Automobile bumper bending device

Abstract

The automobile bumper bending device comprises a supporting platform, an inner sliding opening is formed in the supporting platform, an inner sliding plate is arranged in the inner sliding opening in a sliding mode, top supporting plates are symmetrically and fixedly connected to the top of the inner sliding plate, and top supporting frames are fixedly connected to the tops of the top supporting plates; the bumper fixing and bending device has the beneficial effects that in the bumper fixing and bending process, the device effectively reduces the contact pressure and friction force with the surface of the bumper by reasonably designing the fixing clamping plate and the guide roller structure and adopting the flexible clamping and rolling friction modes, and the bumper fixing and bending effect is improved. Damage such as surface scratch and deformation of the bumper caused by excessive clamping or sliding friction is avoided, and the appearance quality and the structural integrity of the bumper are guaranteed; compared with a traditional manual or simple mechanical bending mode, the device has the advantages that the machining time of a single bumper is greatly shortened, and the production efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bending devices, in particular to a car bumper bending device. BACKGROUND

[0002] The car bumper is an important part of the car body, not only has the function of decorating the appearance of the vehicle, but more importantly, when the vehicle collides, it can absorb and buffer external impact force to protect the safety of the vehicle body and the people inside. With the rapid development of the automobile industry, consumers' requirements for the appearance design and performance of cars are increasing, and the shape of the car bumper is becoming more and more complex and diverse to adapt to the unique design style and aerodynamic needs of different car models. With the progress of technology, some simple mechanical bending equipment has appeared, which usually uses fixed molds and simple mechanical structures to bend the bumper through hydraulic or mechanical force. Although it improves the production efficiency and bending precision to a certain extent, the mold of the simple mechanical bending equipment is fixed and can only produce bumpers of specific shape and size. When different specifications of bumpers need to be produced, the mold needs to be replaced, which not only increases the production cost, but also prolongs the production cycle. For some complex-shaped bumpers with variable bending angles, simple mechanical bending equipment is difficult to meet the processing requirements, and it is easy to appear under-bending or over-bending. SUMMARY

[0003] The purpose of the present application is to provide a car bumper bending device to solve the problem that the mold of the simple mechanical bending equipment is fixed and can only produce bumpers of specific shape and size, and when different specifications of bumpers need to be produced, the mold needs to be replaced, which not only increases the production cost, but also prolongs the production cycle. For some complex-shaped bumpers with variable bending angles, simple mechanical bending equipment is difficult to meet the processing requirements, and it is easy to appear under-bending or over-bending.

[0004] In order to achieve the above object, the present application provides the following technical scheme: A car bumper bending device, comprising a support platform, an inner sliding opening is formed in the support platform, an inner sliding plate is slidably arranged in the inner sliding opening, top support plates are symmetrically fixedly connected to the top of the inner sliding plate, a top support frame is fixedly connected to the top of the top support plates, a top fixed frame is fixedly connected to the top of the top support frame, an inner rotating disc is rotatably arranged in the top fixed frame, an adjusting plate is rotatably arranged on one side of the inner rotating disc through a rotating shaft, a connecting frame is rotatably arranged on the outer side of the adjusting plate through a rotating shaft, an adjusting support is mounted on the bottom of the connecting frame through bolts, the adjusting support is slidably connected with the top support frame, an adjusting frame is fixedly connected to the bottom of the adjusting support, linear modules are symmetrically mounted on the bottom of the adjusting frame, a limiting box is mounted on the moving sliding table of the linear module, a sliding frame is slidably arranged in the limiting box, an inner fixed frame is movably connected to the outer side of the sliding frame, the inner fixed frame is fixedly connected with the adjusting frame, a support is fixedly connected to the bottom of the linear module, the inner fixed frame is fixedly connected with the support on one side, an adjusting inclined groove is formed in the inner fixed frame, adjusting rods are symmetrically fixedly connected to the outer side of the sliding frame, the adjusting rods are slidably connected with the adjusting inclined groove, a first air cylinder is mounted in the adjusting frame, a bottom fixed frame is fixedly connected to the output end of the first air cylinder, bending rollers are rotatably arranged in the inner fixed frame and the sliding frame, second air cylinders are symmetrically mounted in the inner fixed frame of the support platform, an adjusting sliding box is fixedly connected to the output end of the second air cylinder, top sliding boxes are symmetrically slidably arranged on the top of the adjusting sliding box, fixed clamping plates are fixedly connected to the inner side of the top sliding boxes, limiting clamping plates are slidably arranged on the inner side of the top sliding boxes, a first servo motor is mounted on one side of the top fixed frame through bolts, and the output end of the first servo motor is fixedly connected with the inner rotating disc.

[0005] As a preferred scheme of the present application: a bidirectional screw rod is rotatably arranged in the inner of the adjusting sliding box, moving sliding blocks are symmetrically mounted on the outer side of the bidirectional screw rod, the moving sliding blocks are slidably connected with the adjusting sliding box, the top of the moving sliding blocks is fixedly connected with the top sliding box, a second servo motor is mounted in the adjusting sliding box, and the output end of the second servo motor is fixedly connected with the bidirectional screw rod.

[0006] As a preferred scheme of the present application: a first limiting rod is symmetrically fixedly connected to the bottom of the adjusting sliding box, and the first limiting rod is slidably connected with the support platform.

[0007] As a preferred scheme of the present application: a reciprocating screw rod is rotatably arranged in the inner of the support platform, a moving sliding plate is mounted on the outer side of the reciprocating screw rod, and the moving sliding plate is slidably connected with the support platform.

[0008] As a preferred scheme of the present application: the inside of the supporting platform is internally provided with a third servo motor, and the output end of the third servo motor is fixedly connected with the reciprocating screw rod.

[0009] As a preferred scheme of the present application: the inside of the top sliding box is internally slidably provided with an inner sliding block, one side of the inner sliding block is fixedly connected with a limiting clamping plate, and the inside of the top sliding box is internally provided with a third air cylinder, and the output end of the third air cylinder is fixedly connected with the inner sliding block.

[0010] As a preferred scheme of the present application: the inside of the inner sliding block is internally slidably provided with a second limiting rod, and the second limiting rod is fixedly connected with the top sliding box.

[0011] As a preferred scheme of the present application: the top of the bottom fixing frame is symmetrically fixedly connected with a first limiting sliding rod, and the first limiting sliding rod is slidably connected with the adjusting frame.

[0012] As a preferred scheme of the present application: the top of the adjusting frame is symmetrically fixedly connected with a second limiting sliding rod, and the second limiting sliding rod is slidably connected with the top supporting frame.

[0013] As a preferred scheme of the present application: the inner side of the fixed clamping plate is rotatably provided with a guide roller.

[0014] Compared with the prior art, the present application has the beneficial effects that: in the process of fixing and bending the bumper, the device effectively reduces the contact pressure and friction force with the surface of the bumper by reasonably designing the structure of the fixed clamping plate and the guide roller, adopting a flexible clamping and rolling friction mode, avoiding damage such as surface scratching and deformation of the bumper caused by excessive clamping or sliding friction, and ensuring the appearance quality and structural integrity of the bumper. Compared with the traditional manual or simple mechanical bending mode, the device greatly shortens the processing time of a single bumper, significantly improves the production efficiency, has a high degree of flexible adjustment function, can easily adjust the position, angle of the bending roller and the spacing of the fixed clamping plate and other parameters, and can quickly adapt to the bending processing of automobile bumpers of different specifications and shapes without frequent replacement of molds, further improving the overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the overall structure of the present application; Fig. 2 It is a schematic diagram of the internal structure of the supporting platform of the present application; Fig. 3 It is a schematic diagram of the external structure of the internal fixing frame of the present application; Fig. 4 It is a top view of the supporting platform of the present application.

[0016] In the figure: 1, support platform; 2, inner sliding plate; 3, top support plate; 4, top support frame; 5, top fixed frame; 6, inner rotating disc; 7, adjusting plate; 8, connecting frame; 9, adjusting support; 10, adjusting frame; 11, linear module; 12, support; 13, inner fixed frame; 14, adjusting rod; 15, sliding frame; 16, limiting box; 17, No. 1 air cylinder; 18, No. 1 limiting sliding rod; 19, bottom fixed frame; 20, bending roller; 21, No. 1 servo motor; 22, No. 2 air cylinder; 23, adjusting sliding box; 24, bidirectional screw; 25, No. 2 servo motor; 26, moving sliding block; 27, whole structure No. 1 limiting rod; 28, top sliding box; 29, No. 3 air cylinder; 30, inner sliding block; 31, limiting clamping plate; 32, No. 2 limiting rod; 33, fixed clamping plate; 34, guide roller; 35, moving sliding plate; 36, reciprocating screw; 37, No. 3 servo motor; 38, inner sliding opening; 39, No. 2 limiting sliding rod; 40, adjusting inclined chute. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0018] Please refer to Figs. 1 to 4The application provides a technical scheme: a car bumper bending device, which comprises a support platform 1, an inner sliding opening 38 is formed in the support platform 1, an inner sliding plate 2 is slidably arranged in the inner sliding opening 38, top supporting plates 3 are symmetrically fixedly connected to the top of the inner sliding plate 2, top supporting frames 4 are fixedly connected to the top of the top supporting plates 3, top fixed frames 5 are fixedly connected to the top of the top supporting frames 4, inner rotating discs 6 are rotatably arranged in the inner fixed frames 5, adjusting plates 7 are rotatably arranged on one side of the inner rotating discs 6 through rotating shafts, connecting frames 8 are rotatably arranged on the outer side of the adjusting plates 7 through rotating shafts, adjusting supports 9 are installed at the bottom of the connecting frames 8 through bolts, the adjusting supports 9 are slidably connected with the top supporting frames 4, adjusting frames 10 are fixedly connected to the bottom of the adjusting supports 9, linear modules 11 are symmetrically installed at the bottom of the adjusting frames 10, limit boxes 16 are installed on the moving sliding tables of the linear modules 11, sliding frames 15 are slidably arranged in the limit boxes 16, inner fixed frames 13 are movably connected to the outer side of the sliding frames 15, the inner fixed frames 13 are fixedly connected with the adjusting frames 10, supports 12 are fixedly connected to the bottom of the linear modules 11, one side of the inner fixed frames 13 is fixedly connected with the supports 12, adjusting inclined grooves 40 are formed in the inner fixed frames 13, adjusting rods 14 are symmetrically fixedly connected to the outer side of the sliding frames 15, the adjusting rods 14 are slidably connected with the adjusting inclined grooves 40, a first air cylinder 17 is installed in the adjusting frames 10, a bottom fixed frame 19 is fixedly connected to the output end of the first air cylinder 17, bending rollers 20 are rotatably arranged in the inner fixed frames 13 and the sliding frames 15, second air cylinders 22 are symmetrically installed in the support platform 1, adjusting sliding boxes 23 are fixedly connected to the output end of the second air cylinders 22, top sliding boxes 28 are symmetrically slidably arranged at the top of the adjusting sliding boxes 23, fixed clamping plates 33 are fixedly connected to the inner side of the top sliding boxes 28, limit clamping plates 31 are slidably arranged in the inner side of the top sliding boxes 28, a first servo motor 21 is installed at one side of the top fixed frame 5 through a bolt, and the output end of the first servo motor 21 is fixedly connected with the inner rotating disc 6. The device is slid in the inner sliding opening 38 of the support platform 1 through the inner sliding plate 2, cooperates with the top supporting plates 3, the top supporting frames 4 and the top fixed frame 5 to build an overall frame, the linear module 11 drives the limit box 16 to move, the adjusting rod 14 is slid in the adjusting inclined groove 40, the position of the bending roller 20 can be flexibly adjusted, the bending demand of the bumper of different specifications of cars can be met, and the applicability of the device is improved. The specific architecture and operation logic of the cooperation control of the air cylinder and the servo motor through the external controller in the application are consistent with the existing technology in the field, the servo motor is provided with an encoder, the encoder can feed back the speed and position of the servo motor in real time, the control mode has mature application in many similar industrial scenes, and therefore, the control mode will not be discussed in detail here. The linear module 11 comprises a support for mounting guide rails, a moving slide table sliding on the guide rails, a screw rod system comprising a screw rod and a nut, and a servo motor driving the screw rod, the nut being connected with the moving slide table, the servo motor driving the screw rod to rotate, and the rotation being converted into linear motion through the screw rod and the nut to drive the slide table to move, and a protective cover is further arranged to protect the internal components from dust and impurities, prolong the service life, ensure the operation accuracy, the screw rod and the nut can convert the rotary motion into linear motion, the servo motor drives the screw rod to rotate, the screw rod drives the moving slide table to move on the guide rails, and the protective cover is also arranged on the screw rod and the nut.

[0019] The inside of the adjusting slide box 23 is rotatably provided with a bidirectional screw rod 24, the outside of the bidirectional screw rod 24 is symmetrically provided with a moving block 26, the moving block 26 is slidably connected with the adjusting slide box 23, the top of the moving block 26 is fixedly connected with a top slide box 28, and the inside of the adjusting slide box 23 is provided with a second servo motor 25, and the output end of the second servo motor 25 is fixedly connected with the bidirectional screw rod 24. The bidirectional screw rod 24 rotates in the adjusting slide box 23 and cooperates with the moving block 26, and under the driving of the second servo motor 25, the top slide box 28 can be accurately controlled to move, so that the distance between the fixed clamping plates 33 can be flexibly adjusted, the fixing of bumpers with different widths can be better adapted, and the bending stability can be ensured.

[0020] The bottom of the adjusting slide box 23 is symmetrically fixedly connected with a first limiting rod 27, and the first limiting rod 27 is slidably connected with the support platform 1. The first limiting rod 27 is slidably connected with the support platform 1, which provides stable guidance for the movement of the adjusting slide box 23, prevents the adjusting slide box 23 from deviating during movement, ensures that the fixed clamping plates 33 can accurately position and fix the bumpers, and improves the bending accuracy.

[0021] The inside of the support platform 1 is rotatably provided with a reciprocating screw rod 36, the outside of the reciprocating screw rod 36 is provided with a moving slide plate 35, the moving slide plate 35 is slidably connected with the support platform 1, and the top of the moving slide plate 35 is fixedly connected with the inner slide plate 2. The reciprocating screw rod 36 rotates in the support platform 1 and drives the moving slide plate 35 to move, the moving slide plate 35 is slidably connected with the support platform 1 and the top of the moving slide plate 35 is fixedly connected with the inner slide plate 2, so that the inner slide plate 2 can be driven to move horizontally, the position can be adjusted, the feeding and discharging can be facilitated, and the operation flexibility of the device is enhanced.

[0022] The inside of the support platform 1 is provided with a third servo motor 37, and the output end of the third servo motor 37 is fixedly connected with the reciprocating screw rod 36. The third servo motor 37 is installed in the support platform 1 to provide power for the reciprocating screw rod 36, accurately control the moving speed and distance of the inner slide plate 2, make the bumper bending process more stable and accurate, and improve the bending quality and product consistency.

[0023] The inside of the top sliding box 28 is slidably provided with an inner sliding block 30, one side of the inner sliding block 30 is fixedly connected with a limiting clamp plate 31, and the inside of the top sliding box 28 is provided with a No. 3 air cylinder 29, and the output end of the No. 3 air cylinder 29 is fixedly connected with the inner sliding block 30; The No. 3 air cylinder 29 is installed in the top sliding box 28, drives the inner sliding block 30 to move, and further drives the limiting clamp plate 31 to move, so that the distance between the limiting clamp plate 31 and the fixed clamp plate 33 can be flexibly adjusted according to the thickness of the bumper, the different thicknesses of the bumper are effectively clamped, and the displacement of the bumper during bending is prevented.

[0024] The inside of the inner sliding block 30 is slidably provided with a No. 2 limiting rod 32, and the No. 2 limiting rod 32 is fixedly connected with the top sliding box 28; The No. 2 limiting rod 32 is fixedly connected with the top sliding box 28, provides stable guidance for the sliding of the inner sliding block 30 in the top sliding box 28, prevents the limiting clamp plate 31 from shaking during movement, ensures that the clamping force on the bumper is uniform, and improves the bending effect.

[0025] The top of the bottom fixed frame 19 is symmetrically fixedly connected with a No. 1 limiting sliding rod 18, and the No. 1 limiting sliding rod 18 is slidably connected with the adjusting frame 10; The No. 1 limiting sliding rod 18 is symmetrically fixedly connected to the top of the bottom fixed frame 19 and slidably connected with the adjusting frame 10, so that the movement of the bottom fixed frame 19 on the adjusting frame 10 is more stable, the stability of the bending roller 20 during upward and downward movement is ensured, the inaccuracy of the bending angle of the bumper caused by shaking is avoided, and the bending precision is improved.

[0026] The top of the adjusting frame 10 is symmetrically fixedly connected with a No. 2 limiting sliding rod 39, and the No. 2 limiting sliding rod 39 is slidably connected with the top support frame 4; The No. 2 limiting sliding rod 39 is symmetrically fixedly connected to the top of the adjusting frame 10 and slidably connected with the top support frame 4, so as to provide stable support and guidance for the sliding of the adjusting frame 10 on the top support frame 4, ensure the stability of the adjusting frame 10 during horizontal movement, and enable the bending roller 20 to accurately reach the specified position for bending operation.

[0027] The inner side of the fixed clamp plate 33 is rotatably provided with a guide roller 34; The guide roller 34 is rotatably arranged on the inner side of the fixed clamp plate 33, reduces the friction between the fixed clamp plate 33 and the bumper, facilitates the smooth movement of the bumper during bending while fixing the bumper, avoids damage to the surface of the bumper caused by friction, and ensures product quality.

[0028] Specifically, the second air cylinder 22 starts to push the adjusting slide box 23 to move to the appropriate position in the support platform 1, the second servo motor 25 drives the bidirectional screw rod 24 to rotate in the adjusting slide box 23, because the thread directions of the two sides of the bidirectional screw rod 24 are opposite, the moving sliders 26 symmetrically installed on the outer side of the bidirectional screw rod 24 move towards or away from each other, the moving sliders 26 drive the top slide box 28 to move, and then the interval of the fixed clamping plates 33 on the inner side of the top slide box 28 is adjusted to adapt to the automobile bumpers of different widths, the third air cylinder 29 starts to push the inner slider 30 to slide in the top slide box 28, the inner slider 30 drives the limiting clamping plate 31 to move, the distance between the limiting clamping plate 31 and the fixed clamping plate 33 is adjusted according to the thickness of the bumper, the bumper is clamped firmly between the two, the guide rollers 34 rotatably arranged on the inner side of the fixed clamping plate 33 reduce the friction between the guide rollers 34 and the bumper when the bumper is clamped, and the bumper is smoothly moved in the bending process, and the third servo motor 37 starts to drive the reciprocating screw rod 36 to rotate in the support platform 1.The reciprocating screw rod 36 makes the moving sliding plate 35 move horizontally in the support platform 1, the moving sliding plate 35 drives the inner sliding plate 2 to slide in the inner sliding port 38, and then drives the whole top bending mechanism to move horizontally, moves the bending roller 20 to the position needing to be bent of the bumper, and also facilitates the feeding and discharging processing of the bumper, the output end of the first servo motor 21 drives the inner rotating disc 6 to rotate, the inner rotating disc 6 drives the adjusting plate 7 to move and adjust through the rotating shaft, the adjusting plate 7 is connected with the connecting frame 8 through the rotating shaft, when the inner rotating disc 6 drives the adjusting plate 7 to move and adjust through the rotating shaft, the adjusting plate 7 drives the connecting frame 8 and the adjusting support 9 to move downwards through the rotating shaft, drives the adjusting frame 10 to move downwards as a whole, adjusts and processes the bending depth position, the first air cylinder 17 starts, pushes the bottom fixed frame 19 to move upwards and downwards in the adjusting frame 10, the bending roller 20 rotatably arranged on the bottom fixed frame 19 also moves upwards and downwards, the contact position of the bending roller 20 and the bumper is preliminarily adjusted, the linear module 11 starts, the moving sliding table drives the limiting box 16 to move, the sliding frame 15 in the limiting box 16 moves, the adjusting rod 14 outside the sliding frame 15 slides in the adjusting inclined groove 40 of the inner fixed frame 13, due to the inclined design of the adjusting inclined groove 40, the sliding frame 15 also produces a certain upward and downward displacement while moving horizontally, and then drives the bending roller 20 rotatably arranged in the sliding frame 15 to be finely adjusted in angle and height, so that the bending roller 20 can more accurately fit the bending position of the bumper, when the bumper is firmly fixed and the bending roller 20 is adjusted to the appropriate position, the first air cylinder 17 continues to exert force, pushes the bottom fixed frame 19 to move upwards, the bending roller 20 on the bottom fixed frame 19 exerts an upward force on the bumper, at the same time, through the fine adjustment of the linear module 11 and the cooperation between the components, the bumper is bent according to the predetermined angle and shape, in the bending process, the first limiting rod 27, the second limiting rod 32, the first limiting sliding rod 18 and the second limiting sliding rod 39 provide stable guidance for the movement of the components, ensure the stability and accuracy of the bending process, avoid the bumper from deviating or deforming, and finally complete the bending processing of the automobile bumper.

[0029] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purpose and are not to be construed as indicating or implying relative importance or a specific number of the technical features indicated thereby, thus the features with "first", "second", "third", "fourth" can include at least one of the features explicitly or implicitly.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited, the above terms in the present application can be understood according to the specific meaning of the above terms by the person skilled in the art.

[0032] Although the embodiments of the present application have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A car bumper bending device, characterized in that, The utility model provides a support platform (1), the inside of support platform (1) is opened with inside sliding mouth (38), inside sliding mouth (38) is slidably arranged with inside sliding board (2), the top of inside sliding board (2) is fixedly connected with top support board (3), the top of top support board (3) is fixedly connected with top support frame (4), the top of top support frame (4) is fixedly connected with top fixed frame (5), inside rotatingly arranged with inside rotating disc (6) in top fixed frame (5), one side of inside rotating disc (6) is rotatably arranged with adjusting plate (7) through the pivot, the outside of adjusting plate (7) is rotatably arranged with connecting frame (8) through the pivot, the bottom of connecting frame (8) is installed with adjusting support (9) through bolt, adjusting support (9) is slidably connected with top support frame (4), the bottom of adjusting support (9) is fixedly connected with adjusting frame (10), the bottom of adjusting frame (10) is symmetrically installed with linear module (11), the moving slide of linear module (11) is installed with limit box (16), the inside of limit box (16) is slidably arranged with sliding frame (15), the outside of sliding frame (15) is movably connected with inside fixed frame (13), inside fixed frame (13) is fixedly connected with adjusting frame (10), the bottom of linear module (11) is fixedly connected with support (12), one side of inside fixed frame (13) is fixedly connected with support (12), the inside of inside fixed frame (13) is opened with adjusting inclined groove (40), the outside of sliding frame (15) is symmetrically fixedly connected with adjusting rod (14), adjusting rod (14) is slidably connected with adjusting inclined groove (40), the inside of adjusting frame (10) is installed with no.

2. The automobile bumper folding device according to claim 1, characterized in that: The inside of adjusting slide box (23) is rotatably provided with bidirectional screw rod (24), the outside of bidirectional screw rod (24) is symmetrically installed with moving slider (26), moving slider (26) is slidably connected with adjusting slide box (23), the top of moving slider (26) is fixedly connected with top sliding box (28), the inside of adjusting slide box (23) is installed with no.

3. A device for bending an automobile bumper as defined in claim 2, wherein: The bottom of the adjusting sliding box (23) is symmetrically fixed with a first limiting rod (27), and the first limiting rod (27) is in sliding connection with the supporting platform (1).

4. The automobile bumper folding device according to claim 3, characterized in that: A reciprocating screw rod (36) is rotatably arranged in the supporting platform (1), a moving sliding plate (35) is mounted on the outer side of the reciprocating screw rod (36), the moving sliding plate (35) is in sliding connection with the supporting platform (1), and the top of the moving sliding plate (35) is fixed with the inner sliding plate (2).

5. A device for bending an automobile bumper as defined in claim 4, wherein: A third servo motor (37) is mounted in the supporting platform (1), and the output end of the third servo motor (37) is fixed with the reciprocating screw rod (36).

6. A device for bending an automobile bumper as defined in claim 5, wherein: An inner sliding block (30) is slidably arranged in the top sliding box (28), one side of the inner sliding block (30) is fixed with a limiting clamping plate (31), a third air cylinder (29) is mounted in the top sliding box (28), and the output end of the third air cylinder (29) is fixed with the inner sliding block (30).

7. A device for bending an automobile bumper as defined in claim 6, wherein: A second limiting rod (32) is slidably arranged in the inner sliding block (30), and the second limiting rod (32) is fixed with the top sliding box (28).

8. A device for bending an automobile bumper as defined in claim 7, wherein: The top of the bottom fixed support (19) is symmetrically fixed with a first limiting sliding rod (18), and the first limiting sliding rod (18) is in sliding connection with the adjusting support (10).

9. A device for bending an automobile bumper as defined in claim 8, wherein: The top of the adjusting support (10) is symmetrically fixed with a second limiting sliding rod (39), and the second limiting sliding rod (39) is in sliding connection with the top supporting support (4).

10. The automobile bumper folding device according to claim 9, wherein: The inner side of the fixed clamping plate (33) is rotatably provided with a guide roller (34).

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