Automatic bending equipment and high-precision steel pipe bending process

Abstract

The present invention belongs to the technical field of steel pipe bending, and specifically relates to an automatic bending device and a high-precision steel pipe bending process, including a main component, the main component includes a machine body, the machine body is connected to a bracket and a simulation component; a feeding component, the feeding component includes a moving component, the moving component is connected to an expansion component, and the expansion component is connected to a filling component; a bending component one, the bending component one includes a clamping component and a regulating component; a bending component two, the bending component two includes a positioning component and a lifting component. The invention can adjust the path of the steel pipe and the size of the bending area according to the curvature of the steel pipe bending and the diameter of the steel pipe, and indicate the path after adjustment. It can also automatically fill the stretched area when adjusting the size of the feeding area to prevent the arc surface in contact from being too pitted when the lever is feeding, causing the steel pipe to deform. It can also reheat the slightly cooled steel pipe to improve the plasticity.

Description

Technical Field

[0001] The invention belongs to the technical field of steel pipe bending, and in particular relates to automatic bending equipment and a high-precision steel pipe bending process. Background Art

[0002] In the current industrial manufacturing field, steel pipes, as important basic materials, are widely used in many industries such as construction, chemical, pharmaceutical, food, energy, etc. The bending process of steel pipes is an indispensable part of these industries, which is directly related to the structural design, space utilization and installation efficiency of the product. However, traditional steel pipe bending technology has many limitations, which seriously restricts the further improvement of production efficiency and product quality.

[0003] First, most of the steel pipe bending equipment on the market can only process steel pipes within a specific size range, lacking flexibility. This results in different sizes and specifications of steel pipes requiring different bending equipment in actual production, which not only increases equipment costs and floor space, but also reduces production efficiency and adaptability.

[0004] Secondly, the traditional heating process before bending steel pipes mostly adopts a unified heating method, which is difficult to finely control according to factors such as the material, wall thickness and required bending angle of the steel pipe. This may lead to uneven heating of the steel pipe, affect the bending effect, and even cause damage to the steel pipe.

[0005] Furthermore, existing steel pipe bending equipment often lacks an intuitive path demonstration function, and operators judge the bending path based solely on experience, making it difficult to ensure processing accuracy and consistency. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic bending device and a high-precision bending process for steel pipes, which can adjust the path of the steel pipe and the size of the bending area according to the curvature of the steel pipe and the diameter of the steel pipe, and indicate the path after adjustment. When adjusting the size of the feeding area, the stretched area can be automatically filled to prevent the circular arc surface in contact from being too bumpy during lever feeding, resulting in deformation of the steel pipe. The slightly cooled steel pipe can also be reheated to improve plasticity.

[0007] The technical solution adopted by the present invention is as follows:

[0008] An automatic bending device comprises a main body component, wherein the main body component comprises a body, a bracket is fixedly connected to the left side of the top of the body, and a simulation component is arranged below the body;

[0009] A feeding assembly, the feeding assembly comprises a moving assembly arranged on a bracket, an expansion assembly is arranged at the bottom of the moving assembly, and a filling assembly is arranged at the inner circle of the expansion assembly;

[0010] A bending component 1, the bending component 1 comprises a clamping component arranged in the middle of the top surface of the body, and a regulating component is arranged inside the clamping component;

[0011] A second bending assembly, wherein the second bending assembly comprises a positioning assembly arranged on the top surface of the machine body, and a lifting assembly is arranged on the top of the positioning assembly;

[0012] Among them, the steel pipe that needs to be bent enters the moving component for preheating, and the expansion component and the filling component adjust the size of the internal channel according to the width of the steel pipe. At this time, the bending component 1 and the bending component 2 are also adjusted together through the regulating component and the lifting component;

[0013] The moving assembly, the clamping assembly and the positioning assembly are used to adjust the bending path of the steel pipe and are displayed on the simulation assembly;

[0014] Wherein, a stepping screw is arranged at the bottom of the bracket for driving the moving component to move.

[0015] In a preferred embodiment, the simulation component includes a display board fixedly connected to the bottom of the body, and a laser light is fixedly connected below the moving component, the clamping component and the positioning component, and the laser light is slidably connected to the bottom surface of the body.

[0016] In a preferred embodiment, the moving component includes a sliding block slidably connected to the left side of the top surface of the machine body, the top of the sliding block is slidably connected to a lifting block, the right side of the lifting block and the right side of the sliding block are both rotatably connected to feed rollers, the top of the sliding block is slidably connected to a landing block, the inner cavity of the landing block is threadedly connected to a first landing screw, the first landing screw is rotatably connected to the top of the bracket, and an electric heating wire is fixedly connected to the inner cavity of the sliding block.

[0017] In a preferred embodiment, the expansion component includes a movable frame slidably connected to the right side of the sliding block, the inner cavity of the movable frame is slidably connected to a lifting frame, the right bottom of the sliding block is rotatably connected to a first bidirectional screw, and the bottom of the movable frame is threadedly connected to the outer ring of the first bidirectional screw.

[0018] In a preferred embodiment, the filling assembly includes a bottom wheel rotatably connected to the top right side of the moving frame, the inner cavity of the bottom wheel is slidably connected to the top wheel, the top wheel is rotatably connected to the right bottom surface of the lifting frame, the inner cavities of the top wheel and the bottom wheel are fixedly connected to storage tubes, the inner cavity of the storage tube is slidably connected to a filling strip, a sliding groove is provided at the bottom of the filling strip, the tops of adjacent filling strips are slidably connected in the sliding groove, the rear side of the inner cavity of the storage tube is fixedly connected to an electromagnetic plate, and the electromagnetic plate is arranged at the rear end of the filling strip.

[0019] In a preferred embodiment, the clamping assembly includes a middle frame slidably connected to the middle part of the top surface of the machine body, the inner cavity of the middle frame is slidably connected to a mounting frame, the top of the mounting frame is rotatably connected to a second lifting and lowering screw, the top of the second lifting and lowering screw is threadedly connected to the top of the middle frame, and the middle of the inner cavity of the middle frame and the mounting frame are both rotatably connected to a first guide wheel.

[0020] In a preferred embodiment, the regulating assembly includes a movable ring slidably connected to the bottom of the inner cavity of the middle frame, the bottom of the middle frame is rotatably connected to a second bidirectional screw, the outer ring of the second bidirectional screw is threadedly connected to the bottom of the movable ring, the inner ring of the movable ring is rotatably connected to a limit ring, and the limit ring is slidably connected to the outer ring of the first guide wheel.

[0021] In a preferred embodiment, the positioning assembly includes a right side frame slidably connected to the right side of the machine body, a mounting block is slidably connected to the bottom of the inner cavity of the right side frame, a second guide wheel is arranged on the top of the mounting block, a third bidirectional screw is rotatably connected to the middle part of the right side frame, and the outer ring of the third bidirectional screw is threadedly connected to the bottom of the mounting block.

[0022] In a preferred embodiment, the lifting assembly includes a cross groove opened on the top of the second guide wheel, the inner cavity of the cross groove is slidably connected to a lifting ring, the top of the lifting ring is rotatably connected to a third lifting screw, and the top of the third lifting screw is threadedly connected to the top of the second guide wheel.

[0023] A high-precision steel pipe bending process, applied to any of the above-mentioned automatic bending equipment, comprising:

[0024] S1: Adjust the positions of the sliding block, the middle frame and the right frame according to the curvature of the steel pipe to be bent. The adjusted positions are projected on the display board through the laser light to show the bending path of the steel pipe, and are adjusted multiple times according to the needs until the specified position is reached;

[0025] S2: According to the width of the steel pipe, the width of the feeding area is adjusted by adjusting the distance between the front and rear two sets of moving frames and the bottom wheel and the top wheel, and the height of the feeding area is adjusted by stretching the bottom wheel and the top wheel; at the same time, the distance between the front and rear two sets of limit rings, the second guide wheel and the lifting ring is adjusted to control the width and height of the bending area to adapt to the size of the steel pipe;

[0026] S3: The steel pipe is sent into the sliding block, and the steel pipe that has been slightly cooled during transportation is reheated by the electric heating wire;

[0027] S4: The steel pipe is then fed into the bending area along the feed roller, the bottom wheel and the top wheel according to the path planned in S1, and then rolled and bent by the first guide wheel and the second guide wheel.

[0028] The technical effects achieved by the present invention are:

[0029] The feeding component, bending component 1, bending component 2, and simulation component of the present invention can adjust the path of the steel pipe and the size of the bending area according to the curvature of the steel pipe bending and the diameter of the steel pipe, and indicate the path after the adjustment. Before bending, the specific positions of the moving component, the clamping component, and the positioning component are adjusted according to the curvature requirements of the steel pipe bending. After the adjustment, the path is projected on the display component of the simulation component through the light-emitting component of the simulation component, thereby prompting the bending path of the steel pipe, and performing precise regulation according to the requirements. At the same time, the spacing between the regulating component and the lifting component is adjusted to adapt to steel pipes of different widths and sizes, thereby improving applicability.

[0030] The filling component of the present invention can automatically fill the stretched area when adjusting the size of the feeding area, so as to prevent the arc surface in contact from being too pitted during the lever feeding, thereby causing the steel pipe to be deformed; before the steel pipe is fed, the moving component will be raised and lowered according to demand to adjust the height of the steel pipe feeding place, and when the moving component is raised and lowered, the moving part of the filling component will be pulled up and down together, so that the arc surface of the filling component is pulled up to adapt to the higher steel pipe, and when the filling component is raised, the filling parts inside it will automatically extend to fill the vacancy generated when the moving component is raised, so as to prevent the arc surface from being too pitted, thereby causing the surface deformation of the steel pipe and affecting the product quality;

[0031] The moving component of the present invention can reheat the steel pipe that has cooled slightly during the movement before the steel pipe is bent to improve its plasticity. When the steel pipe enters the moving component and waits to be bent, the heating component inside the moving component will bake and reheat the steel pipe to improve its plasticity. In the subsequent bending process, the speed of the steel pipe movement can be adjusted to control the reheating time of the steel pipe to improve its plasticity and facilitate subsequent bending operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the main components of the present invention;

[0034] Figure 3 It is a schematic structural diagram of the feed assembly in the present invention;

[0035] Figure 4 is a schematic diagram of the position of the expansion components in the present invention;

[0036] Figure 5 It is a position relationship diagram of the lifting frame and the lifting block in the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the filling component in the present invention;

[0038] Figure 7 It is a schematic diagram of the disassembly of the filling component in the present invention;

[0039] Figure 8 is a cross-sectional schematic diagram of a filling component in the present invention;

[0040] Fig. 9 It is a schematic diagram of the position of the chute in the present invention;

[0041] Fig.10 It is a schematic diagram of the positions of the bending component 1 and the bending component 2 in the present invention;

[0042] Fig.11 is a schematic structural diagram of the clamping assembly in the present invention;

[0043] Fig.12 It is a schematic diagram of the structure of the regulatory component in the present invention;

[0044] Fig.13 It is a schematic diagram of the splitting of the regulatory components in the present invention;

[0045] Fig.14 It is a structural schematic diagram of the positioning component in the present invention;

[0046] Fig.15 It is a cross-sectional schematic diagram of the lifting assembly in the present invention.

[0047] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0048] 10. Main assembly; 11. Machine body; 12. Bracket; 13. Stepping screw; 14. Simulation assembly; 141. Display board; 142. Laser light; 20. Feed assembly; 21. Moving assembly; 211. Sliding block; 212. Lifting block; 213. Feeding roller; 214. Lifting block; 215. First lifting screw; 216. Heating wire; 22. Expansion assembly; 221. Moving frame; 222. Lifting frame; 223. First bidirectional screw; 23. Filling assembly; 231. Bottom wheel; 232. Top wheel; 233. Storage tube; 234. Filling strip ; 235, slide groove; 236, electromagnetic plate; 30, bending component one; 31, clamping component; 311, middle frame; 312, mounting frame; 313, second lifting screw; 314, first guide wheel; 32, regulating component; 321, moving ring; 322, second bidirectional screw; 323, limiting ring; 40, bending component two; 41, positioning component; 411, right side frame; 412, mounting block; 413, second guide wheel; 414, third bidirectional screw; 42, lifting component; 421, cross slot; 422, lifting ring; 423, third lifting screw. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0050] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0051] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0052] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0053] Example 1

[0054] Please see attached Figure 1-Figure 15 As shown, it is the first embodiment of the present invention, which provides an automatic bending device, including: a main component 10, the main component 10 includes a body 11, a bracket 12 is fixedly connected to the top left side of the body 11, and a simulation component 14 is arranged below the body 11;

[0055] The feeding assembly 20 includes a moving assembly 21 disposed on the bracket 12, an expansion assembly 22 is disposed at the bottom of the moving assembly 21, and a filling assembly 23 is disposed at the inner circle of the expansion assembly 22;

[0056] The bending assembly 1 30 includes a clamping assembly 31 disposed in the middle of the top surface of the body 11, and a regulating assembly 32 is disposed inside the clamping assembly 31;

[0057] The second bending assembly 40 includes a positioning assembly 41 disposed on the top surface of the body 11, and a lifting assembly 42 is disposed on the top of the positioning assembly 41;

[0058] Among them, the steel pipe to be bent enters the moving component 21 for preheating, and the expansion component 22 and the filling component 23 adjust the size of the internal channel according to the width of the steel pipe. At this time, the bending component 1 30 and the bending component 2 40 are also adjusted together through the regulating component 32 and the lifting component 42;

[0059] The moving component 21, the clamping component 31 and the positioning component 41 are used to adjust the bending path of the steel pipe and are displayed on the simulation component 14;

[0060] A stepping screw 13 is disposed at the bottom of the bracket 12 for driving the moving assembly 21 to move.

[0061] It should be noted that a plurality of strip grooves are provided on the bottom surface of the body 11 , so as to facilitate the sliding of the light-emitting components of the simulation component 14 on the bottom surface of the body 11 .

[0062] In this embodiment, before bending, the positions of the moving component 21, the clamping component 31 and the positioning component 41 are adjusted according to the curvature of the steel pipe bending, so as to adjust the path of the steel pipe when bending according to the curvature. At the same time, the nodes of the path will be projected through the light-emitting components of the simulation component 14 for the staff to observe. Afterwards, according to the width of the steel pipe, the width and height of the expansion component 22 and the filling component 23 are adjusted, as well as the width and height of the control component 32 and the lifting component 42 to adapt to steel pipes of different widths and improve applicability. Before the steel pipe waits for bending, the steel pipe can be reheated by the moving component 21 to improve the plasticity of the steel pipe.

[0063] Next, please refer to Fig.10 The simulation component 14 includes a display board 141 fixedly connected to the bottom of the body 11, and a laser light 142 is fixedly connected below the moving component 21, the clamping component 31 and the positioning component 41, and the laser light 142 is slidably connected to the bottom surface of the body 11.

[0064] It should be noted that the display board 141 is provided with indicator structures such as scale bars (not shown in the figure) for the purpose of accurately controlling the bending path of the steel pipe.

[0065] In this embodiment, after the moving assembly 21, the clamping assembly 31 and the positioning assembly 41 have adjusted the bending path of the steel pipe, the laser light 142 will project the nodes of the bending path of the steel pipe onto the display board 141 through laser, forming a clearly visible bending path diagram. The staff can ensure that the steel pipe moves along the correct path during the bending process by observing these projected nodes, thereby ensuring the bending accuracy.

[0066] Next, please refer to Figure 2-Figure 4The moving component 21 includes a sliding block 211 slidably connected to the left side of the top surface of the body 11, a lifting block 212 is slidably connected to the top of the sliding block 211, the right side of the lifting block 212 and the right side of the sliding block 211 are both rotatably connected to a feeding roller 213, the top of the sliding block 211 is slidably connected to a landing block 214, the inner cavity of the landing block 214 is threadedly connected to a first landing screw 215, the first landing screw 215 is rotatably connected to the top of the bracket 12, and an electric heating wire 216 is fixedly connected to the inner cavity of the sliding block 211.

[0067] It should be noted that a plurality of vertical rods are arranged on the top of the sliding block 211, and the lifting block 212 is slidably connected to the outer ring of the vertical rods, and the landing block 214 cannot contact the vertical rods and the sliding block 211, so that the lifting block 212 can be driven to move by the sliding block 211, and can also be pulled up and down by the landing block 214;

[0068] The feed roller 213 is driven by an external motor (not shown in the figure), which is a common technology in this field and will not be described in detail.

[0069] In this embodiment, when adjusting the path, the position of the sliding block 211 is adjusted by rotating the stepping screw 13. When the height of the feeding area needs to be adjusted, the height of the landing block 214 is adjusted by rotating the first lifting screw 215, so that the distance between the upper and lower sets of feeding rollers 213 is increased to accommodate higher steel pipes. When the steel pipe is waiting to be bent, the electric heating wire 216 can be used to reheat the steel pipe to improve plasticity.

[0070] Next, please refer to Figure 3-Figure 9 The expansion assembly 22 includes a moving frame 221 slidably connected to the right side of the sliding block 211, the inner cavity of the moving frame 221 is slidably connected to the lifting frame 222, the right bottom of the sliding block 211 is rotatably connected to the first bidirectional screw rod 223, and the bottom of the moving frame 221 is threadedly connected to the outer ring of the first bidirectional screw rod 223;

[0071] The filling assembly 23 includes a bottom wheel 231 rotatably connected to the top right side of the moving frame 221, the inner cavity of the bottom wheel 231 is slidably connected to the top wheel 232, the top wheel 232 is rotatably connected to the right bottom surface of the lifting frame 222, the inner cavities of the top wheel 232 and the bottom wheel 231 are fixedly connected to the storage tube 233, the inner cavity of the storage tube 233 is slidably connected to the filling strip 234, the bottom of the filling strip 234 is provided with a slide groove 235, the tops of adjacent filling strips 234 are slidably connected in the slide groove 235, the rear side of the inner cavity of the storage tube 233 is fixedly connected to the electromagnetic plate 236, and the electromagnetic plate 236 is arranged at the rear end of the filling strip 234.

[0072] It should be noted that a magnetic block is provided on the rear side of the filling strip 234, and the electromagnetic plate 236 is a device with adjustable NS poles, which is intended to utilize the principle of mutual repulsion of like poles to push out the filling strip 234 at the appropriate time, and can also absorb and retract the filling strip 234 according to needs to avoid affecting the descent of the top wheel 232;

[0073] The bottom wheel 231 and the top wheel 232 are both driven by external motors (not shown in the figure). This is a common technology in this field and will not be described in detail.

[0074] In this embodiment, when adjusting the width of the feeding area, the spacing between the front and rear groups of moving frames 221 is adjusted by rotating the first bidirectional screw rod 223 to adjust the width of the feeding area. When adjusting the height, the rising landing block 214 will pull the lifting frame 222 and the top wheel 232 up together. At this time, a gap will be generated between the rising top wheel 232 and the bottom wheel 231. Then the electromagnetic plate 236 will turn the NS pole and use the principle of mutual repulsion of like poles to push the filling strip 234 out to fill the gap between the top wheel 232 and the bottom wheel 231 to avoid the gap being too large to cause potholes on the arc surface, causing the outer surface of the steel pipe to deform and affect the product quality. When the top wheel 232 descends, the electromagnetic plate 236 will turn again to suck the filling strip 234 into the storage tube 233 to avoid affecting the descent of the top wheel 232.

[0075] Please refer again Figure 11-13 The clamping assembly 31 includes a middle frame 311 slidably connected to the middle part of the top surface of the machine body 11, the inner cavity of the middle frame 311 is slidably connected to the mounting frame 312, the top of the mounting frame 312 is rotatably connected to the second lifting screw 313, the top of the second lifting screw 313 is threadedly connected to the top of the middle frame 311, and the middle of the inner cavity of the middle frame 311 and the mounting frame 312 are both rotatably connected to the first guide wheel 314;

[0076] The regulating component 32 includes a movable ring 321 slidably connected to the bottom of the inner cavity of the middle frame 311, and the bottom of the middle frame 311 is rotatably connected to a second bidirectional screw rod 322, the outer ring of the second bidirectional screw rod 322 is threadedly connected to the bottom of the movable ring 321, and the inner ring of the movable ring 321 is rotatably connected to a limit ring 323, and the limit ring 323 is slidably connected to the outer ring of the first guide wheel 314.

[0077] It should be noted that the bottom of the middle frame 311 is threadedly connected with a threaded rod for driving the middle frame 311 to move; and the first guide wheel 314 is driven by an external motor (not shown in the figure), which is a common technology in this field and will not be described in detail.

[0078] In this embodiment, before bending, the height of the mounting frame 312 can be adjusted by rotating the second lifting screw 313 according to the width of the steel pipe, thereby adjusting the spacing between the upper and lower sets of first guide wheels 314 to accommodate different types of steel pipes. At the same time, the second bidirectional screw 322 can also be rotated to drive the front and rear sets of movable rings 321 to move, thereby adjusting the spacing between the limit rings 323 and the width to accommodate different types of steel pipes.

[0079] Please refer again Figure 14-15 The positioning assembly 41 includes a right side frame 411 slidably connected to the right side of the machine body 11, a mounting block 412 is slidably connected to the bottom of the inner cavity of the right side frame 411, a second guide wheel 413 is provided on the top of the mounting block 412, a third bidirectional screw rod 414 is rotatably connected to the middle of the right side frame 411, and an outer ring of the third bidirectional screw rod 414 is threadedly connected to the bottom of the mounting block 412;

[0080] The lifting assembly 42 includes a cross groove 421 opened at the top of the second guide wheel 413, the inner cavity of the cross groove 421 is slidably connected to the lifting ring 422, the top of the lifting ring 422 is rotatably connected to the third lifting screw 423, and the top of the third lifting screw 423 is threadedly connected to the top of the second guide wheel 413.

[0081] It should be noted that the bottom of the right side frame 411 is threadedly connected with a threaded rod for driving the right side frame 411 to move; and the second guide wheel 413 is driven by an external motor (not shown in the figure), which is a common technology in this field and will not be described in detail;

[0082] The height of the lifting ring 422 is greater than the height of the cross groove 421, and when the lifting ring 422 is raised to the top of the cross groove 421, the bottom of the cross groove 421 will still be covered by the lifting ring 422, in order to prevent the surface of the cross groove 421 from being exposed and having pits, which would affect the quality of the steel pipe bending.

[0083] In this embodiment, when adjusting the width and height, the distance between the front and rear sets of mounting blocks 412 can be adjusted by rotating the third bidirectional screw rod 414 to adjust the width. At the same time, the height of the lifting ring 422 can be adjusted by rotating the third lifting screw rod 423 to adjust the distance between the lifting ring 422 and the bottom of the second guide wheel 413, thereby adjusting the height.

[0084] Example 2

[0085] This embodiment provides a high-precision steel pipe bending process, which is applied to any of the above automatic bending equipment, including:

[0086] S1: adjusting the positions of the sliding block 211, the middle frame 311 and the right frame 411 according to the curvature of the steel pipe to be bent, and projecting the adjusted positions on the display board 141 through the laser light 142 to display the bending path of the steel pipe, and adjusting multiple times according to the needs until reaching the designated position;

[0087] S2: The width of the feeding area is adjusted by adjusting the distance between the front and rear two sets of moving frames 221 and the bottom wheel 231 and the top wheel 232 according to the width of the steel pipe, and the height of the feeding area is adjusted by stretching the bottom wheel 231 and the top wheel 232; at the same time, the distance between the front and rear two sets of limiting rings 323, and the second guide wheel 413 and the lifting ring 422 are adjusted to control the width and height of the bending area to adapt to the size of the steel pipe;

[0088] S3: The steel pipe is sent into the sliding block 211, and the steel pipe that has been slightly cooled during transportation is reheated by the electric heating wire 216;

[0089] S4: The steel pipe is then fed into the bending area along the feeding roller 213, the bottom wheel 231 and the top wheel 232 according to the path planned in S1, and then rolled and bent by the first guide wheel 314 and the second guide wheel 413.

[0090] In this embodiment, the height and width of the bending area are controlled to limit the steel pipe during bending to prevent the steel pipe from shifting during processing, resulting in a reduced yield. According to the process of S3, the speed of steel pipe transportation can be controlled during the steel pipe bending process so that the steel pipe can be reheated more to improve plasticity and make the steel pipe bend more evenly.

[0091] The working principle of the present invention is as follows: before bending, the positions of the sliding block 211, the middle frame 311 and the right frame 411 are adjusted according to the curvature of the steel pipe bending, and the nodes of the steel pipe bending path are projected onto the display board 141 by laser through the laser lamp 142 to form a clearly visible bending path diagram, and then the height of the landing block 214 is adjusted to increase the spacing between the upper and lower groups of feeding rollers 213 to adapt to higher steel pipes. When the steel pipe is waiting to be bent, the steel pipe can be reheated by the electric heating wire 216 to improve the plasticity, and the rising landing block 214 will pull the lifting frame 222 and the top wheel 232 to rise together, and then the electromagnetic plate 236 will run to turn the NS pole, push the filling strip 234 to extend, and fill the gap between the top wheel 232 and the bottom wheel 231. At the same time, the spacing between the front and rear groups of moving frames 221 can be adjusted by rotating the first bidirectional screw rod 223 to adjust the width of the feeding area. In the bending area, the spacing between the upper and lower sets of first guide wheels 314 can be adjusted by rotating the second lifting screw 313, and the second bidirectional screw 322 can be rotated to drive the front and rear sets of moving rings 321 to move, thereby adjusting the spacing of the limit ring 323, so as to adapt to different types of steel pipes, and the spacing between the front and rear sets of mounting blocks 412 can be adjusted by rotating the third bidirectional screw 414, and the spacing between the lifting ring 422 and the bottom of the second guide wheel 413 can be adjusted by rotating the third lifting screw 423, so as to adapt to different types of steel pipes. Then, the steel pipe is transported by the feeding roller 213, and the path planning of the first guide wheel 314 and the second guide wheel 413 is carried out according to the prescribed path for moving and bending.

[0092] The above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the art unless otherwise specified and limited.

Claims

1. An automatic bending device, characterized in that: include: A main body component (10), the main body component (10) comprising a body (11), a bracket (12) being fixedly connected to the left side of the top of the body (11), and a simulation component (14) being arranged below the body (11); A feeding assembly (20), the feeding assembly (20) comprising a moving assembly (21) arranged on a bracket (12), an expansion assembly (22) being arranged at the bottom of the moving assembly (21), and a filling assembly (23) being arranged at the inner ring of the expansion assembly (22); A bending component (30), the bending component (30) comprising a clamping component (31) arranged in the middle of the top surface of the body (11), and a regulating component (32) is arranged inside the clamping component (31); A second bending assembly (40), the second bending assembly (40) comprising a positioning assembly (41) arranged on the top surface of the machine body (11), a lifting assembly (42) being arranged on the top of the positioning assembly (41); The steel pipe to be bent enters the moving component (21) for preheating, and the expansion component (22) and the filling component (23) adjust the size of the internal channel according to the width of the steel pipe. At this time, the bending component 1 (30) and the bending component 2 (40) are also adjusted together through the regulating component (32) and the lifting component (42); The moving component (21), the clamping component (31) and the positioning component (41) are used to adjust the bending path of the steel pipe and are displayed on the simulation component (14); Wherein, a stepping screw (13) is provided at the bottom of the bracket (12) for driving the moving component (21) to move; The simulation component (14) comprises a display board (141) fixedly connected to the bottom of the body (11); a laser light (142) is fixedly connected below the moving component (21), the clamping component (31) and the positioning component (41); and the laser light (142) is slidably connected to the bottom surface of the body (11); The expansion component (22) comprises a moving frame (221) slidably connected to the right side of the sliding block (211); the inner cavity of the moving frame (221) is slidably connected to a lifting frame (222); the bottom right side of the sliding block (211) is rotatably connected to a first bidirectional screw rod (223); the bottom of the moving frame (221) is threadedly connected to the outer ring of the first bidirectional screw rod (223); The filling assembly (23) comprises a bottom wheel (231) rotatably connected to the top right side of the moving frame (221); the inner cavity of the bottom wheel (231) is slidably connected to a top wheel (232); the top wheel (232) is rotatably connected to the bottom surface of the right side of the lifting frame (222); the inner cavities of the top wheel (232) and the bottom wheel (231) are both fixedly connected to a storage tube (233); the inner cavity of the storage tube (233) is slidably connected to a filling strip (234); a sliding groove (235) is provided at the bottom of the filling strip (234); the tops of adjacent filling strips (234) are slidably connected in the sliding groove (235); an electromagnetic plate (236) is fixedly connected to the rear side of the inner cavity of the storage tube (233); the electromagnetic plate (236) is arranged at the rear end of the filling strip (234).

2. The automatic bending device according to claim 1, characterized in that: The moving assembly (21) comprises a sliding block (211) slidably connected to the left side of the top surface of the machine body (11); the top of the sliding block (211) is slidably connected to a lifting block (212); the right side of the lifting block (212) and the right side of the sliding block (211) are both rotatably connected to a feeding roller (213); the top of the sliding block (211) is slidably connected to a lifting block (214); the inner cavity of the lifting block (214) is threadedly connected to a first lifting screw (215); the first lifting screw (215) is rotatably connected to the top of the bracket (12); and the inner cavity of the sliding block (211) is fixedly connected to an electric heating wire (216).

3. The automatic bending device according to claim 2, characterized in that: The clamping assembly (31) comprises a middle frame (311) slidably connected to the middle part of the top surface of the machine body (11); the inner cavity of the middle frame (311) is slidably connected to a mounting frame (312); the top of the mounting frame (312) is rotatably connected to a second lifting screw (313); the top of the second lifting screw (313) is threadedly connected to the top of the middle frame (311); and the middle parts of the inner cavities of the middle frame (311) and the mounting frame (312) are both rotatably connected to a first guide wheel (314).

4. The automatic bending device according to claim 3, characterized in that: The regulating component (32) comprises a moving ring (321) slidably connected to the bottom of the inner cavity of the middle frame (311); the bottom of the middle frame (311) is rotatably connected to a second bidirectional screw rod (322); the outer ring of the second bidirectional screw rod (322) is threadedly connected to the bottom of the moving ring (321); the inner ring of the moving ring (321) is rotatably connected to a limit ring (323); and the limit ring (323) is slidably connected to the outer ring of the first guide wheel (314).

5. The automatic bending device according to claim 4, characterized in that: The positioning assembly (41) comprises a right side frame (411) slidably connected to the right side of the machine body (11); a mounting block (412) is slidably connected to the bottom of the inner cavity of the right side frame (411); a second guide wheel (413) is arranged on the top of the mounting block (412); a third bidirectional screw rod (414) is rotatably connected to the middle of the right side frame (411); and an outer ring of the third bidirectional screw rod (414) is threadedly connected to the bottom of the mounting block (412).

6. The automatic bending device according to claim 5, characterized in that: The lifting assembly (42) comprises a cross groove (421) formed on the top of the second guide wheel (413); a lifting ring (422) is slidably connected to the inner cavity of the cross groove (421); a third lifting screw (423) is rotatably connected to the top of the lifting ring (422); and the top of the third lifting screw (423) is threadedly connected to the top of the second guide wheel (413).

7. A high-precision steel pipe bending process, characterized in that: The automatic bending device as described in claim 6 above comprises: S1: adjusting the positions of the sliding block (211), the middle frame (311) and the right frame (411) according to the curvature of the steel pipe to be bent, and projecting the adjusted positions onto the display board (141) through the laser light (142) to display the bending path of the steel pipe, and adjusting multiple times according to needs until reaching the designated position; S2: adjusting the distance between the front and rear two sets of moving frames (221) and the bottom wheel (231) and the top wheel (232) according to the width of the steel pipe to adjust the width of the feeding area, and adjusting the height of the feeding area by stretching the bottom wheel (231) and the top wheel (232); and at the same time adjusting the distance between the front and rear two sets of limiting rings (323) and the second guide wheel (413) and the lifting ring (422) to control the width and height of the bending area to adapt to the size of the steel pipe; S3: sending the steel pipe into the sliding block (211), and reheating the steel pipe that has been slightly cooled during transportation through the electric heating wire (216); S4: The steel pipe is then fed into the bending area along the feeding roller (213), the bottom wheel (231) and the top wheel (232) according to the path planned in S1, and then rolled and bent by the first guide wheel (314) and the second guide wheel (413).

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