A rapid correction system for die-casting thin-wall parts

Abstract

The utility model discloses a kind of quick correction systems of die-casting thin-wall parts, it is characterized by: including base, water tank, correction mould, water tank is set on base, correction mould is set in water tank, lifting support platform is provided in water tank, correction mould is set on lifting support platform, predetermined height's coolant is filled in water tank, correction mould includes upper die, lower die, upper die is fixed on top plate, top plate is set on the top surface of lifting support platform by stand, the top surface of lifting support platform is provided with limit frame, lower die is vertically movably set in limit frame, the bottom surface of lower die is provided with lifting top pressure device, upper die, lower die inside have heating oil circuit.The beneficial effects of the utility model include: using the mode of heating can heat shaping to die-casting product, then eliminate internal stress by continuous flattening alignment mode, then product is quickly cooled and shaped by rapid cooling, correction efficiency is high, easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of calibration, specifically to a rapid calibration system for die-cast thin-walled parts. Background Technology

[0002] Die casting is a highly efficient metal forming process, particularly suitable for the mass production of complex components with high dimensional accuracy requirements. With the increasing trend towards lightweighting in the automotive, aerospace, and 3C electronics industries, the application of thin-walled die-cast parts is becoming increasingly widespread. Thin-walled parts not only effectively reduce product weight but also save material costs. However, thin-walled structures also present significant technical challenges in the die-casting production process.

[0003] After die casting, the workpiece is highly susceptible to warping, twisting, and other deformations due to various factors such as mold temperature differences, internal stress release, and ejection imbalance. This deformation is particularly pronounced in thin-walled workpieces with large flat surfaces. If workpieces with deformation are directly fed into subsequent processing or assembly steps, it will lead to a series of quality problems, including inaccurate positioning, uneven machining allowances, and even assembly interference, severely impacting product yield and production efficiency.

[0004] The conventional practice is to perform correction after die casting. There are two main correction methods: 1. Manual tapping correction: Operators, relying on experience, use tools such as wooden mallets or rubber mallets to manually tap the deformed workpiece placed on a platform, judging whether the correction is satisfactory by visual inspection or simple measuring tools. This method has several drawbacks: First, the correction effect is highly dependent on the operator's personal experience and skills, resulting in poor quality stability and difficulty in ensuring consistency; second, manual correction is inefficient and cannot meet the high-speed requirements of modern production lines; third, improper tapping may damage the workpiece surface or cause internal micro-cracks, posing potential quality risks. 2. Placing the workpiece between simple tooling or platforms and applying pressure using a press for correction. This method requires a long period of time to slowly release the internal stress of the product, making short-term, efficient correction impossible. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this utility model provides a rapid correction system for die-cast thin-walled parts, which has a simple structure and is convenient for rapid correction of die-cast thin-walled parts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rapid correction system for die-cast thin-walled parts, characterized in that: it includes a base, a water tank, and a correction mold; the water tank is disposed on the base, the correction mold is disposed inside the water tank, a lifting support platform is disposed inside the water tank, the correction mold is disposed on the lifting support platform, the water tank contains coolant to a predetermined height, the correction mold includes an upper mold and a lower mold, the upper mold is fixed on a top plate, the top plate is disposed on the top surface of the lifting support platform via a column, a limit frame is disposed on the top surface of the lifting support platform, the lower mold is vertically movable within the limit frame, a lifting and pressing device is disposed on the bottom surface of the lower mold, and heating oil circuits are disposed inside the upper and lower molds.

[0008] Furthermore, the lifting and pressing device includes a cam mechanism and a spring top plate. The cam mechanism is disposed on the top surface of the lifting support platform, and the spring top plate is disposed above the cam roller of the cam mechanism. The top surface of the spring top plate has multiple springs, and the upper end of the springs contacts the bottom surface of the lower mold.

[0009] Furthermore, the lifting support platform is driven by a hydraulic cylinder or a pneumatic cylinder, which lowers the correction mold below the surface of the coolant.

[0010] The advantages of this utility model include: heating can be used to heat-shape die-cast products, and then internal stress can be eliminated by continuous flattening and alignment. Then, rapid cooling can be used to quickly cool and solidify the product, resulting in high correction efficiency and convenient operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the mold structure of this utility model. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0014] One such Figure 1-2 The rapid calibration system for die-cast thin-walled parts shown includes a base 1, a water tank 2, and a calibration mold 3. The water tank 2 is mounted on the base 1, and the calibration mold 3 is housed within the water tank 2. A lifting support platform 4 is installed inside the water tank 2, and the calibration mold 3 is mounted on the lifting support platform 4, allowing it to be raised and lowered under the action of the lifting support platform 4. The water tank 2 contains a predetermined height of coolant. When the lifting support platform 4 is in the lowered state, the product calibration chamber of the calibration mold 3 is below the liquid surface.

[0015] The calibration mold 3 includes an upper mold 31 and a lower mold 32. The upper mold 31 is fixed on a top plate 33, which is mounted on the top surface of the lifting support platform 4 via a column 34. A limit frame 35 is provided on the top surface of the lifting support platform 4. The lower mold 32 is vertically movably positioned within the limit frame 35, directly opposite the upper mold 31. A calibration cavity is provided between the lower mold 32 and the upper mold 31 for placing the product. Heating oil passages 36 are provided inside the molds 31 and 32, through which circulating heating oil is introduced, controlling the mold temperature to be maintained between 260℃ and 300℃.

[0016] The bottom surface of the lower mold 32 is equipped with a lifting and pressing device for periodically pressing the lower mold 32 upward. The lifting and pressing device includes a cam mechanism 5 and a spring top plate 6. The cam mechanism 5 is located on the top surface of the lifting support platform 4, and the spring top plate 6 is located above the cam roller of the cam mechanism 5. The cam mechanism 5 adopts chain drive and gear drive, and the drive motor is located on the top plate 33.

[0017] The top surface of the spring top plate 6 has multiple springs 7. The upper end of the spring 7 contacts the bottom surface of the lower die 32. The spring top plate 6 is periodically squeezed by the cam roller shaft, and the top pressure is evenly transmitted to the lower die 32 through the spring 7, so that the product can be squeezed from the direction of pushing the lower die 32 to the upper die 31.

[0018] The lifting support platform 4 is driven by a hydraulic cylinder or a pneumatic cylinder. The hydraulic cylinder is set on the base 1 and its cylinder rod extends into the water tank to lift the support platform. The cylinder rod and the water tank are sealed so that the correction mold 3 is lowered below the surface of the coolant.

[0019] The working principle of this invention is as follows: The product is placed in a heated mold, with the mold temperature controlled at 260-300 degrees Celsius. The mold is heated via an oil circuit (the mold is made of brass, which has fast heat conduction) to flatten and align it. The lower cam mechanism activates, driving the upper spring block to continuously apply pulsed pressure to the product, eliminating internal stress for 40-60 seconds. The upper and lower mold oil circuits immediately stop heating, and the lower support rod platform descends below the water surface, allowing the product and mold to cool down rapidly, ensuring the product quickly cools and solidifies to below 50 degrees Celsius. The support rod platform then rises, opening the mold and removing the part. Key feature: Ensures the flatness of all products is within 0.4mm.

[0020] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A rapid calibration system for die-cast thin-walled parts, characterized in that: The system includes a base (1), a water tank (2), and a calibration mold (3). The water tank (2) is located on the base (1), and the calibration mold (3) is located inside the water tank (2). A lifting support platform (4) is provided inside the water tank (2). The calibration mold (3) is located on the lifting support platform (4). The water tank (2) contains coolant of a predetermined height. The calibration mold (3) includes an upper mold (31) and a lower mold (32). The upper mold (31) is fixed on a top plate (33). The top plate (33) is located on the top surface of the lifting support platform (4) via a column (34). A limit frame (35) is provided on the top surface of the lifting support platform (4). The lower mold (32) is vertically movable within the limit frame (35). A lifting and pressing device is provided on the bottom surface of the lower mold (32). Heating oil circuits (36) are provided inside the upper mold (31) and the lower mold (32).

2. The rapid correction system for die-cast thin-walled parts according to claim 1, characterized in that: The lifting and pressing device includes a cam mechanism (5) and a spring top plate (6). The cam mechanism (5) is located on the top surface of the lifting support platform (4). The spring top plate (6) is located above the cam roller of the cam mechanism (5). The top surface of the spring top plate (6) has multiple springs (7). The upper end of the springs (7) is in contact with the bottom surface of the lower mold (32).

3. The rapid correction system for die-cast thin-walled parts according to claim 1, characterized in that: The lifting support platform (4) is driven by a hydraulic cylinder or a pneumatic cylinder, so that the correction mold (3) is lowered below the surface of the coolant.

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