CN111822598A - Stamping die's cooling device and stamping die - Google Patents
Stamping die's cooling device and stamping die Download PDFInfo
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- CN111822598A CN111822598A CN202010707709.0A CN202010707709A CN111822598A CN 111822598 A CN111822598 A CN 111822598A CN 202010707709 A CN202010707709 A CN 202010707709A CN 111822598 A CN111822598 A CN 111822598A
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- oil
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- piston cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
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- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of dies, and particularly relates to a cooling device of a stamping die and the stamping die, wherein the cooling device of the stamping die comprises a lower bottom plate, a support column and an upper bottom plate; the lower bottom plate is connected with the upper bottom plate through four support columns; the upper bottom plate is symmetrically provided with air cylinders, and the lower ends of the piston rod ends of the two air cylinders are provided with movable dies; the upper plate surface of the lower bottom plate is provided with a fixed die; the fixed mould is provided with an oil supply unit at one side in the width direction; the oil supply unit comprises a first oil collecting tank, a first piston rod and a first spring; a plurality of first oil transportation channels are formed in the fixed die; the outer side of the first oil collecting groove is attached to one side wall of the fixed mold in the width direction and the inner corner side wall of the supporting column, the first oil collecting groove is internally and symmetrically fixedly connected with the first piston cylinder, an oil inlet hole and an oil outlet hole are formed in the outer ring of the first piston cylinder, the oil outlet hole is communicated with a plurality of first oil conveying channels formed in the fixed mold, and the inner bottom surface of the first piston cylinder is connected with the first piston rod through a spring.
Description
Technical Field
The invention belongs to the technical field of dies, and particularly relates to a cooling device of a stamping die and the stamping die.
Background
Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation thereof, thereby obtaining a desired part. The stamping die is a special process equipment for processing materials into parts (or semi-finished products) in cold stamping processing. Among them, the high-speed precision stamping process is a mature technology widely applied in the manufacturing process of parts in the electronic industry, but because of the motion production under the high-speed condition, the stamping die will generate "heat" after high-speed friction, which has existed in the industry for a long time, and the generation of "heat" will cause some problems as follows: after the stamping die generates heat under high-speed operation, the stamping head in the stamping convex die is frequently broken, so that frequent maintenance and replacement are required, and the cost of the stamping die is increased and quality control and management holes are caused; because the problem of "heat" can not be effectively improved, the material selection of the stamping part is limited, so that the material cost cannot be effectively reduced, such as being limited to stainless steel, copper and the like.
2018114206421, a cooling pipeline is disposed inside the high-speed stamping die, a cooling liquid flows through the cooling pipeline, the starting end of the cooling pipeline is a cooling liquid inlet, the terminal of the cooling pipeline is a cooling liquid outlet, a temperature sensor for monitoring the temperature inside the high-speed stamping die is disposed inside the high-speed stamping die, the cooling liquid in the cooling pipeline can conduct heat generated in the stamping process out of the high-speed stamping die in time in a heat exchange manner, so as to reduce the temperature of the high-speed stamping die, and a control device is used to control an infusion pump to adjust the flow of the cooling liquid according to the temperature information monitored by the temperature sensor, so as to keep the temperature of the high-speed stamping die within a certain range, thereby ensuring the stamping precision and the production efficiency, the deformation and damage of the high-speed stamping die can be reduced, and the service life of the high-speed stamping die is prolonged; when the cooling device cools the die, extra power is needed to send cooling liquid, the work done when the stamping die moves up and down cannot be effectively utilized, so that the production and processing cost is increased, and the blank cannot be easily stamped.
Disclosure of Invention
The invention aims to provide a cooling device of a stamping die and the stamping die, which push cooling oil into a fixed die and a movable die by utilizing the work done by the movable die when the movable die stamps a plate, and realize the recycling of the cooling oil.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cooling device of a stamping die comprises a lower bottom plate, a support pillar and an upper bottom plate; the lower bottom plate is connected with the upper bottom plate through four support columns, and the cross section of each support column is in an L shape; the upper bottom plate is symmetrically provided with air cylinders, piston rods of the air cylinders penetrate through the upper bottom plate and extend to the lower bottom plate, the lower ends of the end parts of the piston rods of the two air cylinders are provided with movable dies, and four right-angle positions of the movable dies are connected to the side walls of the inner corners of the supporting columns in a sliding manner; the upper plate surface of the lower bottom plate is provided with a fixed die; the fixed mould is provided with an oil supply unit at one side in the width direction; the oil supply unit comprises a first oil collecting groove, a first piston cylinder, a first piston rod and a first spring; a plurality of first oil conveying channels are formed in the fixed die; the oil collecting groove outer side is attached to one side wall of the fixed mold in the width direction and the inner corner side wall of the supporting column, the piston cylinder is symmetrically and fixedly connected into the oil collecting groove, an oil inlet hole and an oil outlet hole are formed in the outer ring of the piston cylinder, the oil inlet hole of the piston cylinder is located above the oil outlet hole of the piston cylinder, the oil outlet holes are communicated with a plurality of oil conveying channels formed in the fixed mold, and the inner bottom surface of the piston cylinder is connected with a piston rod through a spring.
Preferably, the fixed die is provided with an oil return unit on the other side in the width direction; the oil return unit comprises a second oil collecting tank, a second piston cylinder, a second piston rod, a second spring and an oil return pipe; the outer side of the second oil collecting groove is attached to the other side wall of the fixed mold in the width direction and the inner corner side wall of the supporting column, a second piston cylinder is symmetrically and fixedly connected in the second oil collecting groove, an oil inlet hole and an oil outlet hole are formed in the outer ring of the second piston cylinder, the oil inlet hole of the second piston cylinder is positioned above the oil outlet hole of the second piston cylinder, the oil outlet hole of the second piston cylinder is communicated with a plurality of first oil conveying channels formed in the fixed mold, and the inner bottom surface of the second piston cylinder is connected with a second piston rod through a second spring; an oil outlet hole of the piston cylinder II is communicated with an oil inlet end of an oil return pipe, the other end of the oil return pipe penetrates through the side wall of the support column, and an oil return cavity is formed in one side, extending to the upper end face of the movable die, of the oil outlet end of the oil return pipe; a plurality of second oil conveying channels are formed in the communicating fixed die of the oil return cavity, and outlet ends of the second oil conveying channels are located above the first oil collecting groove.
Preferably, the horizontal height of the upper end face of the first piston rod is greater than that of the upper end face of the second piston rod, and the height difference is half of the movement stroke distance of the first piston rod.
Preferably, the oil outlet end of the second oil conveying channel is opposite to the inner corner side wall of the support column, the oil guide groove is formed in the inner corner side wall of the support column in the vertical direction, and the lower end of the oil guide groove is located in the first oil collecting groove.
Preferably, the fixed die is provided with a lubricating unit; the lubricating unit comprises a gear, a rack, a rotating shaft, a pipeline, a sleeve and a sector plate; the rack rigid coupling is on the vertical lateral wall of support column, rack and gear engagement, the central point of gear puts the rigid coupling axis of rotation, the axis of rotation runs through the fixed mould and stretches into in the sleeve of oil return intracavity, it has the sector plate to lie in the cover on the position in the axis of rotation, and telescopic both ends rigid coupling is on the vertical lateral wall of oil return chamber, set up the inlet port and the oil outlet that are the angle on the sleeve, telescopic oil outlet one end intercommunication pipeline's oil feed end, the end that produces oil of pipeline stretches to on the interior turning lateral wall of support column, and the end that produces oil of pipeline flushes with the vertical lateral wall of fixed mould.
Preferably, the rack is provided with a toothless part, and the toothed parts on the rack are arranged on the rack at intervals.
A kind of stamping die, this stamping die is suitable for the cooling device of the above-mentioned stamping die, this stamping die is made up of fixed mould and movable mould; a plurality of first grooves are formed in the die cavity in the fixed die, and third springs and push plates are arranged in the first grooves; the push plate is connected to the inner bottom surface of the first groove through a third spring; and a third oil conveying channel is formed in the movable die, the oil inlet end of the third oil conveying channel is communicated with a second oil conveying channel, and the oil outlet end of the third oil conveying channel is positioned on the lower end face of the movable die.
Preferably, an oil return channel is formed at a position, close to the second oil collecting groove, of the inner corner of the fixed die, an oil inlet end of the oil return channel is communicated with the die cavity of the fixed die, and an oil outlet end of the oil return channel is communicated with the interior of the second oil collecting groove.
The invention has the beneficial effects that:
the piston rod is pressed down through the movable die, the cooling oil in the oil collecting groove is discharged into the oil conveying channel, the fixed die is cooled, and meanwhile, the piston rods below the movable die discharge the cooling oil in the oil collecting groove II into the oil return cavity and the oil conveying channel II, and the movable die is cooled.
When the movable die moves towards the fixed die, the movable die presses a second piston rod downwards, the second piston rod presses cooling oil in a second piston cylinder into an oil return pipe, the cooling oil flows into an oil return cavity from the oil return pipe, and when the cooling oil flows through the oil return pipe, the cooling oil is radiated through the oil return pipe; and cooling oil flows into the second oil conveying channel from the oil return cavity, and simultaneously the cooling oil cools the movable die, and then the cooling oil flows into the first oil collecting tank from the oil outlet end of the second oil conveying channel, so that the cyclic utilization of the cooling oil is realized.
Drawings
FIG. 1 is a perspective view of a cooling device of the present invention in cooperation with a stamping die;
FIG. 2 is an isometric view of a cooling device of the present invention in cooperation with a stamping die;
FIG. 3 is a cross-sectional view of the cooling device of the present invention in cooperation with a stamping die;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
FIG. 6 is an enlarged view of a portion of FIG. 3 at C;
FIG. 7 is an enlarged view of a portion of FIG. 3 at D;
illustration of the drawings: the oil return device comprises a lower bottom plate 1, a support column 2, an oil guide groove 21, an upper bottom plate 3, an air cylinder 31, a movable die 4, an oil return cavity 41, a second oil conveying channel 42, a third oil conveying channel 421, a fixed die 5, a first oil conveying channel 51, a first groove 52, a third spring 521, a push plate 522, an oil return channel 53, an oil supply unit 6, a first oil collecting groove 61, a first piston cylinder 62, a first piston rod 63, a first spring 64, an oil return unit 7, a second oil collecting groove 71, a second piston cylinder 72, a second piston rod 73, a second spring 74, an oil return pipe 75, a lubricating unit 8, a gear 81, a rack 82, a toothless part 821, a toothed part 822, a rotating shaft 83, a pipeline 84, a sleeve 85 and a sector plate 86.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specific examples are given below.
Referring to fig. 1 to 7, a cooling apparatus for a stamping die includes a lower base plate 1, support pillars 2, and an upper base plate 3; the lower bottom plate 1 is connected with the upper bottom plate 3 through four support columns 2, and the cross section of each support column 2 is in an L shape; the upper bottom plate 3 is symmetrically provided with air cylinders 31, piston rods of the air cylinders 31 penetrate through the upper bottom plate 3 and extend to the lower bottom plate 1, the lower ends of the piston rod ends of the two air cylinders 31 are provided with movable molds 4, and four right-angle positions of the movable molds 4 are slidably connected to the side walls of the inner corners of the support columns 2; the upper plate surface of the lower bottom plate 1 is provided with a fixed die 5; the fixed die 5 is provided with an oil supply unit 6 at one side in the width direction; the oil supply unit 6 comprises a first oil collecting groove 61, a first piston cylinder 62, a first piston rod 63 and a first spring 64; a plurality of first oil transportation channels 51 are arranged in the fixed die 5; the outer side of the first oil collecting groove 61 is attached to one side wall of the fixed mold 5 in the width direction and the inner corner side wall of the support column 2, the first piston cylinder 62 is symmetrically and fixedly connected in the first oil collecting groove 61, an oil inlet hole and an oil outlet hole are formed in the outer ring of the first piston cylinder 62, the oil inlet hole of the first piston cylinder 62 is positioned above the oil outlet hole of the first piston cylinder 62, the oil outlet hole is communicated with a plurality of first oil conveying channels 51 formed in the fixed mold 5, and the inner bottom surface of the first piston cylinder 62 is connected with a first piston rod 63 through a first spring 64; by filling cooling oil into the first oil collecting groove 61, the cooling oil flows into the first piston cylinder 62 from an oil inlet of the first piston cylinder 62, when the movable die 4 moves towards the fixed die 5, the movable die 4 presses the first piston rod 63 downwards, the first piston rod 63 presses the cooling oil of the first piston cylinder 62 into the first oil conveying channel 51 in the fixed die 5, the first piston rod 63 is extruded for multiple times through the movable die 4, the cooling oil intermittently flows into the first oil conveying channel 51, the cooling oil and the fixed die 5 are subjected to cold and heat exchange, the temperature of the fixed die 5 is kept at a certain temperature, and the fixed die 5 is prevented from being heated by friction of a stamped plate vehicle after the fixed die 5 works for a long time, so that the fixed die 5 is thermally expanded and deformed to influence the accuracy of a stamped blank.
As a specific embodiment of the present invention, the fixed die 5 is provided with an oil return unit 7 on the other side in the width direction; the oil return unit 7 comprises a second oil collecting groove 71, a second piston cylinder 72, a second piston rod 73, a second spring 74 and an oil return pipe 75; the outer side of the second oil collecting groove 71 is attached to the other side wall of the fixed mold 5 in the width direction and the inner corner side wall of the support column 2, a second piston cylinder 72 is symmetrically and fixedly connected in the second oil collecting groove 71, an oil inlet hole and an oil outlet hole are formed in the outer ring of the second piston cylinder 72, the oil inlet hole of the second piston cylinder 72 is positioned above the oil outlet hole of the second piston cylinder 72, the oil outlet hole of the second piston cylinder 72 is communicated with a plurality of first oil conveying channels 51 formed in the fixed mold 5, and the inner bottom surface of the second piston cylinder 72 is connected with a second piston rod 73 through a second spring 74; an oil outlet hole of the second piston cylinder 72 is communicated with an oil inlet end of an oil return pipe 75, the other end of the oil return pipe 75 penetrates through the side wall of the support column 2, and an oil return cavity 41 is formed in one side, extending to the upper end face of the movable die 4, of the oil outlet end of the oil return pipe 75; the oil return cavity 41 is communicated with a plurality of second oil conveying channels 42 arranged in the fixed die 5, and the outlet ends of the second oil conveying channels 42 are positioned above the first oil collecting groove 61; the cooling oil of the first oil collecting groove 61 flows into the second oil collecting groove 71 from the first oil conveying channel 51, then the cooling oil flows into the second piston cylinder 72 from an oil inlet hole of the second piston cylinder 72, when the movable die 4 moves towards the fixed die 5, the movable die 4 presses the second piston rod 73 downwards, the second piston rod 73 presses the cooling oil in the second piston cylinder 72 into the oil return pipe 75, the cooling oil flows into the oil return cavity 41 from the oil return pipe 75, and when the cooling oil flows through the oil return pipe 75, the cooling oil is radiated through the oil return pipe 75; the cooling oil flows into the second oil conveying channel 42 from the oil return cavity 41, the cooling oil cools the movable die 4, and then the cooling oil flows into the first oil collecting groove 61 from the oil outlet end of the second oil conveying channel 42, so that the recycling of the cooling oil is realized.
As an embodiment of the present invention, the horizontal height of the upper end surface of the first piston rod 63 is greater than that of the upper end surface of the second piston rod 73, and the height difference is half of the movement stroke distance of the first piston rod 63; through the design difference in height, when making movable mould 4 remove downwards, movable mould 4 pushes down piston rod 63 earlier, makes the coolant oil of a piston cylinder 62 get into oil transfer passageway 51 No. one, and movable mould 4 back pressure piston rod 73 No. two, makes the coolant oil in No. two oil sumps 71 in time flow into oil return chamber 41 from returning oil pipe 75, avoids No. two oil sumps 71 oil levels to be less than the inlet port of No. two piston cylinders 72, leads to failing in time to flow into the coolant oil in oil return chamber 41, and the cooling effect of movable mould 4 is not good.
As a specific embodiment of the present invention, the oil outlet end of the second oil conveying channel 42 is opposite to the inner corner side wall of the supporting column 2, the inner corner side wall of the supporting column 2 is provided with an oil guide groove 21 in the vertical direction, and the lower end of the oil guide groove 21 is located in the first oil collecting groove 61; through the relative design of the end department of producing oil with No. two oil delivery passageway 42 and the interior corner lateral wall of support column 2 for when the cooling oil flows out, to carrying out lubrication treatment between the interior corner lateral wall of support column 2 and the vertical lateral wall of movable mould 4, simultaneously through leading oil groove 21, make from No. two oil delivery passageway 42 outflow cooling oil concentrate flow into No. one oil catch bowl 61 in, avoid the cooling oil outflow, pollute the cooling device environment, and cause the waste of cooling oil.
As a specific embodiment of the present invention, a lubricating unit 8 is provided on the fixed die 5; the lubricating unit 8 comprises a gear 81, a rack 82, a rotating shaft 83, a pipe 84, a sleeve 85 and a sector plate 86; the rack 82 is fixedly connected to the vertical side wall of the support column 2, the rack 82 is meshed with the gear 81, the central position of the gear 81 is fixedly connected with a rotating shaft 83, the rotating shaft 83 penetrates through the fixed mold 5 and extends into a sleeve 85 in the oil return cavity 41, a sector plate 86 is sleeved on the rotating shaft 83 at the inner part of the sleeve, two ends of the sleeve 85 are fixedly connected to the vertical side wall of the oil return cavity 41, an oil inlet hole and an oil outlet hole which form an angle of 60 degrees are formed in the sleeve 85, one end of the oil outlet hole of the sleeve 85 is communicated with the oil inlet end of the pipeline 84, the oil outlet end of the pipeline 84 extends to the inner corner side wall of the support column 2, and the oil outlet end of the pipeline; when the movable die 4 moves towards the fixed die 5, the gear 81 on the movable die 4 is meshed with the rack 82 on the support column 2, the gear 81 drives the sector plate 86 to rotate through the rotating shaft 83, the sector plate 86 indirectly communicates and closes the oil inlet hole and the oil outlet hole in the sleeve 85 when rotating, when the oil inlet hole and the oil outlet hole in the sleeve 85 are communicated, the cooling oil in the oil return cavity 41 flows into the sleeve 85 and flows into a gap between the fixed die 5 and the support column 2 from the pipeline 84, the movable die 4 and the support column 2 are lubricated, the abrasion between the movable die 4 and the support column 2 is reduced, and the service life of the cooling device is prolonged.
As a specific embodiment of the present invention, the rack 82 is provided with a non-toothed portion 821, and the toothed portions 822 of the rack 82 are arranged on the rack 82 at intervals; through the interval arrangement design of non-tooth portion 821 and toothed portion 822 for gear 81 indirectly rotates, thereby coolant oil indirectness flows out from pipeline 84, carries out the cooling oil lubrication down between the assurance movable mould 4 and support column 2, improves the cooling effect of coolant oil to movable mould 4.
A kind of stamping die, this stamping die is suitable for the cooling device of the above-mentioned stamping die, this stamping die is made up of fixed mould 5 and movable mould 4; a plurality of first grooves 52 are formed in the die cavity in the fixed die 5, and a third spring 521 and a push plate 522 are arranged in each first groove 52; the push plate 522 is connected to the inner bottom surface of the first groove 52 through a third spring 521; a third oil conveying channel 421 is formed in the movable die 4, the oil inlet end of the third oil conveying channel 421 is communicated with the second oil conveying channel 42, and the oil outlet end of the third oil conveying channel 421 is positioned on the lower end face of the movable die 4; through the third spring 521 and the push plate 522 of the first groove 52, a punched blank is easier to separate from a die cavity of the fixed die 5, the labor force of an operator is reduced, and meanwhile, cooling oil flows to the lower end face of the movable die 4 from the third oil conveying channel 421, so that the cooling oil forms a layer of oil film on a punched plate trolley, the friction force between the movable die 4 and a punched plate is reduced, and the abrasion of the movable die 4 is reduced.
As a specific embodiment of the present invention, an oil return channel 53 is provided at a position close to the second oil collecting groove 71 at the inner corner of the fixed mold 5, an oil inlet end of the oil return channel 53 is communicated with the mold cavity of the fixed mold 5, and an oil outlet end of the oil return channel 53 is communicated with the interior of the second oil collecting groove 71; by opening the oil return passage 53, the excess cooling oil flowing into the cavity of the fixed mold 5 from the third oil delivery passage 421 flows into the second oil sump 71, so that the cooling oil in the cavity of the fixed mold 5 can be recovered and utilized.
The working principle is as follows: by filling cooling oil into the first oil collecting groove 61, the cooling oil flows into the first piston cylinder 62 from an oil inlet of the first piston cylinder 62, when the movable die 4 moves towards the fixed die 5, the movable die 4 presses the first piston rod 63 downwards, the first piston rod 63 presses the cooling oil of the first piston cylinder 62 into the first oil conveying channel 51 in the fixed die 5, the first piston rod 63 is extruded for multiple times through the movable die 4, the cooling oil intermittently flows into the first oil conveying channel 51, the cooling oil and the fixed die 5 are subjected to cold and heat exchange, the temperature of the fixed die 5 is kept at a certain temperature, and the fixed die 5 is prevented from being heated by friction with a stamped plate vehicle after the fixed die 5 works for a long time, so that the fixed die 5 is subjected to thermal expansion deformation to influence the accuracy of a stamped blank; after the cooling oil in the first oil delivery passage 51 is full, the cooling oil flows into the second oil collecting groove 71 from the first oil delivery passage 51, then the cooling oil flows into the second piston cylinder 72 from an oil inlet hole of the second piston cylinder 72, when the movable mold 4 moves towards the fixed mold 5, the movable mold 4 presses the second piston rod 73 downwards, the second piston rod 73 presses the cooling oil in the second piston cylinder 72 into the oil return pipe 75, the cooling oil flows into the oil return cavity 41 from the oil return pipe 75, and when the cooling oil flows through the oil return pipe 75, the cooling oil is radiated through the oil return pipe 75; the cooling oil flows into the second oil conveying channel 42 from the oil return cavity 41, the cooling oil cools the movable die 4, and then the cooling oil flows into the first oil collecting groove 61 from the oil outlet end of the second oil conveying channel 42, so that the cyclic utilization of the cooling oil is realized; when the cooling oil flows out from the oil outlet end of the second oil conveying channel 42, the oil outlet end of the second oil conveying channel 42 is designed to be opposite to the inner corner side wall of the support column 2, so that when the cooling oil flows out, the lubricating treatment is performed between the inner corner side wall of the support column 2 and the vertical side wall of the movable mold 4, and meanwhile, the cooling oil flowing out from the second oil conveying channel 42 flows into the first oil collecting groove 61 in a centralized manner through the oil guide groove 21, so that the cooling oil is prevented from flowing out, the environment of a cooling device is polluted, and the waste of the cooling oil is avoided; meanwhile, the fixed die 5 and the supporting post 2 are lubricated by the lubricating unit 8, when the movable die 4 moves towards the fixed die 5, the gear 81 on the movable die 4 is meshed with the rack 82 on the supporting post 2, the gear 81 drives the sector plate 86 to rotate through the rotating shaft 83, the oil inlet hole and the oil outlet hole on the sleeve 85 are indirectly communicated and closed when the sector plate 86 rotates, when the oil inlet hole and the oil outlet hole on the sleeve 85 are communicated, the cooling oil of the oil return cavity 41 flows into the sleeve 85 and flows into a gap between the fixed die 5 and the supporting post 2 from the pipeline 84, the movable die 4 and the supporting post 2 are lubricated, the abrasion between the movable die 4 and the supporting post 2 is reduced, and the service life of the cooling device is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A cooling device of a stamping die is characterized in that: comprises a lower bottom plate (1), a support column (2) and an upper bottom plate (3); the lower bottom plate (1) is connected with the upper bottom plate (3) through four support columns (2), and the cross section of each support column (2) is L-shaped; the upper bottom plate (3) is symmetrically provided with air cylinders (31), piston rods of the air cylinders (31) penetrate through the upper bottom plate (3) and extend to the lower bottom plate (1), the lower ends of the end parts of the piston rods of the two air cylinders (31) are provided with movable molds (4), and four right angles of each movable mold (4) are slidably connected to the side wall of an inner corner of each supporting column (2); the upper plate surface of the lower bottom plate (1) is provided with a fixed die (5); an oil supply unit (6) is arranged on one side of the fixed die (5) in the width direction; the oil supply unit (6) comprises a first oil collecting groove (61), a first piston cylinder (62), a first piston rod (63) and a first spring (64); a plurality of first oil conveying channels (51) are arranged in the fixed die (5); a No. one oil catch bowl (61) outside is attached on a lateral wall of fixed mould (5) in width direction and the inside corner lateral wall of support column (2), a piston cylinder (62) of symmetry rigid coupling in No. one oil catch bowl (61), set up inlet port and oil outlet on the outer lane of a piston cylinder (62), the inlet port of a piston cylinder (62) is located the oil outlet top of a piston cylinder (62), a plurality of oil transportation passageway (51) of seting up in oil outlet intercommunication fixed mould (5), and piston cylinder (62) inner bottom is connected with a piston rod (63) through a spring (64).
2. A cooling device of a press die according to claim 1, wherein: an oil return unit (7) is arranged on the other side of the fixed die (5) in the width direction; the oil return unit (7) comprises a second oil collecting groove (71), a second piston cylinder (72), a second piston rod (73), a second spring (74) and an oil return pipe (75); the outer side of the second oil collecting groove (71) is attached to the other side wall of the fixed mold (5) in the width direction and the inner corner side wall of the supporting column (2), a second piston cylinder (72) is symmetrically and fixedly connected in the second oil collecting groove (71), an oil inlet and an oil outlet are formed in the outer ring of the second piston cylinder (72), the oil inlet of the second piston cylinder (72) is located above the oil outlet of the second piston cylinder (72), the oil outlet of the second piston cylinder (72) is communicated with a plurality of first oil conveying channels (51) formed in the fixed mold (5), and the inner bottom surface of the second piston cylinder (72) is connected with a second piston rod (73) through a second spring (74); an oil outlet hole of the second piston cylinder (72) is communicated with an oil inlet end of an oil return pipe (75), the other end of the oil return pipe (75) penetrates through the side wall of the support column (2), and an oil return cavity (41) is formed in one side, extending towards the upper end face of the movable die (4), of the oil outlet end of the oil return pipe (75); the oil return cavity (41) is communicated with a plurality of second oil conveying channels (42) formed in the fixed die (5), and the outlet ends of the second oil conveying channels (42) are positioned above the first oil collecting groove (61).
3. A cooling device of a press die according to claim 1, wherein: the horizontal height of the upper end face of the first piston rod (63) is larger than that of the upper end face of the second piston rod (73), and the height distance difference is half of the movement stroke distance of the first piston rod (63).
4. A cooling device of a press die according to claim 2, wherein: the oil outlet end of the second oil conveying channel (42) is opposite to the inner corner side wall of the support column (2), the oil guide groove (21) is formed in the inner corner side wall of the support column (2) in the vertical direction, and the lower end of the oil guide groove (21) is located in the first oil collecting groove (61).
5. A cooling device of a press die according to claim 1, wherein: a lubricating unit (8) is arranged on the fixed die (5); the lubricating unit (8) comprises a gear (81), a rack (82), a rotating shaft (83), a pipeline (84), a sleeve (85) and a sector plate (86); rack (82) rigid coupling is on the vertical lateral wall of support column (2), rack (82) and gear (81) meshing, the central point of gear (81) puts rigid coupling axis of rotation (83), axis of rotation (83) run through fixed mould (5) and stretch into in the sleeve (85) in the time oil return chamber (41), it has sector plate (86) to lie in the cover on the position in cover on axis of rotation (83), and the both ends rigid coupling of sleeve (85) is on the vertical lateral wall of time oil return chamber (41), set up oil inlet and the oil outlet that is 60 jiaos on sleeve (85), the oil inlet end of oil outlet one end intercommunication pipeline (84) of sleeve (85), the oil outlet end of pipeline (84) stretches to on the interior corner lateral wall of support column (2), and the oil outlet end of pipeline (84) flushes with the vertical lateral wall of fixed mould (5).
6. A cooling device of a press die according to claim 5, wherein: the rack (82) is provided with a non-toothed part (821), and the toothed parts (822) on the rack (82) are arranged on the rack (82) at intervals.
7. A stamping die is characterized in that: the stamping die is suitable for the cooling device of the stamping die in any one of claims 1 to 6, and consists of a fixed die (5) and a movable die (4); a plurality of first grooves (52) are formed in a die cavity in the fixed die (5), and third springs (521) and push plates (522) are arranged in the first grooves (52); the push plate (522) is connected to the inner bottom surface of the first groove (52) through a third spring (521); no. three oil transportation passageways (421) are seted up to movable mould (4) inside, and No. three oil transportation passageways (421) oil feed end intercommunication No. two oil transportation passageways (42), and No. three oil transportation passageways (421) oil output end is located the lower terminal surface of movable mould (4).
8. A cooling device of a press die according to claim 7, wherein: an oil return channel (53) is formed in the position, close to the second oil collecting groove (71), of the inner corner of the fixed die (5), the oil inlet end of the oil return channel (53) is communicated with the die cavity of the fixed die (5), and the oil outlet end of the oil return channel (53) is communicated with the interior of the second oil collecting groove (71).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010707709.0A CN111822598A (en) | 2020-07-22 | 2020-07-22 | Stamping die's cooling device and stamping die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010707709.0A CN111822598A (en) | 2020-07-22 | 2020-07-22 | Stamping die's cooling device and stamping die |
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| CN111822598A true CN111822598A (en) | 2020-10-27 |
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| CN202010707709.0A Pending CN111822598A (en) | 2020-07-22 | 2020-07-22 | Stamping die's cooling device and stamping die |
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| CN113333595A (en) * | 2021-06-28 | 2021-09-03 | 徐州骏畅机电科技有限公司 | Lubricating oil charging equipment for electro-mechanical machining |
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Application publication date: 20201027 |
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