A die-casting cutting machine and a die-casting cutting process for a button aluminum housing

Abstract

The present invention relates to the technical field of aluminum alloy die-casting, and discloses a die-casting cutting machine and a die-casting cutting process for a button aluminum housing. In the present invention, the liquid injection mechanism can be closed with the die-casting base under the limitation of the positioning mechanism, and drive the locking between the die-casting upper die and the die-casting lower die, so as to ensure that the liquid injection mechanism can accurately inject aluminum liquid into the molding cavity between the die-casting lower die and the die-casting upper die through the locking between the die-casting upper die and the die-casting lower die. After the liquid injection mechanism is separated from the die-casting upper die, the die-casting lower die and the die-casting upper die still remain in the locked state and move through the inside of the cutting mechanism. During the process of passing through the inside of the cutting mechanism, the cutting mechanism can cut and remove the overflowing edge material part from the molding cavity of the die-casting upper die and the die-casting lower die, and can effectively remove the overflowing edge material part from the molding cavity of the die-casting upper die and the die-casting lower die, ensure the appearance quality of the formed aluminum alloy, reduce subsequent processing procedures and improve production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum alloy die casting, and specifically to a die-casting cutting machine and a die-casting cutting process for a button aluminum housing. Background Art

[0002] The demand for lightweight structural components in fields such as automobiles and aerospace is becoming increasingly urgent. Although traditional die-cast aluminum alloys have good casting performance, they are difficult to meet the mechanical property requirements of high-load structural components. High-strength and tough lightweight structural component die-cast aluminum alloys, such as AlSiMgMn series alloys, have excellent tensile strength and are widely used. At present, while the material properties of die-cast aluminum alloys have been broken through, the complexity of aluminum alloy structural components has gradually increased. Traditional die-casting machines are mainly medium and small tonnage (≤4000T), and it is difficult to meet the forming requirements of ultra-large structural components such as new energy vehicle battery packs and integrated vehicle bodies (projection area > 2.5m²).

[0003] A die-casting cutting machine is a key equipment used to remove excess metal such as burrs, gates, and overflow channels during the die-casting process and post-die-casting treatment. In the prior art, the die-casting and cutting processes are separated, which easily leads to problems such as extended production cycles and decreased yield. Especially during the die-casting cutting process of high-strength and tough aluminum alloy die-castings, the solidification shrinkage rate of high-strength and tough aluminum alloys is as high as 0.5% - 0.7%. Residual stresses caused by temperature gradients during the cooling process will shift the cutting positioning reference by 0.2 - 0.3mm, resulting in a loss of positioning accuracy and forcing the addition of a secondary calibration station, which affects production efficiency and leads to a decrease in yield. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a die-casting cutting machine and a die-casting cutting process for a button aluminum housing.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A die-casting cutting machine includes a support pedestal. At both ends of the support pedestal, a die-casting base and a cutting mechanism are respectively arranged. On the top of the support pedestal, a transfer track is also arranged. On the top of the support pedestal and outside the die-casting base, a positioning mechanism is arranged. On the top of the positioning mechanism, a liquid injection mechanism is arranged. Inside the transfer track, a die-casting mold is slidably arranged; The die-casting mold includes a die-casting lower mold and a die-casting upper mold. The die-casting mold can reciprocate between the die-casting base and the cutting mechanism under the restriction of the transfer track; When the die-casting mold stays inside the die-casting base, the liquid injection mechanism can be closed with the die-casting base under the restriction of the positioning mechanism and drive the locking between the die-casting upper mold and the die-casting lower mold; When the die-casting upper mold and the die-casting lower mold pass through the cutting mechanism, the cutting mechanism can cut and remove the excess material part overflowing from the forming cavities of the die-casting upper mold and the die-casting lower mold, and release the locking between the die-casting upper mold and the die-casting lower mold.

[0007] Preferably, a closing groove is arranged at the top of the die-casting lower mold. When the die-casting upper mold and the die-casting lower mold are closed, the bottom end of the die-casting upper mold can extend into the closing groove; On the top of the die-casting lower mold and on both sides of the closing groove, cutting grooves are respectively arranged. The cutting mechanism includes two symmetrically arranged cutting components. The cutting points of the two cutting components are located in the moving path of the cutting grooves moving with the die-casting lower mold.

[0008] Preferably, a cutting compression plate is arranged inside each cutting groove. The cutting compression plate is elastically connected to the bottom end inside the cutting groove through a plurality of cutting compression springs; Both cutting components include a cutting disc and a cutting drive motor. The cutting drive motor is power-connected to the cutting disc. Cutting pressing rods are respectively arranged on both sides of the cutting disc. Pressing inclined surfaces are arranged on the sides of the cutting pressing rods far from the cutting disc.

[0009] Preferably, a pressing stop block is arranged on the side of the top of the cutting compression plate far from the closing groove. On both ends of the pressing stop block and on the side close to the closing groove, material blocking blocks are respectively arranged. The height of the upper surface of the pressing stop block is not lower than the height of the upper surface of the cutting groove; When the cutting groove passes through the corresponding cutting component, the cutting pressing rod can abut against the pressing stop block, pressing the cutting compression plate to disengage from the excess material overflowing above the cutting compression plate against the elastic force of each cutting compression spring, and the cutting disc can cut and remove the overflowing excess material.

[0010] Preferably, a plurality of guiding grooves are respectively formed on both sides of the top end of the die-casting lower die, locking grooves are formed on both sides of the die-casting lower die, and the bottom ends of the guiding grooves on the same side of the die-casting lower die communicate with the locking grooves; a plurality of guiding through holes are formed in the die-casting upper die, a guiding post is arranged inside each guiding through hole, and each guiding post is movably connected with the inner wall of the guiding through hole through a return spring; a locking groove is formed on one side of the guiding post close to the locking groove, a locking spring and a locking pin are arranged inside the locking groove, and the locking pin is movably connected with the inner wall of the locking groove through the locking spring.

[0011] Preferably, a liquid injection hole is formed in the center of the top end of the die-casting upper die, the positioning mechanism comprises a plurality of positioning posts, the liquid injection mechanism comprises a liquid injection fixing plate, each positioning post respectively penetrates through the liquid injection fixing plate, a liquid injection head is arranged in the center of the bottom end of the liquid injection fixing plate, and a plurality of liquid injection pressing columns are arranged at the bottom end of the liquid injection fixing plate.

[0012] Preferably, the liquid injection fixing plate can approach the side close to the die-casting base under the guidance of each positioning post. During the process that the liquid injection head extends into the liquid injection hole, the liquid injection pressing columns can extend into the guiding through holes to drive the guiding posts to overcome the elastic force of the return spring and extend into the corresponding guiding grooves. After the locking groove descends to be flush with the locking groove, the locking spring elongates to drive the locking pin to enter the corresponding locking groove to lock between the die-casting upper die and the die-casting lower die.

[0013] Preferably, the cutting mechanism further comprises two unlocking bumps. When the die-casting lower die passes through the two unlocking bumps, the unlocking bumps can extend into the corresponding locking grooves, the locking grooves can push the locking pins to retract into the locking grooves against the elastic force of the locking springs, and the guiding posts can retract from the guiding grooves into the guiding through holes under the elastic force of the return springs to release the lock between the die-casting upper die and the die-casting lower die.

[0014] Preferably, the transfer track comprises a positioning track and a driving cylinder. The bottom end of the die-casting lower die fits between the positioning track and the driving cylinder. The driving cylinder can drive the die-casting lower die to carry the die-casting upper die to reciprocate between the die-casting base and the cutting mechanism under the limitation of the positioning track.

[0015] A die-casting and cutting process for a button aluminum housing uses the above die-casting and cutting machine and comprises the following steps:

[0016] There is a forming cavity with a forming space for a plurality of button aluminum housings between the die-casting lower die and the die-casting upper die;

[0017] When the lower die-casting die carries the upper die-casting die and moves into the interior of the die-casting base, the liquid injection mechanism can be clamped with the die-casting base under the restriction of the positioning mechanism and drive the locking between the upper die-casting die and the lower die-casting die;

[0018] The liquid injection mechanism injects molten aluminum into the interior of the forming cavity between the lower die-casting die and the upper die-casting die. After the molten aluminum is formed in the forming cavity, the liquid injection mechanism disengages from the upper die-casting die;

[0019] The lower die-casting die carries the upper die-casting die and moves through the interior of the cutting mechanism. The cutting mechanism can cut and remove the excess material part overflowing from the forming cavity of the upper die-casting die and the lower die-casting die, and release the locking between the upper die-casting die and the lower die-casting die;

[0020] Separate the upper die-casting die and the lower die-casting die, remove the formed aluminum button housing from the interior of the forming cavity, and then close the upper die-casting die and the lower die-casting die;

[0021] Under the restriction of the transfer track, the lower die-casting die carries the upper die-casting die and reciprocates between the die-casting base and the cutting mechanism to cyclically carry out the die-casting and cutting process of the aluminum button housing.

[0022] Compared with the prior art, the present invention provides a die-casting cutting machine and a die-casting cutting process for an aluminum button housing, having the following beneficial effects:

[0023] 1. For this die-casting cutting machine, the liquid injection mechanism can be clamped with the die-casting base under the restriction of the positioning mechanism and drive the locking between the upper die-casting die and the lower die-casting die, so as to ensure that the liquid injection mechanism can accurately inject molten aluminum into the forming cavity between the lower die-casting die and the upper die-casting die through the locking between the upper die-casting die and the lower die-casting die. After the liquid injection mechanism disengages from the upper die-casting die, the lower die-casting die and the upper die-casting die still remain in the locked state and move through the interior of the cutting mechanism. During the process of passing through the interior of the cutting mechanism, the cutting mechanism can cut and remove the excess material part overflowing from the forming cavity of the upper die-casting die and the lower die-casting die, so as to effectively remove the excess material part overflowing from the forming cavity of the upper die-casting die and the lower die-casting die, ensure the appearance quality of the formed aluminum alloy, reduce subsequent processing procedures and improve production efficiency.

[0024] 2. For this die-casting cutting machine, during the process of the lower die-casting die carrying the upper die-casting die passing through the cutting mechanism, through the arrangement of the cutting components on both sides, the cutting pressing rod can contact with the material blocking block through the action of the pressing inclined surface, and gradually drive the material blocking block to move downward against the elastic force of each cutting compression spring as the relative sliding between the cutting pressing rod and the material blocking block occurs, so that the overflowing excess material part can be separated from the cutting compression plate, and the cutting compression plate can avoid the cutting path of the cutting disc. The cutting disc can cut and remove the overflowing excess material to ensure the appearance quality of the formed aluminum alloy.

[0025] 3. Before injecting molten aluminum into the forming cavities of the die-casting upper die and the die-casting lower die for die-casting, the liquid injection fixing plate approaches the side close to the die-casting base under the guidance of each positioning post. During the process of the liquid injection head extending into the liquid injection hole, the liquid injection pressing column can extend into the internal guiding through hole, driving the guiding column to overcome the elastic force of the return spring and extend into the corresponding guiding groove. After the locking groove descends to be flush with the locking slot, the elastic potential energy compressed in the locking spring is released and elongated, driving the locking pin into the corresponding locking slot to lock between the die-casting upper die and the die-casting lower die, so as to ensure the stable connection between the die-casting upper die and the die-casting lower die during the die-casting forming process, ensure the stability of injecting molten aluminum into the forming cavities of the die-casting upper die and the die-casting lower die, and also ensure the pressure stability during the die-casting process, improving the forming effect during the die-casting process.

[0026] 4. Driven by the driving cylinder, the die-casting lower die drives the die-casting upper die to reciprocate between the die-casting base and the cutting mechanism under the restriction of the positioning track. Then, during the process that the die-casting lower die drives the die-casting upper die to pass through the cutting mechanism, the unlocking convex block can extend into the corresponding locking slot, the locking slot can push the locking pin to retract into the locking groove against the elastic force of the locking spring, and the guiding column can retract from the guiding groove into the guiding through hole under the elastic force of the return spring, releasing the lock between the die-casting upper die and the die-casting lower die, so that the die-casting upper die and the die-casting lower die can be separated. Description of the Drawings

[0027] Figure 1 One of the three-dimensional structure diagrams of a die-casting cutting machine according to the present invention;

[0028] Figure 2 Another three-dimensional structure diagram of a die-casting cutting machine according to the present invention;

[0029] Figure 3 One of the partial structure diagrams of a die-casting cutting machine according to the present invention;

[0030] Figure 4 Another partial structure diagram of a die-casting cutting machine according to the present invention;

[0031] Figure 5 Three-dimensional structure diagram of the die-casting lower die and the die-casting upper die of a die-casting cutting machine according to the present invention;

[0032] Figure 6 Three-dimensional structure diagram of the die-casting lower die of a die-casting cutting machine according to the present invention;

[0033] Figure 7 Internal structure diagram of the die-casting lower die and the die-casting upper die of a die-casting cutting machine according to the present invention;

[0034] Figure 8 This is a sectional view of the die-casting lower die and the die-casting upper die of a die-casting cutting machine of the present invention;

[0035] Figure 9 This is of the present invention Figure 8 Enlarged view of part A;

[0036] Figure 10 This is of the present invention Figure 8 Enlarged view of part B.

[0037] In the figure: 1, support pedestal; 2, die-casting base; 3, cutting mechanism; 31, cutting assembly; 311, cutting disc; 312, cutting drive motor; 313, cutting pressing rod; 32, unlocking convex block; 4, transfer track; 41, positioning track; 42, driving cylinder; 5, positioning mechanism; 51, positioning column; 6, liquid injection mechanism; 61, liquid injection fixing plate; 62, liquid injection head; 63, liquid injection pressing column; 7, die-casting lower die; 71, closing groove; 72, cutting groove; 721, cutting compression plate; 722, cutting compression spring; 723, pressing stop block; 724, material blocking block; 73, guiding groove; 74, locking groove; 8, die-casting upper die; 81, guiding through hole; 82, guiding column; 83, return spring; 84, locking groove; 85, locking spring; 86, locking pin; 87, liquid injection hole. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a die-casting cutting machine and a die-casting cutting process for a button aluminum housing. Embodiment 1

[0040] Please refer to Figures 1 - 10, A die-casting cutting machine, comprising a support pedestal 1, with a die-casting base 2 and a cutting mechanism 3 respectively arranged at both ends of the support pedestal 1. A transfer track 4 is also arranged at the top of the support pedestal 1. A positioning mechanism 5 is arranged at the top of the support pedestal 1 and outside the die-casting base 2. A liquid injection mechanism 6 is arranged at the top of the positioning mechanism 5. A die-casting mold is slidably arranged inside the transfer track 4; the die-casting mold includes a die-casting lower mold 7 and a die-casting upper mold 8. The die-casting mold can reciprocate between the die-casting base 2 and the cutting mechanism 3 under the restriction of the transfer track 4; when the die-casting mold stays inside the die-casting base 2, the liquid injection mechanism 6 can be closed with the die-casting base 2 under the restriction of the positioning mechanism 5, and drive the locking between the die-casting upper mold 8 and the die-casting lower mold 7; when the die-casting upper mold 8 and the die-casting lower mold 7 pass through the cutting mechanism 3, the cutting mechanism 3 can cut and remove the excess material part overflowing from the forming cavity of the die-casting upper mold 8 and the die-casting lower mold 7, and release the locking between the die-casting upper mold 8 and the die-casting lower mold 7.

[0041] During use, according to the types of actual produced aluminum alloy die-castings (the aluminum alloy die-castings can be high-strength and tough lightweight structural aluminum alloys, or other aluminum alloy structural parts), replace the corresponding die-casting upper mold 8 and die-casting lower mold 7, so as to be able to die-cast and form the corresponding aluminum alloy structural parts in the forming cavities of the die-casting upper mold 8 and the die-casting lower mold 7. During specific use, under the restriction of the transfer track 4, the die-casting lower mold 7 carries the die-casting upper mold 8 and reciprocates between the die-casting base 2 and the cutting mechanism 3. When the die-casting lower mold 7 carries the die-casting upper mold 8 and moves into the die-casting base 2, the liquid injection mechanism 6 can be closed with the die-casting base 2 under the restriction of the positioning mechanism 5, and drive the locking between the die-casting upper mold 8 and the die-casting lower mold 7, so as to ensure that the liquid injection mechanism 6 can accurately inject aluminum liquid into the forming cavity between the die-casting lower mold 7 and the die-casting upper mold 8 through the locking between the die-casting upper mold 8 and the die-casting lower mold 7. After the liquid injection mechanism 6 is separated from the die-casting upper mold 8, the die-casting lower mold 7 and the die-casting upper mold 8 still remain locked and move through the cutting mechanism 3. During the process of passing through the cutting mechanism 3, the cutting mechanism 3 can cut and remove the excess material part overflowing from the forming cavity of the die-casting upper mold 8 and the die-casting lower mold 7, effectively removing the excess material part overflowing from the forming cavity of the die-casting upper mold 8 and the die-casting lower mold 7, ensuring the appearance quality of the formed aluminum alloy, reducing subsequent processing procedures and improving production efficiency, and can release the locking between the die-casting upper mold 8 and the die-casting lower mold 7 during the process of passing through the cutting mechanism 3, so as to be able to separate the die-casting upper mold 8 and the die-casting lower mold 7 at one end close to the cutting mechanism 3, take out the formed aluminum alloy structural parts, and thus reciprocate the above die-casting cutting process, continuously producing aluminum alloy structural parts. Embodiment 2

[0042] Please refer to Figures 1 - 10, different from the above embodiments, a closing groove 71 is provided at the top end of the die-casting lower die 7. When the die-casting upper die 8 and the die-casting lower die 7 are closed, the bottom end of the die-casting upper die 8 can extend into the inside of the closing groove 71; cutting grooves 72 are respectively provided on both sides of the closing groove 71 at the top end of the die-casting lower die 7. The cutting mechanism 3 includes two symmetrically arranged cutting components 31, and the cutting points of the two cutting components 31 are located in the moving path of the cutting groove 72 moving with the die-casting lower die 7.

[0043] A cutting compression plate 721 is provided inside each cutting groove 72. The cutting compression plate 721 is elastically connected to the bottom end inside the cutting groove 72 by a plurality of cutting compression springs 722; both cutting components 31 include a cutting disc 311 and a cutting drive motor 312. The cutting drive motor 312 is power-connected to the cutting disc 311. Cutting pressing rods 313 are respectively provided on both sides of the cutting disc 311, and pressing inclined surfaces are provided on the sides of the cutting pressing rods 313 away from the cutting disc 311.

[0044] A pressing stop block 723 is provided on the side of the top end of the cutting compression plate 721 away from the closing groove 71. Feeding stop blocks 724 are respectively provided at both ends of the pressing stop block 723 and on the side close to the closing groove 71. The height of the upper surface of the pressing stop block 723 is not lower than the height of the upper surface of the cutting groove 72; when the cutting groove 72 passes through the corresponding cutting component 31, the cutting pressing rod 313 can abut against the pressing stop block 723, and the pressing cutting compression plate 721 overcomes the elastic force of each cutting compression spring 722 to separate from the overflowing edge material above the cutting compression plate 721, and the cutting disc 311 can cut off the overflowing edge material.

[0045] During use, when the liquid injection mechanism 6 injects molten aluminum into the molding cavity between the die-casting lower die 7 and the die-casting upper die 8, considering the molding effect, usually an excessive amount of molten aluminum is additionally pressed in. The excessive molten aluminum can overflow from the molding cavity between the die-casting lower die 7 and the die-casting upper die 8 into the closed area formed by the cutting and compressing plate 721, the pressing block 723, and the blanking block 724. And there is a connection between the overflowed side material part and the aluminum alloy structural part inside the molding cavity. Thus, when the die-casting lower die 7 carries the die-casting upper die 8 through the cutting mechanism 3, through the arrangement of the cutting assemblies 31 on both sides, the cutting and pressing rod 313 can contact the blanking block 724 through the action of the pressing slope, and as the relative sliding between the cutting and pressing rod 313 and the blanking block 724, it gradually drives the blanking block 724 to move downward against the elastic force of each cutting and compressing spring 722. Furthermore, it can make the overflowed side material part separate from the cutting and compressing plate 721, and can make the cutting and compressing plate 721 avoid the cutting path of the cutting disc 311. The cutting disc 311 can cut and remove the overflowed side material, ensuring the appearance quality of the formed aluminum alloy. And after cutting and removing the overflowed side material, the cutting and pressing rod 313 separates from the cutting and compressing plate 721 and no longer has a pressing force on the cutting and compressing plate 721. The cutting and compressing plate 721 resets under the elastic force of each cutting and compressing spring 722, and can pick up the overflowed molten aluminum during the next molding process, and can continuously perform the die-casting and cutting process of the aluminum alloy structural part. Embodiment III

[0046] Please refer to Figures 1 - 10 , which is different from the above embodiment in that a plurality of guiding grooves 73 are respectively formed on both sides of the top end of the die-casting lower die 7, and locking grooves 74 are formed on both sides of the die-casting lower die 7. The bottom ends of the guiding grooves 73 on the same side of the die-casting lower die 7 communicate with the locking grooves 74; a plurality of guiding through holes 81 are formed on the die-casting upper die 8, and a guiding column 82 is arranged inside each guiding through hole 81. Each guiding column 82 is movably connected with the inner wall of the guiding through hole 81 through a return spring 83; a locking groove 84 is formed on one side of the guiding column 82 close to the locking groove 74, a locking spring 85 and a locking pin 86 are arranged inside the locking groove 84, and the locking pin 86 is movably connected with the inner wall of the locking groove 84 through the locking spring 85.

[0047] A liquid injection hole 87 is formed in the center of the top end of the die-casting upper die 8. The positioning mechanism 5 includes a plurality of positioning columns 51. The liquid injection mechanism 6 includes a liquid injection fixing plate 61. Each positioning column 51 respectively penetrates through the liquid injection fixing plate 61. A liquid injection head 62 is arranged at the center of the bottom end of the liquid injection fixing plate 61, and a plurality of liquid injection pressing columns 63 are arranged at the bottom end of the liquid injection fixing plate 61.

[0048] The liquid injection fixing plate 61 can approach the side close to the die-casting base 2 under the guidance of each positioning post 51. During the process of the liquid injection head 62 extending into the liquid injection hole 87, the liquid injection pressing post 63 can extend into the inside of the guiding through hole 81, drive the guiding post 82 to overcome the elastic force of the return spring 83 and extend into the corresponding guiding groove 73. After the locking groove 84 descends to be flush with the locking groove 74, the locking spring 85 elongates to drive the locking pin 86 to enter the corresponding locking groove 74, locking the die-casting upper die 8 and the die-casting lower die 7.

[0049] Before die-casting by injecting molten aluminum into the forming cavities of the die-casting upper die 8 and the die-casting lower die 7, the liquid injection fixing plate 61 approaches the side close to the die-casting base 2 under the guidance of each positioning post 51. During the process of the liquid injection head 62 extending into the liquid injection hole 87, the liquid injection pressing post 63 can extend into the inside of the guiding through hole 81, drive the guiding post 82 to overcome the elastic force of the return spring 83 and extend into the corresponding guiding groove 73. After the locking groove 84 descends to be flush with the locking groove 74, the elastic potential energy compressed in the locking spring 85 is released and elongates, driving the locking pin 86 to enter the corresponding locking groove 74, locking the die-casting upper die 8 and the die-casting lower die 7, so as to ensure the stable connection between the die-casting upper die 8 and the die-casting lower die 7 during the die-casting process, ensure the stability of injecting molten aluminum into the forming cavities of the die-casting upper die 8 and the die-casting lower die 7, and at the same time, ensure the pressure stability during the die-casting process, and improve the forming effect during the die-casting process.

[0050] The cutting mechanism 3 further includes two unlocking bumps 32. When the die-casting lower die 7 passes through the two unlocking bumps 32, the unlocking bumps 32 can extend into the corresponding locking grooves 74. The locking grooves 74 can push the locking pins 86 to retract into the locking grooves 84 against the elastic force of the locking springs 85. The guiding posts 82 can retract from the guiding grooves 73 into the guiding through holes 81 under the elastic force of the return springs 83, releasing the lock between the die-casting upper die 8 and the die-casting lower die 7.

[0051] The transfer track 4 includes a positioning track 41 and a driving cylinder 42. The bottom end of the die-casting lower die 7 fits between the positioning track 41 and the driving cylinder 42 respectively. The driving cylinder 42 can drive the die-casting lower die 7 to carry the die-casting upper die 8 to reciprocate between the die-casting base 2 and the cutting mechanism 3 under the restriction of the positioning track 41.

[0052] Driven by the driving cylinder 42, the die-casting lower die 7 drives the die-casting upper die 8 to reciprocate between the die-casting base 2 and the cutting mechanism 3 under the restriction of the positioning track 41. Thus, when the die-casting lower die 7 drives the die-casting upper die 8 past the cutting mechanism 3, the unlocking bump 32 can extend into the corresponding locking groove 74. The locking groove 74 can push the locking pin 86 to contract into the locking groove 84 against the elastic force of the locking spring 85, and the guiding column 82 can contract into the guiding through hole 81 from the guiding groove 73 under the elastic force of the reset spring 83, releasing the locking between the die-casting upper die 8 and the die-casting lower die 7. Thereby, the die-casting upper die 8 and the die-casting lower die 7 can be separated, and the formed aluminum alloy structural parts and the cut-off edge material parts can be taken out by a manipulator or other means, and the next die-casting process can be carried out, so as to continuously improve the efficiency of the die-casting cutting process and the output efficiency of the aluminum alloy structural parts. Embodiment 4

[0053] A die-casting and cutting process for a button aluminum housing uses a die-casting and cutting machine as described in any one of Embodiments 1-3, and includes the following steps:

[0054] There is a forming cavity with a forming space for several button aluminum housings between the die-casting lower die 7 and the die-casting upper die 8;

[0055] When the die-casting lower die 7 drives the die-casting upper die 8 to move into the die-casting base 2, the liquid injection mechanism 6 can be clamped with the die-casting base 2 under the restriction of the positioning mechanism 5 and drive the locking between the die-casting upper die 8 and the die-casting lower die 7;

[0056] The liquid injection mechanism 6 injects aluminum liquid into the forming cavity between the die-casting lower die 7 and the die-casting upper die 8. After the aluminum liquid is formed in the forming cavity, the liquid injection mechanism 6 is separated from the die-casting upper die 8;

[0057] The die-casting lower die 7 drives the die-casting upper die 8 to move through the cutting mechanism 3. The cutting mechanism 3 can cut and remove the edge material part overflowing from the forming cavity of the die-casting upper die 8 and the die-casting lower die 7, and release the locking between the die-casting upper die 8 and the die-casting lower die 7;

[0058] Separate the die-casting upper die 8 and the die-casting lower die 7, remove the formed button aluminum housing from the forming cavity, and then clamp the die-casting upper die 8 and the die-casting lower die 7;

[0059] Under the restriction of the transfer track 4, the die-casting lower die 7 drives the die-casting upper die 8 to reciprocate between the die-casting base 2 and the cutting mechanism 3, and the die-casting and cutting process of the button aluminum housing is carried out cyclically.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting cutting machine, comprising a support pedestal, characterized in that: Both ends of the support pedestal are respectively provided with a die-casting base and a cutting mechanism. A transfer track is further arranged at the top of the support pedestal. A positioning mechanism is arranged at the top of the support pedestal and outside the die-casting base. A liquid injection mechanism is arranged at the top of the positioning mechanism. A die-casting mold is slidably arranged inside the transfer track; The die-casting mold includes a die-casting lower mold and a die-casting upper mold. The die-casting mold can reciprocate between the die-casting base and the cutting mechanism under the restriction of the transfer track; When the die-casting mold stays inside the die-casting base, the liquid injection mechanism can be closed with the die-casting base under the restriction of the positioning mechanism, and drive the locking between the die-casting upper mold and the die-casting lower mold; When the die-casting upper mold and the die-casting lower mold pass through the cutting mechanism, the cutting mechanism can cut and remove the overflowing side material part from the forming cavities of the die-casting upper mold and the die-casting lower mold, and release the locking between the die-casting upper mold and the die-casting lower mold; A closing groove is arranged at the top of the die-casting lower mold. When the die-casting upper mold and the die-casting lower mold are closed, the bottom end of the die-casting upper mold can extend into the closing groove; Cutting grooves are respectively arranged at the top of the die-casting lower mold and on both sides of the closing groove. The cutting mechanism includes two symmetrically arranged cutting components. The cutting points of the two cutting components are located in the moving path of the cutting groove moving with the die-casting lower mold; A cutting compression plate is arranged inside each cutting groove. The cutting compression plate is elastically connected with the bottom end inside the cutting groove through a plurality of cutting compression springs; Both cutting components include a cutting disc and a cutting drive motor. The cutting drive motor is power-connected to the cutting disc. Cutting pressing rods are respectively arranged on both sides of the cutting disc. Pressing inclined surfaces are arranged on the sides of the cutting pressing rods away from the cutting disc; A pressing stop block is arranged at the top of the cutting compression plate on the side away from the closing groove. Material blocking blocks are respectively arranged at both ends of the pressing stop block and on the side close to the closing groove. The upper surface height of the pressing stop block is not lower than the upper surface height of the cutting groove; When the cutting groove passes through the corresponding cutting component, the cutting pressing rod can directly abut against the pressing stop block, pressing the cutting compression plate to overcome the elastic force of each cutting compression spring and separate from the overflowing side material above the cutting compression plate, and the cutting disc can cut and remove the overflowing side material.

2. The die-casting cutting machine according to claim 1, wherein: A plurality of guiding grooves are respectively opened on both sides of the top of the die-casting lower mold. Locking grooves are opened on both sides of the die-casting lower mold. The bottom ends of the guiding grooves on the same side of the die-casting lower mold communicate with the locking grooves; A plurality of guiding through holes are opened on the die-casting upper mold. A guiding column is arranged inside each guiding through hole. Each guiding column is movably connected with the inner wall of the guiding through hole through a return spring; A locking groove is opened on the side of the guiding column close to the locking groove. A locking spring and a locking pin are arranged inside the locking groove. The locking pin is movably connected with the inner wall of the locking groove through the locking spring.

3. A die-casting cutting machine according to claim 2, characterized in that: A liquid injection hole is provided at the center of the top end of the die-casting upper die. The positioning mechanism includes a plurality of positioning columns. The liquid injection mechanism includes a liquid injection fixing plate. Each of the positioning columns penetrates through the liquid injection fixing plate. A liquid injection head is provided at the center of the bottom end of the liquid injection fixing plate, and a plurality of liquid injection pressing columns are provided at the bottom end of the liquid injection fixing plate.

4. The die-casting cutting machine according to claim 3, characterized in that: The liquid injection fixing plate can move closer to the side close to the die-casting base under the guidance of each positioning column. During the process of the liquid injection head extending into the liquid injection hole, the liquid injection pressing columns can extend into the guiding through holes, driving the guiding columns to overcome the elastic force of the return spring and extend into the corresponding guiding grooves. After the locking groove descends to be flush with the locking slot, the locking spring elongates to drive the locking pin into the corresponding locking slot, locking between the die-casting upper die and the die-casting lower die.

5. A die-casting cutting machine according to claim 2, characterized in that: The cutting mechanism further includes two unlocking bumps. When the die-casting lower die passes through the two unlocking bumps, the unlocking bumps can extend into the corresponding locking slots. The locking slots can push the locking pins to retract into the locking slots against the elastic force of the locking spring. The guiding columns can retract from the guiding grooves into the guiding through holes under the elastic force of the return spring, releasing the locking between the die-casting upper die and the die-casting lower die.

6. A die-casting cutting machine according to claim 1, characterized in that: The transfer track includes a positioning track and a driving cylinder. The bottom end of the die-casting lower die fits between the positioning track and the driving cylinder. The driving cylinder can drive the die-casting lower die to carry the die-casting upper die to reciprocate between the die-casting base and the cutting mechanism under the restriction of the positioning track.

7. A die-casting and cutting process for an aluminum button housing, characterized in that, Using a die-casting cutting machine as described in any one of claims 1-6, includes the following steps: There is a forming cavity with a forming space for a number of button aluminum housings between the die-casting lower die and the die-casting upper die; When the die-casting lower die carries the die-casting upper die and moves into the die-casting base, the liquid injection mechanism can be closed with the die-casting base under the restriction of the positioning mechanism and drive the locking between the die-casting upper die and the die-casting lower die; The liquid injection mechanism injects aluminum liquid into the forming cavity between the die-casting lower die and the die-casting upper die. After the aluminum liquid is formed in the forming cavity, the liquid injection mechanism is separated from the die-casting upper die; The die-casting lower die carries the die-casting upper die and moves through the cutting mechanism. The cutting mechanism can cut and remove the excess material part overflowing from the forming cavity of the die-casting upper die and the die-casting lower die, and release the locking between the die-casting upper die and the die-casting lower die; Separate the die-casting upper die and the die-casting lower die, remove the formed button aluminum housing from the forming cavity, and then close the die-casting upper die and the die-casting lower die; Under the restriction of the transfer track, the die-casting lower die carries the die-casting upper die to reciprocate between the die-casting base and the cutting mechanism, and the die-casting and cutting process of the button aluminum housing is carried out in a cycle.

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