valve, in order to slow down the seating velocity of hydraulic cylinder and to improve rigidity and the stability of hydraulic circuit.System overflow valve 26 is for adjusting hydraulic system working pressure during grinding machine work.
Claims (2)
1. can the accurate composite molding surface grinding machine of trimming wheel, it is characterized in that, comprise lathe bed (17), be installed on column (13) on lathe bed and lower table (9); The bistrique (2) that column is provided with longitudinal leadscrew (7) and longitudinal leadscrew driving mechanism (4), can be moved up and down by longitudinal screw mandrel effect, the front end of bistrique is provided with emery wheel (1); The bottom of lower table (9) is connected with the horizontal leading screw (12) and horizontal screw drive mechanism (11) that drive lower table movable; Lower table is provided with the upper table (8) for installing diamond pen (3) and grinding work piece (18), and upper table (8) bottom is provided with the fixed dual-rod hydraulic cylinder of cylinder body (10) controlling upper table side-to-side movement; Be respectively arranged with left lateral journey reversing switch (16) and right lateral journey reversing switch (16 ') of restriction grinding work piece length direction reciprocating stroke relative position on the end face both sides of lower table (9), be also provided with lower limit buting iron (15) outward at left lateral journey reversing switch (16); Upper table (8) bottom is provided with upper limit buting iron (14).
2. as claimed in claim 1 can the hydraulic control system of accurate composite molding surface grinding machine of trimming wheel, it is characterized in that, include promote hydraulic cylinder (10) reciprocating 3-position 4-way electro-hydraulic reversing valve (19), motor (29) and drive hydraulic pump (30), fuel tank (25), filter (31), stop valve (27), Pressure gauge (28), the return overflow valve (24) slowing down hydraulic cylinder seating velocity, the work of adjustment grinding machine time hydraulic system working pressure system overflow valve (26); 3-position 4-way electro-hydraulic reversing valve (19) by adopt spring centered be communicated with the fixed dual-rod hydraulic cylinder of cylinder body (10) left and right oil pocket 3-position 4-way main valve (19.1), be installed on two one-way throttle valves (19.2) of slowed down main valve reversing impact about 3-position 4-way main valve oil circuit respectively, hydraulic pilot valve (19.3) three part of 3-position 4-way forms; The oil circuit leading to hydraulic cylinder (10) oil pocket at 3-position 4-way main valve (19.1) is also provided with and can be communicated with the two position, three-way electromagnetic change valve (21) of hydraulic cylinder (10) left and right oil pocket and the speed governing pressure-reducing valve (22) of parallel connection, speed governing pressure-reducing valve (22) is in series with check valve (23); Flow speed control valve (20) is provided with between hydraulic pump and 3-position 4-way electro-hydraulic reversing valve (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210416268.4A CN102909621B (en) | 2012-10-26 | 2012-10-26 | Precise composite molding plane grinding machine capable of trimming grinding wheel and hydraulic control system of plane grinding machine |
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| CN201210416268.4A CN102909621B (en) | 2012-10-26 | 2012-10-26 | Precise composite molding plane grinding machine capable of trimming grinding wheel and hydraulic control system of plane grinding machine |
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| CN102909621B true CN102909621B (en) | 2015-06-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104044077A (en) * | 2013-03-15 | 2014-09-17 | 昆山齐升磨料磨具有限公司 | Novel surface grinder |
| CN103707181B (en) * | 2013-12-14 | 2016-05-11 | 天水星火机床有限责任公司 | Numerical control axle grinding machine feed system |
| CN103949930A (en) * | 2014-03-20 | 2014-07-30 | 泉州利达机器有限公司 | Hydraulic numerical control powerful feeding mechanism |
| CN104149032B (en) * | 2014-08-08 | 2016-08-24 | 无锡机床股份有限公司 | A kind of crushing structure of centerless grinder |
| CN106625096A (en) * | 2016-12-19 | 2017-05-10 | 新乡市振英机械设备有限公司 | Screen frame welding seam grinding tool for spin-vibration screen |
| CN109986468B (en) * | 2017-12-29 | 2024-05-17 | 上海伦联机电设备有限公司 | Knife sharpening control system and method |
| CN108789044B (en) * | 2018-06-25 | 2020-08-14 | 泾县凡泽科技服务有限公司 | Aluminum alloy ex-trusions recess grinding device |
| CN109940483A (en) * | 2019-03-14 | 2019-06-28 | 浙江固本精密机械有限公司 | A kind of four sides right angle grinders and its control method |
| CN110360175A (en) * | 2019-07-25 | 2019-10-22 | 江苏建筑职业技术学院 | A kind of Hydraulic Power Transmission System of small plane grinding machine working platform |
| CN110405561B (en) * | 2019-08-29 | 2024-04-26 | 四川省川磨岷机联合数控机器股份有限公司 | Hydraulic feeding type horizontal axis rectangular table surface grinder |
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| US3553893A (en) * | 1968-02-28 | 1971-01-12 | Lindner Gmbh Herbert | Method and apparatus for dressing grinding wheels |
| CN101543969B (en) * | 2009-05-08 | 2010-09-08 | 成都工具研究所 | Hydraulic cylinder speed control system on surface grinder workbench |
| CN101961847A (en) * | 2010-08-31 | 2011-02-02 | 大丰市远大机床有限公司 | Hydraulic drive system of small surface grinder bench |
| CN101983839A (en) * | 2010-11-30 | 2011-03-09 | 襄樊市博亚机械有限公司 | Numerically controlled grinder |
| CN201982393U (en) * | 2011-03-10 | 2011-09-21 | 北京航天动力研究所 | Shock-absorbing electro-hydraulic reversing valve |
| CN202862004U (en) * | 2012-10-26 | 2013-04-10 | 云南省机械研究设计院 | Precise composite molding surface grinder capable of trimming sand wheel and hydraulic control system thereof |
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