Aircraft oil way pipeline bending correcting and cutting integrated equipment

Abstract

The invention relates to the field of mechanical combination machining of oil-way pipelines, and discloses an aircraft oil-way pipeline bending correcting and cutting integrated device which comprises an integrated machine base, a pipe bending base is connected to the right end of the integrated machine base, and a wheel outer support is rotationally arranged in the middle of the upper end of the pipe bending base; a pipe bending main wheel acting on an oil pipe is arranged in the wheel outer support, the left end of the integrated machine base is connected with a vertical partition plate, and a positioning groove allowing the oil pipe to penetrate through is formed in the middle of the vertical partition plate. The anti-skid curved pressing pieces, the inclined sliding faces and the arc sliding heads of the pressing rods are designed to generate extrusion acting force in the relative movement process, the pressing rods are forced to move downwards, the anti-skid curved pressing pieces are driven to press downwards, and the two sets of anti-skid curved pressing pieces jointly conduct anti-skid locking on the long pipe part and the short pipe part; on one hand, the anti-skid curved pressing piece is used for positioning and fixing the oil pipe in the transferring and correcting process, and on the other hand, the anti-skid curved pressing piece is used for positioning and fixing the cut section of the oil pipe in the cutting process.

Description

Technical Field

[0001] This invention relates to the field of mechanical assembly processing of oil pipelines, and in particular to an integrated equipment for bending, straightening and cutting of aircraft oil pipelines. Background Technology

[0002] Aircraft fuel lines are the "blood vessels" of an aircraft, responsible for the safe and reliable transport of critical fluids such as fuel, hydraulic oil, and lubricating oil under extreme environments such as high pressure, high temperature, and vibration. They include fuel system lines, hydraulic system lines, lubrication system lines, and bleed air system lines, and are mainly made of aluminum alloy (lightweight and corrosion-resistant), stainless steel (high strength and corrosion-resistant), and titanium alloy (high temperature resistance and high strength). The raw materials for aircraft fuel lines require a series of processing techniques such as cutting, bending, straightening, and welding to meet the usage requirements, thus requiring aircraft fuel line processing equipment.

[0003] Existing equipment for processing aircraft fuel lines suffers from several technical defects. First, the cutting, bending, and straightening mechanisms operate independently, lacking coordination and resulting in a lack of intelligence, programming, and automation. Second, when straightening pipes, the bent pipes are difficult to fix due to their shape changes, are prone to loosening during stamping, and have insufficient positioning accuracy, ultimately leading to poor straightening results. Third, the cutting blades currently used for pipe cutting are bulky, taking up space, and require additional custom-designed rotating devices to drive the entire pipe to rotate and cut, resulting in high overall costs.

[0004] In summary, considering that existing facilities cannot meet the operational needs, we propose an integrated equipment for bending correction and cutting of aircraft fuel lines. Summary of the Invention

[0005] The main objective of this invention is to provide an integrated device for bending correction and cutting of aircraft fuel lines, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An integrated device for bending, straightening, and cutting aircraft fuel lines includes an integrated base. A pipe bending seat is connected to the right end of the integrated base. An outer support is rotatably mounted at the center of the upper end of the pipe bending seat. A main bending wheel acting on the fuel line is installed inside the outer support. A pipe bending arm is connected to the side of the outer support. A guide bending wheel acting on the fuel line is installed inside the pipe bending arm. A rotary bearing is installed at the center of the upper surface of the outer support. A positioning roller fixed to the pipe bending seat is sleeved inside the rotary bearing. A pipe bending clamp acting on the fuel line is provided on the integrated base.

[0007] As a preferred embodiment of the integrated equipment for bending, straightening and cutting aircraft oil pipelines according to the present invention, wherein: the inside of the main bending wheel is provided with an inner groove extending outward, a push rod motor is horizontally fixed inside the inner groove, an electric push rod is movably arranged outward inside the push rod motor, and an inner pushing block acting on the oil pipe is welded to the end of the electric push rod, the inner pushing block and the inner groove of the wheel are matched.

[0008] As a preferred embodiment of the integrated equipment for bending, straightening and cutting aircraft oil pipelines according to the present invention, the integrated base has a first linear limiting groove horizontally opened at the middle position of the upper end face, a first precision lead screw is horizontally arranged inside the linear limiting groove, the two ends of the first precision lead screw are sleeved with first bearing seats, the right end of the first precision lead screw extends into the inside of the bending pipe seat and is connected to a lead screw motor through a coupling, and a first displacement seat that matches the first linear limiting groove is movably arranged on the first precision lead screw.

[0009] As a preferred embodiment of the integrated equipment for bending, straightening, and cutting of aircraft oil pipelines according to the present invention, the following features are provided: a first lead screw nut sleeve for a first precision lead screw to pass through is installed inside the first displacement seat; a bidirectional receiving platform is fixed at the upper end of the first displacement seat; a main support surface for the sliding of the oil supply pipe is provided on the upper surface of the bidirectional receiving platform; guide grooves are symmetrically opened on both sides of the bidirectional receiving platform; an L-shaped positioning arm is movably arranged in each set of guide grooves; a double-headed hydraulic cylinder is fixed at the middle position inside the bidirectional receiving platform; an oil tank assembly is connected to the upper end of the double-headed hydraulic cylinder; hydraulic short rods are movably arranged at both ends of the double-headed hydraulic cylinder; and the ends of the hydraulic short rods are welded to the sides of the corresponding L-shaped positioning arms.

[0010] As a preferred embodiment of the integrated equipment for bending, straightening and cutting aircraft oil pipelines according to the present invention, the upper end face of the L-shaped positioning arm is provided with an auxiliary support surface for sliding the oil supply pipe. The auxiliary support surface and the main support surface are flush with the bottom of the bending main wheel. A pressing groove is provided on the auxiliary support surface extending into the interior of the L-shaped positioning arm. A telescopic plate is movably arranged in the pressing groove. The telescopic plate is connected to the bottom of the pressing groove by two sets of return springs. A side positioning block acting on the oil pipe is connected to the upper end of the telescopic plate. There are a total of 2 sets of side positioning blocks. The upper end of the side positioning block includes two sets of symmetrical extrusion slopes.

[0011] As a preferred embodiment of the integrated equipment for bending, straightening, and cutting aircraft fuel lines according to the present invention, wherein: both sets of L-shaped positioning arms are connected to an outer top seat; a single-head hydraulic cylinder is horizontally arranged on the outer surface of the outer top seat; a horizontal hydraulic rod is movably arranged outward from the inside of the single-head hydraulic cylinder; a linear drive block is connected to the end of the horizontal hydraulic rod; a linear limiting channel for the movement of the linear drive block is opened inside the outer top seat; an inclined sliding surface is opened downward inside the linear drive block; the outer top seat... An internally downward-moving pressure rod is provided. The inner side of the outer top seat has a rod hole for the pressure rod to extend out. The upper end of the pressure rod extends into the linear drive block. The upper end of the pressure rod is provided with an arc-shaped sliding head that interacts with the inclined sliding surface. A spring positioning sleeve for limiting the movement of the pressure rod is riveted inside the outer top seat. A compression spring sleeved on the outside of the pressure rod is fixed between the spring positioning sleeve and the rod hole. An anti-slip curved pressure plate acting on the upper end face of the oil pipe is welded to the lower end face of the pressure rod. Several sets of anti-slip patterns are distributed on the bottom of the anti-slip curved pressure plate.

[0012] As a preferred embodiment of the integrated equipment for bending correction and cutting of aircraft oil pipelines according to the present invention, the integrated base is connected to a vertical partition plate at the left end. A positioning groove for oil supply pipe to pass through is opened in the middle of the vertical partition plate. Two sets of stamping brackets are symmetrically arranged on the back of the vertical partition plate. The interior of the two sets of stamping brackets forms a stamping track that acts on the stamping seat. The stamping seat is provided with two sets of stamping brackets symmetrically distributed vertically in the stamping track. The bent part of the oil pipe passes through the positioning groove and enters the middle position of the stamping track.

[0013] As a preferred embodiment of the integrated equipment for bending, straightening and cutting of aircraft oil pipelines according to the present invention, each set of stamping seats is provided with a stamping moving die that acts on the bent part of the oil pipe. The inside of the stamping moving die is provided with a curved straightening groove. A cylinder rod is fixed at the end of the stamping seat away from the stamping moving die. The cylinder rod extends outward from the inside of the stamping cylinder. There are two sets of stamping cylinders, which are riveted together by connecting sleeves and vertical partitions.

[0014] As a preferred embodiment of the integrated equipment for bending, straightening and cutting of aircraft oil pipelines according to the present invention, wherein: a horizontal top seat is connected to the top right side of the vertical partition, the horizontal top seat is fixed by two sets of support legs and the upper end face of the integrated base, a second linear limiting groove is provided through the middle of the horizontal top seat, a second lead screw is rotatably arranged in the second linear limiting groove, a second bearing seat is sleeved at both ends of the second lead screw, the right end of the second lead screw extends into the motor seat, a second lead screw motor acting on the second lead screw is arranged in the motor seat, and a second displacement seat is movably arranged on the second lead screw.

[0015] As a preferred embodiment of the integrated equipment for bending, straightening, and cutting of aircraft oil pipelines according to the present invention, the second displacement seat is equipped with a second lead screw nut sleeve for the second lead screw to pass through. Symmetrically arranged on both sides of the second lead screw nut sleeve are holes for fixed slide rods to pass through. A swing groove is provided at the bottom of the second displacement seat. A swing arm is movably arranged in the swing groove. The swing arm is sleeved on a swing arm shaft. The swing arm shaft is connected to the inner wall of the second displacement seat through two sets of damping bearings. One end of the swing arm shaft is provided with a plug-in part. The plug-in part extends into the interior of a rotary cylinder. The rotary cylinder is fixed at a lower position on the outer side of the second displacement seat. The working range of the rotary cylinder is 0-140°.

[0016] As a preferred embodiment of the integrated equipment for bending correction and cutting of aircraft oil pipelines according to the present invention, the swing arm has a swing arm through groove at the lower part of its interior. A cutting cylinder is rotatably arranged in the swing arm through groove. The cutting cylinder is connected to the inner wall of the swing arm through groove through two sets of external bearings. A large gear is sleeved on the middle of the outer side of the cutting cylinder. A small gear is meshed on the upper end of the large gear. The small gear is sleeved on the output shaft of a servo motor. The servo motor is fixed inside the swing arm.

[0017] As a preferred embodiment of the integrated equipment for bending correction and cutting of aircraft oil pipelines according to the present invention, the cutting drum has an internal cutting cavity in which an oil supply pipe extends, the oil pipe has a certain arc movement range in the cutting cavity, an installation groove is provided on the wall of the cutting cavity, a cutting motor is fixed in the installation groove, and a cutting wheel that acts on the oil pipe is sleeved on the output shaft of the cutting motor.

[0018] This invention provides an integrated device for straightening and cutting bent aircraft fuel lines, which has the following significant improvements and advantages compared to the prior art: Start the push rod motor, the electric push rod extends, and the concave push block extends out of the inner groove of the wheel, which pushes the entire oil pipe to the left on the curved part, so that it enters the main support surface of the bidirectional receiving platform, and then the long pipe and the short pipe enter the auxiliary support surface, so as to achieve the function of automatic material pushing, saving time and effort.

[0019] The side positioning block is designed so that when the curved part slides on the auxiliary support surface, it will contact the side positioning block and act on the extrusion slope. Gravity will press the entire side positioning block into the pressing groove and smoothly pass through the pressing groove area. The double-headed hydraulic cylinder will work and, after oil is introduced, the two sets of hydraulic short rods will extend synchronously, allowing the side positioning block on the auxiliary support surface to approach the long pipe and the short pipe until it contacts the long pipe and the short pipe, thus achieving the function of accurately positioning the oil pipe. The contact adjustment of the two sets of side positioning blocks can center the misaligned oil pipe, and the automatic correction adjustment function of the two sets of side positioning blocks can be utilized.

[0020] The anti-slip curved pressure plate is designed so that the inclined sliding surface and the arc-shaped sliding head of the pressure rod generate a squeezing force during the relative movement, forcing the pressure rod to move downwards and driving the anti-slip curved pressure plate to press down to the upper end of the long or short pipe section. The two sets of anti-slip curved pressure plates work together to prevent slippage and lock the long and short pipe sections, which has a dual function. On the one hand, the anti-slip curved pressure plate is used to position and fix the oil pipe during transportation and correction. On the other hand, the anti-slip curved pressure plate is used to position and fix the oil pipe section being cut during the cutting process.

[0021] The bent section passes through the positioning groove and enters the middle position of the stamping track. Two sets of stamping cylinders are activated, and the cylinder rods extend to drive the stamping seats to move at high speed along the stamping track. The two sets of stamping moving dies act on the bent section at the same time, so that the bent section deformed by the pipe is stamped and corrected, achieving the purpose of automatic correction. This effectively solves the problem of outward expansion deformation of the bent section caused by the bending of the oil pipe. In addition, the two sets of stamping moving dies can also serve as clamping components to assist in positioning the oil pipe during the cutting process, achieving a linkage effect.

[0022] The servo motor and cutting motor are started synchronously. After a series of transmissions, the large gear is decelerated and rotates, driving the cutting drum to rotate. The cutting blade wheel rotates while making a circular motion, cutting the metal pipe along the way. After one cut, because the long or short pipe is in an eccentric position in the cutting cavity, part of the metal pipe is not cut. The swing arm continues to move downward in an arc, changing the relative position of the long or short pipe in the cutting cavity. The cutting blade wheel continues to cut for another round, completing the cutting of the entire metal pipe. Compared with the traditional cutting method, the cutting blade is smaller and the oil pipe is fixed and does not need to rotate, significantly improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an integrated device for bending correction and cutting of aircraft fuel lines according to the present invention, taken from one direction. Figure 2 This is a schematic diagram of the overall structure of the integrated equipment for bending correction and cutting of aircraft fuel lines according to the present invention from another direction; Figure 3 This is a schematic diagram of the specific structure of the bending tube main wheel of the present invention; Figure 4 This is a schematic diagram of the transmission structure of the first displacement seat of the present invention; Figure 5 This is a top-view structural diagram of the bidirectional storage platform and L-shaped positioning arm of the present invention. Figure 6 This is a schematic diagram of the bidirectional storage platform and L-shaped positioning arm of the present invention from a downward perspective. Figure 7 This is a schematic diagram of the internal structure of the bidirectional storage platform of the present invention; Figure 8 This is a schematic diagram of the specific structure of the side positioning block of the present invention; Figure 9 This is a schematic diagram of the internal structure of the external support of the present invention; Figure 10 This is a schematic diagram of the connection of the stamping moving die of the present invention; Figure 11 This is a schematic diagram of the external structure of the horizontal top seat of the present invention; Figure 12 This is a schematic diagram of the transmission structure of the second displacement seat of the present invention; Figure 13 This is a schematic diagram of the external structure of the second displacement seat of the present invention; Figure 14 This is a schematic diagram of the external structure of the swing arm of the present invention; Figure 15 This is a schematic diagram of the internal connection of the swing arm of the present invention; Figure 16 This is a schematic diagram of the transmission structure of the cutting drum of the present invention; Figure 17 This is a diagram showing the transmission structure of the cutting wheel of the present invention; Figure 18 This is a schematic diagram showing the relative positions during the first eccentric cut of the present invention; Figure 19 This is a schematic diagram showing the relative positions during the second eccentric cutting in this invention.

[0024] In the diagram: 1. Integrated base; 2. Bending seat; 3. Bending clamp; 4. Outer wheel support; 5. Main bending wheel; 6. Bending arm; 7. Bending guide wheel; 8. Rotary bearing; 9. Positioning roller; 10. Inner groove of wheel; 11. Electric actuator; 12. Concave push block; 15. Oil pipe; 20. First linear limiting groove; 21. First precision lead screw; 22. First bearing seat; 23. Lead screw motor; 24. First displacement seat; 25. First lead screw nut sleeve; 26. Bidirectional storage platform; 27. Main support surface; 28. Guide groove; 30. Double-headed hydraulic cylinder; 31. Oil tank assembly; 32. Hydraulic short rod; 33. L-shaped positioning arm; 34. Auxiliary support surface; 35. Pressing groove; 36. Telescopic plate; 37. Return spring; 38. Side positioning block; 39. Extrusion inclined surface; 40. External top seat; 41. Single-head hydraulic cylinder; 42. Horizontal hydraulic rod; 43. Linear drive block; 44. Inclined sliding surface; 45. Pressure rod; 46. Rod hole; 47. Circular arc sliding head; 48. Compression spring; 49. Anti-slip curved pressure plate; 50. Vertical partition; 51. Positioning groove; 52. Stamping bracket; 53. Stamping track; 55. Spring positioning sleeve; 60. Stamping seat; 61. Stamping moving die; 62. Curved correction groove; 63. Cylinder rod; 64. Stamping cylinder; 65. Connecting sleeve; 70. Horizontal top seat; 71. Support leg; 73. Second linear limiting groove; 74. Second lead screw; 75. Second bearing seat; 76. Motor seat; 77. No. 2 lead screw motor; 78. Fixed slide rod; 80. Second displacement seat; 81. Second lead screw nut sleeve; 82. Slide rod hole; 83. Swing groove; 84. Swing arm; 85. Swing arm shaft; 86. Damping bearing; 87. Insertion part; 88. Rotary cylinder; 90. Swing arm through groove; 91. Cutting drum; 92. Outer bearing; 93. Large gear; 94. Small gear; 95. Servo motor; 100. Cutting inner cavity; 101. Mounting groove; 102. Cutting motor; 103. Cutting blade wheel. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0026] like Figures 1-10 As shown, this embodiment provides an integrated device for bending, straightening, and cutting aircraft fuel lines. In this embodiment, [the device is described in the original text]. Figure 1 Based on the observation angle (the observation angle is the angle from which the observer is directly facing the drawing), the directional description is consistent with... Figure 1 The drawings show the same "left" and "right" directions, including an integrated base 1. The right end of the integrated base 1 is connected to a pipe bending seat 2. The upper end of the pipe bending seat 2 is centrally located and rotates with an outer wheel bracket 4. The inner part of the outer wheel bracket 4 is equipped with a pipe bending main wheel 5 that acts on the oil pipe 15. The bottom of the pipe bending main wheel 5 is connected to a main wheel shaft, which is connected downward to the motor unit. The side of the outer wheel bracket 4 is connected to a pipe bending arm 6. The inner part of the pipe bending arm 6 is equipped with a pipe bending guide wheel 7 that acts on the oil pipe 15. A rotary bearing 8 is installed in the middle of the upper end face of the outer wheel bracket 4. A positioning roller 9 that is fixed to the pipe bending seat 2 is sleeved inside the rotary bearing 8. The rotary bearing 8 rotates around the positioning roller 9.

[0027] The integrated base 1 is equipped with a pipe bending clamp 3 that acts on the oil pipe 15. The pipe bending clamp 3 has a conventional clamping structure, such as... Figure 1 and Figure 2 As shown.

[0028] Furthermore, the inside of the bending main wheel 5 is provided with an outwardly opening inner groove 10, and a push rod motor is horizontally fixed inside the inner groove 10, such as... Figure 3 As shown.

[0029] Specifically, an electric push rod 11 is installed outwardly inside the push rod motor. A concave pushing block 12, acting on the oil pipe 15, is welded to the end of the electric push rod 11. The concave pushing block 12 fits into the inner groove 10 of the wheel. A retaining step is provided in the inner groove 10 to act on the concave pushing block 12. The outer surface of the concave pushing block 12 is completely consistent and coordinated with the wheel surface of the bent pipe main wheel 5. Figure 3 As shown.

[0030] Furthermore, a first linear limiting groove 20 is horizontally formed at the middle of the upper end face of the integrated base 1. A first precision lead screw 21 is horizontally arranged inside the first linear limiting groove 20. First bearing seats 22 are sleeved at both ends of the first precision lead screw 21. The right end of the first precision lead screw 21 extends into the bend seat 2 and is connected to a lead screw motor 23 via a coupling. A first displacement seat 24 that matches the first linear limiting groove 20 is movably arranged on the first precision lead screw 21. The first linear limiting groove 20 serves as a limiting and guiding function, such as... Figure 1 , Figure 2 and Figure 4 As shown.

[0031] The first displacement seat 24 has a first lead screw nut sleeve 25 installed inside for the first precision lead screw 21 to pass through. The first lead screw nut sleeve 25 contains a helical lead screw nut. A bidirectional storage platform 26 is fixed to the upper end of the first displacement seat 24. The upper surface of the bidirectional storage platform 26 has a main support surface 27 for the sliding of the oil supply pipe 15. Figures 4-6 As shown.

[0032] The bidirectional storage platform 26 has symmetrically arranged guide grooves 28 on both sides, which serve as limiting and guiding mechanisms. Each guide groove 28 contains an L-shaped positioning arm 33. A double-headed hydraulic cylinder 30 is fixed in the middle of the bidirectional storage platform 26. An oil tank assembly 31 is connected to the upper end of the double-headed hydraulic cylinder 30, which includes a supply pump and a return pump. Hydraulic short rods 32 are movably arranged at both ends of the double-headed hydraulic cylinder 30, and the ends of the hydraulic short rods 32 are welded to the sides of the corresponding L-shaped positioning arms 33. Figures 5-7 As shown.

[0033] Furthermore, the upper end face of the L-shaped positioning arm 33 is provided with an auxiliary support surface 34 for the sliding of the oil supply pipe 15. Both the auxiliary support surface 34 and the main support surface 27 are flush with the bottom of the bending main wheel 5, facilitating a smooth transition of the oil pipe 15. A pressing groove 35 extends from the auxiliary support surface 34 into the interior of the L-shaped positioning arm 33. A telescopic plate 36 is movably installed within the pressing groove 35. Figures 5-8 As shown.

[0034] Specifically, the telescopic plate 36 is connected to the bottom of the pressing groove 35 by two sets of return springs 37. The upper end of the telescopic plate 36 is connected to a side positioning block 38 that acts on the oil pipe 15. The side positioning block 38 extends out of the pressing groove 35 in its natural state. The upper end of the side positioning block 38 includes two sets of symmetrical extrusion slopes 39, which are in a smooth, inclined state. Figure 8 As shown.

[0035] Furthermore, both sets of L-shaped positioning arms 33 are connected to outer top seats 40. A single-head hydraulic cylinder 41 is horizontally mounted on the outer surface of the outer top seat 40. A horizontal hydraulic rod 42 extends outward from the inside of the single-head hydraulic cylinder 41. A linear drive block 43 is connected to the end of the horizontal hydraulic rod 42. A linear limiting channel is provided inside the outer top seat 40 for the linear drive block 43 to move. The linear limiting channel serves as a limiting and guiding channel, improving the stability of the linear drive block 43's movement. Figure 7 and Figure 9 As shown.

[0036] The linear drive block 43 has a downward-facing inclined sliding surface 44 inside, with one side higher than the other. A pressure rod 45 is movably mounted downwards inside the outer top seat 40. A rod hole 46 is provided on the inner side of the outer top seat 40 for the pressure rod 45 to extend out, serving as a limiting and guiding point. The upper end of the pressure rod 45 extends into the linear drive block 43, and an arc-shaped sliding head 47 interacts with the inclined sliding surface 44 at the upper end of the pressure rod 45. A spring positioning sleeve 55 is riveted inside the outer top seat 40 to limit the movement of the pressure rod 45. A compression spring 48, sleeved on the outside of the pressure rod 45, is fixed between the spring positioning sleeve 55 and the rod hole 46. The compression spring 48 provides the elastic force to push the pressure rod 45 back upwards. Figure 6 and Figure 9 As shown.

[0037] Among them, the lower end face of the pressure rod 45 is welded with an anti-slip curved pressure plate 49 that acts on the upper end face of the oil pipe 15. The anti-slip curved pressure plate 49 can be made of elastic steel material, which is stretched open by elastic deformation and then deformed back to its original position. Several sets of anti-slip textures are distributed at the bottom of the anti-slip curved pressure plate 49, which has an anti-slip function and prevents the anti-slip curved pressure plate 49 and the oil pipe 15 from sliding relative to each other.

[0038] Furthermore, a vertical partition 50 is connected to the left end of the integrated base 1. A positioning groove 51 for the oil supply pipe 15 is opened in the middle of the vertical partition 50. The positioning groove 51 is flush with the auxiliary support surface 34 and the main support surface 27, and its size is determined according to the width of the bent pipe. Two sets of stamping supports 52 are symmetrically arranged on the back of the vertical partition 50. The interior of the two sets of stamping supports 52 forms a stamping track 53 that acts on the stamping seat 60. The stamping seat 60 accommodates two sets of supports symmetrically distributed vertically within the stamping track 53. The bent portion of the oil pipe 15 passes through the positioning groove 51 and enters the middle position of the stamping track 53. Figure 1 and Figure 2 As shown.

[0039] In this embodiment, each stamping base 60 is provided with a stamping moving die 61 that acts on the bent part of the oil pipe 15. The inside of the stamping moving die 61 is provided with a curved straightening groove 62. A cylinder rod 63 is fixed to the end of the stamping base 60 away from the stamping moving die 61. The cylinder rod 63 extends outward from the inside of the stamping cylinder 64. There are two sets of stamping cylinders 64, which are riveted together by connecting sleeves 65 and vertical partitions 50, respectively. Figure 2 and Figure 10 As shown.

[0040] In this embodiment, when the oil pipe 15 is bent and formed, the top and bottom surfaces will expand and the sides will shrink, resulting in a slight deformation of the bent part. When correcting, only the middle area of ​​the bent part needs to be stamped, and the deformation of the outer area is small and can be ignored.

[0041] In this embodiment, the straight oil pipe 15 is first inserted into the bending arm 6 (at this time, the first displacement seat 24 is in the left position in the first straight limit groove 20), and the bending clamp 3 is used to fix the oil pipe 15 locally. Then, the bending main wheel 5 is driven to rotate, and the bending arm 6 moves 180° in a circle. The bending guide wheel 7 exerts a squeezing force to bend the oil pipe 15. The bent oil pipe 15 includes a bent part, a long part and a short part.

[0042] Then, start the first lead screw motor 23, and the first precision lead screw 21 rotates, causing the first displacement seat 24 to move to the right along the first straight limit groove 20, so that the bidirectional storage platform 26 approaches the bending pipe seat 2. Then, release the bending pipe holder 3, start the push rod motor, and the electric push rod 11 extends. Using the concave push block 12 extending out of the inner groove 10 of the wheel, it acts on the bent part to push the entire oil pipe 15 to the left, slowly leaving the bending pipe seat 2 and entering the main support surface 27 of the bidirectional storage platform 26. Then, let the long pipe part and the short pipe part enter the auxiliary support surface 34. At this time, let the electric push rod 11 retract. When the bent part slides on the auxiliary support surface 34, it will contact the side positioning block 38 and act on the extrusion slope 39. Through gravity, the entire side positioning block 38 is completely pressed into the pressing groove 35. When the bent part crosses the area of ​​the pressing groove 35, under the elastic force of the return spring 37, the side positioning block 38 returns to the upward position and is in the inner area of ​​the long pipe part and the short pipe part.

[0043] At this point, the double-headed hydraulic cylinder 30 is activated. After oil is introduced, the two sets of hydraulic short rods 32 extend synchronously, each driving the L-shaped positioning arm 33 to move outward along the guide groove 28, allowing the side positioning block 38 on the auxiliary support surface 34 to approach the long pipe section and the short pipe section until they contact the long pipe section and the short pipe section (if the oil pipe 15 is misaligned, the contact adjustment of the two sets of side positioning blocks 38 will center the oil pipe 15, and the two sets of side positioning blocks 38 will simultaneously position the long pipe section and the short pipe section). Then, the two sets of single-headed hydraulic cylinders 41 are activated simultaneously, the horizontal hydraulic rod 42 extends, and pushes the linear drive block 43 to move along the linear limit channel. The inclined sliding surface 44 and the arc sliding head 47 of the pressure rod 45 generate a squeezing force during the relative movement, forcing the pressure rod 45 to move downward, driving the anti-slip curved pressure plate 49 to press down to the upper end of the long pipe section or the short pipe section. The two sets of anti-slip curved pressure plates 49 work together to lock the long pipe section and the short pipe section in an anti-slip manner.

[0044] Then, the first displacement seat 24 moves to the left along the first straight limiting groove 20, and the bidirectional receiving platform 26 carries the entire oil pipe 15 to the left until the bent part passes through the positioning groove 51 and enters the middle position of the stamping track 53. At this time, the long pipe part and the short pipe part are limited in the positioning groove 51. At the same time, two sets of stamping cylinders 64 are started, and the cylinder rods 63 extend and drive the stamping seat 60 to move at high speed along the stamping track 53. The two sets of stamping moving dies 61 act on the bent part at the same time, so that the bent part deformed by the bent pipe is stamped and corrected. Example 2

[0045] In this embodiment, a horizontal top seat 70 is connected to the top right side of the vertical partition 50. The horizontal top seat 70 is fixed by two sets of support legs 71 and the upper end face of the integrated base 1. A second linear limiting groove 73 is provided through the middle of the horizontal top seat 70. The second linear limiting groove 73 serves as a limiting and guiding function. A second lead screw 74 is rotatably installed in the second linear limiting groove 73. Both ends of the second lead screw 74 are sleeved with second bearing seats 75. The right end of the second lead screw 74 extends into the motor seat 76. A second lead screw motor 77 that acts on the second lead screw 74 is installed in the motor seat 76. A second displacement seat 80 is movably installed on the second lead screw 74. Figure 1 , Figure 2 , Figure 11 and Figure 12 As shown.

[0046] The second displacement seat 80 has a second lead screw nut sleeve 81 inside for the second lead screw 74 to pass through. The second lead screw nut sleeve 81 contains a helical lead screw nut. Symmetrical openings on both sides of the second lead screw nut sleeve 81 are provided inside the second displacement seat 80 for fixed slide rods 78 to pass through slide rod holes 82. The fixed slide rods 78 are used to improve the stability of the second displacement seat 80. Figure 12 and Figure 13 As shown.

[0047] The second displacement seat 80 has a swing groove 83 at its bottom, within which a swing arm 84 is movably mounted (the positions of the long and short tube sections must be within the swing range of the swing arm 84 during design). The swing arm 84 is sleeved on a swing arm shaft 85, which is connected to the inner wall of the second displacement seat 80 via two sets of damping bearings 86. The damping bearings 86 provide a certain damping force, thereby improving the vibration resistance of the swing arm 84. One end of the swing arm shaft 85 has a plug-in part 87 that extends into the interior of a rotary cylinder 88. The rotary cylinder 88 is fixed to a lower position on the outer side of the second displacement seat 80. Figures 13-15 As shown.

[0048] Furthermore, a swing arm through groove 90 is provided at the lower part of the interior of the swing arm 84. A cutting cylinder 91 is rotatably mounted inside the swing arm through groove 90. The cutting cylinder 91 is connected to the inner wall of the swing arm through groove 90 through two sets of outer bearings 92. Figures 14-16 As shown.

[0049] Among them, a large gear 93 is sleeved on the middle of the outer side of the cutting drum 91, and a small gear 94 is meshed on the upper end of the large gear 93. The small gear 94 is sleeved on the output shaft of the servo motor 95, and the servo motor 95 is fixed inside the swing arm 84. Figure 12 and Figure 16 As shown.

[0050] Specifically, the cutting drum 91 has an internal cutting cavity 100 through which an oil supply pipe 15 extends and passes. The oil pipe 15 has a certain arc-shaped movement range within the cutting cavity 100 (in normal design, this arc will pass through the center of the cutting cavity 100). An installation groove 101 is provided on the wall of the cutting cavity 100, and a cutting motor 102 is fixed within the installation groove 101. A cutting wheel 103, made of diamond material, is sleeved on the output shaft of the cutting motor 102 and acts on the oil pipe 15. Figure 14 , Figure 16 and Figure 17 As shown.

[0051] In this embodiment, after the stamping operation, the two sets of stamping moving dies 61 are positioned on the curved part of the oil pipe 15. The positioning groove 51, in conjunction with its limiting function, locks the entire oil pipe 15. At this time, the swing arm 84 rises above the position of the oil pipe 15 and the outer top seat 40 (e.g., Figure 11(As shown in the diagram, the position of the swing arm 84 is shown). Then, the two sets of anti-slip curved pressure plates 49 are released, allowing the first displacement seat 24 to move to the right along the first straight limiting groove 20. During this process, the long tube and the short tube slide on the auxiliary support surface 34, eventually moving the first displacement seat 24 away from the oil pipe 15. At this point, the second lead screw motor 77 is activated, the second lead screw 74 rotates, and the second displacement seat 80 moves to the right along the second straight limiting groove 73 until the swing arm 84 is positioned on the upper right side of the long tube or the short tube. (When the swing arm 84 is on the upper right side of the long tube or the short tube, after swinging downwards, the swing arm 84 will move to the horizontal right side of the long tube or the short tube, avoiding direct downward swinging and collision between the swing arm 84 and the two parts.) Figure 11 The middle swing arm 84 is closer to the long tube section, and when the swing arm 84 is on the other side, it is closer to the short tube section.

[0052] Next, the rotary cylinder 88 is activated, driving the swing arm shaft 85 to rotate at a certain angle, causing the swing arm 84 to move downwards around the swing groove 83. This causes the cutting drum 91 on the swing arm 84 to move to the horizontal right side of the long or short pipe section. At this time, the second displacement seat 80 moves back to the left along the second linear limiting groove 73, and the cutting drum 91 moves to the left in a straight line. This allows the long or short pipe section of the oil pipe 15, which is in a locked state, to smoothly enter the cutting cavity 100 of the cutting drum 91 during the relative movement. The second displacement seat 80 stops moving only when the cutting blade 103 is aligned with the position to be cut on the long or short pipe section (i.e., the cutting blade 103 is successfully aligned with the position to be cut on the pipe). At this time, the long or short pipe section is in an eccentric position in the cutting cavity 100 and does not contact the cutting blade 103 (when the long or short pipe section is in the center position in the cutting cavity 100, it will contact the cutting blade 103).

[0053] Then, before cutting, the first displacement seat 24 moves to the left along the first straight limiting groove 20, so that the long pipe and the short pipe re-enter the corresponding auxiliary support surface 34. The anti-slip curved pressure plate 49 is used again to press down on the upper end of the long pipe or the short pipe to fix the end of the long pipe and the short pipe (if the end of the long pipe and the short pipe is not fixed, on the one hand, the pipe will be unstable and loose during the cutting process, and on the other hand, the cut-off part will bend down prematurely due to its own weight). Then, the servo motor 95 and the cutting motor 102 are started synchronously. The operation of the servo motor 95 causes the pinion 94 to rotate, which, through meshing, causes the large gear 93 to decelerate and rotate, driving the cutting drum 91 to rotate around the two sets of outer bearings 92, so that the cutting drum 91 The cutting wheel 103 rotates while making a circular motion, cutting the metal pipe it encounters along the way. After one revolution, because the long or short pipe section is in an eccentric position within the cutting cavity 100, a portion of the metal pipe is not cut by the cutting wheel 103. At this point, the swing arm 84 continues to move downwards in an arc, changing the relative position of the long or short pipe section within the cutting cavity 100 (the cutting wheel 103 is pre-positioned to a position where the pipe has already been cut to avoid collisions during position changes). The cutting wheel 103 then completes another revolution, removing the remaining material from the metal pipe and completing the cutting of the entire metal pipe. All of these operation steps are programmed and executed with a single click. Figure 18 and Figure 19 As shown.

[0054] All structural components disclosed in the embodiments need to be adjusted in size and shape according to the actual installation environment, and are not limited to the styles disclosed in the drawings. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. An integrated device for bending, straightening, and cutting aircraft fuel lines, comprising an integrated base (1), characterized in that: The integrated base (1) has a first linear limiting groove (20) horizontally opened at the middle position of the upper end face. A first precision lead screw (21) is horizontally arranged inside the first linear limiting groove (20). A first displacement seat (24) that matches the first linear limiting groove (20) is movably arranged on the first precision lead screw (21). A bidirectional storage platform (26) is fixed at the upper end of the first displacement seat (24). A main support surface (27) for sliding oil supply pipe (15) is provided on the upper end face of the bidirectional storage platform (26). Guide grooves (28) are symmetrically opened on both sides of the bidirectional storage platform (26). An L-shaped positioning arm (33) is movably arranged in each set of guide grooves (28). A double-headed hydraulic cylinder (30) is fixed in the middle of the interior of the bidirectional storage platform (26). An oil tank assembly (31) is connected to the upper end of the double-headed hydraulic cylinder (30). Hydraulic short rods (32) are movably arranged at both ends of the double-headed hydraulic cylinder (30). The ends of the hydraulic short rods (32) are welded to the sides of the corresponding L-shaped positioning arms (33). An auxiliary support surface (34) for sliding oil supply pipes (15) is provided on the upper end face of the L-shaped positioning arms (33). The auxiliary support surface (34) and the main support surface (27) are connected. All are flush with the bottom of the main wheel (5) of the bending pipe. The auxiliary support surface (34) extends into the interior of the L-shaped positioning arm (33) and is provided with a pressing groove (35). A telescopic plate (36) is movably arranged in the pressing groove (35). The telescopic plate (36) is connected to the bottom of the pressing groove (35) by two sets of return springs (37). The upper end of the telescopic plate (36) is connected to a side positioning block (38) that acts on the oil pipe (15). The upper end of the side positioning block (38) includes two sets of symmetrical extrusion inclined surfaces (39). The integrated base (1) is connected to a vertical partition (50) at the left end. The vertical partition (50) has a positioning groove (51) through which the oil supply pipe (15) passes. Two sets of stamping brackets (52) are symmetrically arranged on the back of the vertical partition (50). The interior of the two sets of stamping brackets (52) forms a stamping track (53) that acts on the stamping seat (60). The stamping seat (60) is provided with two sets of stamping brackets symmetrically distributed in the stamping track (53). The bent part of the oil pipe (15) passes through the positioning groove (51) and enters the middle position of the stamping track (53). Each set of stamping seats (60) is provided with a stamping moving die (61) that acts on the bent part of the oil pipe (15). The interior of the stamping moving die (61) has a curved correction groove (62) that extends outward.

2. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 1, characterized in that: The right end of the integrated base (1) is connected to a pipe bending seat (2). The upper end of the pipe bending seat (2) is centrally located and rotates with an outer wheel bracket (4). The inner part of the outer wheel bracket (4) is provided with a pipe bending main wheel (5) that acts on the oil pipe (15). The side of the outer wheel bracket (4) is connected to a pipe bending arm (6). The inner part of the pipe bending arm (6) is provided with a pipe bending guide wheel (7) that acts on the oil pipe (15). A rotary bearing (8) is installed at the middle position of the upper end face of the outer wheel bracket (4). A positioning roller (9) that is fixed to the pipe bending seat (2) is sleeved inside the rotary bearing (8).

3. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 2, characterized in that: The inner groove (10) is opened outward inside the main wheel (5) of the bending pipe. A push rod motor is fixed horizontally inside the inner groove (10). An electric push rod (11) is movably arranged outward inside the push rod motor. A concave pushing block (12) that acts on the oil pipe (15) is welded to the end of the electric push rod (11). The concave pushing block (12) and the inner groove (10) are in harmony.

4. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 1, characterized in that: The first precision lead screw (21) is fitted with first bearing seats (22) at both ends. The right end of the first precision lead screw (21) extends into the inside of the bent pipe seat (2) and is connected to a lead screw motor (23) via a coupling. The first displacement seat (24) is fitted with a first lead screw nut sleeve (25) through which the first precision lead screw (21) passes. Both sets of L-shaped positioning arms (33) are connected to an outer top seat (40) on the outside. A single-head hydraulic cylinder (41) is horizontally arranged on the outer side of the outer top seat (40). A horizontal hydraulic rod (42) is movably arranged in the interior of the single-head hydraulic cylinder (41). A linear drive block (43) is connected to the end of the horizontal hydraulic rod (42). A linear limiting channel for the linear drive block (43) to move is opened inside the outer top seat (40).

5. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 4, characterized in that: The linear drive block (43) has a downward-facing inclined sliding surface (44) inside. The outer top seat (40) has a downward-moving pressure rod (45) inside. The inner side of the outer top seat (40) has a rod hole (46) for the pressure rod (45) to extend out. The upper end of the pressure rod (45) extends into the linear drive block (43). The upper end of the pressure rod (45) is provided with an arc-shaped sliding head (47) that interacts with the inclined sliding surface (44). The outer top seat (40) is riveted with a spring positioning sleeve (55) for limiting the movement of the pressure rod (45). A compression spring (48) is fixed between the spring positioning sleeve (55) and the rod hole (46) and sleeved on the outside of the pressure rod (45). The lower end face of the pressure rod (45) is welded with an anti-slip curved pressure plate (49) that acts on the upper end face of the oil pipe (15). The bottom of the anti-slip curved pressure plate (49) is distributed with several sets of anti-slip patterns.

6. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 1, characterized in that: The stamping seat (60) has a cylinder rod (63) fixed at one end away from the stamping die (61). The cylinder rod (63) extends outward from the inside of the stamping cylinder (64). There are two sets of stamping cylinders (64), which are riveted together by connecting sleeve (65) and vertical partition (50).

7. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 1, characterized in that: A horizontal top seat (70) is connected to the top right side of the vertical partition (50). A second linear limiting groove (73) is provided through the middle of the horizontal top seat (70). A second lead screw (74) is rotatably installed in the second linear limiting groove (73). A second bearing seat (75) is sleeved on both ends of the second lead screw (74). The right end of the second lead screw (74) extends into the motor seat (76). A second lead screw motor (77) that acts on the second lead screw (74) is provided in the motor seat (76). A second displacement seat (80) is movably installed on the second lead screw (74).

8. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 7, characterized in that: The second displacement seat (80) is equipped with a second lead screw nut sleeve (81) through which the second lead screw (74) passes. The second displacement seat (80) is symmetrically provided with sliding rod holes (82) for the fixed slide rod (78) to pass through on both sides of the second lead screw nut sleeve (81). The bottom of the second displacement seat (80) is provided with a swing groove (83). A swing arm (84) is movably arranged in the swing groove (83). The swing arm (84) is sleeved on the swing arm shaft (85). The swing arm shaft (85) is connected to the inner wall of the second displacement seat (80) through two sets of damping bearings (86). One end of the swing arm shaft (85) is provided with a plug part (87). The plug part (87) extends into the interior of the rotary cylinder (88).

9. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 8, characterized in that: The lower part of the swing arm (84) is provided with a swing arm through groove (90). A cutting drum (91) is rotatably arranged in the swing arm through groove (90). The cutting drum (91) is connected to the inner wall of the swing arm through groove (90) through two sets of outer bearings (92). A large gear (93) is sleeved on the middle of the outer side of the cutting drum (91). A small gear (94) is meshed on the upper end of the large gear (93). The small gear (94) is sleeved on the output shaft of the servo motor (95).

10. The integrated equipment for bending correction and cutting of aircraft fuel lines according to claim 9, characterized in that: The cutting drum (91) has an internal cutting cavity (100) into which the oil supply pipe (15) extends. The internal cutting cavity (100) accommodates the oil pipe (15) to move in an arc. The cavity wall of the cutting cavity (100) has an installation groove (101). The installation groove (101) is fixed with a cutting motor (102). The output shaft of the cutting motor (102) is fitted with a cutting wheel (103) that acts on the oil pipe (15).

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