CN117181978B - Transformer shell cold forging equipment formed by using one die - Google Patents
Transformer shell cold forging equipment formed by using one die Download PDFInfo
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- CN117181978B CN117181978B CN202311259568.0A CN202311259568A CN117181978B CN 117181978 B CN117181978 B CN 117181978B CN 202311259568 A CN202311259568 A CN 202311259568A CN 117181978 B CN117181978 B CN 117181978B
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- 238000010273 cold forging Methods 0.000 title claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 238000005086 pumping Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005242 forging Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000003754 machining Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003116 impacting effect 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010112 shell-mould casting Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a cold forging device for a transformer shell formed by using a die, and relates to the field of cold forging machines. The technical scheme is that the die comprises a machine table and a die, the die is composed of a male die and a female die, the female die is fixed on the machine table, an impact driving unit for driving the male die to move is assembled on the male die, the impact driving unit comprises a crankshaft, a connecting rod, a bearing seat and an impact block, two ends of the crankshaft are respectively connected with the bearing seat in a rotating mode, the bearing seat is connected with the machine table in a sliding mode, two ends of the connecting rod are respectively connected with the crankshaft and the impact block in a rotating mode, and an oil pressure driving mechanism for driving the impact driving unit to move is assembled on the impact driving unit. The impact driving unit is in sliding connection with the machine table, and the hydraulic driving mechanism drives the impact driving unit to drive the male die to approach the female die gradually in the forging process, so that the forging depth is increased gradually, and the effect of forming the transformer shell on one die is achieved.
Description
Technical Field
The invention relates to the field of cold forging machines, in particular to a cold forging device for a transformer shell formed by using a die.
Background
Cold forging is a forming process of a material at a temperature equal to or lower than the recrystallization temperature, and is forging performed at a temperature equal to or lower than the recovery temperature. Forging without heating blanks is commonly called cold forging in production, and the process is adopted for processing the transformer shell.
The existing cold forging equipment mainly comprises a machine table, a die and an impact driving unit, wherein the impact driving unit is provided with a crankshaft impact and a hydraulic impact, and when a large-scale transformer is processed, the transformer shell is large in size and deep in forging depth, and the transformer shell cannot be molded at one step with high efficiency no matter by hydraulic or crankshaft impact.
Taking cold forging of a crankshaft as an example, the forging depth of the cold forging of the crankshaft depends on the length from the side shaft to the axis of the crankshaft, and the too deep transformer shell needs to be formed at one time, so that the protruding length of the side shaft is at least one half of the machining depth, the crankshaft is too large, the strength of the crankshaft cannot be ensured, the machining equipment is large, and the machining cost of the transformer shell is increased.
The mode of solving above-mentioned problem at present is, changes multiunit mould, lets transformer housing raw materials pass through forging shaping many times, and this kind of mode has increased the input cost of mould, and transformer housing raw materials need remove the pair mould many times, and the in-process easily appears the deviation and influences yield and machining efficiency.
Disclosure of Invention
Object of the invention
In view of the above, the present invention is directed to a cold forging apparatus for forming a transformer housing by using a mold, so as to achieve one-step forming.
(II) technical scheme
In order to achieve the technical purpose, the invention provides a cold forging device for a transformer shell formed by using a die, which comprises a die body, a die head and a die head, wherein the die head is arranged on the die head, and the die head is connected with the die head through the die head, and comprises a die head and a die head:
The die consists of a male die and a female die, the female die is fixed on the machine, an impact driving unit for driving the male die to move is assembled on the male die, the impact driving unit comprises a crankshaft, a connecting rod, a bearing seat and an impact block, two ends of the crankshaft are respectively and rotationally connected with the bearing seat, the bearing seat is in sliding connection with the machine, two ends of the connecting rod are respectively and rotationally connected with the crankshaft and the impact block, an oil pressure driving mechanism for driving the impact driving unit to move is assembled on the impact driving unit, the oil pressure driving mechanism comprises a supporting beam, two sides of the supporting beam are respectively fixed on the bearing seat, one side of the supporting beam is provided with a push-pull oil cylinder for driving the supporting beam to move, the other side of the supporting beam is provided with an oil feeder for feeding oil to the push-pull oil cylinder, one side of the oil feeder is provided with an oil path system for feeding oil to the oil feeder, and the other side of the oil feeder is provided with a push-pull assembly for driving the oil feeder. Preferably, the impact driving unit further comprises a driving belt wheel, a synchronous belt, a driven belt wheel, a first supporting plate, a first linear sliding rail set, a second linear sliding rail set and a connecting frame, wherein the driving belt wheel is linked with the driven belt wheel through the synchronous belt, the driven belt wheel is sleeved and fixed at the end part of the crankshaft, the impact block is fixed on the upper surface of the first supporting plate, two sides of the first supporting plate are in sliding connection with the machine platform through the first linear sliding rail set, the bottom of the bearing seat is in sliding connection with the machine platform through the second linear sliding rail set, one end of the connecting frame is fixedly connected with the impact block, and the other end of the connecting frame is fixedly connected with the male die. Preferably, the machine is provided with a tensioning mechanism for tensioning the synchronous belt, the tensioning mechanism is composed of a second supporting plate, a pressing wheel frame, a pressing wheel, a steel cable, a first fixing pile, a second fixing pile and a tension spring, the second supporting plate is fixed on the machine, the first fixing pile and the second fixing pile are fixed on the second supporting plate, the pressing wheel is in sliding connection with the synchronous belt, the shaft center of the pressing wheel is rotationally connected with the pressing wheel frame, the bottom of the pressing wheel frame is fixedly connected with the tension spring through the steel cable, the steel cable is in sliding connection with the first fixing pile, and one end of the tension spring, far away from the steel cable, is fixedly connected with the second fixing pile. Preferably, a stabilizing seat is fixed in the machine table, and the connecting frame is in sliding connection with the stabilizing seat. Preferably, the push-pull oil cylinder is composed of a cylinder barrel, a cylinder seat, a second piston, a second valve seat and a second valve plate, wherein the cylinder seat is provided with two oil holes, the two cylinder seats are respectively fixed at two ends of the cylinder barrel, the second piston is in sliding connection with the cylinder barrel, one end of the second piston penetrates through one cylinder seat and is fixedly connected with a supporting beam, the other cylinder seat is fixed on the stabilizing seat, the two cylinder seats are respectively fixed with a throttle valve composed of the second valve seat and the second valve plate, the bottom of the second valve seat is provided with an oil hole, the second valve plate is fixed on the inner wall of the second valve seat, and the second valve seat is fixedly connected with the lower surface of the cylinder seat. Preferably, the oil feeder comprises an oil cylinder, a first piston rod, a first valve seat, a first valve plate and a fixing bolt, wherein the first piston rod is in sliding connection with the oil cylinder, the first valve seat is fixed in the oil cylinder, and the first valve plate is fixedly connected with the first valve seat through the fixing bolt. Preferably, the oil way system comprises oil tank, oil pumping pipe and oil delivery pipe, and the oil tank is fixed on supporting beam, oil pumping pipe's both ends respectively with the bottom of oil drum and the bottom fixed connection of oil tank, just oil delivery ware's inner chamber communicates with the inner chamber of oil tank through oil pumping pipe, oil delivery pipe's both ends respectively with oil delivery ware's side and be close to oil delivery pipe's second disk seat bottom fixed connection, oil delivery pipe and oil delivery ware intercommunication are passed through to the inner chamber of second disk seat, oil pumping pipe and oil delivery ware link to each other the department and are located the below of first disk seat, oil delivery pipe and oil delivery ware link to each other the department and are located the top of first disk seat. Preferably, the push-pull assembly comprises a third supporting plate, a push-pull wheel disc, a driven conical gear, a driving conical gear and a push-pull rod, wherein the driving conical gear is sleeved and fixed on a crankshaft, the bottom of the third supporting plate is fixed on a supporting beam, the push-pull wheel disc and the driven conical gear are coaxially and rotatably connected with the top of the third supporting plate, the driven conical gear is meshed with the driving conical gear, the transmission ratio of the driving conical gear to the driven conical gear is one-to-two, and two ends of the push-pull rod are respectively and rotatably connected with the push-pull wheel disc and a first piston rod, and the push-pull rod is eccentrically connected with the push-pull wheel disc.
From the above technical scheme, the application has the following beneficial effects:
Through with impact drive unit and board sliding connection to drive impact drive unit through oil pressure actuating mechanism and drive the terrace die gradually to the die in forging process and be close to, progressively increase forging degree of depth, thereby reach the effect of shaping transformer housing on a mould, solved the problem that needs multiunit mould, and need change the material, improved machining efficiency and yield.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the whole structure of a cold forging apparatus for a transformer housing formed by a mold according to the present invention; FIG. 2 is a schematic view of a partially exploded view of a cold forging apparatus for forming a transformer housing using a mold according to the present invention; FIG. 3 is a schematic view showing the overall structure of the impact driving unit in FIG. 2 of a cold forging apparatus for a transformer housing formed by a mold according to the present invention; FIG. 4 is a schematic view of the whole structure of the oil pressure driving mechanism in FIG. 2 of a cold forging apparatus for a transformer housing formed by a mold according to the present invention; FIG. 5 is a schematic view of the whole structure of the oil feeder in FIG. 4 of a cold forging apparatus for a transformer housing formed by a mold according to the present invention; FIG. 6 is a schematic diagram of the overall structure of the push-pull cylinder in FIG. 4 of a cold forging apparatus for a transformer housing formed by a mold according to the present invention; FIG. 7 is a schematic top view of a cold forging apparatus for forming a transformer housing using a mold according to the present invention; FIG. 8 is a schematic cross-sectional view of the cold forging apparatus for transformer housing formed by a mold shown in FIG. 7 at A-A; fig. 9 is a schematic diagram showing the overall structure of the tensioning mechanism in fig. 2 of a cold forging apparatus for a transformer housing formed by using a mold according to the present invention.
Description of the drawings: 1. a machine table; 2. an impact driving unit; 21. a driving pulley; 22. a synchronous belt; 23. a driven pulley; 24. a crankshaft; 25. a connecting rod; 26. a bearing seat; 27. an impact block; 28. a first support plate; 29. the first linear slide rail group; 210. the second linear slide rail group; 211. a connecting frame; 3. a tensioning mechanism; 31. a second support plate; 32. a pressing wheel frame; 33. a pinch roller; 34. a wire rope; 35. a first fixing pile; 36. a second fixed pile; 37. a tension spring; 4. an oil pressure driving mechanism; 41. a support beam; 42. an oil tank; 43. an oil feeder; 431. an oil drum; 432. a first piston rod; 433. a first valve seat; 434. a first valve plate; 435. a fixing bolt; 44. an oil pumping pipe; 45. oil delivery pipe; 46. push-pull oil cylinder; 461. a cylinder; 462. a cylinder base; 463. a second piston; 464. a second valve seat; 465. a second valve plate; 47. a third support plate; 48. a push-pull wheel disc; 49. a driven bevel gear; 410. a driving bevel gear; 411. a push-pull rod; 5. a mold; 51. a male die; 52. a female die; 6. a limiting plate; 7. and a stabilizing seat.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, the same or similar reference numerals indicate the same or similar parts and features. The drawings merely schematically illustrate the concepts and principles of embodiments of the disclosure and do not necessarily illustrate the specific dimensions and proportions of the various embodiments of the disclosure. Specific details or structures may be shown in exaggerated form in particular figures to illustrate related details or structures of embodiments of the present disclosure.
Referring to fig. 1-9:
The cold forging equipment for the transformer shell formed by one die comprises a machine table 1 and a die 5, wherein the die 5 is composed of a male die 51 and a female die 52, the female die 52 is fixed on the machine table 1, an impact driving unit 2 for driving the male die 51 to move is assembled on the male die 51, the impact driving unit 2 comprises a driving belt pulley 21, a synchronous belt 22, a driven belt pulley 23, a crankshaft 24, a connecting rod 25, a bearing seat 26, an impact block 27, a first supporting plate 28, a first linear sliding rail set 29, a second linear sliding rail set 210 and a connecting frame 211, the driving belt pulley 21 is linked with the driven belt pulley 23 through the synchronous belt 22, the driven belt pulley 23 is sleeved and fixed at the end part of the crankshaft 24, and the driving belt pulley 21 drives the driven belt pulley 23 to rotate through the synchronous belt 22, so that the driven belt pulley 23 can drive the crankshaft 24 to rotate;
Specifically, the two ends of the crankshaft 24 are respectively rotationally connected with the bearing seat 26 through bearings, rotation stability of the crankshaft 24 is guaranteed, the bottom of the bearing seat 26 is in sliding connection with the machine 1 through the second linear sliding rail set 210, the first linear sliding rail set 29 and the second linear sliding rail set 210 are both composed of sliding blocks and sliding rails, the sliding rails in the first linear sliding rail set 29 and the second linear sliding rail set 210 are both fixed on the machine 1, the sliding blocks in the first linear sliding rail set 29 and the second linear sliding rail set 210 are respectively fixedly connected with the bearing seat 26 and the first supporting plate 28, the sliding blocks are in sliding connection with the sliding rails, sliding stability of the bearing seat 26 and the first supporting plate 28 on the machine 1 is guaranteed, the two ends of the connecting rod 25 are respectively in sliding connection with the crankshaft 24 and the impact block 27, the impact block 27 is fixed on the upper surface of the first supporting plate 28, when the crankshaft 24 rotates, the impact block 27 is driven to reciprocate through the connecting rod 25, one end of the connecting frame 211 is fixedly connected with the impact block 27, the other end of the connecting frame 211 is fixedly connected with the male die 51, and the male die 51 is driven to reciprocate towards the female die 52.
Further, as shown in fig. 2, a limiting plate 6 is fixed on the machine 1, a space is formed between the limiting plate 6 and the female die 52 for placing a material plate of the transformer housing, and an opening of the female die 52 is flared, so that the material plate of the transformer housing can be gradually pressed into the female die 52.
Further, as shown in fig. 2, the connecting frame 211 is composed of two flat plates and two optical axes, two ends of the optical axes are respectively connected and fixed with the two flat plates, screw holes are formed in the flat plates to facilitate connection and fixation with the male die 51 and the impact block 27, the stabilizing seat 7 is fixed in the machine 1, and the optical axes are slidably connected with the stabilizing seat 7 through linear bearings, so that the stability of the reciprocating motion of the male die 51 is improved.
In order to make the impact driving unit 2 gradually approach the female die 52, an oil pressure driving mechanism 4 for driving the impact driving unit 2 to move is assembled on the impact driving unit 2, the oil pressure driving mechanism 4 comprises a supporting beam 41, two sides of the supporting beam 41 are respectively fixed on the bearing seat 26, one side of the supporting beam 41 is assembled with a push-pull oil cylinder 46 for driving the supporting beam 41 to move, the other side of the supporting beam 41 is assembled with an oil feeder 43 for feeding oil to the push-pull oil cylinder 46, one side of the oil feeder 43 is assembled with an oil way system for feeding oil to the oil feeder 43, the other side of the oil feeder 43 is assembled with a push-pull component for driving the oil feeder 43, the push-pull component is linked with the crankshaft 24, the oil feeder 43 can be driven to feed the oil in the oil path system into the push-pull oil cylinder 46 in the rotation process of the crankshaft 24, so that the push-pull oil cylinder 46 pulls the impact driving unit 2 to be close to the female die 52; specifically, as shown in fig. 4 and 6, the push-pull cylinder 46 is composed of a cylinder 461, a cylinder seat 462, a second piston 463, a second valve seat 464 and a second valve sheet 465, the two cylinder seats 462 are provided, the two cylinder seats 462 are respectively fixed at both ends of the cylinder 461, the second piston 463 is slidably connected with the cylinder 461, one end of the second piston 463 passes through one of the cylinder seats 462 and is fixedly connected with the support beam 41, the other cylinder seat 462 is fixed on the stabilizing seat 7, a throttle valve composed of the second valve seat 464 and the second valve sheet 465 is fixed on both cylinder seats 462, the throttle direction of the throttle valve is from inside to outside, when the male die 51 impacts the female die 52, the reaction force is given to the driving impact driving unit 2, the driving impact driving unit 2 pulls the second piston 463, the second piston 463 pushes oil out of the cylinder 461 through the throttle valve, the reaction force is prevented from being completely given to the male die 51 due to restriction of throttling, the force of the male die 51 impacting the female die 52 is ensured, meanwhile, the impact of the crankshaft 24 receiving the reaction force is reduced, the service life of the crankshaft 24 is prolonged, the bottom of the second valve seat 464 is provided with an oil passing hole, the second valve plate 465 is fixed on the inner wall of the second valve seat 464, the second valve seat 464 is fixedly connected with the lower surface of the cylinder 462, the second valve plate 465 is provided with a conical hole corresponding to the oil passing port, and the aperture for outward oil outlet is smaller than the aperture for inward oil inlet, so that the oil saving effect is achieved; as shown in fig. 4 and 5, the oil feeder 43 is composed of an oil cylinder 431, a first piston rod 432, a first valve seat 433, a first valve plate 434 and a fixing bolt 435, the first piston rod 432 is slidably connected with the oil cylinder 431, the first valve seat 433 is fixed inside the oil cylinder 431, the first valve plate 434 is fixedly connected with the first valve seat 433 through the fixing bolt 435, oil can be pumped into the oil cylinder 431 by the piston movement of the first piston rod 432 inside the oil cylinder 431, a through hole is formed on the surface of the first valve seat 433 for oil passing, the first valve plate 434 is positioned on the upper surface of the first valve seat 433 to cover the through hole, restricting the oil in the oil cylinder 431 from being discharged through the first valve seat 433 and entering the oil cylinder 431 to jack up the first valve plate 434; as shown in fig. 4, the oil path system is composed of an oil tank 42, an oil pumping pipe 44 and an oil feeding pipe 45, the oil tank 42 is fixed on the supporting beam 41, the oil tank 42 is used for providing oil for the oil feeder 43 and returning oil to the push-pull oil cylinder 46, two ends of the oil pumping pipe 44 are respectively fixedly connected with the bottom of the oil cylinder 431 and the bottom of the oil tank 42, an inner cavity of the oil feeder 43 is communicated with the inner cavity of the oil tank 42 through the oil pumping pipe 44, two ends of the oil feeding pipe 45 are respectively fixedly connected with the side surface of the oil feeder 43 and the bottom of a second valve seat 464 near the oil feeding pipe 45, the inner cavity of the second valve seat 464 is communicated with the oil feeder 43 through the oil feeding pipe 45, the joint of the oil pumping pipe 44 and the oil feeder 43 is positioned below the first valve seat 433, the connection part of the oil delivery pipe 45 and the oil delivery device 43 is positioned above the first valve seat 433, so that the oil can be pumped into the oil delivery device 43 through the oil pumping pipe 44 and then delivered into the cylinder 461 through the oil delivery pipe 45;
It should be noted that the volume of the oil feeder 43 is one eighth of the volume of the push-pull oil cylinder 46, and the oil feeder 43 feeds oil eight times, so that the second piston 463 in the push-pull oil cylinder 46 can be pushed from one end of the cylinder 461 to the other end, and the male die 51 can be completely flushed into the female die 52 after multiple overlapping sections; as shown in fig. 4, the push-pull assembly is composed of a third supporting plate 47, a push-pull wheel disc 48, a driven conical gear 49, a driving conical gear 410 and a push-pull rod 411, wherein the driving conical gear 410 is sleeved and fixed on the crankshaft 24, the bottom of the third supporting plate 47 is fixed on the supporting beam 41, the push-pull wheel disc 48 and the driven conical gear 49 are coaxially connected with the top of the third supporting plate 47 in a rotating way, the driven conical gear 49 is meshed with the driving conical gear 410, the transmission ratio of the driving conical gear 410 to the driven conical gear 49 is one to two, the purpose is that the crankshaft 24 rotates one circle, the oil feeder 43 can reciprocate once and complete piston movement is achieved, the oil feeding effect is achieved, two ends of the push-pull rod 411 are respectively connected with the push-pull wheel disc 48 and the first piston rod 432 in a rotating way, the push-pull rod 411 is eccentrically connected with the push-pull wheel disc 48, the crankshaft 24 drives the driven conical gear 49 through the driving conical gear 410, the push-pull wheel disc 48 drives the push-pull rod 411 to move circumferentially around the axis of the push-pull wheel disc 48, and accordingly drives the first piston rod 432 to move in the oil cylinder 431. More specifically, as shown in fig. 8-9, in order to ensure that the synchronous belt 22 is always tensioned, a tensioning mechanism 3 for tensioning the synchronous belt 22 is assembled on the machine table 1, the tensioning mechanism 3 is composed of a second supporting plate 31, a pinch roller frame 32, a pinch roller 33, a steel cable 34, a first fixing pile 35, a second fixing pile 36 and a tension spring 37, the second supporting plate 31 is fixed on the machine table 1, the first fixing pile 35 and the second fixing pile 36 are both fixed on the second supporting plate 31, the pinch roller 33 is in sliding connection with the synchronous belt 22, the shaft center of the pinch roller 33 is in rotating connection with the pinch roller frame 32, the bottom of the pinch roller frame 32 is fixedly connected with the tension spring 37 through the steel cable 34, the steel cable 34 is in sliding connection with the first fixing pile 35, one end of the tension spring 37 far away from the steel cable 34 is fixedly connected with the second fixing pile 36, the tension spring 37 provides tension force for the steel cable 34, and when the steel cable 34 drives the pinch roller 33 to always press the synchronous belt 22 through the pinch roller frame 32, the pinch roller 22 is ensured to be tensioned.
Working principle: when the transformer shell cold forging device is used, the output end of an external driving motor or a fuel engine is connected with the driving belt pulley 21, and the machine 1 is required to be fixed on the ground through expansion screws, so that the stability of the transformer shell cold forging device during operation is ensured;
Taking the direction of fig. 8 as an example, inserting a processed transformer housing material plate between the limiting plate 6 and the female die 52, driving the driving belt pulley 21 to rotate through an external driving motor or a fuel engine, driving the driven belt pulley 23 to drive the crankshaft 24 to rotate through the synchronous belt 22, driving the impact block 27 to move along the left and right directions of the machine table 1 through the connecting rod 25 by the crankshaft 24, driving the male die 51 to impact the transformer housing material plate through the connecting frame 211 by the impact block 27, and pressing the transformer housing into the female die 52 for molding;
the crankshaft 24 can drive the driven bevel gear 49 to rotate through the driving bevel gear 410 while rotating, the driven bevel gear 49 drives the push-pull rod 411 through the push-pull wheel disc 48 to push and pull the first piston rod 432 to make piston movement in the oil cylinder 431, when the first piston rod 432 moves outwards of the oil cylinder 431, oil in the oil tank 42 can be pumped into the oil cylinder 431 through the oil pumping pipe 44, when the first piston rod 432 moves inwards of the oil cylinder 431, the oil pressure pushes the first valve plate 434 to press on the first valve seat 433, oil is prevented from flowing back into the oil tank 42 from the oil pumping pipe 44, the oil can flow into the second valve seat 464 through the oil feeding pipe 45, and then enters the cylinder 461 to push the second piston 463 to slide inwards of the cylinder 461, the second piston 463 drives the bearing seat 26 to slide on the second linear sliding rail set 210 through the supporting beam 41, and the crankshaft 24, the connecting rod 25, the impact block 27 and the connecting frame 211 push the male die 51 to approach the female die 52, and the male die 51 can further impact the raw material of the transformer shell until the raw material of the transformer shell is completely pressed into the female die 52 to obtain the molded transformer shell;
When the impact driving unit 2 moves, the driving belt pulley 21 and the synchronous belt 22 in the impact driving unit 2 are kept motionless, the tension spring 37 pulls the pinch roller frame 32 through the steel cable 34, so that the pinch roller frame 32 can always press the synchronous belt 22 through the pinch roller 33 to keep tension, and the transmission effect is ensured;
It should be noted that, when the oil is pumped by the oil feeder 43, the male mold 51 and the female mold 52 are in a closed state, at this time, no oil is fed into the push-pull oil cylinder 46, and when the oil is fed by the oil feeder 43, the male mold 51 and the female mold 52 are in a separated state, the push-pull oil cylinder 46 is not subjected to a reaction force generated when the male mold 51 impacts the female mold 52, so that the oil is fed more easily, the other second valve seat 464, which is not connected with the oil feeding pipe 45, in the push-pull oil cylinder 46 is connected with the oil tank 42 through a pipeline (not shown), an oil pump (not shown) is arranged in the oil tank 42, the pipeline is connected with the output end of the oil pump through a three-way valve (not shown), in the transformer shell molding state, the oil pump stops working, and after the molding is completed, the excessive oil in the push-pull oil cylinder 46 flows back into the oil tank 42 through the pipeline, the oil pump is pressed into the cylinder 461 through the pipeline, and the second piston 463 returns to the initial position for the next round of working.
The exemplary implementation of the solution proposed by the present disclosure has been described in detail hereinabove with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and adaptations can be made to the specific embodiments described above and that various combinations of the technical features, structures proposed by the present disclosure can be made without departing from the scope of the present disclosure, which is defined by the appended claims.
Claims (2)
1. The cold forging equipment for the transformer shell formed by utilizing one die comprises a machine table (1) and the die (5), wherein the die (5) is composed of a male die (51) and a female die (52), the female die (52) is fixed on the machine table (1), an impact driving unit (2) for driving the male die (51) to move is assembled on the male die (51), the cold forging equipment is characterized in that the impact driving unit (2) comprises a crankshaft (24), a connecting rod (25), a bearing seat (26) and an impact block (27), two ends of the crankshaft (24) are respectively connected with the bearing seat (26) in a rotating manner, the bearing seat (26) is in sliding connection with the machine table (1), two ends of the connecting rod (25) are respectively connected with the crankshaft (24) and the impact block (27) in a rotating manner, an oil pressure driving mechanism (4) for driving the impact driving unit (2) to move is assembled on the male die (51), two sides of the supporting beam (41) are respectively fixed on the bearing seat (26), one side of the supporting beam (41) is provided with a movable oil feeder (46) of the supporting beam (41), one side of the oil feeder (43) is provided with an oil way system for feeding oil to the oil feeder (43), and the other side of the oil feeder (43) is provided with a push-pull assembly for driving the oil feeder (43);
the impact driving unit (2) further comprises a driving belt wheel (21), a synchronous belt (22), a driven belt wheel (23), a first supporting plate (28), a first linear sliding rail set (29), a second linear sliding rail set (210) and a connecting frame (211), wherein the driving belt wheel (21) is linked with the driven belt wheel (23) through the synchronous belt (22), the driven belt wheel (23) is sleeved and fixed at the end part of the crankshaft (24), the impact block (27) is fixed on the upper surface of the first supporting plate (28), two sides of the first supporting plate (28) are in sliding connection with the machine table (1) through the first linear sliding rail set (29), the bottom of the bearing seat (26) is in sliding connection with the machine table (1) through the second linear sliding rail set (210), one end of the connecting frame (211) is fixedly connected with the impact block (27), and the other end of the connecting frame (211) is fixedly connected with the male die (51).
A stabilizing seat (7) is fixed in the machine table (1), and the connecting frame (211) is in sliding connection with the stabilizing seat (7);
The push-pull oil cylinder (46) consists of a cylinder barrel (461), a cylinder seat (462), a second piston (463), a second valve seat (464) and a second valve plate (465), wherein the two cylinder seats (462) are arranged, the two cylinder seats (462) are respectively fixed at two ends of the cylinder barrel (461), the second piston (463) is in sliding connection with the cylinder barrel (461), one end of the second piston (463) penetrates through one cylinder seat (462) and is fixedly connected with a supporting beam (41), the other cylinder seat (462) is fixed on a stabilizing seat (7), a throttle valve consisting of the second valve seat (464) and the second valve plate (465) is fixed on the two cylinder seats (462), an oil passing hole is formed in the bottom of the second valve seat (464), the second valve plate (465) is fixed on the inner wall of the second valve seat (464), and the second valve seat (464) is fixedly connected with the lower surface of the cylinder seat (462);
The oil feeder (43) is composed of an oil cylinder (431), a first piston rod (432), a first valve seat (433), a first valve plate (434) and a fixing bolt (435), wherein the first piston rod (432) is in sliding connection with the oil cylinder (431), the first valve seat (433) is fixed in the oil cylinder (431), and the first valve plate (434) is fixedly connected with the first valve seat (433) through the fixing bolt (435);
The oil way system is composed of an oil tank (42), an oil pumping pipe (44) and an oil delivery pipe (45), the oil tank (42) is fixed on a supporting beam (41), two ends of the oil pumping pipe (44) are respectively and fixedly connected with the bottom of an oil cylinder (431) and the bottom of the oil tank (42), an inner cavity of the oil delivery pipe (43) is communicated with the inner cavity of the oil tank (42) through the oil pumping pipe (44), two ends of the oil delivery pipe (45) are respectively and fixedly connected with the side surface of the oil delivery pipe (43) and the bottom of a second valve seat (464) close to the oil delivery pipe (45), the inner cavity of the second valve seat (464) is communicated with the oil delivery pipe (43) through the oil delivery pipe (45), the joint of the oil pumping pipe (44) and the oil delivery pipe (43) is located below a first valve seat (433), and the joint of the oil delivery pipe (45) and the oil delivery pipe (43) is located above the first valve seat (433).
The push-pull assembly comprises a third supporting plate (47), a push-pull wheel disc (48), a driven conical gear (49), a driving conical gear (410) and a push-pull rod (411), wherein the driving conical gear (410) is sleeved and fixed on a crankshaft (24), the bottom of the third supporting plate (47) is fixed on a supporting beam (41), the push-pull wheel disc (48) is coaxially connected with the driven conical gear (49) in a rotating manner with the top of the third supporting plate (47), the driven conical gear (49) is meshed with the driving conical gear (410), the transmission ratio of the driving conical gear (410) to the driven conical gear (49) is one-to-two, the two ends of the push-pull rod (411) are respectively connected with the push-pull wheel disc (48) and the first piston rod (432) in a rotating manner, and the push-pull rod (411) is eccentrically connected with the push-pull wheel disc (48).
2. A cold forging apparatus for a transformer housing formed by using a mold according to claim 1, wherein the machine table (1) is provided with a tensioning mechanism (3) for tensioning the synchronous belt (22), the tensioning mechanism (3) is composed of a second supporting plate (31), a pinch roller frame (32), a pinch roller (33), a steel cable (34), a first fixing pile (35), a second fixing pile (36) and a tension spring (37), the second supporting plate (31) is fixed on the machine table (1), the first fixing pile (35) and the second fixing pile (36) are both fixed on the second supporting plate (31), the pinch roller (33) is in sliding connection with the synchronous belt (22), the shaft center of the pinch roller (33) is in rotary connection with the pinch roller frame (32), the bottom of the pinch roller frame (32) is fixedly connected with the tension spring (37) through the steel cable (34), the steel cable (34) is in sliding connection with the first fixing pile (35), and one end of the tension spring (37) far from the steel cable (34) is fixedly connected with the second fixing pile (36).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023103152880 | 2023-03-29 | ||
| CN202310315288.0A CN116020964A (en) | 2023-03-29 | 2023-03-29 | Cold forging equipment for transformer shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117181978A CN117181978A (en) | 2023-12-08 |
| CN117181978B true CN117181978B (en) | 2024-06-11 |
Family
ID=86070932
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310315288.0A Withdrawn CN116020964A (en) | 2023-03-29 | 2023-03-29 | Cold forging equipment for transformer shell |
| CN202311259568.0A Active CN117181978B (en) | 2023-03-29 | 2023-09-27 | Transformer shell cold forging equipment formed by using one die |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310315288.0A Withdrawn CN116020964A (en) | 2023-03-29 | 2023-03-29 | Cold forging equipment for transformer shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN116020964A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116020964A (en) * | 2023-03-29 | 2023-04-28 | 江苏亚威变压器有限公司 | Cold forging equipment for transformer shell |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199290A (en) * | 1989-10-19 | 1993-04-06 | Aida Engineering, Ltd. | Method of automatic adjustment of die height of a press |
| CN103372625A (en) * | 2012-04-12 | 2013-10-30 | 大连春洋重工机械制造有限公司 | Anisobaric-three-cylinder large forging oil press |
| CN103459134A (en) * | 2011-02-02 | 2013-12-18 | 朗根施泰因及舍曼有限公司 | Press and method for pressing workpieces |
| CN109746364A (en) * | 2017-11-06 | 2019-05-14 | 天津奥特盛业重型锻压有限公司 | A kind of big stroke hydraulic forging press |
| CN113000717A (en) * | 2021-03-06 | 2021-06-22 | 南京夜龙智能装备科技有限公司 | Manufacturing process of oil tank shell of oil-immersed transformer |
| CN114273582A (en) * | 2021-11-16 | 2022-04-05 | 浙江宝拓机械股份有限公司 | Screw shaping cold heading machine |
| CN116020964A (en) * | 2023-03-29 | 2023-04-28 | 江苏亚威变压器有限公司 | Cold forging equipment for transformer shell |
-
2023
- 2023-03-29 CN CN202310315288.0A patent/CN116020964A/en not_active Withdrawn
- 2023-09-27 CN CN202311259568.0A patent/CN117181978B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199290A (en) * | 1989-10-19 | 1993-04-06 | Aida Engineering, Ltd. | Method of automatic adjustment of die height of a press |
| CN103459134A (en) * | 2011-02-02 | 2013-12-18 | 朗根施泰因及舍曼有限公司 | Press and method for pressing workpieces |
| CN103372625A (en) * | 2012-04-12 | 2013-10-30 | 大连春洋重工机械制造有限公司 | Anisobaric-three-cylinder large forging oil press |
| CN109746364A (en) * | 2017-11-06 | 2019-05-14 | 天津奥特盛业重型锻压有限公司 | A kind of big stroke hydraulic forging press |
| CN113000717A (en) * | 2021-03-06 | 2021-06-22 | 南京夜龙智能装备科技有限公司 | Manufacturing process of oil tank shell of oil-immersed transformer |
| CN114273582A (en) * | 2021-11-16 | 2022-04-05 | 浙江宝拓机械股份有限公司 | Screw shaping cold heading machine |
| CN116020964A (en) * | 2023-03-29 | 2023-04-28 | 江苏亚威变压器有限公司 | Cold forging equipment for transformer shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116020964A (en) | 2023-04-28 |
| CN117181978A (en) | 2023-12-08 |
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