A curling and bending integrated device for arc-shaped workpieces

Abstract

The present application relates to the field of workpiece deformation combined processing, in particular to a kind of integrated equipment of bending and curling for arc-shaped workpiece.It includes centering table, material moving manipulator, two bending workstations, side pushing mechanism and stacking device.Centering table is used to calibrate the initial position of workpiece, material moving manipulator is arranged at the side of centering table to drive workpiece to move, two bending workstations are arranged at the side of material moving manipulator away from centering table, bending workstation includes lower die and upper die, workpiece is bent at one bending workstation, and is curled at the other bending workstation.Two sides of bending workstation for curling are respectively provided with side pushing mechanism, side pushing mechanism includes slidingly arranged pusher, elastically arranged push head on pusher and arc-shaped block fixedly connected to push head, stacking device is arranged at the side of bending workstation for curling, and is used to stack shaped workpiece.The present application realizes bending and curling integrated processing for arc-shaped workpiece.

Description

Technical Field

[0001] This invention relates to the field of workpiece deformation combination processing, specifically to an integrated rolling and bending device for arc-shaped workpieces. Background Technology

[0002] In industries such as construction decoration, machinery manufacturing, and rail transportation, curved workpieces with folded edges are frequently required. These workpieces are typically manufactured from flat metal sheets through two processes: rolling and folding. Currently, the processing of these workpieces mainly relies on manual operation, with workers manually operating rolling machines to roll the metal and then manually operating bending machines to fold it. However, during manual rolling, the radius of curvature depends entirely on the worker's experience and feel, resulting in significant differences in rolling accuracy between different batches and even between different workpieces within the same batch, making it difficult to meet the requirements of high-precision assembly. Furthermore, manual processing requires a large number of skilled workers, leading to high labor costs, low production efficiency, and a significant impact on processing quality due to worker condition, making it difficult to meet the demands of modern large-scale, high-standard production.

[0003] In existing processing techniques, both the rolling-then-folding and folding-then-rolling sequences present insurmountable technical obstacles. If the rolling-then-folding sequence is used, the workpiece becomes a curved surface after rolling, making it difficult for traditional vacuum chucks or mechanical grippers to stably hold and hold the curved surface. This leads to difficulties in workpiece positioning during the folding process, compromising folding accuracy. Furthermore, manual handling and secondary clamping of the workpiece are required between the two processes, increasing labor input and increasing the risk of surface scratches or deformation during handling, affecting finished product quality. If the folding-then-rolling sequence is used, although the workpiece is flat and easy to position during folding, the resulting flange structure interferes with the rollers of the rolling machine. The rollers cannot properly roll the flanged workpiece, hindering the rolling process.

[0004] To address the aforementioned issues, those skilled in the art have attempted to automate existing processing equipment, such as designing specialized fixtures and molds to solve the processing problems of curved workpieces. However, such equipment requires non-standard design, resulting in excessively high costs. Therefore, it is necessary to design an integrated rolling and bending machine for curved workpieces to solve these problems. Summary of the Invention

[0005] Therefore, it is necessary to provide an integrated rolling and bending device for curved workpieces to address the existing technical problems.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows: An integrated rolling and bending device for curved workpieces, comprising: A centering platform is used to calibrate the initial position of the workpiece. A material transfer robot is set next to the centering platform to move the workpiece. Two bending worktables are set on the side of the material transfer robot away from the centering platform. The bending worktable includes a fixed lower die and an upper die that is slidably set above the lower die. The workpiece is folded at one bending worktable and rolled at the other bending worktable. The bending worktable for rolling is provided with side pushing mechanisms on both sides to push the workpiece to move horizontally. The side pushing mechanism includes a push seat that is slidably arranged next to the bending worktable, a push head that is elastically arranged on the side of the push seat close to the bending worktable, and an arc-shaped block that is fixedly connected to the side of the push head away from the push seat. A stacking device for stacking the processed workpieces is installed next to the bending worktable for rolling.

[0007] Furthermore, the lower end of the material handling robot is equipped with a translation device that drives it to make horizontal displacement.

[0008] Furthermore, the middle table includes an inclined table surface, with ball seats arranged in an equally spaced array at the upper end of the table surface, and the upper end of the ball seats not higher than the upper end of the table surface. Each ball joint has a universal ball that rotates coaxially in the center to support the workpiece.

[0009] Furthermore, the side edges of the table are fixed with side stops to prevent excessive movement of the workpiece.

[0010] Furthermore, a liquid cooling channel is provided in the middle of the lower die to provide a cooling source for the bending part of the workpiece; The upper end face of the lower mold is U-shaped, and the lower end face of the upper mold is n-shaped.

[0011] Furthermore, a sliding table is provided in the middle of the bending worktable via a hydraulic cylinder, and the sliding table is fixedly connected to the fixed end of the upper die. Furthermore, the side-pushing mechanism includes a pusher frame fixedly installed next to the bending workbench, and a rodless cylinder with its fixed end fixedly connected to the pusher frame is provided at the upper end of the pusher frame, and the moving end of the rodless cylinder is fixedly connected to the pusher seat.

[0012] Furthermore, a guide rod is fixedly connected to the side of the push head near the push base, and a linear bearing is coaxially mounted on the push head. The push head is slidably connected to the push base through the axial bearing. A spring is coaxially mounted on the outside of the guide rod. One end of the spring is fixed to the push head, and the other end is fixed to the push base.

[0013] The beneficial effects of this invention compared to the prior art are: Firstly, this device, by setting up a centering platform, a material transfer robot, two bending worktables, and a stacking device, realizes fully automated processing of workpieces from loading, positioning, folding, rolling to stacking. It eliminates the need for manual intervention in intermediate processes and workpiece turnover. Compared with the existing processing methods that rely on manual operation of plate rolling machines and bending machines, this device automatically completes the transfer of workpieces between workstations through the material transfer robot, ensures the initial positioning accuracy of the workpiece through the centering platform, and professionally completes the folding and rolling processes through the two bending worktables, which greatly reduces manual intervention, lowers labor costs, and avoids the accuracy fluctuations caused by manual operation. It keeps the folding angle and rolling radius of the workpiece highly consistent, significantly improving processing accuracy and production efficiency, and can meet the needs of modern large-scale continuous production. Secondly, this device completes the folding and rolling processes separately using two bending worktables. Side-pushing mechanisms on both sides of the rolling worktable push the workpiece in a step-by-step manner, allowing the workpiece to first undergo folding in a flat state on one bending worktable, and then be transferred to the other bending worktable. The side-pushing mechanism, in conjunction with the upper die, rolls and presses the workpiece step by step to complete the rolling process. In this process, the device adopts a folding-then-rolling sequence, avoiding the problem of difficulty in adhering and positioning the curved surface when rolling first and then folding. Furthermore, the rolling process uses a step-by-step rolling method on the upper die of the bending machine instead of the traditional rolling method, fundamentally avoiding mechanical interference between the folding structure and the rollers of the rolling machine. This solves the technical problem of contradictory process sequences in existing technologies, realizing continuous automated processing of curved workpieces with folded edges. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment; Figure 2 This is a three-dimensional structural diagram of the platform in the embodiment; Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the workpiece being rolled into a circle step by step; Figure 5 This is a side view of the bending workbench and the side pushing mechanism in the embodiment; Figure 6 This is a three-dimensional structural diagram of the side-push mechanism in the embodiment; Figure 7 yes Figure 6 Enlarged view of the structure at point C.

[0015] The numbers on the map are: 1. Centering platform; 2. Omnidirectional ball; 3. Ball seat; 4. Side stop block; 5. Table surface; 6. Material transfer robot; 7. Translation device; 8. Bending worktable; 9. Slide table; 10. Upper die; 11. Rodless cylinder; 12. Stacking device; 13. Lower die; 14. Side push mechanism; 15. Pusher frame; 16. Push head; 17. Arc block; 18. Push seat; 19. Linear bearing; 20. Guide rod; 21. Spring. Detailed Implementation

[0016] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0017] refer to Figures 1 to 7 An integrated rolling and bending device for curved workpieces, comprising: A centering platform 1 is used to calibrate the initial position of the workpiece. A material transfer robot 6 is set on the side of the centering platform 1 to move the workpiece. Two bending worktables 8 are set on the side of the material transfer robot 6 away from the centering platform 1. The bending worktable 8 includes a fixed lower die 13 and an upper die 10 slidably set above the lower die 13. The workpiece is folded at one bending worktable 8 and rolled at the other bending worktable 8. The bending worktable 8 for rolling is provided with side push mechanisms 14 on both sides to push the workpiece to move horizontally. The side push mechanism 14 includes a push seat 18 slidably disposed on the side of the bending worktable 8. A push head 16 is elastically disposed on the side of the push seat 18 close to the bending worktable 8. An arc block 17 is fixedly connected on the side of the push head 16 away from the push seat 18. A stacking device 12 for stacking the processed workpieces is provided on the side of the bending worktable 8 for rolling.

[0018] The working principle of this device is as follows: Before the rolling process, the operator manually places the laser-cut flat workpiece into the raw material position of the equipment. The transfer robot 6 picks up the workpiece from the raw material position and transfers it to the centering table 1. The centering table 1 calibrates the initial position of the workpiece, eliminating positional deviations caused during the loading process, aligning the reference edge of the workpiece with the preset processing reference, and ensuring consistent positioning accuracy for subsequent folding and rolling. After calibration, the transfer robot 6 picks up the workpiece and transfers it to the first bending worktable 8, placing the workpiece flat on the lower die 13 of the worktable. Subsequently, the upper die 10 of the worktable slides along the upper die 13 to the folding position and presses down to fold the edge of the workpiece, forming a folded edge structure with a preset angle. The upper end face of the lower die 13 is U-shaped, and the lower end face of the upper die 10 is n-shaped; the two work together to process the workpiece.

[0019] After the folding is completed, the upper die 10 moves upward and resets, and the material transfer robot 6 transfers the folded workpiece to the second bending worktable 8 (i.e. the worktable for rolling), and places it flat on the lower die 13 of the worktable, providing the blank with the folded edge for subsequent rolling processing.

[0020] After the workpiece is placed on the lower die 13 of the second bending worktable 8, the side-pushing mechanism 14 located on one side of the worktable begins to operate: the pusher 18 slides along the side of the bending worktable 8 towards the workpiece, and the pusher head 16 elastically abuts against the end face of the workpiece under the action of the elastic element, with the arc-shaped block 17 at the front end of the pusher head 16 in close contact with the end face of the workpiece. Since the pusher head 16 is elastically set on the pusher 18, it can provide a buffering force during the pushing process, avoiding rigid pushing that would cause the end face of the workpiece to be deformed by pressure. At the same time, it can adapt to the slight shape changes of the end face of the workpiece during the rolling process, ensuring that the arc-shaped block 17 always maintains surface contact with the end face of the workpiece rather than point contact during the pushing process.

[0021] Subsequently, the pusher 18 moves the workpiece forward in a step-by-step manner along the horizontal direction. After each preset step, it pauses, and the upper die 10 of the second bending worktable 8 slides to the rolling position and presses down, rolling the corresponding part of the workpiece to create a preset arc-shaped bending deformation. The upper die 10 then rises and lifts, while the pusher 18 continues to push forward the next step, and the upper die 10 presses down again to roll. This process of pushing one step, rolling one cut, pushing another step, and rolling one cut is repeated, gradually forming a continuous arc surface in the front half of the workpiece. It is important to note that the amount of rolling pressure in each cut is controlled within the allowable elastic deformation range of the material. By superimposing multiple small deformations, a large curvature arc is formed, avoiding cracking or wrinkling of the workpiece caused by a single large deformation.

[0022] After the first half of the arc is rolled out, the pusher 18 of the side-pushing mechanism 14 retracts to its initial position. The side-pushing mechanism 14 on the other side of the bending worktable 8 is activated, elastically abutting the workpiece end face from the opposite direction in the same manner, and pushing the workpiece in a step-by-step reverse direction. During the reverse pushing process, the upper die 10 also rolls the second half of the workpiece one cut at a time, so that the second half also forms a continuous arc surface. By adopting the method of symmetrical rolling from both ends to the middle, on the one hand, the center of gravity of the workpiece is always kept within the support range of the worktable during the processing, avoiding the center of gravity shift and positioning inaccuracy caused by unidirectional rolling; on the other hand, the bending and springback trends on both sides are symmetrically distributed, which can offset some of the residual stress and improve the forming accuracy of the final arc. After both the first half and the second half are rolled out, the middle connecting position of the workpiece is pushed to the bottom of the upper die 10. The upper die 10 presses down for final shaping, eliminating any creases or steps that may exist at the connection between the two arcs, making the entire arc transition smoothly, and the workpiece is finally formed into an arc-shaped workpiece with a preset curvature.

[0023] After the workpiece is rolled and shaped, the stacking device 12 moves above the lower mold 13, moving the workpiece to the stacking position and stacking it neatly layer by layer according to a preset arrangement. During stacking, adjacent workpieces are nested or staggered with each other through folded edge structures to ensure stacking stability and prevent workpieces from slipping. When the number of workpieces on the stacking device 12 reaches a preset value, the automated handling equipment transfers the entire stack of workpieces to the next process. Thus, the complete processing cycle for a single workpiece, from flatbed loading, positioning and calibration, folding processing, bidirectional stepping rolling and rounding to automatic unloading and stacking, is completed. The equipment then enters the processing cycle for the next workpiece, achieving continuous automated production.

[0024] like Figure 1 As shown, the lower end of the material handling robot 6 is equipped with a translation device 7 that drives it to move horizontally. By setting the translation device 7, the material handling robot 6 can automatically switch positions between the centering table 1, the first bending table 8, and the second bending table 8, realizing automated transfer of workpieces between multiple workstations without manual handling. The travel distance of the translation device 7 covers the distance from the centering table 1 to the furthest bending table 8. Limit blocks and buffers are also set at both ends of the translation device 7 to prevent the material handling robot 6 from exceeding its travel range.

[0025] like Figure 2 and Figure 3 As shown, the middle platform 1 includes an inclined platform 5, and ball seats 3 are arranged in an equally spaced array on the upper end of the platform 5. The upper end surface of the ball seats 3 is not higher than the upper end surface of the platform 5. Each ball seat 3 has a universal ball 2 rotatably mounted on the center axis for loading the workpiece.

[0026] The inclined platform 5 allows workpieces placed on it to slide automatically along the inclined direction under the influence of gravity. Ball seats 3 are evenly spaced on the upper end of the platform 5, and are bolted to it. The upper surface of the ball seats 3 is not higher than the upper surface of the platform 5 to prevent them from protruding and obstructing the workpiece's sliding. A universal ball 2 for supporting the workpiece is coaxially mounted in the center of each ball seat 3. The top of the universal ball 2 protrudes a certain height from the upper end of the platform 5, ensuring that the workpiece is supported by the universal ball 2 rather than directly contacting the platform 5, thus significantly reducing frictional resistance during sliding. The universal ball 2 is made of stainless steel with a polished surface, allowing it to rotate freely within the ball seat 3. Regardless of the direction the workpiece slides, the universal ball 2 rolls accordingly, achieving low-resistance movement. Through the design of the inclined platform 5 and the universal ball 2, after the workpiece is placed on the centering platform 1, it automatically slides down the inclined direction under gravity until its reference edge abuts against the positioning component, thus achieving automatic centering and positioning of the workpiece.

[0027] like Figure 3As shown, a side stop 4 is fixed to the side edge of the platform 5 to prevent excessive movement of the workpiece. When the workpiece slides down the inclined platform 5 under the action of gravity, the front edge of the workpiece eventually abuts against the stop surface of the side stop 4, thereby stopping the sliding and achieving the positioning of the workpiece in the inclined direction. The stop surface of the side stop 4 has been hardened and has high hardness, which can withstand repeated impacts from the workpiece without easily deforming.

[0028] It is important to note that because this device requires multiple processing steps on the workpiece—specifically, during bending and rolling—the upper die 10 presses down, causing plastic deformation. This deformation generates significant heat, leading to increased temperatures in both the workpiece and the die. This temperature rise not only accelerates die wear and shortens its lifespan but also inflicts thermal stress on the workpiece, affecting molding accuracy. By incorporating a liquid cooling channel in the lower die 13, the coolant continuously absorbs heat from both the lower die 13 and the workpiece during circulation, keeping the temperature of the deformation area within a reasonable range and thus achieving cooling.

[0029] like Figure 1 , Figure 6 and Figure 7 As shown, the side pushing mechanism 14 includes a pusher frame 15 fixedly installed on the side of the bending workbench 8. A rodless cylinder 11 with its fixed end fixedly connected to the pusher frame 15 is provided on the upper end of the pusher frame 15. The moving end of the rodless cylinder 11 is fixedly connected to the pusher seat 18.

[0030] The moving end of the rodless cylinder 11 slides directly on the cylinder body, eliminating the need for a long piston rod. Therefore, for the same stroke, the overall length of the rodless cylinder 11 is shorter, occupying less space and making the equipment structure more compact. Simultaneously, the moving end of the rodless cylinder 11 slides along the cylinder body guide rail, resulting in better linearity and stability of movement and higher pushing accuracy. The pushing speed of the rodless cylinder 11 can be adjusted via a speed control valve to adapt to the pushing requirements of workpieces of different thicknesses and materials. Multiple position detection switches can also be installed on the pusher frame 15 to detect the current position of the pusher 18, achieving origin positioning and stroke limit of the pusher 18, ensuring the accuracy of the pushing step distance.

[0031] like Figure 7 As shown, a guide rod 20 is fixedly connected to the side of the push head 16 near the push base 18, and a linear bearing 19 is coaxially arranged on the push head 16. The push head 16 is slidably connected to the push base 18 through the axial bearing. A spring 21 is coaxially mounted on the outside of the guide rod 20. One end of the spring 21 is fixedly connected to the push head 16, and the other end is fixedly connected to the push seat 18.

[0032] When the pusher 18 moves the pusher head 16 closer to the workpiece, the arc-shaped block 17 first contacts the workpiece end face. As the pusher 18 continues to move closer, the spring 21 is further compressed, and the pusher head 16 retracts relative to the pusher 18, thus forming an elastic buffer between the pusher head 16 and the workpiece, preventing rigid contact from causing the workpiece end face to be deformed by pressure. During the rolling process, the workpiece end face will undergo slight shape changes and displacements due to bending deformation. The elastic force of the spring 21 can push the pusher head 16 to maintain close contact with the workpiece end face. At the same time, the cooperation of the guide rod 20 and the linear bearing 19 ensures the directionality of the pusher head 16's sliding, so that the pushing force is always transmitted in the horizontal direction without deviation. The stiffness of the spring 21 is selected according to the material and thickness of the workpiece, ensuring sufficient pushing force to move the workpiece while avoiding excessive elastic force that could damage the workpiece. Through this elastic pushing structure, both the reliability of the pushing is ensured and the workpiece end face is protected from damage.

[0033] The detailed working principle of this device is as follows: A person manually places the laser-cut flat workpiece into the raw material position of the equipment. The translation device 7 drives the transfer robot 6 to move above the raw material position. The transfer robot 6 picks up the workpiece from the raw material position and transfers it to the centering table 1. The table surface 5 of the centering table 1 is inclined, and an array of universal balls 2 are arranged on the table surface 5. After the workpiece is placed, it is supported by the universal balls 2 and automatically slides down the inclined table surface 5 under the action of gravity until the reference edge of the workpiece abuts against the side stop 4 on the side edge of the table surface 5, completing automatic centering and positioning, eliminating positional deviations generated during the loading process. After calibration, the transfer robot 6 picks up the workpiece and, driven by the translation device 7, moves it to the first bending worktable 8, placing the workpiece flat on the lower die 13 of this worktable. The hydraulic cylinder of this worktable drives the slide 9 to slide down, causing the upper die 10 to press down, performing edge bending processing on the edge of the workpiece, so that the edge of the workpiece forms a bent edge structure at a preset angle. During the bending process, the coolant circulating in the liquid cooling channel in the middle of the lower die 13 continuously absorbs the heat from the deformation area, controlling the temperature of the workpiece and the die. After the bending is completed, the upper die 10 moves upward to reset, and the material transfer robot 6 transfers the bent workpiece to the second bending worktable 8, placing it flat on the lower die 13 of the worktable.

[0034] After the workpiece is placed on the lower die 13 of the second bending worktable 8, the side push mechanism 14 located on one side of the worktable begins to operate: the rodless cylinder 11 drives the pusher 18 to slide closer to the workpiece, and the pusher head 16 is slidably connected to the pusher 18 through the guide rod 20 and the linear bearing 19. Under the elastic force of the spring 21, the arc-shaped block 17 at the front end of the pusher head 16 elastically abuts against the end face of the workpiece. Subsequently, the rodless cylinder 11 drives the pusher 18 to push forward in steps, pausing after each preset step distance. The hydraulic cylinder of the second bending worktable 8 drives the upper die 10 to press down, and the lower end of the upper die 10 gradually contacts the workpiece from the entrance side, causing the workpiece to gradually bend until it is rolled out into an arc of a preset curvature (refer to the workpiece deformation process here). Figure 4As shown, Figure 4 (The bending process of the workpiece is shown from top to bottom). The upper die 10 then rises and lifts, while the pusher 18 continues to push forward the next step distance. The upper die 10 then presses down again to roll the workpiece. This cycle repeats, gradually forming a continuous arc surface in the first half of the workpiece. After the first half is rolled out, the side pusher 14 retracts, and the other side pusher 14 is activated, elastically abutting the end face of the workpiece from the opposite direction and pushing it in a step-by-step reverse direction. The upper die 10 rolls the second half of the workpiece with each pass. During the reverse push, the workpiece moves in the opposite direction under the upper die 10 to ensure consistent rolling quality in both directions. After both halves are completed, the middle joint is pushed under the upper die 10 for final shaping, eliminating creases at the joint and making the entire arc smooth.

[0035] After the workpiece is rolled into a circle, the stacking device 12 moves to the upper end of the lower mold 13 to remove the workpiece from the lower mold 13. Then, the workpiece is stacked neatly layer by layer by the stacking device 12. When the number of stacks reaches the preset value, it is transferred by automated equipment, and the equipment enters the next processing cycle to realize continuous automated production.

[0036] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An integrated rolling and bending device for arc-shaped workpieces, characterized in that, include: A centering platform (1) is used to calibrate the initial position of the workpiece. A transfer robot (6) is provided on the side of the centering platform (1) to move the workpiece. Two bending worktables (8) are provided on the side of the transfer robot (6) away from the centering platform (1). The bending worktable (8) includes a fixed lower die (13) and an upper die (10) slidably set above the lower die (13). The workpiece is folded at one bending worktable (8) and rolled at the other bending worktable (8). The bending worktable (8) for rolling is provided with side push mechanisms (14) on both sides for pushing the workpiece to move horizontally. The side push mechanism (14) includes a push seat (18) slidably disposed on the side of the bending worktable (8). A push head (16) is elastically disposed on the side of the push seat (18) close to the bending worktable (8). An arc block (17) is fixedly connected on the side of the push head (16) away from the push seat (18). A stacking device 12 for stacking the processed workpieces is provided on the side of the bending worktable (8) for rolling.

2. The integrated rolling and bending equipment for arc-shaped workpieces according to claim 1, characterized in that, The lower end of the material handling robot (6) is equipped with a translation device (7) that drives it to make horizontal displacement.

3. The integrated rolling and bending equipment for arc-shaped workpieces according to claim 1, characterized in that, The middle platform (1) includes an inclined table surface (5), and ball seats (3) are arranged in an equally spaced array on the upper end of the table surface (5). The upper end of the ball seats (3) is not higher than the upper end of the table surface (5). Each ball seat (3) has a universal ball (2) that is coaxially rotatable in the middle for loading the workpiece.

4. The integrated rolling and bending equipment for arc-shaped workpieces according to claim 3, characterized in that, The side edge of the table (5) is fixed with a side stop (4) to prevent the workpiece from moving excessively.

5. The integrated rolling and bending equipment for arc-shaped workpieces according to claim 1, characterized in that, The lower die (13) has a liquid cooling channel in the middle to provide a cooling source for the bending part of the workpiece; The upper end face of the lower mold (13) is U-shaped, and the lower end face of the upper mold (10) is n-shaped.

6. The integrated rolling and bending equipment for arc-shaped workpieces according to claim 1, characterized in that, A slide (9) is provided in the middle of the bending worktable (8) via a hydraulic cylinder. The slide (9) is fixedly connected to the fixed end of the upper mold (10).

7. The integrated rolling and bending equipment for arc-shaped workpieces according to claim 1, characterized in that, The side push mechanism (14) includes a pusher frame (15) fixedly installed on the side of the bending workbench (8). The upper end of the pusher frame (15) is provided with a rodless cylinder (11) whose fixed end is fixedly connected to the pusher frame (15). The moving end of the rodless cylinder (11) is fixedly connected to the push seat (18).

8. The integrated rolling and bending equipment for arc-shaped workpieces according to claim 7, characterized in that, A guide rod (20) is fixedly connected to the side of the push head (16) near the push base (18). A linear bearing (19) is provided on the same axis as the push head (16). The push head (16) is slidably connected to the push base (18) through the axial bearing. A spring (21) is provided on the outer coaxial axis of the guide rod (20). One end of the spring (21) is fixedly connected to the push head (16), and the other end is fixedly connected to the push seat (18).

Images