A mechanism for preventing the aluminum clamping of the steering gear core flying

Abstract

The utility model provides a kind of prevent steering gear core-pulling fly aluminium aluminium clamping mechanism, it is related to steering gear die casting mould technical field, including exhaust groove, core-pulling sleeve and core-pulling mechanism;The core-pulling sleeve is arranged in mould side, and casting is cast on mould, and the bottom of casting is provided with multiple groups of intercommunicating exhaust groove, and core-pulling sleeve inside is inserted with mould core, the mould core is fixed on core-pulling mechanism, the core-pulling mechanism includes mounting plate, clamping plate assembly and moving assembly, the moving assembly promotes mounting plate and clamping plate assembly to drive mould core to move, and mould core is extracted from core-pulling sleeve, the utility model structure's core-pulling and exhaust groove do not have direct contact, the temperature of core-pulling is more stable, while the movement of core-pulling is guaranteed by core-pulling sleeve, gap is uniform and guiding length is longer, and the stability of guiding is better, the movement gap of core-pulling is controlled in reasonable range, and the matching gap of core-pulling is not affected by other factors.

Description

Technical Field

[0001] This utility model relates to the field of steering gear die casting mold technology, specifically to a mechanism for preventing aluminum clipping during steering gear core pulling. Background Technology

[0002] Steering gear die-casting molds often include core-pulling mechanisms. If these mechanisms require slag traps and venting, the failure rate during mold production is relatively high. Core pulling is prone to jamming, and aluminum fly-through is common around the core-pulling area, affecting the continuity of mold production. The initial core-pulling mechanism consists of the following parts: the casting; venting grooves; the core puller; after the moving and fixed molds open, the core puller moves away from the casting under the action of a bent pin, and then the casting is demolded. The movement of the core puller is guided by the moving mold core. However, because the moving mold core only guides the core puller partially, failing to form a complete circumference guide, the stability of the core-pulling mechanism is relatively poor in actual production. Furthermore, the core puller also has venting grooves. Since the core puller is a moving part, the sealing area is also susceptible to aluminum fly-through due to the influence of machining accuracy and fitter's mold fitting accuracy. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a mechanism for preventing aluminum clipping and core pulling in steering gears is provided to solve the existing problems.

[0004] To achieve the above objectives, a mechanism for preventing aluminum slippage and clamping in steering gear core pulling is provided, comprising an exhaust groove, a core pulling sleeve, and a core pulling mechanism; the core pulling sleeve is disposed on the side of a mold, and a casting is cast on the mold, the bottom of the casting is provided with multiple sets of interconnected exhaust grooves, and a mold core is inserted inside the core pulling sleeve, the mold core being fixed on the core pulling mechanism, the core pulling mechanism comprising a mounting plate, a clamping plate assembly, and a moving assembly, the moving assembly pushing the mounting plate and the clamping plate assembly to move the mold core, and the mold core being pulled out of the core pulling sleeve.

[0005] Furthermore, the mounting plate includes a guide groove horizontally opened at the top, a core mold limiting groove for placing the mold core in the middle, and a trapezoidal clamping groove at the bottom, and the core mold limiting groove and the core pulling sleeve have the same axial direction.

[0006] Furthermore, the clamping plate assembly includes a lower clamping plate and an upper clamping plate, and a guide block is provided above the lower surface of the upper clamping plate, and a clamping groove for clamping the mold core is provided between the lower clamping plate and the upper clamping plate.

[0007] Furthermore, the guide block provided on the clamping plate assembly is locked inside the guide groove, while the lower clamping plate is installed inside the clamping plate groove.

[0008] Furthermore, the core-pulling sleeve is fixedly connected to the mold, and the axis of the core-pulling sleeve is collinear with the axis of the mold core.

[0009] Furthermore, the moving component includes a bent pin and a drive cylinder. One end of the bent pin is fixedly connected to the piston rod of the drive cylinder, and the other end is hinged to the mounting plate; the drive mold core moves smoothly along the axis of the core-pulling sleeve.

[0010] The beneficial effects of this utility model are as follows: In this invention, the core-pulling and venting grooves do not directly contact each other, resulting in more stable core-pulling temperature. Furthermore, the core-pulling movement is guided by a core-pulling sleeve, which provides uniform gaps and a longer guide length, enhancing guidance stability. This keeps the core-pulling movement clearance within a reasonable range, preventing the core-pulling fit clearance from being affected by other factors and reducing the likelihood of jamming. The core-pulling sleeve is fixed, reducing the difficulty of mold fitting for fitters and significantly improving the situation of aluminum fly-off. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the installation of the core-pulling mechanism of this utility model. Figure 2 This is a schematic diagram of the aluminum-clad structure of this utility model; Figure 3 This is a schematic diagram of the clamping plate installation of the present invention. Figure 4 This is a schematic diagram of the clamping plate of the utility model structure.

[0012] In the diagram: 1. Casting; 2. Venting groove; 3. Mold core; 4. Core pulling sleeve; 5. Mold; 6. Core pulling mechanism; 61. Mounting plate; 611. Guide groove; 612. Clamping plate groove; 613. Core mold limiting groove; 62. Clamping plate assembly; 621. Upper clamping plate; 622. Guide block; 623. Clamping groove; 624. Lower clamping plate; 63. Moving assembly. Detailed Implementation

[0013] Please refer to Figures 1 to 4 As shown, this utility model provides a mechanism to prevent aluminum from flying out of the steering gear core during core pulling, including an exhaust groove 2, a core pulling sleeve 4, and a core pulling mechanism 6; the core pulling sleeve 4 is disposed on the side of the mold 5, and a casting 1 is cast on the mold 5. The bottom of the casting 1 is provided with multiple sets of interconnected exhaust grooves 2, and a mold core 3 is inserted inside the core pulling sleeve 4. The mold core 3 is fixed on the core pulling mechanism 6. The core pulling mechanism 6 includes a mounting plate 61, a clamping plate assembly 62, and a moving assembly 63. The moving assembly 63 pushes the mounting plate 61 and the clamping plate assembly 62 to move the mold core 3, and the mold core 3 is pulled out of the core pulling sleeve 4.

[0014] Mounting plate 61 includes a guide groove 611 horizontally opened at the top, a core mold limiting groove 613 for placing the mold core 3 in the middle, and a trapezoidal clamping groove 612 at the bottom, and the core mold limiting groove 613 and the core pulling sleeve 4 have the same axial direction.

[0015] The clamping plate assembly 62 includes a lower clamping plate 624 and an upper clamping plate 621. A guide block clamping plate assembly 622 is provided above the lower surface of the upper clamping plate 621, and a clamping groove clamping plate assembly 623 for clamping the mold core 3 is provided between the lower clamping plate 624 and the upper clamping plate 621.

[0016] The guide block clamping plate assembly 622 on the clamping plate assembly 62 is locked inside the guide groove 611, while the lower clamping plate 624 is installed inside the clamping plate groove 612. During the movement, the mold core 3 will move inside the clamping plate groove 612 to avoid jamming.

[0017] The die-casting machine drives the moving mold to separate from the fixed mold, with an opening distance of 200mm, ensuring that the casting 1 is separated from the mold cavity before the mold opening action stops. The driving cylinder of the moving component 63 is vented, the piston rod extends, and drives the mounting plate 61 to move along the guide direction via a bent pin; the mold core 3 is simultaneously pulled out along the axis of the core-pulling sleeve 4 along with the mounting plate 61, with a pulling distance of 80mm to ensure that the mold core 3 is completely separated from the channel of the casting 1, and the core-pulling time is controlled within 1.5-2 seconds. After the mold core 3 is pulled out, the ejection mechanism of the die-casting machine is activated, and the ejector pin pushes the casting 1 out of the cavity of the mold 5, completing the demolding. The driving cylinder is vented in the reverse direction, the piston rod retracts, and drives the mold core 3 to reset along the axis of the core-pulling sleeve 4. After reset, the depth of the mold core 3 inserted into the core-pulling sleeve 4 returns to the initial position during assembly; after reset, the moving mold and fixed mold close, and the next die-casting cycle begins.

[0018] The core-pulling sleeve 4 is fixedly connected to the mold 5, and the axis of the core-pulling sleeve 4 is collinear with the axis of the mold core 3.

[0019] The moving component 63 includes a bent pin and a drive cylinder. One end of the bent pin is fixedly connected to the piston rod of the drive cylinder, and the other end is hinged to the mounting plate 61. The drive mold core 3 moves smoothly along the axis of the core-pulling sleeve 4.

[0020] The outer circumferential surface of the mold core 3 does not directly contact the inner wall of the venting groove 2, and the minimum distance between the mold core 3 and the venting groove 2 is 0.2-0.6mm. This prevents the mold core 3 from deforming due to the high temperature of the molten aluminum in the venting groove 2. Since the core pulling and the venting groove do not directly contact each other, the temperature of the core pulling is relatively stable. At the same time, the movement guidance of the core pulling is ensured by the core pulling sleeve 4, which has a uniform gap and a long guide length, resulting in better guidance stability and making it less likely for the core pulling to jam. The core pulling sleeve 4 is fixed, reducing the difficulty of mold fitting for fitters and significantly improving the situation of aluminum flying off.

Claims

1. A mechanism for preventing aluminum clipping during steering gear core pulling, comprising an exhaust groove (2), a core-pulling sleeve (4), and a core-pulling mechanism (6); characterized in that: The core-pulling sleeve (4) is set on the side of the mold (5), and the mold (5) is cast with a casting (1). The bottom of the casting (1) is provided with multiple sets of connected venting grooves (2), and the core-pulling sleeve (4) is inserted with a mold core (3). The mold core (3) is fixed on the core-pulling mechanism (6). The core-pulling mechanism (6) includes a mounting plate (61), a clamping plate assembly (62), and a moving assembly (63). The moving assembly (63) pushes the mounting plate (61) and the clamping plate assembly (62) to move the mold core (3), and the mold core (3) is pulled out of the core-pulling sleeve (4).

2. The steering gear core-pulling and aluminum-clamping mechanism according to claim 1, characterized in that: The mounting plate (61) includes a guide groove (611) with a horizontal opening at the top, a core mold limiting groove (613) for placing the mold core (3) in the middle, and a trapezoidal clamping plate groove (612) at the bottom, and the core mold limiting groove (613) and the core pulling sleeve (4) have the same axial direction.

3. The steering gear core-pulling and aluminum-clamping mechanism according to claim 2, characterized in that: The clamping plate assembly (62) includes a lower clamping plate (624) and an upper clamping plate (621), and a guide block (622) is provided above the lower surface of the upper clamping plate (621), and a clamping groove (623) for clamping the mold core (3) is provided between the lower clamping plate (624) and the upper clamping plate (621).

4. The steering gear core-pulling and aluminum-clamping mechanism according to claim 3, characterized in that: The guide block (622) provided on the clamping plate assembly (62) is locked inside the guide groove (611), while the lower clamping plate (624) is installed inside the clamping plate groove (612).

5. The steering gear core-pulling and aluminum-clamping mechanism according to claim 4, characterized in that: The core-pulling sleeve (4) is fixedly connected to the mold (5), and the axis of the core-pulling sleeve (4) is collinear with the axis of the mold core (3).

6. The steering gear core-pulling and aluminum-clamping mechanism according to claim 1, characterized in that: The moving component (63) includes a bent pin and a driving cylinder. One end of the bent pin is fixedly connected to the piston rod of the driving cylinder, and the other end is hinged to the mounting plate (61). The driving mold core (3) moves smoothly along the axis of the core-pulling sleeve (4).

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