Multi-angle adjustment processing copper material bending machine and using method thereof

Abstract

The present application relates to copper workpiece production tooling technical field, specifically relates to a kind of multi-angle adjusting processing copper bending machine and its using method, bending roller is arranged in the side of rack, workbench mechanism is arranged on rack, bending drive mechanism is arranged on rack;It is realized by being set as the bending of copper workpiece by the way of extrusion and processing to the die structure of support and setting the bending roller structure cooperating with die, and adjustable structure is set to processing tooling, so as to realize the adjustment for different processing requirements.

Description

Technical Field

[0001] This invention relates to the field of tooling technology for copper workpiece production, specifically to a multi-angle adjustable copper bending machine and its usage method. Background Technology

[0002] When copper workpieces are bent during production, copper, being relatively soft, can be cold-worked by extrusion. Existing technology uses a fixed bending structure for the tooling, adjusting the initial position of the workpiece to achieve different bending effects. This method requires precise workpiece positioning, making operation complex. Therefore, a multi-angle adjustable bending device is needed to achieve different bending processes by calibrating and adjusting the equipment. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a multi-angle adjustable copper bending machine and its usage method. This machine utilizes a mold structure as a support and a bending roller structure that cooperates with the mold to achieve bending of copper workpieces through extrusion. Furthermore, the processing fixture is equipped with an adjustable structure to allow for adjustments to meet different processing requirements.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] It includes a frame, bending rollers, wherein the bending rollers are disposed on the side of the frame, and also includes:

[0006] A worktable mechanism, wherein the worktable mechanism is mounted on the machine frame;

[0007] A bending drive mechanism is mounted on a frame;

[0008] In use, the workpiece is placed on the worktable mechanism, so that the bending rollers press against the surface of the workpiece. Then, the bending drive mechanism drives the bending rollers to rotate, and the worktable mechanism provides shape support for the workpiece. The bending rollers then perform bending processing on the workpiece.

[0009] Preferably, the workbench mechanism comprises:

[0010] The support platform is fixedly mounted on the frame, and has a cylindrical cavity that extends through the front and back.

[0011] A shaping mold, wherein the shaping mold is fitted onto a support platform;

[0012] A locking component is provided on the frame and is configured to cooperate with the forming mold.

[0013] In use, the forming mold is customized according to the different parameters of the radius of the workpiece to be bent, and is installed on the support table. The forming mold supports the workpiece and realizes the bending process of the workpiece.

[0014] Preferably, the locking element comprises:

[0015] The limiting seat is movably disposed inside, and the upper and lower side walls of the limiting seat abut against the upper and lower inner walls of the forming mold, respectively.

[0016] The limiting block is two symmetrically arranged upper and lower. A limiting groove is opened on the side wall of the limiting seat. The limiting block is slidably arranged in the limiting groove. A slot is opened on the inner wall of the forming mold. One end of the limiting block extending out of the limiting groove is movably inserted into the slot.

[0017] The limiting threaded rod is threadedly inserted into the end plate of the frame, and the end of the limiting threaded rod is inserted between two limiting blocks. The limiting blocks are wedge-shaped at one end of the limiting threaded rod.

[0018] Preferably, a tension spring is fixedly provided on the inner end wall of the limiting groove, and the other end of the tension spring is fixedly provided on the limiting block;

[0019] In use, after the shaping mold is clamped on the support table, the limiting seat is slidably inserted into the shaping mold, and the shaping mold and the limiting seat hold the support table. Then, the limiting threaded rod is rotated to insert it into the limiting groove on the limiting seat. The limiting threaded rod then pushes the limiting block to slide, pushing the limiting block into the slot, thus locking the limiting seat and the shaping mold.

[0020] Preferably, a positioning groove is provided on the side wall of the support platform, and positioning blocks are integrally formed on the inner wall of the forming mold and the side wall of the limiting seat, and the positioning blocks are movably locked in the positioning groove.

[0021] Preferably, the bending drive mechanism comprises:

[0022] The drive shaft is spun onto the frame via bearings and is movably inserted into the support platform through the cylindrical cavity of the support platform.

[0023] A drive motor is fixedly mounted on the frame, and the output shaft of the drive motor is connected to the drive shaft for transmission.

[0024] A rotating frame, which is fixedly mounted on the drive shaft and mounted outside the frame;

[0025] An adjusting element is mounted on a rotating frame.

[0026] Preferably, the adjusting member comprises:

[0027] A lifting frame, wherein the lifting frame is movably mounted on a rotating frame;

[0028] A lifting hydraulic rod is fixedly mounted on the top plate of the rotating frame, and the output shaft of the lifting hydraulic rod is fixedly mounted on the top plate of the lifting frame.

[0029] The mounting frame is slidably disposed inside the lifting frame, and the bending roller is spun onto the mounting frame via bearings.

[0030] A gear shifting component is mounted on the lifting frame and is configured to cooperate with the mounting frame.

[0031] In use, the drive motor drives the drive shaft to rotate, the drive shaft drives the rotating frame to rotate, the rotating frame drives the lifting frame and the mounting frame to rotate, and then the mounting frame drives the bending roller to rotate around the drive shaft as the axis, thereby extruding and bending the workpiece through the bending roller.

[0032] Preferably, the shifting component comprises:

[0033] The shift lever is screwed onto the mounting bracket via a bearing. The end plate of the lifting frame has a threaded hole, and the shift lever is movably inserted into the threaded hole.

[0034] The positioning seat is fixedly mounted on the end plate of the lifting frame;

[0035] A positioning rod is inserted into a positioning seat, and a positioning hole is provided on the shift lever, through which the positioning rod passes.

[0036] The fine-tuning threaded rod is integrally formed on the shift lever and is configured to cooperate with the threaded hole.

[0037] Preferably, the mounting frame is provided with a support roller, a support shaft is movably inserted through the support roller, a support hole is opened on the side plate of the mounting frame, the support roller is movably inserted through the support hole, and a nut is screwed onto the end of the support shaft away from the end cap.

[0038] In use, after the workpiece is bent once by the bending roller, the rotating frame is reset to move the bending roller and support roller to the upper and lower sides of the workpiece respectively. Then, the positioning rod is pulled out from the shift rod, and the mounting frame is moved by the shift rod, so that the fine-tuning thread rod is connected with the threaded hole. Then, the shift rod is rotated to move the fine-tuning thread rod in the threaded hole, thereby moving the mounting frame to fine-tune the position of the bending roller. Then, the lifting hydraulic rod is pushed to the left to slide the lifting frame, so that the lifting frame moves the mounting frame to the left, so that the workpiece is clamped between the bending roller and the support roller, and the workpiece is squeezed and shaped twice by the bending roller and the support roller.

[0039] The working principle of this invention is as follows: the shaping mold is placed on the support platform from the right side, then the limiting seat is inserted into the shaping mold so that the limiting seat and the shaping mold are held outside the support platform. Then the limiting threaded rod is rotated, and the limiting threaded rod is inserted between the two limiting blocks in the limiting seat and pushes the limiting blocks to slide into the slot, thereby locking the limiting seat and the shaping mold by the limiting blocks.

[0040] Move the shift lever to disengage the fine-tuning threaded rod from the threaded hole, then push the shift lever to align the positioning hole with the positioning seat, insert the positioning rod into the positioning hole to lock the shift lever, at this time the shift lever pushes the mounting bracket to move within the lifting seat, causing the mounting bracket to drive the bending roller to move, causing the center of the bending roller to move to the extended line of the radius of the support platform;

[0041] The workpiece is placed on the forming mold, and then the workpiece is clamped between the forming mold and the bending roller, with the support roller abutting against the surface of the workpiece. Then, the drive motor drives the drive shaft to rotate, the drive shaft drives the rotating frame to rotate, the rotating frame drives the lifting frame and the mounting frame to rotate, that is, drives the bending roller and the support roller to rotate. With the support shaft as the center, the rotating frame rotates 180°, realizing the 180° bending process of the workpiece with the forming mold as support.

[0042] After bending the workpiece, the rotating frame is rotated 90° in the reverse direction. Then, the positioning rod is pulled out, and the mounting frame is moved by the shift lever, causing the shift lever to move and align with the threaded hole. Then, by rotating the shift lever and moving the fine-tuning threaded rod, the position of the mounting frame is finely adjusted. Next, the position of the support roller is adjusted according to the diameter of the workpiece bending angle. After the support roller is moved to the correct position, the support shaft is inserted into the support hole on the mounting frame after passing through the support roller, and a nut is screwed on the support shaft to lock it. At this time, the bending roller and the support roller are respectively placed on the upper and lower sides of the bent workpiece. Then, the lifting frame is moved by the lifting hydraulic rod, that is, the bending roller and the support roller are used to perform secondary flattening and finishing of the plate material on the upper and lower sides of the workpiece bending angle.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] It achieves bending of copper workpieces by extrusion through a mold structure that serves as a support and a bending roller structure that cooperates with the mold. Furthermore, the processing fixture is equipped with an adjustable structure to allow for adjustment to meet different processing requirements. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the present invention.

[0046] Figure 2 yes Figure 1 The lower left side of the diagram.

[0047] Figure 3 yes Figure 1 The diagram shows the back side view.

[0048] Figure 4 yes Figure 1 A schematic diagram of the disassembled structure.

[0049] Figure 5 This is a schematic diagram of the structure of the support platform, the shaping mold, and the limiting seat in this invention.

[0050] Figure 6 This is a structural schematic diagram of the rotating frame and lifting frame in this invention.

[0051] Figure 7 This is a structural schematic diagram of the lifting frame and mounting frame in this invention.

[0052] Figure 8 This is a schematic diagram of the structure of the mounting frame, bending roller, and support roller in this invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Frame; 2. Bending roller; 3. Worktable mechanism; 3. Support platform; 3-1. Shaping mold; 3-2. Bending drive mechanism; 4. Drive shaft; 4-1. Drive motor; 4-2. Rotating frame; 4-3. Locking component; 5. Limit seat; 5-1. Limit block; 5-2. Limit groove; 5-3. Slot; 5-4. Limit threaded rod; 5-5. Adjusting component; 6. Lifting frame; 6-1. Lifting hydraulic rod; 6-2. Mounting frame; 6-3. Gear shifting component; 7. Gear shifting rod; 7-1. Positioning seat; 7-2. Positioning rod; 7-3. Positioning hole; 7-4. Fine-tuning threaded rod; 7-5. Threaded hole; 7-6. Tension spring; 8. Positioning groove; 9. Positioning block; 10. Support roller; 11. Support shaft; 12. Support hole; 13. Implementation

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Example 1

[0057] like Figure 1-8 As shown, this embodiment includes a frame 1 and a bending roller 2, wherein the bending roller 2 is disposed on the side of the frame 1, and it further includes:

[0058] Workbench mechanism 3, wherein the workbench mechanism is mounted on the frame 1;

[0059] Bending drive mechanism 4, which is mounted on frame 1;

[0060] The workbench mechanism 3 includes:

[0061] Support platform 3-1, the support platform 3-1 is fixedly mounted on the frame 1, and the support platform 3-1 has a cylindrical cavity that runs through the front and back.

[0062] The shaping mold 3-2 is sleeved on the support platform;

[0063] Locking component 5 is provided on the frame 1 and is configured to cooperate with the forming mold 3-2;

[0064] The locking member 5 includes:

[0065] The limiting seat 5-1 is movably disposed inside, and the upper and lower side walls of the limiting seat 5-1 abut against the upper and lower inner walls of the forming mold 3-2 respectively.

[0066] The limiting block 5-2 is a pair of symmetrically arranged upper and lower blocks. The limiting seat 5-1 has a limiting groove 5-3 on its side wall. The limiting block 5-2 is slidably disposed in the limiting groove 5-3. The forming mold 3-2 has a slot 5-4 on its inner wall. One end of the limiting block 5-2 extending out of the limiting groove 5-3 is movably inserted into the slot 5-4.

[0067] The limiting threaded rod 5-5 is threadedly inserted onto the end plate of the frame 1, and the end of the limiting threaded rod 5-5 is inserted between the upper and lower limiting blocks 5-2. The limiting block 5-2 is set as a wedge at one end of the limiting threaded rod 5-5.

[0068] The tension spring 8 is fixedly mounted on the limiting block 5-2, and the other end of the tension spring 8 is fixedly mounted on the inner end wall of the limiting groove 5-3.

[0069] Positioning blocks 10 are integrally formed on the inner wall of the forming mold 3-2 and the side wall of the limiting seat 5-1. Positioning grooves 9 are provided on the side wall of the support platform 3-1. When the forming mold 3-2 and the limiting seat 5-1 hold the support sleeve, the positioning blocks 10 on both are respectively locked in the two positioning grooves 9 on the support platform 3-1, thereby limiting and locking the support platform 3-1 with the forming mold 3-2 and the limiting seat 5-1, preventing the forming mold 3-2 from rotating on the support platform 3-1.

[0070] The bending drive mechanism 4 includes:

[0071] The drive shaft 4-1 is spun onto the frame 1 via bearings, and the drive shaft 4-1 is movably inserted into the support platform 3-1 through the cylindrical cavity of the support platform 3-1.

[0072] The drive motor 4-2 is fixedly mounted on the frame 1, and the output shaft of the drive motor 4-2 is connected to the drive shaft 4-1 in a transmission manner.

[0073] The rotating frame 4-3 is fixedly mounted on the drive shaft 4-1 and is mounted on the outside of the frame 1.

[0074] Adjusting component 6 is disposed on the rotating frame 4-3;

[0075] The adjusting member 6 includes:

[0076] The lifting frame 6-1 is movably sleeved on the rotating frame 4-3;

[0077] The lifting hydraulic rod 6-2 is fixedly mounted on the top plate of the rotating frame 4-3, and the output shaft of the lifting hydraulic rod is fixedly mounted on the top plate of the lifting frame 6-1.

[0078] Mounting frame 6-3 is slidably disposed inside lifting frame 6-1, and bending roller 2 is spun onto mounting frame 6-3 via bearing;

[0079] The shifting component 7 is mounted on the lifting frame 6-1 and is configured to cooperate with the mounting frame 6-3.

[0080] The shifter 7 includes:

[0081] The shift lever 7-1 is screwed onto the mounting bracket 6-3 via a bearing. The end plate of the lifting bracket 6-1 has a threaded hole 7-6, and the shift lever 7-1 is movably inserted into the threaded hole 7-6.

[0082] Positioning seat 7-2, wherein the positioning seat 7-2 is fixedly mounted on the end plate of the lifting frame 6-1;

[0083] The positioning rod 7-3 is inserted through the positioning seat 7-2. The shift lever 7-1 has a positioning hole 7-4, and the positioning rod 7-3 is inserted through the positioning hole 7-4.

[0084] The fine-tuning threaded rod 7-5 is integrally formed on the shift lever 7-1, and the fine-tuning threaded rod 7-5 is configured to cooperate with the threaded hole 7-6;

[0085] The support roller 11 is disposed at one end of the mounting frame 6-3 away from the bending roller 2;

[0086] The support shaft 12 passes through the support roller 11. Several support holes 13 are equally spaced from left to right on the side plate of the mounting frame 6-3. The support shaft 12 passes through one set of support holes 13. A nut is screwed onto the end of the support shaft 12 away from the end cap.

[0087] By adopting the technical solution disclosed in this invention, the following can be achieved:

[0088] When using this device, the shaping mold 3-2 is placed on the support platform 3-1 from the right side. Then, the limiting seat 5-1 is inserted into the shaping mold 3-2, so that the limiting seat 5-1 and the shaping mold 3-2 are held outside the support platform 3-1. Then, the limiting threaded rod 5-5 is rotated, and the limiting threaded rod 5-5 is inserted between the two limiting blocks 5-2 in the limiting seat 5-1 and pushes the limiting blocks 5-2 to slide into the slot 5-4, thereby locking the limiting seat 5-1 and the shaping mold 3-2 by the limiting blocks 5-2.

[0089] Move the shift lever 7-1 so that the fine-tuning threaded rod 7-5 disengages from the threaded hole 7-6. Then push the shift lever 7-1 so that the positioning hole 7-4 aligns with the positioning seat 7-2. Insert the positioning rod 7-3 into the positioning hole 7-4 to lock the shift lever 7-1. At this time, the shift lever 7-1 pushes the mounting bracket 6-3 to move within the lifting seat, causing the mounting bracket to move the bending roller 2, so that the center of the bending roller 2 moves to the extended line of the radius of the support platform 3-1.

[0090] The workpiece is placed on the forming mold 3-2, and then the workpiece is clamped between the forming mold 3-2 and the bending roller 2, with the support roller 11 abutting against the surface of the workpiece. Then, the drive motor 4-2 drives the drive shaft 4-1 to rotate, the drive shaft 4-1 drives the rotating frame 4-3 to rotate, and the rotating frame 4-3 drives the lifting frame 6-1 and the mounting frame 6-3 to rotate, that is, drives the bending roller 2 and the support roller 11 to rotate. With the support shaft 12 as the center, the rotating frame 4-3 rotates 180°, realizing the bending process of the workpiece by 180° with the forming mold 3-2 as support.

[0091] After the workpiece bending is completed, the rotating frame 4-3 is rotated 90° in the reverse direction. Then, the positioning rod 7-3 is pulled out, and the mounting frame is moved by the shift rod 7-1, so that the shift rod 7-1 drives the fine-tuning thread rod 7-5 to move and align with the threaded hole 7-6. Then, by rotating the shift rod 7-1 and driving the fine-tuning thread rod 7-5 to move, the position of the mounting frame 6-3 is finely adjusted. Next, according to the diameter of the workpiece bending angle, the position of the support roller 11 is adjusted. After the support roller 11 is moved to the correct position, the support shaft 12 is inserted into the support hole 13 on the mounting frame 6-3 after passing through the support roller 11, and the nut is screwed on the support shaft 12 to lock it. At this time, the bending roller 2 and the support roller 11 are respectively placed on the upper and lower sides of the workpiece after bending. Then, the lifting frame 6-1 is moved by the lifting hydraulic rod 6-2, that is, the bending roller 2 and the support roller 11 are used to perform secondary flattening and finishing of the plate material on the upper and lower sides of the workpiece bending angle.

[0092] The technical advantages achieved by adopting the above technical solution are as follows:

[0093] 1. This device is equipped with a replaceable shaping mold 3-2 and a bending roller 2 driven to rotate by a rotating frame 4-3, thereby realizing the bending process of the workpiece by clamping the workpiece with the shaping mold 3-2 and the bending roller 2.

[0094] 2. This device has a lifting frame 6-1 on the rotating frame 4-3, and an installation frame 6-3 on the lifting frame 6-1. Then, a bending roller 2 and a support roller 11 are installed on the installation frame 6-3 to realize the bending process of the workpiece by the bending roller 2, and after the bending process is completed, the workpiece is clamped by the bending roller 2 and the support roller 11 to flatten the workpiece.

[0095] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A multi-angle adjusting processing copper material bending machine, comprising a frame (1) and a bending roller (2), wherein the bending roller (2) is arranged at the side of the frame (1); characterized in that, Also contain: Workbench mechanism (3), the workbench mechanism (3) is arranged on the rack (1); Bending drive mechanism (4), the bending drive mechanism (4) is arranged on the rack (1); The bending drive mechanism (4) contains: Drive shaft (4-1), the drive shaft (4-1) is rotatably arranged on the rack (1) by bearing, and the drive shaft (4-1) is movably arranged in the support table (3-1) by the cylindrical cavity of the support table (3-1); Drive motor (4-2), the drive motor (4-2) is fixedly arranged on the rack (1), and the output shaft of the drive motor (4-2) is drivingly connected with the drive shaft (4-1); Rotary frame (4-3), the rotary frame (4-3) is fixedly arranged on the drive shaft (4-1), and the rotary frame (4-3) is arranged outside the rack (1); Adjusting part (6), the adjusting part (6) is arranged on the rotary frame (4-3); The adjusting part (6) contains: Lifting frame (6-1), the lifting frame (6-1) is movably arranged on the rotary frame (4-3); Lifting hydraulic rod (6-2), the lifting hydraulic rod (6-2) is fixedly arranged on the top plate of the rotary frame (4-3), and the output shaft of the lifting hydraulic rod (6-2) is fixedly arranged on the top plate of the lifting frame (6-1); Mounting frame (6-3), the mounting frame (6-3) is slidably arranged in the lifting frame (6-1), and the bending roller (2) is rotatably arranged on the mounting frame (6-3) by bearing; Gear shifting part (7), the gear shifting part (7) is arranged on the lifting frame (6-1), and the gear shifting part (7) is arranged in cooperation with the mounting frame (6-3); The gear shifting part (7) contains: Gear shifting rod (7-1), the gear shifting rod (7-1) is rotatably arranged on the mounting frame (6-3) by bearing, and a threaded hole (7-6) is formed in the end plate of the lifting frame (6-1), the gear shifting rod (7-1) is movably arranged in the threaded hole (7-6); Positioning seat (7-2), the positioning seat (7-2) is fixedly arranged on the end plate of the lifting frame (6-1); Positioning rod (7-3), the positioning rod (7-3) is arranged in the positioning seat (7-2), and a positioning hole (7-4) is formed in the gear shifting rod (7-1), and the positioning rod (7-3) is arranged in the positioning hole (7-4); Fine adjustment screw rod (7-5), the fine adjustment screw rod (7-5) is integrally formed on the gear shifting rod (7-1), and the fine adjustment screw rod (7-5) is arranged in cooperation with the threaded hole (7-6).

2. The multi-angle adjustable processing copper material bending machine according to claim 1, characterized in that: The workbench mechanism (3) contains: Support table (3-1), the support table (3-1) is fixedly arranged on the rack (1), and a cylindrical cavity is formed in the support table (3-1) and extends through front and back; Shaping die (3-2), the shaping die (3-2) is arranged on the support table (3-1); Locking part (5), the locking part (5) is arranged on the rack (1), and the locking part (5) is arranged in cooperation with the shaping die (3-2).

3. The multi-angle adjustable processing copper material bending machine according to claim 2, characterized in that: The locking part (5) contains: The limiting seat (5-1) is movably disposed inside the forming mold (3-2), and the upper and lower side walls of the limiting seat (5-1) abut against the upper and lower inner walls of the forming mold (3-2) respectively. The limiting block (5-2) is arranged symmetrically at the top and bottom. The limiting seat (5-1) has a limiting groove (5-3) on its side wall. The limiting block (5-2) is slidably disposed in the limiting groove (5-3). The forming mold (3-2) has a slot (5-4) on its inner wall. One end of the limiting block (5-2) extending out of the limiting groove (5-3) is movably inserted into the slot (5-4). The limiting threaded rod (5-5) is threaded and inserted on the end plate of the frame (1), and the end of the limiting threaded rod (5-5) is inserted between the upper and lower limiting blocks (5-2). The limiting block (5-2) is set as a wedge at one end of the limiting threaded rod (5-5).

4. The multi-angle adjustable processing copper material bending machine according to claim 3, characterized in that: A tension spring (8) is fixedly installed on the inner end wall of the limiting groove (5-3), and the other end of the tension spring (8) is fixedly installed on the limiting block (5-2).

5. The multi-angle adjustable processing copper material bending machine according to claim 4, characterized in that: The support platform (3-1) has a positioning groove (9) on its side wall. The inner wall of the shaping mold (3-2) and the side wall of the limiting seat (5-1) are respectively integrally formed with positioning blocks (10), and the positioning blocks (10) are movably locked in the positioning groove (9).

6. The multi-angle adjustable processing copper material bending machine according to claim 1, characterized in that: The mounting frame (6-3) is provided with a support roller (11), and a support shaft (12) is movably inserted through the support roller (11). A support hole (13) is provided on the side plate of the mounting frame (6-3), and the support shaft (12) is movably inserted through the support hole (13). A nut is screwed onto the end of the support shaft (12) away from the end cap.

7. The method of using a multi-angle adjustable processing copper material bending machine according to any one of claims 1-6, characterized in that: Place the shaping mold (3-2) onto the support platform (3-1) from the right side. Then insert the limiting seat (5-1) into the shaping mold (3-2) so that the limiting seat (5-1) and the shaping mold (3-2) are held outside the support platform (3-1). Then rotate the limiting threaded rod (5-5) so that the limiting threaded rod (5-5) is inserted between the two limiting blocks (5-2) in the limiting seat (5-1) and pushes the limiting blocks (5-2) to slide into the slot (5-4) opened on the inner wall of the shaping mold (3-2), thereby locking the limiting seat (5-1) and the shaping mold (3-2) by the limiting blocks (5-2). Move the shift lever (7-1) to disengage the fine-tuning threaded rod (7-5) from the threaded hole (7-6), then push the shift lever (7-1) to align the positioning hole (7-4) with the positioning seat (7-2), insert the positioning rod (7-3) into the positioning hole (7-4) to lock the shift lever (7-1), at this time the shift lever (7-1) pushes the mounting bracket (6-3) to move within the lifting frame, so that the mounting bracket (6-3) drives the bending roller (2) to move, so that the center of the bending roller (2) moves to the extended line of the radius of the support platform (3-1); The workpiece is placed on the shaping mold (3-2), and then the workpiece is clamped between the shaping mold (3-2) and the bending roller (2). The support roller (11) set in the mounting frame (6-3) abuts against the surface of the workpiece. Then, the drive motor (4-2) drives the drive shaft (4-1) to rotate. The drive shaft (4-1) drives the rotating frame (4-3) to rotate. The rotating frame (4-3) drives the lifting frame (6-1) and the mounting frame (6-3) to rotate, that is, drives the bending roller (2) and the support roller (11) to rotate. With the drive shaft (4-1) as the center, the rotating frame (4-3) rotates 180°, so that the workpiece is bent 180° with the shaping mold (3-2) as support. After bending the workpiece, rotate the rotating frame (4-3) 90° in the reverse direction. Then, pull out the positioning rod (7-3) and move the mounting frame (6-3) by pulling the shift rod (7-1). This causes the shift rod (7-1) to move the fine-tuning thread rod (7-5) to align with the threaded hole (7-6). Then, by rotating the shift rod (7-1) and moving the fine-tuning thread rod (7-5), the position of the mounting frame (6-3) is finely adjusted. Finally, adjust the position of the support roller (11) according to the diameter of the workpiece bending angle. After moving the support roller (11) to the correct position, the support shaft (12) is inserted through the support roller (11) and into the support hole (13) on the mounting frame (6-3). The nut is screwed onto the support shaft (12) to lock it. At this time, the bending roller (2) and the support roller (11) are respectively placed on the upper and lower sides of the workpiece after bending. Then, the lifting frame (6-1) is moved by the lifting hydraulic rod (6-2), that is, the upper and lower sides of the workpiece are flattened and sorted by the bending roller (2) and the support roller (11).

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