CN113634746A - Press with floating magnetic field - Google Patents
Press with floating magnetic field Download PDFInfo
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- CN113634746A CN113634746A CN202111103135.7A CN202111103135A CN113634746A CN 113634746 A CN113634746 A CN 113634746A CN 202111103135 A CN202111103135 A CN 202111103135A CN 113634746 A CN113634746 A CN 113634746A
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- electric cylinder
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- magnetic field
- die
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- 238000007667 floating Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 claims description 10
- 238000013461 design Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 46
- 239000006247 magnetic powder Substances 0.000 description 14
- 230000002457 bidirectional effect Effects 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 230000005347 demagnetization Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000000969 carrier Substances 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/42—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by magnetic means, e.g. electromagnetic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
- B22F2003/031—Press-moulding apparatus therefor with punches moving in different directions in different planes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a counter-pressure floating magnetic field press machine which comprises a base (11), wherein a lower beam (10) is fixedly arranged on the base (11), two opposite side plates (2) are symmetrically and fixedly arranged on the lower beam (10), an upper beam (1) is arranged between the tops of the two side plates (2), a pair of polar posts (4) are symmetrically arranged on the two side plates (2), and coil packages (3) are arranged on the polar posts (4); the lower bottom surface of the lower beam (10) is provided with a lower main electric cylinder (27), a lower main electric cylinder piston rod (28) of the lower main electric cylinder (27) penetrates through the lower beam (10) and then is connected with a lower movable mould frame (29), and a lower punch (30) is arranged on the lower movable mould frame (29). The invention has reasonable design, is the best substitute of a hydraulic system press and has good practical application value.
Description
Technical Field
The invention relates to the technical field of magnetic powder forming equipment, in particular to a press machine with a counter-pressure floating magnetic field, which is formed by pressing through an electric cylinder control system and belongs to high-precision and high-quality rare earth permanent magnet machine, electricity and instrument integrated processing equipment.
Background
Most of the existing magnetic powder presses are hydraulic presses, and have the defects of high cost, low efficiency and difficult maintenance, the precision and the density of products pressed by rare earth magnetic powder are low, and the pressed products need to be pressed by a secondary isostatic press, so that the realization of forming automation is not facilitated.
Disclosure of Invention
Based on the problems of the existing magnetic powder press, the invention aims to provide a novel opposite-pressure floating magnetic field press.
The invention is realized by adopting the following technical scheme:
the utility model provides a to pressing floating magnetic field press, includes the base, fixed mounting has the underbeam on the base, symmetrical fixed mounting has just right two curb plates on the underbeam, installs the roof beam between two curb plate tops, and a pair of utmost point post of symmetry installation on two curb plates, be equipped with the solenoid on the utmost point post. A lower main electric cylinder is installed on the lower bottom surface of the lower beam, a lower main electric cylinder piston rod of the lower main electric cylinder penetrates through the lower beam and then the end part of the lower main electric cylinder piston rod is connected with a lower movable die frame, and a lower punch is arranged on the lower movable die frame; a movable electric cylinder is installed on the lower bottom surface of the lower beam, a piston rod of the movable electric cylinder sequentially penetrates through the lower beam and the lower movable die frame, the end part of the piston rod of the movable electric cylinder is connected with a movable die frame, a die holder is installed on the movable die frame, a female die is installed on the die holder and located between a pair of polar posts, and the upper part of a lower punch is matched with and extends into the female die; the upper bottom surface of the upper beam is provided with an upper main electric cylinder, an upper electric cylinder piston rod of the upper main electric cylinder penetrates through the upper beam and then is connected with an upper movable die frame, the bottom surface of the upper movable die frame is provided with an upper punch, and the lower part of the upper punch is matched with and extends into the female die.
When the pair of pressing floating magnetic field presses works specifically, when a product is manufactured, various pressing modes such as unidirectional pressing, bidirectional pressing, floating pressing, composite pressing and the like can be realized.
When unidirectional pressing is adopted, the movable electric cylinder acts, a piston rod of the movable electric cylinder moves upwards, and the female die is positioned to a specified position through the movable die carrier and the die holder; the lower main cylinder acts, a piston rod of the lower main cylinder moves upwards to pass through the lower movable die frame, and the lower punch is positioned to a specified position (the lower punch is inserted into the female die in a matching way to serve as the bottom, and the same is carried out below); adjusting the distance between the pole and the female die, clamping the die (female die), filling magnetic powder, magnetizing and orienting, moving the upper main cylinder (other electric cylinders are not moved), moving the piston rod of the upper main cylinder downwards to drive the upper punch through the upper die frame, pressing magnetic powder downwards through the female die, maintaining the pressure for a period of time, after demagnetization, moving the upper main cylinder, resetting the upper die, taking out a workpiece, and finishing a pressing process.
When the bidirectional pressing is adopted, the movable electric cylinder acts, a piston rod of the movable electric cylinder moves upwards, and the female die is positioned to a specified position through the movable die frame and the die holder; adjusting the distance between the pole and the female die, and clamping the die; and (3) the lower main cylinder acts, a piston rod of the lower main cylinder moves upwards to pass through the lower movable die frame, the lower punch is positioned at a specified position and filled with magnetic powder, the upper main cylinder moves downwards to drive the upper movable die frame to punch the upper die to the upper opening of the female die through the piston rod of the upper main cylinder, after magnetization orientation, the upper main cylinder and the lower main cylinder synchronously press in opposite directions at the same time, demagnetization is performed after pressing forming, the upper main cylinder and the lower main cylinder move upwards at the same time, the lower die pushes a workpiece out of the female die, the upper die resets, the workpiece is taken out, the lower die resets, and a pressing process is completed.
When floating pressing is adopted, the movable electric cylinder acts, a piston rod of the movable electric cylinder moves upwards, and the female die is positioned to a specified position through the movable die frame and the die holder; the distance between the pole and the female die is adjusted, the lead screw is locked, and the distance between the pole and the female die is unchanged (certain gap is formed). The lower main cylinder acts, a piston rod of the lower main cylinder moves upwards to pass through the lower movable die frame, the lower punch is positioned at a specified position, and magnetic powder is filled in the lower punch; the upper main electric cylinder acts, the piston rod of the upper main electric cylinder moves downwards to drive the upper die to punch the upper opening of the female die through the upper moving die frame, after magnetizing and orienting, the lower die does not move, the upper main electric cylinder moves downwards quickly, the moving electric cylinder moves downwards slowly to form floating differential pressure, demagnetization is performed after compression molding, the upper main electric cylinder and the lower main electric cylinder move upwards simultaneously, the lower die ejects a workpiece out of the female die, the upper die resets, the workpiece is taken out, the lower die resets, the moving die resets, and a pressing process is completed.
Preferably, in order to increase the motion stability of the movable die carrier, four guide posts are arranged between the upper beam and the lower beam, and the upper movable die carrier, the movable die carrier and the lower movable die carrier respectively penetrate through the four guide posts. The guide posts are fixed on the upper beam and the lower beam through guide post adjusting nuts respectively. The movable mould frame is driven by two movable electric cylinders, the upper movable mould frame is driven by an upper main electric cylinder, and the lower movable mould frame is driven by a lower main electric cylinder.
Further preferably, the upper main cylinder and the lower main cylinder are located on the same axis. An upper electric cylinder supporting plate is arranged at the bottom of the upper main electric cylinder and is fixedly arranged at the bottom of the upper main electric cylinder through an upper nut by a guide pillar. The lower main cylinder bottom is provided with a lower electric cylinder supporting plate, the lower electric cylinder supporting plate is fixedly arranged at the lower main cylinder bottom through a lower electric cylinder pull rod by using a lower nut, and the upper end of the lower electric cylinder pull rod is connected to the lower beam. The four guide posts further form a stable combined structure for the frame (formed by the upper and lower beams and the side plates) and the upper and lower main cylinders.
Further preferably, a nut seat is fixedly installed on the side plate, a lead screw is installed in the nut seat, a hand wheel is installed at the outer end of the lead screw, and the inner end of the lead screw is connected with the pole. The distance between the two polar columns can be conveniently adjusted by adjusting the polar columns to horizontally move through the hand wheel.
Compared with the prior art, the invention has the following advantages:
(1) the frame structure of the counter-pressure floating magnetic field press machine adopts a mixed structure of a combined frame structure and a four-column structure which are mutually connected, and the base supports the press machine, so that the press machine has the advantages of stable overall structure, high strength, high rigidity, high precision, convenience in sealing during working, high deformation resistance after bearing pressure and high finished product qualification rate.
(2) According to the counter-pressure floating magnetic field press machine, the pressure part adopts an electric cylinder press forming technology and a closed-loop servo control system, a servo motor, a screw rod, a control instrument and other parts are integrally designed to form a modular product, the modular product is easily connected with a control system such as a PLC (programmable logic controller), three groups of movable die carriers are combined, four columns are used for guiding, various pressing modes such as one-way pressing, two-way pressing, floating pressing, composite pressing and the like can be realized, and the best advantage, namely accurate speed control, accurate position control and accurate thrust control can be realized, wherein the control accuracy reaches 0.01 mm; the thrust is precisely controlled, and the control precision can reach 1%; the device realizes high-precision motion control, high rigidity, impact resistance and super long service life, can work for a long time without failure in severe environment, and is environment-friendly and energy-saving.
(3) According to the counter-pressure floating magnetic field press machine, due to the improvement of rigidity, strength and precision, the pressing density can reach the pressing density of an isostatic press, products pressed by the press machine can directly enter a sintering process, the pressing link of the isostatic press in the existing magnetic powder forming process can be reduced, and a road is paved for realizing automatic continuous operation.
(4) The counter-pressure floating magnetic field press machine also has the advantages of better pressing effect and demoulding performance, simple operation, stable movement, low noise, low maintenance cost and the like, only needs to be lubricated by injecting grease regularly, has no wearing parts to be maintained and replaced, and reduces a large amount of after-sale service cost compared with a hydraulic system press machine.
The invention has reasonable design, is the best substitute of a hydraulic system press and has good practical application value.
Drawings
Fig. 1 is a schematic sectional view of the main body of the pair of floating magnetic field presses.
Fig. 2 shows a schematic side sectional view (i.e., B-B of fig. 1) of the present twin-pressure floating magnetic field press.
Fig. 3 is an overall view of the pair of floating magnetic field presses.
Fig. 4 shows a side view of the overall press with floating magnetic field.
In the figure: 1-upper beam, 2-side plate, 3-coil, 4-pole, 5-lead screw, 6-hand wheel, 7-nut seat, 8-workpiece, 9-female die, 10-lower beam, 11-base, 12-upper nut, 13-upper cylinder support plate, 14-upper main electric cylinder, 15-guide column adjusting nut, 16-guide column, 17-upper main electric cylinder piston rod, 18-upper moving die frame, 19-upper punch, 20-die seat, 21-moving die frame, 22-moving electric cylinder piston rod, 23-moving electric cylinder, 24-lower nut, 25-lower electric cylinder supporting plate, 26-lower electric cylinder pull rod, 27-lower main electric cylinder, 28-lower main electric cylinder piston rod, 29-lower moving die frame, 30-lower punch.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
A counter-pressure floating magnetic field press machine is shown in figures 1 and 2 and comprises a base 11, wherein a lower beam 10 is fixedly mounted on the base 11, two opposite side plates 2 are symmetrically and fixedly mounted on the lower beam 10, an upper beam 1 is mounted between the tops of the two side plates 2, a pair of pole posts 4 are symmetrically mounted on the two side plates 2, and a coil 3 is arranged outside the pole posts 4. The fixed mounting screw seat 7 on curb plate 2, installation lead screw 5 in the screw seat 7, 5 outer end installation hand wheels 6 of lead screw, 5 the inner and utmost point post 4 of lead screw are connected, for example 5 the inner bearing installation in the reservation mounting groove of utmost point post 4 of lead screw, and the rotary motion of hand wheel changes the horizontal linear motion of utmost point post into through the lead screw like this.
As shown in fig. 1 and 2, four guide posts 16 are arranged between the upper beam 3 and the lower beam 10, and each guide post 16 is fixed on the upper beam 1 and the lower beam 10 through a guide post adjusting nut 15.
As shown in fig. 1 and 2, a lower main electric cylinder 27 is installed on the lower bottom surface of the lower beam 10, a lower main cylinder piston rod 28 of the lower main electric cylinder 27 penetrates through the lower beam 10 and then the end part of the lower main cylinder piston rod is connected with a lower movable die frame 29, and a lower punch 30 is fixedly installed on the lower movable die frame 29; the lower moving die carrier 29 passes through the four guide posts 16 and moves up and down along the guide posts 16 by the driving of the lower main electric cylinder 27. The bottom of the lower main electric cylinder 27 is provided with a lower electric cylinder supporting plate 25, the lower electric cylinder supporting plate 25 is tightly fixed at the bottom of the lower main electric cylinder 27 through a lower electric cylinder pull rod 26 by a lower nut 24, and the upper end of the lower electric cylinder pull rod 26 is connected to the lower beam 10.
As shown in fig. 1 and 2, a movable electric cylinder 23 is installed on the lower bottom surface of the lower beam 10, a movable electric cylinder piston rod 22 of the movable electric cylinder 23 sequentially penetrates through the lower beam 10 and the lower movable mold frame 29, the end portion of the movable electric cylinder piston rod is connected with a movable mold frame 21, a mold base 20 is installed on the movable mold frame 21, a female mold 9 is installed on the mold base 20, the female mold 9 is located between a pair of poles 4, the upper portion of a lower punch 30 is matched and extends into the female mold 9 to serve as the bottom of the female mold 9, and magnetic powder is loaded into the female mold 9 and then located on the lower punch 19. The movable die carrier 28 also passes through four guide posts 16 and moves up and down along the guide posts 16 under the driving of the movable electric cylinder 23. Also, the moving mold frame 21 is driven by two moving electric cylinders 23, and the two moving electric cylinders 23 are symmetrically arranged at both sides of the lower main cylinder 27.
As shown in fig. 1 and 2, an upper electric cylinder 14 is installed on the upper bottom surface of the upper beam 1, an upper cylinder piston rod 17 of the upper electric cylinder 14 penetrates through the upper beam 1 and then is connected with an upper movable die frame 18, an upper punch 19 is installed on the bottom surface of the upper movable die frame 18, and the lower portion of the upper punch 19 is matched and extends into a female die 20 and is used for applying work to a workpiece 8. The upper moving die carrier 18 also passes through four guide posts 16 and moves up and down along the guide posts 16 under the driving of the upper main electric cylinder 14. Furthermore, an upper cylinder support plate 13 is provided at the bottom of the upper main cylinder 14, and the upper cylinder support plate 13 is fastened to the bottom of the upper main cylinder 2 by an upper nut 12 via a guide post 16.
The assembly and the work are as follows in specific implementation:
the frame is formed by connecting an upper beam 1, a lower beam 10, a left side plate and a right side plate 2, four guide pillars 16 are respectively arranged on the upper beam 1 and the lower beam 10 of the frame by guide pillar adjusting nuts 15 and are integrally fixed on a base 11, and a rack system is formed.
An upper main electric cylinder 14 is fixed on the upper beam 1, and an upper cylinder support plate 13 is tightly installed on the upper main electric cylinder 14 through a guide post 16 by an upper nut 12 to form an upper main cylinder part.
The lower main electric cylinder 27 is fixed on the lower beam 10, the lower main electric cylinder supporting plate 25 is fixedly arranged on the lower main electric cylinder 27 through a lower main electric cylinder pull rod 26 by using a lower nut 24, and the two movable electric cylinders 23 are fixed on the lower beam 10 to form a lower main electric cylinder part.
Therefore, the upper main electric cylinder 14, the lower main electric cylinder 27, the upper frame beam 1, the lower frame beam 10, the side plate 2 and the base 11 are organically connected into a whole through the guide post 16 and the lower main electric cylinder pull rod 26, the whole rigidity and the strength are very strong, the structure is very stable, the electric cylinder is high in installation precision and convenient to adjust.
The pressure part adopts an electric cylinder compression molding technology, a closed-loop servo control system, a modular product which is designed by integrating a servo motor, a lead screw, a control instrument and other parts is easily connected with a control system such as a PLC (programmable logic controller), three groups of movable die carriers are combined, four-column guiding is adopted, various compression modes such as unidirectional compression, bidirectional compression, floating compression, composite compression and the like can be realized, the speed and the position are accurately controlled, and the control precision reaches 0.01 mm; the thrust is precisely controlled, and the control precision can reach 1%.
The upper surface of the upper movable die frame 18 is connected with an upper main cylinder piston rod 17, the lower surface is provided with an upper punch 19, and the upper punch is driven by an upper main cylinder 14 to slide up and down along a guide post 16 to form an upper die frame part.
The lower part of the lower movable mould frame 29 is connected with a lower main cylinder piston rod 28, the upper part is provided with a lower stamping punch 30, and the lower stamping punch slides up and down along the guide post 16 through a lower main cylinder 27 to form a lower mould frame part.
The upper surface of the movable mould frame 21 is provided with a mould seat 20 and a female mould 9, the lower surface of the movable mould frame is connected with two movable electric cylinder piston rods 22, and the movable mould frame is driven by two movable electric cylinders 23 to slide up and down along the guide post 16 to form a movable mould frame part.
The upper punch 19 and the lower punch 30 work on the workpiece 8 through the female die 9, and the upper moving die frame 18, the lower moving die frame 29 and the moving die frame 21 form a serial layout structure along four guide posts 16, so that various pressing modes such as unidirectional pressing, bidirectional pressing, floating pressing, composite pressing and the like can be realized.
And thirdly, the pole part, the gap between the two poles is adjustable, and the female die and the pole can work in the gap. Two groups of coils 3 are fixed on the side plates 2 to wrap corresponding polar columns 4, the polar columns 4 are connected with a lead screw 5 and are installed in the coils 3, the coils are positioned by a screw seat 7, a hand wheel 6 is connected with the lead screw 5 to form a polar column part, and the distance between the polar columns can be adjusted left and right by rotating the hand wheel.
The coil 3 is provided with a specified cooling system, so that the coil is ensured to work at constant temperature all the time, the magnetic field intensity is ensured, and the power consumption cost is reduced.
Fourth, the working process
When the invention is used for manufacturing products, various pressing modes such as unidirectional pressing, bidirectional pressing, floating pressing, composite pressing and the like can be realized.
When unidirectional pressing is adopted, the movable electric cylinder 23 acts, the piston rod 22 of the movable electric cylinder moves upwards, and the female die 9 is positioned to a specified position through the movable die carrier 21 and the die holder 20; the lower main electric cylinder 27 is actuated, the lower main electric cylinder piston rod 28 moves upwards to pass through the lower movable die frame 29, and the lower punch 30 is positioned to a designated position (the lower punch 30 is inserted into the female die 9 in a matching way to serve as a bottom); the hand wheel 6 is rotated to adjust the distance between the pole 4 and the female die 9, the die (female die) is clamped, magnetic powder is filled, after magnetizing and orientation, the upper main cylinder acts (other electric cylinders do not move), the piston rod 17 of the upper main cylinder moves downwards to drive the upper punch 19 through the upper die frame 18, magnetic powder is pressed downwards through the female die 9, pressure maintaining is carried out for a period of time, after demagnetization, the upper main electric cylinder 14 acts, the upper die resets, a workpiece is taken out, and a pressing process is completed.
When the bidirectional pressing is adopted, the movable electric cylinder 23 acts, the piston rod 22 of the movable electric cylinder moves upwards, and the female die 9 is positioned to a specified position through the movable die carrier 21 and the die holder 20; the hand wheel 6 is rotated to adjust the distance between the pole 4 and the female die 9, and the die is clamped; and (3) the lower main electric cylinder 27 acts, a lower main electric cylinder piston rod 28 moves upwards to pass through a lower movable die frame 29, a lower punch 30 is positioned at a designated position and filled with magnetic powder, the upper main electric cylinder 14 moves downwards to drive an upper punch 19 to the upper opening of the female die 9 through an upper main electric cylinder piston rod 17, after magnetizing and orientation, the upper main electric cylinder and the lower main electric cylinder synchronously press in opposite directions at the same time, demagnetization is realized after pressing and shaping is realized, the upper main electric cylinder and the lower main electric cylinder move upwards at the same time, the lower die pushes a workpiece out of the female die, the upper die resets, the workpiece is taken out, and the lower die resets to complete a pressing process.
When floating pressing is adopted, the movable electric cylinder 23 acts, the piston rod 22 of the movable electric cylinder moves upwards, and the female die 9 is positioned to a specified position through the movable die carrier 21 and the die holder 20; the hand wheel 6 is rotated to adjust the distance between the pole and the female die 9, the lead screw 5 is locked, and the distance between the pole 4 and the female die 9 is guaranteed to be unchanged (a certain gap is formed). The lower main electric cylinder 27 is actuated, the piston rod 28 of the lower main electric cylinder moves upwards to pass through the lower movable die frame 29, the lower punch 30 is positioned to a designated position, and magnetic powder is filled in the lower punch; the upper main electric cylinder 14 acts, an upper main electric cylinder piston rod 17 moves downwards to drive an upper punch 19 to an upper opening of the female die 9 through an upper moving die frame 18, after magnetizing and orientation, the lower die does not move, the upper main electric cylinder 14 moves downwards quickly, a moving electric cylinder 23 moves downwards slowly to form floating differential pressure, demagnetization is carried out after pressing and shaping are carried out, the upper main electric cylinder and the lower main electric cylinder move upwards simultaneously, the lower die ejects a workpiece out of the female die, the upper die resets, the workpiece is taken out, the lower die resets, the moving die resets, and a pressing process is completed.
When the composite pressing is adopted, the floating pressing and the bidirectional pressing are carried out simultaneously, the density of the finished product is uniform, the consistency is good, the products in various shapes can be pressed, and the demolding effect is better.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the detailed description is made with reference to the embodiments of the present invention, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which shall be covered by the claims of the present invention.
Claims (8)
1. A counter-pressure floating magnetic field press machine comprises a base (11), wherein a lower beam (10) is fixedly installed on the base (11), two opposite side plates (2) are symmetrically and fixedly installed on the lower beam (10), an upper beam (1) is installed between the tops of the two side plates (2), a pair of polar posts (4) are symmetrically installed on the two side plates (2), and coil packages (3) are arranged on the polar posts (4);
the method is characterized in that: a lower main electric cylinder (27) is installed on the lower bottom surface of the lower beam (10), a lower main electric cylinder piston rod (28) of the lower main electric cylinder (27) penetrates through the lower beam (10) and then the end part of the lower main electric cylinder piston rod is connected with a lower movable die frame (29), and a lower stamping (30) is arranged on the lower movable die frame (29);
a movable electric cylinder (23) is installed on the lower bottom surface of the lower beam (10), a movable electric cylinder piston rod (22) of the movable electric cylinder (23) sequentially penetrates through the lower beam (10) and the lower movable die frame (29), the end portion of the movable electric cylinder piston rod is connected with a movable die frame (21), a die holder (20) is installed on the movable die frame (21), a female die (9) is installed on the die holder (20), the female die (9) is located between a pair of polar posts (4), and the upper portion of a lower punch (30) is matched and extends into the female die (9);
the upper movable die frame is characterized in that an upper main electric cylinder (14) is installed on the upper bottom surface of the upper beam (1), an upper cylinder piston rod (17) of the upper main electric cylinder (14) penetrates through the upper beam (1) and then is connected with an upper movable die frame (18), an upper punch (19) is installed on the bottom surface of the upper movable die frame (18), and the lower portion of the upper punch (19) is matched with and extends into the female die (20).
2. A counter pressure floating magnetic field press as claimed in claim 1, wherein: four guide posts (16) are arranged between the upper beam (3) and the lower beam (10), and the upper movable die frame (18), the movable die frame (28) and the lower movable die frame (29) respectively penetrate through the four guide posts (16).
3. A counter-pressure floating magnetic field press as claimed in claim 1 or 2, wherein: the guide post (16) is fixed on the upper beam (1) and the lower beam (10) through a guide post adjusting nut (15) respectively.
4. A counter pressure floating magnetic field press as claimed in claim 3, wherein: an upper electric cylinder supporting plate (13) is arranged at the bottom of the upper main electric cylinder (14), and the upper electric cylinder supporting plate (13) is tightly installed at the bottom of the upper main electric cylinder (2) through a guide post (16) by an upper nut (12).
5. The counter-pressure floating magnetic field press according to claim 4, wherein: lower electric jar layer board (25) are equipped with down in lower main electric jar (27) bottom, lower electric jar layer board (25) are installed in lower main electric jar (27) bottom through lower electric jar pull rod (26) with lower nut (24) fastening, lower electric jar pull rod (26) upper end is connected in underbeam (10).
6. The counter-pressure floating magnetic field press according to claim 4, wherein: the improved electric connector is characterized in that a nut seat (7) is fixedly installed on the side plate (2), a lead screw (5) is installed in the nut seat (7), a hand wheel (6) is installed at the outer end of the lead screw (5), and the inner end of the lead screw (5) is connected with the pole (4).
7. The counter-pressure floating magnetic field press according to claim 6, wherein: the movable mould frame (21) is driven by two movable electric cylinders (23).
8. The counter pressure floating magnetic field press according to claim 7, wherein: the two movable electric cylinders (23) are symmetrically arranged at two sides of the lower main electric cylinder (27).
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| CN202111103135.7A CN113634746A (en) | 2021-09-18 | 2021-09-18 | Press with floating magnetic field |
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| CN202111103135.7A CN113634746A (en) | 2021-09-18 | 2021-09-18 | Press with floating magnetic field |
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| CN2483124Y (en) * | 2001-06-13 | 2002-03-27 | 王爱中 | Magnetic field powder formation pressing machine |
| US20080098908A1 (en) * | 2004-02-23 | 2008-05-01 | Jilin University | Adjustable Hydraulic Press With Both Upper And Lower Double Action |
| CN201613343U (en) * | 2010-01-28 | 2010-10-27 | 太原正好磁性设备有限公司 | Four-column floating magnetic field press |
| CN108580888A (en) * | 2018-03-12 | 2018-09-28 | 百琪达智能科技（宁波）股份有限公司 | A kind of molding machine of full servo-type mo(u)ldenpress |
| CN210160397U (en) * | 2019-07-03 | 2020-03-20 | 绵阳华通磁件技术有限公司 | Servo press for high-precision powder die pressing |
| CN111069595A (en) * | 2019-12-30 | 2020-04-28 | 南通力友液压机制造有限公司 | Special forming hydraulic press for tantalum-niobium strips |
| CN215845695U (en) * | 2021-09-18 | 2022-02-18 | 太原市鸿煷机械设备有限公司 | Press with floating magnetic field |
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2021
- 2021-09-18 CN CN202111103135.7A patent/CN113634746A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483124Y (en) * | 2001-06-13 | 2002-03-27 | 王爱中 | Magnetic field powder formation pressing machine |
| US20080098908A1 (en) * | 2004-02-23 | 2008-05-01 | Jilin University | Adjustable Hydraulic Press With Both Upper And Lower Double Action |
| CN201613343U (en) * | 2010-01-28 | 2010-10-27 | 太原正好磁性设备有限公司 | Four-column floating magnetic field press |
| CN108580888A (en) * | 2018-03-12 | 2018-09-28 | 百琪达智能科技（宁波）股份有限公司 | A kind of molding machine of full servo-type mo(u)ldenpress |
| CN210160397U (en) * | 2019-07-03 | 2020-03-20 | 绵阳华通磁件技术有限公司 | Servo press for high-precision powder die pressing |
| CN111069595A (en) * | 2019-12-30 | 2020-04-28 | 南通力友液压机制造有限公司 | Special forming hydraulic press for tantalum-niobium strips |
| CN215845695U (en) * | 2021-09-18 | 2022-02-18 | 太原市鸿煷机械设备有限公司 | Press with floating magnetic field |
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