Double-station shaft withdrawing tool for die casting

Abstract

The utility model discloses a double-station shaft withdrawing tool for die castings, which relates to the technical field of casting processing equipment and comprises a base, a mounting table is arranged above the base, and a first shaft withdrawing station and a second shaft withdrawing station are fixed at the top of the base. Counter bores for inserting steel shafts of the die castings are formed in the middle parts of the first shaft withdrawing station and the second shaft withdrawing station; transverse knife edge driving seats are arranged on the two sides of the first shaft withdrawing station, the transverse knife edge driving seats are in sliding connection with the base, transverse knife edges are fixed to the side walls, close to the first shaft withdrawing station, of the transverse knife edge driving seats, and a driving part for driving the transverse knife edge driving seats to move towards the first shaft withdrawing station is arranged at the bottom of the mounting table; two vertical knife edges are fixed at the bottom of the mounting table and above the second shaft withdrawing station; the steel shaft can be effectively guaranteed to be smoothly separated, the success rate of shaft withdrawing and the reuse rate of the steel shaft are improved, and when a plurality of die castings are processed, the waiting time can be shortened, and continuous operation is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of casting processing equipment, specifically to a dual-station shaft removal tooling for die casting. Background Technology

[0002] In the die-casting industry, the experimental phase is crucial for product optimization and quality control. Steel shafts, as a vital component of die-cast parts, are costly, making recycling and reuse a key cost-reduction measure after the experimental phase. To achieve the separation of the steel shaft from the die-cast part, shaft removal fixtures have emerged. These fixtures are designed to remove the steel shaft from the die-cast part, ensuring its reusability.

[0003] From an efficiency perspective, many traditional tooling fixtures only have a single workstation. When processing multiple die-cast parts, each part must be operated individually, resulting in low overall shaft removal efficiency and failing to meet the needs of large-scale experimental stages. During operation, over-cutting may damage the steel shaft, rendering it unusable; under-cutting will fail to effectively separate the steel shaft, requiring additional manual operation, which increases time and labor costs. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a dual-station shaft removal fixture for die castings, comprising a base, an mounting platform on top of the base, and a first and second shaft removal station fixed to the top of the base. Both the first and second shaft removal stations have countersunk holes in their middle sections for inserting the steel shaft of the die casting. Transverse knife-edge drive seats are located on both sides of the first shaft removal station, slidably connected to the base. A transverse knife-edge is fixed to the side wall of the transverse knife-edge drive seat near the first shaft removal station, with the thickness of the knife-edge gradually decreasing towards the first shaft removal station. A drive unit at the bottom of the mounting platform drives the transverse knife-edge drive seat towards the first shaft removal station. Two vertical knife-edges are fixed to the bottom of the mounting platform above the second shaft removal station. The lower end of each vertical knife-edge is triangular prism-shaped, and its thickness gradually increases from bottom to top.

[0005] Furthermore, the cross-section of the transverse blade drive seat is a right trapezoidal shape, and the inclined surface of the transverse blade drive seat is on the side away from the first retraction position; the drive component includes a side shovel fixed to the bottom of the mounting platform, the bottom of the side shovel is provided with a push groove, the push groove is an isosceles trapezoidal shape, and the inclined surface of the push groove is adapted to the inclined surface of the side shovel. The top wall of the push groove is mirror-fixed with two inclined guide posts, the axis of the inclined guide posts is parallel to the inclined surface of the push groove, and the transverse blade drive seat is provided with inclined holes for the inclined guide posts to be inserted.

[0006] Furthermore, guide strips are provided on the front and rear sides of the transverse blade drive seat. The guide strips are fixed on the base and slidably connected to the transverse blade drive seat.

[0007] Furthermore, upper limit posts are fixed at the four corners of the bottom of the mounting platform, and lower limit posts are fixed at the four corners of the top of the base.

[0008] Furthermore, positioning posts are fixed at the middle of both ends of the top of the base, and positioning platforms are fixed at the middle of both ends of the bottom of the mounting platform. Positioning holes for the positioning posts to be inserted are opened at the bottom of the positioning platforms.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. Through the cooperation of the side-sloping shovel, the inclined guide post, and the transverse cutter head, the movement and cutting force of the transverse cutter head can be precisely controlled. The inclined surface of the side-sloping shovel cooperates with the inclined surface on the transverse cutter head, allowing the transverse cutter head to cut both ends of the die casting, avoiding damage to the steel shaft caused by improper force control. The triangular prism design and thickness variation of the vertical cutter head enable it to accurately provide an outward pushing force at the cutting point of the die casting at the second retraction station, ensuring that the steel shaft can be smoothly detached, improving the success rate of retraction and the reuse rate of the steel shaft.

[0011] 2. Setting up a first and second uncoupling station allows for targeted processing of die-cast parts at different stages, significantly improving uncoupling efficiency. Compared to traditional single-station tooling, this reduces waiting time when processing multiple die-cast parts, enabling continuous operation and significantly improving overall work efficiency, thus meeting the uncoupling requirements of die-cast parts during large-scale experimental phases.

[0012] 3. The guide rails on both the front and rear sides of the transverse blade drive seat provide stable guidance for its movement, ensuring the accurate positioning of the transverse blade during cutting. The upper and lower limit posts effectively restrict the downward movement of the mounting platform, preventing damage to the equipment or die-cast parts due to excessive downward pressure. The cooperation between the positioning posts and the positioning platform ensures precise alignment between the mounting platform and the base during installation and use, improving the overall stability and reliability of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model when it is not in operation;

[0014] Figure 2 This is a schematic diagram of the structure during cutting in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the die casting after cutting at the first retraction station in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the die casting after cutting at the second retraction station in this utility model.

[0017] The reference numerals in the attached drawings are explained as follows: 1. Base; 2. Mounting platform; 3. Die-cast part; 4. Steel shaft; 51. First shaft retraction station; 52. Horizontal blade drive seat; 53. Horizontal blade; 61. Second shaft retraction station; 62. Vertical blade; 71. Side slant shovel; 72. Slanted guide post; 73. Slanted hole; 8. Guide strip; 9. Upper limit post; 10. Lower limit post; 11. Positioning post; 12. Positioning platform. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] A dual-station unspindle tooling for die castings, such as Figures 1 to 4As shown, the device includes a base 1, with a mounting platform 2 on top of the base 1. A first retraction station 51 and a second retraction station 61 are fixed to the top of the base 1. Both the first and second retraction stations 51 and 61 have countersunk holes in their middle sections for inserting the steel shaft 4 of the die-cast part 3. Transverse blade drive seats 52 are located on both sides of the first retraction station 51, and are slidably connected to the base 1. Guide rails 8 are located on the front and rear sides of the transverse blade drive seats 52, and are fixed to the base 1 and connected to the transverse blade drive seats 52. The seat 52 is slidably connected. A transverse knife edge 53 is fixed on the side wall of the transverse knife edge drive seat 52 near the first unspinning station 51. The thickness of the transverse knife edge 53 gradually decreases towards the first unspinning station 51. The bottom of the mounting platform 2 drives the transverse knife edge drive seat 52 to move towards the first unspinning station 51. Two vertical knife edges 62 are fixed on the bottom of the mounting platform 2 above the second unspinning station 61. The lower end of the vertical knife edge 62 is triangular prism-shaped, and the thickness of the lower end of the vertical knife edge 62 gradually increases from bottom to top.

[0022] The base 1 supports all components, and the mounting platform 2 drives the relevant components. The dual-station design and countersunk hole facilitate the placement of the die-cast part 3 and the positioning of the steel shaft 4. The transverse blade drive seat 52, guide rail 8, and transverse blade 53 constitute the first-station cutting assembly, with the drive unit controlling its movement. The vertical blade 62 is used for subsequent processing at the second station.

[0023] like Figure 1 and Figure 2 As shown, in this embodiment, the cross section of the transverse blade drive seat 52 is a right trapezoidal shape, and the inclined surface of the transverse blade drive seat 52 is on the side away from the first retraction station 51; the drive component includes a side inclined shovel 71 fixed to the bottom of the mounting platform 2, the bottom of the side inclined shovel 71 is provided with a push groove, the push groove is an isosceles trapezoidal shape, and the inclined surface of the push groove is adapted to the inclined surface of the side inclined shovel 71. The top wall of the push groove is mirror-fixed with two inclined guide posts 72, the axis of the inclined guide posts 72 is parallel to the inclined surface of the push groove, and the transverse blade drive seat 52 is provided with an inclined hole 73 for the inclined guide posts 72 to be inserted.

[0024] Among them, the shape of the transverse blade drive seat 52 matches the drive component, and the side shovel 71, push groove, and inclined guide post 72 work together with the inclined hole 73 of the transverse blade drive seat 52 to convert the vertical movement of the mounting platform 2 into the horizontal movement of the transverse blade drive seat 52 by using the inclined surface and inclined structure.

[0025] like Figure 1 and Figure 2As shown, in this embodiment, upper limit posts 9 are fixed at the four corners of the bottom of the mounting platform 2, and lower limit posts 10 are fixed at the four corners of the top of the base 1. Positioning posts 11 are fixed at the middle of both ends of the top of the base 1, and positioning platforms 12 are fixed at the middle of both ends of the bottom of the mounting platform 2. Positioning platforms 12 have positioning holes at the bottom for the positioning posts 11 to be inserted.

[0026] The system includes limit and positioning structures. Upper and lower limit posts 10 and the lower limit post 10 restrict the descent of the mounting platform 2 to prevent excessive downward pressure. Positioning post 11 cooperates with positioning platform 12 to ensure precise alignment between the mounting platform 2 and base 1 during installation.

[0027] The working principle of this utility model is as follows:

[0028] The workflow of the first unspinning station 51 is as follows: First, the mounting platform 2 is installed on the standard hydraulic press, and the die-cast part 3 is placed in the first unspinning station 51, with the steel shaft 4 of the die-cast part 3 inserted into the countersunk hole. The hydraulic press is started, and the power generated by the hydraulic press drives the mounting platform 2 to move downward as a whole. As the mounting platform 2 descends, the side shovel 71 and the inclined guide post 72 at the bottom of the mounting platform 2 also move downward together. Because the inclined surface of the side shovel 71 cooperates with the inclined surface on the transverse cutter head drive seat 52, a horizontal component force is generated. This component force acts on the transverse cutter head drive seat 52, causing it to move inward along the slide on the base 1. The transverse cutter head drive seat 52 drives the transverse cutter head 53, which is fixed on its side wall, to move closer to the first unspinning station 51, and the transverse cutter head 53 cuts both ends of the die-cast part 3. During the cutting process, the thickness of the transverse cutting edge 53 gradually decreases towards the first retraction station 51, enabling the cutting of the die-cast part 3. Simultaneously, to avoid damaging the steel shaft 4, a certain amount of adhesion is retained at the cut position of the die-cast part 3. As the mounting table 2 continues to descend, the upper limit post 9 contacts the lower limit post 10, marking the end of the downward movement. The hydraulic press controls the mounting table 2 to return to its original position. During this return process, the inclined guide post 72 drives the transverse cutting edge drive seat 52 back to its original position, completing the operation of the first retraction station 51.

[0029] The workflow of the second uncoupling station 61 is as follows: The die-cast part 3, which has undergone preliminary processing at the first uncoupling station 51, is placed into the second uncoupling station 61, and the steel shaft 4 is inserted into the countersunk hole for positioning. The hydraulic press is restarted, and the hydraulic press drives the mounting table 2 to move downwards as a whole. The vertical cutting edge 62 at the bottom of the mounting table 2 moves downwards accordingly. The vertical cutting edge 62 is triangular prism-shaped at its lower end, and its thickness gradually increases from bottom to top. When the vertical cutting edge 62 contacts the cutting point of the die-cast part 3 at the first uncoupling station 51, it provides an outward pushing force to the cutting point of the die-cast part 3. As the vertical cutting edge 62 continues to press down, the thickness at the contact point between the vertical cutting edge 62 and the die-cast part 3 increases, and this outward pushing force gradually increases, eventually causing the outer shell of the die-cast part 3 to completely break open, thereby completely detaching the steel shaft 4 from the die-cast part 3, completing the entire uncoupling process. The above shows and describes the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A dual-station uncoupling fixture for die casting, comprising a base (1) and a mounting platform (2) above the base (1), characterized in that: The top of the base (1) is fixed with a first retraction station (51) and a second retraction station (61). The middle of the first retraction station (51) and the second retraction station (61) are provided with countersunk holes for inserting the steel shaft (4) of the die-cast part (3). The first retraction station (51) is provided with transverse knife-edge drive seats (52) on both sides. The transverse knife-edge drive seats (52) are slidably connected to the base (1). The transverse knife-edge drive seats (52) are fixed with transverse knives near the side wall of the first retraction station (51). The thickness of the transverse cutting edge (53) gradually decreases towards the first retraction station (51). The bottom of the mounting platform (2) drives the transverse cutting edge drive seat (52) to move towards the first retraction station (51). The bottom of the mounting platform (2) has two vertical cutting edges (62) fixed above the second retraction station (61). The vertical cutting edges (62) are triangular prisms at the lower end, and the thickness of the vertical cutting edges (62) gradually increases from bottom to top.

2. The dual-station retraction fixture for die castings according to claim 1, characterized in that: The cross section of the transverse blade drive seat (52) is a right trapezoid shape, and the inclined surface of the transverse blade drive seat (52) is on the side away from the first retraction station (51); the drive component includes a side shovel (71) fixed to the bottom of the mounting platform (2), the bottom of the side shovel (71) is provided with a push groove, the push groove is an isosceles trapezoid shape, and the inclined surface of the push groove is adapted to the inclined surface of the side shovel (71). The top wall of the push groove is mirror-fixed with two inclined guide posts (72), the axis of the inclined guide posts (72) is parallel to the inclined surface of the bell push groove, and the transverse blade drive seat (52) is provided with an inclined hole (73) for the inclined guide posts (72) to be inserted.

3. The dual-station retraction tooling for die castings according to claim 1, characterized in that: The front and rear sides of the transverse blade drive seat (52) are provided with guide strips (8), which are fixed on the base (1) and slidably connected to the transverse blade drive seat (52).

4. The dual-station retraction fixture for die castings according to claim 1, characterized in that: The four corners of the bottom of the mounting platform (2) are fixed with upper limit posts (9), and the four corners of the top of the base (1) are fixed with lower limit posts (10).

5. The dual-station retraction fixture for die castings according to claim 1, characterized in that: The base (1) has a positioning post (11) fixed at the middle of both ends of the top, and the mounting platform (2) has a positioning platform (12) fixed at the middle of both ends of the bottom. The bottom of the positioning platform (12) has a positioning hole for the positioning post (11) to be inserted.

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