Shipway bending device for boat tractor

Abstract

A boat frame bending device for a boat tractor relates to the technical field of metal bending processing and comprises a mounting platform, and four guide square frames are transversely welded on the mounting platform; a C-shaped seat is arranged on each square guide frame in a sliding mode, the opening directions of every two adjacent C-shaped seats are opposite, and the four C-shaped seats are the first sliding seat, the second sliding seat, the third sliding seat and the fourth sliding seat in sequence from left to right; a first bending mechanism is arranged in the first sliding seat, a second bending mechanism is arranged in the second sliding seat, a third bending mechanism is arranged in the third sliding seat, a fourth bending mechanism is arranged in the fourth sliding seat, and side clamping transfer modules are arranged on the inner top face of the first sliding seat and the inner top face of the third sliding seat correspondingly. The inner top faces of the second sliding base and the fourth sliding base are each provided with a center clamping and transferring module. The problems that in the prior art, when bending equipment is used for machining the boat-tractor shipway, machining efficiency is low, compatibility is poor, die changing is slow, precision is poor, and clamping and supporting are single are solved.

Description

Technical Field

[0001] The invention relates to the technical field of metal bending processing, and in particular to a boat frame bending device for a mechanized farming boat. Background Art

[0002] Under the background of rapid advancement of agricultural mechanization, the market demand for mechanized plough boats, as the core equipment for paddy field operations in southern China, has increased by more than 15% annually. As the bearing base of mechanized plough boats, the rigs need to have high strength and complex curved surface structures to adapt to the impact and watertightness requirements of muddy terrain. Bending equipment is often used, but existing bending equipment generally has the following problems during actual use: 1. Traditional processing procedures are fragmented and production efficiency is low: Existing ship frame bending mostly adopts single-station equipment for step-by-step processing, which requires multiple manual clamping and transfer of panels. The single processing cycle is as long as more than 30 minutes, and the waiting time between each process accounts for more than 40%, which makes it difficult to meet the needs of large-scale production.

[0003] 2. The bending process has poor compatibility and is difficult to adapt to complex structures: The ship frame needs to achieve multiple types of processing such as local rolling, angle bending, and arc forming. Traditional equipment can only complete a single bending form and requires the cooperation of multiple devices, resulting in the accumulation of process connection errors and unable to meet the sealing requirements of the ship frame curved surface.

[0004] 3. Mold replacement is time-consuming and flexible production capacity is insufficient: The agricultural machinery market has an increasing demand for customized frame models, but replacing traditional bending molds requires removing bolts and calibrating positioning. Replacing a single set of molds takes more than an hour, and the production economy of small batch orders is extremely poor.

[0005] 4. There is much manual intervention, and the processing accuracy and consistency are poor: When relying on manual positioning of panels, the bending angle error is large, and the difference in operator experience leads to insufficient qualified rate of products in the same batch, especially in the processing of low-rigidity materials such as aluminum alloy, which is prone to defects such as warping and wrinkling.

[0006] 5. Single clamping and supporting method, limited adaptability: Existing fixtures can only achieve one-way clamping. For wide or irregular-section ship frame panels, processing deviation may easily occur due to unstable clamping, resulting in a high scrap rate.

[0007] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0008] In response to the defects in the existing technology, the present invention provides a boat frame bending device for a mechanized farming boat, which is used to solve the problems of low processing efficiency, poor compatibility, slow mold change, poor precision, and single clamping support when the bending equipment in traditional technology is used for mechanized farming boat frame processing.

[0009] To achieve the above object, the present invention provides the following technical solutions: A boat frame bending device for a mechanized farming boat comprises a mounting platform, four guide frames are welded on the mounting platform in the transverse direction, and a C-shaped enclosure is welded on each longitudinal outer wall of the mounting platform.

[0010] As an optimized solution, a C-shaped seat is slidingly provided on each guide frame, and the openings of two adjacent C-shaped seats face opposite directions. The four C-shaped seats are the first slide, the second slide, the third slide and the fourth slide from left to right.

[0011] As an optimized solution, a first bending mechanism is provided in the first slide, a second bending mechanism is provided in the second slide, a third bending mechanism is provided in the third slide, and a fourth bending mechanism is provided in the fourth slide.

[0012] As an optimized solution, a side clamping transfer module is provided on the inner top surface of the first slide, and the side clamping transfer module includes two symmetrically arranged limiting slide rails, and the two limiting slide rails are respectively welded to the two ends of the inner top surface of the first slide.

[0013] As an optimized solution, two longitudinally symmetrical lifting slides are slidably mounted in each of the limiting slide rails, and a vertical electric telescopic cylinder is fixed to the lower surface of each lifting slide. A C-shaped clamping seat is fixed to the lower telescopic end of the electric telescopic cylinder, and a horizontal clamping plate is slidably mounted in the clamping seat.

[0014] As an optimized solution, a first connecting port is provided on the vertical portion of the first slide, a first vertical plate is fixedly mounted on the upper surface of the C-shaped enclosure, and a first side plate is welded to the upper end of the inner side wall of the first vertical plate facing the first connecting port.

[0015] As an optimized solution, a rotation drive motor is fixed on the outer side wall of the first vertical plate, and the output shaft end of the rotation drive motor passes through the first vertical plate and the first side plate and is fixed with a rotation socket.

[0016] As an optimized solution, the first bending mechanism includes a rotating bending roller fixedly plugged into the rotating socket, and a bending arc plate that engages and matches with the rotating bending roller is provided on the inner top surface of the first slide.

[0017] As an optimized solution, two sliding drive motors are fixed to the two guide frames spaced apart on the upper surface of each C-shaped enclosure. The end of the output shaft of each sliding drive motor passes through the corresponding guide frame and is fixed with a threaded screw. The end of the threaded screw is rotatably supported on the longitudinal inner wall of the guide frame.

[0018] As an optimized solution, a square drive block is welded on the lower surface of each C-shaped seat, and the threaded screw passes through and is threadedly connected to the corresponding square drive block. Four symmetrical limiting rollers are rotated on the lower surface of each C-shaped seat, and the two limiting rollers on the same side roll against the lateral outer wall of the guide frame. An integrated electronic control module is fixed in the middle of the upper surface of each C-shaped seat.

[0019] As an optimized solution, a bending conveying assembly is provided in the middle of the upper surface of the mounting platform, and the bending conveying assembly includes two longitudinally symmetrical conveying mounting plates, and the conveying mounting plates are U-shaped frame plates with openings facing downward. The horizontal parts of the conveying mounting plates pass through the four C-shaped seats in sequence and extend to their outsides. The vertical parts of the two conveying mounting plates are welded with longitudinal connecting beams, and the lower ends of the conveying mounting plates are welded to the mounting platform.

[0020] As an optimized solution, a transmission box is welded on the longitudinal inner wall of each conveying mounting plate, and a number of equally spaced conveying rollers are provided between the two transmission boxes. A transmission shaft is welded on each side end face of the conveying roller, and the end of the transmission shaft is rotatably mounted on the inner wall of the transmission box.

[0021] As an optimized solution, a sprocket is fixedly mounted on each of the transmission shafts, and a transmission chain is sleeved between two adjacent sprockets.

[0022] As an optimized solution, two symmetrical conveying drive motors are fixed to both ends of the longitudinal outer wall of one of the conveying mounting plates, and the output shafts of the conveying drive motors are connected to the transmission shaft at the very end.

[0023] As an optimized solution, a horizontal lifting plate is provided directly below several of the conveying rollers. The lifting plate is arranged close to the inner bottom surfaces of the four C-shaped seats. Several supporting vertical plates are welded on the upper surface of the lifting plate at equal intervals. The supporting vertical plates are arranged between two adjacent conveying rollers.

[0024] As an optimized solution, four lifting cylinders are provided on both sides of the four guide frames, which are symmetrical in pairs. The lower ends of the lifting cylinders are fixedly mounted on the upper surface of the mounting platform, and the upper telescopic ends of the lifting cylinders are fixed to the lower surface of the lifting support plate.

[0025] As an optimized solution, the side clamping transfer module is also provided on the inner top surface of the third slide.

[0026] As an optimized solution, a center clamping transfer module is provided on the inner top surface of the second slide, and the center clamping transfer module includes a center top seat, and the lower surface of the center top seat is provided with four symmetrical limiting slide grooves in the longitudinal direction. The lifting slide is also slidably provided in each of the limiting slides, and the electric telescopic cylinder is also fixed on the lower surface of the lifting slide, and the clamping card is also fixed to the lower telescopic end of the electric telescopic cylinder, and the horizontal clamp is also slidably provided in the clamping card.

[0027] As an optimized solution, the central clamping transfer module is also provided on the inner top surface of the fourth slide.

[0028] As an optimized solution, a second connecting port is provided in the vertical part of the second sliding seat, a second vertical plate is fixedly installed on the upper surface of the C-shaped enclosure, the second vertical plate is arranged on the opposite side of the sliding drive motor, and a second side plate is welded on the inner side wall of the second vertical plate, and the second side plate is arranged opposite the second connecting port.

[0029] As an optimized solution, a first lower die base is fixed on the inner wall of the second side panel, the second bending mechanism includes a first bending lower die fixedly mounted on the first lower die base, and a first bending upper die matching the first bending lower die is provided on the lower surface of the center top seat.

[0030] As an optimized solution, a third connecting port is provided in the vertical part of the third sliding seat, a third vertical plate is fixedly installed on the upper surface of the C-shaped enclosure, the third vertical plate is arranged on the opposite side of the sliding drive motor, and a third side plate is welded to the upper end of the inner wall of the third vertical plate. The third side plate is arranged opposite to the third connecting port and its size matches the third connecting port.

[0031] As an optimized solution, two symmetrical fixed sockets are slidingly provided on the third side plate, and the third bending mechanism includes a bending lower roller fixedly plugged into the fixed socket, and a bending upper roller is raised and lowered on the inner top surface of the third slide.

[0032] As an optimized solution, a fourth connecting port is provided in the vertical part of the fourth slide seat, a fourth vertical plate is fixedly installed on the upper surface of the C-shaped enclosure, the fourth vertical plate is arranged on the opposite side of the sliding drive motor, a fourth side plate is welded on the inner side wall of the fourth vertical plate, and the fourth side plate is arranged opposite to the fourth connecting port.

[0033] As an optimized solution, a second lower die base is fixed on the inner wall of the fourth side panel, the fourth bending mechanism includes a second bending lower die fixedly mounted on the second lower die base, and the lower surface of the center top seat is provided with a second bending upper die matching the second bending lower die.

[0034] Compared with the prior art, the present invention has the following beneficial effects: 1. Full-process automation greatly improves production efficiency.

[0035] Specifically, the present invention integrates full-process automation control including conveying, positioning, clamping, and bending; This device can realize continuous bending and conveying: the conveying drive motor drives multiple sets of conveying rollers to operate synchronously through sprocket transmission, realizing the rapid horizontal conveying of the mechanized farming boat frame, and multiple sections of bending can be completed in a single clamping; This device can realize intelligent positioning and lifting: the lifting cylinder drives the lifting plate to accurately eject the panel, and the position feedback of the integrated electronic control module ensures that the positioning error of the panel at each station is less than ±0.1mm; This device can realize multi-station collaborative operation: four slides complete four bendings in sequence, and the slides are driven to move longitudinally by the threaded screw to achieve continuous processing, reducing the waiting time of traditional single-station equipment.

[0036] 2. Modular design and quick mold change to enhance processing flexibility This device is equipped with multiple types of bending mechanisms: local rolling bending is achieved through the combination of the rotating bending roller and the bending arc plate of the first slide, the upper and lower molds of the second and fourth slides complete the angle bending, and the bending roller pair of the third slide achieves arc forming, covering the processing requirements of complex curved surfaces of ship frames; This device is equipped with a quick-release mold system: all bending components (such as the rotating bending roller and the bending lower mold) support quick plug-in replacement. Combined with the coordinated positioning of the limit slide rail and the electric telescopic cylinder, mold switching can be completed within 5 minutes, significantly shortening the production change time. This device can realize flexible switching of clamping modes: the side clamping transfer module (first and third slides) and the center clamping transfer module (second and fourth slides) can adapt to the clamping requirements of panels of different widths through the sliding of the lifting slide and the linkage of the electric telescopic cylinder, avoiding the versatility limitations of traditional clamps.

[0037] 3. High-precision transmission and dynamic control to ensure processing quality This device adopts a precise positioning mechanism: the cooperation between the threaded screw and the guide frame realizes the high linearity of the slide movement, and the rolling contact between the limit roller and the outer wall of the guide frame effectively suppresses lateral deviation.

[0038] This device adopts dynamic bending control: the rotating drive motor drives the rotating bending roller to rotate, and at the same time the bending arc plate is pressed down. Through the synchronous movement of the two, the progressive rolling bending of the mechanized farming boat frame is achieved, avoiding the stress concentration and surface damage of traditional stamping bending.

[0039] This device can realize real-time monitoring and compensation: the integrated electronic control module monitors the plate position and bending force in real time through sensors, and automatically adjusts the slide displacement and pressure parameters in combination with the preset bending path model to ensure that the bending angle error is ≤±0.5°. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0041] Figure 1 Schematic diagram of the external overall structure of the present invention in the main viewing direction; Figure 2 Schematic diagram of the external overall structure of the present invention when viewed from above; Figure 3 Schematic diagram of the external overall structure of the present invention as viewed from the left side; Figure 4 For the present invention Figure 2 Schematic diagram of the internal structure cut along the AA line; Figure 5 For the present invention Figure 1 Schematic diagram of the internal structure cut through the midline BB; Figure 6 For the present invention Figure 3 Schematic diagram of a three-dimensional half section cut along the midline HH; Figure 7 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 8 For the present invention Figure 1 Schematic diagram of the internal structure cut through the CC line; Figure 9 For the present invention Figure 1 Schematic diagram of the internal structure cut along line EE; Figure 10 For the present invention Figure 1 Schematic diagram of the internal structure cut through the FF line; Figure 11 For the present invention Figure 1 Schematic diagram of the internal structure cut along the GG line.

[0042] In the figure: 1-installation platform, 2-guide frame, 3-C-type enclosure, 4-sliding drive motor, 5-threaded screw, 6-first slide, 7-second slide, 8-third slide, 9-fourth slide, 10-square drive block, 11-limiting roller, 12-integrated electronic control module, 13-conveyor mounting plate, 14-longitudinal connecting beam, 15-transmission box, 16-conveyor roller, 17-transmission shaft, 18-transmission chain, 19-conveyor drive motor, 20-lifting support plate, 21-support vertical plate, 22-lifting cylinder, 23-limiting slide rail, 24-lifting slide, 25-electric telescopic cylinder, 26-clamping card seat, 27-horizontal splint, 28-center Top seat, 29-first connecting port, 30-first vertical plate, 31-first side plate, 32-rotating drive motor, 33-rotating socket, 34-rotating bending roller, 35-bending arc plate, 36-second connecting port, 37-second vertical plate, 38-second side plate, 39-first lower die seat, 40-first bending lower die, 41-first bending upper die, 42-third connecting port, 43-third vertical plate, 44-third side plate, 45-fixed socket, 46-bending lower roller, 47-bending upper roller, 48-fourth connecting port, 49-fourth vertical plate, 50-fourth side plate, 51-second lower die seat, 52-second bending lower die, 53-second bending upper die. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0044] like Figures 1 to 7 The first embodiment shown is a boat frame bending device for a mechanized farming boat, comprising a mounting platform 1, which is a horizontally grounded square platform. Four guide frames 2 are welded horizontally on the mounting platform 1, and the guide frames 2 are longitudinally extending metal frames. A C-shaped enclosure 3 is welded on each longitudinal outer wall of the mounting platform 1.

[0045] Two sliding drive motors 4 are fixed to the two guide frames 2 spaced apart on the upper surface of each C-shaped enclosure 3. The end of the output shaft of each sliding drive motor 4 passes through the corresponding guide frame 2 and is fixed with a threaded screw 5. The end of the threaded screw 5 is rotatably supported on the longitudinal inner wall of the guide frame 2.

[0046] Four C-shaped seats are slidingly provided on each guide frame 2. The four C-shaped seats are, from left to right, the first slide 6, the second slide 7, the third slide 8 and the fourth slide 9. The openings of the first slide 6 and the third slide 8 are in the same direction, the openings of the second slide 7 and the fourth slide 9 are in the same direction, and the openings of the first slide 6 and the second slide 7 are in opposite directions.

[0047] A square drive block 10 is welded to the lower surface of each C-shaped seat, and the threaded screw 5 passes through and is threadedly connected to the corresponding square drive block 10. Four symmetrical limiting rollers 11 are rotated on the lower surface of each C-shaped seat, and the two limiting rollers 11 on the same side roll against the lateral outer wall of the guide frame 2. An integrated electronic control module 12 is fixed in the middle of the upper surface of each C-shaped seat.

[0048] A bending conveying assembly is provided in the middle of the upper surface of the mounting platform 1. The bending conveying assembly includes two longitudinally symmetrical conveying mounting plates 13. The conveying mounting plates 13 are U-shaped frame plates with openings facing downward. The horizontal parts of the conveying mounting plates 13 pass through the four C-shaped seats in sequence and extend to their outsides. The vertical parts of the two conveying mounting plates 13 are welded with longitudinal connecting beams 14, and the lower ends of the conveying mounting plates 13 are welded to the mounting platform 1.

[0049] A transmission box 15 is welded to the longitudinal inner wall of each conveying mounting plate 13, and a number of equally spaced conveying rollers 16 are provided between the two transmission boxes 15. A transmission shaft 17 is welded to each side end face of the conveying roller 16, and the end of the transmission shaft 17 is rotatably mounted on the inner wall of the transmission box 15.

[0050] A sprocket is fixedly mounted on each transmission shaft 17 , and a transmission chain 18 is sleeved between two adjacent sprockets.

[0051] Two symmetrical conveying drive motors 19 are fixed to both ends of the longitudinal outer wall of one of the conveying mounting plates 13 , and the output shafts of the conveying drive motors 19 are connected to the transmission shaft 17 at the end.

[0052] A horizontal lifting plate 20 is provided directly below the several conveying rollers 16. The lifting plate 20 is set close to the inner bottom surface of the four C-shaped seats. Several supporting vertical plates 21 are welded at equal intervals on the upper surface of the lifting plate 20. The supporting vertical plates 21 are provided between two adjacent conveying rollers 16.

[0053] Four lifting cylinders 22 are symmetrically arranged on both sides of the four guide frames 2. The lower ends of the lifting cylinders 22 are fixedly mounted on the upper surface of the mounting platform 1, and the upper telescopic ends of the lifting cylinders 22 are fixed to the lower surface of the lifting support plate 20.

[0054] The first slide 6 is provided with a first bending mechanism, the second slide 7 is provided with a second bending mechanism, the third slide 8 is provided with a third bending mechanism, and the fourth slide 9 is provided with a fourth bending mechanism.

[0055] A side clamping transfer module is provided on the inner top surface of the first slide 6, and the side clamping transfer module includes two symmetrically arranged limit rails 23, which are respectively welded to the two ends of the inner top surface of the first slide 6, and two longitudinally symmetrical lifting slides 24 are slidably mounted in each limit rail 23. A vertical electric telescopic cylinder 25 is fixed to the lower surface of each lifting slide 24, and a C-shaped clamping card seat 26 is fixed to the lower telescopic end of the electric telescopic cylinder 25, and a horizontal clamping plate 27 is slidably provided in the clamping card seat 26.

[0056] A side clamping transfer module is also provided on the inner top surface of the third slide 8 .

[0057] A central clamping and transfer module is provided on the inner top surface of the second slide 7, and the central clamping and transfer module includes a central top seat 28. Four symmetrical limiting slide grooves are provided on the lower surface of the central top seat 28 in the longitudinal direction. A lifting slide 24 is also slidably provided in each limiting slide. An electric telescopic cylinder 25 is also fixed on the lower surface of the lifting slide 24. A clamping card seat 26 is also fixed to the lower telescopic end of the electric telescopic cylinder 25. A horizontal splint 27 is also slidably provided in the clamping card seat 26.

[0058] A central clamping and transferring module is also provided on the inner top surface of the fourth slide 9 .

[0059] A first connecting port 29 is provided in the vertical portion of the first slide 6, and a first vertical plate 30 is fixedly installed on the upper surface of the C-shaped enclosure 3. The first vertical plate 30 is arranged on the opposite side of the sliding drive motor 4. A first side plate 31 is welded to the upper end of the inner side wall of the first vertical plate 30. The first side plate 31 is arranged opposite to the first connecting port 29 and its size matches the first connecting port 29.

[0060] A rotation drive motor 32 is fixed to the outer wall of the first vertical plate 30 . The output shaft end of the rotation drive motor 32 passes through the first vertical plate 30 and the first side plate 31 and is fixed to a rotation socket 33 .

[0061] The first bending mechanism includes a rotating bending roller 34 fixedly plugged into the rotating socket 33 , and a bending arc plate 35 engaging with the rotating bending roller 34 is provided on the inner top surface of the first slide 6 .

[0062] A second connecting port 36 is provided in the vertical portion of the second slide 7, and a second vertical plate 37 is fixedly installed on the upper surface of the C-shaped enclosure 3. The second vertical plate 37 is arranged on the opposite side of the sliding drive motor 4. A second side plate 38 is welded on the inner side wall of the second vertical plate 37, and the second side plate 38 is arranged opposite the second connecting port 36.

[0063] A first lower die seat 39 is fixed on the inner side wall of the second side plate 38 , and the second bending mechanism includes a first bending lower die 40 fixedly mounted on the first lower die seat 39 . A first bending upper die 41 matching the first bending lower die 40 is provided on the lower surface of the center top seat 28 .

[0064] A third connecting port 42 is provided in the vertical portion of the third slide 8, and a third vertical plate 43 is fixedly installed on the upper surface of the C-shaped enclosure 3. The third vertical plate 43 is arranged on the opposite side of the sliding drive motor 4. A third side plate 44 is welded to the upper end of the inner wall of the third vertical plate 43. The third side plate 44 is arranged opposite to the third connecting port 42 and its size matches the third connecting port 42.

[0065] Two symmetrical fixed sockets 45 are slidably provided on the third side plate 44 , and the third bending mechanism includes a bending lower roller 46 fixedly plugged into the fixed sockets 45 , and a bending upper roller 47 is lifted and lowered on the inner top surface of the third slide 8 .

[0066] A fourth connecting port 48 is provided in the vertical portion of the fourth slide 9, and a fourth vertical plate 49 is fixedly installed on the upper surface of the C-shaped enclosure 3. The fourth vertical plate 49 is arranged on the opposite side of the sliding drive motor 4. A fourth side plate 50 is welded on the inner side wall of the fourth vertical plate 49, and the fourth side plate 50 is arranged opposite the fourth connecting port 48.

[0067] A second lower die base 51 is fixed on the inner wall of the fourth side plate 50, and the fourth bending mechanism includes a second bending lower die 52 fixedly mounted on the second lower die base 51. A second bending upper die 53 matching the second bending lower die 52 is provided on the lower surface of the center top seat 28.

[0068] like Figures 8 to 11 In the second embodiment, the rotating bending roller 34, the bending arc plate 35, the first bending lower die 40, the first bending upper die 41, the bending lower roller 46, the bending upper roller 47, the second bending lower die 52 and the second bending upper die 53 can be quickly disassembled and replaced according to actual bending requirements.

[0069] When the present invention is used: first, the strip metal sheet to be bent is placed flat on the conveying roller 16 from one side, and two conveying drive motors 19 are respectively started. Through the transmission of the transmission chain 18, sprocket and transmission shaft 17, the conveying rollers 16 are driven to rotate synchronously to convey the metal sheet horizontally; After the metal sheet is transported to a specific position, the lifting cylinder 22 is controlled to extend, driving the lifting support plate 20 to rise, and the metal sheet is pushed upward as a whole by the supporting vertical plate 21; When the metal sheet is located in the first slide 6, the lifting slide 24 is controlled to slide along the limiting slide rail 23, and the electric telescopic cylinder 25 is controlled to extend and retract. The clamping base 26 and the horizontal clamping plate 27 are used to clamp the metal sheet from both sides in the longitudinal direction. Then, the electric telescopic cylinder 25 is controlled to shorten to lift the metal sheet as a whole. According to the actual bending requirements, different types of rotating bending rollers 34 are plugged and fixed on the rotating socket 33; The sliding drive motor 4 is started, which drives the threaded screw 5 to rotate, driving the square drive block 10 to slide longitudinally along the guide frame 2, so that the first slide 6 slides close to the first vertical plate 30 until the rotating bending roller 34 passes through the first connecting port 29 and moves horizontally to the bottom of the metal plate. Control the bending arc plate 35 to press down, and at the same time start the rotation drive motor 32 to drive the rotating bending roller 34 to rotate around the axis to perform partial bending on the metal plate; After the first bending process is completed, the side clamping and transferring module is started again to move the metal sheet back to the bending conveying assembly and continue to convey it horizontally. After the metal sheet is conveyed to the second slide 7, the above steps are repeated, and the metal sheet is clamped and transferred by the central clamping and transferring module, and the second bending process is performed using the first bending lower die 40 and the first bending upper die 41; After the metal sheet is moved into the third slide 8, the above steps are repeated, the metal sheet is clamped and transferred using the side clamp transfer module, and the third bending process is performed using the bending lower roller 46 and the bending upper roller 47; After the metal sheet is moved into the fourth slide 9, the above steps are repeated, the metal sheet is clamped and transferred using the central clamping transfer module, and the fourth bending process is performed using the second bending lower die 52 and the second bending upper die 53; After all the bending processes are completed, the metal sheet becomes an integral boat frame for a mechanized farming boat and is transported out horizontally via the conveying rollers 16 .

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and description of the present invention.

Claims

1. A boat frame bending device for a tractor boat, characterized by: It includes a mounting platform, on which four guide frames are welded in the transverse direction, and on each longitudinal outer wall of the mounting platform a C-shaped enclosure is welded; A C-shaped seat is slidably provided on each guide frame, and the openings of two adjacent C-shaped seats face opposite directions. The four C-shaped seats are, from left to right, the first slide, the second slide, the third slide and the fourth slide; The first slide is provided with a first bending mechanism, the second slide is provided with a second bending mechanism, the third slide is provided with a third bending mechanism, and the fourth slide is provided with a fourth bending mechanism; A side clamping transfer module is provided on the inner top surface of the first slide, and the side clamping transfer module includes two symmetrically arranged limiting slide rails, and the two limiting slide rails are respectively welded to the two ends of the inner top surface of the first slide; Two longitudinally symmetrical lifting slides are slidably mounted in each of the limit slide rails, and a vertical electric telescopic cylinder is fixed to the lower surface of each of the lifting slides. A C-shaped clamping seat is fixed to the lower telescopic end of the electric telescopic cylinder, and a horizontal clamping plate is slidably mounted in the clamping seat; A first communication port is formed on the vertical portion of the first slide, a first vertical plate is fixedly mounted on the upper surface of the C-shaped enclosure, and a first side plate is welded to the upper end of the inner side wall of the first vertical plate facing the first communication port; A rotation drive motor is fixed on the outer side wall of the first vertical plate, and the output shaft end of the rotation drive motor passes through the first vertical plate and the first side plate and is fixed with a rotation socket; The first bending mechanism includes a rotating bending roller fixedly plugged into the rotating socket, and a bending arc plate that is engaged with the rotating bending roller is provided on the inner top surface of the first slide seat.

2. The gantry boat frame bending device according to claim 1, characterized in that: Two sliding drive motors are fixed to two guide frames spaced apart on the upper surface of each C-shaped enclosure, and the end of the output shaft of each sliding drive motor passes through the corresponding guide frame and is fixed with a threaded screw, and the end of the threaded screw is rotatably supported on the longitudinal inner wall of the guide frame; A square drive block is welded to the lower surface of each C-shaped seat, and the threaded screw passes through and is threadedly connected to the corresponding square drive block. Four symmetrical limiting rollers are rotated on the lower surface of each C-shaped seat, and the two limiting rollers on the same side roll against the lateral outer wall of the guide frame. An integrated electronic control module is fixed in the middle of the upper surface of each C-shaped seat.

3. The gantry boat frame bending device according to claim 1, characterized in that: A bending conveying assembly is provided in the middle of the upper surface of the mounting platform, and the bending conveying assembly includes two longitudinally symmetrical conveying mounting plates, the conveying mounting plates are U-shaped frame plates with openings facing downwards, the horizontal portions of the conveying mounting plates sequentially pass through the four C-shaped seats and extend to the outside thereof, the vertical portions of the two conveying mounting plates are welded with longitudinal connecting beams, and the lower ends of the conveying mounting plates are welded to the mounting platform; A transmission box is welded to the longitudinal inner wall of each conveying mounting plate, and a plurality of equally spaced conveying rollers are provided between two of the transmission boxes. A transmission shaft is welded to each side end face of the conveying roller, and the end of the transmission shaft is rotatably mounted on the inner wall of the transmission box. A sprocket is fixedly mounted on each transmission shaft, and a transmission chain is sleeved between two adjacent sprockets. Two symmetrical conveying drive motors are respectively fixed to both ends of the longitudinal outer wall of one of the conveying mounting plates, and the output shafts of the conveying drive motors are connected to the transmission shaft at the very end.

4. The gantry boat frame bending device according to claim 3, characterized in that: A horizontal lifting support plate is provided directly below the plurality of conveying rollers. The lifting support plate is arranged close to the inner bottom surface of the four C-shaped seats. A plurality of supporting vertical plates are welded to the upper surface of the lifting support plate at equal intervals. The supporting vertical plates are provided between two adjacent conveying rollers. Four lifting cylinders are symmetrically arranged in pairs on both lateral sides of the four guide frames, the lower ends of the lifting cylinders are fixedly mounted on the upper surface of the mounting platform, and the upper telescopic ends of the lifting cylinders are fixed to the lower surface of the lifting support plate.

5. The gantry boat frame bending device according to claim 1, characterized in that: The side clamping transfer module is also provided on the inner top surface of the third slide.

6. The gantry boat frame bending device according to claim 2, characterized in that: A central clamping and transferring module is provided on the inner top surface of the second slide, and the central clamping and transferring module includes a central top seat, and four symmetrical limiting slide grooves are longitudinally opened on the lower surface of the central top seat, and the lifting slide is slidably provided in each of the limiting slides. The electric telescopic cylinder is also fixed to the lower surface of the lifting slide, and the clamping card is also fixed to the lower telescopic end of the electric telescopic cylinder. The horizontal clamping plate is also slidably provided in the clamping card; The center clamping transfer module is also provided on the inner top surface of the fourth slide.

7. The gantry bending device for a tiller boat according to claim 6, characterized in that: A second communication port is formed on the vertical portion of the second slide, a second vertical plate is fixedly mounted on the upper surface of the C-shaped enclosure, the second vertical plate is arranged on the opposite side of the sliding drive motor, a second side plate is welded to the inner side wall of the second vertical plate, and the second side plate is arranged opposite the second communication port; A first lower die seat is fixed on the inner side wall of the second side plate, and the second bending mechanism includes a first bending lower die fixedly mounted on the first lower die seat, and a first bending upper die matching the first bending lower die is provided on the lower surface of the center top seat.

8. The gantry bending device for a tiller boat according to claim 2, characterized in that: A third communication port is formed on the vertical portion of the third slide, a third vertical plate is fixedly mounted on the upper surface of the C-shaped enclosure, the third vertical plate is arranged on the opposite side of the sliding drive motor, a third side plate is welded to the upper end of the inner side wall of the third vertical plate, the third side plate is arranged opposite to the third communication port and has a size matching that of the third communication port; Two symmetrical fixed sockets are slidably provided on the third side plate, the third bending mechanism includes a bending lower roller fixedly plugged on the fixed sockets, and a bending upper roller is lifted and lowered on the inner top surface of the third slide.

9. The gantry boat frame bending device according to claim 6, characterized in that: A fourth communication port is formed on the vertical portion of the fourth slide, a fourth vertical plate is fixedly mounted on the upper surface of the C-shaped enclosure, the fourth vertical plate is arranged on the opposite side of the sliding drive motor, a fourth side plate is welded to the inner side wall of the fourth vertical plate, and the fourth side plate is arranged opposite to the fourth communication port; A second lower die seat is fixed on the inner side wall of the fourth side plate, and the fourth bending mechanism includes a second bending lower die fixedly mounted on the second lower die seat, and a second bending upper die matching the second bending lower die is provided on the lower surface of the center top seat.

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