An aircraft oil line pipe bending and forming assembly

Abstract

The present application relates to oil pipeline mechanical combination processing technical field, disclose a kind of aircraft oil pipeline bending forming combination device, including tooling base and tooling top seat, the tooling base and tooling top seat between using four groups of guide rail rod connection, four groups of guide rail rod between limit movable setting have lifting workbench, the inside of lifting workbench edge position symmetrically is equipped with two groups of screw nut cover for vertical lead screw passing, the right side of tooling base and tooling top seat is connected with combination machine tool.The power of bending forming wheel makes the lower swivel lever accelerate rotation, makes the whole sponge oil applicator rotate, the centrifugal oil disc in centrifugal cavity high-speed rotation, the lubricating oil in disc is thrown out by centrifugal force, evenly dispersed to annular sponge body, annular sponge body is compressed by extrusion force of rotating wheel groove, and annular sponge body is locally compressed and deformed, and the lubricating oil is applied to rotating wheel groove, to increase the surface lubricity, reduce the friction damage to metal pipe forming.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil pipeline mechanical combination processing, in particular to an aircraft oil pipeline bending forming combination device. BACKGROUND

[0002] The aircraft oil pipeline is a key system for conveying aviation fuel, and its safe operation is directly related to flight safety. It is responsible for stably conveying fuel from the fuel tank to the engine combustion chamber, and is the "lifeline" of the aircraft. Its design needs to withstand high pressure (modern engine fuel pressure can reach more than 34.5 MPa), extreme temperature changes and vibration in flight. Any leakage or blockage can cause serious accidents. Therefore, mainly aluminum alloy pipes (lightweight, corrosion-resistant), stainless steel pipes (high strength, corrosion-resistant) and titanium alloy pipes (high temperature-resistant, high strength) are used. In the processing of these metal pipes, cutting according to the length of use is required, and bending in the narrow space of the cabin is also required. Therefore, a combination device for cutting and bending is used.

[0003] The existing aircraft oil pipeline cutting and bending combination device has many technical defects in use. First, the cutting mechanism and the forming mechanism are independently designed and operated, lacking linkage, resulting in the need for tedious transfer of the pipeline in the device, and each mechanism is equipped with a pipe clamp, resulting in a complex overall structure of the equipment. Second, dust particles generated during cutting need to be absorbed in time using a dust suction box, which needs to be cleaned regularly, which is time-consuming and labor-intensive and has low automation. Third, when bending the pipe, the pressure wheel needs to be in full contact with the outer pipe wall to generate frictional force, which can easily cause excessive wear of the outer pipe wall, affecting the appearance and quality.

[0004] In view of the above, the existing facilities cannot meet the working use requirements. Therefore, we propose an aircraft oil pipeline bending forming combination device. SUMMARY

[0005] The main purpose of the present application is to provide an aircraft oil pipeline bending forming combination device, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0007] The application discloses a kind of aircraft oil circuit pipeline bending forming combination device, including tool base and tool top, it is connected between tool base and tool top with four groups of guide rail rod, four groups of guide rail rod are symmetrically provided with lifting workbench with position limiting activity, the inside of lifting workbench is symmetrically provided with two groups of screw nut sleeve for vertical screw rod, the upper and lower ends of vertical screw rod are connected with tool base, tool top using first bearing seat, wherein the lower end of one group of vertical screw rod extends outward through coupling and is connected with screw motor, the upper end of two groups of vertical screw rod is connected with chain wheel with tool top, two groups of chain wheel are connected with transmission using chain, and chain wheel and chain are located in the inside of transmission box.

[0008] As a preferred scheme of the aircraft oil circuit pipeline bending forming combination device, the upper end surface of the lifting workbench is horizontally fixed with an outer guide cylinder at the middle position, an inner guide cylinder is horizontally fixed in the inner middle position of the outer guide cylinder, the left and right ends of the inner guide cylinder are provided with material openings for metal pipes, a conveying wheel assembly acting on the metal pipe is connected to the upper end surface of the lifting workbench and located at the right end of the outer guide cylinder, a plurality of groups of synchronous cam pipe clamps are uniformly distributed at the right position between the outer guide cylinder and the inner guide cylinder, and the number of the synchronous cam pipe clamps is preferably 4 groups.

[0009] As a preferred scheme of the aircraft oil circuit pipeline bending forming combination device, each group of the synchronous cam pipe clamps includes a camshaft, a second bearing seat, a pipe clamping cam and a synchronous sprocket, the two ends of the camshaft are connected with the outer guide cylinder using the second bearing seat, two groups of pipe clamping cams are sleeved on the middle part of the camshaft, the inner guide cylinder is provided with an inner opening for the pipe clamping cams to extend into, a synchronous sprocket is also sleeved on the camshaft, and a plurality of groups of the synchronous sprockets are connected with transmission using an outer chain.

[0010] As a preferred scheme of the aircraft oil circuit pipeline bending forming combination device, the camshaft of one group of the synchronous cam pipe clamps extends outward through a coupling and is connected with a first servo motor, the first servo motor is fixed to the inner side of the outer guide cylinder, a tensioning wheel acting on the outer chain is also installed between adjacent synchronous sprockets, and the number of the tensioning wheels is preferably 4 groups.

[0011] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the right side of the tool base and the tool top is connected with a combined machine tool, a cutting chamber is arranged at the upper position in the combined machine tool, a cutting machine is fixed at the upper position in the cutting chamber, a blade acting on the metal pipe is rotatably arranged on the cutting machine, a dust collecting cover is arranged in the cutting chamber and located at the right side of the cutting machine, a dust collecting pipe is connected to the end of the dust collecting cover and extends upward, a dust collecting box is placed on the upper end surface of the combined machine tool and connected with the dust collecting pipe, and a dust collecting fan acting on the dust collecting pipe is installed in the dust collecting box.

[0012] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the right side of the tool base and the tool top is connected with a combined machine tool, a cutting chamber is arranged at the upper position in the combined machine tool, a cutting machine is fixed at the upper position in the cutting chamber, a blade acting on the metal pipe is rotatably arranged on the cutting machine, a dust collecting cover is arranged in the cutting chamber and located at the right side of the cutting machine, a dust collecting pipe is connected to the end of the dust collecting cover and extends upward, a dust collecting box is placed on the upper end surface of the combined machine tool and connected with the dust collecting pipe, and a dust collecting fan acting on the dust collecting pipe is installed in the dust collecting box.

[0013] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the right side of the tool base and the tool top is connected with a combined machine tool, a cutting chamber is arranged at the upper position in the combined machine tool, a cutting machine is fixed at the upper position in the cutting chamber, a blade acting on the metal pipe is rotatably arranged on the cutting machine, a dust collecting cover is arranged in the cutting chamber and located at the right side of the cutting machine, a dust collecting pipe is connected to the end of the dust collecting cover and extends upward, a dust collecting box is placed on the upper end surface of the combined machine tool and connected with the dust collecting pipe, and a dust collecting fan acting on the dust collecting pipe is installed in the dust collecting box.

[0014] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the right side of the tool base and the tool top is connected with a combined machine tool, a cutting chamber is arranged at the upper position in the combined machine tool, a cutting machine is fixed at the upper position in the cutting chamber, a blade acting on the metal pipe is rotatably arranged on the cutting machine, a dust collecting cover is arranged in the cutting chamber and located at the right side of the cutting machine, a dust collecting pipe is connected to the end of the dust collecting cover and extends upward, a dust collecting box is placed on the upper end surface of the combined machine tool and connected with the dust collecting pipe, and a dust collecting fan acting on the dust collecting pipe is installed in the dust collecting box.

[0015] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the right side of the tool base and the tool top is connected with a combined machine tool, a cutting chamber is arranged at the upper position in the combined machine tool, a cutting machine is fixed at the upper position in the cutting chamber, a blade acting on the metal pipe is rotatably arranged on the cutting machine, a dust collecting cover is arranged in the cutting chamber and located at the right side of the cutting machine, a dust collecting pipe is connected to the end of the dust collecting cover and extends upward, a dust collecting box is placed on the upper end surface of the combined machine tool and connected with the dust collecting pipe, and a dust collecting fan acting on the dust collecting pipe is installed in the dust collecting box.

[0016] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the intermittent rotating rod is uniformly provided with a plurality of groups of atomizing water sprayers, the number of the atomizing water sprayers is preferably 6-12 groups, the atomizing water sprayer comprises an elongated arm, a scooping water box, a water storage cavity and an atomizing hole, the elongated arm is welded on the intermittent rotating rod, the end of the intermittent rotating rod is connected with the scooping water box which extends into the dust-settling water tank, the scooping water box is provided with the water storage cavity, and the box surface of the scooping water box is uniformly provided with a plurality of groups of atomizing holes.

[0017] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the inside of the combined machine tool is provided with a forming chamber at a lower position, a limiting groove for the metal pipe to pass through is arranged between the forming chamber and the cutting chamber, the outside of the combined machine tool is provided with a discharge port which is in communication with the forming chamber, the bending pipe positioning wheel is fixed in the forming chamber by the fixed column, a positioning wheel groove for the metal pipe is arranged on the wheel surface of the bending pipe positioning wheel, the U-shaped bending pipe rack is movably arranged on the outside of the bending pipe positioning wheel, the U-shaped bending pipe rack comprises two groups of connecting ear pieces, the lower connecting ear piece is provided with an inner bearing which is sleeved on the outside of the fixed column, the upper connecting ear piece is fixed by the inner bearing and the upper end surface of the bending pipe positioning wheel, the rotary cylinder is arranged on the top of the forming chamber, and the rotary table of the rotary cylinder is fixed with the upper connecting ear piece.

[0018] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the inside of the combined machine tool is provided with a forming chamber at a lower position, a limiting groove for the metal pipe to pass through is arranged between the forming chamber and the cutting chamber, the outside of the combined machine tool is provided with a discharge port which is in communication with the forming chamber, the bending pipe positioning wheel is fixed in the forming chamber by the fixed column, a positioning wheel groove for the metal pipe is arranged on the wheel surface of the bending pipe positioning wheel, the U-shaped bending pipe rack is movably arranged on the outside of the bending pipe positioning wheel, the U-shaped bending pipe rack comprises two groups of connecting ear pieces, the lower connecting ear piece is provided with an inner bearing which is sleeved on the outside of the fixed column, the upper connecting ear piece is fixed by the inner bearing and the upper end surface of the bending pipe positioning wheel, the rotary cylinder is arranged on the top of the forming chamber, and the rotary table of the rotary cylinder is fixed with the upper connecting ear piece.

[0019] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the inside of the combined machine tool is provided with a forming chamber at a lower position, a limiting groove for the metal pipe to pass through is arranged between the forming chamber and the cutting chamber, the outside of the combined machine tool is provided with a discharge port which is in communication with the forming chamber, the bending pipe positioning wheel is fixed in the forming chamber by the fixed column, a positioning wheel groove for the metal pipe is arranged on the wheel surface of the bending pipe positioning wheel, the U-shaped bending pipe rack is movably arranged on the outside of the bending pipe positioning wheel, the U-shaped bending pipe rack comprises two groups of connecting ear pieces, the lower connecting ear piece is provided with an inner bearing which is sleeved on the outside of the fixed column, the upper connecting ear piece is fixed by the inner bearing and the upper end surface of the bending pipe positioning wheel, the rotary cylinder is arranged on the top of the forming chamber, and the rotary table of the rotary cylinder is fixed with the upper connecting ear piece.

[0020] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the lower end of the sponge oil applicator is fixed with a lower rotating rod, the upper end of the sponge oil applicator is fixed with an upper hollow rod, the lower rotating rod and the upper hollow rod are connected through the fifth bearing seat and the inner wall of the U-shaped pipe bending frame, the lower rotating rod and the upper hollow rod are sleeved with small pulleys, and the two groups of small pulleys are connected through the wheel belt and the large pulley.

[0021] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the upper hollow rod of the upper hollow rod extends out of the U-shaped pipe bending frame and is connected with an oil inlet chute, the upper end surface of the oil inlet chute is provided with an annular sealing gasket, the annular sealing gasket is provided with an oil inlet opening in communication with the inside of the oil inlet chute, the upper end surface of the U-shaped pipe bending frame is fixed with an oil storage box on one side of the oil inlet chute, the oil storage box is externally extended and attached to the annular sealing gasket through the oil injection pipe, and the oil injection pipe is provided with an oil control valve.

[0022] As a preferred scheme of the aircraft oil circuit pipeline bending forming combined device, the upper hollow rod of the upper hollow rod extends out of the U-shaped pipe bending frame and is connected with an oil inlet chute, the upper end surface of the oil inlet chute is provided with an annular sealing gasket, the annular sealing gasket is provided with an oil inlet opening in communication with the inside of the oil inlet chute, the upper end surface of the U-shaped pipe bending frame is fixed with an oil storage box on one side of the oil inlet chute, the oil storage box is externally extended and attached to the annular sealing gasket through the oil injection pipe, and the oil injection pipe is provided with an oil control valve.

[0023] The aircraft oil circuit pipeline bending forming combined device provided by the application has the following significant improvements and advantages compared with the prior art.

[0024] The first servo motor is started to drive one group of synchronous cam pipe clamps to work, and the connection transmission of the outer chain and a plurality of synchronous sprockets is used to make each group of synchronous cam pipe clamps work synchronously, the pipe clamping cam on the cam shaft is inserted into the inner opening by rotating, the protruding part contacts the outer wall of the metal pipe from different directions to achieve the effect of opposite clamping and positioning, and a single driving source drives a plurality of clamping points to improve the effect of ring clamping.

[0025] The synchronous cam pipe clamp is designed to accurately position the pipe during cutting and forming, avoid displacement during cutting and forming, and simplify the existing structure to improve work efficiency.

[0026] With the help of the air flow generated by the dust collection motor, the dust filter bag in the dust removal seat is cleaned by a group of straight blow pipes and several groups of side blow pipes, so that a large amount of dust particles on the dust filter bag fall down, the purpose of automatically cleaning the dust filter bag is achieved, time and labor are saved, and the driving motor is started intermittently. The variable speed rotating rod drives several groups of atomizing water sprayers to do circular motion, the water scooping box scoops clean water from the dust falling water tank first, then randomly sprays during upward movement, and several groups of atomizing holes are dispersed outward to form a similar atomizing effect under the dust filter bag, so that a large amount of dust particles are adsorbed in time to avoid dust raising, and the dust particle absorption effect is significantly improved. The environmental temperature in the dust removal seat is also reduced, and the burning of the dust filter bag by high-temperature dust particles is reduced.

[0027] The rotating cylinder is started, the rotating table drives the whole U-shaped bent pipe frame to do circular motion, rotates by a certain angle, and the extrusion force generated by the position change of the bent pipe positioning wheel causes the metal pipe to bend, and the local pipe is completely attached in the positioning wheel groove, so that the automatic bending forming is achieved, and time and labor are saved.

[0028] The power of the bent pipe forming wheel makes the lower rotating rod rotate faster, and the whole sponge oil applicator rotates. On the one hand, the centrifugal oil disc in the centrifugal cavity rotates at high speed, and the lubricating oil in the disc is thrown out by centrifugal force and uniformly dispersed on the annular sponge body, so that the annular sponge body is immersed in part of the lubricating oil. The annular sponge body is compressed and deformed locally by the extrusion force of the rotating wheel groove, the lubricating oil is applied to the rotating wheel groove, the surface lubricity is increased, and the friction damage to the metal pipe forming is reduced. On the other hand, the lubricating oil in the oil collecting groove moves upward due to centrifugal force, collides with the several groups of arc-shaped splash baffles, and is splashed upward again, and is absorbed by the annular sponge body, so that the dispersion effect is improved and the whole sponge body is fully covered. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a whole structure schematic diagram of one direction of the aircraft oil line pipe bending forming combined device of the application;

[0030] Figure 2 It is a whole structure schematic diagram of another direction of the aircraft oil line pipe bending forming combined device of the application;

[0031] Figure 3 It is a transmission structure schematic diagram of the lifting workbench of the application;

[0032] Figure 4 It is an internal structure schematic diagram of the outer guide cylinder of the application;

[0033] Figure 5 It is an installation position schematic diagram of the synchronous cam pipe clamp of the application;

[0034] Figure 6The specific structure diagram of the synchronous cam pipe clamp of the present application;

[0035] Figure 7 The specific structure diagram of the external structure of the combined machine tool of the present application;

[0036] Figure 8 The connection diagram of the dust removal seat and the suction box of the present application;

[0037] Figure 9 The internal structure diagram of the dust removal seat of the present application;

[0038] Figure 10 The blowing pipe line diagram of the dust filter bag of the present application;

[0039] Figure 11 The specific structure diagram of the switching disc of the present application;

[0040] Figure 12 The specific structure diagram of the dust falling pool of the present application;

[0041] Figure 13 The specific structure diagram of the atomizing water sprayer of the present application;

[0042] Figure 14 The internal structure diagram of the forming chamber of the present application;

[0043] Figure 15 The specific connection diagram of the U-shaped bent pipe rack of the present application;

[0044] Figure 16 The internal structure diagram of the inner chamber of the present application;

[0045] Figure 17 The external structure diagram of the sponge oil applicator of the present application;

[0046] Figure 18 The cross-sectional view of the sponge oil applicator of the present application.

[0047] In the figure: 1, tool base; 2, tool top base; 3, guide rail; 4, combined machine tool; 5, discharge port; 6, metal pipe; 10, lifting workbench; 11, screw nut sleeve; 12, vertical screw rod; 13, first bearing seat; 14, screw motor; 15, chain wheel; 16, chain; 17, transmission box; 20, outer guide cylinder; 21, inner guide cylinder; 22, material port; 23, conveying wheel assembly; 24, inner opening; 25, outer chain; 26, first servo motor; 27, tension wheel; 30, synchronous cam pipe clamp; 31, cam shaft; 32, second bearing seat; 33, pipe clamping cam; 34, synchronous chain wheel; 40, cutting chamber; 41, cutting machine; 42, blade; 43, material collecting cover; 44, dust suction pipe; 45, material suction box; 46, dust suction fan; 50, dust removal seat; 51, switching disc; 52, rotating column; 53, supporting bearing; 54, large gear; 55, small gear; 56, second servo motor; 57, filter screen frame; 58, dust filtering cloth bag; 60, flow guide pipe; 61, booster pump; 62, perforated joint; 63, straight blowing pipe; 64, side blowing pipe; 70, dust falling pool; 71, baffle; 72, dust falling water tank; 73, intermittent rotating rod; 74, driving motor; 80, atomizing sprinkler; 81, elongated arm; 82, water scooping box; 83, water storage cavity; 84, atomizing hole;

[0048] 90, forming chamber; 91, fixing column; 92, elbow pipe positioning wheel; 93, positioning wheel groove; 94, U-shaped elbow pipe rack; 95, connecting ear; 96, inner bearing; 97, rotating air cylinder; 98, rotating table; 99, limiting groove; 100, inner chamber; 101, elbow pipe forming wheel; 102, rotating wheel groove; 103, wheel shaft; 104, fourth bearing seat; 105, large belt wheel; 110, sponge oiling device; 111, lower rotating rod; 112, upper hollow rod; 113, fifth bearing seat; 114, small belt wheel; 115, belt; 120, oil inlet hopper; 121, annular sealing gasket; 122, oil inlet; 123, oil storage box; 124, oil injection pipe; 130, annular sponge body; 131, connecting cover; 132, centrifugal cavity; 133, oil collecting bottom tank; 140, oil inlet pipe; 141, connecting block; 142, centrifugal oil pan; 143, arc-shaped sputtering baffle. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0050] As Figures 1-18As shown, the embodiment provides a kind of aircraft oil circuit pipeline bending forming combined device, including tool base 1 and tool top 2, tool base 1 and tool top 2 between using four groups of guide rail rod 3 connection, four groups of guide rail rod 3 between limit activity setting has lifting workbench 10, the inner side of guide rail rod 3 is provided with and the track groove of lifting workbench 10 is in accord with, the inside of lifting workbench 10 is symmetrically provided with two groups of screw nut sleeve 11 for vertical screw rod 12 to pass through, the upper and lower ends of vertical screw rod 12 are connected using first bearing seat 13 and tool base 1, tool top 2, the lower end of one group of vertical screw rod 12 extends outward and is connected with screw rod motor 14 by coupling.

[0051] Wherein, the upper end of two groups of vertical screw rod 12 extends out tool top 2 and is sleeved with sprocket 15, two groups of sprocket 15 are connected transmission using chain 16, sprocket 15 and chain 16 are all located in the inside of transmission box 17, transmission box 17 is fixed on the upper end surface of tool top 2, as Figure 1 And Figure 3 As shown.

[0052] Further, the upper end surface of lifting workbench 10 is horizontally fixed with outer guide cylinder 20 at middle position, outer guide cylinder 20 is horizontally fixed with inner guide cylinder 21 at inside middle position, multiple groups of connecting ribs are arranged equidistantly between the two, the left and right ends of inner guide cylinder 21 are all provided with material port 22 for metal pipe 6 to enter and exit, the upper end surface of lifting workbench 10 is connected with conveying wheel assembly 23 acting on metal pipe 6 at the right end of outer guide cylinder 20, conveying wheel assembly 23 includes two groups of conveying wheels that move oppositely, as Figures 3-5 As shown.

[0053] Wherein, the right position between outer guide cylinder 20 and inner guide cylinder 21 is uniformly distributed with several groups of synchronous cam pipe clamp 30, as Figure 4 And Figure 5 As shown.

[0054] Specifically, each group of synchronous cam pipe clamp 30 includes camshaft 31, second bearing seat 32, pipe clamping cam 33 and synchronous sprocket 34, as Figure 6 As shown.

[0055] In the embodiment, the two ends of camshaft 31 are connected using second bearing seat 32 and outer guide cylinder 20, camshaft 31 is sleeved with two groups of pipe clamping cam 33 in the middle, inner guide cylinder 21 is provided with inner opening 24 for pipe clamping cam 33 to extend into on the upper, camshaft 31 is also sleeved with synchronous sprocket 34, several groups of synchronous sprocket 34 are connected transmission using outer chain 25.

[0056] Further, the cam shaft 31 of the one set of synchronous cam clamp pipe device 30 extends outward through the shaft coupling and is connected with the first servo motor 26, the first servo motor 26 is fixed to the inner side of the outer guide cylinder 20, and the tensioning wheel 27 acting on the outer chain 25 is also installed between the adjacent synchronous sprocket wheels 34 to position and tension the outer chain 25, as shown in Figure 4 and Figure 5 .

[0057] Further, the right side of the tool base 1 and the tool top 2 is connected with the combined machine tool 4, the inside of the combined machine tool 4 is provided with a cutting chamber 40 at the upper position, the cutting chamber 40 is fixed with a cutting machine 41 at the upper position, the cutting machine 41 is provided with a blade 42 acting on the metal pipe 6, the width of the blade 42 extending out of the cutting machine 41 is greater than the diameter of the metal pipe 6, as shown in Figure 1 , Figure 2 and Figure 7 .

[0058] Wherein, the cutting chamber 40 is provided with a material collecting cover 43 at the right side of the cutting machine 41, the end of the material collecting cover 43 is connected with a dust suction pipe 44 and extends upward, the upper end surface of the combined machine tool 4 is placed with a suction box 45 connected with the dust suction pipe 44, the suction box 45 is provided with a dust suction fan 46 acting on the dust suction pipe 44, as shown in Figure 7 and Figure 8 .

[0059] Further, the upper end surface of the combined machine tool 4 is provided with a dust removal seat 50 communicating with the inside of the suction box 45, the inside of the dust removal seat 50 is rotatably provided with a switching disc 51 at the middle position, as shown in Figures 9-11 .

[0060] Specifically, the lower end of the switching disc 51 is connected with a support bearing 53 at the middle position by a rotating column 52, the rotating column 52 is sleeved with a large gear 54, the large gear 54 is meshingly provided with a small gear 55 on one side, the small gear 55 is sleeved on the output shaft of the second servo motor 56, as shown in Figure 11 .

[0061] Wherein, the switching disc 51 is symmetrically provided with two sets of filter screen frames 57, each set of filter screen frame 57 is provided with a dust filter bag 58, the dust filter bag 58 moves to the inside of the suction box 45 to intercept and filter the dust particles discharged by the dust suction pipe 44, as shown in Figure 10 and Figure 11 .

[0062] In this embodiment, the top of the dust removal seat 50 is provided with a booster pump 61, the booster pump 61 and the air exchange cavity of the dust suction fan 46 are connected by a flow guide pipe 60, the lower end of the booster pump 61 is provided with a multi-hole connector 62, the multi-hole connector 62 is provided with a set of straight blow pipes 63 acting on the end of the dust filter bag 58 and a plurality of sets of side blow pipes 64 acting on the side of the dust filter bag 58, as shown inFigure 8 and Figure 10 as shown.

[0063] Further, the bottom of the dust removal seat 50 is fixed with a dust removal pool 70 directly below the dust filter bag 58, the side of the dust removal pool 70 is connected with a baffle 71, the baffle 71 separates the dust removal seat 50 and part of the suction box 45, the support bearing 53 is fixed on the baffle 71, the inside of the dust removal pool 70 is provided with a dust removal water groove 72 at the lower position, and the inside of the dust removal pool 70 is rotatably provided with an intermittent rotating rod 73 at the upper position, one end of the intermittent rotating rod 73 is connected with a driving motor 74 through a shaft coupling, and the driving motor 74 is installed outside the dust removal pool 70, as shown in Figure 12 .

[0064] Among them, the inside of the dust removal seat 50 is provided with a plurality of groups of pressure relief holes.

[0065] Among them, the intermittent rotating rod 73 is uniformly distributed with a plurality of groups of atomizing sprinklers 80, as shown in Figure 12 .

[0066] Specifically, the atomizing sprinkler 80 includes an elongated arm 81, a scooping water box 82, a water storage cavity 83 and an atomizing hole 84, as shown in Figure 13 .

[0067] In this embodiment, the elongated arm 81 is welded on the intermittent rotating rod 73, the end of the intermittent rotating rod 73 is connected with the scooping water box 82 which extends into the dust removal water groove 72, the scooping water box 82 is provided with the water storage cavity 83 inside, and the box surface of the scooping water box 82 is uniformly distributed with a plurality of groups of atomizing holes 84 with small hole diameters.

[0068] Further, the inside of the combined machine tool 4 is provided with a forming chamber 90 at the lower position, the forming chamber 90 and the cutting chamber 40 are provided with a limiting groove 99 for the metal pipe 6 to pass through, and the outside of the combined machine tool 4 is provided with a discharge port 5 which is in communication with the forming chamber 90, as shown in Figure 7 .

[0069] Specifically, the inside of the forming chamber 90 is fixed with a bent pipe positioning wheel 92 by a fixed column 91, the wheel surface of the bent pipe positioning wheel 92 is provided with a positioning wheel groove 93 which acts on the metal pipe 6, and the outside of the bent pipe positioning wheel 92 is movably provided with a U-shaped bent pipe rack 94, the U-shaped bent pipe rack 94 includes two groups of connecting ear pieces 95, as shown in Figure 7 , Figure 14 and Figure 15 .

[0070] Among them, the lower connecting ear piece 95 is provided with an inner bearing 96 which is sleeved outside the fixed column 91, as shown in Figure 15 .

[0071] Among them, the lower end of the upper connecting ear piece 95 is fixed by the inner bearing 96 and the upper end surface of the bent pipe positioning wheel 92.

[0072] Further, the top of the forming chamber 90 is provided with a rotary cylinder 97, the rotation angle of which can be adjusted according to actual needs, so as to change the bending degree of the pipe. The rotary table 98 of the rotary cylinder 97 is fixed to the upper connecting lug 95, as shown in Figure 14 and Figure 15 .

[0073] Further, the inner side of the U-shaped pipe bending frame 94 forms an inner chamber 100, in which 1-2 sets of pipe bending forming wheels 101 are installed. Normally, a single set of pipe bending forming wheels 101 is used, and two sets of pipe bending forming wheels 101 can be used when the bending accuracy is not considered (the center points of the two sets of pipe bending forming wheels 101 are close to each other to avoid that the metal pipe 6 cannot be normally inserted straight into them). The wheel surface of the pipe bending forming wheel 101 is provided with a rotating wheel groove 102 for the metal pipe 6.

[0074] The upper and lower ends of the pipe bending forming wheel 101 are both welded with an axle 103, which is connected to the inner wall of the U-shaped pipe bending frame 94 through a fourth bearing seat 104. The upper axle 103 or the lower axle 103 of the pipe bending forming wheel 101 is sleeved with a large pulley 105.

[0075] The inner chamber 100 is provided with a sponge oil applicator 110 on the side away from the pipe positioning wheel 92, as shown in Figure 15 and Figure 17 .

[0076] Specifically, the sponge oil applicator 110 includes a ring-shaped sponge body 130, a connecting cover 131, a centrifugal cavity 132, and an oil collecting trough 133, as shown in Figure 17 and Figure 18 .

[0077] In this embodiment, the ring-shaped sponge body 130 has a certain thickness. The local parts of the ring-shaped sponge body 130 respectively extend into the rotating wheel grooves 102 of the pipe bending forming wheels 101 (the interference fit between the ring-shaped sponge body 130 and the rotating wheel grooves 102 and the outward protrusion of the ring-shaped sponge body 130 due to centrifugal motion both help the ring-shaped sponge body 130 to achieve extrusion compression). The upper and lower ends of the ring-shaped sponge body 130 are sealed by the connecting cover 131. The inner part of the ring-shaped sponge body 130 is provided with the centrifugal cavity 132, and the bottom of the centrifugal cavity 132 is provided with the oil collecting trough 133.

[0078] Further, the lower end of the sponge oil applicator 110 is fixed with a lower rotating rod 111, and the upper end of the sponge oil applicator 110 is fixed with an upper hollow rod 112, both of which are connected through the fifth bearing seat 113 and the inner wall of the U-shaped bent pipe frame 94. A small pulley 114 is sleeved on the lower rotating rod 111 or the upper hollow rod 112, and the small pulley 114 is connected and driven by the large pulley 105 through the wheel belt 115, as shown in Figure 17

[0079] The upper hollow rod 112 extends out of the U-shaped bent pipe frame 94 and is connected with an oil inlet hopper 120. An annular sealing gasket 121 is arranged on the upper end surface of the oil inlet hopper 120. An oil inlet 122 is formed in the annular sealing gasket 121 and is in communication with the inside of the oil inlet hopper 120. An oil storage box 123 is fixed on the upper end surface of the U-shaped bent pipe frame 94 and is located on one side of the oil inlet hopper 120. The oil storage box 123 extends outward and is attached to the annular sealing gasket 121 through an oil injection pipe 124. The annular sealing gasket 121 plays a sealing role for the pipe opening. A control valve 14 is installed in the oil injection pipe 124, as shown in Figure 17

[0080] The upper hollow rod 112 is located at the lower end of the centrifugal cavity 132 and is provided with an oil inlet pipe opening 140. The oil inlet pipe opening 140 is connected and fixed by a plurality of groups of connecting blocks 141 and a centrifugal oil disc 142. A plurality of groups of arc-shaped splash baffles 143 are uniformly installed on the disc bottom of the centrifugal oil disc 142. The outer side surface of the arc-shaped splash baffles 143 is arc-shaped and protruding, which facilitates the upward splashing of oil, as shown in Figure 18

[0081] In use, the metal pipe 6 to be processed is inserted into the inner guide cylinder 21 until the right end enters the inside of the conveying wheel assembly 23, and the conveying wheel assembly 23 is operated. A pair of conveying wheels drives the metal pipe 6 to move linearly to the right, enters the limiting groove 99 of the combined machine tool 4, and aligns the cutting position with the upper blade 42. At this time, the first servo motor 26 is started to drive one group of synchronous cam pipe clamps 30 to work, and the outer chain 25 and a plurality of groups of synchronous sprockets 34 are connected and driven to make each group of synchronous cam pipe clamps 30 work synchronously. The pipe clamping cam 33 on the camshaft 31 extends into the inner opening 24 by rotating, contacts the outer wall of the metal pipe 6 from different directions by the protruding part, and achieves the effect of opposite clamping and positioning.

[0082] Then the lead screw motor 14 is started to drive one group of vertical lead screws 12 to rotate, and the chain wheel 15 and the two groups of chains 16 are connected and driven to make the two groups of vertical lead screws 12 work synchronously, drive the lifting workbench 10 to move vertically upward along the guide rail 3, thereby driving the metal pipe 6 to move upward. The right end of the metal pipe 6 passes through the limiting groove 99 and enters the cutting chamber 40, and contacts the blade 42 rotating at high speed to cut the pipe and meet the length requirement.​​​

[0083] When cutting, the dust suction fan 46 is started, the dust generated in cutting is collected by the collection cover 43, transported to the inside of the suction box 45 through the suction pipe 44, intercepted and filtered by the dust cloth bag 58, the remaining clean air is collected into the flow guide pipe 60, the pressure pump 61 is used to increase the pressure and speed, a group of straight blowing pipes 63 and several groups of side blowing pipes 64 are used to blow and clean the dust on the dust cloth bag 58 in the dust removal seat 50, so that a large amount of dust on the dust cloth bag 58 falls, at the same time, the driving motor 74 is started, the intermittent rotating rod 73 is rotated at variable speed, drives several groups of atomizing water sprayers 80 to do circular motion, the water scooping box 82 scoops clean water from the dust falling water tank 72 first, then randomly sprays during upward movement, disperses outward from the atomizing holes 84, forms a similar atomizing effect below the dust cloth bag 58, timely absorbs a large amount of dust, avoids forming dust raising, the dust-containing water drops finally fall into the water tank, and can also reduce the environmental temperature in the dust removal seat 50.

[0084] Then the second servo motor 56 is started, the pinion 55 rotates, the gear wheel 54 rotates at a reduced speed through meshing, the rotating column 52 drives the switching disc 51 to rotate 180°, so that the dust cloth bag 58 accumulated with dust in the suction box 45 and the dust cloth bag 58 in the dust removal seat 50 which restores the filtering capacity are exchanged in position, timely replacement is facilitated, and the dust suction effect is improved.

[0085] After cutting, the lifting workbench 10 moves vertically downward along the guide rail 3, the metal pipe 6 moves downward, the right end of the metal pipe 6 passes through the limiting groove 99 and enters the forming chamber 90, the conveying wheel assembly 23 works, a pair of conveying wheels drive the metal pipe 6 to move linearly to the right, so that the metal pipe 6 passes through the gap between the positioning wheel groove 93 and the rotating wheel groove 102 (for example, the single group of pipe bending forming wheel 101 is perpendicular to the metal pipe 6 in the initial state), stops moving until the position to be bent is located in the gap, then the several groups of pipe clamping cams 33 fix the metal pipe 6, the rotating cylinder 97 is started, the rotating table 98 drives the entire U-shaped pipe bending frame 94 to do circular motion, rotates by a certain angle, the metal pipe 6 is bent by the extrusion force generated by the pipe bending forming wheel 101 due to position change (and the pipe bending forming wheel 101 is forced to rotate by the force), and is completely fitted in the positioning wheel groove 93, finally the formed metal pipe 6 is taken out from the discharge port 5.

[0086] When the bending forming wheel 101 rotates, the large pulley 105 drives the small pulley 114 to rotate by means of the pulley belt 115, so that the lower rotating rod 111 accelerates to rotate, and the whole sponge oil applicator 110 rotates, and the centrifugal oil disc 142 in the centrifugal cavity 132 rotates at high speed, and the lubricating oil in the disc is thrown out by centrifugal force, and is uniformly dispersed on the annular sponge body 130, so that the annular sponge body 130 is immersed in part of the lubricating oil, and the annular sponge body 130 does circular motion, and through the extrusion force of the rotating wheel groove 102, the annular sponge body 130 is locally compressed and deformed, and the lubricating oil is applied to the rotating wheel groove 102, so that the surface lubricity is increased, and the frictional damage to the metal pipe 6 is reduced. Part of the lubricating oil in the centrifugal cavity 132 flows down and accumulates in the oil collecting groove 133. When the centrifugal motion is performed, the lubricating oil in the oil collecting groove 133 moves upward due to the centrifugal force, collides with the plurality of groups of arc-shaped splash baffles 143, and is splashed upward again and is absorbed by the annular sponge body 130.

[0087] When the sponge oil applicator 110 rotates, the oil inlet 120 is driven to rotate, and the oil injection pipe 124 and the annular sealing gasket 121 move relatively. When the oil injection pipe 124 passes through the oil inlet 122, part of the lubricating oil in the oil injection pipe 124 is injected into the oil inlet 120 from the oil inlet 122. When the sponge oil applicator 110 is stationary, the lubricating oil in the oil inlet 120 flows downward through the upper hollow rod 112 and is injected into the centrifugal oil disc 142 from the oil injection pipe 140 as a supplement, so as to circulate.

[0088] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0089] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An aircraft oil line pipe bending and forming assembly comprising a tool base (1) and a tool head (2), characterized in that: The four groups of guide rail rods (3) are connected between the tool base (1) and the tool top base (2), and the lifting workbench (10) is movably arranged between the four groups of guide rail rods (3); The combined machine tool (4) is connected to the right side of the tool base (1) and the tool top base (2), a cutting chamber (40) is formed in the upper position of the combined machine tool (4), a cutting machine (41) is fixed in the upper position of the cutting chamber (40), and a blade (42) acting on the metal pipe (6) is rotatably arranged on the cutting machine (41); A forming chamber (90) is formed in the lower position of the combined machine tool (4), a limiting groove (99) for the metal pipe (6) is formed between the forming chamber (90) and the cutting chamber (40), a pipe positioning wheel (92) is fixed in the forming chamber (90) by a fixed column (91), a plurality of positioning wheel grooves (93) acting on the metal pipe (6) are formed around the wheel surface of the pipe positioning wheel (92), a U-shaped pipe bracket (94) is movably arranged outside the pipe positioning wheel (92), the U-shaped pipe bracket (94) comprises two groups of connecting lugs (95), an inner bearing (96) is arranged on the lower connecting lug (95) and sleeved outside the fixed column (91), the lower end of the upper connecting lug (95) is fixed by the inner bearing (96) and the upper end surface of the pipe positioning wheel (92), and a rotary air cylinder (97) is arranged on the top of the forming chamber (90); The inner side of the U-shaped pipe bracket (94) forms an inner chamber (100), 1-2 groups of pipe forming wheels (101) are installed in the inner chamber (100), and a plurality of rotating wheel grooves (102) acting on the metal pipe (6) are formed on the wheel surface of the pipe forming wheel (101); A material collecting cover (43) is arranged in the cutting chamber (40) and located to the right of the cutting machine (41), a dust suction pipe (44) is connected to the end of the material collecting cover (43) and extends upward, a material suction box (45) is arranged on the upper end surface of the combined machine tool (4) and connected to the dust suction pipe (44), and a dust suction fan (46) acting on the dust suction pipe (44) is installed in the material suction box (45); A dust removal seat (50) is arranged on the upper end surface of the combined machine tool (4) and connected to the inside of the material suction box (45), a switching disc (51) is rotatably arranged at the middle position of the inside of the dust removal seat (50), a support bearing (53) is connected to the lower end of the switching disc (51) by a rotating column (52), a large gear (54) is sleeved on the rotating column (52), a small gear (55) is arranged on one side of the large gear (54) and engaged with the large gear (54), and the small gear (55) is sleeved on the output shaft of the second servo motor (56). Symmetrically arranged on the switching disc (51) are two groups of filter screen frames (57), and each group of the filter screen frames (57) is provided with a dust filtering bag (58); the dust filtering bag (58) moves to the inside of the suction box (45) to intercept and filter the dust particles discharged from the dust suction pipe (44); The top of the dust removal seat (50) is provided with a booster pump (61), the booster pump (61) and the air exchange cavity of the dust suction fan (46) are connected by a flow guide pipe (60), the lower end of the booster pump (61) is provided with a porous joint (62), and the porous joint (62) is provided with a group of straight blow pipes (63) acting on the end of the dust filtering bag (58) and a plurality of groups of side blow pipes (64) acting on the side of the dust filtering bag (58). The upper and lower ends of the elbow pipe forming wheel (101) are welded with wheel shafts (103), the wheel shafts (103) are connected through the inner wall of the fourth bearing seat (104) and the U-shaped elbow pipe frame (94), and the upper wheel shaft (103) or the lower wheel shaft (103) of the elbow pipe forming wheel (101) is sleeved with a large pulley (105). The inside of the inner chamber (100) and one side of the elbow pipe forming wheel (101) are rotationally provided with a sponge oil applicator (110), the sponge oil applicator (110) comprises an annular sponge body (130), a connecting cover (131), a centrifugal cavity (132) and an oil collecting tank (133), the annular sponge body (130) is locally inserted into the rotating wheel groove (102) of the elbow pipe forming wheel (101), the upper and lower ends of the annular sponge body (130) are sealed by the connecting cover (131), the inside of the annular sponge body (130) is provided with the centrifugal cavity (132), and the bottom of the centrifugal cavity (132) is provided with the oil collecting tank (133). The lower end of the sponge oil applicator (110) is fixed with a lower rotating rod (111), the upper end of the sponge oil applicator (110) is fixed with an upper hollow rod (112), the lower rotating rod (111) and the upper hollow rod (112) are connected through the inner wall of the fifth bearing seat (113) and the U-shaped elbow pipe frame (94), and the lower rotating rod (111) or the upper hollow rod (112) is sleeved with a small pulley (114), and the small pulley (114) is connected and driven by the large pulley (105) through a belt (115).

2. An aircraft fluid line tube bending and forming assembly according to claim 1, wherein: The upper and lower ends of the vertical lead screw (12) are connected by the first bearing seat (13), the tool base (1) and the tool top (2), the lower end of one group of the vertical lead screw (12) extends outward and is connected with a lead screw motor (14) through a shaft coupling, the upper ends of the two groups of the vertical lead screw (12) extend out of the tool top (2) and are sleeved with a chain wheel (15), and the two groups of the chain wheel (15) are connected and driven by a chain (16).

3. An aircraft fluid line tube bending and forming assembly according to claim 1, wherein: The upper end surface of the lifting workbench (10) is horizontally fixed with an outer guide cylinder (20), the inner middle position of the outer guide cylinder (20) is horizontally fixed with an inner guide cylinder (21), the left and right ends of the inner guide cylinder (21) are both provided with a material opening (22) for the metal pipe (6) to go in and out, the upper end surface of the lifting workbench (10) and located at the right end of the outer guide cylinder (20) is connected with a conveying wheel assembly (23) acting on the metal pipe (6), and the right position between the outer guide cylinder (20) and the inner guide cylinder (21) is uniformly distributed with a plurality of groups of synchronous cam pipe clamps (30).

4. An aircraft fluid line tube bending and forming assembly as defined in claim 3 wherein: Each group of the synchronous cam pipe clamps (30) comprises a camshaft (31), a second bearing seat (32), a pipe clamping cam (33) and a synchronous sprocket (34), both ends of the camshaft (31) are connected with the second bearing seat (32) and the outer guide cylinder (20), the middle part of the camshaft (31) is sleeved with two groups of pipe clamping cams (33), the upper end of the inner guide cylinder (21) is provided with an inner opening (24) for the pipe clamping cam (33) to extend into, and the camshaft (31) is further sleeved with a synchronous sprocket (34), and a plurality of groups of the synchronous sprockets (34) are connected and driven by an outer chain (25); The camshaft (31) of one group of the synchronous cam pipe clamps (30) extends outward and is connected with a first servo motor (26) through a shaft coupling, and a tensioning wheel (27) acting on the outer chain (25) is further installed between adjacent synchronous sprockets (34).

5. An aircraft fluid line tube bending and forming assembly as defined in claim 1 wherein: The bottom of the dust removal seat (50) and located directly below the dust filter bag (58) is fixed with a dust falling pool (70), the side of the dust falling pool (70) is connected with a baffle (71), the inside of the dust falling pool (70) is provided with a dust falling water groove (72) at the lower position, and the inside of the dust falling pool (70) is rotatably provided with an intermittent rotating rod (73) at the upper position, one end of the intermittent rotating rod (73) is connected with a driving motor (74) through a shaft coupling; A plurality of groups of atomizing sprinklers (80) are uniformly distributed on the intermittent rotating rod (73), the atomizing sprinkler (80) comprises an elongated arm (81), a scooping water box (82), a water storage cavity (83) and an atomizing hole (84), the elongated arm (81) is welded on the intermittent rotating rod (73), the end of the intermittent rotating rod (73) is connected with the scooping water box (82) which extends into the dust falling water groove (72), the scooping water box (82) is provided with the water storage cavity (83) inside, and the box surface of the scooping water box (82) is uniformly distributed with a plurality of groups of atomizing holes (84).

6. An aircraft fluid line tube bending and forming assembly as defined in claim 1 wherein: The upper hollow rod (112) extends out of the U-shaped bent pipe frame (94) and is connected with an oil inlet hopper (120), the upper end surface of the oil inlet hopper (120) is provided with an annular sealing gasket (121), an oil inlet (122) is formed in the annular sealing gasket (121) and is connected with the inside of the oil inlet hopper (120), the upper end surface of the U-shaped bent pipe frame (94) is fixed with an oil storage box (123) on one side of the oil inlet hopper (120), the oil storage box (123) is externally extended and attached to the annular sealing gasket (121) by means of an oil injection pipe (124), and a control valve is installed in the oil injection pipe (124); The upper hollow rod (112) is provided with an oil inlet pipe (140) at the lower end of the centrifugal cavity (132), the oil inlet pipe (140) is connected and fixed by a plurality of groups of connecting blocks (141) and a centrifugal oil disc (142), and a plurality of groups of arc-shaped splash baffle plates (143) are uniformly installed at the bottom of the centrifugal oil disc (142).

Images