Waveguide tube bending forming method and system
By filling the waveguide tube with steel strips and extruding them in succession using a mold, the problems of wrinkles and bulging during the waveguide tube bending process are solved, achieving high-precision bending and mass production.
Patent Information
- Application Number
- CN202510902784.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2025-10-17
AI Technical Summary
During the waveguide bending and forming process, wrinkles, bulges or breakage are likely to occur, resulting in product failure and waste.
The waveguide is filled with several layers of steel strips, which are successively extruded and bent into shape using a mold, combined with heat treatment and protective paper to ensure internal support and precision.
The deformation of the waveguide during the bending process is reduced, the molding accuracy and product quality are improved, and it is suitable for mass production.
Smart Images
Figure CN120790732A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electronic component production, in particular to a waveguide bending forming method and system. BACKGROUND
[0002] The waveguide is a metal pipe with smooth inner wall and mostly rectangular cross section, which is mainly used for transmitting ultra-high frequency electromagnetic waves. The electromagnetic wave pulse signals transmitted through the waveguide can be transmitted to the target device with minimal loss.
[0003] Some waveguides in devices require lightweight and easy to carry and assemble. Such waveguides are mostly made of aluminum alloy materials, such as 6061 aluminum alloy materials. During the bending forming process of such waveguides made of such materials, the waveguide wall is prone to wrinkles or bulges due to poor ductility of the bent waveguide, and even breakage, resulting in product defects and a lot of waste. SUMMARY
[0004] The purpose of the present application is to provide a waveguide bending forming method and system to solve the problem of easy damage during the bending forming process of the waveguide.
[0005] The technical solution of the present application to solve the above technical problems is as follows:
[0006] On the one hand, the present application provides a pipe bending forming method, comprising the following steps:
[0007] Step 1: filling the waveguide with several layers of steel strips;
[0008] Step 2: using a mold to successively extrude and bend the waveguide to a predetermined angle along the stacking direction of the steel strips.
[0009] The beneficial effects of the present application are:
[0010] In the waveguide bending forming method of the present application, the steel strips have bendable properties. During the bending process of the waveguide, the waveguide is not prone to bulging and wrinkling due to the filling and support of the several layers of steel strips inside the waveguide, reducing the cross-sectional deformation. The use of a mold to successively bend the waveguide ensures the forming precision of the waveguide parts, which is beneficial to mass production.
[0011] On the basis of the above technical solution, the present application can also be improved as follows:
[0012] Further, the step 1 comprises:
[0013] inserting a plurality of layers of first steel strips and two layers of second steel strips into the waveguide tube until the steel strips cannot be manually inserted between any adjacent layers of steel strips, the two layers of second steel strips each having a first section located inside the waveguide tube and a second section located outside the waveguide tube;
[0014] inserting at least one layer of first steel strips between the second sections of the two layers of second steel strips;
[0015] pulling the first sections of the two layers of second steel strips until the second sections of the two layers of second steel strips and the first steel strips located between the two layers of second sections are inserted into the waveguide tube.
[0016] In the above steps, after the waveguide tube is filled with the steel strips, the waveguide tube can be further filled by clamping at least one layer of first steel strips between the two layers of second steel strips, which can further reduce the deformation of the waveguide tube during the bending process.
[0017] Further, before filling the waveguide tube with the steel strips, a protective paper is attached to the inner wall of the waveguide tube to prevent the steel strips from scratching the inner wall of the waveguide tube and to improve the smoothness of the inner wall of the product.
[0018] Further, before attaching the protective paper to the inner wall of the waveguide tube, the waveguide tube is subjected to a heat treatment to reduce the hardness of the material of the waveguide tube and to eliminate internal stress, so that the waveguide tube is easy to bend.
[0019] Further, the heat treatment of the waveguide tube includes annealing, the annealing temperature is 405-415°C, and the holding time is 3 hours, which increases the ductility of the material of the waveguide tube and prepares for the bending process of the waveguide tube.
[0020] Further, the length of the second section of the second steel strip is not less than the length of the waveguide tube, so that when the second section is inserted into the waveguide tube, the second section can fill the inside of the waveguide tube in the length direction of the waveguide tube.
[0021] In another aspect, the present application also provides a waveguide tube bending system, which comprises:
[0022] a filling body comprising a plurality of layers of first steel strips and two layers of second steel strips filled in the waveguide tube;
[0023] a mold comprising a fixed mold and a movable mold arranged oppositely, the fixed mold and the movable mold having a curved forming cavity therebetween for bending the waveguide tube; and
[0024] a pressing device acting on the movable mold to push the movable mold to move towards the fixed mold and to press and bend the waveguide tube.
[0025] The waveguide bending forming system provided by the application places the filled waveguide into a forming cavity, and uses the extrusion drive of the extrusion equipment to bend the waveguide according to the curvature of the forming cavity, so that the waveguide is bent and formed, and the operation is simple, convenient and beneficial to batch processing of the waveguide.
[0026] Further, the traction device is provided with a traction mechanism and a limiting mechanism.
[0027] When the two layers of the second steel belt are inserted into the waveguide, the traction mechanism acts on the first section of the two layers of the second steel belt to insert the second section of the second steel belt into the waveguide, and the limiting mechanism acts on the waveguide to limit the movement of the waveguide along the traction direction of the traction mechanism; when the steel belt cannot be manually inserted into the waveguide, the traction mechanism can be used to insert more steel belt into the waveguide, so that the waveguide can be fully filled with the steel belt.
[0028] Further, the end of one side of the first section of the two layers of the second steel belt is detachably connected with the traction mechanism, so that the steel belt can be extracted from the waveguide for reuse.
[0029] Further, the end of one side of the first section of the two layers of the second steel belt is welded on the same set of connecting components, and the connecting components are detachably connected with the traction mechanism, so that the two sets of second steel belts and the first steel belt inserted between the two sets of second steel belts can be synchronously moved under the action of the traction mechanism, and the waveguide can be fully filled. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 The process flow chart of the waveguide bending forming method in the embodiment of the application is shown;
[0031] Figure 2 The assembly structure diagram of the filling body and the waveguide in the embodiment of the application is shown;
[0032] Figure 3 The working principle diagram of the traction device in the embodiment of the application is shown;
[0033] Figure 4 The positional relationship diagram of the waveguide and the mold in one step of the embodiment of the application is shown;
[0034] Figure 5 The positional relationship diagram of the waveguide and the mold in another step of the embodiment of the application is shown;
[0035] Figure 6 The positional relationship diagram of the waveguide and the mold in another step of the embodiment of the application is shown;
[0036] Figure 7A working state schematic view of the extrusion equipment and the mold in the embodiment of the present application;
[0037] In the drawings, the components represented by the respective reference numerals are listed as follows:
[0038] 1 - waveguide, 2 - moving die, 3 - fixed die, 4 - positioning shaft, 5 - first side plate, 6 - second side plate, 7 - base, 8 - moving die cover plate, 9 - traction equipment, 90 - limiting mechanism, 91 - traction mechanism, 10 - mold, 11 - extrusion equipment, 12 - filler, 120 - first steel belt, 121 - second steel belt, 121a - first section, 121b - second section, 122 - connecting component. DETAILED DESCRIPTION
[0039] The principles and features of the present application are described below, and the examples are only used to explain the present application, and are not used to limit the scope of the present application.
[0040] The present application provides a waveguide bending forming method and system.
[0041] Reference Figure 1 The waveguide bending forming method includes the following steps:
[0042] Step 1: Fill several layers of steel belts in the waveguide 1 to fill the internal space of the waveguide 1 with the steel belts;
[0043] Step 2: Use the mold 10 to successively extrude and bend the waveguide 1 to a predetermined angle along the stacking direction of the steel belts.
[0044] In step 1, if no material is filled in the waveguide 1, the waveguide 1 is prone to bulging, wrinkling or even damage during direct bending forming. Currently, low-melting fillers are selected to fill the waveguide 1, although such fillers are easy to remove after the waveguide 1 is bent, but the waveguide 1 is still prone to bulging during bending.
[0045] In the waveguide bending forming method of the present application, since the steel belt has a bendable property, the waveguide 1 is not prone to bulging and wrinkling during bending because it is filled and supported by several layers of steel belts, reducing the deformation of the cross section.
[0046] In addition, during the waveguide 1 bending forming process, the mold 10 is used to successively bend the waveguide 1, which ensures the bending forming precision of the waveguide 1 part and is beneficial to mass production.
[0047] Finally, the steel belt filled in the waveguide 1 can be extracted after the waveguide 1 is bent and formed, so as to be reused.
[0048] In order to fill more steel belts in the waveguide 1 and make the filling structure more compact, in an embodiment, the step 1 can specifically include the following sub-steps; in order to make the content of the sub-steps of the step 1 more clear and explicit, the steel belts are divided into the first steel belts 120 and the second steel belts 121 in the following description, and the sub-steps are as follows:
[0049] Referring to Figure 2 , first, a plurality of layers of the first steel belts 120 and two layers of the second steel belts 121 are inserted into the waveguide 1 until the steel belts between any adjacent layers in the waveguide 1 cannot be manually inserted any more; the length of the second steel belt 121 is greater than the length of the waveguide 1, so at this time, both of the two layers of the second steel belts 121 have the first section 121a located in the waveguide 1 and the second section 121b located outside the waveguide 1;
[0050] Then, at least one layer of the first steel belts 120 is inserted between the second sections 121b of the two layers of the second steel belts 121; at this time, since the second sections 121b of the two layers of the second steel belts 121 are located outside the waveguide 1, it is relatively easy to insert at least one layer of the first steel belts 120 between the second sections 121b of the two layers of the second steel belts 121;
[0051] Then, referring to Figure 2 , the first sections 121a of the two layers of the second steel belts 121 are pulled by the pulling device 9 until the second sections 121b of the two layers of the second steel belts 121 and the first steel belts 120 located between the two layers of the second sections 121b are all inserted into the waveguide 1; at this time, the waveguide 1 is filled with the steel belts and is compact.
[0052] It is easy to understand that in the sub-steps of the step 1 described above, only the length of the second steel belt 121 is limited; generally, the length of the first steel belt 120 is not less than the length of the waveguide 1, that is, the length of the first steel belt 120 can be less than, equal to, or greater than the length of the second steel belt 121; therefore, in some embodiments, the first steel belt 120 and the second steel belt 121 can use steel belts of the same length specification.
[0053] In addition, in some embodiments, before the two layers of the second steel belts 121 are inserted into the waveguide 1, the gap between any two layers of the first steel belts 120 in the waveguide 1 can be selected as the insertion channel of the two layers of the second steel belts 121; therefore, in the process of inserting the second steel belts 121 into the waveguide 1, direct contact between the second steel belts 121 and the inner wall of the waveguide 1 can be avoided.
[0054] Referring to Figure 1In some embodiments, some pre-steps are also included, i.e. before filling the steel strip into the waveguide tube 1, a protective paper such as a kraft paper is attached to the inner wall of the waveguide tube 1, which can avoid the waveguide tube 1 inner wall being scratched by the steel strip and improve the product inner wall smoothness of the waveguide tube 1; it also has a certain lubricating effect, which is convenient for the insertion of the steel strip.
[0055] In addition, in some embodiments, when the waveguide tube 1 is made of 6061 aluminum alloy material, due to the poor plasticity of such material, the bending is easy to crack, therefore, the waveguide tube 1 made of such material needs to be heat treated; refer to Figure 1 Before the protective paper is attached to the inner wall of the waveguide tube 1, the waveguide tube 1 needs to be heat treated to reduce the material hardness of the waveguide tube 1 and eliminate the internal stress.
[0056] Specifically, the heat treatment step of the waveguide tube 1 includes annealing, the annealing temperature is selected between 405℃ to 415℃, and the holding time is set to 3 hours. Through the annealing step, the Brinell hardness of the material of the waveguide tube 1 is reduced, the hardness of the waveguide tube 1 is reduced by 90HB, the stress is eliminated, and the ductility effect of the material of the waveguide tube 1 is increased, which makes good preparation for the later bending step of the waveguide tube 1.
[0057] In step 2, for the mold 10 used, refer to Figures 4 to 6 Wherein, the mold 10 includes a moving die 2 and a fixed die 3, wherein the moving die 2 is located above the fixed die 3, the fixed die 3 is provided with a first side plate 5 and a second side plate 6 on both sides respectively, and the forming cavity for bending forming the waveguide tube 1 is located between the fixed die 3 and the moving die 2, the first side plate 5 and the second side plate 6 are assembled and positioned by the positioning shaft 4, so that the forming cavity is limited by the first side plate 5 and the second side plate 6 on both horizontal sides.
[0058] Optionally, in order to better adapt the width of the forming cavity between the first side plate 5 and the second side plate 6 to the cross-sectional width size of the waveguide tube 1, the positioning shaft 4 can adopt a bolt structure, and on the basis of positioning, the spacing between the first side plate 5 and the second side plate 6 can also be adjusted by screwing the bolt, so that the spacing between the first side plate 5 and the second side plate 6 can just accommodate the waveguide tube 1, and during the bending forming process of the waveguide tube 1, the outer cross-sectional profile of the waveguide tube 1 in the horizontal direction is constrained, which can further avoid the waveguide tube 1 from appearing bulges or wrinkles in the direction of the first side plate 5 and the second side plate 6.
[0059] In addition, refer to 4 to Figure 6 A moving die cover plate 8 is arranged above the moving die 2, which is used to connect the extrusion equipment 11; the lower end surface of the moving die 2 is a convex die surface, and the upper end surface of the fixed die 3 is a concave die surface, through the extrusion action of the extrusion equipment 11, the bending angle and profile of the waveguide tube 1 are adapted to the shape of the above-mentioned concave die surface and convex die surface.
[0060] The outer contour of the waveguide tube 1 is constrained and positioned by the convex die surface, the concave die surface, and the first side plate 5 and the second side plate 6, and the inner contour of the waveguide tube 1 is constrained by the steel belt, so that the plastic brittle fracture and the inner wall deformation of the waveguide tube 1 are prevented, and the bending angle consistency of the formed waveguide tube 1 is high.
[0061] For step 2, different forming angle molds 10 are needed to be used in turn according to the different bending degrees of the waveguide tube 1 product.
[0062] Specifically, in one embodiment, when the bending degree of the waveguide tube 1 required by the design is 82°, four pairs of molds 10 with different forming angles are arranged to bend the waveguide tube 1, that is, the forming angle of the first pair of molds 10 is 23°, the forming angle of the second pair of molds 10 is 46°, the forming angle of the third pair of molds 10 is 69°, and the forming angle of the fourth pair of molds 10 is 82°. The waveguide tube 1 is bent and formed in turn by the four pairs of molds 10, so that the inner wall of the waveguide tube 1 is smooth and free of deformation. Specifically:
[0063] Firstly, referring to Figs. 4 and 5, Figure 7 In the first group of molds 10, the bending angle (between the horizontal plane) of the forming cavity is set to 23°, the waveguide tube 1 is placed on the fixed die 3, the first side plate 5 and the second side plate 6 are attached to the waveguide tube 1, and the positioning shaft 4 in the form of a bolt is locked, and the waveguide tube is bent to 23° by the pressure of the extrusion equipment 11. The inner wall of the formed waveguide tube 1 is smooth and free of wrinkles.
[0064] Then, the forming angle of the second pair of molds 10 is 46°, the waveguide tube 1 bent and formed to 23° is loaded into the fixed die 3 above, the first side plate 5 and the second side plate 6 are attached to the waveguide tube 1, and the positioning shaft 4 in the form of a bolt is locked, and the waveguide tube is bent to 46° by the pressure of the extrusion equipment 11; when the waveguide tube is bent to 46°, the waveguide tube 1 is disassembled to calibrate the angle, so as to ensure the angle consistency.
[0065] Referring to Figs. 6 and 7, Figure 5 The forming angle of the third pair of molds 10 is 69°, the waveguide tube 1 bent and formed to 46° is loaded into the fixed die 3 above, the first side plate 5 and the second side plate 6 are attached to the waveguide tube 1, and the positioning shaft 4 in the form of a bolt is locked, and the waveguide tube is bent to 69° by the pressure of the extrusion equipment 11; when the waveguide tube is bent to 69°, the inner wall of the formed waveguide tube 1 is smooth and free of wrinkles, the waveguide tube 1 is disassembled to calibrate the angle, so as to ensure the angle consistency.
[0066] Referring to Figs. 8 and 9, Figure 6, the fourth vice-mold 10 is shaped at an angle of 82°, the waveguide tube 1 is bent and shaped at 69° and is placed above the fixed mold 3, the first side plate 5 and the second side plate 6 are attached to the waveguide tube 1, and the positioning shaft 4 in the form of a bolt is locked, the waveguide tube is bent to 82° by the pressure of the extrusion equipment 11; when the waveguide tube is bent to 82°, the inner wall of the shaped waveguide tube 1 is smooth and has no wrinkles, and the waveguide tube 1 is removed to calibrate the angle and ensure the consistency of the angle.
[0067] The shaping and bending mode and the surface-to-surface bending mode can prevent wrinkles, prevent plastic brittle fracture of the waveguide tube and deformation of the inner wall, and finally bend and shape the 82° aluminum bent waveguide tube 1.
[0068] Referring to Figures 2 to 7 The application further provides a waveguide tube 1 bending and shaping system, which comprises the several sets of molds 10 with different bending and shaping angles, the extrusion equipment 11 and the filling body 12 mentioned above.
[0069] Referring to Figure 2 The filling body 1 comprises the several layers of first steel belts 120 and the two layers of second steel belts 121 filled in the waveguide tube 1.
[0070] Referring to Figure 7 The extrusion equipment 11 acts on the movable mold cover plate 8 at the upper end of the movable mold 2 and extrudes the movable mold 2 downward to compress the forming cavity and bend and shape the waveguide tube 1.
[0071] The extrusion equipment 11 acts on the molds 10 with different shaping angles, so that the waveguide tube 1 can be bent and shaped according to the curvature of the forming cavity, and the operation is simple, convenient and beneficial to batch processing of the waveguide tube 1.
[0072] The extrusion equipment 11 is driven by hydraulic pressure.
[0073] Referring to Figure 3 In one embodiment, the waveguide tube 1 bending and shaping system further comprises a traction equipment 9, and the traction equipment 9 is used to insert the second section 121b of the two layers of second steel belts 121 into the waveguide tube 1.
[0074] Referring to Figure 3 Specifically, the traction equipment 9 is provided with a traction mechanism 91 and a limiting mechanism 90, the traction mechanism 91 acts on the end of the first section 121a of the two layers of second steel belts 121 to insert the second section 121b of the second steel belts 121 into the waveguide tube 1, and the limiting mechanism 90 acts on the waveguide tube 1 to limit the movement of the waveguide tube 1 along the traction direction of the traction mechanism 91, so that more steel belts can be inserted into the waveguide tube 1 by the traction of the traction mechanism 91 when the waveguide tube 1 cannot be manually inserted with steel belts, and the waveguide tube 1 can be fully filled with the steel belts.
[0075] Among them, the limiting principle of the limiting mechanism 90 is: there is a group of cavities inside the limiting mechanism 90 that are no larger than the inner contour of the cross section of the waveguide tube 1. Under the traction of the traction mechanism 91, the second steel belt 121 can pass through the aforementioned cavity, while the cross-sectional physical structure of the waveguide tube 1 is blocked by the limiting mechanism 90 and cannot move in the same direction.
[0076] Among them, the ends of one side of the first section 121a of the two layers of second steel belts 121 are detachably connected to the traction mechanism 91. After the waveguide tube 1 is formed, the steel belts can be pulled out of the waveguide tube 1 so that the steel belts can be reused.
[0077] In one embodiment, referring to Figure 2 The end portions of one side of the first section 121a of the two layers of second steel belts 121 are welded to the same set of connecting parts 122. The connecting parts 122 are T-shaped, and the traction mechanism 91 has a concave cavity that matches the contour of the aforementioned T-shaped connecting parts 122. When the connecting parts 122 are placed in the concave cavity, they can be pulled by the traction mechanism 91, prompting the two groups of second steel belts 121 and the first steel belt 120 inserted between the two groups of second steel belts 121 to move synchronously under the action of the traction mechanism.
[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0079] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0080] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.
[0081] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0082] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.
Claims
1. A waveguide bending forming method, characterized in that: The steps include: Step 1: Fill the waveguide with several layers of steel tape; Step 2: Along the stacking direction of the steel strip, use a mold to extrude and bend the waveguide into a predetermined angle one by one.
2. The waveguide bending forming method according to claim 1, characterized in that: The step 1 comprises: Inserting several layers of the first steel strip and two layers of the second steel strip into the waveguide until no further steel strips can be manually inserted between any adjacent layers of the steel strip, and each of the two layers of the second steel strip has a first section located inside the waveguide and a second section located outside the waveguide; inserting at least one layer of the first steel belt between the second sections of the two layers of the second steel belt; The first sections of the two layers of second steel strips are pulled until the second sections of the two layers of second steel strips and the first steel strip located between the two layers of second sections are inserted into the waveguide.
3. The waveguide bending forming method according to claim 2, characterized in that: Before filling the waveguide with steel tape, a protective paper is attached to the inner wall of the waveguide.
4. The waveguide bending forming method according to claim 3, characterized in that: Before attaching the protective paper to the inner wall of the waveguide, the waveguide is heat treated to reduce the hardness of the waveguide material and eliminate internal stress.
5. The waveguide bending forming method according to claim 4, characterized in that: The heat treatment step of the waveguide includes annealing, the annealing temperature is 405° C. to 415° C., and the holding time is 3 hours.
6. The waveguide bending and forming system according to claim 2, characterized in that: The length of the second section of the second steel strip is not less than the length of the waveguide tube.
7. Waveguide bending and forming system, characterized in that, A method for bending and forming a waveguide tube according to any one of claims 2 to 6, comprising: a filling body comprising a plurality of layers of first steel strips and two layers of second steel strips filled in the waveguide; A mold comprising a fixed mold and a movable mold arranged opposite to each other, wherein a curved molding cavity is defined between the fixed mold and the movable mold, and the molding cavity is used to bend the waveguide; and The extrusion device acts on the movable die to push the movable die to move toward the fixed die and bend the waveguide tube.
8. The waveguide bending and forming system according to claim 7, characterized in that: It also includes a traction device, wherein the traction device has a traction mechanism and a limiting mechanism; When the two layers of the second steel belts are inserted into the waveguide tube, the traction mechanism acts on the first sections of the two layers of the second steel belts to pull the second sections of the second steel belts into the waveguide tube; the limiting mechanism acts on the waveguide tube to limit the movement of the waveguide tube along the traction direction of the traction mechanism.
9. The waveguide bending and forming system according to claim 8, characterized in that: The ends of one side of the first section of the two layers of the second steel belts are both detachably connected to the traction mechanism.
10. The waveguide bending and forming system according to claim 9, characterized in that: One side end portions of the first sections of the two layers of the second steel belts are welded to the same set of connecting components, and the connecting components are detachably connected to the traction mechanism.