A rail rolling forming device for a vehicle
By introducing longitudinal and transverse positioning components into the automotive track rolling forming device, the problem of metal sheets popping out during the extrusion process was solved, achieving accurate positioning of the metal sheets and equipment adaptability, and improving the stability of the rolling process and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN JIANHAI PRECISION SECTION BAR DEV
- Filing Date
- 2025-05-25
- Publication Date
- 2026-06-02
AI Technical Summary
In existing automotive rail roll forming equipment, the feeding device lacks a fixed structure, which makes the metal sheet easy to pop out during the extrusion process, causing the risk of cold rolling failure and equipment damage.
An automotive track rolling forming device was designed, which includes a longitudinal positioning component and a transverse positioning component. The vertically symmetrical longitudinal positioning component and the horizontally symmetrical transverse positioning component ensure that the metal sheet is accurately positioned before entering the rolling component, preventing vertical and horizontal offset. The spacing between the upper and lower rolls is adjusted by an electric hydraulic cylinder to accommodate metal sheets of different thicknesses.
It improves the positioning accuracy of metal sheets during the rolling process, prevents deviation, enhances the flexibility and adaptability of the equipment, and improves product quality and equipment safety.
Smart Images

Figure CN224309274U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold bending production line technology, and specifically to an automotive rail roll forming device. Background Technology
[0002] The automotive rail roll forming machine is an automated piece of equipment in a precision cold bending production line. It uses multiple sets of rollers working in tandem to continuously and automatically process metal sheets or coils. During operation, the metal material enters from one end of the machine, and under precise control of parameters such as roller speed, spacing, and pressure, it gradually undergoes bending, stretching, and other deformation operations, ultimately forming a shape and size that meets the design requirements of automotive rails. The rolling process refines the internal structure of the metal, enhancing the material's strength, toughness, and other mechanical properties, improving the quality and service life of the automotive rails, and ensuring driving safety. Furthermore, the precise forming process makes full use of materials, reduces waste, and saves production costs. With its advantages of automation, high precision, and high efficiency, the automotive rail roll forming machine plays an indispensable role in automotive rail production, powerfully promoting the development of the automotive manufacturing industry.
[0003] According to the publicly available announcement (CN213887839U), a "cold bending forming machine roll die" is disclosed. This technology discloses a machine base, roll dies, and a sheet material feeding device. The machine base has multiple roll dies arranged along the direction the workpiece passes through. Each roll die includes two opposing roll frames, and an upper roll and a lower roll movably connected between the roll frames. A deformation layer exists between the upper and lower rolls. A sheet material feeding device is provided between adjacent roll dies. The sheet material feeding device includes two feeding plates. The working height of the feeding plates is consistent with the height of the deformation layer. The front side of the feeding plate is close to the output end of the previous deformation layer, and the rear side is close to the biting end of the next deformation layer. A torsional surface is formed between the front and rear sides. As the workpiece passes through the torsional surface from front to back into the next deformation layer, the pressure gradually increases. This avoids the situation where the metal sheet springs back after being rolled, causing collision damage between the sheet and the die when bitten into the next rolling pass.
[0004] However, the infeeding device in the above technical solution lacks a fixed structure. Since the metal sheet has a certain degree of elasticity, the infeeding device is prone to popping the metal sheet upward during the extrusion process. This not only easily causes the cold rolling of the metal sheet to fail, but also poses a certain danger and can easily damage the equipment.
[0005] To address the aforementioned problems, this application proposes an automotive track roll forming apparatus. Utility Model Content
[0006] This utility model addresses the technical problems existing in the prior art by providing an automotive track roll forming device.
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An automobile track rolling forming device includes a machine tool, a mounting frame is fixedly connected to the upper surface of the machine tool, a rolling assembly is installed inside the mounting frame, the rolling assembly includes an upper shell, an upper roll, a lower shell and a lower roll, the side surface of the upper shell is slidably connected to the mounting frame, the inside of the upper shell is rotatably connected to the upper roll, the side surface of the lower shell is fixedly connected to the mounting frame, and the inside of the lower shell is rotatably connected to the lower roll;
[0008] A connecting plate is fixedly connected to both the upper housing and the upper roller. A longitudinal positioning component is installed on the connecting plate. The longitudinal positioning component includes a receiving part and a first positioning wheel. An L-shaped plate is fixedly connected to the mounting frame. A transverse fixing component is installed inside the L-shaped plate. The transverse fixing component includes an electric telescopic rod, a U-shaped fixing part, and a second positioning wheel.
[0009] Preferably, one end of the receiving component is fixedly connected to the connecting plate, and the end of the receiving component away from the connecting plate is rotatably connected to the first positioning wheel. The vertically symmetrically arranged longitudinal positioning components ensure that the metal part is positioned vertically upon entry, thereby preventing vertical offset and swaying.
[0010] Preferably, one end of the electric telescopic rod is fixedly connected to the L-shaped plate, and the end of the electric telescopic rod away from the L-shaped plate is fixedly connected to the U-shaped fixing member. The interior of the U-shaped fixing member is rotatably connected to the second positioning wheel. The symmetrically arranged lateral fixing components position and correct the posture of the metal part upon entry, preventing horizontal displacement and swaying of the metal part.
[0011] Preferably, the mounting frame is equipped with an adjustment assembly, which includes a top plate and an electro-hydraulic cylinder. The upper surface of the mounting frame is fixedly connected to the top plate, the lower surface of the top plate is fixedly connected to the electro-hydraulic cylinder, and the lower end of the electro-hydraulic cylinder is fixedly connected to the upper housing. The distance between the upper and lower rollers is adjusted by extending or retracting the electro-hydraulic cylinder, thereby adapting to metal parts of different thicknesses.
[0012] Preferably, a motor is fixedly connected to the upper surface of the machine tool, and a first gear is fixedly connected to the output end of the motor. A second gear is meshed with the side surface of the first gear. The motor drives the first gear to rotate, and the first gear drives the second gear to rotate.
[0013] Preferably, the end of the first gear furthest from the motor is fixedly connected to a first coupling, and the end of the second gear is fixedly connected to a second coupling. The end of the first coupling furthest from the first gear is fixedly connected to the lower roll, and the end of the second coupling furthest from the second gear is fixedly connected to the upper roll. Through the transmission of the first and second gears, the upper and lower rolls rotate synchronously, thereby achieving the rolling of the metal part. The second coupling is a telescopic coupling so that its length and angle can be adjusted when the height of the upper roll is adjusted.
[0014] Preferably, the lower surface of the machine tool is fixedly connected to a rectangular array of support legs, and the lower end of each support leg is fixedly connected to a washer, the washer having an insertion hole inside. By setting the washer and the insertion hole, the equipment can be fixed simply by inserting a bolt into the insertion hole, thus facilitating the installation and fixation of the equipment.
[0015] The beneficial effects of this utility model are:
[0016] 1. An automotive track rolling forming apparatus, which, by setting a transverse positioning component and a longitudinal positioning component, positions the metal sheet before it enters the rolling assembly, thereby ensuring that it enters the rolling assembly in an accurate posture. Furthermore, the initial fixing by the positioning components prevents the metal sheet from shifting in either the horizontal or vertical direction, thus preventing the metal sheet from shifting during the rolling process and improving product quality.
[0017] 2. An automotive track rolling forming device, by setting an adjustment component, can roll metal plates of different thicknesses, thereby greatly improving the flexibility and functionality of the equipment. It can also link with the longitudinal positioning component, so that the longitudinal positioning component can also be adapted to metal plates of different thicknesses without repeated disassembly and assembly, thus improving the adaptability of the equipment. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;
[0020] Figure 3 This is a partial structural diagram of the present invention. Figure 2 ;
[0021] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Machine tool; 2. Mounting frame; 3. Upper housing; 4. Upper roll; 5. Lower housing; 6. Lower roll; 7. Connecting plate; 8. Receiving component; 9. Positioning wheel No. 1; 10. L-shaped plate; 11. Electric telescopic rod; 12. U-shaped fixing component; 13. Positioning wheel No. 2; 14. Top plate; 15. Electric hydraulic cylinder; 16. Motor; 17. Gear No. 1; 18. Gear No. 2; 19. Coupling No. 1; 20. Coupling No. 2; 21. Support leg; 22. Shim; 23. Insertion hole. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0026] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0027] Reference Figure 1-4An automotive track rolling forming apparatus includes a machine tool 1. A mounting frame 2 is fixedly connected to the upper surface of the machine tool 1. A rolling assembly is installed inside the mounting frame 2. The rolling assembly includes an upper housing 3, an upper roll 4, a lower housing 5, and a lower roll 6. The side surface of the upper housing 3 is slidably connected to the mounting frame 2, and the interior of the upper housing 3 is rotatably connected to the upper roll 4. The side surface of the lower housing 5 is fixedly connected to the mounting frame 2, and the interior of the lower housing 5 is rotatably connected to the lower roll 6. An adjustment assembly is installed on the mounting frame 2. The adjustment assembly includes a top plate 14 and an electric... The upper surface of the mounting bracket 2 is fixedly connected to the top plate 14, and the lower surface of the top plate 14 is fixedly connected to the electric hydraulic cylinder 15. The lower end of the electric hydraulic cylinder 15 is fixedly connected to the upper sleeve 3. The distance between the upper roller 4 and the lower roller 6 is adjusted by the extension or retraction of the electric hydraulic cylinder 15, thereby adapting to metal parts of different thicknesses. A motor 16 is fixedly connected to the upper surface of the machine tool 1. A first gear 17 is fixedly connected to the output end of the motor 16. A second gear 18 is meshed with the side surface of the first gear 17. Motor 16 drives gear 17 to rotate, which in turn drives gear 18 to rotate. A coupling 19 is fixedly connected to the end of gear 17 furthest from motor 16. A coupling 20 is fixedly connected to the end of gear 18. The end of coupling 19 furthest from gear 17 is fixedly connected to the lower roller 6, and the end of coupling 20 furthest from gear 18 is fixedly connected to the upper roller 4. Through the transmission between gears 17 and 18, the upper roller 4 and the lower roller 6 are connected. Synchronous rotation enables the rolling of metal parts. The second coupling 20 is a telescopic coupling so that the length and angle of the second coupling 20 can also be changed when the height of the upper roll 4 is adjusted. The lower surface of the machine tool 1 is fixedly connected with support legs 21 distributed in a rectangular array. The lower end of the support legs 21 is fixedly connected with a shim 22. The shim 22 has a socket 23 inside. By setting the shim 22 and the socket 23, the equipment can be fixed by simply inserting a bolt into the socket 23, which facilitates the installation and fixation of the equipment.
[0028] A connecting plate 7 is fixedly connected to both the upper casing 3 and the upper roller 4. A longitudinal positioning component is installed on the connecting plate 7. The longitudinal positioning component includes a receiving part 8 and a first positioning wheel 9. An L-shaped plate 10 is fixedly connected to the mounting frame 2. A transverse fixing component is installed inside the L-shaped plate 10. The transverse fixing component includes an electric telescopic rod 11, a U-shaped fixing part 12 and a second positioning wheel 13. One end of the receiving part 8 is fixedly connected to the connecting plate 7, and the end of the receiving part 8 away from the connecting plate 7 is rotatably connected to the first positioning wheel 9. Through the vertically and vertically symmetrically arranged longitudinal positioning components, the metal part is positioned vertically when it enters, thereby preventing vertical offset and shaking. One end of the electric telescopic rod 11 is fixedly connected to the L-shaped plate 10, and the end of the electric telescopic rod 11 away from the L-shaped plate 10 is fixedly connected to the U-shaped fixing part 12. The interior of the U-shaped fixing part 12 is rotatably connected to the second positioning wheel 13. Through the horizontally and vertically symmetrically arranged transverse fixing components, the posture of the metal part is positioned and corrected, so that the horizontal direction of the metal part does not offset or shake.
[0029] Working principle:
[0030] In use, the electric hydraulic cylinder 15 is activated according to the thickness of the metal part. The electric hydraulic cylinder 15 drives the upper sleeve 3 to rise and fall, thereby adjusting the distance between the upper roller 4 and the lower roller 6. The longitudinal positioning component also moves with the upper sleeve 3, so that the distance between the two No. 1 positioning wheels 9 is equal to the distance between the upper roller 4 and the lower roller 6, achieving longitudinal positioning. Then, the electric telescopic rod 11 is activated according to the width of the metal part. The electric telescopic rod 11 pushes the U-shaped fixing part 12 to drive the No. 2 positioning wheel 13 to move closer to each other until the two No. 2 positioning wheels 13 clamp the two sides of the metal part, achieving lateral positioning in the horizontal direction. Then, the metal part is inserted between the upper roller 4 and the lower roller 6. The motor 16 is activated. The motor 16 drives the No. 1 gear 17 to rotate, the No. 1 gear 17 drives the No. 2 gear 18 to rotate, and drives the No. 1 coupling 19 and the No. 2 coupling 20 to rotate, achieving synchronous rotation of the upper roller 4 and the lower roller 6, thus achieving the rolling of the metal part.
[0031] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An automotive track roll forming apparatus, comprising a machine tool (1), characterized in that, The upper surface of the machine tool (1) is fixedly connected to a mounting frame (2). A rolling assembly is installed inside the mounting frame (2). The rolling assembly includes an upper sleeve (3), an upper roll (4), a lower sleeve (5), and a lower roll (6). The side surface of the upper sleeve (3) is slidably connected to the mounting frame (2). The interior of the upper sleeve (3) is rotatably connected to the upper roll (4). The side surface of the lower sleeve (5) is fixedly connected to the mounting frame (2). The interior of the lower sleeve (5) is rotatably connected to the lower roll (6). A connecting plate (7) is fixedly connected to the upper shell (3) and the upper roller (4). A longitudinal positioning component is installed on the connecting plate (7). The longitudinal positioning component includes a receiving part (8) and a first positioning wheel (9). An L-shaped plate (10) is fixedly connected to the mounting frame (2). A transverse fixing component is installed inside the L-shaped plate (10). The transverse fixing component includes an electric telescopic rod (11), a U-shaped fixing part (12), and a second positioning wheel (13).
2. The automobile track roll forming apparatus according to claim 1, characterized in that, One end of the receiving part (8) is fixedly connected to the connecting plate (7), and the end of the receiving part (8) away from the connecting plate (7) is rotatably connected to the first positioning wheel (9).
3. The automobile track roll forming apparatus according to claim 1, characterized in that, One end of the electric telescopic rod (11) is fixedly connected to the L-shaped plate (10), and the end of the electric telescopic rod (11) away from the L-shaped plate (10) is fixedly connected to the U-shaped fixing member (12). The interior of the U-shaped fixing member (12) is rotatably connected to the second positioning wheel (13).
4. The automobile track roll forming apparatus according to claim 1, characterized in that, An adjustment assembly is installed on the mounting bracket (2). The adjustment assembly includes a top plate (14) and an electric hydraulic cylinder (15). The upper surface of the mounting bracket (2) is fixedly connected to the top plate (14), the lower surface of the top plate (14) is fixedly connected to the electric hydraulic cylinder (15), and the lower end of the electric hydraulic cylinder (15) is fixedly connected to the upper housing (3).
5. The automobile track roll forming apparatus according to claim 1, characterized in that, A motor (16) is fixedly connected to the upper surface of the machine tool (1), and a first gear (17) is fixedly connected to the output end of the motor (16). A second gear (18) is meshed with the side surface of the first gear (17).
6. The automobile track roll forming apparatus according to claim 5, characterized in that, The first gear (17) is fixedly connected to a first coupling (19) at the end away from the motor (16), and the second gear (18) is fixedly connected to a second coupling (20). The first coupling (19) is fixedly connected to the lower roller (6) at the end away from the first gear (17), and the second coupling (20) is fixedly connected to the upper roller (4) at the end away from the second gear (18).
7. The automobile track roll forming apparatus according to claim 1, characterized in that, The lower surface of the machine tool (1) is fixedly connected with support legs (21) arranged in a rectangular array. The lower end of the support legs (21) is fixedly connected with a pad (22), and the pad (22) has an insertion hole (23) inside.