CN204747497U - Under push up formula magnetic material wet -type shaping hydraulic press - Google Patents
Under push up formula magnetic material wet -type shaping hydraulic press Download PDFInfo
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- CN204747497U CN204747497U CN201520575733.8U CN201520575733U CN204747497U CN 204747497 U CN204747497 U CN 204747497U CN 201520575733 U CN201520575733 U CN 201520575733U CN 204747497 U CN204747497 U CN 204747497U
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Abstract
The utility model discloses an under push up formula magnetic material wet -type shaping hydraulic press belongs to magnetic material wet -type shaping field. It suppresses the structure including lower formula, still includes mechanical limit structure, filler structure, gets the base system, double oil cylinder balanced system and die surface cleaning system, wherein, lower formula suppression structure includes upper die base, ejector pin, big cylinder diameter hydro -cylinder, fixed die carrier and lower mould pneumatic cylinder, and the upper die base lies in fixed die carrier by big cylinder diameter oil cylinder drive, ejector pin, and fixed die carrier is connected with the lower mould pneumatic cylinder, and big cylinder diameter hydro -cylinder and lower mould pneumatic cylinder are all stood with hydraulic pressure and is fed through, machinery limit structure includes horizontal mechanical limit structure and vertical mechanical limit structure, and horizontal mechanical limit structure includes and ejector pin and fixed die carrier are equipped with fixed die cavity in the fixed die carrier that the ejector pin lies in in the fixed die cavity of fixed die carrier, vertical mechanical limit structure includes servo motor A and drive mechanism, its moulded product error is little, has eliminated the pollution sources of ground paste to hydraulic oil.
Description
Technical field
The invention belongs to hydraulic press field, particularly relate to a kind of lower top type magnetic material wet forming hydraulic press.
Background technology
Along with industrial expansion, China has become magnetic materials production big country, the making of magnetic material needs the preparation of hydrous slurry, Wet-pressing molding, sintering, mill processing, go-on-go, several large operation of packaging, Wet-pressing molding is the operation of most critical in all process steps, so wet-press enjoys manufacturing enterprise to pay close attention to.The domestic pressing process generally used is that upper pressure is floating type, the state in the compressing process of slip, constrains that product magnetic property is the highest can only reach 9 grades.Upper cylinder compressing mold cavity floats downwards, and lower die head maintains static, and forces die cavity volume reducing, the moisture in permanent magnetism slip is extruded and shaping.But this floating type Wet-pressing molding hydraulic press, when die cavity float press down time, hydrous slurry and material particles move downward, moisture then is upwards walked to be extruded out, and the trend of moisture and the direction of motion of material particles are just in time contrary, and when magnetic shoe shape green compact are shaping in addition, outer arc surface first reaches density, moisture is passed through its outer arc high-density layer, except molding time is long, and easily cause the defects such as blank crackle when what is more important moisture passes through outer arc by force, make green compact of poor quality.Meanwhile, because die cavity floats, be difficult to the work loading height accurately controlling slip in die cavity, shaping green compact thickness deviation is comparatively large, and uniformity is poor.
Due to the floating type shaping characteristic of upper pressure, make the green compact thickness error after formed product be greater than 0.50 millimeter, add the workload of later process, cause raw-material waste simultaneously.There is suppression process time length, waste of material, product size precision is low, of poor quality, equipment loss rate is large, power consumption is large.External similar Hydraulic press product existing problems: a, operating pressure are greater than 31MPa, and under limiting condition, equipment component loss is large, cannot normally reach standard press power; B, filling system design defect, cause raw material slip to infilter hydraulic oil, thus injury device; C, to get base system be reductor chain structure, and position error is large, during production small sized product, because position deviation and generating routine chain rupture, can not normally produce; Without balance sysmte when d, product are deviate from, produce finished product bias voltage and damage; E, die face cleaning hydraulic-driven, power reaches 22KW, and electricity consumption waste is serious.Therefore a kind of new method is needed to solve the problem.
Chinese utility model patent, publication number: CN203031726U, publication date: 2013.07.03, discloses a kind of lower top type permanent magnetism Wet-pressing molding hydraulic press, comprises main frame, pumping plant, filling system and electrical control cabinet; Electrical control cabinet is electrically connected with main frame, pumping plant, filling system, and pumping plant is connected with main frame and filling system, and filling system is connected with main frame; Main frame comprises pressure-bearing oil cylinder, oil cylinder and mould are stretched in top, and described mould is located at pressure-bearing oil cylinder and top is stretched between oil cylinder, and described pressure-bearing oil cylinder is arranged on the top that oil cylinder is stretched on top.In shaping, the direction that material movement and moisture are extruded is identical, magnetic shoe product inner arcuate surface first reaches density, outer arc finally reaches pressed density, moisture is extruded and is passed through easily, therefore molding time reduces, and the simultaneously corresponding minimizing of defect such as product blank crackle, the quality that blank is produced and efficiency significantly improve.Its weak point is: 1) pressure-bearing oil cylinder is motionless, when can cause matched moulds, cannot accurately locate and lead; 2) not having the mechanical position limitation of accurate vertical and horizontal, there is deviation in longtime running, can not discover in time, cannot realize accurately controlling the automation of blank; 3) this invention solve only the problem controlling green compact precision, for getting base and material feeding not too much description.
Summary of the invention
1. invent the technical problem that will solve
Magnetic grade for prior art is limited, equipment component loss is large, finished product bias voltage damages, the problem of electricity consumption waste, the invention provides a kind of lower top type magnetic material wet forming hydraulic press, it can improve magnetic product grade, reduces the equipment component proportion of goods damageds, eliminate the problem that finished product bias voltage damages, save electricity consumption.
2. technical scheme
For solving the problem, technical scheme provided by the invention is:
A kind of lower top type magnetic material wet forming hydraulic press, comprise lower top type pressing structure, it is characterized in that, it also comprises mechanical limit structure, filling system, gets base system, two oil cylinder balance sysmte, die face purging system, automatic fault detection system and fog recovery structure; Wherein, described lower top type pressing structure is disposed with upper bolster, patrix and fixing mould bases from top to bottom, and described upper bolster is all communicated with Hydraulic Station with fixing mould bases;
Described mechanical limit structure comprises horizontal mechanical limit structure and longitudinal mechanical limit structure, horizontal mechanical limit structure comprises push rod and fixing mould bases, fixing die cavity is provided with in fixing mould bases, fixing mould bases fixes die cavity exactly, blank belongs to powdery state when not shaping, must be undertaken shaping by mould, if extruded in the plane, blank just can not be shaping, in fixing cavity, only carry out compacting could be shaping, and the surrounding of cavity is fixing size, so just mechanical position limitation is carried out to the lateral attitude of blank; Push rod is positioned in the fixing die cavity of fixed die frame; Longitudinal mechanical limit structure comprises electric control system, servomotor A, transmission mechanism and fixing mould bases; Electric control system and servomotor A are electrically connected, and servomotor A is connected with transmission mechanism, and transmission mechanism is fixedly connected with fixing mould bases;
Described base system of getting comprises electric control system, servo motor B, transmission mechanism A and charging-erasing magnetic blank taking device; Wherein electric control system and servo motor B electrical connection, servo motor B is connected with transmission mechanism A, and transmission mechanism A is connected with charging-erasing magnetic blank taking device;
Described die face purging system comprises PLC, micromachine, transmission mechanism B, rotating wash bowl, scraper plate and automatic coating releasing agent device; Wherein, PLC, micromachine and transmission mechanism B are electrically connected successively, and transmission mechanism B is connected with rotating wash bowl, and rotating wash bowl is provided with scraper plate, and micromachine is electrically connected with automatic coating releasing agent device;
Described automatic fault detection system comprises and exports the disturbance of analog quantity, sensor, A/D module, I/O module, decoder, alarm lamp, touch-screen, PLC, amplifier and executing agency; Export the disturbance of analog quantity, sensor, A/D module, I/O module and decoder to be electrically connected successively, the output of decoder is connected with alarm lamp and touch-screen respectively, and touch-screen, PLC, amplifier are connected successively with executing agency.
Preferably, described transmission mechanism comprises worm screw, turbine and external screw thread post rod mechanism, wherein, servomotor A is connected with worm screw, worm screw and turbine engagement, turbine upper surface coordinates with externally threaded external screw thread post rod mechanism with internal thread, and external screw thread post rod mechanism is fixedly connected with fixing mould bases.
Preferably, automatic filter cloth machine comprises driven pulley, driven pulley clamp system, driving wheel, driving wheel clamp system and filter paper, driven pulley is connected by filter paper with driven pulley clamp system, filter paper on driven pulley clamp system passes between patrix and fixing mould bases, be connected with driving wheel clamp system, driving wheel clamp system is connected by filter paper with driving wheel.
Preferably, described filling system comprises fines agitator, and fines agitator is connected by conveying pipeline with fixing mould bases, and Hydraulic Station is connected by oil pipe with upper bolster, fixing mould bases oil cylinder.Material chamber and the oil cylinder of fixing design in mould bases are complete parttion simultaneously.
Preferably, described two oil cylinder balance sysmtes comprise upper bolster, patrix, dummy piston bar, and upper bolster and patrix are located by two dummy piston bars and be connected.
Preferably, electric control system is electrically connected successively by touch-screen, PLC and servo-driver and forms.
Preferably, lower top type pressing structure comprises push rod, upper bolster, large-diameter piston rod, patrix, fixing mould bases, Hydraulic Station, ejector rod oil cylinder, the oil cylinder of upper bolster is communicated with Hydraulic Station, large-diameter piston rod is provided with in the oil cylinder of upper bolster, the bottom of large-diameter piston rod is provided with patrix, one deck filter paper is provided with between patrix and fixing mould bases, filter paper is laid by automatic filter cloth machine, filter paper plays a role in filtering, push rod and ejector rod oil cylinder is provided with in fixing mould bases, push rod is located in ejector rod oil cylinder, and ejector rod oil cylinder is communicated with Hydraulic Station;
Preferably, vacuum machine and patrix inner space.Described fog recovery structure comprises safety glass, described hydraulic press is equipped with the device extracting lubricator, and the outside safety glass that adopts is isolated, and extends to safety glass outside by pipe special through safety glass.This whole set of plant equipment adopts safety glass isolation, in time there is lubricator in equipment, lubricator is isolated by safety glass, the device extracting lubricator is equipped with equipment simultaneously, the lubricator of isolation is taken away by special pipeline, then drain, reduce workshop humidity like this and reduce raw aqueous rate.
A using method for lower top type magnetic material wet forming hydraulic press, step is as follows:
A, according to the above build described in a kind of lower top type magnetic material wet forming hydraulic press;
B, location matched moulds: Hydraulic Station provides oil pressure in upper bolster oil cylinder, in-oil cylinder large-diameter piston rod and two dummy piston bars, under the effect of oil pressure by patrix top to fixing mould bases matched moulds;
Upper bolster and patrix are located by two dummy piston bars and are connected, patrix moves up and down by dummy piston bar under the effect of oil pressure, with fixing mould bases matched moulds, straight line is formed in lengthwise position, namely a line principle is determined at 2, it can thus be appreciated that dummy piston bar plays the effect of location and guiding, system balancing can be made in good condition.
C, material feeding: fixing mould bases given by fines agitator injection raw material;
D, lower top type suppression process: Hydraulic Station provides oil pressure to ejector rod oil cylinder, at the effect lower push rod of oil pressure, raw material is extruded from bottom to top, form blank; Can find out that fines agitator and Hydraulic Station belong to two independently divided systems, decrease the pollution sources of slip to hydraulic oil.
E, filtration: when lower top type suppression process prepares, automatic filter cloth machine work, driving wheel rotates, and drive driven pulley to rotate by filter paper, the old filter paper used in the past is rolled on driving wheel, and new filter paper forwards between patrix and fixing mould bases;
F, vacuum are drawn water: in lower top type pressing process, and vacuum machine, by the vacuum pumping of patrix inner cavity, forms draught head like this, and moisture under atmospheric pressure from fixing mould bases to upper mold cavity, then is extracted through piping; It can thus be appreciated that filter paper plays a role in filtering when matched moulds, raw material is prevented to be pumped together with moisture, it is consistent that lower top type suppression process makes material movement and moisture extrude direction, from below to up, molding time is reduced, the defects such as blank crackle reduce, thus product magnetic grade is improved.
G, point die process: Hydraulic Station is pumped in the oil cylinder of upper bolster, and patrix moves up by two dummy piston bars;
H, get base: input instruction signal on the touch-screen of electric control system, touch-screen sends signal to PLC, after PLC processes signal, send servo-driver to, amplifying signal is flowed to servo motor B by servo-driver, and servo motor B drives transmission mechanism A to carry out Stroke Control, when reaching orientation distance, system is immediately out of service, and charging-erasing magnetic blank taking device carries out getting base; When there is error in the stroke distances run, stop getting base, servo motor B feeds back signal to PLC, the signal of correction is passed to servo-driver and is amplified by PLC, then amplifying signal is passed to servo motor B, and servo motor B drives transmission mechanism A to carry out error operation by correcting the signal after amplifying, by charging-erasing magnetic blank taking device, blank is taken away, afterwards blank is successively carried out demagnetization again and magnetized, make the pole orientation arrangement of blank consistent; Namely servo-positioning is got base control system and is belonged to a kind of closed-loop control system, and servo positioning system will get base precision controlling being less than in 0.5mm, can meet all sized products and get base operating mode; Transmission mechanism A belongs to rack pinion, and have and transmit power greatly, efficiency is high, and the life-span is long, stable working, and reliability is high, ensures the features such as constant gearratio.
I, cleaning: after blank is taken away by charging-erasing magnetic blank taking device, PLC signal transmission is to micromachine, micromachine drives the fixing mould bases upper surface of rotating wash bowl cleaning by transmission mechanism B, automatic coating releasing agent device also opens operation simultaneously, namely the place that rotating wash bowl is swept, automatic coating releasing agent device cleans with regard to release agent spraying; When fixing mould bases upper surface occurs that some are difficult to the dirt cleaned, by the scraper plate on rotating wash bowl, dirt is blown off, and then clean;
J, longitudinal mechanical position limitation: belong to a kind of automatic control system, the error that blank occurs is tested by staff and obtains, after staff checks blank to occur error, staff passes through Update Table on the touchscreen, the data of amendment are passed to PLC by touch-screen, after PLC carries out data processing, data are passed to servo-driver and amplifies, after amplification, signal is passed to servomotor A again.Servomotor A drives worm screw and turbine to carry out transmission, and worm screw and turbine belong to worm-drive, and worm screw and turbine are directly connected by their flank engagement; Worm screw is driven by servomotor A, and worm screw is driving link, and turbine is driven member; Worm screw and turbine implement lower mechanical position limitation by screw-driven, turbine upper surface is internal thread, coordinate with turbine upper surface be one with externally threaded external screw thread post rod mechanism, when worm screw takes turbine rotation to, external screw thread post rod mechanism rises or declines, external screw thread post rod mechanism and fixing mould bases are bolted, such external screw thread post rod mechanism and fixing mould bases belong to an entirety, namely external screw thread post rod mechanism rises or declines, fixing mould bases rises or declines, thus achieves longitudinal mechanical position limitation; Make the error-reduction of blank to 0.10mm, thus improve the precision of blank.
K, repeat above step, constantly that magnetic material is compressing, after completing a batch, the hydraulic press described in closedown.
Preferably, in step H, the stroke distances error of operation is that servomotor motor B detects automatically; When lubricator appears in hydraulic press time, lubricator is isolated by safety glass, equipment is equipped with the device extracting lubricator, is taken away by the lubricator of isolation by special pipeline.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following beneficial effect:
(1) by adopt lower top type suppression process, fixing mould bases mechanical position limitation and automatically regulates lower mechanical stop limiter, base control system is got in large-diameter oil cylinder designs, slip and hydraulic oil are separated completely filling system, servo-positioning, high accuracy pair oil cylinder balance sysmte, die face clean miniature electric power actuation techniques scheme, realize respectively product magnetic grade reach 12 grades, green compact thickness error control be less than 0.10mm, operating pressure drops to 26MPa, press power is stablized, oil temperature declines, and element loss rate reduces by 50%;
(2) fixing die cavity is provided with in fixing mould bases, blank belongs to powdery state when not shaping, must be undertaken shaping by mould, if extruded in the plane, blank just can not be shaping, in fixing cavity, only carry out compacting could be shaping, and the surrounding of cavity is fixing size, has so just carried out mechanical position limitation to the lateral attitude of blank; The external screw thread post rod mechanism of transmission mechanism and fixing mould bases belong to an entirety, and namely external screw thread post rod mechanism rises or declines, and fixing mould bases rises or declines, thus achieves longitudinal mechanical position limitation; Make the error-reduction of blank to 0.10mm, the green compact thickness error after formed product controls to be less than 0.10mm, thus improves the precision of blank;
(3) in lower top type pressing process, vacuum machine, by the vacuum pumping of patrix inner cavity, forms draught head like this, and moisture under atmospheric pressure from fixing mould bases to upper mold cavity, then is extracted through piping; It can thus be appreciated that filter paper plays a role in filtering when matched moulds, raw material is prevented to be pumped together with moisture, it is consistent that lower top type suppression process makes material movement and moisture extrude direction, from below to up, molding time is reduced, the defects such as blank crackle reduce, thus product magnetic grade is improved;
(4) servo-positioning is got base control system and is belonged to a kind of closed-loop control system, by charging-erasing magnetic blank taking device, blank is taken away, afterwards blank is successively carried out demagnetization again and magnetized, make the pole orientation arrangement of blank consistent, servo positioning system will get base precision controlling being less than in 0.5mm, can meet all sized products and get base operating mode;
(5) transmission mechanism A belongs to rack pinion, and have and transmit power greatly, efficiency is high, and the life-span is long, stable working, and reliability is high, ensures the features such as constant gearratio
(6) upper bolster and patrix are located by two dummy piston bars and are connected, patrix moves up and down by dummy piston bar under the effect of oil pressure, with fixing mould bases matched moulds, straight line is formed in lengthwise position, namely determine a line principle at 2, it can thus be appreciated that dummy piston bar plays the effect of location and guiding, system balancing can be made in good condition, two oil cylinder balance position error is less than 0.1 millimeter, and finished product bias voltage damaged condition is eliminated;
(7) the micromachine driving power 0.75kW of die face purging system of the present invention, stabilization of speed, impacts little, failure rate is low, can realize the lasting automation steady operation of hydraulic press; When fixing mould bases upper surface occurs that some are difficult to the dirt cleaned, by the scraper plate on rotating wash bowl, dirt is blown off, and then clean; Can realize cleaning the automation of the die face of hydraulic press, waste time and energy when avoiding manual cleaning;
(8) fog recovery structure comprises safety glass, described hydraulic press is equipped with the device extracting lubricator, and the outside safety glass that adopts is isolated, and extends to safety glass outside by pipe special through safety glass.This whole set of plant equipment adopts safety glass isolation, in time there is lubricator in equipment, lubricator is isolated by safety glass, the device extracting lubricator is equipped with equipment simultaneously, the lubricator of isolation is taken away by special pipeline, then drain, reduce workshop humidity like this and reduce raw aqueous rate;
(9) Hydraulic Station provides oil pressure to ejector rod oil cylinder, at the effect lower push rod of oil pressure, raw material is extruded from bottom to top, forms blank; Can find out that fines agitator and Hydraulic Station belong to two independently divided systems, material chamber and the oil cylinder of design in fixing mould bases are also complete parttion, decrease the pollution sources of slip to hydraulic oil.
Accompanying drawing explanation
Structure chart when Fig. 1 is hydraulic press matched moulds duty;
Fig. 2 is hydraulic press cut-away view;
Fig. 3 is upper bolster interior view;
Fig. 4 is fixing mould bases interior view;
Fig. 5 is die shoe interior view;
Fig. 6 is hydraulic press left view;
Fig. 7 is automatic fault detection system diagram.
In figure:
1, fines agitator; 2, touch-screen; 3, PLC; 4, servo-driver; 5, driven pulley clamp system; 6, driven pulley; 7, filter paper; 8, patrix; 9, upper bolster; 10, die shoe; 11, fixing mould bases; 12, driving wheel clamp system; 13, driving wheel; 14, Hydraulic Station; 15, vacuum machine; 16, servomotor A; 17, automatic coating releasing agent device; 18, micromachine; 19, transmission mechanism B; 20, rotating wash bowl; 21, scraper plate; 22, transmission mechanism A; 23, servo motor B; 24, to magnetize and demagnetization blank taking device; 25, dummy piston bar; 26, large-diameter piston rod; 27, ejector rod oil cylinder; 28, push rod; 29, worm screw; 30, turbine; 31, external screw thread post rod mechanism; A, touch-screen; B, PLC; C, amplifier; D, executing agency; E, sensor; F, A/D module; G, I/0 module; H, decoder; I, alarm lamp.
Detailed description of the invention
For understanding content of the present invention further, by reference to the accompanying drawings and embodiment the present invention is described in detail.
Embodiment 1
The design is different from the press on market.By adopting lower top type suppression process, fixing mould bases mechanical position limitation regulates lower mechanical stop limiter with automatic, large-diameter oil cylinder designs, the filling system that slip and hydraulic oil are separated completely, base control system is got in servo-positioning, the two oil cylinder balance sysmte of high accuracy, die face cleans miniature electric power actuation techniques scheme, realize product magnetic grade respectively and reach 12 grades, green compact thickness error controls to be less than 0.10mm, operating pressure drops to 26MPa, press power is stablized, oil temperature declines, element loss rate reduces by 50%, eliminate the pollution sources of slip to hydraulic oil, reduce equipment operation failure rate and element fragile rate, decrease hydraulic oil to change, get base system position error and be less than 0.5mm, all sized products can be met and get base operating mode, two oil cylinder balance position error is less than 0.1mm, finished product bias voltage damaged condition is eliminated, die face cleans miniature electric power driving power 0.75kW, and stabilization of speed, impact little.
Composition graphs 1-7, a kind of lower top type magnetic material wet forming hydraulic press, comprise lower top type pressing structure, it also comprise mechanical limit structure, filling system, get base system, two oil cylinder balance sysmte, die face purging system, automatically filter cloth machine, automatic fault detection system and fog recovery structure, wherein, described lower top type pressing structure comprises push rod 28, upper bolster 9, large-diameter piston rod 26, patrix 8, fixing mould bases 11, Hydraulic Station 14, ejector rod oil cylinder 27, the oil cylinder of upper bolster 9 is communicated with Hydraulic Station 14, large-diameter piston rod 26 is provided with in the oil cylinder of upper bolster 9, the bottom of large-diameter piston rod 26 is provided with patrix 8, vacuum machine 15 and patrix 8 inner space, one deck filter paper 7 is provided with between patrix 8 and fixing mould bases 11, filter paper 7 is laid by automatic filter cloth machine, filter paper 7 plays a role in filtering, push rod 28 and ejector rod oil cylinder 27 is provided with in fixing mould bases 11, push rod 28 is located in ejector rod oil cylinder 27, ejector rod oil cylinder 27 is communicated with Hydraulic Station 14,
Automatic filter cloth machine comprises driven pulley 6, driven pulley clamp system 5, driving wheel 13, driving wheel clamp system 12 and filter paper 7, driven pulley 6 is connected by filter paper 7 with driven pulley clamp system 5, filter paper 7 on driven pulley clamp system 5 passes between patrix 8 and fixing mould bases 11, be connected with driving wheel clamp system 12, driving wheel clamp system 12 is connected by filter paper 7 with driving wheel 13.
Described mechanical limit structure comprises horizontal mechanical limit structure and longitudinal mechanical limit structure, horizontal mechanical limit structure comprises push rod 28 and fixing mould bases 11, fixing die cavity is provided with in fixing mould bases 11, fixing mould bases 11 is exactly fixing die cavity, blank belongs to powdery state when not shaping, must be undertaken shaping by mould, if extruded in the plane, blank just can not be shaping, in fixing cavity, only carry out compacting could be shaping, and the surrounding of cavity is fixing size, so just mechanical position limitation is carried out to the lateral attitude of blank; Push rod 28 is positioned in the fixing die cavity of fixing mould bases 11; Longitudinal mechanical limit structure comprises electric control system, servomotor A16, transmission mechanism and fixing mould bases 11; Electric control system and servomotor A16 are electrically connected, and servomotor A6 is connected with transmission mechanism, and transmission mechanism is fixedly connected with fixing mould bases 11;
Electric control system is electrically connected successively by touch-screen 2, PLC3 and servo-driver 4 and forms.
Described transmission mechanism comprises worm screw 29, turbine 30 and external screw thread post rod mechanism 31, wherein, servomotor A16 is connected with worm screw 29, worm screw 29 and turbine 30 engage, turbine 30 upper surface coordinates with externally threaded external screw thread post rod mechanism 31 with internal thread, and external screw thread post rod mechanism 31 is fixedly connected with fixing mould bases 11.
Described base system of getting comprises electric control system, servo motor B 23, transmission mechanism A22 and charging-erasing magnetic blank taking device 24; Wherein electric control system and servo motor B 23 are electrically connected, and servo motor B 23 is connected with transmission mechanism A22, and transmission mechanism A22 is connected with charging-erasing magnetic blank taking device 24;
Described die face purging system comprises PLC3, micromachine 18, transmission mechanism B19, rotating wash bowl 20, scraper plate 21 and automatic coating releasing agent device 17; Wherein, PLC3, micromachine 18 and transmission mechanism B19 are electrically connected successively, and transmission mechanism B19 is connected with rotating wash bowl 20, and rotating wash bowl 20 is provided with scraper plate 21, and micromachine 18 is electrically connected with automatic coating releasing agent device 17;
Described automatic fault detection system comprises and exports the disturbance of analog quantity, sensor E, A/D module F, I/O module G, decoder H, alarm lamp I, touch-screen 2, PLC3, amplifier C and executing agency D; Export the disturbance of analog quantity, sensor E, A/D module F, I/O module G and decoder H to be electrically connected successively, the output of decoder H is connected with alarm lamp I and touch-screen 2 respectively, and touch-screen 2, PLC3, amplifier C are connected successively with executing agency D.
Described two oil cylinder balance sysmtes comprise upper bolster 9, patrix 8, dummy piston bar 25, and upper bolster 9 and patrix 8 are located by two dummy piston bars 25 and be connected.
Described filling system comprises fines agitator 1, and fines agitator 1 is connected by conveying pipeline with fixing mould bases 11, and Hydraulic Station 14 is connected by oil pipe with upper bolster 9, fixing mould bases oil cylinder 26.Material chamber and the oil cylinder of fixing design in mould bases 11 are complete parttion simultaneously.
Described fog recovery structure comprises safety glass, described hydraulic press is equipped with the device extracting lubricator, and the outside safety glass that adopts is isolated, and extends to safety glass outside by pipe special through safety glass.This whole set of plant equipment adopts safety glass isolation, in time there is lubricator in equipment, lubricator is isolated by safety glass, the device extracting lubricator is equipped with equipment simultaneously, the lubricator of isolation is taken away by special pipeline, then drain, reduce workshop humidity like this and reduce raw aqueous rate.
A using method for lower top type magnetic material wet forming hydraulic press, step is as follows:
A, according to described in claim 1 build described in a kind of lower top type magnetic material wet forming hydraulic press;
B, location matched moulds: Hydraulic Station 14 provides oil pressure in upper bolster 9 oil cylinder, in-oil cylinder large-diameter piston rod 26 and two dummy piston bars 25, under the effect of oil pressure, patrix 8 is pushed up to fixing mould bases 11 matched moulds;
Upper bolster 9 and patrix 8 are located by two dummy piston bars 25 and are connected, patrix 8 moves up and down by dummy piston bar 25 under the effect of oil pressure, with fixing mould bases 11 matched moulds, straight line is formed in lengthwise position, namely a line principle is determined at 2, it can thus be appreciated that dummy piston bar 25 plays the effect of location and guiding, system balancing can be made in good condition.
C, material feeding: fines agitator 1 injects raw material to fixing mould bases 11;
D, lower top type suppression process: Hydraulic Station 14 provides oil pressure to ejector rod oil cylinder 27, at the effect lower push rod 28 of oil pressure, raw material is extruded from bottom to top, form blank; Can find out that fines agitator 1 and Hydraulic Station 14 belong to two independently divided systems, decrease the pollution sources of slip to hydraulic oil.
E, filtration: when lower top type suppression process prepares, automatic filter cloth machine work, driving wheel 13 rotates, and drives driven pulley 6 to rotate by filter paper 7, the old filter paper 7 used in the past is rolled on driving wheel 13, and new filter paper 7 forwards between patrix 8 and fixing mould bases 11;
F, vacuum are drawn water: in lower top type pressing process, and vacuum machine 15, by the vacuum pumping of patrix 8 inner cavity, forms draught head like this, and moisture under atmospheric pressure from fixing mould bases 11 to patrix 8 inner chamber, then is extracted through piping; It can thus be appreciated that, in matched moulds pressing process, filter paper 7 plays a role in filtering, raw material is prevented to be pumped together with moisture, it is consistent that lower top type suppression process makes material movement and moisture extrude direction, from below to up, molding time is reduced, and the defects such as blank crackle reduce, thus product magnetic grade is improved.
G, point die process: Hydraulic Station 14 is pumped in the oil cylinder of upper bolster 9, and patrix 8 moves up by two dummy piston bars 25;
H, get base: input instruction signal on the touch-screen 2 of electric control system, touch-screen 2 sends signal to PLC3, after PLC3 processes signal, send servo-driver 4 to, amplifying signal is flowed to servo motor B 23 by servo-driver 4, and servo motor B 23 drives transmission mechanism A22 to carry out Stroke Control, when reaching orientation distance, system is immediately out of service, and charging-erasing magnetic blank taking device 24 carries out getting base; When there is error in the stroke distances run, stop getting base, servo motor B 23 feeds back signal to PLC3, the signal of correction is passed to servo-driver 4 and is amplified by PLC3, then amplifying signal is passed to servo motor B 23, and servo motor B 23 drives transmission mechanism A22 to carry out error operation by correcting the signal after amplifying, by charging-erasing magnetic blank taking device 24, blank is taken away, afterwards blank is successively carried out demagnetization again and magnetized, make the pole orientation arrangement of blank consistent; Namely servo-positioning is got base control system and is belonged to a kind of closed-loop control system, and servo positioning system will get base precision controlling being less than in 0.5mm; Transmission mechanism A22 belongs to rack pinion, and have and transmit power greatly, efficiency is high, and the life-span is long, stable working, and reliability is high, ensures the features such as constant gearratio.The stroke distances error run is that servomotor motor B23 detects automatically; When lubricator appears in hydraulic press time, lubricator is isolated by safety glass, equipment is equipped with the device extracting lubricator, is taken away by the lubricator of isolation by special pipeline.
I, cleaning: after blank is taken away by charging-erasing magnetic blank taking device 24, PLC3 signal transmission is to micromachine 18, and the driving power of micromachine 18 is 0.75kW, and stabilization of speed, impacts little, failure rate is low, can realize the lasting automation steady operation of hydraulic press; Micromachine 18 drives rotating wash bowl 20 to clean fixing mould bases 11 upper surface by transmission mechanism B19, and automatic coating releasing agent device 17 also opens operation, the place that namely rotating wash bowl 20 is swept simultaneously, and automatic coating releasing agent device 17 cleans with regard to release agent spraying; When fixing mould bases 11 upper surface occurs that some are difficult to the dirt cleaned, by the scraper plate 21 on rotating wash bowl 20, dirt is blown off, and then clean; Can realize cleaning the automation of the die face of hydraulic press, waste time and energy when avoiding manual cleaning;
J, longitudinal mechanical position limitation: belong to a kind of automatic control system, the error that blank occurs is tested by staff and obtains, after staff checks blank to occur error, staff is by Update Table on touch-screen 2, the data of amendment are passed to PLC3 by touch-screen 2, after PLC3 carries out data processing, data are passed to servo-driver 4 and amplify, after amplification, signal is passed to servomotor A16 again.Servomotor A16 drives worm screw 29 and turbine 30 to carry out transmission, and worm screw 29 and turbine 30 belong to worm-drive, and worm screw 29 is directly connected by their flank engagement with turbine 30; Worm screw 29 is driven by servomotor A16, and worm screw 29 is driving links, and turbine 30 is driven members; Worm screw 29 and turbine 30 implement lower mechanical position limitation by screw-driven, turbine 30 upper surface is internal thread, coordinate with turbine 30 upper surface be one with externally threaded external screw thread post rod mechanism 31, when worm screw 29 take to turbine 30 rotate time, external screw thread post rod mechanism 31 rises or declines, external screw thread post rod mechanism 31 and fixing mould bases 11 are bolted, such external screw thread post rod mechanism 31 belongs to an entirety with fixing mould bases 11, namely external screw thread post rod mechanism 31 is toward rising or declining, fixing mould bases 11 toward rising or declining, thus achieves longitudinal mechanical position limitation; Make the error-reduction of blank to 0.10mm, thus improve the precision of blank.
K, repeat above step, constantly that magnetic material is compressing, after completing a batch, the hydraulic press described in closedown.
Embodiment 2
The structure of the present embodiment and method with the 2-1 in embodiment 1, Fig. 2 be upper bolster interior view in Fig. 3 reduce figure, 2-2 be fixing mould bases interior view in Fig. 4 reduce figure; 2-3 be die shoe interior view in Fig. 5 reduce figure.
Fig. 7 is the schematic diagram of automatic fault detection system, it can detect the disturbance that the current signal of the pressure of hydraulic press and each performance parameter is subject to, namely export the disturbing signal of analog quantity, signal sends sensor E, A/D module F, I/O module G, decoder H, alarm lamp I, touch-screen 2, PLC3, amplifier C and executing agency D successively to; Touch-screen 2 exports digital quantity, PLC3 inputs digital quantity, and export the disturbance of analog quantity, sensor E, A/D module F, I/O module G and decoder H and be electrically connected successively, the output of decoder H is connected with alarm lamp I and touch-screen 2 respectively, touch-screen 2, PLC3, amplifier C are connected successively with executing agency D, form closed-loop automatic control, automatically regulate, solve fault, this is the principle of fault detect of the present invention, realize Automated condtrol, do not need to drop into too much human cost, saving resource.
Schematically above be described the present invention and embodiment thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (8)
1. a lower top type magnetic material wet forming hydraulic press, comprise lower top type pressing structure, it is characterized in that, it also comprises mechanical limit structure, filling system, gets base system, two oil cylinder balance sysmte, die face purging system, automatic fault detection system and fog recovery structure; Wherein, described lower top type pressing structure is disposed with upper bolster (9), patrix (8) and fixing mould bases (11) from top to bottom, and described upper bolster (9) is all communicated with Hydraulic Station (14) with fixing mould bases (11);
Described mechanical limit structure comprises horizontal mechanical limit structure and longitudinal mechanical limit structure, horizontal mechanical limit structure comprises push rod (28) and fixing mould bases (11), be provided with fixing die cavity in fixing mould bases (11), push rod (28) is positioned in the fixing die cavity of fixing mould bases (11); Longitudinal mechanical limit structure comprises electric control system, servomotor A (16), transmission mechanism and fixing mould bases (11); Electric control system and servomotor A (16) electrical connection, servomotor A (16) is connected with transmission mechanism, and transmission mechanism is fixedly connected with fixing mould bases (11);
Described base system of getting comprises electric control system, servo motor B (23), transmission mechanism A (22) and charging-erasing magnetic blank taking device (24); Wherein electric control system and servo motor B (23) electrical connection, servo motor B (23) is connected with transmission mechanism A (22), and transmission mechanism A (22) is connected with charging-erasing magnetic blank taking device (24);
Described die face purging system comprises PLC (3), micromachine (18), transmission mechanism B (19), rotating wash bowl (20), scraper plate (21) and automatic coating releasing agent device (17); Wherein, PLC (3), micromachine (18) and transmission mechanism B (19) are electrically connected successively, transmission mechanism B (19) is connected with rotating wash bowl (20), rotating wash bowl (20) is provided with scraper plate (21), and micromachine (18) is electrically connected with automatic coating releasing agent device (17);
Described automatic fault detection system comprises and exports the disturbance of analog quantity, sensor (E), A/D module (F), I/O module (G), decoder (H), alarm lamp (I), touch-screen (2), PLC (3), amplifier (C) and executing agency (D); Export the disturbance of analog quantity, sensor (E), A/D module (F), I/O module (G) and decoder (H) to be electrically connected successively, the output of decoder (H) is connected with alarm lamp (I) and touch-screen (2) respectively, and touch-screen (2), PLC (3), amplifier (C) are connected successively with executing agency (D).
2. a kind of lower top type magnetic material wet forming hydraulic press according to claim 1, it is characterized in that, described transmission mechanism comprises worm screw (29), turbine (30) and external screw thread post rod mechanism (31), wherein, servomotor A (16) is connected with worm screw (29), worm screw (29) and turbine (30) engagement, turbine (30) upper surface coordinates with externally threaded external screw thread post rod mechanism (31) with internal thread, and external screw thread post rod mechanism (31) is fixedly connected with fixing mould bases (11).
3. a kind of lower top type magnetic material wet forming hydraulic press according to claim 2, it is characterized in that, automatic filter cloth machine comprises driven pulley (6), driven pulley clamp system (5), driving wheel (13), driving wheel clamp system (12) and filter paper (7), driven pulley (6) is connected by filter paper (7) with driven pulley clamp system (5), filter paper (7) on driven pulley clamp system (5) passes between patrix (8) and fixing mould bases (11), be connected with driving wheel clamp system (12), driving wheel clamp system (12) is connected by filter paper (7) with driving wheel (13).
4. a kind of lower top type magnetic material wet forming hydraulic press according to claim 1, it is characterized in that, described filling system comprises fines agitator (1), fines agitator (1) is connected by conveying pipeline with fixing mould bases (11), Hydraulic Station (14) is connected by oil pipe with upper bolster (9), fixing mould bases oil cylinder (26), and material chamber and the oil cylinder of fixing design in mould bases (11) are complete parttion simultaneously.
5. a kind of lower top type magnetic material wet forming hydraulic press according to claim 4, it is characterized in that, described two oil cylinder balance sysmtes comprise upper bolster (9), patrix (8), dummy piston bar (25), and upper bolster (9) and patrix (8) are located by two dummy piston bars (25) and be connected.
6. a kind of lower top type magnetic material wet forming hydraulic press according to claim 1, is characterized in that, electric control system is electrically connected successively by touch-screen (2), PLC (3) and servo-driver (4) and forms.
7. a kind of lower top type magnetic material wet forming hydraulic press according to claim 1, it is characterized in that, lower top type pressing structure comprises push rod (28), upper bolster (9), large-diameter piston rod (26), patrix (8), fixing mould bases (11), Hydraulic Station (14), ejector rod oil cylinder (27), the oil cylinder of upper bolster (9) is communicated with Hydraulic Station (14), large-diameter piston rod (26) is provided with in the oil cylinder of upper bolster (9), the bottom of large-diameter piston rod (26) is provided with patrix (8), one deck filter paper (7) is provided with between patrix (8) and fixing mould bases (11), push rod (28) and ejector rod oil cylinder (27) is provided with in fixing mould bases (11), push rod (28) is located in ejector rod oil cylinder (27), ejector rod oil cylinder (27) is communicated with Hydraulic Station (14).
8. a kind of lower top type magnetic material wet forming hydraulic press according to claim 1, is characterized in that, vacuum machine (15) and patrix (8) inner space; Described fog recovery structure comprises safety glass, described hydraulic press is equipped with the device extracting lubricator, and the outside safety glass that adopts is isolated, and extends to safety glass outside by pipe special through safety glass.
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| CN201520575733.8U CN204747497U (en) | 2015-08-03 | 2015-08-03 | Under push up formula magnetic material wet -type shaping hydraulic press |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985179A (en) * | 2015-08-03 | 2015-10-21 | 马鞍山齐力机电设备有限公司 | Downward-pushing magnetic material wet forming hydraulic machine and use method thereof |
| CN105600578A (en) * | 2016-02-03 | 2016-05-25 | 马鞍山齐力机电设备有限公司 | Automatic lifting-paper paving device for filter paper of hydraulic machine and use method thereof |
-
2015
- 2015-08-03 CN CN201520575733.8U patent/CN204747497U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985179A (en) * | 2015-08-03 | 2015-10-21 | 马鞍山齐力机电设备有限公司 | Downward-pushing magnetic material wet forming hydraulic machine and use method thereof |
| CN105600578A (en) * | 2016-02-03 | 2016-05-25 | 马鞍山齐力机电设备有限公司 | Automatic lifting-paper paving device for filter paper of hydraulic machine and use method thereof |
| CN105600578B (en) * | 2016-02-03 | 2017-09-12 | 马鞍山齐力机电设备有限公司 | A kind of hydraulic press filter paper automatic lifting-paving paper device and its application method |
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