Bending equipment for automobile airflow pipe

Abstract

The invention discloses bending equipment for an automobile airflow pipe, and belongs to the technical field of automobile production, the bending equipment comprises a main body module and an adjusting adaptation module, the main body module comprises a main body frame, the main body frame is connected with a supporting frame, and the adjusting adaptation module comprises a driving assembly arranged between the main body frame and the supporting frame; a plurality of right-angle triangular plates are connected to the driving assembly, the multiple right-angle triangular plates are averagely divided into two groups, the two groups of right-angle triangular plates are symmetrically arranged, and through the arrangement of the driving assembly, the lifting assembly, the displacement assembly, the pressing wheel, the rack, the connecting assembly and the right-angle triangular plates, the equipment can conduct bending of various radians; and meanwhile, the distance and the height of the pressing wheels are automatically adjusted according to different bending conditions, all the components can be matched with one another, only the driving assembly needs to be controlled, bending of different radians can be conducted through the equipment, overall operation is more convenient, and the functionality of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile production, and more specifically, to a bending device for an automobile air duct. Background Art

[0002] An automobile air duct generally refers to an automobile intake pipe or an air guide pipe. In a gasoline engine, the intake pipe needs to consider issues such as atomization, evaporation, distribution of combustion, and utilization of pressure waves to ensure that fuel and air can be fully mixed, achieve more efficient combustion, improve the power output and fuel economy of the engine. And during the production process of the automobile air duct, bending operations are required, so bending devices need to be used for the operations.

[0003] According to the search, a patent with the patent number CN117225947A discloses a bending device. For the above related technologies, it has: a push rod; a wheel provided at the front end of the push rod, with a wheel groove portion formed for clamping the coated pipe during bending; and a pair of left and right roller portions for supporting the coated pipe during bending. The wheel groove portion has: a first wheel groove portion formed in a conical shape; and a second wheel groove portion having a connection groove portion connected to the first wheel groove portion, and the width of the connection groove portion is greater than the outer diameter of the pipe included in the coated pipe.

[0004] For the above related technologies, the bending devices in the prior art are usually in the above state. The traditional bending device has a simple structure and can only perform pipe bending operations with a single radian. If it is necessary to process bends at different angles, it is often only possible to achieve this by replacing specific components or the entire set of equipment, and the operation process is complex and time-consuming. Although some numerical control bending devices can achieve multi-angle bending, the parameter adjustment relies on cumbersome control panel operations, which not only requires high professional skills from the operators, but also has high equipment procurement and maintenance costs, resulting in great obstacles to its popular application in actual production. In view of the need for diverse bending angles during the production process of the air duct, a bending device for an automobile air duct is proposed accordingly. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a bending device for an automobile air duct, adopting the following technical solutions:

[0006] A bending device for an automobile air flow pipe, comprising a main body module and an adjustment and adaptation module. The main body module includes a main body frame, and a support frame is connected to the main body frame. The adjustment and adaptation module includes a driving component arranged between the main body frame and the support frame. A plurality of right-angled triangular plates are connected to the driving component. The plurality of right-angled triangular plates are evenly divided into two groups. The two groups of right-angled triangular plates are symmetrically arranged and are annularly staggered. A lifting component is arranged on the rear end face of the main body frame. A rack and two displacement components are arranged on the lifting component. Both of the two displacement components are connected to the rack. Pressing wheels are rotatably connected to both of the two displacement components. An engagement component is arranged between the rear end face of the main body frame and the driving component. The engagement component is connected to the lifting component. A pressing component is fixedly connected to the upper part of the main body frame. The pressing component is located between the two groups of right-angled triangular plates. Two heating components are arranged on the pressing component.

[0007] Further, the driving component includes a fixed pipe fixedly connected between the rear end face of the main body frame and the support frame. A first bidirectional screw rod is rotatably connected between the rear end face of the main body frame and the support frame. The first bidirectional screw rod is located inside the fixed pipe. Two moving grooves are formed on the outer surface of the fixed pipe. Two moving circular plates are slidably connected between the two moving grooves. Both of the two moving circular plates are threadedly connected to the first bidirectional screw rod. The two groups of right-angled triangular plates are respectively fixedly connected to the adjacent faces of the two moving circular plates. A driving motor is fixedly connected to the rear end face of the main body frame. The output shaft of the driving motor is fixedly connected to one end of the first bidirectional screw rod.

[0008] Further, the lifting component includes two lifting grooves both formed on the rear end face of the main body frame. Cylinders are installed inside both of the two lifting grooves. Lifting plates are slidably connected inside both of the two lifting grooves. The bottoms of the two lifting plates are respectively fixedly connected to the output shafts of the two cylinders. A limiting rod is fixedly connected between the two lifting plates. A second bidirectional screw rod is rotatably connected between the two lifting plates. The rack is fixedly connected between the two lifting plates.

[0009] Further, the displacement component includes a displacement plate slidably connected to the outer surface of the limiting rod. The inside of the displacement plate is threadedly connected to the outer surface of the second bidirectional screw rod. A first sleeve is fixedly connected to the bottom of the displacement plate. A first inner sliding rod is movably connected inside the first sleeve. A first lifting screw rod is rotatably connected inside the displacement plate. The outer surface of the first lifting screw rod is threadedly connected to the inside of the first inner sliding rod. The pressing wheel is rotatably connected to the bottom end of the first inner sliding rod.

[0010] Furthermore, the displacement component further includes a first small gear fixedly connected to the top end of the first lifting screw rod. A large gear is rotatably connected to the top of the displacement plate. The outer surface of the large gear meshes with the outer surface of the first small gear. A second small gear is fixedly connected to the top of the large gear. The outer surface of the second small gear meshes with the outer surface of the rack.

[0011] Furthermore, the connection component includes a fixing plate fixedly connected to the rear end face of the inner wall of the main body frame. An inner rotating column is rotatably connected inside the fixing plate. A clamping groove is formed at one end of the second bidirectional screw rod. A clamping block is movably connected inside the clamping groove. The clamping block is fixedly connected to one end of the inner rotating column.

[0012] Furthermore, the connection component further includes a long rod rotatably connected to the rear end face of the main body frame. A transmission roller is fixedly connected to the outer surface of one end of the long rod and the output shaft of the driving motor. A transmission belt is connected between the outer surfaces of the two transmission rollers. A bevel gear is fixedly connected to the other end of the long rod and the other end of the inner rotating column. The outer surfaces of the two bevel gears mesh with each other.

[0013] Furthermore, the pressing component includes a fixing seat fixedly connected to the upper part of the main body frame. A second sleeve is fixedly connected to the bottom of the fixing seat. A second inner sliding rod is movably connected inside the second sleeve. A second lifting screw rod is rotatably connected inside the fixing seat. The outer surface of the second lifting screw rod is bolted to the inside of the second inner sliding rod. A steering wheel is fixedly connected to the top end of the second lifting screw rod. A pressing groove is formed at the bottom end of the second inner sliding rod.

[0014] Furthermore, the heating component includes a mounting rod fixedly connected to the outer surface of the second inner sliding rod. An air pipe is fixedly connected to one end of the mounting rod. A plurality of nozzles are fixedly connected to the outer surface of the air pipe. A connecting hose is fixedly connected to one end of the air pipe.

[0015] Furthermore, the heating component further includes a wind box fixedly connected to the outer surface of the fixing seat. The hose is connected to the wind box. A blower is fixedly connected to the outer surface of the wind box. A plurality of heating wires are installed inside the wind box.

[0016] In summary, the present invention includes the following beneficial technical effects:

[0017] (1) Through the setting of the driving component, the lifting component, the displacement component, the pressing wheel, the rack, the connection component and the right-angled triangle plate, the present device can perform bending with various radian values, and automatically adjust the distance and height of the pressing wheel according to different bending situations. Each component can cooperate with each other, and only the driving component needs to be controlled, so that the present device can perform bending with different radian values, the overall operation is more convenient, and the functionality of the device is improved;

[0018] (2) Through the settings of the heating wire, the blower and the nozzle, the present invention enables preheating of the air flow pipe before bending, thus significantly reducing the bending difficulty of hard materials (such as stainless steel and aluminum alloy), and at the same time reducing problems such as material stress, cracks or springback caused by cold bending, and improving the bending effect.

[0019] (3) Through the setting of the pressing component, the present invention enables fixing of the air flow pipe, making it more stable during bending and avoiding changes in the bending position due to shaking during bending. Description of the Drawings

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the overall structural schematic diagram of the adjustment and adaptation module of the present invention;

[0022] Figure 3 is the structural schematic diagram of the connection component of the present invention;

[0023] Figure 4 is the sectional structural schematic diagram of the drive component of the present invention;

[0024] Figure 5 is the sectional structural schematic diagram of the displacement component of the present invention;

[0025] Figure 6 is of the present invention Figure 5 magnified structural schematic diagram at position A;

[0026] Figure 7 is of the present invention Figure 5 magnified structural schematic diagram at position B;

[0027] Figure 8 is the structural schematic diagram of the heating component of the present invention;

[0028] Figure 9 is the sectional structural schematic diagram of the pressing component of the present invention.

[0029] Explanation of the reference numerals in the figures:

[0030] 100, main body module; 110, main body frame; 120, support frame;

[0031] 200. Adjustment and adaptation module; 210. Driving component; 211. Fixed pipe; 212. First bidirectional lead screw; 213. Moving circular plate; 214. Driving motor; 220. Lifting component; 221. Cylinder; 222. Lifting plate; 223. Limit rod; 224. Second bidirectional screw; 230. Displacement component; 231. Displacement plate; 232. First sleeve; 233. First inner sliding rod; 234. First lifting screw; 235. First pinion; 236. Large gear; 237. Second pinion; 240. Pressing wheel; 250. Rack; 260. Connection component; 261. Fixed plate; 262. Inner rotating column; 263. Block; 264. Long rod; 265. Transmission roller; 266. Transmission belt; 267. Bevel gear; 268. Card slot; 270. Right-angled triangle plate; 280. Pressing component; 281. Fixed seat; 282. Second sleeve; 283. Second inner sliding rod; 284. Second lifting screw; 285. Rudder;

[0032] 290. Heating component; 291. Mounting rod; 292. Air pipe; 293. Nozzle; 294. Air box; 295. Fan; 296. Heating wire. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The following will further elaborate on the present invention in conjunction with the appended Figures 1-9 drawings.

[0037] Please refer to Figures 1-9 , a bending device for an automobile air duct, comprising a main body module 100 and an adjustment and adaptation module 200. The main body module 100 includes a main body frame 110, and a support frame 120 is connected to the main body frame 110. The adjustment and adaptation module 200 includes a driving component 210 arranged between the main body frame 110 and the support frame 120. A plurality of right-angled triangular plates 270 are connected to the driving component 210. The plurality of right-angled triangular plates 270 are evenly divided into two groups. The two groups of right-angled triangular plates 270 are symmetrically arranged and are annularly staggered. A lifting component 220 is arranged on the rear end face of the main body frame 110. A rack 250 and two displacement components 230 are arranged on the lifting component 220. Both of the two displacement components 230 are connected to the rack 250. Pressing wheels 240 are rotatably connected to both of the two displacement components 230. A connection component 260 is arranged between the rear end face of the main body frame 110 and the driving component 210. The connection component 260 is connected to the lifting component 220. A pressing component 280 is fixedly connected to the upper part of the main body frame 110. The pressing component 280 is located between the two groups of right-angled triangular plates 270. Two heating components 290 are arranged on the pressing component 280.

[0038] During use, the air flow pipe that needs to be operated is placed in the middle of two sets of right-angled triangular plates 270 and between two pressing wheels 240. Rotate the pressing component 280 to fix the air flow pipe. After fixation, turn on the heating component 290, and the heating component 290 will heat the pipe, thereby improving the subsequent bending effect. Turn on the lifting component 220 to drive the two displacement components 230 and the pressing wheels 240 to descend. At this time, the lifting component 220 is separated from the connecting component 260, so that the two pressing wheels 240 press the air flow pipe, and the air flow pipe will fit the middle of the two sets of right-angled triangular plates 270, thereby bending the air flow pipe. After bending, the lifting component 220 drives the pressing wheels 240 to lift again. At this time, the connecting component 260 is reconnected to the lifting component 220. When it is necessary to adjust the bending arc, the staff turns on the driving component 210, and the driving component 210 will drive the two sets of right-angled triangular plates 270 to be inserted into each other, so that the circumference of the middle part where the two sets of right-angled triangular plates 270 are inserted gradually increases. At the same time, the driving component 210 drives the connecting component 260, and the connecting component 260 drives the lifting component 220 to drive the two displacement components 230. The two displacement components 230 will adjust the distance according to the insertion of the two sets of right-angled triangular plates 270. At the same time, the displacement components 230 are driven by the rack 250, so as to adjust the height of the pressing wheels 240, so as to automatically adjust the distance and height of the pressing wheels 240 according to different bending situations. Each component can cooperate with each other, and only the driving component 210 needs to be controlled, so that this equipment can perform bending with different arcs, and the overall operation is more convenient.

[0039] The driving assembly 210 includes a fixed pipe 211 fixedly connected between the rear end face of the main body frame 110 and the support frame 120. A first bidirectional lead screw 212 is rotatably connected between the rear end face of the main body frame 110 and the support frame 120. The first bidirectional lead screw 212 is located inside the fixed pipe 211. Two movable grooves are formed on the outer surface of the fixed pipe 211. Two movable circular plates 213 are slidably connected between the two movable grooves. Both of the two movable circular plates 213 are threadedly connected to the first bidirectional lead screw 212. Two groups of right-angled triangular plates 270 are respectively fixedly connected to the adjacent faces of the two movable circular plates 213. A driving motor 214 is fixedly connected to the rear end face of the main body frame 110. The output shaft of the driving motor 214 is fixedly connected to one end of the first bidirectional lead screw 212. The lifting assembly 220 includes two lifting grooves both formed on the rear end face of the main body frame 110. Cylinders 221 are installed inside the two lifting grooves. Lifting plates 222 are slidably connected inside the two lifting grooves. The bottoms of the two lifting plates 222 are respectively fixedly connected to the output shafts of the two cylinders 221. A limiting rod 223 is fixedly connected between the two lifting plates 222. A second bidirectional screw 224 is rotatably connected between the two lifting plates 222. A rack 250 is fixedly connected between the two lifting plates 222. The displacement assembly 230 includes a displacement plate 231 slidably connected to the outer surface of the limiting rod 223. The inside of the displacement plate 231 is threadedly connected to the outer surface of the second bidirectional screw 224. A first sleeve 232 is fixedly connected to the bottom of the displacement plate 231. A first inner sliding rod 233 is movably connected inside the first sleeve 232. A first lifting screw 234 is rotatably connected inside the displacement plate 231. The outer surface of the first lifting screw 234 is threadedly connected to the inside of the first inner sliding rod 233. A pressing wheel 240 is rotatably connected to the bottom end of the first inner sliding rod 233. The displacement assembly 230 further includes a first small gear 235 fixedly connected to the top end of the first lifting screw 234. A large gear 236 is rotatably connected to the top of the displacement plate 231. The outer surface of the large gear 236 is meshed with the outer surface of the first small gear 235. A second small gear 237 is fixedly connected to the top of the large gear 236. The outer surface of the second small gear 237 is meshed with the outer surface of the rack 250. The connection assembly 260 includes a fixing plate 261 fixedly connected to the rear end face of the inner wall of the main body frame 110. An inner rotating column 262 is rotatably connected inside the fixing plate 261. A clamping groove 268 is formed at one end of the second bidirectional screw 224. A clamping block 263 is movably connected inside the clamping groove 268. The clamping block 263 is fixedly connected to one end of the inner rotating column 262. The connection assembly 260 further includes a long rod 264 rotatably connected to the rear end face of the main body frame 110. Transmission rollers 265 are respectively fixedly connected to the outer surface of one end of the long rod 264 and the output shaft of the driving motor 214. A transmission belt 266 is connected between the outer surfaces of the two transmission rollers 265. Tapered gears 267 are respectively fixedly connected to the other ends of the long rod 264 and the inner rotating column 262. The outer surfaces of the two tapered gears 267 are meshed with each other.

[0040] Turn on the drive motor 214, and the drive motor 214 will drive the first bidirectional lead screw 212 to rotate. The first bidirectional lead screw 212 will drive two moving circular plates 213 to approach each other, driving two sets of right-angled triangular plates 270 to be inserted into each other, so that the circumference in the middle of the two sets of right-angled triangular plates 270 during insertion gradually increases. At the same time, the transmission belt 266 drives the long rod 264, and the long rod 264 drives the inner rotating column 262 through the meshing of two bevel gears 267. The inner rotating column 262 drives the second bidirectional screw 224 through the clamping block 263. The second bidirectional screw 224 drives two displacement plates 231 to move in opposite directions, so that the two pressure wheels 240 will adjust the spacing according to the insertion of the two sets of right-angled triangular plates 270. At the same time, the second small gear 237 is driven by the rack 250, so that the large gear 236 drives the first small gear 235 to drive the first lifting screw 234 to rotate. The first lifting screw 234 drives the first inner sliding rod 233 to adjust the height, so as to automatically adjust the spacing and height of the pressure wheels 240 according to different bending situations. Each component can cooperate with each other, and only the drive assembly 210 needs to be controlled, so that this device can perform bending with different arcs.

[0041] The pressing assembly 280 includes a fixed seat 281 fixedly connected to the upper part of the main body frame 110. The bottom of the fixed seat 281 is fixedly connected with a second sleeve 282. A second inner sliding rod 283 is movably connected inside the second sleeve 282. A second lifting screw 284 is rotatably connected inside the fixed seat 281. The outer surface of the second lifting screw 284 is bolted to the inside of the second inner sliding rod 283. The top end of the second lifting screw 284 is fixedly connected with a steering wheel 285, and a pressing groove is formed at the bottom end of the second inner sliding rod 283.

[0042] The air flow pipe to be operated is placed in the middle of the two sets of right-angled triangular plates 270 and between the two pressure wheels 240. Rotate the second lifting screw 284, and the second lifting screw 284 will drive the second inner sliding rod 283 to descend, and the second inner sliding rod 283 will press and fix the air flow pipe.

[0043] The heating assembly 290 includes a mounting rod 291 fixedly connected to the outer surface of the second inner sliding rod 283. One end of the mounting rod 291 is fixedly connected with an air pipe 292. A plurality of nozzles 293 are fixedly connected to the outer surface of the air pipe 292. One end of the air pipe 292 is fixedly connected with a connecting hose. The heating assembly 290 further includes a wind box 294 fixedly connected to the outer surface of the fixed seat 281. The hose is connected to the wind box 294. A blower 295 is fixedly connected to the outer surface of the wind box 294, and a plurality of heating wires 296 are installed inside the wind box 294.

[0044] Turn on the blower 295 and the heating wire 296. The blower 295 will supply air to the inside of the second lifting screw 284. The air is heated by the heating wire 296 and enters the hose. Subsequently, the air enters the air pipe 292 and is ejected through multiple nozzles 293. The hot air will heat the pipe, improving the subsequent bending effect.

[0045] The implementation principle of the embodiment of the present invention is as follows: During use, the air flow pipe to be operated is placed in the middle of the two right-angled triangular plates 270 and between the two pressing wheels 240. Rotate the second lifting screw 284, and the second lifting screw 284 will drive the second inner sliding rod 283 to descend. The second inner sliding rod 283 will press and fix the air flow pipe. After fixation, turn on the blower 295 and the heating wire 296. The blower 295 will supply air to the inside of the second lifting screw 284. The air is heated by the heating wire 296 and enters the hose. Subsequently, the air enters the air pipe 292 and is ejected through multiple nozzles 293. The hot air will heat the pipe, enabling local heating of the pipe during the bending process, thus significantly reducing the bending difficulty of hard materials (such as stainless steel and aluminum alloy), and at the same time reducing problems such as material stress, cracks, or springback caused by cold bending, thereby improving the subsequent bending effect. Turn on the cylinder 221 to drive the two lifting plates 222 to descend, causing the displacement assembly 230 and the pressing wheels 240 to descend. At this time, the latch 263 is separated from the card slot 268, causing the two pressing wheels 240 to press the air flow pipe. The air flow pipe will fit against the middle of the two right-angled triangular plates 270, thus bending the air flow pipe. After bending, the cylinder 221 drives the pressing wheels 240 to lift again. At this time, the latch 263 is reconnected to the card slot 268. When it is necessary to adjust the bending arc, the operator turns on the drive motor 214. The drive motor 214 will drive the first bidirectional lead screw 212 to rotate. The first bidirectional lead screw 212 will drive the two moving circular plates 213 to approach each other, driving the two right-angled triangular plates 270 to be inserted into each other, so that the circumference of the middle part where the two right-angled triangular plates 270 are inserted gradually increases. At the same time, the transmission belt 266 drives the long rod 264. The long rod 264 drives the inner rotating column 262 through the meshing of the two bevel gears 267. The inner rotating column 262 drives the second bidirectional screw 224 through the latch 263. The second bidirectional screw 224 drives the two displacement plates 231 to move in opposite directions, causing the two pressing wheels 240 to adjust the spacing according to the insertion of the two right-angled triangular plates 270. At the same time, the second small gear 237 is driven by the rack 250, causing the large gear 236 to drive the first small gear 235 to drive the first lifting screw 234 to rotate. The first lifting screw 234 drives the first inner sliding rod 233 to adjust the height, so as to automatically adjust the spacing and height of the pressing wheels 240 according to different bending situations. Each component can cooperate with each other, and only the drive assembly 210 needs to be controlled, enabling the device to perform bending with different arcs, and the overall operation is more convenient.

[0046] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A bending device for an automotive air duct, comprising a main body module (100) and an adjustment and adaptation module (200), characterized in that: The main body module (100) comprises a main body frame (110), and a support frame (120) is connected to the main body frame (110); The adjustment and adaptation module (200) comprises a driving assembly (210) arranged between a main frame (110) and a support frame (120); a plurality of right-angled triangle plates (270) are connected to the driving assembly (210); the plurality of right-angled triangle plates (270) are evenly divided into two groups; the two groups of right-angled triangle plates (270) are symmetrically arranged, and the two groups of right-angled triangle plates (270) are staggeredly distributed in a ring shape; a lifting assembly (220) is arranged on the rear end surface of the main frame (110); a rack (250) and two displacement assemblies (230) are arranged on the lifting assembly (220). The two displacement assemblies (230) are both connected to the rack (250), and the two displacement assemblies (230) are both rotatably connected to a pressure wheel (240). A connection assembly (260) is provided between the rear end surface of the main frame (110) and the driving assembly (210), and the connection assembly (260) is connected to the lifting assembly (220). A pressing assembly (280) is fixedly connected to the upper part of the main frame (110), and the pressing assembly (280) is located between two groups of right-angled triangles (270). Two heating assemblies (290) are provided on the pressing assembly (280).

2. The bending device for an automotive air duct according to claim 1, wherein: The driving assembly (210) comprises a fixed tube (211) fixedly connected between the rear end face of the main frame (110) and the support frame (120); a first bidirectional screw rod (212) is rotatably connected between the rear end face of the main frame (110) and the support frame (120); the first bidirectional screw rod (212) is located inside the fixed tube (211); two movable grooves are provided on the outer surface of the fixed tube (211); two movable circular plates (213) are slidably connected between the insides of the two movable grooves; the two movable circular plates (213) are both threadedly connected to the first bidirectional screw rod (212); two groups of right-angled triangle plates (270) are respectively fixedly connected to adjacent surfaces of the two movable circular plates (213); a driving motor (214) is fixedly connected to the rear end face of the main frame (110); an output shaft of the driving motor (214) is fixedly connected to one end of the first bidirectional screw rod (212).

3. The bending device for an automotive air duct according to claim 2, wherein: The lifting assembly (220) comprises two lifting slots both opened on the rear end surface of the main frame (110), the two lifting slots are each installed with a cylinder (221), the two lifting slots are each slidably connected with a lifting plate (222), the bottoms of the two lifting plates (222) are respectively fixedly connected to the output shafts of the two cylinders (221), a limiting rod (223) is fixedly connected between the two lifting plates (222), a second bidirectional screw (224) is rotatably connected between the two lifting plates (222), and the rack (250) is fixedly connected between the two lifting plates (222).

4. A bending device for an automobile air duct according to claim 3, characterized in that: The displacement assembly (230) includes a displacement plate (231) slidably connected to the outer surface of the limit rod (223). The interior of the displacement plate (231) is threadedly connected to the outer surface of the second bidirectional screw (224). The bottom of the displacement plate (231) is fixedly connected to a first sleeve (232). A first inner sliding rod (233) is movably connected inside the first sleeve (232). A first lifting screw (234) is rotatably connected inside the displacement plate (231). The outer surface of the first lifting screw (234) is threadedly connected to the interior of the first inner sliding rod (233). The pressing wheel (240) is rotatably connected to the bottom end of the first inner sliding rod (233).

5. A bending device for an automotive air duct according to claim 4, characterized in that: The displacement assembly (230) further includes a first small gear (235) fixedly connected to the top end of the first lifting screw (234). A large gear (236) is rotatably connected to the top of the displacement plate (231). The outer surface of the large gear (236) meshes with the outer surface of the first small gear (235). A second small gear (237) is fixedly connected to the top of the large gear (236). The outer surface of the second small gear (237) meshes with the outer surface of the rack (250).

6. The bending device for an automotive air duct according to claim 5, characterized in that: The connection assembly (260) includes a fixing plate (261) fixedly connected to the rear end face of the inner wall of the main frame (110). An inner rotating column (262) is rotatably connected inside the fixing plate (261). A clamping groove (268) is formed at one end of the second bidirectional screw (224). A clamping block (263) is movably connected inside the clamping groove (268). The clamping block (263) is fixedly connected to one end of the inner rotating column (262).

7. A bending device for an automotive air duct according to claim 6, characterized in that: The connection assembly (260) further includes a long rod (264) rotatably connected to the rear end face of the main frame (110). A transmission roller (265) is fixedly connected to the outer surface of the output shaft of the driving motor (214) and one end of the long rod (264). A transmission belt (266) is connected in transmission between the outer surfaces of the two transmission rollers (265). A bevel gear (267) is fixedly connected to the other end of the long rod (264) and the other end of the inner rotating column (262). The outer surfaces of the two bevel gears (267) mesh with each other.

8. A bending device for an automotive air duct according to claim 7, characterized in that: The pressing assembly (280) includes a fixing seat (281) fixedly connected to the upper part of the main frame (110). A second sleeve (282) is fixedly connected to the bottom of the fixing seat (281). A second inner sliding rod (283) is movably connected inside the second sleeve (282). A second lifting screw (284) is rotatably connected inside the fixing seat (281). The outer surface of the second lifting screw (284) is bolted to the interior of the second inner sliding rod (283). A steering wheel (285) is fixedly connected to the top end of the second lifting screw (284). A pressing groove is formed at the bottom end of the second inner sliding rod (283).

9. The bending device for an automotive air duct according to claim 8, characterized in that: The heating component (290) includes a mounting rod (291) fixedly connected to the outer surface of the second inner sliding rod (283). One end of the mounting rod (291) is fixedly connected to an air pipe (292). A plurality of nozzles (293) are fixedly connected to the outer surface of the air pipe (292). One end of the air pipe (292) is fixedly connected to a connecting hose.

10. A bending device for an automotive air duct according to claim 9, characterized in that: The heating component (290) further includes a bellows (294) fixedly connected to the outer surface of the fixed seat (281). The hose is connected to the bellows (294). A blower (295) is fixedly connected to the outer surface of the bellows (294). A plurality of heating wires (296) are installed inside the bellows (294).

Images