High-efficiency tool for low-pressure casting

Abstract

The utility model relates to the technical field of tools, in particular to a high-efficiency tool for low-pressure casting. Comprising a rectangular bottom plate, a reference base fixed to the center of the top of the bottom plate and used for casting parts, side plates oppositely arranged on the left side and the right side of the bottom plate, and a screw used for limiting the casting parts is arranged at the centers of the top ends of the side plates in a penetrating mode; a screw for limiting the sliding strip penetrates through the end wall of the top end, close to the sliding strip, of the side plate, a top seat is arranged at the top of the sliding strip, an opening is formed in the middle of the top seat in a penetrating mode, and a rotating shaft is installed on the lower end wall of the opening. When the sliding strips and the top seats in the modules are used, the height difference can be formed to be used for being matched with casting end walls of different sizes and shapes, universality and adaptability of the whole design are higher, the number of tool pieces is reduced, and a single casting does not need to be provided with a single tool.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a high-efficiency tooling for low-pressure casting. Background Technology

[0002] Low-pressure casting refers to a casting method in which the mold is typically placed above a sealed crucible, and compressed air is introduced into the crucible to create a low pressure (0.06–0.15 MPa) on the surface of the molten metal. This causes the molten metal to rise through a riser pipe to fill the mold and control solidification. This casting method is widely used. Low-pressure casting technology is used in the casting of automotive engine parts. After casting, tooling is used to limit the casting during subsequent processing to ensure stability and reliability.

[0003] When using the tooling, the components are placed on the tooling, and the screws on the tooling are used to rotate and displace, pressing the casting and limiting and positioning the casting. However, due to the different shapes of the castings, the flexibility and adjustability of the tooling are poor. The tooling and casting need to be designed to match. A single tooling is adapted to a single size of casting so that the screw positioning parts of the casting and the tooling can be matched. This results in a large number of tooling configurations, which is not energy-efficient or environmentally friendly. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency tooling for low-pressure casting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency tooling for low-pressure casting includes a rectangular base plate, a reference seat for casting fixed at the top center of the base plate, side plates arranged opposite each other on the left and right sides of the base plate, a screw for limiting the casting through the top center of the side plates, a slide bar movably inserted inside the side plates, a screw for limiting the slide bar through the end wall of the side plates near the top of the slide bar, a top seat provided at the top of the slide bar, an opening in the middle of the top seat, a rotating shaft installed at the lower end wall of the opening, a rotating seat rotatably installed at the upper end of the rotating shaft, a stud for limiting the casting through the middle of the rotating seat, the rotating seat rotating through the rotating shaft to change the orientation of the stud, a threaded rod through the top end wall of the top seat corresponding to the rotating seat, and a limiting plate provided at the bottom end of the threaded rod for contacting and limiting the rotating seat.

[0007] Preferably, the base plate is fixedly connected to the reference seat and the side plate, and the side plate and the screw are threadedly connected.

[0008] Preferably, the base plate and the slide bar are movable, and there are two sets of slide bars, with four slide bars in each set, and the number of slide bars is the same as that of the top seat.

[0009] Preferably, the top seat is rotatably connected to the rotating seat via a rotating shaft, and the opening size of the top seat is larger than the size of the rotating seat, and the opening can accommodate the rotating seat to rotate by ±30 degrees.

[0010] Preferably, the top of the rotating base is toothed, and the bottom wall of the limiting disk is also toothed, so that when the bottom wall of the limiting disk contacts the top wall of the rotating base, there is high frictional force.

[0011] Preferably, the screw and the limiting plate are fixedly connected, and the vertical central axes of the screw and the limiting plate coincide.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. When the sliders and top seats in multiple modules are used, they can form a height difference to adapt to the end walls of castings of different sizes and shapes. The overall design has stronger versatility and adaptability, and reduces the number of tooling parts, eliminating the need for a single tooling configuration for a single casting.

[0014] 2. Rotate the shaft, rotate the turntable and the studs inserted at the end wall of the turntable, change the orientation of the studs. When the studs are screwed, let the end of the studs after the orientation is adjusted abut against the inclined end wall of the casting, so that the side end of the casting is limited and the casting is in a stable state. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the side plate and slider;

[0018] Figure 3 for Figure 1 A side view of the top seat;

[0019] Figure 4 for Figure 1 A schematic diagram of the rotating base and stud.

[0020] In the diagram: 1. Base plate; 2. Reference seat; 3. Side plate; 4. Screw; 5. Slide bar; 6. Screw; 7. Top seat; 8. Opening; 9. Rotating shaft; 10. Rotating seat; 11. Stud; 12. Threaded bar; 13. Limiting plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution for a high-efficiency tooling for low-pressure casting:

[0023] like Figure 1-4 As shown, a high-efficiency tooling for low-pressure casting includes a rectangular base plate 1, a reference seat 2 for casting fixed at the top center of the base plate 1, side plates 3 arranged opposite to each other on the left and right sides of the base plate 1, and a screw 4 for limiting the casting through the top center of the side plates 3. The base plate 1 is fixedly connected to the reference seat 2 and the side plates 3, and the side plates 3 and the screw 4 are threaded together. The engine part casting produced by low-pressure casting is placed through the reference seat 2. The screw 4 is first screwed so that the end of the screw 4 contacts the casting, and the casting is simply abutted and limited to be in a pre-positioned state.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, a slide bar 5 is movably inserted inside the side plate 3. A screw 6 for limiting the slide bar 5 is inserted into the end wall of the side plate 3 near the top of the slide bar 5. A top seat 7 is provided on the top of the slide bar 5. The bottom plate 1 and the slide bar 5 are movable. There are two sets of slide bars 5, and each set has four slide bars 5. The number of slide bars 5 and top seats 7 is the same. By moving the slide bar 5 upward, the height of the slide bar 5 and the top seat 7 can be controlled and adjusted. A single slide bar 5 and a single top seat 7 are paired to form a mold. The slider 5 and top seat 7 of each module can be adjusted in height independently, so that when multiple modules of slider 5 and top seat 7 are used, they can form a height difference to adapt to the end walls of castings of different sizes and shapes. The overall design has stronger versatility and adaptability, and reduces the number of tooling parts. There is no need to configure a single tooling for a single casting. Preferably, each slider 5 and top seat 7 is provided with four in each group, for a total of two groups, and tightening screws 6 are used to lock and limit the slider 5 and top seat 7 after the position is adjusted.

[0025] like Figure 1 , Figure 3 and Figure 4As shown, an opening 8 is provided in the middle of the top seat 7. A rotating shaft 9 is installed on the lower end wall of the opening 8. A rotating seat 10 is rotatably installed on the upper end of the rotating shaft 9. A stud 11 for limiting the casting is provided in the middle of the rotating seat 10. The rotating seat 10 rotates through the rotating shaft 9 to change the orientation of the stud 11. A threaded rod 12 is provided on the top end wall of the top seat 7 corresponding to the rotating seat 10. A limiting plate 13 is provided at the bottom end of the threaded rod 12 for contacting and limiting the rotating seat 10. The top seat 7 is rotatably connected to the rotating seat 10 via a rotating shaft 9. The opening 8 of the top seat 7 is larger than that of the rotating seat 10, and the opening 8 can accommodate the rotating seat 10 to rotate ±30 degrees. The top of the rotating seat 10 is toothed, and the bottom wall of the limiting plate 13 is also toothed, so that when the bottom wall of the limiting plate 13 contacts the top wall of the rotating seat 10, it has high friction. The screw 12 and the limiting plate 13 are fixedly connected, and the screw 12 and the limiting plate 13 are... The vertical central axis of the casting is coincident. Rotating the pivot 9 at opening 8 rotates the rotating base 10 and the stud 11 passing through the end wall of the rotating base 10, changing the orientation of the stud 11. When the stud 11 is screwed in, the end of the tilted stud 11 abuts against the tilted end wall of the casting, limiting the side of the casting and stabilizing it for subsequent stable processing. Opening 8 is designed to accommodate the rotating base 10 and the stud 11. Preferably, the opening 8 has a rotation of at least 30 degrees, and its length, width, and height are all greater than those of the rotary seat 10. The length-to-width ratio of the opening 8 is greater than 5. The vertical central axis of the opening 8 coincides with the vertical central axis of the rotary seat 10. When the screw 12 is turned, it drives the limiting plate 13 to move downward, so that the toothed lower end wall of the limiting plate 13 is in close contact with the toothed upper end wall of the rotary seat 10, generating high friction to lock and limit the rotary seat 10 after rotation and repositioning.

[0026] Working Principle: The engine casting produced by low-pressure casting is placed on the reference seat 2. First, the screw 4 is screwed so that the end of the screw 4 contacts the casting, providing simple resistance and limiting the casting to a pre-positioned state. The slider 5 moves upward, making the height of the slider 5 and the top seat 7 controllable and adjustable. A single slider 5 and a single top seat 7 are paired to form a module. The slider 5 and top seat 7 of a single module can be adjusted in height independently. When multiple modules are used, the slider 5 and top seat 7 can form a height difference to adapt to the end walls of castings of different sizes and shapes. The overall design has stronger versatility and adaptability, and reduces the number of tooling parts, eliminating the need for a single tooling for a single casting. Preferably, there are four sliders 5 and four top seats 7 in each group, for a total of two groups. The rotating seat is rotated by the rotating shaft 9 at the opening 8. The stud 11, which passes through the end wall of the rotating base 10, changes the orientation of the stud 11. When the stud 11 is screwed, the end of the stud 11, after being tilted, abuts against the tilted end wall of the casting, thereby limiting the side of the casting and stabilizing it. This facilitates subsequent stable processing of the casting. The opening 8 is designed to accommodate the rotating base 10 and the stud 11 rotating at least 30 degrees. Preferably, the length, width, and height of the opening 8 are all greater than the length, width, and height of the rotating base 10, and the length-to-width ratio of the opening 8 is greater than 5. The vertical center axis of the opening 8 coincides with the vertical center axis of the rotating base 10. When the screw 12 is screwed, it drives the limiting plate 13 to move downward, so that the toothed lower end wall of the limiting plate 13 is tightly attached to the toothed upper end wall of the rotating base 10, generating high friction to lock and limit the rotating base 10 after it has been rotated and tilted.

[0027] The foregoing has shown and described 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 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 the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency tooling for low-pressure casting, comprising a rectangular base plate (1), a reference seat (2) for casting fixed at the top center of the base plate (1), side plates (3) arranged opposite to each other on the left and right sides of the base plate (1), and a screw (4) for limiting the casting through the top center of the side plates (3), characterized in that, A slide bar (5) is movably inserted inside the side plate (3). A screw (6) for limiting the slide bar (5) is inserted through the end wall of the side plate (3) near the top of the slide bar (5). A top seat (7) is provided at the top of the slide bar (5). An opening (8) is provided in the middle of the top seat (7). A rotating shaft (9) is installed at the lower end wall of the opening (8). A rotating seat (10) is rotatably installed at the upper end of the rotating shaft (9). A stud (11) for limiting the casting is inserted through the middle of the rotating seat (10). The rotating seat (10) rotates through the rotating shaft (9) to change the orientation of the stud (11). A threaded rod (12) is inserted through the top end wall of the top seat (7) corresponding to the rotating seat (10). A limiting plate (13) for contacting and limiting the rotating seat (10) is provided at the bottom end of the threaded rod (12).

2. The high-efficiency tooling for low-pressure casting according to claim 1, characterized in that, The base plate (1) is fixedly connected to the reference base (2) and the side plate (3), and the side plate (3) and the screw (4) are threadedly connected.

3. The high-efficiency tooling for low-pressure casting according to claim 1, characterized in that, The base plate (1) and the slide bar (5) are movable, and there are two sets of slide bars (5), and each set of slide bars (5) has four slide bars, and the number of slide bars (5) is the same as that of the top seat (7).

4. The high-efficiency tooling for low-pressure casting according to claim 1, characterized in that, The top seat (7) is rotatably connected to the rotating seat (10) via a rotating shaft (9), and the size of the opening (8) of the top seat (7) is larger than the size of the rotating seat (10), and the opening (8) can accommodate the rotating seat (10) to rotate by ±30 degrees.

5. The high-efficiency tooling for low-pressure casting according to claim 1, characterized in that, The top of the rotating seat (10) is toothed, and the bottom wall of the limiting disk (13) is also toothed, so that when the bottom wall of the limiting disk (13) contacts the top wall of the rotating seat (10), it has high frictional force.

6. The high-efficiency tooling for low-pressure casting according to claim 1, characterized in that, The screw (12) and the limiting plate (13) are fixedly connected, and the vertical central axes of the screw (12) and the limiting plate (13) coincide.

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