Semi-automatic straightening tool for aluminum alloy subframe multi-bending support beam
By designing a semi-automatic straightening fixture with horizontal and vertical straightening mechanisms, the problem of detecting deformation caused by the aluminum alloy chassis subframe support beam during casting and heat treatment was solved, achieving improved part shape consistency and processing efficiency, and reducing 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
- 2026-06-02
AI Technical Summary
Existing technologies have failed to effectively address the difficulties in detection and identification, as well as the low processing efficiency, caused by deformation of aluminum alloy chassis subframe support beams during casting, placement, and heat treatment. In particular, they have not considered the springback caused by the component frame structure and stress release, which affects processing quality and cost.
A semi-automatic straightening fixture including horizontal and vertical straightening mechanisms was designed. Using components such as positioning columns, pressure blocks and hydraulic cylinders, the fixture accurately straightens the multi-bending support beams of the aluminum alloy subframe through multi-directional pushing and pulling and straightening blocks, ensuring that the parts reach the standard shape before processing.
This significantly improved the product qualification rate and machining efficiency of the multi-bending support beam of the aluminum alloy subframe, reduced processing costs, and ensured the shape consistency of parts before machining.
Smart Images
Figure CN224309353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alignment tooling, specifically to a semi-automatic alignment tooling for a multi-bending support beam of an aluminum alloy subframe. Background Technology
[0002] Currently, new energy is the main trend for the transformation and upgrading of the global automotive industry and its green development, and it is also a strategic choice for the leapfrog development of my country's automotive industry. Lightweight chassis is an inevitable choice for energy conservation and emission reduction. However, during the casting, placement, process flow, and subsequent heat treatment of multi-bending support beam castings, the frame support beams are extremely prone to deformation, and the deformation trend of each part is inconsistent, making detection and identification extremely difficult. After flowing to the machining process, deformed products exhibit issues such as thin hole walls, hole deviation, and lack of shine during machining, affecting processing efficiency and wasting processing costs.
[0003] Deformation is the biggest technical challenge in the industry. Only by solving the deformation problem can the product qualification rate be significantly improved, the processing flow be kept smooth, and costs be saved. At present, there is no universally recognized and effective process solution for straightening the support beam of aluminum alloy chassis subframe. Some methods involve pressing the parts together with a wooden hammer, others use screw tightening mechanisms to press the deformed parts, and still others use hydraulic cylinders for correction.
[0004] Existing technologies do not take into account the frame structure of the parts and the springback caused by stress release. The selection of the calibration location does not take into account the deformation bending point. After the calibration is qualified, the external load is removed and the product is compressed to release stress, which causes springback. Furthermore, the force of manual hammering is insufficient to cause stable plastic deformation in large chassis support beam parts, and only uncertain elastic deformation will occur, which cannot be used for calibration. Utility Model Content
[0005] The purpose of this utility model is to address the above-mentioned shortcomings by providing a semi-automatic alignment tooling for a multi-bending support beam of an aluminum alloy subframe.
[0006] This utility model includes a workbench, on which a horizontal alignment mechanism is provided. The horizontal alignment mechanism includes a pair of positioning columns, a pair of horizontal upper pressure blocks, a fixing groove, and a pair of horizontal alignment cylinders mounted on the workbench. A pressure head is provided on the top of the horizontal upper pressure block. The fixing groove is located between the pair of positioning columns. A U-shaped push-pull head is provided at the end of the piston rod of the horizontal alignment cylinder. The horizontal upper pressure block is located between the pair of horizontal alignment cylinders.
[0007] The workbench is equipped with a vertical alignment mechanism, which includes a pair of positioning grooves, a pair of middle upper pressure blocks, end pressure blocks and a vertical alignment cylinder installed on the workbench. The top of the middle upper pressure block and the end pressure block are respectively equipped with pressure heads. The end pressure block is an L-shaped pressure block. The pair of positioning grooves are located between the end pressure block and the vertical alignment cylinder.
[0008] A curvature correction cylinder is provided between a pair of middle upper pressure blocks, and a U-shaped push-pull head is provided at the end of the curvature correction cylinder.
[0009] A hydraulic cylinder passage hole is provided on the worktable. A vertically aligning hydraulic cylinder is installed at the bottom of the hydraulic cylinder passage hole. The piston rod of the vertically aligning hydraulic cylinder extends upward through the hydraulic cylinder passage hole. An L-shaped alignment block is provided at the end of the piston rod of the vertically aligning hydraulic cylinder. An alignment rod is provided on the upper part of the L-shaped alignment block. A vertical alignment area is formed between the alignment rod and the inner wall of the L-shaped alignment block.
[0010] A detection block is provided on one side of the U-shaped push-pull head of the horizontal alignment cylinder, and a detection pin is provided on the upper part of the detection block.
[0011] The pressure heads at the top of the horizontal upper pressure block, the middle upper pressure block, and the end pressure blocks are all detachable and installable via bolts.
[0012] The fixing groove is a U-shaped groove, and there are adjusting bolts at both ends of the fixing groove. The size of the internal storage area of the fixing groove can be adjusted by turning the knob to adjust the bolts.
[0013] The top of the positioning post has a cylindrical positioning groove.
[0014] The advantages of this invention are: it ensures that the aluminum alloy subframe multi-bending support beam blanks sent to the machining process can meet the processing requirements, greatly improving the product qualification rate and machining efficiency, and significantly reducing costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a top view schematic diagram of the horizontal alignment mechanism of this utility model.
[0017] Figure 3 This is a top view schematic diagram of the vertical alignment mechanism of this utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the present invention, which shows the installation of the multi-bending support beam of the aluminum alloy subframe on the tooling.
[0019] Figure 5 This is a schematic diagram of the multi-bending support beam structure of the aluminum alloy subframe of this utility model. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the 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 invention without inventive effort are within the scope of protection of the invention.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] In the description of the embodiments of this invention, 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 product is in use, they are only for the convenience of describing the invention 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 invention. Furthermore, if terms such as "first" or "second" appear in the description of this invention, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] In the description of the embodiments of the present invention, 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 the present invention based on the specific circumstances.
[0025] As shown in the attached figure, the present invention includes a workbench 1, on which a horizontal alignment mechanism is provided. The horizontal alignment mechanism includes a pair of positioning columns 2, a pair of horizontal upper pressure blocks 3, a fixing groove 4 and a pair of horizontal alignment cylinders 5 installed on the workbench 1. A pressure head is provided on the top of the horizontal upper pressure block 3. The fixing groove 4 is located between the pair of positioning columns 2. A U-shaped push-pull head is provided at the end of the piston rod of the horizontal alignment cylinder 5. The horizontal upper pressure block 3 is located between the pair of horizontal alignment cylinders 5.
[0026] The workbench 1 is equipped with a vertical alignment mechanism, which includes a pair of positioning grooves 6, a pair of middle upper pressure blocks 7, end pressure blocks 8 and a vertical alignment cylinder 9 installed on the workbench 1. The top of the middle upper pressure block 7 and the end pressure block 8 are respectively provided with pressure heads. The end pressure block 8 is an L-shaped pressure block. The pair of positioning grooves 6 are located between the end pressure block 8 and the vertical alignment cylinder 9.
[0027] A bending correction cylinder 10 is provided between a pair of middle upper pressure blocks 7, and a U-shaped push-pull head is provided at the end of the bending correction cylinder 10.
[0028] The workbench 1 has a cylinder passage hole. The vertical alignment cylinder 9 is installed at the bottom of the cylinder passage hole. The piston rod of the vertical alignment cylinder 9 extends upward through the cylinder passage hole. An L-shaped alignment block 11 is provided at the end of the piston rod of the vertical alignment cylinder 9. An alignment rod 12 is provided on the upper part of the L-shaped alignment block 11. A vertical alignment area is formed between the alignment rod 12 and the inner wall of the L-shaped alignment block 11.
[0029] A detection block 13 is provided on one side of the U-shaped push-pull head of the horizontal alignment cylinder 5, and a detection pin is provided on the upper part of the detection block 13.
[0030] The pressure heads at the top of the horizontal upper pressure block 3, the middle upper pressure block 7, and the end pressure block 8 are all detachable and installable via bolts.
[0031] The fixing groove 4 is a U-shaped groove, and adjusting bolts are provided at both ends of the fixing groove 4. The size of the internal storage area of the fixing groove 4 can be adjusted by turning the knob to adjust the bolts.
[0032] The top of the positioning post 2 has a cylindrical positioning groove.
[0033] Example 1: The aluminum alloy subframe multi-bend support beam 100 is a C-shaped bend beam, which is prone to twisting deformation at the bend. Therefore, two positioning reference fixing methods are adopted to correct the horizontal and vertical directions respectively in order to achieve overall shape correction.
[0034] The possible deformation of the aluminum alloy subframe multi-bending support beam 100 is at both ends of the bending beam, and it will undergo two types of deformation: horizontal and vertical. Taking the two cylindrical bottom of the aluminum alloy subframe multi-bending support beam 100 as fixed points, the aluminum alloy subframe multi-bending support beam 100 (hereinafter referred to as the workpiece) is placed on a pair of positioning columns 2, and pressed from above by the pressure heads of a pair of horizontal upper pressure blocks 3. The two ends of the workpiece are respectively placed in the U-shaped push-pull heads of the horizontal straightening cylinder 5. The horizontal straightening cylinder 5 is activated to push and pull the two ends of the workpiece to straighten them. After the straightening is completed, the detection pin on the detection block 13 is used to detect whether the two ends of the workpiece are adjusted in the horizontal direction.
[0035] After horizontal alignment is completed, vertical alignment is performed. The bolts on the pressure head are loosened, the workpiece is removed, and the workpiece is placed in a pair of positioning grooves 6. The pressure head of the middle upper pressure block 7 is used to press it from above. One end of the workpiece is placed in the end pressure block 8 and pressed by the pressure head. The other end of the workpiece is placed in the vertical alignment area. The vertical alignment cylinder 9 is activated to push and pull the other end of the workpiece for alignment. The middle of the workpiece is located in the U-shaped push-pull head of the curvature alignment cylinder 10. The curvature alignment cylinder 10 pushes the middle of the workpiece back and forth to perform curvature alignment. After alignment is completed, the bolts on the pressure head of the middle upper pressure block 7 are loosened, and the workpiece is removed.
Claims
1. A semi-automatic straightening fixture for a multi-bending support beam of an aluminum alloy subframe, comprising a worktable (1), wherein a horizontal straightening mechanism is provided on the worktable (1), characterized in that... The horizontal alignment mechanism includes a pair of positioning columns (2), a pair of horizontal upper pressure blocks (3), a fixing groove (4) and a pair of horizontal alignment cylinders (5) installed on the workbench (1). The top of the horizontal upper pressure block (3) is provided with a pressure head, the fixing groove (4) is located between the pair of positioning columns (2), the piston rod end of the horizontal alignment cylinder (5) is provided with a U-shaped push-pull head, and the horizontal upper pressure block (3) is located between the pair of horizontal alignment cylinders (5).
2. The semi-automatic alignment fixture for a multi-bending support beam of an aluminum alloy subframe according to claim 1, characterized in that, A vertical alignment mechanism is provided on the workbench (1). The vertical alignment mechanism includes a pair of positioning grooves (6), a pair of middle upper pressure blocks (7), end pressure blocks (8) and a vertical alignment cylinder (9) installed on the workbench (1). The top of the middle upper pressure block (7) and the end pressure block (8) are respectively provided with pressure heads. The end pressure block (8) is an L-shaped pressure block. The pair of positioning grooves (6) are located between the end pressure block (8) and the vertical alignment cylinder (9).
3. The semi-automatic alignment fixture for a multi-bending support beam of an aluminum alloy subframe according to claim 2, characterized in that, A bending correction cylinder (10) is provided between a pair of middle upper pressure blocks (7), and a U-shaped push-pull head is provided at the end of the bending correction cylinder (10).
4. The semi-automatic alignment fixture for a multi-bending support beam of an aluminum alloy subframe according to claim 3, characterized in that, A cylinder passage hole is opened on the workbench (1). A vertical alignment cylinder (9) is installed at the bottom of the cylinder passage hole. The piston rod of the vertical alignment cylinder (9) extends upward through the cylinder passage hole. An L-shaped alignment block (11) is provided at the end of the piston rod of the vertical alignment cylinder (9). An alignment rod (12) is provided on the upper part of the L-shaped alignment block (11). A vertical alignment area is formed between the alignment rod (12) and the inner wall of the L-shaped alignment block (11).
5. The semi-automatic alignment fixture for a multi-bending support beam of an aluminum alloy subframe according to claim 4, characterized in that, A detection block (13) is provided on one side of the U-shaped push-pull head of the horizontal alignment cylinder (5), and a detection pin is provided on the upper part of the detection block (13).
6. The semi-automatic alignment fixture for a multi-bending support beam of an aluminum alloy subframe according to claim 5, characterized in that, The pressure heads at the top of the horizontal upper pressure block (3), the middle upper pressure block (7), and the end pressure block (8) are all detachably installed by bolts.
7. The semi-automatic alignment fixture for a multi-bending support beam of an aluminum alloy subframe according to claim 1, characterized in that, The fixing groove (4) is a U-shaped groove. Adjusting bolts are provided at both ends of the fixing groove (4). The size of the internal storage area of the fixing groove (4) can be adjusted by turning the knob to adjust the bolts.
8. The semi-automatic alignment fixture for a multi-bending support beam of an aluminum alloy subframe according to claim 1, characterized in that, The top of the positioning post (2) has a cylindrical positioning groove.