CN208414627U - A kind of directional solidification precision casting furnace automatic control crystal pulling apparatus - Google Patents
A kind of directional solidification precision casting furnace automatic control crystal pulling apparatus Download PDFInfo
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- CN208414627U CN208414627U CN201820994621.XU CN201820994621U CN208414627U CN 208414627 U CN208414627 U CN 208414627U CN 201820994621 U CN201820994621 U CN 201820994621U CN 208414627 U CN208414627 U CN 208414627U
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- elevating lever
- ingot casting
- guide rail
- servo motor
- straight trip
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Abstract
The utility model relates to a kind of directional solidification precision casting furnaces to automatically control crystal pulling apparatus.Mainly solve the technical issues of elevating lever is unable to accurately control.A kind of the technical solution of the utility model are as follows: directional solidification precision casting furnace automatic control crystal pulling apparatus, it is characterized in that: including ingot casting room, elevating lever, straight trip guide rail, servo motor and servo-driver, ingot casting room side is equipped with fire door, ingot casting room is fixed in grade level by ingot mould supporting leg, the elevating lever upper surface is placed in ingot casting room, elevating lever and ingot casting room junction are equipped with seal sleeve, aqueous cold plate is installed in elevating lever upper surface, putamina needed for the aqueous cold plate disk is placed with production casting, elevating lever is mounted on straight trip guide rail by ball screw, the straight trip guide rail lower end is fixedly installed in melt pit, straight trip guide rail side is installed on support frame, described servo motor one end is fixed on support frame, pass through speed reducer, shaft coupling is connect with ball screw, the servo motor other end is connected by cable Servo-driver.
Description
Technical field
The utility model relates to three Room vacuum precision foundry furnace directional solidification technique fields, and in particular to a kind of directional solidification
Hot investment casting furnace automatically controls crystal pulling apparatus.
Background technique
Directional solidification refers in process of setting using compulsive means, makes solid-liquid circle of the casting in entire process of setting
Hot-fluid on face should keep spreading from a direction, i.e. oriented heat dissipating, while positive temperature must be maintained in crystallization front region
Gradient provides the temperature gradient on single direction during metallic crystal, eliminates in crystallization process to prevent new nucleus from being formed
The transverse grain boundaries of generation significantly improve the ability to work of casting at high temperature, grow crystal along this direction as far as possible, make to cast
Part has the column crystal or single crystal organization structure of single direction.
Directional solidification is a technology being of great significance in casting, it is mainly for the manufacture of gas turbine hot-end component
High temperature alloy part, the especially turbo blade of aerospace engine.This kind of blade working is in bearing temperature highest, stress
Under most complicated, the worst environment of environment, it is considered as most important part in engine critical material.The property of turbine rotor blade
The horizontal especially temperature capability of energy is the important symbol of aero-engine performance, and directional solidification casting is exactly to improve engine whirlpool
Impeller blade temperature capability and the advanced technology occurred, application significantly improve the performance level of alloy, and monocrystalline/orientation
The casting of hot investment casting furnace production can satisfy such casting very excellent mechanical performance under the working environment of very high temperature,
The process of setting of strict control metal is needed in casting process.
Directional solidification precision casting furnace is to be melted using the principle of electromagnetic induction and heating effect of current to material in crucible
Refining, and the equipment that casting crystallographic orientation is smelted is realized by holding furnace heat preservation and control pulling rate etc..The casting of directional solidification precision
Furnace is made using three Room vacuum structures, including working chamber, ingot casting room, feed compartment.Crucible completion base material metal passes through sense in working chamber
It answers coil heats to be fused into the uniform and pure liquid metal of ingredient, the putamina for being preheated to certain temperature is passed through into liter in ingot casting room
Descending mechanism, which send to working chamber to be preheated to, requires temperature, in crucible will there is certain degree of superheat liquid metal to be poured into working chamber
Certain temperature requirement is maintained in putamina in holding furnace, realizes that the directional solidification of casting crystallizes by crystal pulling mechanism.
Meet above-mentioned directional solidification requirement, high request is proposed to the crystal pulling mechanism of directional solidification precision casting furnace, it is existing
Have in technology and realize that pull rod is gone up and down in such a way that gear engages, electrode at a slow speed and quick electrode is cooperated to realize the speed liter of pull rod
Drop, the device is complicated for a whole set of ingot pulling mechanism, and mobile by gear conjugate control pull rod, and precision is low, and process stability is poor, in this way meeting
The deviation of casting process can not be adjusted, also not can guarantee temperature gradient in process of setting, so as to cause same base material melting casting
Made of metal material physical instability, casting lumber recovery is low, high rejection rate, while also improving being produced into for producer
This.
Summary of the invention
The purpose of this utility model is to overcome providing in place of above-mentioned the deficiencies in the prior art, a kind of directional solidification is accurate
Foundry furnace automatically controls crystal pulling apparatus, which mainly solves following technical problems: 1. realizing that crystal pulling is accurate and elevating lever is smooth
Lifting；2. realizing remote auto control elevating lever speed, it is ensured that processing quality；3. simplify equipment, it can be with by servo motor
Realize that elevating lever is gone up and down with the speed interval of 0.2-2000mm/min.
The technical solution of the utility model includes: a kind of directional solidification precision casting furnace automatically controls crystal pulling apparatus, it is characterized in that:
Fire door, ingot casting are installed including ingot casting room, elevating lever, straight trip guide rail, servo motor and servo-driver, ingot casting room side
Room is fixed in grade level by ingot mould supporting leg, and the elevating lever upper surface is placed in ingot casting room, elevating lever and ingot casting room
Dynamic sealing between ingot casting room and elevating lever is realized equipped with seal sleeve in junction, is equipped with aqueous cold plate in elevating lever upper surface, described
Putamina needed for aqueous cold plate disk is placed with production casting, elevating lever are mounted on straight trip guide rail by ball screw, described straight
Row guide rail lower end is fixedly installed in melt pit, and straight trip guide rail side is installed on support frame, and branch is fixed in described servo motor one end
It on support, is connect by gear reducer, shaft coupling with ball screw, drives ball screw rotation, realize elevating lever in vertical direction
On fast, slow movement；The servo motor other end connects servo-driver by cable.
The lifting speed of the elevating lever is 0.2-2000mm/min.
The servo-driver is sequentially connected with PLC controller, man-machine interface, and the man-machine interface is used to input speed
Degree, location parameter and the real-time lifting speed of display and location information, the PLC controller are made by man-machine interface parameter setting
PLC controller controls servo motor and realizes automatic lifting.
The beneficial effects of the utility model are:
(1) a kind of directional solidification precision casting furnace automatically controls crystal pulling apparatus equipped with servo motor and speed reducer, this is arranged
Standby to can be realized simultaneously the quick of elevating lever and go up and down at a slow speed, the lifting speed of lifting may be implemented in servo motor cooperation ball screw
Degree is that the section 0.2-2000mm/min is gone up and down, and accurately controls pulling rate, and device structure is simple, goes up and down high-efficient；
(2) a kind of directional solidification precision casting furnace automatically controls crystal pulling apparatus equipped with straight trip guide rail, makes elevating lever along vertical
Direction is mobile, preferably guarantees the stability of crystal pulling process, avoids the occurrence of horizontal jitter, elevating lever is smoothly gone up and down, it is ensured that equipment
Stabilization reliable for operation；
(3) a kind of directional solidification precision casting furnace automatically controls crystal pulling apparatus and uses based on PLC controller, servo controller
The automatic control system constituted with man-machine interface, setting speed, location parameter in man-machine interface, shows real-time speed and position
The preservation, printing and inquiry of historical data may be implemented in information, easy to operate, easily controllable, preferably improves product quality.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the enlarged drawing (magnification ratio 5:1) of the position I in Fig. 1.
Fig. 3 is the utility model control schematic diagram.
In figure: 1- ingot mould room, 2- putamina, 3- aqueous cold plate, 4- ingot mould supporting leg, 5- grade level, 6- melt pit, 7- lifting
Bar, 8- seal sleeve, 9- servo motor, 10- speed reducer, 11- shaft coupling, 12- straight trip guide rail, 13- ball-screw, 14- support
Frame, 15- fire door, 16- cable, 17- servo-driver, 18-PLC controller, 19- man-machine interface.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, a part of the embodiment of the described only the utility model of the present embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Referring to FIG. 1, FIG. 2 and FIG. 3, a kind of directional solidification precision casting furnace automatic control crystal pulling apparatus, including ingot casting room 1,
Elevating lever 7, straight trip guide rail 11, servo motor 9 and servo-driver 17,1 side of ingot casting room are equipped with fire door 15, pass through ingot mould branch
Support leg 4 is fixed in grade level 5, and 7 upper surface of elevating lever is placed in ingot casting room 1, and ingot casting is realized equipped with seal sleeve 8 in junction
Dynamic sealing between room and elevating lever is equipped with aqueous cold plate 3 in 7 upper surface of elevating lever, and 3 disk of aqueous cold plate is placed with needed for production casting
Putamina 2, elevating lever 7 by ball screw 13 operation is mounted on straight trip guide rail 12 on, straight trip 12 lower end of guide rail be fixedly installed in
Melt pit 6, side are installed on support frame 14, drive ball screw 13 to rotate by shaft coupling 11, realize elevating lever 7 in Vertical Square
Upward fast, slow movement；9 one end of servo motor is fixed on support frame 14, and speed reducer 10, shaft coupling 11 and ball screw are passed through
13 connections, the other end connect servo-driver (the MSK series of simultaneous servo motor of German Rexroth company) by cable 16
17, the lifting speed of elevating lever 7 is 1.0mm/min；
Servo-driver 17 and 18, people PLC controller (the 5570 series CPU of Control Logic of American AB company)
Machine interface 19 is sequentially connected, and man-machine interface 19 is used to input speed, location parameter and the real-time lifting speed of display and location information,
PLC controller 18 makes PLC controller control servo motor 9 and realizes automatic lifting by 19 parameter setting of man-machine interface.
The material of melting will be needed to be packed into melting kettle first, startup power supply, recirculated water is opened, and working chamber is taken out true
Ingot casting room 1 is vacuumized 10Pa by sky to 4.2Pa, energization melting materialss, opens the fire door 15 of ingot casting room 1, and installation putamina 2 is placed
On aqueous cold plate 3, the isolating valve between connection working chamber and ingot casting room is opened, inputs rapid increase speed in man-machine interface 19 at this time
1500mm/min, 19 signal of man-machine interface are transmitted to servo motor 9, and servo electricity 9 drives speed reducer 10, shaft coupling 11 and ball wire
Bar 13 makes elevating lever 7 that aqueous cold plate 3 be driven to be raised above with 1500mm/min until predetermined position, servo motor 9 slow down until stopping
Only, putamina 2 is placed in holding furnace at this time, soaking time 20min, and 1480 DEG C of putamina holding temperature, to molten steel body in melting kettle
Temperature reaches 1580 DEG C, starts to be poured, duration of pouring 3.1min, casting complete, stands 5.5min after putamina injection molten metal, opens
Dynamic servo motor 9, ball screw 13 drive elevating lever 7 to decline with the speed of 10mm/min, and elevating lever 7 drives aqueous cold plate 3 simultaneously
Declined with the speed of 10mm/min, after material solidifies completely, stops servo motor 9 and rotate, fire door 15 is opened, material is taken
Out, operation is completed.
Claims (2)
1. a kind of directional solidification precision casting furnace automatically controls crystal pulling apparatus, it is characterized in that: including ingot casting room, elevating lever, straight trip
Guide rail, servo motor and servo-driver, ingot casting room side are equipped with fire door, and ingot casting room is fixed on by ingot mould supporting leg
In grade level, the elevating lever upper surface is placed in ingot casting room, and elevating lever and ingot casting room junction are realized equipped with seal sleeve
Dynamic sealing between ingot casting room and elevating lever is equipped with aqueous cold plate in elevating lever upper surface, and the aqueous cold plate disk is placed with production casting
Putamina needed for part, elevating lever are mounted on straight trip guide rail by ball screw, and the straight trip guide rail lower end is fixedly installed in ground
Hole, straight trip guide rail side are installed on support frame, and described servo motor one end is fixed on support frame, and speed reducer, shaft coupling are passed through
Device is connect with ball screw, drives ball screw rotation, realizes fast, the slow movement of elevating lever in vertical direction；Servo motor
The other end connects servo-driver by cable.
2. a kind of directional solidification precision casting furnace according to claim 1 automatically controls crystal pulling apparatus, it is characterized in that: described
Servo-driver be also sequentially connected with PLC controller, man-machine interface, the man-machine interface be used to input speed, location parameter
And the real-time lifting speed of display and location information, the PLC controller make PLC controller control by man-machine interface parameter setting
Servo motor realizes automatic lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820994621.XU CN208414627U (en) | 2018-06-27 | 2018-06-27 | A kind of directional solidification precision casting furnace automatic control crystal pulling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820994621.XU CN208414627U (en) | 2018-06-27 | 2018-06-27 | A kind of directional solidification precision casting furnace automatic control crystal pulling apparatus |
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| Publication Number | Publication Date |
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| CN208414627U true CN208414627U (en) | 2019-01-22 |
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|---|---|---|---|
| CN201820994621.XU Active CN208414627U (en) | 2018-06-27 | 2018-06-27 | A kind of directional solidification precision casting furnace automatic control crystal pulling apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158147A (en) * | 2019-06-21 | 2019-08-23 | 合智熔炼装备（上海）有限公司 | A kind of monocrystalline orientation hot investment casting furnace automatic heat preserving cover board arrangement |
-
2018
- 2018-06-27 CN CN201820994621.XU patent/CN208414627U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158147A (en) * | 2019-06-21 | 2019-08-23 | 合智熔炼装备（上海）有限公司 | A kind of monocrystalline orientation hot investment casting furnace automatic heat preserving cover board arrangement |
| CN110158147B (en) * | 2019-06-21 | 2023-10-03 | 合智熔炼装备（上海）有限公司 | Automatic heat preservation cover plate device of single crystal directional precision casting furnace |
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