A semi-automatic straightening tool for U-shaped thin-walled beams
By using a semi-automatic straightening fixture with hydraulic cylinders to correct the deformation of U-shaped thin-walled beams, the problem of deformation of U-shaped thin-walled beams in aluminum alloy chassis during casting and heat treatment was solved, improving the product qualification rate and saving processing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGMEN HANGTE NON-FERROUS METAL CASTING CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-19
AI Technical Summary
The U-shaped thin-walled beam of the aluminum alloy chassis is prone to deformation during casting and heat treatment, which makes detection and identification difficult and affects processing efficiency and cost.
A semi-automatic straightening fixture is adopted, which uses a combination of a cantilever horn positioning and clamping cylinder, a U-shaped beam positioning and clamping cylinder, a thin-walled beam middle straightening cylinder, and multiple straightening cylinders to correct deformed parts through the extension and retraction movement of hydraulic cylinders.
This improved the blank qualification rate of U-shaped thin-walled beams, avoided product scrap, and saved processing costs.
Smart Images

Figure CN224372460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting straightening technology, specifically to a semi-automatic straightening fixture for U-shaped thin-walled beams. Background Technology
[0002] Lightweight chassis is an inevitable choice for energy conservation and emission reduction. However, U-shaped thin-walled beams are prone to deformation during the casting, process flow and subsequent heat treatment of aluminum alloy chassis castings. Moreover, the deformation trend of each part is inconsistent, making it extremely difficult to detect and identify. After being transferred to the machining process, deformed products may have thin hole walls, hole deviation and lack of light during processing, which affects processing efficiency and wastes processing costs. Therefore, it is necessary to inspect and correct the castings to ensure casting quality. Utility Model Content
[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing a semi-automatic straightening fixture for U-shaped thin-walled beams.
[0004] This utility model includes a straightening table, on which are respectively provided a pair of cantilever horn positioning and clamping cylinders and a U-shaped beam positioning and clamping cylinder for fixing a U-shaped thin-walled beam, as well as a thin-walled beam middle straightening cylinder, a pair of U-shaped beam joint straightening cylinders, a pair of U-shaped beam end first straightening cylinders and a U-shaped beam end second straightening cylinder for straightening the U-shaped thin-walled beam. The pair of cantilever horn positioning and clamping cylinders, the pair of U-shaped beam joint straightening cylinders and the pair of U-shaped beam end straightening cylinders are all symmetrically installed on the straightening table. The straightening table is respectively provided with a cantilever horn support seat that cooperates with the cantilever horn positioning and clamping cylinder and a U-shaped beam support seat that cooperates with the U-shaped beam positioning and clamping cylinder.
[0005] The straightening table is equipped with a detection column in the middle of the thin-walled beam and a pair of detection columns at the ends of the U-shaped beam.
[0006] The cantilever horn support base is provided with a cantilever horn positioning groove, and a locking screw is provided on one side of the cantilever horn positioning groove.
[0007] The orthopedic table is equipped with a U-shaped beam arm positioning support seat. The top of the U-shaped beam arm positioning support seat is provided with a U-shaped beam arm positioning groove, and a locking screw is provided on one side of the U-shaped beam arm positioning groove.
[0008] The piston rods of the thin-walled beam middle straightening cylinder, the U-shaped beam joint straightening cylinder, the first straightening cylinder at the end of the U-shaped beam, and the second straightening cylinder at the end of the U-shaped beam are all provided with straightening block mounting grooves, and C-shaped straightening blocks can be adjusted and installed on the straightening block mounting grooves.
[0009] The advantages of this invention are: by analyzing the structure, the deformed parts are found, and then the extension and retraction motion of the hydraulic cylinder is used to correct the deformed parts of the U-shaped thin-walled beam. This can greatly improve the blank qualification rate of the product, avoid the waste of processing and casting resources due to product scrap caused by deformation, and save costs significantly. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the structure of this utility model in use. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0014] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the 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 of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0015] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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.
[0016] As shown in the attached drawings, this utility model includes a straightening table 1. The straightening table 1 is equipped with a pair of cantilever horn positioning and clamping cylinders 2 and a U-shaped beam positioning and clamping cylinder 3 for fixing the U-shaped thin-walled beam, as well as a thin-walled beam middle straightening cylinder 5, a pair of U-shaped beam connection straightening cylinders 6, a pair of U-shaped beam end first straightening cylinders 7 and a U-shaped beam end second straightening cylinder 8 for straightening the U-shaped thin-walled beam. The pair of cantilever horn positioning and clamping cylinders 2, the pair of U-shaped beam connection straightening cylinders 6 and the pair of U-shaped beam end straightening cylinders 7 are all symmetrically installed on the straightening table 1. The straightening table 1 is equipped with a cantilever horn support seat 9 that cooperates with the cantilever horn positioning and clamping cylinder 2 and a U-shaped beam support seat 10 that cooperates with the U-shaped beam positioning and clamping cylinder 3.
[0017] The thin-walled beam in this case has a U-shaped structure with cantilevered ram's horn-shaped sections extending from the bottom to both sides. The middle position and the bending points at both ends of the bottom of the U-shaped structure are deformation and bending points. The cantilevered arms of the U-shaped structure are too long and are prone to twisting and deformation in the vertical direction. At the same time, the two cantilevered ram's horn-shaped sections are too long and thin and are prone to deformation. In this case, a pair of cantilevered ram's horn positioning and clamping cylinders 2 and U-shaped beam positioning and clamping cylinders 3 are used for positioning and fixing.
[0018] The thin-walled beam middle straightening cylinder 5 moves back and forth along the Y-axis to straighten the middle of the thin-walled beam; a pair of U-shaped beam joint straightening cylinders 6 straighten the bent ends of the thin-walled beam at the bottom in the Z-axis direction; a pair of U-shaped beam end straightening cylinders 7 straighten the two cantilever arms of the thin-walled beam in the X-axis direction. In this case, the U-shaped beam positioning clamping cylinder 3 and the second straightening cylinder 8 at the end of the U-shaped beam are located at the two ends of the opening of the thin-walled beam, respectively. The U-shaped beam positioning clamping cylinder 3 clamps and fixes one end of the opening of the thin-walled beam, while the second straightening cylinder 8 at the end of the U-shaped beam straightens the other end of the opening of the thin-walled beam in the Z-axis direction.
[0019] Furthermore, the orthopedic table 1 is equipped with a detection column 12 in the middle of the thin-walled beam and a pair of detection columns 13 at the ends of the U-shaped beam.
[0020] The detection column 12 in the middle of the thin-walled beam and the detection columns 13 at the ends of the pair of U-shaped beams are used to detect the correction parts and observe whether the correction is qualified.
[0021] Furthermore, the extended ram's horn support 9 is provided with an extended ram's horn positioning groove, and a locking screw is provided on one side of the extended ram's horn positioning groove.
[0022] Furthermore, the orthopedic table 1 is provided with a U-shaped beam arm positioning support 14, the top of which is provided with a U-shaped beam arm positioning groove, and a locking screw is provided on one side of the U-shaped beam arm positioning groove.
[0023] After the thin-walled beam is placed, the two cantilever horns and one of the cantilever arms are fixed to the sides by locking screws. The thin-walled beam is quickly corrected by coordinating the fixing points and correction points.
[0024] Furthermore, the piston rods of the thin-walled beam middle straightening cylinder 5, the U-shaped beam connection straightening cylinder 6, the U-shaped beam end first straightening cylinder 7, and the U-shaped beam end second straightening cylinder 8 are all provided with straightening block mounting grooves, and C-shaped straightening blocks 16 are adjustablely installed on the straightening block mounting grooves.
[0025] The C-shaped orthotic block 16 can slide and adjust its position within the orthotic block mounting slot. Before the thin-walled beam is positioned and clamped, the C-shaped orthotic block 16 on the pair of U-shaped beam connection orthotic cylinders 6 and the second orthotic cylinder 8 at the end of the U-shaped beam is pulled out to facilitate the positioning of the thin-walled beam. Then, the C-shaped orthotic block 16 is inserted into the corresponding orthotic part of the thin-walled beam, and the movement and orthotic movement of the C-shaped orthotic block 16 is controlled by the corresponding cylinder.
Claims
1. A U-shaped thin-walled beam semi-automated straightening fixture, characterized in that The device includes a straightening table (1), on which are respectively provided a pair of cantilever horn positioning and clamping cylinders (2) and a U-shaped beam positioning and clamping cylinder (3) for fixing the U-shaped thin-walled beam, as well as a thin-walled beam middle straightening cylinder (5), a pair of U-shaped beam connection part straightening cylinders (6), a pair of U-shaped beam end first straightening cylinders (7) and U-shaped beam end second straightening cylinders (8) for straightening the U-shaped thin-walled beam. The pair of cantilever horn positioning and clamping cylinders (2), the pair of U-shaped beam connection part straightening cylinders (6) and the pair of U-shaped beam end straightening cylinders (7) are all symmetrically installed on the straightening table (1). The straightening table (1) is respectively provided with a cantilever horn support seat (9) that cooperates with the cantilever horn positioning and clamping cylinder (2) and a U-shaped beam support seat (10) that cooperates with the U-shaped beam positioning and clamping cylinder (3).
2. The U-shaped thin-walled beam semi-automatic rectifying tool according to claim 1, characterized in that The straightening table (1) is equipped with a detection column (12) in the middle of the thin-walled beam and a pair of detection columns (13) at the ends of the U-shaped beam.
3. The U-shaped thin-walled beam semi-automatic rectifying tool according to claim 1, characterized in that The cantilever horn support base (9) is provided with a cantilever horn positioning groove, and a locking screw is provided on one side of the cantilever horn positioning groove.
4. The semi-automatic straightening fixture for a U-shaped thin-walled beam according to claim 1, characterized in that... The orthopedic table (1) is provided with a U-shaped beam arm positioning support (14), the top of the U-shaped beam arm positioning support (14) is provided with a U-shaped beam arm positioning groove, and a locking screw is provided on one side of the U-shaped beam arm positioning groove.
5. The U-shaped thin-walled beam semi-automated rectifying tooling of claim 1, wherein The piston rods of the thin-walled beam middle straightening cylinder (5), the U-shaped beam connection straightening cylinder (6), the U-shaped beam end first straightening cylinder (7) and the U-shaped beam end second straightening cylinder (8) are all provided with straightening block mounting grooves, and C-shaped straightening blocks (16) can be adjusted and installed on the straightening block mounting grooves.