CN114160643B - Aluminum alloy workpiece extrusion forming device - Google Patents
Aluminum alloy workpiece extrusion forming device Download PDFInfo
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- CN114160643B CN114160643B CN202111230460.XA CN202111230460A CN114160643B CN 114160643 B CN114160643 B CN 114160643B CN 202111230460 A CN202111230460 A CN 202111230460A CN 114160643 B CN114160643 B CN 114160643B
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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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
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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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Extrusion Of Metal (AREA)
Abstract
The invention discloses an extrusion forming device for aluminum alloy workpieces, which comprises a rack, an upper die structure, a lower die structure, a water cooling structure and a controller, wherein the upper die structure is fixedly arranged at the top of the rack, the lower die structure is fixedly arranged at the bottom of the rack, the lower die structure comprises a lower die platform, and two support legs are fixedly arranged at the bottom of the lower die platform; the top of the lower die platform is provided with two demoulding holes; the left side die and the right side die are arranged on the left side and the right side of the lower die platform in a sliding mode, the left side die and the right side die are fixedly connected with the two sliding gears respectively, demolding grooves are formed in the bottoms of the left side die and the right side die, the left side die and the right side die are in a die closing state and a die opening state, and when the left side die and the right side die are in the die closing state, the demolding grooves formed in the bottoms of the left side die and the right side die are opposite to demolding holes formed in the top of the lower die platform; the extrusion forming device disclosed by the invention has the demolding structure and the water cooling structure, has good demolding and cooling effects, and can ensure the forming quality of an aluminum alloy workpiece.
Description
Technical Field
The invention relates to the technical field of production and processing of aluminum alloy parts, in particular to an extrusion forming device for an aluminum alloy workpiece.
Background
The aluminum alloy is an alloy which takes aluminum as a base material and is added with a certain amount of other alloy chemical elements, and is one of light metal materials. In addition to the general characteristics of aluminum, aluminum alloys have certain alloy specific characteristics due to the differences in the types and amounts of alloying chemical elements added. The aluminum alloy can be used as a structural material and has wide application in the fields of aerospace, aviation, transportation, construction, electromechanics and the like.
In the production and processing process of the aluminum alloy workpiece, the aluminum alloy raw material is usually subjected to hot extrusion molding, so that workpieces with different shapes and structures can be obtained according to the different shapes and structures of the die, however, in the prior art, the extrusion molding process of the aluminum alloy workpiece has the following problems: firstly, the finished product is difficult to demould, the demoulding structure of the existing aluminum alloy extrusion forming device is generally arranged in the bottom die, the bottom die is in a non-integrated structure due to the arrangement of the demoulding structure, and the demoulding structure can generate displacement when being pressed in the extrusion process of an upper die, so that the lower surface quality of the finished product of an aluminum alloy workpiece is influenced; secondly, after the extrusion forming of the aluminum alloy, the extrusion stress of the finished product and the side surface of the die is large, the conventional demolding structure is difficult to realize demolding, and forced demolding can affect the quality of the side surface of the finished product of the workpiece; in addition, the problem that stress deformation and the like are easily caused due to uneven cooling of the finished product of the aluminum alloy workpiece after extrusion forming of the aluminum alloy is solved, and the quality of the finished product of the aluminum alloy workpiece is influenced.
Disclosure of Invention
The invention provides an extrusion forming device for an aluminum alloy workpiece, aiming at the problems in the related art and aiming at overcoming the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
an extrusion forming device for aluminum alloy workpieces comprises a rack, an upper die structure, a lower die structure, a water cooling structure and a controller, wherein the upper die structure is fixedly mounted at the top of the rack, the lower die structure is fixedly mounted at the bottom of the rack and comprises a lower die platform, two support legs are fixedly mounted at the bottom of the lower die platform, and the support legs are fixedly connected with the rack; the two leg supports are fixedly provided with motor mounting seats, the top ends of the motor mounting seats are fixedly provided with servo motors, output shaft keys of the servo motors are connected with gears, and the gears are rotatably arranged at the center of the bottom of the lower die platform through rotating shafts; two sides of the gear are respectively connected with sliding racks in a meshed manner, and the two sliding racks respectively extend out of the left side and the right side of the lower die platform; guide grooves are fixedly formed in two sides of the bottom of the lower die platform, the rack is arranged in the guide grooves in a sliding mode, and two demolding holes are formed in the top of the lower die platform; sliding mounting has left side mould and right side mould on the left and right sides of lower mould platform, left side mould and right side mould respectively with two slip gear fixed connection, the bottom of left side mould and right side mould sets up drawing of patterns recess, left side mould and right side mould have compound die and two states of die sinking, work as when left side mould and right side mould are in the compound die state, the drawing of patterns recess that left side mould and right side mould bottom set up is just to the drawing of patterns hole that the top of lower mould platform set up.
In the technical scheme, the upper die structure and the lower die structure are matched with each other to realize extrusion forming of the aluminum alloy workpiece, wherein a lower die platform in the lower die structure is integrally arranged and fixedly connected with the bottom of the frame, so that the quality of the lower surface of the aluminum alloy workpiece can be ensured; the side dies are arranged in a split mode, are driven by a servo motor, adopt a gear-rack transmission structure, have high precision, can ensure the synchronous motion of the left side die and the right side die, and ensure the precision of die assembly and die opening; the sliding rack and the guide groove are arranged in a sliding manner, so that the sliding rack is prevented from inclining; the setting of drawing of patterns recess makes things convenient for unnecessary aluminum alloy raw materials extrusion deformation to flow in, avoids aluminum alloy raw materials to extrude from the small gap between side form and the last mould at the extruded in-process and forms the limit burr, influences finished product quality.
Furthermore, the demoulding hole runs through the lower mould platform, the lower mould pressing structure further comprises two demoulding cylinders, the telescopic end of each demoulding cylinder is fixedly provided with a top block, and the diameter of each top block is the same as that of the demoulding hole.
Among the above-mentioned technical scheme, before the aluminum alloy extrusion begins, the upper surface of kicking block flushes with the top surface of lower mould platform, and aluminum alloy extruded in-process, aluminum alloy form two support ears in drawing of patterns recess, make things convenient for drawing of patterns cylinder ejecting the finished product through holding in the palm the ear.
Further, the upper die structure comprises an electric cylinder fixedly mounted at the top of the frame, and a guide plate is fixedly mounted at the output end of the electric cylinder; the left side and the right side of the guide plate are fixedly provided with guide sliding blocks, and the guide sliding blocks are in sliding connection with sliding grooves formed in the left side wall and the right side wall of the rack; the top downside fixed mounting of frame has the guide bar, the bottom fixed mounting of guide bar has the limiting plate, the guide plate passes through linear bearing slidable mounting on the guide bar, linear bearing's bottom is provided with the spring, the both ends of spring fixed connection linear bearing and limiting plate respectively.
In the technical scheme, the guide plate plays a guiding role, the guide slide blocks on the left side and the right side of the guide plate are in sliding fit with the sliding grooves on the left side wall and the right side wall of the rack, the guide rod is in sliding fit with the linear bearing, the guide effect of the guide plate is realized, and the two sliding structures are matched with each other, so that the guide precision of the guide plate is improved; the setting of spring plays the cushioning effect, can place upper and lower die and damage because assault, improves life.
Further, the upper die structure further comprises an upper die, the upper die is fixedly mounted on the bottom side of the guide plate through a fixing column, and the shape of the upper die is matched with a space formed by the left side die and the right side die when the upper die is in a die closing state.
Among the above-mentioned technical scheme, the shape of going up the mould and the space phase-match that left side mould and right side mould when being in the compound die state constitute, and closely cooperate, prevent that the aluminum alloy raw materials from extruding from the micro gap between side mould and the last mould at the extruded in-process and forming the side burr, influence finished product quality.
Further, the water cooling structure comprises a cooling liquid tank fixedly arranged on the right side of the rack, one side of a liquid inlet of the cooling liquid tank is communicated with the bottom end of the right side of the rack, and one side of a liquid outlet of the cooling liquid tank is connected with a pumping device through a pipeline; a liquid outlet support is fixedly arranged on the inner side of the rack; the liquid outlet end of the pumping device is communicated with the liquid outlet support through a pipeline.
In the technical scheme, the liquid inlet of the cooling liquid tank is communicated with the right bottom end of the rack, and the cooling liquid falling to the bottom end of the rack enters the cooling liquid tank through the through hole at the right bottom end of the rack and the liquid inlet of the cooling liquid tank; the pumping device extracts cooling liquid through a liquid outlet of the cooling liquid tank and enters the liquid outlet support through a pipeline.
Further, the liquid outlet support is annular, a hollow channel is arranged inside the liquid outlet support, the hollow channel is communicated with the liquid outlet end of the pumping device, the thickness of the liquid outlet support is twice of that of a finished product of an aluminum alloy workpiece, and two layers of liquid outlet nozzles are uniformly arranged on the inner side of the liquid outlet support in the circumferential direction.
In the technical scheme, the liquid outlet support is annular and hollow, a communication pipeline at one side of the liquid outlet support receives cooling liquid from the pumping device, and the cooling liquid fills the hollow channel in the whole liquid outlet support; two layers of liquid outlet nozzles uniformly arranged on the inner side of the liquid outlet support in the circumferential direction can spray cooling liquid around the circular aluminum alloy workpiece at the same time, so that the circumferential side of the aluminum alloy workpiece is synchronously cooled, and stress concentration and deformation are effectively prevented; the thickness of the liquid outlet support is set to be twice of the thickness of the finished product of the aluminum alloy workpiece, and the liquid outlet nozzles are arranged in two layers, so that the periphery of the aluminum alloy workpiece is completely covered by the cooling liquid spray.
Furthermore, one side that the coolant liquid incasement portion is close to the inlet is provided with first filter screen, one side that the coolant liquid incasement portion is close to the inlet is provided with the second filter screen.
Among the above-mentioned technical scheme, the setting of first filter screen prevents that the impurity of coolant liquid incasement from getting into pumping installations, and the setting of second filter screen prevents that the inside foreign particles of frame from getting into the coolant liquid case for coolant liquid in the coolant liquid case can recycle.
Further, the controller is respectively and electrically connected with the servo motor, the demoulding air cylinder, the electric cylinder and the pumping device.
Among the above-mentioned technical scheme, the controller can coordinate control servo motor, drawing of patterns cylinder, electronic jar and pumping device action, accomplishes aluminum alloy work piece extrusion.
The invention has the following beneficial effects:
1. according to the aluminum alloy extrusion die, the two demolding grooves are formed in the bottoms of the left side die and the right side die, in the aluminum alloy extrusion process, on one hand, the demolding grooves are arranged to facilitate the extrusion deformation inflow of redundant aluminum alloy raw materials, and the phenomenon that the aluminum alloy raw materials are extruded from small gaps between the side dies and the upper die to form side burrs in the extrusion process to influence the quality of finished products is avoided, on the other hand, in the aluminum alloy extrusion process, the aluminum alloy forms two support lugs in the demolding grooves, and a demolding cylinder is convenient to eject the finished products through the support lugs;
2. the split type side die is divided into a left side die and a right side die, wherein the left side die and the right side die are separated from each other under the driving of a driving device after the aluminum alloy is extruded and formed, so that the demolding is convenient to realize; the driving device adopts gear and rack transmission, has high precision and can ensure the synchronous motion of the left side die and the right side die.
3. This application has set up aluminum alloy work piece water-cooling structure, can not obtain timely cooling in order to prevent the aluminum alloy to and the cooling process is inhomogeneous, this application has set up annular water-cooling structure, and this structure can make the week side synchronous cooling of aluminum alloy work piece, the effectual appearance that has prevented stress concentration and deformation.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a front view of the lower die structure of the present invention;
FIG. 3 is a top view of the die pressing structure in a closed state according to the present invention;
FIG. 4 is a top view of the mold pressing structure in the mold opening state of the present invention;
FIG. 5 is a bottom cross-sectional view of the lower die structure of the present invention;
FIG. 6 is a side view of the lower die platform of the present invention;
FIG. 7 is a bottom view of the left mold of the present invention;
fig. 8 is a top view of the liquid outlet bracket of the invention.
In the figure: 1. a frame; 2. a lower die platform; 3. a support leg; 4. a motor mounting base; 5. a servo motor; 6. a gear; 7. a rotating shaft; 8. a sliding rack; 9. a guide groove; 10. demoulding holes; 11. demolding the groove; 12. a demoulding cylinder; 13, a top block; 14. an electric cylinder; 15. a guide plate; 16; a guide bar; 17. a limiting plate; 18. a linear bearing; 19. a spring; 20. an upper die; 21. fixing a column; 22. a coolant tank; 23. a pumping device; 24. liquid outlet support; 25. a hollow channel; 26. a liquid outlet nozzle; 27. a first filter screen; 28; a second filter screen; 29. a left side mold; 30. and the right side mold.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
Furthermore, the terms "substantially", and the like are intended to indicate that the relative terms are not necessarily strictly required, but may have some deviation. For example: "substantially equal" does not mean absolute equality, but because absolute equality is difficult to achieve in actual production and operation, certain deviations generally exist. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the invention provides an extrusion molding device for aluminum alloy workpieces, which comprises a frame 1, an upper die structure, a lower die structure, a water cooling structure and a controller, wherein the upper die structure is fixedly installed at the top of the frame 1, the lower die structure is fixedly installed at the bottom of the frame 1, the lower die structure comprises a lower die platform 2, two support legs 3 are fixedly installed at the bottom of the lower die platform 2, and the support legs 3 are fixedly connected with the frame 1; lower mould platform 2 has guaranteed lower mould platform 2's stability through two landing legs 3 fixed mounting in frame 1.
Specifically, referring to fig. 1, the upper die structure includes an electric cylinder 14 fixedly installed at the top of the frame 1, and a guide plate 15 is fixedly installed at an output end of the electric cylinder 14; the left side and the right side of the guide plate 15 are fixedly provided with guide sliders which are connected with chutes arranged on the left side wall and the right side wall of the rack 1 in a sliding manner; a guide rod 16 is fixedly mounted on the lower side of the top of the rack 1, a limiting plate 17 is fixedly mounted at the bottom end of the guide rod 16, the guide plate 15 is slidably mounted on the guide rod 16 through a linear bearing 18, a spring 19 is arranged at the bottom end of the linear bearing 18, and two ends of the spring 19 are fixedly connected with the linear bearing 18 and the limiting plate 17 respectively.
The guide plate 15 plays a guiding role, the guide slide blocks on the left side and the right side of the guide plate 15 are in sliding fit with the sliding chutes on the left side wall and the right side wall of the rack 1, the guide rod 16 is in sliding fit with the linear bearing 18, the guide effect of the guide plate 15 is realized, and the two sliding structures are matched with each other, so that the guide precision of the guide plate 15 is improved; the spring 19 plays a role in buffering, the upper and lower pressing dies can be prevented from being damaged due to impact, and the service life is prolonged.
Specifically, referring to fig. 1, the upper mold 20 is fixedly mounted on the bottom side of the guide plate 15 by fixing posts 21, and the upper mold 20 is shaped to fit a space defined by the left mold 29 and the right mold 30 in a clamped state.
The shape of the upper die 20 is matched with the space formed by the left die 29 and the right die 30 in a die closing state and is tightly matched with the space, so that the aluminum alloy raw material is prevented from being extruded from a small gap between the side die and the upper die 20 to form edge burrs in the extrusion process, and the quality of a finished product is prevented from being influenced.
Specifically, referring to fig. 1, the water cooling structure includes a cooling liquid tank 22 fixedly arranged on the right side of the rack 1, one side of a liquid inlet of the cooling liquid tank 22 is communicated with the bottom end of the right side of the rack 1, and one side of a liquid outlet of the cooling liquid tank 22 is connected with a pumping device 23 through a pipeline; a liquid outlet bracket 24 is fixedly arranged at the inner side of the frame 1; the liquid outlet end of the pumping device 23 is communicated with the liquid outlet bracket 24 through a pipeline.
A liquid inlet of the cooling liquid tank 22 is communicated with the right bottom end of the rack 1, and the cooling liquid falling from the bottom end of the rack 1 enters the cooling liquid tank 22 through a through hole at the right bottom end of the rack 1 and a liquid inlet of the cooling liquid tank 22; the pumping device 23 draws the cooling liquid through the outlet of the cooling liquid tank 22 and through a pipe into the interior of the liquid outlet bracket 24.
Specifically, referring to fig. 1, a first filter screen 27 is disposed on a side of the interior of the coolant tank 22 close to the liquid inlet, and a second filter screen 28 is disposed on a side of the interior of the coolant tank 22 close to the liquid inlet.
The first filter screen 27 prevents impurities in the cooling liquid tank 22 from entering the pumping device 23, and the second filter screen 28 prevents impurity particles inside the rack 1 from entering the cooling liquid tank 22, so that the cooling liquid in the cooling liquid tank 22 can be recycled.
Referring to fig. 2-7, a motor mounting seat 4 is fixedly mounted on the supports of the two support legs 3, a servo motor 5 is fixedly mounted at the top end of the motor mounting seat 4, an output shaft of the servo motor 5 is in keyed connection with a gear 6, and the gear 6 is rotatably mounted at the center of the bottom of the lower die platform 2 through a rotating shaft 7; two sides of the gear 6 are respectively connected with sliding racks 8 in a meshed manner, and the two sliding racks 8 respectively extend out of the left side and the right side of the lower die platform 2; guide grooves 9 are fixedly arranged on two sides of the bottom of the lower die platform 2, the rack is slidably arranged in the guide grooves 9, and two demoulding holes 10 are arranged on the top of the lower die platform 2; the left side die 29 and the right side die 30 are slidably mounted on the left side and the right side of the lower die platform 2, the left side die 29 and the right side die 30 are fixedly connected with the two sliding gears 6 respectively, the demolding grooves 11 are formed in the bottoms of the left side die 29 and the right side die 30, the left side die 29 and the right side die 30 have two states of die assembly and die opening, and when the left side die 29 and the right side die 30 are in the die assembly state, the demolding grooves 11 formed in the bottoms of the left side die 29 and the right side die 30 are right opposite to the demolding holes 10 formed in the top of the lower die platform 2.
The upper pressing die structure and the lower pressing die structure are matched with each other to realize extrusion molding of the aluminum alloy workpiece, wherein the lower die platform 2 in the lower pressing die structure is integrally arranged and fixedly connected with the bottom of the frame, so that the quality of the lower surface of the aluminum alloy workpiece can be ensured; the side dies are arranged in a split mode and driven by the servo motor 5, and a transmission structure of gears 6 and racks is adopted, so that the precision is high, the synchronous motion of the left side die 29 and the right side die 30 can be ensured, and the accuracy of die assembly and die opening is ensured; the sliding rack 8 and the guide groove 9 are arranged in a sliding manner, so that the sliding rack 8 is prevented from inclining; the arrangement of the demoulding groove 11 facilitates the extrusion deformation of redundant aluminum alloy raw materials, and avoids the phenomenon that the aluminum alloy raw materials are extruded from a small gap between the side mould and the upper mould 20 to form edge burrs in the extrusion process, so that the quality of a finished product is influenced.
Specifically, referring to fig. 2, the demolding hole 10 penetrates through the lower mold platform 2, the lower mold pressing structure further comprises two demolding cylinders 12, the demolding cylinders 12 are provided, the ejection block 13 is fixedly mounted at the telescopic end of the demolding cylinder 12, and the diameter of the ejection block 13 is the same as that of the demolding hole 10.
Before the aluminum alloy extrusion begins, the upper surface of kicking block 13 flushes with the top surface of lower mould platform 2, and aluminum alloy extrusion's in-process, aluminum alloy form two support ears in drawing of patterns recess 11, make things convenient for drawing of patterns cylinder 12 ejecting the finished product through holding in the palm the ear.
Specifically, referring to fig. 8, the liquid outlet support 24 is annular, a hollow channel 25 is arranged inside the liquid outlet support, the hollow channel 25 is communicated with the liquid outlet end of the pumping device 23, the thickness of the liquid outlet support 24 is twice of that of the finished aluminum alloy workpiece, and two layers of liquid outlet nozzles 26 are uniformly arranged on the inner side of the liquid outlet support 24 in the circumferential direction.
The liquid outlet support 24 is annular and hollow, a communication pipeline at one side of the liquid outlet support 24 receives cooling liquid from the pumping device 23, and the cooling liquid fills the hollow channel 25 in the whole liquid outlet support 24; the two layers of liquid outlet nozzles 26 uniformly arranged on the inner side of the liquid outlet support 24 in the circumferential direction can spray cooling liquid around the circular aluminum alloy workpiece at the same time, so that the circumferential side of the aluminum alloy workpiece is synchronously cooled, and stress concentration and deformation are effectively prevented; the thickness of the liquid outlet support 24 is twice of that of the finished aluminum alloy workpiece, and the liquid outlet nozzles 26 are arranged in two layers, so that the peripheral sides of the aluminum alloy workpiece are completely covered by cooling liquid spraying.
Specifically, the controller is electrically connected to the servo motor 5, the knock out cylinder 12, the electric cylinder 14, and the pumping device 23.
The controller can coordinate and control the servo motor 5, the demoulding cylinder 12, the electric cylinder 14 and the pumping device 23 to act, and extrusion forming of the aluminum alloy workpiece is completed.
The working process comprises the following steps: the servo motor 5 drives the gear 6 to rotate, the gear 6 drives the sliding racks 8 meshed with the gear to move, the two sliding racks 8 respectively drive the left side die 29 and the right side die 30 to move oppositely, so that the left side die 29 and the right side die 30 are in a die closing state, at the moment, the left side die 29, the right side die 30 and the lower die platform 2 form a forming space, and the left side die 29 and the right side die 30 are respectively fixed with the lower die platform 2 through fixing bolts (not shown in the figure); after cutting, the aluminum alloy bar raw material is sent into a heating device (not shown in the figure), after being heated by the heating device, the aluminum alloy bar raw material is sent to a forming space formed by a left side die 29, a right side die 30 and a lower die platform 2, and is vertically placed on the lower die platform 2, a controller controls an electric cylinder 14 to be started, the output end of the electric cylinder 14 pushes a guide plate 15 to move downwards, the guide plate 15 drives an upper die 20 to move downwards, the upper die 20 enters the forming space to extrude the aluminum alloy raw material and maintains the pressure for a certain time, in the process, the aluminum alloy raw material is extruded and deformed to flow into a demoulding groove 11, and the aluminum alloy flowing into the demoulding groove 11 forms two support lugs in the demoulding groove 11; the upper die 20 is lifted, the fixing bolt is removed, the servo motor 5 drives the gear 6 to rotate, the left side die 29 and the right side die 30 are driven to be separated through the sliding rack 8, and the left side die 29 and the right side die 30 are in a die opening state; the controller controls the demoulding cylinder 12 to act, and the ejector block 13 at the top of the demoulding cylinder 12 pushes the support lug to eject a finished product out, so that the whole demoulding process is completed; the demolding cylinder 12 lifts the aluminum alloy workpiece into the liquid outlet support 24, the pumping device 23 pumps cooling liquid into the hollow channel 25 in the liquid outlet support 24 through a pipeline, and the controller controls the nozzles to synchronously spray the cooling liquid, so that the peripheral side of the aluminum alloy workpiece is synchronously cooled; and (3) retracting the demoulding cylinder 12 to place the water-cooled aluminum alloy workpiece on the lower mould platform 2, performing subsequent cold treatment, and cutting off the support lugs on two sides of the aluminum alloy workpiece to obtain the aluminum alloy workpiece.
The foregoing is illustrative of the best mode contemplated for carrying out the present invention and the details not specifically mentioned are within the knowledge of one of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (8)
1. The utility model provides an aluminum alloy workpiece extrusion device, includes frame (1), goes up die structure, water-cooling structure and controller down, its characterized in that: an upper die structure is fixedly mounted at the top of the rack (1), a lower die structure is fixedly mounted at the bottom of the rack (1), the lower die structure comprises a lower die platform (2), two support legs (3) are fixedly mounted at the bottom of the lower die platform (2), and the support legs (3) are fixedly connected with the rack (1); a motor mounting seat (4) is fixedly mounted on the supports of the two supporting legs (3), a servo motor (5) is fixedly mounted at the top end of the motor mounting seat (4), an output shaft key of the servo motor (5) is connected with a gear (6), and the gear (6) is rotatably mounted at the center of the bottom of the lower die platform (2) through a rotating shaft (7); two sides of the gear (6) are respectively connected with sliding racks (8) in a meshed manner, and the two sliding racks (8) respectively extend out of the left side and the right side of the lower die platform (2); guide grooves (9) are fixedly arranged on two sides of the bottom of the lower die platform (2), the rack is arranged in the guide grooves (9) in a sliding manner, and two demoulding holes (10) are formed in the top of the lower die platform (2); slidable mounting has left side mould (29) and right side mould (30) on the left and right sides of lower mould platform (2), left side mould (29) and right side mould (30) respectively with two sliding gear (6) fixed connection, the bottom of left side mould (29) and right side mould (30) sets up drawing of patterns recess (11), left side mould (29) and right side mould (30) have compound die and die sinking two states, work as when left side mould (29) and right side mould (30) are in the compound die state, drawing of patterns recess (11) that left side mould (29) and right side mould (30) bottom set up are just to drawing of patterns hole (10) that the top of lower mould platform (2) set up.
2. The extrusion molding device for the aluminum alloy workpiece as recited in claim 1, wherein the demolding hole (10) penetrates through the lower mold platform (2), the lower mold structure further comprises two demolding cylinders (12), the number of the demolding cylinders (12) is two, the telescopic end of each demolding cylinder (12) is fixedly provided with an ejector block (13), and the diameter of each ejector block (13) is the same as that of the demolding hole (10).
3. An aluminum alloy workpiece extrusion forming device as recited in claim 2, characterized in that the upper die structure comprises an electric cylinder (14) fixedly mounted at the top of the frame (1), and the output end of the electric cylinder (14) is fixedly provided with a guide plate (15); the left side and the right side of the guide plate (15) are fixedly provided with guide sliding blocks, and the guide sliding blocks are in sliding connection with sliding grooves formed in the left side wall and the right side wall of the rack (1); the top downside fixed mounting of frame (1) has guide bar (16), the bottom fixed mounting of guide bar (16) has limiting plate (17), deflector (15) are through linear bearing (18) slidable mounting on guide bar (16), the bottom of linear bearing (18) is provided with spring (19), the both ends difference fixed connection linear bearing (18) and limiting plate (17) of spring (19).
4. An aluminum alloy workpiece extrusion molding apparatus as claimed in claim 3, wherein said upper die structure further comprises an upper die (20), said upper die (20) is fixedly mounted on the bottom side of the guide plate (15) by a fixing column (21), and the shape of said upper die (20) matches the space formed by the left die (29) and the right die (30) in the die-clamping state.
5. The extrusion forming device for the aluminum alloy workpieces as recited in claim 3, wherein the water cooling structure comprises a cooling liquid tank (22) fixedly arranged on the right side of the rack (1), one side of a liquid inlet of the cooling liquid tank (22) is communicated with the bottom end of the right side of the rack (1), and one side of a liquid outlet of the cooling liquid tank (22) is connected with a pumping device (23) through a pipeline; a liquid outlet support (24) is fixedly arranged on the inner side of the frame (1); the liquid outlet end of the pumping device (23) is communicated with the liquid outlet support (24) through a pipeline.
6. The extrusion molding device for aluminum alloy workpieces as recited in claim 5, wherein the liquid outlet support (24) is ring-shaped, a hollow channel (25) is arranged inside, the hollow channel (25) is communicated with the liquid outlet end of the pumping device (23), the thickness of the liquid outlet support (24) is twice of the thickness of the finished aluminum alloy workpiece, and two layers of liquid outlet nozzles (26) are uniformly arranged on the inner side of the liquid outlet support (24) in the circumferential direction.
7. The extrusion molding device for aluminum alloy workpieces as recited in claim 5, wherein a first filter screen (27) is disposed inside the cooling liquid tank (22) on a side close to the liquid inlet, and a second filter screen (28) is disposed inside the cooling liquid tank (22) on a side close to the liquid outlet.
8. The extrusion molding device for aluminum alloy workpieces as recited in claim 6, wherein the controller is electrically connected with the servo motor (5), the demolding cylinder (12), the electric cylinder (14) and the pumping device (23).
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| CN202111230460.XA CN114160643B (en) | 2021-10-22 | 2021-10-22 | Aluminum alloy workpiece extrusion forming device |
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