Forming machine tool for barrel body of fuel tank

Abstract

The invention relates to the technical field of deformation processing, in particular to a fuel tank barrel body forming processing machine tool which comprises a machine tool body, two groups of rolling units used for bending a plate and a power unit used for pushing the plate to move on the machine tool body, the directions of the two groups of rolling units are opposite, and a long groove is formed in the machine tool body; the rolling unit comprises a first support and a second support, a U-shaped wheel is rotationally arranged on the first support, a cam is rotationally arranged on the second support, and the first support and the U-shaped wheel are both located in the long groove; four times of bending machining can be completed by conducting one-time reciprocating motion on the plate on the lathe bed, the machining efficiency is greatly improved, and multiple times of positioning and operation steps needed by a traditional manual or semi-automatic bending method are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of deformation processing, in particular to a fuel tank barrel forming processing machine tool. Background Art

[0002] With the continuous advancement of technology in the automotive industry and the increasing requirements for environmental protection, the design and manufacture of automotive parts are also developing in a more efficient and environmentally friendly direction. As an important part of the vehicle fuel system, the design and manufacturing quality of the automobile fuel tank directly affects the safety performance and efficiency of the entire vehicle. In large transport vehicles such as vans and trucks, the fuel tank is generally rectangular in shape. This design can not only better adapt to the internal space layout of the vehicle and increase fuel reserves, but also provide a more stable fuel storage environment.

[0003] When processing a fuel tank, generally, a flat plate of a specified size is first bent into a square cylindrical barrel body, and then the joints are welded, and then the two bottom covers of the fuel tank are welded to the two ends of the metal cylinder to form a sealed fuel tank. During the plate bending process, since there are four bending positions on the barrel body, workers are required to measure the positions to be bent on the plate one by one and bend them one by one. This processing method is cumbersome, inefficient, and has a low degree of automation. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a fuel tank barrel forming machine tool, and the specific technical solution adopted is: According to a first aspect of the present invention, a fuel tank barrel forming machine tool is provided, comprising a bed, two sets of rolling units for bending a plate, and a power unit for pushing the plate to move on the bed, the two sets of rolling units are in opposite directions, and a long groove is provided on the bed; The rolling unit comprises a first bracket and a second bracket, the first bracket is rotatably provided with a U-shaped wheel, the second bracket is rotatably provided with a cam, the first bracket and the U-shaped wheel are both located in the long groove, and the distance between the lowest point of the cam and the upper surface of the bed is the thickness of the plate; Among them, the shape of the gap between the U-shaped wheel and the cam is a right angle, and one side of the right angle is horizontal and the other side is vertical. The first bracket is provided with a first motor and a transmission wheel for providing power for the rotation of the U-shaped wheel. A first pushing structure is provided between the two second brackets, and a second pushing structure is provided between the two first brackets. The first pushing structure is used to adjust the distance between the two cams, and the second pushing structure is used to adjust the distance between the two U-shaped wheels.

[0005] Furthermore, the rolling unit further comprises two guide groups, the guide groups comprising a first auxiliary wheel, a second auxiliary wheel and a third bracket configured on the first auxiliary wheel and the second auxiliary wheel, the first auxiliary wheel being rotatably mounted on the first bracket via the third bracket, and the second auxiliary wheel being rotatably mounted on the second bracket via the third bracket; The gap between the first auxiliary wheel and the second auxiliary wheel in the guide group is a plate channel, one of which is vertical and the other is horizontal.

[0006] Further, the first pushing structure includes a vertical plate and a plurality of telescopic units mounted on the vertical plate, the plurality of telescopic units are arranged vertically in pairs on the vertical plate, and the telescopic units can perform telescopic movement in the horizontal direction; The telescopic unit includes a fixed cylinder rotatably arranged on the side wall of the vertical plate, a first slide cylinder slidably arranged in the fixed cylinder and a second slide cylinder slidably arranged in the first slide cylinder, the fixed cylinder, the first slide cylinder and the second slide cylinder are all in polygonal shapes. The shapes of the fixed cylinder, the first slide cylinder and the second slide cylinder are all polygonal shapes. A first threaded rod is arranged in the second slide cylinder, one end of the first threaded rod is rotatably arranged with a support plate, the support plate is slidably installed on the inner wall of the second slide cylinder along the axis direction of the second slide cylinder, and the other end of the first threaded rod is rotatably connected to a connecting ring, and the connecting ring is fixed to the inner wall of the first slide cylinder, and the first threaded sleeve is screwed on the outer wall of the first threaded rod, and the first threaded sleeve is fixed to the inner wall of the second slide cylinder. The first threaded rod is hollow inside, and the second threaded rod is arranged in the first threaded rod. A guide groove along the axis direction of the second threaded rod is opened on the outer wall of the first threaded rod for use with the guide groove, and a second threaded sleeve is screwed on the outer wall of the second threaded rod, and the second threaded sleeve is fixed to the inner wall of the first slide cylinder; The second threaded rod is fixedly connected to the vertical plate, and the second slide cylinder is rotatably connected to the second bracket.

[0007] Furthermore, a plurality of support shafts are inserted and fixed on the vertical plate, and the two ends of the support shafts are respectively fixedly connected to the two second threaded rods in the two pairs of telescopic units, and support rings are rotatably arranged on the outer walls of the support shafts on the left and right sides of the vertical plate, and the support rings are fixedly connected to the fixed cylinder, and the circumferential outer wall of the support ring is arranged as a conical surface, and a worm gear is arranged on the conical surface; The bed is provided with a top frame for supporting, a second motor is fixed on the top frame, a slide groove is provided at the output end of the second motor, the slide groove is located between two support rings on the support shaft, and the slide groove is meshed with the worm gears on the two support rings on each support shaft, and the vertical plate is fixed on the top frame.

[0008] Furthermore, the second pushing structure includes a slide groove opened at the bottom of the long groove, the first bracket is slidably installed in the slide groove, and two docking third threaded rods are rotatably arranged in the slide groove. The threads of the two third threaded rods have opposite rotation directions, and the two third threaded rods pass through the two first brackets respectively, and the third threaded rod is threadedly connected to the first bracket, and a third motor for providing power to a third threaded rod is arranged on the bed.

[0009] Further, the power unit includes a fourth bracket installed at the bottom of the top frame, a fourth motor is arranged on the fourth bracket, a second worm is arranged at the output end of the fourth motor, two worm wheels are meshed on the second worm, a conveying wheel is coaxially arranged on each worm wheel, and the conveying wheel is rotatably mounted on the fourth bracket; Among them, two conveying wheels are respectively located on the left and right sides of the long groove, and the conveying wheels are used to convey the plate to move on the bed.

[0010] Furthermore, a plurality of conveying columns are rotatably arranged on the upper surface of the bed.

[0011] Furthermore, a vertical beam is vertically fixed on the bed, and the top frame is vertically slidably installed on the vertical beam. A fifth motor is fixed on the vertical beam, and a fourth threaded rod is arranged at the output end of the fifth motor. The fourth threaded rod passes through the top frame and is threadedly connected to each other.

[0012] The beneficial effects of the present invention are: By performing one reciprocating motion of the plate on the bed, four bending processes can be completed, which greatly improves the processing efficiency and reduces the multiple positioning and operation steps required by traditional manual or semi-automatic bending methods; the rolling bending method is used to ensure that the deformation of the plate is uniform and flat during the bending process, reduce the errors caused by manual operation, and improve the quality and consistency of the product; by automatically conveying and bending the plate, the dependence on manual labor is reduced, the labor intensity is reduced, and the level of production automation is improved; through the first pushing structure and the second pushing structure, the distance between the U-shaped wheel and the cam can be flexibly adjusted to adapt to plates of different sizes and thicknesses, so that the machine tool has high versatility and flexibility; the machine tool has a simple structure, is easy to operate, and is easy to assemble and maintain; in summary, the fuel tank barrel forming machine tool not only solves the problems of low efficiency and poor precision in traditional processing methods, but also brings new technological breakthroughs to the automotive parts manufacturing industry through a high degree of automation and flexibility, and promotes the technological progress and development of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the cross-section structure of the middle bed; Figure 3 yes Figure 2 The structural diagram of the middle rolling unit; Figure 4 is a schematic diagram of a top frame and a structure thereon in an embodiment of the present invention; Figure 5 is a schematic diagram of a first pushing structure in an embodiment of the present invention; Figure 6 yes Figure 5 Schematic diagram of the structure of the first threaded rod.

[0015] Reference numerals: 1. bed; 2. long groove; 3. rolling unit; 4. first bracket; 5. U-shaped wheel; 6. second bracket; 7. cam; 8. first motor; 9. transmission wheel; 10. first auxiliary wheel; 11. second auxiliary wheel; 12. third bracket; 13. vertical plate; 14. fixed cylinder; 15. first slide cylinder; 16. second slide cylinder; 17. first threaded rod; 18. support plate; 19. connecting ring; 20. first threaded sleeve; 21. second threaded rod; 22. guide groove; 23. second threaded sleeve; 24. support shaft; 25. support ring; 26. first worm; 27. top frame; 28. second motor; 29. ​​slide groove; 30. third threaded rod; 31. third motor; 32. fourth bracket; 33. fourth motor; 34. second worm; 35. worm wheel; 36. conveying wheel; 37. conveying column; 38. vertical beam; 39. fifth motor; 40. fourth threaded rod. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 6 As shown, the fuel tank barrel forming machine tool of the present invention comprises a bed 1, two groups of rolling units 3 for bending a plate, and a power unit for pushing the plate to move on the bed 1, the two groups of rolling units 3 are opposite to each other, and a long groove 2 is opened on the bed 1; The rolling unit 3 includes a first bracket 4 and a second bracket 6, a U-shaped wheel 5 is rotatably provided on the first bracket 4, and a cam 7 is rotatably provided on the second bracket 6, the first bracket 4 and the U-shaped wheel 5 are both located in the long groove 2, and the distance between the lowest point of the cam 7 and the upper surface of the bed 1 is the thickness of the plate; Among them, the shape of the gap between the U-shaped wheel 5 and the cam 7 is a right angle, and one side of the right angle is horizontal and the other side is vertical. The first bracket 4 is provided with a first motor 8 and a transmission wheel 9 for providing power for the rotation of the U-shaped wheel 5. A first pushing structure is provided between the two second brackets 6, and a second pushing structure is provided between the two first brackets 4. The first pushing structure is used to adjust the distance between the two cams 7, and the second pushing structure is used to adjust the distance between the two U-shaped wheels 5.

[0020] In detail, since the shape of the gap between the U-shaped wheel 5 and the cam 7 is a right angle, and one side of the right angle is horizontal and the other side is vertical, the U-shaped wheel 5 and the cam 7 are both inclined at 45°, and the U-shaped wheel 5 and the cam 7 are coplanar, the angle between the two cams 7 is 90°, and the angle openings of the two cams 7 are facing downward, the vertical connection direction of the two sets of rolling units 3 is perpendicular to the moving direction of the plate on the bed 1, and since the shape of the gap between the U-shaped wheel 5 and the cam 7 is a right angle, it is only necessary to make the cross-sectional shape of the circumferential outer wall of the cam 7 an outward convex arc, and the cross-sectional shape of the circumferential outer wall of the U-shaped wheel 5 is composed of an inward concave arc and straight lines on both sides of the arc, so that when the plate passes between the U-shaped wheel 5 and the cam 7, the cam 7 presses part of the plate into the U-shaped wheel 5 and deforms the plate, thereby causing the plate to be deformed from a straight line. The shape is transformed into a right angle, and the plate can be rolled and bent by continuous rotation of the U-shaped wheel 5 and the cam 7 and the conveying of the plate. Of course, in order to facilitate the plate to smoothly enter between the U-shaped wheel 5 and the cam 7, manual assisted pushing or other pushing structures can also be used. The first bracket 4 and the second bracket 6 are mainly used to support the U-shaped wheel 5 and the cam 7. Since the two groups of rolling units 3 are arranged relatively to each other, when the plate passes through the two groups of rolling units 3 on the bed 1, two positions on the plate can be rolled and bent at right angles. The first pushing structure and the second pushing structure can be used to adjust the position of the U-shaped wheel 5 and the cam 7 on the rolling unit 3, and the U-shaped wheel 5 and the cam 7 on the rolling unit 3 always need to be relatively still. The power unit on the bed 1 is mainly used to provide power for the movement of the plate on the bed 1.

[0021] When in use, the U-shaped wheel 5 is driven to rotate by the first motor 8 and the transmission wheel 9, the plate is placed on one side of the upper surface of the bed 1, and the power unit is used to push the plate to move. When the plate passes through the positions of the two groups of rolling units 3, the U-shaped wheel 5 and the cam 7 on the rolling unit 3 roll and bend the plate. Part of the plate that has passed the rolling unit 3 is deformed from a straight line to a right angle. After the plate passes through the two groups of rolling units 3, the positions of the two groups of rolling units 3 are adjusted by the first pushing unit and the second pushing unit, so that the two groups of rolling units 3 are close to each other to the specified position, the power unit is operated in the reverse direction and the plate is pushed to move in the reverse direction. The plate passes through the rolling and bending processing of the two groups of rolling units 3 again in the reverse direction. At this time, the two new bends are located between the two original bends. When the plate moves to the initial position, the plate is After four bending processes, the plate is transformed from a flat shape into a square cylinder, that is, the plate bending process is completed. It should be pointed out here that since a supporting structure needs to be set on the cam 7 to support the cam 7, when the plate is bent, the positions where the two ends of the plate are butted against each other will be separated, that is, due to the action of gravity or the limitation of the supporting structure, the two ends of the plate are not in a cylindrical shape during the bending process. Only after the subsequent welding is completed can a cylindrical shape be formed. This can avoid collision or obstruction between the plate and the structure on the machine tool. This processing method only requires the plate to perform a reciprocating motion on the bed 1 to complete the bending process of the plate. The processing method is simple and the work efficiency is high. The rolling bending method can make the deformation of the plate more uniform and smooth, and the degree of automation is high.

[0022] By performing one reciprocating motion of the plate on the bed 1, four bending processes can be completed, which greatly improves the processing efficiency and reduces the multiple positioning and operation steps required by the traditional manual or semi-automatic bending methods. The rolling bending method is used to ensure that the deformation of the plate is uniform and smooth during the bending process, reduce the errors caused by manual operation, and improve the quality and consistency of the product. By automatically conveying and bending the plate, the dependence on manual labor is reduced, the labor intensity is reduced, and the level of production automation is improved. Through the first pushing structure and the second pushing structure, the distance between the U-shaped wheel 5 and the cam 7 can be flexibly adjusted to adapt to plates of different sizes and thicknesses, so that the machine tool has high versatility and flexibility. The machine tool has a simple structure, is easy to operate, and is easy to assemble and maintain. In summary, the fuel tank barrel forming processing machine tool not only solves the problems of low efficiency and poor precision in traditional processing methods, but also brings new technological breakthroughs to the automotive parts manufacturing industry through a high degree of automation and flexibility, and promotes the technological progress and development of the industry.

[0023] Furthermore, the rolling unit 3 further includes two guide groups, the guide groups including a first auxiliary wheel 10, a second auxiliary wheel 11 and a third bracket 12 configured on the first auxiliary wheel 10 and the second auxiliary wheel 11, the first auxiliary wheel 10 is rotatably mounted on the first bracket 4 through the third bracket 12, and the second auxiliary wheel 11 is rotatably mounted on the second bracket 6 through the third bracket 12; The gap between the first auxiliary wheel 10 and the second auxiliary wheel 11 in the guide group is a plate channel, one of which is vertical and the other is horizontal.

[0024] In detail, the plate channel can be used for the passage of plates. After the plates are rolled and bent by the U-shaped wheel 5 and the cam 7, the plates at the processing position are in a right angle. At this time, part of the plates on the two sides of the right angle will be transported through the two plate channels. The first auxiliary wheel 10 and the second auxiliary wheel 11 will provide auxiliary support for the plates, thereby avoiding shaking of the plates and affecting the bending effect, thereby improving processing accuracy and processing stability.

[0025] Further, the first pushing structure includes a vertical plate 13 and a plurality of telescopic units mounted on the vertical plate 13, the plurality of telescopic units are arranged vertically in pairs on the vertical plate 13, and the telescopic units can perform telescopic movement in the horizontal direction; The telescopic unit includes a fixed cylinder 14 rotatably arranged on the side wall of the vertical plate 13, a first slide cylinder 15 slidably sleeved in the fixed cylinder 14, and a second slide cylinder 16 slidably sleeved in the first slide cylinder 15. The fixed cylinder 14, the first slide cylinder 15 and the second slide cylinder 16 are all polygonal in shape. A first threaded rod 17 is arranged in the second slide cylinder 16. A support plate 18 is rotatably arranged at one end of the first threaded rod 17. The support plate 18 is slidably installed on the inner wall of the second slide cylinder 16 along the axial direction of the second slide cylinder 16. The other end of the first threaded rod 17 is rotatably connected to a connecting ring 19. The connecting ring 19 is connected to the second slide cylinder 16. 9 is fixed on the inner wall of the first slide cylinder 15, and a first threaded sleeve 20 is screwed on the outer wall of the first threaded rod 17, and the first threaded sleeve 20 is fixed on the inner wall of the second slide cylinder 16. The first threaded rod 17 is hollow inside, and a second threaded rod 21 is arranged in the first threaded rod 17. A guide groove 22 along the axis direction of the second threaded rod 21 is opened on the outer wall of the second threaded rod 21. An edge used in conjunction with the guide groove 22 is arranged on the inner wall of the first threaded rod 17. A second threaded sleeve 23 is screwed on the outer wall of the second threaded rod 21, and the second threaded sleeve 23 is fixed on the inner wall of the first slide cylinder 15; The second threaded rod 21 is fixedly connected to the vertical plate 13 , and the second slide cylinder 16 is rotatably connected to the second bracket 6 .

[0026] In detail, the vertical plate 13 is used to support multiple groups of telescopic units. The vertical plate 13 is vertical. There are multiple groups of telescopic units on the left side of the vertical plate 13, and there are also multiple groups of telescopic units on the right side of the vertical plate 13. The two groups of telescopic units on the left and right sides of the vertical plate 13 at the same height position on the vertical plate 13 are arranged in pairs. Since the fixed cylinder 14, the first slide cylinder 15 and the second slide cylinder 16 have the same shape, when the fixed cylinder 14 rotates on the vertical plate 13, the first slide cylinder 15 and the second slide cylinder 16 will rotate synchronously, the second threaded rod 21 and the first threaded rod 17 cannot rotate, and the support plate 18 supports the first threaded rod 17. The first slide cylinder 15 in the rotating state will drive the second threaded sleeve 23 to rotate on the second threaded rod 21. Since the second threaded sleeve 23 and the second threaded rod 21 are threadedly connected, the first slide cylinder 15 will extend outward on the fixed cylinder 14. At this time, the first slide cylinder 15 uses the connecting ring 19 The first and second slide cylinders 15 are in a state of synchronous movement, and the first and second slide cylinders 16 are in a state of synchronous movement. The first and second slide cylinders 16 are in a state of synchronous movement, and the first and second slide cylinders 16 are in a state of synchronous movement. The first and second slide cylinders 16 are in a state of synchronous movement, and the first and second slide cylinders 15 are in a state of synchronous movement. The first and second slide cylinders 16 are in a state of synchronous movement, and the first and second slide cylinders 15 are in a state of synchronous movement. The first and second slide cylinders 15 are in a state of synchronous movement, and the first and second slide cylinders 15 are in a state of synchronous movement. The movement of the second slide cylinder 16 is to push the second bracket 6 to move, thereby separating the second brackets 6 on the two groups of rolling units 3 from each other. The setting of multiple groups of telescopic units can ensure that the relative movement of the two second brackets 6 is more stable. In this way, the distance between the two cams 7 can be adjusted by multiple groups of telescopic units.

[0027] It should be noted that, since the first threaded rod 17 cannot be rotated, it is necessary to use the edge and the guide groove 22 to make the first threaded rod 17 and the second threaded rod 21 only able to slide relative to each other but unable to rotate relative to each other.

[0028] Of course, in actual use, the specific number of sections of the telescopic unit can be adjusted as needed, and since there will be a vertical part after the plate is bent, in order to avoid the telescopic unit interfering with the vertical part of the plate, it is necessary to adopt a telescopic unit structure. Moreover, the telescopic unit in this case can achieve the purpose of synchronous telescopic expansion and contraction of multiple sections, and its stability and support strength are good.

[0029] Furthermore, a plurality of support shafts 24 are inserted and fixed on the vertical plate 13, and the two ends of the support shaft 24 are respectively fixedly connected to the two second threaded rods 21 in the two pairs of telescopic units. Support rings 25 are rotatably arranged on the outer walls of the support shafts 24 on the left and right sides of the vertical plate 13, and the support rings 25 are fixedly connected to the fixed cylinder 14. The circumferential outer wall of the support ring 25 is arranged as a conical surface, and a worm gear is arranged on the conical surface. The bed 1 is provided with a top frame 27 for supporting, a second motor 28 is fixed on the top frame 27, a slide groove 29 is provided at the output end of the second motor 28, the slide groove 29 is located between the two support rings 25 on the support shaft 24, and the slide groove 29 is meshed with the worm gears on the two support rings 25 on each support shaft 24, and the vertical plate 13 is fixed on the top frame 27.

[0030] In detail, the top frame 27 is mainly used to support the vertical plate 13 and multiple telescopic units thereon. The second motor 28 can provide rotational power for the slide slot 29. The slide slot 29 drives the two support rings 25 on each support shaft 24 to rotate synchronously. The support ring 25 drives the fixed cylinder 14 to rotate, thereby making the telescopic structure perform telescopic movement. The support shaft 24 provides fixed support for the second threaded rod 21.

[0031] Since the fixed cylinder 14 needs to rotate, the first threaded rod 17 and the second threaded rod 21 are stationary, and the second threaded rod 21 is located on the inner side of the fixed cylinder 14, it is necessary to locate the vertical plate 13 in the middle of the support shaft 24 and to provide support rings 25 on the support shafts 24 on both sides of the vertical plate 13 to realize structural connection and transmission of kinetic energy.

[0032] Furthermore, the second pushing structure includes a slide groove 29 opened at the bottom of the long groove 2, and the first bracket 4 is slidably installed in the slide groove 29. Two docking third threaded rods 30 are rotatably arranged in the slide groove 29. The threads of the two third threaded rods 30 are rotated in opposite directions. The two third threaded rods 30 pass through the two first brackets 4 respectively, and the third threaded rod 30 is threadedly connected to the first bracket 4. A third motor 31 for providing power to a third threaded rod 30 is arranged on the bed 1.

[0033] In detail, the third motor 31 can drive the two third threaded rods 30 to rotate synchronously. Since the threads of the two third threaded rods 30 have opposite rotation directions, the two third threaded rods 30 will push the two first brackets 4 to move in the opposite direction synchronously, and the first bracket 4 slides in the slide groove 29.

[0034] Further, the power unit includes a fourth bracket 32 ​​installed at the bottom of the top frame 27, a fourth motor 33 is arranged on the fourth bracket 32, a second worm 34 is arranged at the output end of the fourth motor 33, two worm wheels 35 are meshed on the second worm 34, a conveying wheel 36 is coaxially arranged on each worm wheel 35, and the conveying wheel 36 is rotatably mounted on the fourth bracket 32; The two conveying wheels 36 are respectively located on the left and right sides of the long slot 2 , and the conveying wheels 36 are used to convey the plate to move on the bed 1 .

[0035] In detail, the two conveying wheels 36 are respectively located on the left and right sides of the vertical plane where the two groups of rolling units 3 are located. The fourth bracket 32 ​​provides support for the fourth motor 33. The fourth motor 33 can drive the two conveying wheels 36 to rotate synchronously through the second worm 34 and the two worm gears 35. When the plate is transported between one conveying wheel 36 and the bed 1, the rotating conveying wheel 36 will push the plate toward the two groups of rolling units 3. When the plate is bent and moved out of the rolling unit 3, the other conveying wheel 36 will contact the plate and continue to convey the plate. When the plate needs to be moved in the opposite direction, the two conveying wheels 36 can be rotated in the opposite direction.

[0036] Furthermore, a plurality of conveying columns 37 are rotatably arranged on the upper surface of the bed 1 .

[0037] In detail, since the plate needs to move on the bed 1 , the provision of the conveying column 37 can reduce the friction between the plate and the bed 1 .

[0038] Furthermore, a vertical beam 38 is vertically fixed on the bed 1, and the top frame 27 is vertically slidably installed on the vertical beam 38. A fifth motor 39 is fixed on the vertical beam 38, and a fourth threaded rod 40 is provided at the output end of the fifth motor 39. The fourth threaded rod 40 passes through the top frame 27 and is threadedly connected to each other.

[0039] In detail, since it is necessary to process plates of different thicknesses, it is necessary to adjust the distance between the cam 7 and the U-shaped wheel 5. At this time, the distance between the cam 7 and the U-shaped wheel 5 can be adjusted by utilizing the sliding movement of the top frame 27 on the vertical beam 38 and the movement of the first pushing structure to adjust the horizontal position of the cam 7. When the top frame 27 moves, it will drive the conveying wheel 36 to move synchronously, so that the conveying wheel 36 and the cam 7 can always roll and convey the plates.

[0040] The vertical beam 38 provides support for the top frame 27, and the fifth motor 39 can drive the fourth threaded rod 40 to rotate, and the fourth threaded rod 40 can convey the top frame 27 to move in the vertical direction.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Fuel tank barrel forming machine tool, characterized in that: It includes a bed, two sets of rolling units for bending the plate and a power unit for pushing the plate to move on the bed, the two sets of rolling units are in opposite directions, and a long groove is opened on the bed; The rolling unit comprises a first bracket and a second bracket, the first bracket is rotatably provided with a U-shaped wheel, the second bracket is rotatably provided with a cam, the first bracket and the U-shaped wheel are both located in the long groove, and the distance between the lowest point of the cam and the upper surface of the bed is the thickness of the plate; Among them, the shape of the gap between the U-shaped wheel and the cam is a right angle, and one side of the right angle is horizontal and the other side is vertical. The first bracket is provided with a first motor and a transmission wheel for providing power for the rotation of the U-shaped wheel. A first pushing structure is provided between the two second brackets, and a second pushing structure is provided between the two first brackets. The first pushing structure is used to adjust the distance between the two cams, and the second pushing structure is used to adjust the distance between the two U-shaped wheels.

2. The fuel tank barrel forming machine tool according to claim 1, characterized in that: The rolling unit further includes two guide groups, the guide groups including a first auxiliary wheel, a second auxiliary wheel and a third bracket configured on the first auxiliary wheel and the second auxiliary wheel, the first auxiliary wheel being rotatably mounted on the first bracket via the third bracket, and the second auxiliary wheel being rotatably mounted on the second bracket via the third bracket; The gap between the first auxiliary wheel and the second auxiliary wheel in the guide group is a plate channel, one of which is vertical and the other is horizontal.

3. The fuel tank barrel forming machine tool according to claim 2, characterized in that: The first pushing structure includes a vertical plate and a plurality of telescopic units mounted on the vertical plate, the plurality of telescopic units are arranged vertically in pairs on the vertical plate, and the telescopic units can perform telescopic movement in the horizontal direction; The telescopic unit includes a fixed cylinder rotatably arranged on the side wall of the vertical plate, a first slide cylinder slidably arranged in the fixed cylinder and a second slide cylinder slidably arranged in the first slide cylinder, the fixed cylinder, the first slide cylinder and the second slide cylinder are all in polygonal shapes. The shapes of the fixed cylinder, the first slide cylinder and the second slide cylinder are all polygonal shapes. A first threaded rod is arranged in the second slide cylinder, one end of the first threaded rod is rotatably arranged with a support plate, the support plate is slidably installed on the inner wall of the second slide cylinder along the axis direction of the second slide cylinder, and the other end of the first threaded rod is rotatably connected to a connecting ring, and the connecting ring is fixed to the inner wall of the first slide cylinder, and the first threaded sleeve is screwed on the outer wall of the first threaded rod, and the first threaded sleeve is fixed to the inner wall of the second slide cylinder. The first threaded rod is hollow inside, and the second threaded rod is arranged in the first threaded rod. A guide groove along the axis direction of the second threaded rod is opened on the outer wall of the first threaded rod for use with the guide groove, and a second threaded sleeve is screwed on the outer wall of the second threaded rod, and the second threaded sleeve is fixed to the inner wall of the first slide cylinder; The second threaded rod is fixedly connected to the vertical plate, and the second slide cylinder is rotatably connected to the second bracket.

4. The fuel tank barrel forming machine tool according to claim 3 is characterized in that: A plurality of support shafts are inserted and fixed on the vertical plate, and the two ends of the support shafts are respectively fixedly connected to the two second threaded rods in the two pairs of telescopic units. Support rings are rotatably arranged on the outer walls of the support shafts on the left and right sides of the vertical plate, and the support rings are fixedly connected to the fixed cylinder. The circumferential outer wall of the support ring is arranged as a conical surface, and a worm gear is arranged on the conical surface. The bed is provided with a top frame for supporting, a second motor is fixed on the top frame, a slide groove is provided at the output end of the second motor, the slide groove is located between two support rings on the support shaft, and the slide groove is meshed with the worm gears on the two support rings on each support shaft, and the vertical plate is fixed on the top frame.

5. The fuel tank barrel forming machine tool according to claim 4, characterized in that: The second pushing structure includes a slide groove opened at the bottom of the long groove, the first bracket is slidably installed in the slide groove, and two docking third threaded rods are rotatably arranged in the slide groove. The threads of the two third threaded rods are rotated in opposite directions. The two third threaded rods pass through the two first brackets respectively, and the third threaded rod is threadedly connected to the first bracket. A third motor for providing power to a third threaded rod is arranged on the bed.

6. The fuel tank barrel forming machine tool according to claim 5, characterized in that: The power unit comprises a fourth bracket mounted on the bottom of the top frame, a fourth motor is arranged on the fourth bracket, a second worm is arranged at the output end of the fourth motor, two worm wheels are meshed on the second worm, a conveying wheel is coaxially arranged on each worm wheel, and the conveying wheel is rotatably mounted on the fourth bracket; Among them, two conveying wheels are respectively located on the left and right sides of the long groove, and the conveying wheels are used to convey the plate to move on the bed.

7. The fuel tank barrel forming machine tool according to claim 6, characterized in that: A plurality of conveying columns are rotatably arranged on the upper surface of the bed.

8. The fuel tank barrel forming machine tool according to claim 7, characterized in that: A vertical beam is vertically fixed on the bed, and a top frame is vertically slidably installed on the vertical beam. A fifth motor is fixed on the vertical beam, and a fourth threaded rod is arranged at the output end of the fifth motor. The fourth threaded rod passes through the top frame and is threadedly connected to each other.

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