Die-casting device for aluminum alloy precision die forging

Abstract

The aluminum alloy precision die forging die-casting device comprises a base, a cylindrical rod, an upper die, a die-casting head and a lower die, the die-casting head is provided with a forming cavity used for die-casting of a circular profile, the lower die is provided with an annular groove used for die-casting of an annular profile, a liftable annular plate is arranged on the inner wall of the annular groove, and reset movement is achieved through a spring. The die-casting mechanism achieves lifting reciprocating motion of an upper die through a fixing plate and a telescopic air cylinder, it is ensured that a die-casting head can accurately conduct die-casting operation on an aluminum alloy plate, the demolding mechanism is arranged on the die-casting head, automatic demolding of a round profile is achieved through a demolding block, a spring and a locking block, the demolding efficiency and quality are improved, and the die-casting efficiency is improved. The blanking mechanism realizes horizontal reciprocating motion of a blanking hopper through an adjusting rod to ensure smooth blanking of a demoulded circular profile, and the pulling mechanism realizes automatic pulling and position adjustment of an aluminum alloy plate, so that synchronous die casting of the circular profile and an annular profile is realized, and the die casting efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting of aluminum alloy precision die forgings, in particular to a die-casting device for aluminum alloy precision die forgings. Background Art

[0002] Aluminum alloy is the most widely used type of non-ferrous metal structural material in industry. It has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries. Before stamping the aluminum alloy sheet into a suitable shape, the lower die needs to be fixed on the workbench and the upper die needs to be fixed on the output end of the press. Stamping is a type of aluminum alloy processing. It relies on stamping equipment to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, thereby obtaining a forming processing method for workpieces of the desired shape and size.

[0003] The existing Chinese patent with publication number CN119319187A includes a base seat, a molding cavity plate is provided at the end of the base seat, a stamping part facing the molding cavity plate is provided at the end of the base seat, and a guiding mechanism for guiding the stamping end of the stamping part is provided at the edge of the molding cavity plate. The base seat includes a base seat, a molding cavity plate is provided at the end of the base seat, a stamping part facing the molding cavity plate is provided at the end of the base seat, and a guiding mechanism for guiding the stamping end of the stamping part is provided at the edge of the molding cavity plate.

[0004] When the above-mentioned device is in use, through the joint action of the forming cavity plate, the stamping part, the ejection mechanism, the lower plate mechanism and the ejection limiting mechanism, it can use the ejection mechanism to quickly eject the stamped aluminum alloy steel plate after the stamping is completed. However, there are certain limitations during use. Only circular profiles can be die-cast. In industrial production, circular profiles and annular profiles are widely used. Therefore, it is difficult for this device to simultaneously meet the die-casting needs of circular profiles and annular profiles.

[0005] For this purpose, we proposed a die-casting device for aluminum alloy precision forgings. Summary of the invention

[0006] The object of the present invention is to provide a die-casting device for aluminum alloy precision forgings, which has the advantages of simultaneously satisfying the die-casting forming of circular profiles and annular profiles, and solves the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a die-casting device for precision aluminum alloy forgings, comprising a base, two symmetrically placed cylindrical rods are fixedly connected at both ends of the base, an upper die for lifting and moving is sleeved on the outer contours of the four cylindrical rods near the ends, a die-casting head for die-casting an aluminum alloy plate is fixedly connected to the bottom of the upper die, and a lower die for supporting the aluminum alloy plate is fixedly connected to the base, an annular groove for the die-casting head to die-cast annular profiles is provided at corresponding positions of the lower die and the die-casting head, and a forming cavity for the die-casting head to die-cast circular profiles is provided on the die-casting head, an annular plate is connected to the inner wall of the annular groove for lifting and moving, and a first spring for guiding the annular plate to reset is fixedly connected to the opposite surface of the annular plate and the annular groove, and a die-casting mechanism for driving the die-casting head to lift and reciprocate is provided on the cylindrical rods.

[0008] Preferably, the die-casting mechanism includes a fixed plate fixedly connected to the end of a cylindrical rod, a telescopic cylinder that pushes the upper mold to move up and down and reciprocate is penetrated and fixedly connected to the fixed plate, and the output shaft at the bottom end of the telescopic cylinder is fixedly connected to the upper mold.

[0009] Preferably, the four cylindrical rods are connected to a circular orifice plate for fixing the aluminum alloy plate on the lower mold for lifting and lowering movement on the outer contour near the bottom end of the upper mold, and the four ends of the circular orifice plate are fixedly connected to the opposite surface of the upper mold with a second spring to guide the circular orifice plate to reset and move.

[0010] Preferably, the die-casting head is provided with a demolding mechanism for separating the circular profile on the inner wall of the molding cavity, the demolding mechanism includes a demolding module connected to the inner wall of the molding cavity for lifting and movement, a third spring is fixedly connected to the opposite surface of the demolding module and the upper mold to guide the demolding module to reset and move, and a circular block is fixedly connected to the end of the demolding module, and a through hole is opened on the upper mold for the circular block to be lifted and moved.

[0011] Preferably, a rectangular groove is provided on one side of the upper mold near the through hole, and a locking block for locking the circular block is rotatably connected to the inner wall of the rectangular groove. A first torsion spring guiding the locking block to reset and rotate is fixedly connected on both sides of the locking block and on the opposite surfaces of the rectangular groove. A stopper for pushing the locking block to unlock the circular block is fixedly connected at the corresponding position of the fixed plate and the locking block.

[0012] Preferably, the base is provided with a feeding mechanism for guiding the feeding of the circular profile after demoulding, the feeding mechanism comprises an L-shaped frame fixedly connected to one side of the base, an inclined plate fixedly connected to the end of the L-shaped frame, and support rods placed parallel to each other are fixedly rotatably connected to the two ends of the inclined plate at symmetrical positions. The bottom ends of the two support rods are fixedly rotatably connected to a feeding hopper for guiding the feeding of the circular profile after demoulding from the inner wall of the molding cavity.

[0013] Preferably, the upper mold is fixedly connected to a fixed seat on one side close to the L-shaped frame, and the end of the fixed seat is rotatably connected to an adjusting rod that pushes the lower hopper to move horizontally back and forth, and the end of the adjusting rod away from the fixed seat is rotatably connected to the support rod on the adjacent side through a pin.

[0014] Preferably, the lower die is provided with a pulling mechanism for pulling the aluminum alloy plate on the lower die to move, the pulling mechanism includes a ramp block fixedly connected to one end of the lower die away from the L-shaped frame, and an L-shaped block fixedly connected to a corresponding position on the upper die close to the L-shaped block, the end of the L-shaped block is rotatably connected to a pulling rod for pulling the aluminum alloy plate on the lower die to move, and second torsion springs are fixedly connected to the opposite surfaces of the two sides of the L-shaped block to the pulling rod to guide the pulling rod to reset and rotate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By pushing the upper die to move up and down and reciprocatingly through the telescopic cylinder, the motion trajectory and pressure of the die-casting head can be accurately controlled, so that the die-casting head can accurately cooperate with the annular groove and the molding cavity in the lower die, thereby realizing the synchronous die-casting of circular profiles and annular profiles, solving the limitation that the traditional device can only die-cast circular profiles, greatly expanding the application range of the die-casting device, and enabling it to adapt to the production needs of more types of aluminum alloy precision die forgings.

[0016] 2. By setting up components such as the demoulding module, the third spring, the circular block, the locking block, the first torsion spring and the stop block, the demoulding process is automated and intelligent. After the die-casting is completed, the demoulding module can quickly push the circular profile in the molding cavity for demoulding under the elastic force of the third spring. At the same time, the cooperation of the locking block and the stop block can ensure the stability and reliability of the demoulding process, effectively avoiding the problem of profile damage or incomplete demoulding caused by demoulding difficulties, and improving the demoulding efficiency and the qualified rate of profiles.

[0017] 3. By setting up an L-shaped frame, an inclined plate, a support rod and a lower hopper, and utilizing the linkage relationship between the adjusting rod and the upper mold, the automatic horizontal reciprocating movement of the lower hopper is realized. When the lower hopper moves to the corresponding position at the bottom of the upper mold, it can accurately receive the circular profile after demolding, and through the guiding effect of the inclined state of the lower hopper, the circular profile is smoothly transported to the designated position, which effectively solves the problem of unsmooth material discharge in the existing device, ensures that the profiles after demolding can be collected and transported in a timely and accurate manner, avoids profile accumulation and production interruption, and improves the continuity and stability of production.

[0018] Fourth, by setting up components such as the inclined block, the L-shaped block, the pulling rod and the second torsion spring, the automatic pulling and position adjustment of the aluminum alloy plate on the lower die is realized. During the die-casting process, the pulling rod can cooperate with the hole groove on the aluminum alloy plate under the elastic force of the second torsion spring, and pull the plate to move horizontally under the guidance of the inclined block, thereby realizing automatic change of the die-casting position, effectively solving the cumbersome operation and inaccurate positioning problems of manual adjustment of the plate position in the existing device, improving the die-casting efficiency and the utilization rate of the plate, while reducing the damage to the plate caused by improper manual operation, ensuring the stability and consistency of the die-casting quality.

[0019] The coordinated use of the above-mentioned structure solves the problem that the existing device has certain limitations during use and can only die-cast circular profiles. In industrial production, circular profiles and annular profiles are widely used, so the device is difficult to simultaneously meet the die-casting needs of circular profiles and annular profiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a cross-sectional schematic diagram of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle; Figure 4 For the present invention Figure 2 Schematic diagram of the structure at B in the middle; Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the upper mold of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the lower hopper of the present invention; Figure 7 This is a schematic diagram of the locked state of the module removal of the present invention; Figure 8 It is a cross-sectional schematic diagram of the lower die iron mechanism of the present invention.

[0021] In the figure: 1. base; 2. cylindrical rod; 3. fixed plate; 4. upper die; 401. through hole; 402. rectangular groove; 5. die-casting head; 501. molding cavity; 6. lower die; 601. annular groove; 7. annular plate; 8. first spring; 9. telescopic cylinder; 10. circular orifice plate; 11. second spring; 12. stripping module; 13. circular block; 14. third spring; 15. locking block; 16. first torsion spring; 17. stopper; 18. L-shaped frame; 19. inclined plate; 20. support rod; 21. lower hopper; 22. fixed seat; 23. adjusting rod; 24. L-shaped block; 25. pulling rod; 26. second torsion spring; 27. inclined block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0023] See also Figures 1 to 8 The present invention provides a technical solution: a die-casting device for aluminum alloy precision forgings, comprising a base 1, two symmetrically placed cylindrical rods 2 are fixedly connected at both ends of the base 1, an upper die 4 for lifting and moving is sleeved on the outer contours near the ends of the four cylindrical rods 2, a die-casting head 5 for die-casting an aluminum alloy plate is fixedly connected at the bottom of the upper die 4, and a lower die 6 for supporting the aluminum alloy plate is fixedly connected to the base 1, an annular groove 601 for the die-casting head 5 to die-cast an annular profile is provided at the corresponding position of the lower die 6 and the die-casting head 5, and a forming cavity 501 for the die-casting head 5 to die-cast a circular profile is provided on the die-casting head 5, an annular plate 7 is connected to the inner wall of the annular groove 601 for lifting and moving, and a first spring 8 for guiding the annular plate 7 to reset is fixedly connected to the opposite surface of the annular plate 7 and the annular groove 601, and a die-casting mechanism for driving the die-casting head 5 to lift and reciprocate is provided on the cylindrical rod 2.

[0024] When in use, the base 1 is provided, and the columnar rod 2 is provided on the base 1, and the columnar rod 2 is fixedly supported at the symmetrical positions at both ends of the base 1, and the upper mold 4 is provided on the columnar rod 2, so that the upper mold 4 can be lifted and moved on the columnar rod 2, and the die-casting head 5 is provided on the upper mold 4, and the die-casting head 5 is fixedly supported on the bottom of the upper mold 4, and the lower mold 6 is provided on the base 1. First, the aluminum alloy sheet to be die-cast is placed on the inner wall of the lower mold 6, so that the lower mold 6 can limit the support of the aluminum alloy sheet, and the lower mold 6 and The annular groove 601 and the molding cavity 501 provided on the die-casting head 5 facilitate the subsequent die-casting of circular profiles and annular profiles through the cooperation of the annular groove 601 and the molding cavity 501. The annular plate 7 provided on the annular groove 601 and the first spring 8 provided on the annular plate 7 enable the first spring 8 to support the position of the annular plate 7 under the action of its own elastic force. The die-casting mechanism provided on the columnar rod 2 can drive the die-casting head 5 to move up and down and reciprocate and perform die-casting operations on the aluminum alloy plate on the lower mold 6. Example

[0025] On the basis of the first embodiment, further: The die-casting mechanism includes a cylindrical rod 2 whose end is fixedly connected to a fixed plate 3, and a telescopic cylinder 9 that pushes the upper mold 4 to move up and down and reciprocate is passed through and fixedly connected to the fixed plate 3, and the output shaft at the bottom end of the telescopic cylinder 9 is fixedly connected to the upper mold 4.

[0026] The four cylindrical rods 2 are connected to a circular orifice plate 10 that is movable and lifts on the outer contour near the bottom of the upper mold 4 to fix the aluminum alloy plate on the lower mold 6. The four ends of the circular orifice plate 10 are fixedly connected to the surface opposite to the upper mold 4 with a second spring 11 that guides the circular orifice plate 10 to reset.

[0027] When in use, the fixing plate 3 arranged on the cylindrical rod 2 is used to fix and support the fixing plate 3 on the end of the cylindrical rod 2. The telescopic cylinder 9 is arranged on the fixing plate 3, and the output shaft of the telescopic cylinder 9 is fixedly connected to the upper mold 4, so that the telescopic cylinder 9 can push the upper mold 4 to move up and down and reciprocate on the cylindrical rod 2 through the output shaft, and the die-casting head 5 can move up and down and reciprocate synchronously with the upper mold 4.

[0028] The circular orifice plate 10 is provided on the cylindrical rod 2, and the circular orifice plate 10 is lifted and reciprocated on the outer contour of the cylindrical rod 2, and the second spring 11 provided on the circular orifice plate 10 enables the second spring 11 to fix the circular orifice plate 10 on the upper die 4. When the upper die 4 drives the die-casting head 5 to move in a downward vertical direction, the circular orifice plate 10 moves and is pressed on the aluminum alloy plate on the surface of the lower die 6. At this time, the upper die 4 moves in a direction close to the circular orifice plate 10, and the second spring 11 is squeezed and contracted under the action of the upper die 4. Then, the circular orifice plate 10 can fix the aluminum alloy die-casting position under the elastic force of the second spring 11, and the die-casting The head 5 is pushed by the upper die 4 to die-cast the aluminum alloy plate on the lower die 6, so that the die-casting head 5 can die-cast the annular profile and move it to the inner wall of the annular groove 601, and the annular plate 7 is moved toward the bottom of the lower die 6 under the push of the die-casting head 5, so that the first spring 8 can be squeezed and contracted under the action of the annular plate 7, and the protrusion of the lower die 6 on the inner wall of the annular groove 601 pushes the circular profile to the inner wall of the molding cavity 501, so that the circular profile can fit tightly on the inner wall of the molding cavity 501. Through the coordinated use of the above-mentioned structure, the annular profile and the circular profile can be die-cast simultaneously, and the aluminum alloy plate is fixed by the circular hole plate 10, which further improves the quality of die-casting.

[0029] When the upper mold 4 drives the die-casting head 5 to reset in the upward vertical direction, the above-mentioned structure resets in the opposite direction synchronously, and the circular orifice plate 10 maintains a pressed state on the aluminum alloy plate on the lower mold 6 under the action of the second spring 11, so that the upper mold 4 drives the die-casting head 5 to move upward and disengage from the inner wall of the annular groove 601, and the annular plate 7 can reset in the upward direction under the elastic force of the first spring 8, and the annular plate 7 can push the annular profile to move out of the inner wall of the annular groove 601, so that personnel can collect the annular profile. Example

[0030] On the basis of the second embodiment, further: The die-casting head 5 is provided with a demoulding mechanism for separating the circular profile on the inner wall of the molding cavity 501, and the demoulding mechanism includes a demoulding module 12 connected to the inner wall of the molding cavity 501 for lifting and movement, and a third spring 14 is fixedly connected to the opposite surface of the demoulding module 12 and the upper mold 4 for guiding the demoulding module 12 to reset and move, and a circular block 13 is fixedly connected to the end of the demoulding module 12, and a through hole 401 is opened on the upper mold 4 for the circular block 13 to be lifted and moved.

[0031] A rectangular groove 402 is provided on one side of the upper mold 4 near the through hole 401, and a locking block 15 for locking the circular block 13 is rotatably connected to the inner wall of the rectangular groove 402. First torsion springs 16 guiding the locking block 15 to reset and rotate are fixedly connected on both sides of the locking block 15 and on the opposite surfaces of the rectangular groove 402. A stopper 17 for pushing the locking block 15 to unlock the circular block 13 is fixedly connected at a position corresponding to the fixing plate 3 and the locking block 15.

[0032] When using, Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, through the stripping module 12 arranged on the molding cavity 501, the stripping module 12 can be connected to the inner wall of the molding cavity 501 by lifting and moving, through the third spring 14 arranged on the stripping module 12, and the third spring 14 can support the position of the stripping module 12, so as to facilitate the subsequent pushing of the stripping module 12 to reset and move on the inner wall of the molding cavity 501, through the circular block 13 arranged on the stripping module 12, and the through hole 401 opened on the upper mold 4, the circular block 13 can be connected to the inner wall of the through hole 401 by lifting and moving, through the rectangular groove 402 opened on the upper mold 4, and the locking block 15 arranged on the rectangular groove 402, the locking block 15 can be connected to the inner wall of the rectangular groove 402 by fixed-axis rotation, and the first torsion spring 16 arranged on the locking block 15, the first torsion spring 16 can support the position of the locking block 15.

[0033] As the protrusion of the lower mold 6 on the inner wall of the annular groove 601 pushes the circular profile to the extreme position of the inner wall of the forming cavity 501, and the stripping module 12 drives the circular block 13 to move to the extreme position in the upward vertical direction under the push of the lower mold 6, at this time, the locking block 15 is in conflict with the bottom of the circular block 13, and the stripping module 12 is in a locked state under the action of the circular block 13 and the locking block 15. As the stripping module 12 moves in the upward vertical direction, the third spring 14 can be squeezed and contracted under the action of the stripping module 12.

[0034] The stopper 17 arranged on the fixed plate 3, when the upper mold 4 drives the die-casting head 5 to reset and move to the limit position in the upward vertical direction, enables the stopper 17 to contact and press the locking block 15, so that the locking block 15 can rotate and disengage from the circular block 13 under the action of the stopper 17, and at the same time, the first torsion spring 16 rotates and contracts under the action of the locking block 15, so that the first torsion spring 16 can subsequently drive the locking block 15 to reset and rotate. At this time, the locking block 15 releases the locking state of the circular block 13, so that the third spring 14 can push the stripping module 12 to quickly reset and move in the downward vertical direction under the action of the elastic force, and then the stripping module 12 can quickly push the circular profile inside the molding cavity 501 to be demolded and discharged, thereby realizing the demolding of the circular profile on the inner wall of the molding cavity 501. Example

[0035] On the basis of the third embodiment, further: The base 1 is provided with a feeding mechanism for guiding the feeding of the circular profile after demoulding, and the feeding mechanism includes an L-shaped frame 18 fixedly connected to one side of the base 1, an inclined plate 19 fixedly connected to the end of the L-shaped frame 18, and support rods 20 placed in parallel are fixedly rotatably connected to the symmetrical positions at both ends of the inclined plate 19. The bottom ends of the two support rods 20 are fixedly rotatably connected to a feeding hopper 21 for guiding the feeding of the circular profile after demoulding the inner wall of the molding cavity 501.

[0036] The upper mold 4 is fixedly connected to a fixed seat 22 on one side close to the L-shaped frame 18, and the end of the fixed seat 22 is rotatably connected to an adjusting rod 23 that pushes the lower hopper 21 to move horizontally back and forth, and the end of the adjusting rod 23 away from the fixed seat 22 is rotatably connected to the support rod 20 on the adjacent side through a pin.

[0037] When in use, through the L-shaped frame 18 set on the base 1 and the inclined plate 19 set on the L-shaped frame 18, the L-shaped frame 18 can fix and support the inclined plate 19 on the base 1, and through the support rods 20 set on the inclined plate 19, the two support rods 20 are placed in parallel and rotatably supported on the inclined plate 19, and through the lower hopper 21 set on the support rods 20, and the support rods 20 are rotatably supported on the lower hopper 21, it is ensured that the lower hopper 21 is placed parallel to the inclined plate 19.

[0038] Through the fixed seat 22 provided on the upper mold 4 and the adjusting rod 23 provided on the fixed seat 22, the two ends of the support rod 20 can be rotatably supported on the fixed seat 22 and the support rod 20 on the adjacent side, and the upper mold 4 is lifted and reciprocated, so that the adjusting rod 23 can drive the lower hopper 21 to move horizontally reciprocatingly through the support rod 20 under the action of the upper mold 4. When the upper mold 4 drives the die-casting head 5 to move downward for die-casting, the adjusting rod 23 can push the lower hopper 21 toward the side away from the upper mold 4 for die-casting. The lower hopper 21 moves horizontally, and at this time, the lower hopper 21 is located on one side of the upper mold 4, which avoids the lower hopper 21 from hindering the die-casting process. When the upper mold 4 drives the die-casting head 5 to move upward and reset, the adjusting rod 23 can pull the lower hopper 21 to move to the bottom of the upper mold 4, and the end of the lower hopper 21 is located at the corresponding position of the bottom of the die-casting head 5, so that the circular profile of the inner wall of the molding cavity 501 after demolding falls onto the lower hopper 21, and the lower hopper 21 is placed obliquely, so that the lower hopper 21 can guide the circular profile to be discharged. Example

[0039] On the basis of the fourth embodiment, further: The lower die 6 is provided with a pulling mechanism for pulling the aluminum alloy plate on the lower die 6 to move, the pulling mechanism includes a ramp block 27 fixedly connected to one end of the lower die 6 away from the L-shaped frame 18, and an L-shaped block 24 is fixedly connected to the upper die 4 at a corresponding position close to the L-shaped block 24, the end of the L-shaped block 24 is rotatably connected to a pulling rod 25 for pulling the aluminum alloy plate on the lower die 6 to move, and second torsion springs 26 are fixedly connected to the opposite surfaces of the two sides of the L-shaped block 24 to guide the pulling rod 25 to reset and rotate.

[0040] When in use, the inclined plane block 27 provided on the lower mold 6 is fixedly supported on one end of the lower mold 6, and the L-shaped block 24 is provided on the upper mold 4, so that the L-shaped block 24 can be fixedly supported on the upper mold 4, and the pulling rod 25 provided on the L-shaped block 24 enables the pulling rod 25 to be rotatably supported on the L-shaped block 24, and the second torsion spring 26 provided on the pulling rod 25, then the second torsion spring 26 can support the inclined state of the pulling rod 25, so that the subsequent second torsion spring 26 can drive the pulling rod 25 to reset and rotate.

[0041] like Figure 1 and Figure 2As shown, the bottom end of the pulling rod 25 can correspond to the position of the hole after die-casting of the aluminum alloy plate on the lower die 6 under the support of the second torsion spring 26, and when the upper die 4 moves in the downward vertical direction, the L-shaped block 24 can drive the pulling rod 25 to move downward synchronously with the upper die 4. At this time, the bottom end of the pulling rod 25 passes through the hole groove on the aluminum alloy plate and contacts and moves on the inclined surface of the inclined block 27, and the pulling rod 25 moves in the direction away from the lower die 6 under the action of the inclined surface on the inclined block 27, so that the pulling rod 25 can contact the inner wall of the hole groove on the aluminum alloy plate and pull the aluminum alloy plate to move horizontally, thereby realizing the automatic change of the die-casting position of the aluminum alloy plate by pulling the material, and further improving the efficiency of die-casting.

[0042] Moreover, the annular plate 7 can reset the die-cast annular profile into the hole groove of the aluminum alloy plate. When the pulling rod 25 pulls the hole groove on the aluminum alloy plate out of contact with the lower mold 6, the annular profile in the hole groove on the aluminum alloy plate falls onto the base 1 under the action of its own gravity, further realizing the unloading operation of the annular profile.

[0043] It is further achieved that the existing device can simultaneously meet the die-casting requirements for circular profiles and annular profiles during actual use, is easy to use, and is better than traditional products.

[0044] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting device for aluminum alloy precision forgings, characterized in that: It includes a base, two symmetrically placed cylindrical rods are fixedly connected at both ends of the base, an upper mold for lifting and moving is sleeved on the outer contours of the four cylindrical rods near the ends, a die-casting head for die-casting aluminum alloy plates is fixedly connected to the bottom of the upper mold, and a lower mold for supporting the aluminum alloy plates is fixedly connected to the base, an annular groove for the die-casting head to die-cast annular profiles is provided at corresponding positions of the lower mold and the die-casting head, and a forming cavity for the die-casting head to die-cast circular profiles is provided on the die-casting head, an annular plate is connected to the inner wall of the annular groove for lifting and moving, and a first spring for guiding the annular plate to reset is fixedly connected to the opposite surface of the annular plate and the annular groove, and a die-casting mechanism for driving the die-casting head to lift and reciprocate is provided on the cylindrical rod.

2. The die-casting device for aluminum alloy precision forgings according to claim 1, characterized in that: The die-casting mechanism includes a fixed plate fixedly connected to the end of a columnar rod, a telescopic cylinder that pushes the upper mold to move up and down and reciprocate is penetrated and fixedly connected to the fixed plate, and an output shaft at the bottom end of the telescopic cylinder is fixedly connected to the upper mold.

3. The die-casting device for aluminum alloy precision forgings according to claim 2, characterized in that: The four cylindrical rods are connected to a circular orifice plate for fixing the aluminum alloy plate on the lower mold on the outer contour near the bottom of the upper mold. The four ends of the circular orifice plate are fixedly connected to the surface opposite to the upper mold with a second spring that guides the circular orifice plate to reset.

4. The die-casting device for aluminum alloy precision forgings according to claim 1, characterized in that: The die-casting head is provided with a demoulding mechanism for separating the circular profile on the inner wall of the molding cavity, the demoulding mechanism includes a demoulding module connected to the inner wall of the molding cavity for lifting and movement, a third spring is fixedly connected to the opposite surface of the demoulding module and the upper mold to guide the demoulding module to reset and move, and a circular block is fixedly connected to the end of the demoulding module, and a through hole is opened on the upper mold for the circular block to be lifted and moved.

5. The die-casting device for aluminum alloy precision forgings according to claim 2, characterized in that: A rectangular groove is provided on one side of the upper mold near the through hole, and a locking block for locking the circular block is rotatably connected to the inner wall of the rectangular groove. A first torsion spring guiding the locking block to reset and rotate is fixedly connected to the opposite surfaces of the two sides of the locking block and the rectangular groove, and a stopper for pushing the locking block to unlock the circular block is fixedly connected at the corresponding position of the fixed plate and the locking block.

6. The die-casting device for aluminum alloy precision forgings according to claim 1, characterized in that: The base is provided with a feeding mechanism for guiding the feeding of the circular profile after demolding, the feeding mechanism comprises an L-shaped frame fixedly connected to one side of the base, an inclined plate fixedly connected to the end of the L-shaped frame, parallel supported rods are rotatably connected to the two ends of the inclined plate at symmetrical positions, and the bottom ends of the two supported rods are rotatably connected to a feeding hopper for guiding the feeding of the circular profile after demolding from the inner wall of the molding cavity.

7. The aluminum alloy precision forging die casting device according to claim 5, characterized in that: The upper mold is fixedly connected to a fixed seat on one side close to the L-shaped frame, and the end of the fixed seat is rotatably connected to an adjusting rod that pushes the lower hopper to move horizontally back and forth, and the end of the adjusting rod away from the fixed seat is rotatably connected to the support rod on the adjacent side through a pin shaft.

8. The aluminum alloy precision forging die casting device according to claim 1, characterized in that: The lower die is provided with a pulling mechanism for pulling the aluminum alloy plate on the lower die to move, the pulling mechanism includes a ramp block fixedly connected to one end of the lower die away from the L-shaped frame, and an L-shaped block fixedly connected to a corresponding position on the upper die close to the L-shaped block, the end of the L-shaped block is rotatably connected to a pulling rod for pulling the aluminum alloy plate on the lower die to move, and second torsion springs are fixedly connected to the surfaces of the two sides of the L-shaped block opposite to the pulling rod to guide the pulling rod to reset and rotate.

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