Aluminum alloy die-casting equipment for casting automobile parts and die-casting process of aluminum alloy die-casting equipment

Abstract

The invention belongs to the technical field of die-casting equipment, and particularly relates to aluminum alloy die-casting equipment for automobile part casting and a die-casting process thereof.The aluminum alloy die-casting equipment comprises a base, the upper end of the base is fixedly connected with a lower die through a plurality of supporting columns, and the rear side of the upper end of the base is fixedly connected with an L-shaped vertical plate; a hydraulic push rod is fixedly inserted into the horizontal portion of the L-shaped vertical plate in a sleeved mode, and the lower movable end of the hydraulic push rod is fixedly connected with an upper die opposite to the lower die. Demolding liquid can be automatically sprayed after die-casting forming, the thickness is adjusted and controlled based on the weight of accessories, and the better demolding effect is achieved; rapid and stable discharging is assisted, the next demolding liquid spraying amount is automatically adjusted and controlled by comparing discharging resistance with the accessory weight, if the resistance is large, the thickness is increased, and if the resistance still cannot be reduced, warning is conducted in time; the weight of the accessory is rapidly detected and compared with the standard tolerance, qualified and unqualified products are automatically classified, warning is given out when the products are unqualified for three times continuously, and the production quality and efficiency are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of die-casting equipment, and in particular relates to aluminum alloy die-casting equipment for casting automobile parts and a die-casting process thereof. Background Art

[0002] Non-ferrous metals such as aluminum alloys improve performance and safety in automobile production through their lightweight, high strength, corrosion resistance, and recyclability, promote the development of new energy and intelligent technologies, and promote industrial sustainability and economic upgrading. They are a key support for automotive technological innovation and global industrial transformation.

[0003] Aluminum alloy die-casting equipment is core equipment for lightweight and precision production of automotive parts. By installing the die-casting mold in the die-casting machine, pressurizing the aluminum alloy solution into the mold, and cooling and shaping it, high-precision metal die-casting parts are obtained. Spraying the mold release fluid onto the lower mold after forming is a key process. This creates an isolating lubricating film on the mold surface, effectively preventing the high-temperature aluminum alloy from adhering to the mold. It also aids in heat dissipation from the mold through water evaporation, reducing friction and wear. This, in turn, minimizes mold release damage and surface defects, and avoids thermal cracking in the mold. This is crucial for extending mold life and ensuring a stable automated production cycle.

[0004] However, current technology has significant shortcomings: on the one hand, the thickness of the demoulding liquid spray is fixed, which cannot adapt to the differentiated needs of accessories of different weights. For accessories that are heavy and release a lot of heat during solidification, the demoulding liquid film with a fixed thickness is difficult to provide sufficient cooling efficiency; on the other hand, in the push-to-demold process after the die-casting of automotive parts, there is a lack of a systematic abnormal warning and response mechanism. When the actual demoulding force exceeds a reasonable range, it mostly relies on the operator's subjective judgment to identify the abnormality, which not only fails to locate the root cause of the problem in time, but also easily leads to the generation of a large amount of waste, significantly increasing production costs and seriously restricting the improvement of production efficiency and product quality. Summary of the Invention

[0005] The purpose of the present invention is to provide an aluminum alloy die-casting equipment and die-casting process for casting automobile parts in order to solve the above problems.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: an aluminum alloy die-casting device for casting automobile parts, comprising a base, the upper end of which is fixedly connected to a lower die via a plurality of support columns, an L-shaped vertical plate fixedly connected to the rear side of the upper end of the base, a hydraulic push rod fixedly inserted into the horizontal portion of the L-shaped vertical plate, and the lower movable end of the hydraulic push rod fixedly connected to an upper die arranged opposite to the lower die, and further comprising:

[0007] An ejection mechanism is fixedly installed between the base and the lower mold;

[0008] A material taking and transferring mechanism is fixedly mounted on the upper end of the base and is arranged on one side of the lower die;

[0009] A demoulding liquid spraying mechanism is fixedly mounted on the moving end of the material taking and transferring mechanism;

[0010] A spraying amount compensation mechanism is fixedly mounted on the upper end of the base and is used to control the action of the demoulding liquid spraying mechanism;

[0011] An accessories batch conveying mechanism is fixedly mounted on the upper end of the base;

[0012] An accessory weight tolerance detection and conveying mechanism is fixedly mounted on the upper end of the base and is disposed above the accessory batch conveying mechanism;

[0013] The timely feedback mechanism for quality failure is fixedly mounted on the outer wall of the accessory weight tolerance detection guide mechanism.

[0014] In the above-mentioned aluminum alloy die-casting equipment for casting automotive parts, the ejection mechanism includes two rotating screws symmetrically connected to the base and the lower mold, a cavity is provided inside the base, the lower end of the rotating screw extends into the cavity, a dual-axis motor is fixedly installed inside the corresponding cavity of the base, the output ends of the dual-axis motor are connected to the rotating screw through a bevel gear assembly, the rod walls of the two rotating screws are threadedly sleeved with a lifting plate, the surface of the lifting plate is provided with a sliding hole that is slidably sleeved with a support column, the upper end of the lifting plate is fixedly connected to a push plate, and a pressure sensor is also fixedly connected between the lifting plate and the push plate, the upper end of the push plate is fixedly connected to multiple push rods, the upper ends of the multiple push rods pass through and extend into the interior of the lower mold, and are fixedly connected to the same discharge plate.

[0015] In the above-mentioned aluminum alloy die-casting equipment for casting automobile parts, the material picking and transferring mechanism includes a rotating motor fixedly installed on the upper end of the base, the output end of the rotating motor is fixedly connected to the mounting frame, the top of the mounting frame is fixedly plugged with a first electric telescopic rod, the lower movable end of the first electric telescopic rod is fixedly connected to a laterally arranged second electric telescopic rod, and the movable end of the second electric telescopic rod is fixedly connected to an electric clamp.

[0016] In the above-mentioned aluminum alloy die-casting equipment for casting automotive parts, the demolding liquid spraying mechanism includes a spray head fixedly mounted at the lower end of the electric clamp, the side wall of the spray head is fixedly connected to a feed pipe, a feed pump is mounted on the feed pipe, and the feed pump is fixedly mounted on the outer wall of the electric clamp.

[0017] In the above-mentioned aluminum alloy die-casting equipment for casting automobile parts, the spraying amount compensation mechanism includes a compensation shell, the inner wall of the compensation shell is fixedly connected to a plurality of guide slide rods arranged side by side, and the plurality of guide slide rods are externally slidably sleeved with the same sliding plate, the upper end of the sliding plate and the top of the inner wall of the compensation shell are fixedly connected with a plurality of extrusion springs sleeved outside the guide slide rods, an adjustment resistor rod arranged parallel to the guide slide rod is fixedly installed on one side of the inner wall of the compensation shell, an adjustment conductive contact electrically in contact with the adjustment resistor rod is fixedly connected on one side of the sliding plate, an adjustment permanent magnet plate is fixedly installed on the lower end of the sliding plate, and an adjustment electromagnetic plate arranged opposite to the adjustment permanent magnet plate is fixedly installed on the bottom of the inner wall of the compensation shell, and a miniature electric push rod is also fixedly inserted on one side of the sliding plate, and the moving end of the miniature electric push rod is fixedly connected to a limited position support block.

[0018] In the above-mentioned aluminum alloy die-casting equipment for casting automobile parts, the parts batch conveying mechanism includes a qualified product conveyor belt and an unqualified product conveyor belt fixedly installed on the upper end of the base, and the qualified product conveyor belt and the unqualified product conveyor belt are arranged adjacent to each other.

[0019] In the above-mentioned aluminum alloy die-casting equipment for casting automobile parts, the part weight tolerance detection guide mechanism includes two side plates symmetrically fixedly connected to the upper end of the base, and a flip plate is rotatably connected between the two side plates. A flip motor for driving the flip plate to deflect is fixedly installed on the outer wall of one of the side plates, and a weighing sensor is fixedly installed on the flip plate.

[0020] In the above-mentioned aluminum alloy die-casting equipment for casting automotive parts, the timely feedback mechanism for substandard quality includes a feedback shell, a rotating shaft is rotatably connected at the center of the inner wall of the feedback shell, one end of the rotating shaft passes through and extends out of the feedback shell, and is fixedly connected to an anti-slip plate, a torsion spring is fixedly connected between the anti-slip plate and the feedback shell and is sleeved on the outside of the rotating shaft, a servo motor is fixedly installed on the outer wall of the feedback shell, the output end of the servo motor is connected to one end of the rotating shaft through a magnetic connection assembly, a warning switch is fixedly installed on one side of the inner wall of the feedback shell, and the shaft wall of the rotating shaft is fixedly connected to an arc-shaped extrusion block arranged corresponding to the position of the warning switch.

[0021] An aluminum alloy die-casting process for casting automobile parts comprises the following steps:

[0022] S1. The die-casting of automotive parts is completed through the cooperation of the lower die, hydraulic push rod and upper die;

[0023] S2. The ejector mechanism is used to assist in ejecting the formed auto parts, and then the material transfer mechanism is used to automatically classify and transport the auto parts based on the weight tolerance detection guide mechanism, and the auto parts delivery mechanism is used to complete the delivery of the auto parts in batches;

[0024] S3. The release liquid spraying mechanism cooperates with the spraying amount compensation mechanism to accurately spray the release liquid on the lower mold;

[0025] S4. Use the quality non-compliance timely feedback mechanism to promptly report the problem of unqualified production of auto parts.

[0026] Compared with the existing technology, the beneficial effects of the present invention are:

[0027] 1. Through the set material transfer mechanism and demoulding liquid spraying mechanism, the demoulding liquid can be automatically sprayed on the inner wall of the lower mold after each die-casting of an automotive part. The molding thickness of the demoulding liquid can be automatically adjusted based on the standard weight of the automotive part. The heavier the part, the thicker the demoulding liquid, achieving a better demoulding effect.

[0028] 2. Through the ejection mechanism and spraying amount compensation mechanism, the auto parts can be assisted to perform fast and stable discharge after the die-casting is completed. The resistance encountered during the discharge process can be compared with the weight value of the auto parts themselves, and the spraying amount of the next demoulding liquid can be automatically adjusted based on the size of the resistance. The greater the resistance, the greater the molding thickness of the demoulding liquid added, avoiding the demoulding obstruction caused by insufficient use of demoulding liquid. When it is monitored that adding demoulding liquid cannot reduce the demoulding resistance, the warning signal is promptly fed back to the staff for emergency treatment to determine whether there is a problem with other parts of the die-casting equipment, making the response more timely.

[0029] 3. Through the set material picking and transfer mechanism, parts batch conveying mechanism, parts weight tolerance detection and guiding mechanism, and quality non-standard timely feedback mechanism, the weight of the auto parts can be quickly detected after the die-casting is completed, and then the weight tolerance between it and the standard auto parts can be confirmed, and whether the current auto parts production quality meets the standards can be judged. The qualified and unqualified products can be separated and conveyed for automatic classification. In addition, when the quality of auto parts produced three times in a row is unqualified, a warning signal can be automatically issued to remind the staff that there is a problem with the current die-casting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of an aluminum alloy die-casting device for casting automobile parts provided by the present invention;

[0031] Figure 2 This is a front view structural schematic diagram of an aluminum alloy die-casting device for casting automobile parts provided by the present invention;

[0032] Figure 3 This is a structural schematic diagram of an ejector mechanism of an aluminum alloy die-casting device for casting automobile parts provided by the present invention;

[0033] Figure 4 This is a structural schematic diagram of a material taking and transferring mechanism of an aluminum alloy die-casting device for casting automobile parts provided by the present invention;

[0034] Figure 5 This is a schematic cross-sectional view of a spraying amount compensation mechanism of an aluminum alloy die-casting device for casting automobile parts provided by the present invention;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of a guide mechanism for detecting weight tolerance of an aluminum alloy die-casting device for casting automobile parts provided by the present invention;

[0036] Figure 7 The present invention provides a schematic cross-sectional structural diagram of a timely feedback mechanism for quality non-compliance of aluminum alloy die-casting equipment for casting automobile parts.

[0037] In the figure: 1 base, 2 ejection mechanism, 21 rotating screw, 22 dual-axis motor, 23 bevel gear assembly, 24 lifting plate, 25 ejection plate, 26 pressure sensor, 27 ejection rod, 28 discharge plate, 3 material transfer mechanism, 31 rotating motor, 32 mounting frame, 33 first electric telescopic rod, 34 second electric telescopic rod, 35 electric clamp, 4 demoulding liquid spraying mechanism, 41 spray head, 42 feeding pipe, 43 feeding pump, 5 spraying amount compensation mechanism, 51 compensation shell, 52 guide slide rod, 53 sliding plate, 54 extrusion spring, 55 adjustment resistance rod, 56 adjustment conductive contact piece, 57 adjustment 1. Permanent magnet plate, 58. Adjusting electromagnetic plate, 59. Micro electric push rod, 510. Limiting support block, 6. Accessories batch conveying mechanism, 61. Conveyor belt for qualified products, 62. Conveyor belt for unqualified products, 7. Accessories weight tolerance detection and guiding mechanism, 71. Side plate, 72. Flip plate, 73. Flip motor, 74. Weighing sensor, 8. Timely feedback mechanism for substandard quality, 81. Feedback round shell, 82. Rotating shaft, 83. Anti-slip plate, 84. Torsion spring, 85. Servo motor, 86. Magnetic connection assembly, 87. Warning switch, 88. Arc-shaped extrusion block, 9. Support column, 10. Lower die, 11. L-shaped vertical plate, 12. Hydraulic push rod, 13. Upper die. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] like Figure 1-Figure 7As shown, an aluminum alloy die-casting device for casting automobile parts includes a base 1, the upper end of the base 1 is fixedly connected to a lower die 10 through multiple support columns 9, the rear side of the upper end of the base 1 is fixedly connected to an L-shaped vertical plate 11, the horizontal portion of the L-shaped vertical plate 11 is fixedly inserted with a hydraulic push rod 12, and the lower movable end of the hydraulic push rod 12 is fixedly connected to an upper die 13 arranged opposite to the lower die 10, and further includes:

[0040] The ejection mechanism 2 is fixedly installed between the base 1 and the lower mold 10. The ejection mechanism 2 includes two rotating screws 21 symmetrically connected to the base 1 and the lower mold 10. A cavity is provided inside the base 1, and the lower end of the rotating screw 21 extends into the cavity. A dual-axis motor 22 is fixedly installed inside the corresponding cavity of the base 1. The output ends of the dual-axis motor 22 are connected to the rotating screw 21 through a bevel gear assembly 23. The rod walls of the two rotating screws 21 are threadedly sleeved with a lifting plate 24. The surface of the lifting plate 24 is provided with a sliding hole that is slidably sleeved with the support column 9. The upper end of the lifting plate 24 is fixedly connected to a push plate 25. A pressure sensor 26 is also fixedly connected between the lifting plate 24 and the push plate 25. The upper end of the push plate 25 is fixedly connected to multiple push rods 27. The upper ends of the multiple push rods 27 pass through and extend into the interior of the lower mold 10, and are fixedly connected to the same discharge plate 28.

[0041] The material picking and transferring mechanism 3 is fixedly mounted on the upper end of the base 1 and is arranged on one side of the lower mold 10. The material picking and transferring mechanism 3 includes a rotating motor 31 fixedly mounted on the upper end of the base 1. The output end of the rotating motor 31 is fixedly connected to the mounting frame 32. The top of the mounting frame 32 is fixedly plugged with a first electric telescopic rod 33. The lower movable end of the first electric telescopic rod 33 is fixedly connected to a horizontally arranged second electric telescopic rod 34. The movable end of the second electric telescopic rod 34 is fixedly connected to an electric clamp 35.

[0042] The demoulding liquid spraying mechanism 4 is fixedly mounted on the movable end of the material taking and transferring mechanism 3. The demoulding liquid spraying mechanism 4 includes a spray head 41 fixedly mounted on the lower end of the electric clamp 35. The side wall of the spray head 41 is fixedly connected to a feed pipe 42. A feed pump 43 is mounted on the feed pipe 42. The feed pump 43 is fixedly mounted on the outer wall of the electric clamp 35.

[0043] The spraying amount compensation mechanism 5 is fixedly mounted on the upper end of the base 1 and is used to control the action of the demoulding liquid spraying mechanism 4. The spraying amount compensation mechanism 5 includes a compensation shell 51. The inner wall of the compensation shell 51 is fixedly connected to a plurality of guide slide rods 52 arranged side by side. The plurality of guide slide rods 52 are slidably sleeved on the outside with the same sliding plate 53. The upper end of the sliding plate 53 and the top of the inner wall of the compensation shell 51 are fixedly connected with a plurality of extrusion springs 54 sleeved on the outside of the guide slide rods 52. An adjustment resistor rod 55 arranged parallel to the guide slide rod 52 is fixedly mounted on one side of the inner wall of the compensation shell 51. An adjustment conductive contact 56 electrically contacting the adjustment resistor rod 55 is fixedly connected to one side of the sliding plate 53. An adjustment permanent magnet plate 57 is fixedly mounted on the lower end of the sliding plate 53. An adjustment electromagnetic plate 58 arranged opposite to the adjustment permanent magnet plate 57 is fixedly mounted on the bottom of the inner wall of the compensation shell 51. A micro electric push rod 59 is also fixedly sleeved on one side of the sliding plate 53. The moving end of the micro electric push rod 59 is fixedly connected to a limited position support block 510.

[0044] The accessories batch conveying mechanism 6 is fixedly installed on the upper end of the base 1. The accessories batch conveying mechanism 6 includes a qualified product conveyor belt 61 and an unqualified product conveyor belt 62 fixedly installed on the upper end of the base 1. The qualified product conveyor belt 61 and the unqualified product conveyor belt 62 are adjacent to each other.

[0045] The accessory weight tolerance detection and guiding mechanism 7 is fixedly mounted on the upper end of the base 1 and is arranged on the upper side of the accessory batch conveying mechanism 6. The accessory weight tolerance detection and guiding mechanism 7 includes two side plates 71 symmetrically fixedly connected to the upper end of the base 1. A flip plate 72 is rotatably connected between the two side plates 71. A flip motor 73 for driving the deflection of the flip plate 72 is fixedly mounted on the outer wall of one of the side plates 71, and a weighing sensor 74 is fixedly mounted on the flip plate 72.

[0046] The timely feedback mechanism 8 for quality failure is fixedly installed on the outer wall of the accessory weight tolerance detection and guiding mechanism 7. The timely feedback mechanism 8 for quality failure includes a feedback shell 81. The center of the inner wall of the feedback shell 81 is rotatably connected to a rotating shaft 82. One end of the rotating shaft 82 extends through the feedback shell 81 and is fixedly connected to an anti-slip plate 83. A torsion spring 84 is fixedly connected between the anti-slip plate 83 and the feedback shell 81 and is sleeved on the outside of the rotating shaft 82. A servo motor 85 is fixedly installed on the outer wall of the feedback shell 81. The output end of the servo motor 85 is connected to one end of the rotating shaft 82 through a magnetic connection component 86. A warning switch 87 is fixedly installed on one side of the inner wall of the feedback shell 81. The shaft wall of the rotating shaft 82 is fixedly connected to an arc-shaped extrusion block 88 arranged corresponding to the position of the warning switch 87.

[0047] The operating principle of the present invention is described as follows: the PLC controller inputs the parameters of the automobile parts to be produced, and the PLC controller determines the thickness of the release liquid to be sprayed based on the weight parameters of the automobile parts. The PLC controller controls the rotary motor 31 to drive the mounting frame 32 to rotate 180 degrees, so that the electric clamp 35 moves with the release liquid spraying mechanism 4 to the upper side of the lower mold 10, and the feed pump 43 cooperates with the feed pipe 42 to transport the release liquid to the spray head 41 for spraying, and then the release liquid is sprayed quickly in the lower mold 10. The larger the standard weight of the automobile parts, the more the PLC controller controls the power supply equipment to supply the feed pump 4. 3. A larger current is supplied, and the feed pump 43 is a DC pump. Therefore, the feeding speed of the demoulding liquid is faster, and the second electric telescopic rod 34 drives the electric clamping claw 35 and the spray head 41 to move within the range of the lower mold 10, so that the demoulding liquid is evenly sprayed in the lower mold 10. Moreover, due to the increased power of the feed pump 43, the second electric telescopic rod 34 maintains a fixed moving speed, so that the molding thickness of the demoulding liquid in the lower mold 10 is greater. Because one of the core functions of the demoulding liquid is to absorb the heat of the mold, the heavier the component, the more heat it releases during solidification, and a thicker demoulding liquid film is required to enhance the cooling efficiency.

[0048] After the release liquid spraying is completed, the PLC controller controls the material transfer mechanism 3 to rotate the release liquid spraying mechanism 4 to one side, and the hydraulic push rod 12 pushes the upper mold 13 toward the lower mold 10 to complete the mold closing, and then injects the aluminum alloy solution into the mold through the high-pressure injection assembly to perform the die casting. After the die casting is completed, the PLC controller controls the hydraulic push rod 12 to drive the upper mold 13 to separate from the lower mold 10, and the PLC controller first controls the material transfer mechanism 3 to rotate the electric clamp 35 to the upper side of the lower mold 10, and then the PLC controller controls the ejector The action of mechanism 2 realizes the auxiliary discharge of the formed automobile parts. The dual-axis motor 22 drives the two rotating screws 21 to rotate synchronously through the bevel gear assembly 23. Then, through the threaded connection between the rotating screw 21 and the lifting plate 24, the lifting plate 24 pushes the push plate 25, the push rod 27 and the discharge plate 28 to move upward synchronously, pushing the formed automobile parts out of the upper end of the lower mold 10. The PLC controller then controls the electric clamp 35 to fix the automobile parts, and moves the formed automobile parts to the parts weight tolerance detection guide machine through the material picking and transferring mechanism 3. The upper side of the structure 7 is opened, and the auto parts are released so that the auto parts fall onto the weighing sensor 74. After the data feedback from the weighing sensor 74 stabilizes, the weight of the currently formed auto parts is obtained, and the calculation and analysis module inside the PLC controller is used to calculate the tolerance between the current auto parts weight and the standard auto parts weight. When the weight tolerance exceeds ±0.5%, it means that the currently produced auto parts are unqualified. Because the auto parts are too heavy or too light, it will be fed back that there is a problem with the injection volume of the aluminum alloy solution of the die-casting equipment, the parameters of the die-casting process, or the direction of mold wear and deformation. The PLC controller controls the flip motor 73 to drive the flip plate 72 to rotate and tilt, so that the flip plate 72 tilts toward the side of the unqualified product conveyor belt 62. Under the action of the gravity of the auto parts, the auto parts automatically slide onto the unqualified product conveyor belt 62. On the contrary, when it is detected that the weight tolerance of the produced auto parts is within the allowable range, the flip plate 72 is controlled to tilt toward the qualified product conveyor belt 61, so that the auto parts are conveyed out through the qualified product conveyor belt 61, thereby realizing automatic classification of products.

[0049] After each production and delivery of an automobile part is completed, the PLC controller controls the output end of the servo motor 85 to rotate at a fixed angle, and the PLC controller controls the power supply device to keep supplying power to the magnetic connection component 86, so that the output end of the servo motor 85 is connected to one end of the rotating shaft 82, thereby driving the rotating shaft 82 to rotate synchronously, and the rotating shaft 82 overcomes the action of the torsion spring 84 to rotate, thereby driving the arc-shaped extrusion block 88 to move a fixed distance in the feedback circular shell 81. When the inspected automobile part is qualified, the PLC controller controls the power supply device to stop supplying power to the magnetic connection component 86 during the period when the servo motor 85 is working, so that the servo motor 85 does not drive the rotating shaft 82 to rotate synchronously, and under the action of the torsion spring 84, the arc-shaped extrusion block 88 is Reset to the initial position. When the auto parts are detected as unqualified three times in a row, the arc-shaped extrusion block 88 will press the warning switch 87 under the continuous drive of the servo motor 85. The warning switch 87 will send a warning signal to the staff in time through the PLC controller to make emergency treatment, reminding the staff that there is a processing quality problem with the current die-casting equipment. The staff will isolate the current batch of products and mark it as "pending re-inspection". The die-casting parameter records (such as injection pressure, holding time, mold temperature) when the unqualified parts were produced will be retrieved, the mold will be disassembled to check the wear of the cavity (such as using three-coordinate measurement to measure the flatness of the parting surface), and corresponding maintenance will be carried out. After adjustment, 5 pieces will be trial-produced. Mass production can be resumed only if all are qualified. The historical unqualified products will be fully inspected, and the weight-exceeding parts will be screened out for scrapping or rework.

[0050] In the process of using the ejection mechanism 2 to assist the automobile parts in ejecting from the mold, the pressure sensor 26 monitors the resistance encountered by the automobile parts when ejecting from the mold in real time, and feeds back the maximum resistance signal value monitored by the pressure sensor 26 to the PLC controller. The PLC controller calculates the difference between this resistance signal value and the standard weight value of the automobile parts, and then controls the power supply device to supply power to the adjusting electromagnetic plate 58 based on this difference. Specifically, the larger the difference, the greater the current the PLC controller controls the power supply device to supply to the adjusting electromagnetic plate 58, so that the adjusting electromagnetic plate 58 is energized to generate the same and greater magnetic force as the adjusting permanent magnet plate 57, and then applies a greater magnetic thrust to the sliding plate 53, so that the sliding plate 53 moves up a greater distance along the guide slide bar 52 to overcome the elastic force of the extrusion spring 54, driving the adjusting conductive contact 56 to slide further on the adjusting resistance rod 55. The larger the distance, the smaller the access resistance of the adjustment resistor rod 55. At this time, the PLC controller controls the micro electric push rod 59 to push the limit support block 510 to move and contact the inner wall of the compensation shell 51, fix the position of the sliding plate 53, and adjust the conductive contact 56 and the adjustment resistor rod 55 in series on the power supply circuit of the feed pump 43, thereby increasing the molding thickness of the demolding liquid in the subsequent demolding liquid spraying, avoiding the problem of excessive demolding resistance due to insufficient thickness of the demolding liquid, and when the demolding resistance is still too large during the subsequent ejection process, timely feedback warning signals are given to the staff to remind the staff to detect the problem of increased demolding resistance caused by other related factors, such as abnormal mold temperature control, mold surface wear or damage, and unreasonable die-casting process parameters, etc., and automatically eliminate the factors of insufficient demolding liquid thickness, reducing labor consumption and losses caused by downtime.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An aluminum alloy die-casting device for casting automobile parts, comprising a base (1), wherein the upper end of the base (1) is fixedly connected to a lower die (10) via a plurality of support columns (9), an L-shaped vertical plate (11) is fixedly connected to the rear side of the upper end of the base (1), a hydraulic push rod (12) is fixedly inserted into the horizontal portion of the L-shaped vertical plate (11), and the lower movable end of the hydraulic push rod (12) is fixedly connected to an upper die (13) arranged opposite to the lower die (10), characterized in that: Also includes: An ejection mechanism (2) is fixedly installed between the base (1) and the lower mold (10); A material taking and transferring mechanism (3) is fixedly mounted on the upper end of the base (1) and is arranged on one side of the lower mold (10); A demoulding liquid spraying mechanism (4) is fixedly mounted on the moving end of the material taking and transferring mechanism (3); A spraying amount compensation mechanism (5) is fixedly mounted on the upper end of the base (1) and is used to control the action of the demoulding liquid spraying mechanism (4); An accessories batch conveying mechanism (6) is fixedly mounted on the upper end of the base (1); An accessory weight tolerance detection and guiding mechanism (7) is fixedly mounted on the upper end of the base (1) and is arranged on the upper side of the accessory batch conveying mechanism (6); The timely feedback mechanism (8) for quality failure is fixedly mounted on the outer wall of the accessory weight tolerance detection and guiding mechanism (7).

2. The aluminum alloy die-casting equipment for casting automobile parts according to claim 1, characterized in that: The ejection mechanism (2) comprises two rotating screws (21) symmetrically connected to the base (1) and the lower die (10); a cavity is provided inside the base (1); the lower ends of the rotating screws (21) extend into the cavity; a dual-axis motor (22) is fixedly installed inside the corresponding cavity of the base (1); the output ends of the dual-axis motor (22) are connected to the rotating screws (21) through a bevel gear assembly (23); the rod walls of the two rotating screws (21) are threadedly sleeved with A lifting plate (24) is provided on the surface of the lifting plate (24) with a sliding hole for slidingly sleeved with the support column (9), the upper end of the lifting plate (24) is fixedly connected to a push plate (25), a pressure sensor (26) is also fixedly connected between the lifting plate (24) and the push plate (25), the upper end of the push plate (25) is fixedly connected to a plurality of push rods (27), the upper ends of the plurality of push rods (27) extend through the interior of the lower mold (10), and are fixedly connected to the same discharge plate (28).

3. The aluminum alloy die-casting equipment for casting automobile parts according to claim 1, characterized in that: The material taking and transferring mechanism (3) comprises a rotating motor (31) fixedly mounted on the upper end of the base (1); the output end of the rotating motor (31) is fixedly connected to a mounting frame (32); a first electric telescopic rod (33) is fixedly inserted into the top of the mounting frame (32); a lower movable end of the first electric telescopic rod (33) is fixedly connected to a transversely arranged second electric telescopic rod (34); and a movable end of the second electric telescopic rod (34) is fixedly connected to an electric clamp (35).

4. The aluminum alloy die-casting equipment for casting automobile parts according to claim 3, characterized in that: The demoulding liquid spraying mechanism (4) comprises a spray head (41) fixedly mounted on the lower end of the electric clamp (35); a side wall of the spray head (41) is fixedly connected to a feed pipe (42); a feed pump (43) is mounted on the feed pipe (42); and the feed pump (43) is fixedly mounted on the outer wall of the electric clamp (35).

5. The aluminum alloy die-casting equipment for casting automobile parts according to claim 1, characterized in that: The spraying amount compensation mechanism (5) comprises a compensation shell (51), the inner wall of the compensation shell (51) is fixedly connected to a plurality of guide slide bars (52) arranged side by side, the plurality of guide slide bars (52) are slidably sleeved on the outside with a same sliding plate (53), the upper end of the sliding plate (53) and the top of the inner wall of the compensation shell (51) are fixedly connected to a plurality of extrusion springs (54) sleeved on the outside of the guide slide bars (52), and an adjustment resistor rod arranged parallel to the guide slide bars (52) is fixedly installed on one side of the inner wall of the compensation shell (51). (55), one side of the sliding plate (53) is fixedly connected with an adjusting conductive contact (56) that is in electrical contact with the adjusting resistance rod (55), the lower end of the sliding plate (53) is fixedly provided with an adjusting permanent magnet plate (57), the bottom of the inner wall of the compensation shell (51) is fixedly provided with an adjusting electromagnetic plate (58) that is arranged opposite to the adjusting permanent magnet plate (57), and one side of the sliding plate (53) is also fixedly inserted with a micro electric push rod (59), and the moving end of the micro electric push rod (59) is fixedly connected with a limited position support block (510).

6. The aluminum alloy die-casting equipment for casting automobile parts according to claim 1, characterized in that: The accessory batch conveying mechanism (6) comprises a qualified product conveying belt (61) and a unqualified product conveying belt (62) fixedly mounted on the upper end of the base (1), wherein the qualified product conveying belt (61) and the unqualified product conveying belt (62) are arranged adjacent to each other.

7. The aluminum alloy die-casting equipment for casting automobile parts according to claim 1, characterized in that: The accessory weight tolerance detection and guiding mechanism (7) comprises two side plates (71) symmetrically fixedly connected to the upper end of the base (1); a flip plate (72) is rotatably connected between the two side plates (71); a flip motor (73) for driving the flip plate (72) to deflect is fixedly mounted on the outer wall of one of the side plates (71); and a weighing sensor (74) is fixedly mounted on the flip plate (72).

8. The aluminum alloy die-casting equipment for casting automobile parts according to claim 1, characterized in that: The quality non-compliant timely feedback mechanism (8) comprises a feedback circular shell (81), a rotating shaft (82) is rotatably connected at the center of the inner wall of the feedback circular shell (81), one end of the rotating shaft (82) extends through the feedback circular shell (81) and is fixedly connected to an anti-slip plate (83), a torsion spring (84) sleeved on the outer side of the rotating shaft (82) is fixedly connected between the anti-slip plate (83) and the feedback circular shell (81), a servo motor (85) is fixedly installed on the outer wall of the feedback circular shell (81), the output end of the servo motor (85) is connected to one end of the rotating shaft (82) through a magnetic connection component (86), a warning switch (87) is fixedly installed on one side of the inner wall of the feedback circular shell (81), and the shaft wall of the rotating shaft (82) is fixedly connected to an arc-shaped extrusion block (88) arranged corresponding to the position of the warning switch (87).

9. A die-casting process for aluminum alloys for automobile parts casting, which uses the aluminum alloy die-casting equipment for automobile parts casting as claimed in claim 1, characterized in that: The steps include: S1 through the lower mold (10), the hydraulic push rod (12) and the upper mold (13) with the completion of the automotive parts die casting work; S2. The ejector mechanism (2) is used to assist in ejecting the formed auto parts, and then the material transfer mechanism (3) automatically classifies and transports the auto parts based on the weight tolerance detection guide mechanism (7). The auto parts batch conveying mechanism (6) completes the delivery of the auto parts. S3. The release liquid spraying mechanism (4) cooperates with the spraying amount compensation mechanism (5) to accurately spray the release liquid on the lower mold (10); S4. Use the timely feedback mechanism for non-compliant quality (8) to promptly report issues related to the production of substandard auto parts.

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