Disclosure of Invention
The invention aims to provide a rapid die-casting device and a rapid die-casting process for an aluminum alloy die-casting piece, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the quick die-casting equipment for the aluminum alloy die-casting comprises a bottom plate, wherein a lower die set is fixedly connected to the top of the bottom plate, an upper die set is arranged above the lower die set, a hydraulic rod is fixedly connected to the top of the upper die set, the hydraulic rod is fixedly connected with the bottom plate through an L-shaped rod, and two demoulding sets are arranged above the lower die set;
the demolding group comprises a connecting box, a sunken groove is formed in the top of the connecting box, two suckers are fixedly connected to the lower end of the connecting box, two sealing sheets are slidably connected to the inside of the connecting box, push rods are fixedly connected to the two sealing sheets, the two push rods are slidably connected with the connecting box, two wedge-shaped blocks are arranged above the connecting box, the two wedge-shaped blocks are located in the sunken groove formed in the top of the connecting box, the two wedge-shaped blocks are fixedly connected with the two push rods respectively, a supporting block is arranged on one side of each wedge-shaped block, and the two wedge-shaped blocks are slidably connected with the supporting block in the horizontal direction; the two wedge-shaped blocks are fixedly connected with second springs for resetting the wedge-shaped blocks, and the connecting box is connected with the supporting block in a sliding mode in the vertical direction; the connecting box is fixedly connected with a first spring for resetting;
and a driving assembly is arranged on one side of the demolding group and used for driving the suction disc to adsorb the die casting and conveying the die casting to the outside after adsorption.
As a further scheme of the invention, the driving assembly comprises a Y-shaped rod, the left end of the Y-shaped rod is located between two wedge-shaped blocks, the Y-shaped rod is connected with a cross rod in a sliding manner, a third spring is fixedly connected between the cross rod and the Y-shaped rod, a fixed rod is arranged below the Y-shaped rod and fixedly connected to the right side wall of the supporting block, the bottom of the fixed rod is rotatably connected with a limiting block, the limiting block is fixedly connected with a round rod, the round rod is connected with a connecting plate in a sliding manner, a fourth spring is sleeved outside the round rod, the cross rod is connected to the top of the connecting plate in a sliding manner, the limiting block and the bottom end of the connecting plate are jointly connected with a limiting frame in a sliding manner, the limiting frame is rectangular, a rectangular limiting groove is formed in the inner wall of the limiting frame, the limiting block and the connecting plate are connected in a sliding manner, an elastic telescopic rod is rotatably connected to the bottom of the connecting plate, a motor is arranged below the elastic telescopic rod, the elastic telescopic rod is connected with an output shaft of the motor in a sliding manner, an air cylinder is fixedly connected to the bottom of the limiting frame, and a vertical plate is fixedly connected to the limiting frame;
the driving assembly further comprises a lifting group, and the lifting group is used for controlling the air cylinder to jack up the limiting frame.
As a further aspect of the present invention, the lifting group includes a sensor located on a side of the second spring, the sensor being capable of being pressed by the second spring.
As a further scheme of the invention, gears are arranged on one sides of the wedge-shaped blocks, the gears are rotatably connected with the connecting box, rack rods are arranged above the gears, the rack rods can be meshed with the gears, the gears are fixedly connected with arc-shaped rods, and the arc-shaped rods are fixedly connected with clamping groups.
As a further scheme of the invention, the clamping group comprises a clamping sheet, the bottom end of the clamping sheet is arc-shaped, and the clamping sheet is connected with the arc-shaped rod in a sliding manner; the clamping piece is fixedly connected with a fifth spring for resetting.
As a further scheme of the invention, the bottom end of the wedge-shaped block is arc-shaped.
As a further scheme of the invention, the inner wall of the clamping sheet is glued with a rubber pad.
A rapid die-casting process of an aluminum alloy die-casting piece comprises the following steps of;
the method comprises the following steps: the suction disc is used for sucking four corners of the surface of the die casting, so that the die casting is not locally stressed when being demoulded;
step two: the die casting can be subjected to secondary demolding when the sucking disc cannot work normally through the gear, the rack rod and the clamping group;
step three: the fifth spring can prevent the clamping sheet from rising above the die casting when the cylinder jacks up the limiting frame, so that the phenomenon that the die casting cannot be driven to demould in the secondary demoulding process of the die casting is prevented;
step four: unloading is carried out after the die casting is demoulded through the driving assembly, and repeated lifting and unloading can be carried out through the driving assembly.
Compared with the prior art, the invention has the beneficial effects that:
the suction disc is used for sucking and fixing the four corners of the die casting, the die casting is sucked out of the lower module through the suction force of the suction disc, the phenomenon that the die casting is bent towards the periphery due to the middle stress of the die casting in the traditional demolding process is avoided, large friction cannot be generated between a through hole of the die casting and a cylindrical body of a mold, the demolding phenomenon of the die casting is avoided being blocked by the cylindrical body, the demolding efficiency of the die casting and the quality of the mold after demolding of the mold are improved, the subsequent normal use work of the die casting cannot be influenced, secondary demolding can be performed on the die casting when the suction disc cannot normally work through the gear, the rack rod and the clamping group, the situation that the die casting cannot be demolded when the die casting is started is prevented, the fifth spring can prevent the cylinder from jacking up the limiting frame, the clamping piece rises to the upper side of the die casting, and the phenomenon that the die casting cannot be demolded in the process of secondary demolding is prevented.
Detailed Description
Referring to fig. 1-11, the present invention provides a technical solution: a quick die-casting device for aluminum alloy die castings comprises a bottom plate 1, wherein a lower die set 2 is fixedly connected to the top of the bottom plate 1, an upper die set 3 is arranged above the lower die set 2, a hydraulic rod 4 is fixedly connected to the top of the upper die set 3, the hydraulic rod 4 is fixedly connected with the bottom plate 1 through an L-shaped rod 5, and two demoulding sets are arranged above the lower die set 2;
the demoulding group comprises a connecting box 6, a sunken groove is formed in the top of the connecting box 6, two suckers 7 are fixedly connected to the lower end of the connecting box 6, two sealing pieces 8 are slidably connected to the inside of the connecting box 6, push rods 9 are fixedly connected to the two sealing pieces 8, the two push rods 9 are slidably connected to the connecting box 6, two wedge blocks 10 are arranged above the connecting box 6, the two wedge blocks 10 are located in the sunken groove formed in the top of the connecting box 6, the two wedge blocks 10 are respectively fixedly connected with the two push rods 9, a supporting block 11 is arranged on one side of each wedge block 10, and the two wedge blocks 10 are horizontally and slidably connected with the supporting block 11; the two wedge-shaped blocks 10 are both fixedly connected with a second spring 14 for resetting, and the connecting box 6 is in sliding connection with the supporting block 11 in the vertical direction; the connecting box 6 is fixedly connected with a first spring 12 for resetting the connecting box;
and a driving assembly is arranged on one side of the demoulding assembly and used for driving the sucking disc 7 to suck the die casting and conveying the die casting to the outside after the sucking.
When the scheme is put into practical use, the lower module 2 and the L-shaped rod 5 are supported through the bottom plate 1, the hydraulic rod 4 is started after die casting of die castings is finished, the hydraulic rod 4 drives the upper module 3 to be separated from the lower module 2 when working, a workpiece subjected to die casting is left in the lower module 2 at the moment, then the driving assemblies start working, the two driving assemblies simultaneously push the two connecting boxes 6 to be close to each other when working, the connecting boxes 6 stop moving after the four suckers 7 are respectively positioned at the positions of four corners of the die castings, the driving assemblies drive the four wedge-shaped blocks 10 to slide forwards and backwards along the supporting blocks 11 in the horizontal direction, when the wedge-shaped blocks 10 slide, the bottom ends of the wedge-shaped blocks slide in the sunken grooves and press the connecting boxes 6 downwards in the sliding process, so that the connecting boxes 6 slide downwards along the supporting blocks 11 by a certain height, when the connecting boxes 6 are extruded by the bottom ends of the wedge-shaped blocks 10, the connecting boxes slide downwards along the supporting blocks 11 in the vertical direction, when the connecting boxes 6 slide downwards along the supporting blocks 11, the connecting boxes 7 can be attached to the top surfaces of the die castings, and the push rods 9, the side edges of the wedge-shaped blocks 10 can push the sealing sheets 9, and the sealing sheets 9 can be tightly attached to the inner walls of the connecting boxes 6 when the connecting boxes are pushed by the sliding springs and the sliding springs 14, and the connecting boxes 6, when the sliding discs 8, and the connecting boxes are pushed by the sliding springs;
after the suction disc 7 adsorbs and fixes the surface of the die casting, the driving assembly can drive the supporting block 11 to linearly rise for a certain height, when the supporting block 11 rises, the die casting in the lower module 2 can be lifted out through the suction disc 7 through adsorption force, so that the die casting demoulding operation of the die casting is completed, after the die casting demoulding is completed, the driving assembly can drive the supporting block 11 to move forwards, so that the die casting moves to a region between the upper module 3 and the lower module 2, after the die casting moves to the outside, the driving assembly can unload the die casting, after the die casting unloading is completed, the driving assembly can drive the supporting block 11 to reset to an initial position, and after the next die casting is completed, the driving assembly can drive the demoulding assembly again to demould the die casting;
adsorb fixedly to the four corners position of die casting through sucking disc 7, then adsorb out among die casting follow lower module 2 through sucking disc 7's adsorption affinity, the phenomenon of buckling to around is produced to atress in the middle of the die casting when having avoided traditional drawing of patterns, the through-hole that makes the die casting can not produce great friction with the columnar body of mould, avoid the columnar body to block the drawing of patterns phenomenon of die casting, thereby improve the efficiency of grinding apparatus drawing of patterns and the quality of mould behind the mould drawing of patterns, can not influence the subsequent normal use work of die casting.
As a further scheme of the invention, the driving assembly comprises a Y-shaped rod 13, the left end of the Y-shaped rod 13 is located between two wedge blocks 10, the Y-shaped rod 13 is connected with a cross rod 15 in a sliding manner, a third spring 16 is fixedly connected between the cross rod 15 and the Y-shaped rod 13, a fixed rod 17 is arranged below the Y-shaped rod 13, the fixed rod 17 is fixedly connected to the right side wall of the supporting block 11, the bottom of the fixed rod 17 is connected with a limiting block 18 in a rotating manner, the limiting block 18 is fixedly connected with a round rod 20, the round rod 20 is connected with a connecting plate 19 in a sliding manner, a fourth spring 21 is sleeved outside the round rod 20, the cross rod 15 is connected to the top of the connecting plate 19 in a sliding manner, the limiting block 18 and the bottom end of the connecting plate 19 are jointly connected with a limiting frame 22 in a sliding manner, the limiting frame 22 is rectangular, the inner wall of the limiting frame is provided with a rectangular limiting groove 23, the limiting block 18 and the connecting plate 19 are connected in a sliding manner, the bottom of the connecting plate 19 is connected with an elastic telescopic rod 24 in a rotating manner, a motor 25 is arranged below the elastic rod 24, the elastic telescopic rod 24 is connected with a sliding manner, the elastic telescopic rod 24 and is connected with a vertical plate 34, the bottom of the limiting frame 22 is fixedly connected with a cylinder 26, and a vertical plate 34 is fixedly connected with the limiting frame 22;
the driving assembly further comprises a lifting group, and the lifting group is used for controlling the air cylinder 26 to lift the limiting frame 22.
When the driving assembly works, die casting of a die casting is completed, after the upper die set 3 is separated from the lower die set 2 after the hydraulic rod 4 works, the motor 25 drives the connecting plate 19 to slide to the rear position of the limiting groove 23 through the elastic telescopic rod 24, at the moment, the limiting block 18 is attached to the left side wall of the limiting groove 23, at the moment, the connecting plate 19 slides to the inside of the limiting block 18 along the round rod 20 and extrudes the fourth spring 21, the supporting block 11 is pushed to the upper side of the die casting by the fixing rod 17, the side wall of the cross rod 15 is blocked by the vertical plate 34, so that the cross rod 15 stretches the third spring 16, the Y-shaped rod 13 is pulled after the third spring 16 is stretched, at the moment, the left end of the Y-shaped rod 13 moves rightwards, when the Y-shaped rod 13 moves rightwards, the Y-shaped rod 13 retreats between the two wedge blocks 10 and pushes the two wedge blocks 10 to slide transversely along the supporting block 11 and extrude the second spring 14, the wedge block 10 presses down the connecting box 6 when moving, so that the sucker 7 is attached to the top surface of a die casting, the wedge block 10 moves to push the push rod 9, so that the sucker 7 adsorbs the die casting, the lifting group can control the cylinder 26 to work after the sucker 7 adsorbs the die casting, the cylinder 26 pushes the limiting frame 22 to ascend when working, the elastic telescopic rod 24 ascends along the output shaft of the motor 25 when the limiting frame 22 ascends, as shown in the figure, the output end of the motor 25 is rectangular, which can be understood as that the output end of the motor 25 is fixedly connected with a rectangular rod, the output end of the motor 25 is connected with the elastic telescopic rod 24 in a sliding mode through the rectangular rod, and the sucker 7 lifts the die casting out of the lower die set 2 when the limiting frame 22 ascends, so that demolding is completed;
then the motor 25 continues to rotate, when the motor 25 rotates, the elastic telescopic rod 24 pushes the limit block 18 to slide forwards along the left side wall of the limit groove 23 through the connecting plate 19 and the round rod 20, when the limit block 18 slides, the fixing rod 17 drives the support block 11 to move, when the left side wall of the limit block 18 slides to a position contacting with the front side wall of the limit groove 23, the die-cast part moves to the outer area of the upper die set 3 and the lower die set 2 under the absorption of the suction disc 7, the vertical plate 34 always blocks the cross rod 15 in the process, so that the cross rod 15 always keeps the tension on the third spring 16, then the motor 25 continues to rotate, when the elastic telescopic rod 24 pushes the lower limit block 18 to move to the position of the right side wall along the front of the limit groove 23, in the process, the third spring 16 and the fourth spring 21 gradually reset, the third spring 16 pushes the Y-shaped rod 13 to reset in the resetting process, after the Y-shaped rod 13 resets, the two wedge-shaped blocks 10 reset under the action of the second spring 14, the first spring 12 drives the connecting box 6, and the two push rods 9 reset so that the die-cast part inside of the suction disc 7 or the collecting box can be released;
the motor 25 is continuously rotated, and the die casting can be continuously demoulded in operation.
As a further aspect of the invention, the lifting group comprises a sensor 27, the sensor 27 being located on the side of the second spring 14, the sensor 27 being capable of being pressed by the second spring 14.
When the lifting group works, the Y-shaped rod 13 drives the two wedge blocks 10 to slide and extrude the second spring 14 when retreating, the second spring 14 extrudes the sensor 27 after being extruded, the sensor 27 controls the air cylinder 26 to start working, so that the limiting frame 22 ascends, and the suction disc 7 lifts the die casting from the lower group 2 when the limiting frame 22 ascends.
As a further scheme of the invention, gears 28 are arranged on one sides of the wedge blocks 10, the gears 28 are rotatably connected with the connecting box 6, rack rods 32 are arranged above the gears 28, the rack rods 32 can be meshed with the gears 28, the gears 28 are fixedly connected with arc-shaped rods 29, and the arc-shaped rods 29 are fixedly connected with clamping groups.
When the die casting machine works, air holes are formed in the surface of a die casting piece during die casting, the adsorption effect of the suction disc 7 on the die casting piece can be influenced by the air holes, when the Y-shaped rod 13 retreats to enable the two wedge blocks 10 and the sealing sheet 8 to slide, if the suction disc 7 cannot closely adsorb the die casting piece, the wedge blocks 10 slide for a long distance along the supporting block 11 under the pulling action of the third spring 16 on the Y-shaped rod 13 and continuously extrude the second spring 14, the wedge blocks 10 drive the rack rods 32 to move when sliding, the rack rods 32 are meshed with the gears 28 and drive the gears 28 to rotate when moving, the gears 28 drive the side walls of the die casting piece of the clamping group to approach and clamp the die casting piece through the arc rods when rotating, then the sensor 27 controls the cylinder 26 to work, the cylinder 26 jacks up the limiting frame 22 when working, and then the clamping group lifts the die casting piece out of the lower die casting piece group 2 when clamping the die casting piece;
the die-cast part can be released when the suction cup 7 cannot normally operate by the gear 28, the rack bar 32 and the clamp group, and the die-cast part can not be released when the die-cast part is started.
As a further scheme of the invention, the clamping group comprises a clamping sheet 30, the bottom end of the clamping sheet 30 is arc-shaped, and the clamping sheet 30 is connected with the arc-shaped rod 29 in a sliding manner; the clamping plate 30 is fixedly connected with a fifth spring 31 for restoring the clamping plate.
When the clamping set is in operation, because the bottom end of the clamping piece 30 is arc-shaped, when the two supporting blocks 11 and the two connecting boxes 6 approach each other, the clamping piece 30 moves along the surface of the lower die set 2 and approaches the middle of the lower die set 2, when the clamping piece 30 approaches the middle of the lower die set 2, the clamping piece 30 is obliquely positioned above the lower die set 2, when the suction effect of the suction cup 7 is poor, the rack rod 32 is engaged with the gear 28, the gear 28 drives the clamping piece 30 to approach the die casting through the arc-shaped rod 29 when rotating, the clamping piece 30 stretches the fifth spring 31 when approaching the die casting, and the sensor 27 is firstly under the pressure of the second spring 14, so the air cylinder 26 firstly pushes up the limiting frame 22, the wedge block 10 continuously compresses the second spring 14 during the ascending of the limiting frame 22, so that the rack rod 32 and the gear 28 are firstly driven by the connecting boxes 6, and the elastic action of the fifth spring 31 quickly pulls the clamping piece 30 to descend when the clamping piece 30 ascends, so that the clamping piece 30 quickly clamps the die casting, and then the die casting from the lower die set 2 during the pushing up of the limiting frame 22;
the fifth spring 31 can prevent the clamping sheet 30 from rising above the die casting when the cylinder 26 jacks up the limit frame 22, and prevent the die casting from being demolded due to incapability of driving the die casting in the secondary demolding process of the die casting.
As a further aspect of the present invention, the bottom end of the wedge 10 is arc-shaped.
Above-mentioned scheme is at the during operation, when the bottom of wedge 10 slides among the sink tank of connection box 6 bottom, the bottom of wedge 10 with sink tank side contact and push down connection box 6, because of wedge 10 bottom is the arc, can reduce frictional force when contacting with sink tank side plate edge.
In a further aspect of the present invention, a rubber pad 33 is glued to the inner wall of the clamping piece 30.
In operation, the rubber pad 33 increases friction when the clamping plate 30 is in contact with the die cast part.
A rapid die-casting process of an aluminum alloy die-casting piece comprises the following steps of;
the method comprises the following steps: the suction disc 7 is used for sucking the four corners of the surface of the die casting, so that the die casting is not locally stressed when being demoulded;
step two: secondary demolding can be carried out on the die casting when the sucking disc 7 cannot work normally through the gear 28, the rack bar 32 and the clamping group;
step three: the fifth spring 31 can prevent the clamping sheet 30 from rising above the die casting when the cylinder 26 jacks up the limit frame 22, so that the phenomenon that the die casting cannot be demoulded in the secondary demoulding process of the die casting is prevented;
step four: unloading is carried out after the die casting is demoulded through the driving assembly, and repeated lifting and unloading can be carried out through the driving assembly.
The working principle is as follows: the lower die set 2 and the L-shaped rod 5 are supported through the bottom plate 1, the hydraulic rod 4 is started after die casting of die castings is completed, the hydraulic rod 4 drives the upper die set 3 to be separated from the lower die set 2 when working, a workpiece which is die cast at the moment is left in the lower die set 2, then the driving assembly starts to work, the two driving assemblies simultaneously push the two connecting boxes 6 to be close to each other when working, the connecting boxes 6 stop moving after the four suckers 7 are respectively positioned at the positions of four corners of the die castings, the driving assembly drives the four wedge-shaped blocks 10 to slide forwards and backwards along the supporting blocks 11 at the moment, the bottom ends of the wedge-shaped blocks 10 slide in the sunken grooves when sliding, the connecting boxes 6 are pressed downwards in the sliding process, the connecting boxes 6 slide downwards along the supporting blocks 11 to a certain height, the connecting boxes 6 can slide downwards along the supporting blocks 11 when being extruded by the bottom ends of the wedge-shaped blocks 10, the suckers 7 can be attached to the top surfaces of the die castings when the connecting boxes 6 slide downwards along the supporting blocks 11, the side edges of the wedge-shaped blocks 10 can push the push rods 9, the sealing sheets 8 can be tightly attached to the inner walls of the die castings when the connecting boxes 6 slide, and the connecting boxes can be adsorbed on the inner walls of the second wedge-shaped blocks 10 when the connecting boxes 6 when sliding springs when sliding;
after the suction disc 7 adsorbs and fixes the surface of the die casting, the driving assembly can drive the supporting block 11 to linearly rise for a certain height, when the supporting block 11 rises, the die casting in the lower module 2 can be lifted out through the suction disc 7 through adsorption force, so that the die casting demoulding operation of the die casting is completed, after the die casting demoulding is completed, the driving assembly can drive the supporting block 11 to move forwards, so that the die casting moves to a region between the upper module 3 and the lower module 2, after the die casting moves to the outside, the driving assembly can unload the die casting, after the die casting unloading is completed, the driving assembly can drive the supporting block 11 to reset to an initial position, and after the next die casting is completed, the driving assembly can drive the demoulding assembly again to demould the die casting;
adsorb fixedly through sucking disc 7 to the four corners position of die casting, then adsorb out from among lower module 2 die casting through sucking disc 7's adsorption affinity, atress produces the phenomenon of buckling to all around in the middle of the die casting when having avoided traditional drawing of patterns, make the through-hole of die casting can not produce great friction with the columnar body of mould, avoid the columnar body to block the drawing of patterns phenomenon of die casting, thereby improve the efficiency of grinding apparatus drawing of patterns and the quality of mould behind the mould drawing of patterns, can not influence the subsequent normal use work of die casting.