Rolling machining device for automobile parts

Abstract

The utility model relates to the field of automobile part machining, in particular to an automobile part rolling machining device. Comprising a base and a workpiece, the base is detachably connected with a plurality of mounting plates, the mounting plates are rotationally connected with a first roller set, a second roller set and a third roller set, the first roller set, the second roller set and the third roller set are matched with the workpiece, and the first roller set is used for pre-bending the two sides of the workpiece; the second roller set and the third roller set are used for further bending the workpiece, the mounting plate is rotationally connected with a first forming roller and a second forming roller, the first forming roller and the second forming roller are used for pre-bending the middle of the workpiece, the mounting plate is rotationally connected with a side pressing roller set, and the side pressing roller set is used for extruding the two sides of the workpiece. By the adoption of the bending device, a workpiece can be accurately bent step by step, and the size precision and the shape precision of a product are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing, specifically to an automotive parts roll forming device. Background Technology

[0002] Roll forming is a highly efficient metal forming process that uses a series of rollers to continuously bend and shape sheet or coil materials, producing profiles with various cross-sectional shapes.

[0003] Traditional processing equipment applies excessive force instantaneously during the rolling process, far exceeding the elastic deformation limit of the material, making it difficult to accurately control the bending angle and causing bending angle deviation. Utility Model Content

[0004] The present invention aims to provide a rolling processing device for automotive parts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A roll forming apparatus for automotive parts includes a base and a workpiece. The base is detachably connected to several mounting plates. The mounting plates are rotatably connected to a first roller group, a second roller group, and a third roller group. The first roller group, the second roller group, and the third roller group respectively cooperate with the workpiece. The first roller group is used to pre-bend both sides of the workpiece, and the second roller group and the third roller group are used to further bend the workpiece. The mounting plates are rotatably connected to a first forming roller and a second forming roller. The first forming roller and the second forming roller are respectively used to pre-bend the middle of the workpiece. The mounting plates are rotatably connected to a side pressure roller group, which is used to squeeze both sides of the workpiece.

[0007] Preferably, the mounting plate is rotatably connected to an extrusion roller assembly, which is used to extrude both sides of the workpiece.

[0008] Preferably, the first forming roller and the second forming roller have different sizes, with the second forming roller being smaller than the first forming roller.

[0009] Preferably, the mounting plate and the base are connected by a common threaded bolt.

[0010] Preferably, the first roller group, the second roller group, the third roller group, the first forming roller, the second forming roller, the side pressure roller group, and the extrusion roller group are all made of wear-resistant materials.

[0011] Preferably, the wear-resistant material is alloy steel.

[0012] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0013] (1) This solution uses a first roller group to pre-bend the two sides of the workpiece, a second roller group and a third roller group to further bend it, and a first forming roller and a second forming roller to pre-bend the middle of the workpiece, making the entire bending process more precise and achieving step-by-step, precise bending of the workpiece. Compared with the traditional method of excessive bending in one go, which easily leads to shape deviation, this step-by-step processing can more accurately control the bending angle and curvature of the workpiece, decompose the entire bending process, apply relatively small force each time, and distribute stress more evenly, thereby effectively reducing stress concentration. This effectively reduces defects such as wrinkles and cracks caused by stress concentration, improves its structural strength and stability, reduces the risk of failure during use, and improves the reliability and safety of the product. It also makes the shape of the processed automotive parts more in line with the design requirements, improving the dimensional accuracy and shape accuracy of the product. In addition, roll forming can achieve continuous production, reducing processing steps and processing time. When processing long strip parts of automobiles, this device can complete bending and forming in one go, improving the production efficiency of automotive parts and meeting the needs of large-scale automobile production.

[0014] (2) By setting up side pressure roller groups and extrusion roller groups, the workpiece can be extruded on both sides, which can further adjust the size of the workpiece, making its width and thickness more uniform and ensuring the dimensional stability of the parts. At the same time, this extrusion action helps to eliminate residual stress inside the workpiece, making the shape of the workpiece more regular and improving the overall quality of the product.

[0015] (3) By setting a first forming roller and a second forming roller, the larger first forming roller can first bend the middle of the workpiece in a larger range, laying the foundation for subsequent processing; the smaller second forming roller can make fine adjustments to the middle of the workpiece, making the bending of the workpiece more precise and further improving the processing accuracy.

[0016] (4) By setting fixing bolts, the roller group, forming roller, side pressure roller group and extrusion roller group on the mounting plate can be easily replaced or adjusted when processing automotive parts of different specifications and shapes. Only the corresponding mold or the position of the parts needs to be changed to adapt to new processing requirements. There is no need to redesign and manufacture the entire processing device, which greatly improves the versatility and flexibility of the device and reduces the equipment investment cost of enterprises.

[0017] (5) By using alloy steel, a wear-resistant material, which has high hardness and wear resistance, it can effectively resist the wear caused by friction with the workpiece during the rolling process, extend the service life of each component, reduce the maintenance and replacement costs of the equipment, and improve production efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of the workpiece provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first roller assembly provided by this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second roller assembly provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the third roller assembly provided by this utility model;

[0022] Figure 5 A schematic diagram of the overall structure of this utility model;

[0023] Reference numerals: 1. First roller group; 2. Workpiece; 3. Second roller group; 4. Third roller group; 5. First forming roller; 6. Second forming roller; 7. Side pressure roller group; 8. Extrusion roller group; 9. Base; 10. Mounting plate. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0025] like Figure 1-5The illustrated automotive parts roll forming apparatus includes a base 9 and a workpiece 2. The base 9 is detachably connected to several mounting plates 10. Each mounting plate 10 is rotatably connected to a first roller group 1, a second roller group 3, and a third roller group 4. These roller groups cooperate with the workpiece 2. The first roller group 1 is used to pre-bend both sides of the workpiece 2, laying the foundation for subsequent bending operations and guiding the workpiece 2 towards a predetermined shape. The second roller group 3 and the third roller group 4 are used to further bend the workpiece 2. Based on the pre-bending by the first roller group 1, the second roller group 3 further transitions the workpiece 2 towards a circular shape and stabilizes its shape. This helps eliminate potential instability factors after the pre-bending by the first roller group 1, bringing the workpiece 2 closer to the ideal circular state. When the workpiece 2 approaches a circular shape after the previous processing, the third roller group 4 gradually transitions the workpiece 2 from a circular shape to a square shape, completing the shape transformation from circular to square and meeting the square shape requirements of specific automotive parts. The mounting plate 10 is rotatably connected to a first forming roller 5 and a second forming roller 6. The first forming roller 5 and the second forming roller 6 are located behind the first roller group 1. The first forming roller 5 and the second forming roller 6 are used to pre-bend the middle of the workpiece 2, positioned in the gap before the workpiece 2 is closed, allowing for rapid and noticeable bending of the middle portion of the workpiece 2, thus improving forming efficiency. The mounting plate 10 is rotatably connected to several sets of side pressure rollers 7, located behind the second forming roller 6. The side pressure rollers 7 are used to press the upper and lower sides or the left and right sides of the workpiece 2, causing the workpiece 2 to gradually transition towards a circle. By applying pressure to both sides of the workpiece 2, the shape of the workpiece 2 is further adjusted, making the workpiece 2 closer to a circle.

[0026] like Figure 3 As shown, the mounting plate 10 is rotatably connected to several sets of extrusion rollers 8. The extrusion rollers 8 are located between the side pressure rollers 7 and the second roller group 3. The extrusion rollers 8 are used to extrude both sides of the workpiece 2. On the one hand, this gradually transitions the workpiece 2 towards a circular shape, and on the other hand, it stabilizes the shape of the workpiece 2. After the workpiece 2 has undergone the previous bending and partial extrusion operations, the extrusion rollers 8 can further solidify the shape of the workpiece 2, making it more stable and precise.

[0027] like Figure 2 As shown, the first forming roller 5 and the second forming roller 6 have different dimensions, with the second forming roller 6 being smaller than the first forming roller 5. The larger size of the first forming roller 5 allows for rapid and noticeable bending of the middle portion of the workpiece 2, effectively improving forming efficiency. In the near-circular stage, the smaller second forming roller 6 can make minor adjustments to the shape, ensuring the roundness and dimensional accuracy of the workpiece 2.

[0028] like Figure 5As shown, the mounting plate 10 and the base 9 are connected by several fixing bolts via a common thread. This allows for easy disassembly of the mounting plate 10 by loosening the fixing bolts when it is necessary to replace processed parts of different specifications or to maintain the device, thus improving the versatility and maintainability of the device. The first roller group 1, the second roller group 3, the third roller group 4, the first forming roller 5, the second forming roller 6, the side pressure roller group 7, and the extrusion roller group 8 are all made of wear-resistant materials. The wear-resistant material is alloy steel. Alloy steel has high hardness and wear resistance, enabling it to withstand the intense friction and pressure between the roller and the workpiece 2 during the roll forming process, reducing component wear, extending the service life of the device, lowering maintenance costs, and ensuring long-term stable operation of the device.

[0029] The specific implementation process is as follows:

[0030] In operation, workpiece 2 is placed on the device. First, the first roller group 1 pre-bends both sides of workpiece 2, laying the foundation for subsequent processing. Next, the first forming roller 5 and the second forming roller 6 quickly pre-bend the middle portion of workpiece 2. Then, the side pressure roller group 7 and the extrusion roller group 8 extrude pressure on both sides of workpiece 2, pushing it closer to a circle. Then, the second roller group 3 further bends workpiece 2, transitioning it towards a circle and stabilizing its shape. Finally, the third roller group 4 operates on workpiece 2, gradually transitioning it from a circle to a square, completing the entire processing.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A roller pressing device for automotive parts, characterized in that: The device includes a base (9) and a workpiece (2). The base (9) is detachably connected to several mounting plates (10). The mounting plates (10) are rotatably connected to a first roller group (1), a second roller group (3), and a third roller group (4). The first roller group (1), the second roller group (3), and the third roller group (4) cooperate with the workpiece (2). The first roller group (1) is used to pre-bend the two sides of the workpiece (2). The second roller group (3) and the third roller group (4) are used to further bend the workpiece (2). The mounting plates (10) are rotatably connected to a first forming roller (5) and a second forming roller (6). The first forming roller (5) and the second forming roller (6) are used to pre-bend the middle of the workpiece (2). The mounting plates (10) are rotatably connected to a side pressure roller group (7). The side pressure roller group (7) is used to squeeze the two sides of the workpiece (2).

2. The rolling processing device for automotive parts as described in claim 1, characterized in that: The mounting plate (10) is rotatably connected to an extrusion roller group (8), which is used to extrude both sides of the workpiece (2).

3. The rolling processing device for automotive parts as described in claim 1, characterized in that: The first forming roller (5) and the second forming roller (6) have different dimensions, with the second forming roller (6) being smaller than the first forming roller (5).

4. The rolling processing device for automotive parts as described in claim 1, characterized in that: The mounting plate (10) and the base (9) are connected by a common threaded bolt.

5. The rolling processing device for automotive parts as described in claim 1, characterized in that: The first roller group (1), the second roller group (3), the third roller group (4), the first forming roller (5), the second forming roller (6), the side pressure roller group (7), and the extrusion roller group (8) are all made of wear-resistant materials.

6. The rolling processing apparatus for automotive parts as described in claim 5, characterized in that: The wear-resistant material is alloy steel.

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