A straightening device for square aluminum alloy die-cast parts

Abstract

This utility model provides a straightening device for square aluminum alloy die-cast parts, relating to the field of workpiece straightening. It includes two opposing stops, a first slider and a second slider positioned between the two stops; the stops, the first slider, and the second slider together form a hollow space; it also includes a pressure block, wider at the top and narrower at the bottom, with its side edges extending outwards; the first slider and the second slider have grooves that engage with the side edges of the pressure block. When the pressure block moves from top to bottom into the hollow space, the engagement of the side edges and the grooves drives the first slider and the second slider away from each other, or when the pressure block moves out of the hollow space in the opposite direction, it pulls the first slider and the second slider closer together. The side edges of the pressure block and the grooves form a dovetail design, which allows the two sliders to be pulled back during pressure block reset, solving the problem of small product cavities preventing the installation of springs.

Description

Technical Field

[0001] This utility model relates to the field of workpiece straightening, and in particular to a straightening device for square aluminum alloy die-cast parts. Background Technology

[0002] In the production of aluminum alloy die-cast parts, when the high-temperature castings cool to room temperature after die casting, dimensional and shape deformations occur due to material shrinkage and internal stress release, resulting in products that cannot achieve ideal dimensions. To correct this deformation, existing processes employ physical shaping methods, which use special shaping fixtures to apply pressure to the product. However, traditional methods rely on manual pressure operation, which is difficult to precisely control. Insufficient pressure can lead to ineffective shaping, while excessive pressure can cause product crushing, cracking, and scrapping. Furthermore, manual operation is inefficient and costly, resulting in poor product consistency and stability, and insufficient market competitiveness. To improve product stability and consistency, automated shaping and straightening equipment has emerged. The core of this type of equipment, the shaping fixture, is difficult to implement with traditional mechanisms that rely on spring compression / extension to directly control the slider's extension and retraction for small die-cast parts with limited structural space. This is because arranging springs in a small space is difficult, and the pressure accuracy and motion stability cannot meet the requirements of short-stroke, high-precision shaping. Utility Model Content

[0003] The purpose of this utility model is to provide a straightening device for square aluminum alloy die-cast parts to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A straightening device for square aluminum alloy die-cast parts includes two oppositely arranged blocks, and a first slider and a second slider disposed between the two blocks. The stop block, the first slider, and the second slider together enclose and form a hollow space; It also includes a pressing block, which is wide at the top and narrow at the bottom, and the side edges of the pressing block extend outwards; The first and second sliders have grooves that match the side edges of the pressure block. When the pressure block moves from top to bottom into the hollow space, the first and second sliders are driven to move away from each other through the cooperation of the side edges and the grooves. Alternatively, when the pressure block moves out of the hollow space in the opposite direction, the first and second sliders are pulled closer together.

[0005] Preferably, it also includes a spring disposed at the bottom of the hollow space, the spring being used to provide a driving force for the pressure block to move out of the hollow space.

[0006] Preferably, it also includes a power component for driving the pressing block to move into the hollow space.

[0007] Preferably, the power assembly includes a cylinder and a top cover fixing seat connected to the movable end of the cylinder. The top cover fixing seat is equipped with a top cover, which presses down on the pressing block during cylinder operation.

[0008] Preferably, it also includes a stop block mounting base at the bottom of the stop block for fixing the stop block.

[0009] Preferably, it also includes a base, and the stop block mounting seat is fixed on the base.

[0010] Preferably, the system also includes a frame with a support frame inside. The support frame is fitted with a T-slot plate, the base is fixed on the T-slot plate, and the cylinder is mounted on the top of the frame.

[0011] Preferably, the square aluminum alloy die-cast part is fitted with a stop block, a first slider and a second slider. When the first slider and the second slider move away from each other, the square aluminum alloy die-cast part is straightened.

[0012] The beneficial effects of this utility model are: 1. The side edge of the pressure block and the slide groove form a dovetail design. This design allows the two sliders to be pulled back during the pressure block reset, solving the problem of the small inner cavity of the product, which makes it impossible to install springs.

[0013] 2. The wedge-shaped structure of the pressure block drives the first and second sliders to expand outward, which can smoothly convert the vertical pressure into the horizontal correction force. This force is evenly applied to the inner wall of the square box, avoiding local stress concentration. The corrected workpiece has high dimensional accuracy and good batch product consistency. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a straightening device for square aluminum alloy die-cast parts. Figure 2 This is a structural diagram of the correction section; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 3 A cross-sectional schematic diagram of the structure shown; Figure 5 for Figure 4 The cross-sectional view shown is a schematic diagram of a further sectioned cross-section. Figure 6 for Figure 1 The diagram shows the structure of the device after the baffle is installed; Reference numerals in the attached drawings: 1. Frame; 2. Support; 3. T-slot plate; 4. Base; 5. Stop block mounting seat; 6. Limiting rod; 7. Pressure block; 701. Block body; 702. Rib; 8. Top cover; 9. Sleeve; 10. Top cover fixing seat; 11. Cylinder; 12. First rod; 13. Second rod; 14. Stop block; 15. First slider; 16. Second slider; 17. Spring. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0018] Example 1 This embodiment presents a straightening device for square aluminum alloy die-cast parts. Please refer to [link / reference]. Figures 1-6 The overall structure of the correction device includes a frame 1 serving as a supporting foundation. This frame 1 is typically constructed from welded or bolted profiles, providing sufficient rigidity and stability. A support frame 2 is positioned at the center of the frame 1, and a T-slot plate 3 is horizontally mounted on the support frame 2. The T-slot plate 3 facilitates the installation and positioning of subsequent functional components. A base 4 is fixedly installed in the central area of ​​the T-slot plate 3. A stop block mounting seat 5 is mounted on the base 4. The stop block mounting seat 5 serves as the base for the core correction component. The core correction component includes two stops 14 arranged in any opposing direction, which are securely fixed to the stop block mounting seat 5. A first slider 15 and a second slider 16 are slidably accommodated between the two stops 14, and these sliders are perpendicular to the arrangement direction of the stops 14. The stop block 14, the first slider 15 and the second slider 16 together form a central hollow space. The outer contours of these four components together constitute a combination that matches the inner cavity contour of the aluminum alloy die-casting of the square box to be corrected.

[0019] The key driving mechanism in this embodiment is located within a hollow space. This mechanism includes a pressure block 7, which has a special shape. Please refer to [link / reference needed]. Figure 3It exhibits a wedge-shaped feature, wider at the top and narrower at the bottom, along the vertical direction. More specifically, the pressure block 7 includes a block body 701 as described above, and ribs 702 integrally formed outward on the sides facing the first slider 15 and the second slider 16. Correspondingly, grooves matching the ribs 702 are respectively opened on the inner walls of the first slider 15 and the second slider 16 facing the hollow space. The grooves have a certain inclination angle to adapt to the ribs 702.

[0020] To drive the movement of the pressure block 7, a power assembly is provided at the top of the device. Specifically, a cylinder 11 is vertically mounted downwards on the top crossbeam of the frame 1. The movable end of the piston rod of the cylinder 11 is connected to a top cover fixing seat 10, and a top cover 8 is mounted on the top cover fixing seat 10. The top cover 8 is located directly above the pressure block 7, and its bottom surface has a travel space with the top surface of the pressure block 7. In addition, four first rods 12 are provided at the bottom of the top cover 8, and second rods 13 are provided on the base 4 to cooperate with them; at the same time, a sleeve 9 is provided adjacent to the first rods 12, and a limiting rod 6 is installed on the base 4 to cooperate with the sleeve 9. The above design serves to constrain and limit the movement. In order to achieve automatic reset of the pressure block 7, at least three springs 17 are provided at the bottom of the hollow space, that is, on the bottom surface of the stop block mounting seat 5. The upper end of the spring 17 abuts against the bottom surface of the pressure block 7 and is in a pre-compressed state.

[0021] The workflow is as follows: In the initial state, the cylinder 11 is in the reset state and the piston rod is retracted. The top cover 8 is in the high position. Under the elastic force of the spring 17, the pressure block 7 is pushed upward and is at the highest point of its movement stroke. At this time, due to the effect of the wedge structure, the first slider 15 and the second slider 16 are in a close-to-each-other position. The operator puts a square aluminum alloy die-cast part to be corrected on top, so that its inner wall covers the outside of the combination composed of the stop block 14, the first slider 15 and the second slider 16.

[0022] The operator starts the equipment, and the control system introduces compressed air into the rodless chamber of cylinder 11. The piston rod of cylinder 11 extends, driving the top cover fixing seat 10 and top cover 8 to move steadily downward. Top cover 8 presses down on pressure block 7, overcoming the elastic force of spring 17, and driving pressure block 7 to wedge vertically downward into the hollow space. During the downward movement of pressure block 7, its side edge slides within the grooves of the first slider 15 and the second slider 16. Due to the wedge-shaped surface principle, the vertical downward pressure of pressure block 7 is decomposed into a strong horizontal thrust, thereby driving the first slider 15 and the second slider 16 to steadily expand outward away from each other along the contact surface with the stop block 14. When the first slider 15 and the second slider 16 expand outward, their outer surfaces tightly adhere to and forcefully push against the inner wall of the square aluminum alloy die-cast part, opening the concave side wall outward until the preset correct size is reached. At this time, the stop block 14, as a fixed support surface, ensures dimensional stability in the other two directions. Cylinder 11 can maintain pressure for a period of time to eliminate the elastic recovery of the material.

[0023] After the pressure holding period ends, the control system switches the air path of cylinder 11, causing its piston rod to retract. The top cover 8 then rises, eliminating the downward pressure on the pressure block 7. With the release of the elastic potential energy stored in the lower spring 17, the pressure block 7 is quickly pushed upwards back to its initial position. As the pressure block 7 moves upwards, the sliding engagement between the side edge of the pressure block 7 and the slide groove guides the first slider 15 and the second slider 16 back to their initial, close-to-each-other positions. At this point, a gap is created between the corrected die-cast part and the core correction component, allowing the operator to easily remove it.

[0024] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0025] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A straightening device for square aluminum alloy die-cast parts, characterized in that: Includes two opposing stops; The first slider and the second slider are disposed between the two stops; The stop block, the first slider, and the second slider together enclose and form a hollow space; It also includes a pressure block, which is wide at the top and narrow at the bottom, and the side edge of the pressure block extends outward. The first slider and the second slider have grooves that match the side edge of the pressure block. When the pressure block moves from top to bottom into the hollow space, the first slider and the second slider are driven to move away from each other through the cooperation of the side edge and the groove. Or when the pressure block moves out of the hollow space in the opposite direction, the first slider and the second slider are pulled closer to each other.

2. The straightening equipment for square aluminum alloy die-cast parts according to claim 1, characterized in that: It also includes a spring located at the bottom of the hollow space, which provides the driving force for the pressure block to move out of the hollow space.

3. The straightening equipment for square aluminum alloy die-cast parts according to claim 1, characterized in that: It also includes a power unit for driving the pressing block to move into the hollow space.

4. The straightening equipment for square aluminum alloy die-cast parts according to claim 3, characterized in that: The power assembly includes a cylinder and a top cover mounting base connected to the movable end of the cylinder. The top cover mounting base is fitted with a top cover, which presses down on a pressing block during cylinder operation.

5. The straightening equipment for square aluminum alloy die-cast parts according to claim 1, characterized in that: It also includes a stop block mounting bracket at the bottom of the stop block for fixing the stop block.

6. The straightening equipment for square aluminum alloy die-cast parts according to claim 5, characterized in that: It also includes a base, and the stop block mounting seat is fixed on the base.

7. The straightening equipment for square aluminum alloy die-cast parts according to claim 6, characterized in that: It also includes a frame, inside which there is a support frame, on which a T-slot plate is mounted, and the base is fixed on the T-slot plate.

8. The straightening equipment for square aluminum alloy die-cast parts according to claim 7, characterized in that: The cylinder is mounted on top of the frame.

9. The straightening equipment for square aluminum alloy die-cast parts according to claim 1, characterized in that: The square aluminum alloy die-cast part is fitted with a stop block, a first slider and a second slider. When the first slider and the second slider move away from each other, the square aluminum alloy die-cast part is straightened.

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