A door frame-shaped space pipe bending machine and a pipe bending production line

Abstract

The utility model discloses a door frame shape space pipe bender and pipe production line, include: first processing platform, first processing platform is fixed with two bending module, and bending module is equipped with clamping groove and the bending drive source of drive clamping groove rotation, and door frame shape pipe is along first direction and is inserted to clamping groove, and clamping groove clamps door frame shape pipe, and bending drive source action, drive clamping groove rotation, realize the bending of door frame shape pipe, adopt this kind of structure setting, and door frame shape pipe is along first direction, that is, along X axle direction movement, and is translated to clamping groove, then through the action of bending drive source, make clamping area rotate, form the effect of space bending, and this kind of door frame shape space pipe bender, need not travelling crane auxiliary pipe, simple operation, and two bending module synchronous bending can improve the bending efficiency, improve bending accuracy greatly.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, specifically to a door frame-shaped spatial pipe bending machine and a pipe bending production line. Background Technology

[0002] In the existing technology, stainless steel screen-type superheaters have a door frame-shaped serpentine tube coil. The process requires spatial bending in the bend area of ​​the door frame-shaped structure. That is, a door frame-shaped structure that is normally on the horizontal plane (the plane formed by the X and Y axes) now needs to be bent along the Z axis to form a spatial bending effect.

[0003] The current method involves using a crane to assist in pipe bending. This means the crane lifts the semi-finished, frame-shaped pipe, which is then bent using a horizontal bending machine. Bending on both sides requires two separate operations. This processing method has the following problems: First, it occupies the crane's space; second, due to the long pipe length (over 10m), there are significant safety hazards; third, because the crane and the bending machine cannot be perfectly synchronized, the pipe is prone to bending during lifting, the straightness of the bent pipe cannot be guaranteed, bending efficiency is greatly reduced, and the labor intensity for workers is high. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is how to improve the bending efficiency of door frame-shaped pipes. A door frame-shaped spatial pipe bending machine includes: The first processing platform has two fixed bending modules. Each bending module is equipped with a clamping groove and a bending drive source that drives the clamping groove to rotate. A door frame-shaped bent tube is inserted into the clamping groove along a first direction. The clamping groove clamps the door frame-shaped bent tube. The bending drive source is activated to drive the clamping groove to rotate, thereby realizing the bending of the door frame-shaped bent tube.

[0005] The bending module includes a rotating head, a moving part, and a first driving mechanism. The rotating head is connected to the bending driving source. The rotating head has a first groove. The first driving mechanism drives the moving part to move toward the rotating head. The moving part has a second groove. The first groove and the second groove cooperate to form the clamping groove.

[0006] The inner wall of the clamping groove is provided with several annular grooves.

[0007] The first driving mechanism includes a first fixed frame, a first driving frame, a first driving source, and a first linkage assembly. The first driving frame slides relative to the first fixed frame. The first driving source drives the first driving frame to slide through the first linkage assembly. The first driving frame is connected to the moving part.

[0008] The first drive mechanism further includes a first connecting block and a locking member. The first drive frame is provided with a first slide rail. The first connecting block is partially embedded in the first slide rail. One end of the first connecting block is connected to the moving member. The locking member is connected and fixed to the first drive frame. The other end of the first connecting block abuts against the locking member.

[0009] The first linkage assembly includes a first connecting rod and a second connecting rod. One end of the first connecting rod is rotatably connected to one end of the second connecting rod, the other end of the first connecting rod is rotatably connected to the first fixed frame, and the other end of the second connecting rod is rotatably connected to the first drive frame. The first drive source is connected to the connection point of the first connecting rod and the second connecting rod.

[0010] The first processing platform is also fixed with a support module, the support module is provided with a support member, the support member abuts against the door frame-shaped bend, and the support member is located on one side of the clamping groove.

[0011] The support module includes a second drive mechanism and a third drive mechanism. The second drive mechanism drives the support member to move along the first direction; the third drive mechanism drives the support member to move along a third direction, which is perpendicular to the first direction.

[0012] It also includes a fourth drive mechanism and a fifth drive mechanism. The fourth drive mechanism drives the bending module to slide along the second direction, and the fifth drive mechanism moves the bending module to slide along the third direction. The second direction and the third direction are perpendicular to each other.

[0013] Therefore, the technical problem to be solved by this utility model is how to improve the bending efficiency of door frame-shaped bends. A bend production line includes the aforementioned door frame-shaped spatial bend machine and a second processing platform. The second processing platform is fixed with a double-head small R bend machine, which bends the pipe into the door frame-shaped bend. The first processing platform is located on one side of the second processing platform.

[0014] The technical solution of this utility model has the following advantages: 1. The present invention provides a portal frame-shaped spatial tube bending machine. With this structure, the portal frame-shaped tube moves along a first direction, that is, along the X-axis, and translates into the clamping groove. Then, through the action of the bending drive source, the clamping area is rotated to form a spatial bending effect. This portal frame-shaped spatial tube bending machine does not require a traveling crane to assist in tube bending, is easy to operate, and the two bending modules bend simultaneously, which can improve bending efficiency and greatly improve bending accuracy.

[0015] 2. This utility model provides a portal frame-shaped spatial pipe bending machine. The rotating head and the moving part cooperate to form a clamping groove, making the clamping more precise. During the movement, the portal frame-shaped pipe can first fall into the second groove, and then the clamping effect is formed by the movement of the moving part, reducing the processing difficulty. In addition, the mechanical gripper arm of a multi-axis robot can also be used for clamping, which can also achieve the effect of clamping the portal frame-shaped pipe.

[0016] 3. The portal frame-shaped spatial pipe bending machine provided by this utility model has an annular groove to improve the stability of clamping.

[0017] 4. The door frame-shaped spatial pipe bending machine provided by this utility model has a first drive mechanism that makes the movement of the moving parts more stable.

[0018] 5. The portal frame-shaped spatial pipe bending machine provided by this utility model adopts the above-mentioned structural setting, which makes the installation of the entire first drive mechanism more convenient. Moreover, the operator can adjust the position of the locking part according to actual needs, thereby adjusting the initial position of the moving part to meet the processing needs of pipe bending of different specifications.

[0019] 6. The portal frame-shaped spatial pipe bending machine provided by this utility model has a first connecting rod assembly that improves the stability of the drive.

[0020] 7. The portal frame-shaped spatial pipe bending machine provided by this utility model has a support component that provides a support effect, making the portal frame-shaped pipe less prone to shaking during the bending process and improving bending efficiency.

[0021] 8. The present invention provides a portal frame-shaped spatial pipe bending machine, wherein the support component can be adjusted in position according to actual needs to improve the support effect of the portal frame-shaped pipe bending.

[0022] 9. The present invention provides a door frame-shaped spatial pipe bending machine, wherein the translation and lifting functions of the bending module can ensure the alignment of the bending module with the door frame-shaped pipe.

[0023] 10. This utility model provides a pipe bending production line where the positional relationship between the first and second processing platforms improves the overall processing effect and efficiency. The feeding direction of the second processing platform is parallel to that of the first processing platform. Specifically, the second processing platform moves to the left along the X-axis, while the first processing platform moves to the right along the X-axis. This creates a U-shaped processing flow, reducing the overall processing space required and making the layout more rational. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of the door frame-shaped bent tube provided by this utility model; Figure 2 A schematic diagram of the structure of a portal frame-shaped spatial pipe bending machine provided by this utility model; Figure 3 A schematic diagram of the structure of the movable component and the first driving mechanism provided by this utility model; Figure 4 for Figure 3 Another structural diagram from a different angle; Figure 5 A schematic diagram of the support module provided by this utility model; Figure 6 for Figure 5 Another structural diagram from a different angle; Figure 7 A schematic diagram of the structure of the rotating head provided by this utility model; Figure 8 This is a schematic diagram of a pipe bending production line provided by the present invention.

[0026] Explanation of reference numerals in the attached figures: 11. First processing platform; 12. Bending module; 13. Door frame-shaped pipe bending machine; 14. Rotating head; 15. Moving part; 16. First drive mechanism; 17. Support module; 18. First sliding pair; 19. Second processing platform; 20. Double-head small R pipe bending machine; 21. Fourth drive source; 22. Fifth drive source; 23. Bracket; 121. Clamping groove; 122. Bending drive source; 141. First groove; 142. Annular groove; 151. Second groove ; 161, First fixed frame; 162, First drive frame; 163, First drive source; 164, First connecting block; 165, Locking element; 166, First connecting rod; 167, Second connecting rod; 171, Support element; 172, Second drive source; 173, Second slide rail; 174, Second fixed frame; 175, Second drive frame; 176, Third drive source; 177, Second linkage assembly; 1211, Annular groove; 1621, First slide rail. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Example 1 This embodiment provides a portal frame-shaped spatial pipe bending machine, as shown in the attached figure. Figures 1-7 As shown, it includes: The first processing platform 11 has two fixed bending modules 12. These two bending modules 12 are symmetrically arranged and have identical structures; therefore, this embodiment only describes the structure of one bending module 12. The bending module 12 is provided with a clamping groove 121 and a bending drive source 122 that drives the clamping groove 121 to rotate. The door-frame shaped bent tube 13 passes through the clamping groove 121 along a first direction, specifically the X-axis direction. It should be noted that the door-frame shaped bent tube 13 is processed in the previous process, i.e., the pipe is processed into a door-frame shaped bent tube 13. Here, the pipe is a long strip of tubing, as shown in the attached figure. Figure 1The dotted line indicates the bending position. The clamping slot 121 clamps the door-frame shaped bent tube 13. The bending drive source 122 actuates, causing the clamping slot 121 to rotate. During this rotation, the tube can be bent upwards or downwards along the Z-axis. This rotation of the clamping slot 121 achieves the bending of the door-frame shaped bent tube 13. With this structure, the door-frame shaped bent tube 13 moves along the first direction, i.e., along the X-axis, and translates into the clamping slot 121. Then, the bending drive source 122 actuates, causing the clamping area to rotate, creating a spatial bending effect. This type of door-frame spatial tube bending machine does not require a traveling crane for auxiliary bending, making operation simple. Furthermore, the simultaneous bending of the two bending modules 12 improves bending efficiency and significantly increases bending accuracy.

[0032] Specifically, as shown in the attached document Figures 1-7 As shown, the bending module 12 includes a rotating head 14, a moving part 15, and a first driving mechanism 16. The rotating head 14 is connected to the bending driving source 122. The rotating head 14 has a first groove 141, which initially opens downwards. When the bending driving source 122 is activated, the rotating head 14 rotates. The first driving mechanism 16 drives the moving part 15 to move toward the rotating head 14. The moving part 15 has a second groove 151, which opens upwards. When the moving part 15 moves upwards along the Z-axis, the first groove 141 and the second groove 151 cooperate to form a clamping groove 121, thus clamping and fixing the door frame-shaped bent tube 13. After the door frame-shaped bent tube 13 is fixed, the bending driving source 122 is activated, the rotating head 14 rotates, and the distance between the first groove 141 and the second groove 151 decreases, thus achieving the bending effect. The bending direction can be adjusted according to actual needs; it can be bent upwards or downwards. It should be noted that the two bending modules 12 operate synchronously, with their bending directions being consistent. The rotating head 14 and the moving component 15 cooperate to form a clamping groove 121, making the clamping more precise. During the movement, the door frame-shaped bent tube 13 can first fall into the second groove 151, and then the clamping effect is achieved through the movement of the moving component 15, reducing the processing difficulty. Alternatively, the mechanical gripper arm of a multi-axis robot can also be used for clamping, which can also achieve the effect of clamping the door frame-shaped bent tube 13.

[0033] Specifically, the inner wall of the clamping groove 121 is provided with a plurality of annular grooves 1211. The annular grooves 1211 are provided to improve the stability of clamping. Here, the annular grooves 1211 are distributed in an array.

[0034] Specifically, the rotating head 14 is also provided with an annular groove 142, and the first groove 141 is connected to the annular groove 142. Here, the first groove 141 is located in the tangential direction of the annular groove 142. In the initial state, the first groove 141 is set horizontally and opens downward. When the rotating head 14 rotates, the first groove 141 will tilt, and the position of the first groove 141 and the second groove 151 will change. That is, the connection position of the first groove 141 and the door frame-shaped bent tube 13 will change. The side wall of the first groove 141 presses against the door frame-shaped bent tube 13 to achieve the bending effect.

[0035] Specifically, as shown in the attached document Figures 3-4 As shown, the first drive mechanism 16 includes a first fixed frame 161, a first drive frame 162, a first drive source 163, and a first linkage assembly. The first drive frame 162 slides relative to the first fixed frame 161, where the first fixed frame 161 is fixedly installed. The first drive frame 162 moves along the Z-axis. A sliding structure is provided between the first fixed frame 161 and the first drive frame 162. This sliding structure can be a slide rail structure or a sliding pair structure, which can be adjusted according to actual needs by those skilled in the art. The first drive source 163 drives the first drive frame 162 to slide through the first linkage assembly. The first drive frame 162 is connected to the moving part 15, thereby achieving the effect of the moving part 15 moving along the Z-axis. The arrangement of the first drive mechanism 16 makes the movement of the moving part 15 more stable. The first drive source 163 can be a hydraulic cylinder, a pneumatic cylinder, or other drive structure.

[0036] Specifically, as shown in the attached document Figures 3-4 As shown, the first drive mechanism 16 also includes a first connecting block 164 and a locking member 165. The first drive frame 162 is provided with a first slide rail 1621, which is located on the side of the first drive frame 162 facing the corresponding bending module 12. The first connecting block 164 is partially embedded in the first slide rail 1621 and slides on the first slide rail 1621. One end of the first connecting block 164 is connected to the moving member 15, and the locking member 165 is fixedly connected to the first drive frame 162. The other end of the first connecting block 164 abuts against the locking member 165. In this embodiment, the moving member 15 is located at the top, and the first connecting block 164 is located between the moving member 15 and the locking member 165. The locking member 165 achieves the locking effect of the moving member 15. With the above structural arrangement, the entire first drive mechanism 16 is easier to install, and the operator can adjust the position of the locking member 165 according to actual needs, thereby adjusting the initial position of the moving member 15 to meet the processing requirements of bending pipes of different specifications. The first drive frame 162 has several holes, and the locking member 165 also has holes. The locking between the first drive frame 162 and the locking member 165 is achieved by bolts. By removing the bolts and adjusting the positional relationship between the locking member 165 and the first drive frame 162, the adjustment effect can be achieved.

[0037] Specifically, as shown in the attached document Figures 3-4 As shown, the first linkage assembly includes a first connecting rod 166 and a second connecting rod 167. One end of the first connecting rod 166 is rotatably connected to one end of the second connecting rod 167, and the other end of the first connecting rod 166 is rotatably connected to a first fixed frame 161. The other end of the second connecting rod 167 is rotatably connected to a first drive frame 162. A first drive source 163 is connected to the connection point of the first connecting rod 166 and the second connecting rod 167. The design of the first linkage assembly improves the stability of the drive.

[0038] Specifically, as shown in the attached document Figures 5-6 As shown, the first processing platform 11 is also fixed with a support module 17. The support module 17 is provided with a support member 171, which abuts against the door frame-shaped bent tube 13 and is located on one side of the clamping groove 121. The support member 171 provides a support effect, making it less likely for the door frame-shaped bent tube 13 to shake during the bending process, thus improving the bending efficiency.

[0039] Specifically, as shown in the attached document Figures 5-6 As shown, the support module 17 includes a second drive mechanism and a third drive mechanism. The second drive mechanism drives the support member 171 to move along a first direction. This second drive mechanism includes a second drive source 172 and a second slide rail 173. The second drive source 172 drives the support member 171 to slide on the second slide rail 173, where the sliding direction of the second slide rail 173 is the X-axis direction. The third drive mechanism drives the support member 171 to move along a third direction, which is the Z-axis direction. In other words, the support member 171 can move vertically up and down to create a support effect. The third direction is perpendicular to the first direction. The support member 171 can be adjusted in position according to actual needs to improve the support effect of the door frame-shaped bend 13.

[0040] Specifically, as shown in the attached document Figures 5-6As shown, the third drive mechanism includes a second fixed frame 174, a second drive frame 175, a third drive source 176, and a second linkage assembly 177. The second drive frame 175 slides relative to the second fixed frame 174, which is fixedly installed. The second drive frame 175 moves along the Z-axis. A sliding structure is provided between the second fixed frame 174 and the second drive frame 175. This sliding structure can be a slide rail structure or a sliding pair structure, which can be adjusted according to actual needs by those skilled in the art. The third drive source 176 drives the second drive frame 175 to slide through the second linkage assembly 177. The second drive frame 175 is connected to the second slide rail 173, thereby achieving the effect of the support member 171 moving along the Z-axis. The third drive mechanism makes the movement of the support member 171 more stable. The third drive source 176 can be a hydraulic cylinder, a pneumatic cylinder, or other drive structure. The structure of the second linkage assembly 177 is the same as that of the first linkage assembly, so it will not be described in detail in this embodiment.

[0041] Specifically, it also includes a fourth drive mechanism and a fifth drive mechanism. The fourth drive mechanism drives the bending module 12 to slide along a second direction, where the second direction is the Y-axis direction, making the second direction perpendicular to the first direction. Further, the fourth drive mechanism includes a fourth drive source 21 and a first sliding pair 18. The first sliding pair 18 is disposed between the first processing platform 11 and the bending module 12. The fourth drive source 21 drives the bending module 12 to slide along the second direction on the first sliding pair 18. In this embodiment, a bracket 23 is fixedly connected below the bending module 12. Specifically, the fourth drive source 21 is connected to the bracket 23, meaning the fourth drive source 21 drives the bracket 23 to slide along the second direction on the first sliding pair 18. The fifth drive mechanism moves the bending module 12 along a third direction, where the third direction is the Z-axis direction, meaning the bending module 12 moves along the Z-axis direction. Here, the fifth drive mechanism is fixed to the bracket 23, and the bending module 12 is moved through the fifth drive mechanism. In this embodiment, the fifth driving mechanism includes a fifth driving source 22, which drives the bending module 12 to move along the Z-axis. A guide structure is also provided between the bending module 12 and the bracket 23, specifically along a third direction. The second and third directions are perpendicular. The translation and lifting functions of the bending module 12 ensure alignment between the bending module 12 and the door frame-shaped bent tube. In this embodiment, the fourth driving source 21 can be a motor, cylinder, or hydraulic cylinder, etc.; the fifth driving source 22 can be a motor, cylinder, or hydraulic cylinder, etc.

[0042] Specifically, the control mechanism can be controlled by a PLC or a microcontroller, and those skilled in the art can choose the control program according to actual needs.

[0043] Example 2 This embodiment provides a pipe bending production line, as shown in the attached figure. Figure 8 As shown, it includes: The specific structure of the portal frame-shaped spatial pipe bending machine and the second processing platform 19 have been described in detail in Embodiment 1, so they will not be described in this embodiment.

[0044] The second processing platform 19 is fixed with a double-head small R-bending machine 20, which bends the pipe fittings into a door frame-shaped bend 13. The double-head small R-bending machine 20 includes two heads: one head for left-side bending and the other head for right-side bending, thus forming the door frame-shaped bend 13. In this embodiment, the double-head small R-bending machine 20 uses a winding bending method, where the clamping block and bending die clamp the pipe fitting, the side-push top block slide holds the pipe fitting in place, and the main shaft drives the bending die and rotating arm to rotate. The pipe fitting is wound within the arc groove of the bending die to obtain the required bending radius. This is existing technology and is not shown in detail in the accompanying drawings. Those skilled in the art can also use other bending equipment for bending. This embodiment only protects the layout of the bending production line and is unrelated to the bending equipment; therefore, the specific structure of the double-head small R-bending machine 20 is not described in detail. The first processing platform 11 is located on one side of the second processing platform 19. The positional relationship between the first processing platform 11 and the second processing platform 19 improves the overall processing effect and efficiency. Here, the feeding direction of the second processing platform 19 is parallel to that of the first processing platform 11. Specifically, the feeding direction of the second processing platform 19 is to the left along the X-axis, while the feeding direction of the first processing platform 11 is to the right along the X-axis. The overall processing flow forms a U-shaped structure, which reduces the overall processing space required and makes the layout more rational.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A portal frame-shaped spatial pipe bending machine, characterized in that, include: The first processing platform (11) has two fixed bending modules (12). The bending module (12) is provided with a clamping groove (121) and a bending drive source (122) that drives the clamping groove (121) to rotate. The door frame-shaped bent tube (13) passes through the clamping groove (121) along the first direction. The clamping groove (121) clamps the door frame-shaped bent tube (13). The bending drive source (122) is activated to drive the clamping groove (121) to rotate, thereby realizing the bending of the door frame-shaped bent tube (13).

2. The portal frame-shaped spatial pipe bending machine according to claim 1, characterized in that, The bending module (12) includes a rotating head (14), a moving part (15), and a first driving mechanism (16). The rotating head (14) is connected to the bending driving source (122). The rotating head (14) is provided with a first groove (141). The first driving mechanism (16) drives the moving part (15) to move toward the rotating head (14). The moving part (15) is provided with a second groove (151). The first groove (141) and the second groove (151) cooperate to form the clamping groove (121).

3. The portal frame-shaped spatial pipe bending machine according to claim 1 or 2, characterized in that, The inner wall of the clamping groove (121) is provided with a number of annular grooves (1211).

4. The portal frame-shaped spatial pipe bending machine according to claim 2, characterized in that, The first drive mechanism (16) includes a first fixed frame (161), a first drive frame (162), a first drive source (163), and a first linkage assembly. The first drive frame (162) slides relative to the first fixed frame (161). The first drive source (163) drives the first drive frame (162) to slide through the first linkage assembly. The first drive frame (162) is connected to the moving part (15).

5. The portal frame-shaped spatial pipe bending machine according to claim 4, characterized in that, The first drive mechanism (16) further includes a first connecting block (164) and a locking member (165). The first drive frame (162) is provided with a first slide rail (1621). The first connecting block (164) is partially embedded in the first slide rail (1621). One end of the first connecting block (164) is connected to the moving member (15). The locking member (165) is connected and fixed to the first drive frame (162). The other end of the first connecting block (164) abuts against the locking member (165).

6. The portal frame-shaped spatial pipe bending machine according to claim 4, characterized in that, The first linkage assembly includes a first connecting rod (166) and a second connecting rod (167). One end of the first connecting rod (166) is rotatably connected to one end of the second connecting rod (167). The other end of the first connecting rod (166) is rotatably connected to the first fixed frame (161). The other end of the second connecting rod (167) is rotatably connected to the first drive frame (162). The first drive source (163) is connected to the connection point of the first connecting rod (166) and the second connecting rod (167).

7. The portal frame-shaped spatial pipe bending machine according to claim 1, characterized in that, The first processing platform (11) is also fixed with a support module (17), the support module (17) is provided with a support member (171), the support member (171) abuts against the door frame-shaped bent pipe (13), and the support member (171) is located on one side of the clamping groove (121).

8. The portal frame-shaped spatial pipe bending machine according to claim 7, characterized in that, The support module (17) includes a second drive mechanism and a third drive mechanism. The second drive mechanism drives the support member (171) to move along the first direction; the third drive mechanism drives the support member (171) to move along a third direction, which is perpendicular to the first direction.

9. The portal frame-shaped spatial pipe bending machine according to claim 1, characterized in that, It also includes a fourth drive mechanism and a fifth drive mechanism. The fourth drive mechanism drives the bending module (12) to slide along the second direction, and the fifth drive mechanism moves the bending module (12) to slide along the third direction. The second direction and the third direction are set perpendicular to each other.

10. A pipe bending production line, characterized in that, The system includes a portal frame-shaped space pipe bending machine as described in any one of claims 1-9 and a second processing platform (19), wherein a double-head small R pipe bending machine (20) is fixed on the second processing platform (19), the double-head small R pipe bending machine (20) bends the pipe into the portal frame-shaped pipe (13), and the first processing platform (11) is located on one side of the second processing platform (19).

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