A positioning welding tool for manufacturing aviation casing parts

Abstract

The present application relates to the technical field of welding equipment, and discloses a positioning welding tool for manufacturing aviation casing parts, including a chassis, an adjusting mechanism is arranged inside the chassis, and the adjusting mechanism is used to adjust the position of the welding tool clamping component, a gas connecting mechanism is arranged on the top of the chassis, and the gas connecting mechanism is used to generate power gas, and a plurality of clamping mechanisms are arranged outside the adjusting mechanism, and the clamping mechanisms are used to clamp the aviation casing parts, and a mechanical arm is fixedly connected to one side of the chassis, and the mechanical arm is used to adjust the welding position, and an automatic welding gun is detachably connected to the top of the mechanical arm. Through the composition of the gas connecting mechanism and the clamping mechanism, it is realized that the gas connecting mechanism can be used to drive the clamping mechanism to automatically clamp the parts, thereby reducing the participation of human labor and improving the degree of automation of the tooling, thereby saving time and labor, improving the efficiency of clamping, and further improving the welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a positioning welding tool for manufacturing aviation casing parts. Background Art

[0002] Aircraft casing parts are key components of aircraft engines. They not only play the important roles of containment, load bearing and connection, but also directly affect the performance and reliability of aircraft engines. The manufacturing technology of casing parts is also a difficult point in the manufacturing of aviation parts. Researchers have explored a variety of deformation control methods to ensure the dimensional accuracy and shape quality of casing parts during the processing. In addition, simulation research on residual stress on the cutting surface is also used to predict and optimize the processing process of casing parts to improve the processing quality.

[0003] The manufacturing of aircraft casing parts in the prior art requires the use of welding tools to weld the parts, but the clamping of the welding tool currently requires manual selection of appropriate clamping tools. After the selection, the workpiece is basically clamped and fixed on the welding tool manually, which is time-consuming and labor-intensive, and reduces the welding efficiency of the welding tool. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a positioning welding tool for manufacturing aviation casing parts, which solves the problem that the welding tool in the prior art requires manual participation, is time-consuming and labor-intensive, and reduces the welding efficiency of the welding tool.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a positioning welding tool for manufacturing aviation casing parts, including a chassis, an adjusting mechanism is arranged inside the chassis, the adjusting mechanism is used to adjust the position of the welding tool clamping component, a gas connecting mechanism is arranged on the top of the chassis, the gas connecting mechanism is used to generate power gas, a plurality of clamping mechanisms are arranged outside the adjusting mechanism, the clamping mechanisms are used to clamp aviation casing parts, a mechanical arm is fixedly connected to one side of the chassis, the mechanical arm is used to adjust the welding position, an automatic welding gun is detachably connected to the top of the mechanical arm, the automatic welding gun is used for automatic welding of parts, a welding cleaning mechanism is arranged on the top of the mechanical arm, and casing parts are arranged between the plurality of clamping mechanisms.

[0006] Preferably, the adjusting mechanism comprises a sliding groove, which is opened inside the chassis, the outside of the chassis is fixedly connected to a motor, the output end of the motor is fixedly connected to a bidirectional threaded rod, the external threads of the bidirectional threaded rod are connected to two sliding blocks, one of the sliding blocks is fixedly connected to the outside of the motor, the output end of the motor is fixedly connected to a gear, the top of the sliding block is fixedly connected to an outer sleeve, the inner side of the outer sleeve is rotatably connected to an inner sleeve, the outer side of one of the inner sleeves is fixedly connected to a gear ring, the inner side of the inner sleeve is fixedly connected to a support frame, the middle part of the support frame is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a mounting plate, the external four corners of the mounting plate are rotatably connected to push-pull rods, the external bottom end of the outer sleeve is opened with a fitting groove, and the gear is meshingly connected to the gear ring through the fitting groove.

[0007] Preferably, the gas connecting mechanism includes an air pump, the bottom of which is fixedly connected to a top corner of the chassis, the top of the chassis is fixedly connected to a pressure-stabilizing tank, a connecting air pipe is fixedly connected between the output end of the air pump and the outside of the pressure-stabilizing tank, the top of the pressure-stabilizing tank is fixedly connected to an air outlet pipe, the outer bottom end of the pressure-stabilizing tank is fixedly connected to a support pipe, and one end of the air outlet pipe and the support pipe are both fixedly connected to an electric valve.

[0008] Preferably, the clamping mechanism includes a plurality of mounting rods, the outer portion of the mounting rod is fixedly connected to the inner side of the inner sleeve, the side of the mounting rod away from the inner sleeve is rotatably connected to a rotating rod, the inner side of the rotating rod is rotatably connected to an end of the push-pull rod away from the mounting plate, the outer side of the rotating rod is fixedly connected to a mounting cylinder, the interior of the mounting cylinder is slidably connected to a sliding ring, the bottom end of the sliding ring is fixedly connected to a support rod, a return spring is fixedly connected between the interior of the support rod and the interior of the mounting cylinder, the bottom of the support rod is fixedly connected to a mounting head, and the inner side of the mounting head is fixedly connected to a fixing column The outer sleeve of the fixed column is provided with a torsion spring, the outer rotatable connection of the fixed column is provided with a connecting block, the bottom of the connecting block is fixedly connected with a clamping plate, the outer top end of the support rod is fixedly connected with a connecting pipe, the inner side of the connecting pipe is threadedly connected with a threaded hollow rod, the top of the threaded hollow rod is fixedly connected with a fixing ring, the outer side of the threaded hollow rod is slidingly connected with an air pressure cap, a plurality of air leakage holes are provided on the outer wall of the air pressure cap, a pressure spring is fixedly connected between the bottom of the fixing ring and the inner bottom end of the air pressure cap, and a connecting hose is fixedly connected to the side of the mounting tube close to the inner sleeve.

[0009] Preferably, the welding cleaning mechanism includes a mounting column, one end of the mounting column is fixedly connected to the top of the automatic welding gun, the other end of the mounting column is fixedly connected to a mounting box, the interior of the mounting box is rotatably connected to an impeller, the middle part of the impeller is fixedly connected to a cleaning brush, the outside of the mounting box is fixedly connected to an air nozzle, the outside of the air nozzle is fixedly connected to a connecting soft air pipe, and the bottom end of the connecting soft air pipe is fixedly connected to the outside of the connecting air pipe.

[0010] Preferably, the bidirectional threaded rod is rotatably connected to the inside of the sliding groove, and the bottoms of the two sliding blocks are slidably connected to both sides of the inside of the sliding groove.

[0011] Preferably, one end of the torsion spring is fixedly connected to the outside of the fixing column, and the other end of the torsion spring is fixedly connected to the inner side of the connecting block.

[0012] Preferably, the torsion spring is arranged inside the connecting block, and a non-slip pad is fixedly connected to a side of the clamping plate away from the connecting block.

[0013] Preferably, the fixing ring is slidably connected to the inside of the air pressure cap, and a sealing sleeve is provided on the outside of the fixing ring.

[0014] Preferably, the outside of the support rod passes through a side of the mounting tube close to the clamping plate, and the side of the connecting hose away from the mounting tube is fixedly connected to the outside of the electric valve.

[0015] Working principle: When welding a larger object, first start the motor. The output end of the motor rotates to drive the bidirectional threaded rod to rotate. After the bidirectional threaded rod rotates, it drives the sliding block to move to the middle, and then drives the outer sleeve to move to the middle, thereby driving the inner sleeve, the gear ring and the support frame to move to the middle, thereby driving the clamping mechanism to move to the middle. Since the welding object is large, two clamping mechanisms can be used to clamp the object. Start the motor. After the output end of the motor rotates, it can drive the gear to rotate. The gear drives the gear ring to rotate. After the gear ring rotates, it drives the inner sleeve to rotate. After the inner sleeve rotates, it drives the clamping mechanism to rotate. After the clamping mechanism rotates, it can drive the object to rotate. At this time, start the robotic arm. The robotic arm can drive the automatic welding gun to move, and then use the automatic welding gun to weld at various positions of the object.

[0016] When generating air pressure, the air pump is started first, and the output end of the air pump transmits the gas into the interior of the pressure regulating tank through the connecting air pipe, and then the pressure regulating tank is used to pass the gas into the interior of the air outlet pipe and the support pipe respectively, and then the gas is transmitted to the interior of the electric valve through the air outlet pipe and the support pipe;

[0017] When clamping, first use the adjustment mechanism to adjust the position of the two clamping mechanisms, start the hydraulic cylinder, and after the output end of the hydraulic cylinder is extended, it will drive the mounting plate to move outward, thereby driving the push-pull rod to move outward, and by pulling the push-pull rod, the rotating rod can be driven to rotate toward the middle. When the output end of the hydraulic cylinder is retracted, it can drive the mounting plate to move toward the middle, thereby driving the push-pull rod to move toward the middle, and then driving the rotating rod to rotate outward, and then driving the mounting tube to rotate outward. When the mounting tube rotates toward the middle, it can drive the side of the support rod away from the outer sleeve to move toward the middle, and then it can drive The movable mounting head and the clamping plate rotate toward the middle, and when the mounting tube rotates toward the outside, it will drive the support rod to expand outward away from the outer sleeve, and then drive the mounting head and the clamping plate to expand outward. When the clamping plate moves to the vicinity of the outside of the receiver part, the electric valve of the clamping mechanism on the side where the receiver part needs to be clamped is opened, so that the electric valve can be used to transmit gas to the connecting hose. At this time, the gas in the connecting hose enters the content of the mounting tube, and the air inside the mounting tube is used to move the sliding ring toward the direction of the clamping plate, thereby driving the support rod, the mounting head and the clamping plate to move toward the direction of the receiver part, and fitting the clamping plate to the The outside of the receiver part and the receiver part is clamped by air pressure. When the clamping plate contacts the outside of the receiver part, in order to fit the outer surface of the receiver part, the clamping plate will rotate along the outer surface of the receiver part, thereby driving the connecting block to rotate. When the clamping is completed, the connecting block will be driven to rotate under the action of the torsion spring, thereby driving the clamping plate to rotate and reset, so that the clamping plate and the outer wall of the receiver part can fit together next time. When the clamping plate contacts the outer wall of the receiver part, if the shape of the receiver part is uneven, since multiple clamping mechanisms are set, no matter which clamping plate contacts the outer surface of the receiver part first, the clamping plate that contacts the receiver part The holding plate will not move any more, while gas will continue to flow into the interior of the test installation tube. When the gas pressure in the installation tube reaches a certain level, it will enter the interior of the threaded hollow rod through the connecting pipe. At this time, the high-pressure gas will push the gas pressure cap to move outward. When the air bleed hole on the gas pressure cap moves to the top of the fixing ring, the gas will be discharged through the air bleed hole, so it will not cause damage to the interior of the installation tube. At the same time, it can also tightly contact the outer surface of the receiver parts. Multiple clamping plates will be against different outer walls of the receiver parts, and then they can adapt to the uneven outer surface of the receiver parts, so that the receiver parts are clamped more tightly and adapt to the different shapes of the receiver parts.

[0018] Before welding the casing parts, the control switch valve between the connecting soft air pipe and the connecting air pipe is opened, so that the gas in the connecting air pipe will enter the installation box through the connecting soft air pipe, and then drive the impeller to rotate. After the impeller rotates, it can drive the cleaning brush to rotate, and then the outer surface of the casing parts can be brushed and cleaned with the cooperation of the robotic arm. At the same time, the gas entering the installation box will be ejected through the nozzle to blow away the cleaned dust, so that the welding parts of the casing parts can be kept clean and impurities can be prevented from affecting the welding.

[0019] The present invention provides a positioning welding tool for manufacturing aviation casing parts. It has the following beneficial effects:

[0020] 1. The present invention realizes that the gas connection mechanism can be used to drive the clamping mechanism to automatically clamp the parts through the composition of the gas connection mechanism and the clamping mechanism, thereby reducing manual participation and improving the degree of automation of the tooling, thereby saving time and labor, improving the clamping efficiency, and further improving the welding efficiency.

[0021] 2. The present invention can clamp parts using two clamping mechanisms or one clamping mechanism through the setting of the adjustment mechanism and the electric valve. Therefore, it can not only clamp larger parts, but also clamp smaller parts, thereby expanding the scope of use of the welding tooling and increasing the practicability of the welding tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the electric valve in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the gear in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the mounting plate in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the inner sleeve in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the sliding ring in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the fixing ring in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the connection block in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the nozzle in the present invention.

[0031] Among them, 1. chassis; 2. adjustment mechanism; 201. sliding groove; 202. motor; 203. bidirectional threaded rod; 204. sliding block; 205. motor; 206. gear; 207. outer sleeve; 208. inner sleeve; 209. gear ring; 210. support frame; 211. hydraulic cylinder; 212. mounting plate; 213. push-pull rod; 214. fitting groove; 3. gas connection mechanism; 301. air pump; 302. pressure stabilizing tank; 303. connecting air pipe; 304. outlet pipe; 305. support pipe; 306. electric valve; 4. clamping mechanism; 401. mounting rod; 402. rotating rod; 403 , mounting cylinder; 404, sliding ring; 405, support rod; 406, return spring; 407, mounting head; 408, fixing column; 409, torsion spring; 410, connecting block; 411, clamping plate; 412, connecting pipe; 413, threaded hollow rod; 414, fixing ring; 415, pressure spring; 416, air pressure cap; 417, air vent; 418, connecting hose; 5, welding cleaning mechanism; 501, mounting column; 502, mounting box; 503, impeller; 504, cleaning brush; 505, jet nozzle; 506, connecting soft air pipe; 6, mechanical arm; 7, automatic welding gun; 8, casing parts. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example:

[0034] Please refer to the attached Figure 1 -Attached Fig. 9 The embodiment of the present invention provides a positioning welding tool for manufacturing aviation casing parts, including a chassis 1, an adjusting mechanism 2 is arranged inside the chassis 1, the adjusting mechanism 2 is used to adjust the position of the welding tool clamping component, a gas connecting mechanism 3 is arranged on the top of the chassis 1, the gas connecting mechanism 3 is used to generate power gas, a plurality of clamping mechanisms 4 are arranged outside the adjusting mechanism 2, the clamping mechanism 4 is used to clamp the aviation casing parts, a mechanical arm 6 is fixedly connected to one side of the chassis 1, the mechanical arm 6 is used to adjust the welding position, an automatic welding gun 7 is detachably connected to the top of the mechanical arm 6, the automatic welding gun 7 is used for automatic welding of parts, a welding cleaning mechanism 5 is arranged on the top of the mechanical arm 6, a casing part 8 is arranged between the plurality of clamping mechanisms 4, and the welding cleaning mechanism 5 can clean the welding part of the casing part 8.

[0035] The adjusting mechanism 2 includes a sliding groove 201, which provides an installation position. The sliding groove 201 is opened inside the chassis 1. The outside of the chassis 1 is fixedly connected with a motor 202. The motor 202 can provide power for the position adjustment of the clamping mechanism 4. The output end of the motor 202 is fixedly connected with a bidirectional threaded rod 203. The external threads of the bidirectional threaded rod 203 are connected to two sliding blocks 204. The bidirectional threaded rod 203 can drive the sliding blocks 204 to move. The outside of one of the sliding blocks 204 is fixedly connected with a motor 205. The motor 205 can provide a rotational force for the casing part 8 clamped by the clamping mechanism 4. The output end of the motor 205 is fixedly connected with a gear Wheel 206, the top of the sliding block 204 is fixedly connected with an outer sleeve 207, the outer sleeve 207 provides a mounting position, the inner side of the outer sleeve 207 is rotatably connected with an inner sleeve 208, the outer side of one of the inner sleeves 208 is fixedly connected with a gear ring 209, the gear 206 can drive the gear ring 209 to rotate, and can drive the inner sleeve 208 to rotate, the inner side of the inner sleeve 208 is fixedly connected with a support frame 210, the support frame 210 can provide a mounting position, the middle part of the support frame 210 is fixedly connected with a hydraulic cylinder 211, the output end of the hydraulic cylinder 211 is fixedly connected with a mounting plate 212, the hydraulic cylinder 211 can drive the mounting plate 212 to move, the outer four The outer bottom end of the outer sleeve 207 is provided with a fitting groove 214, and the gear 206 is meshed with the gear ring 209 through the fitting groove 214. The bidirectional threaded rod 203 is rotatably connected to the inside of the sliding groove 201, and the bottoms of the two sliding blocks 204 are slidably connected to the inner sides of the sliding groove 201. When welding a larger object, the motor 202 is first started, and the output end of the motor 202 rotates to drive the bidirectional threaded rod 203 to rotate. After the bidirectional threaded rod 203 rotates, it drives the sliding block 204 to move toward the middle, and then the outer sleeve 207 can be driven to move toward the middle, thereby driving the inner sleeve 208, the gear ring 209 and The support frame 210 moves toward the middle, thereby driving the clamping mechanism 4 to move toward the middle. Since the welding object is large, two clamping mechanisms 4 can be used to clamp the object. The motor 205 is started. After the output end of the motor 205 rotates, it can drive the gear 206 to rotate. The gear 206 drives the ring gear 209 to rotate. After the ring gear 209 rotates, it drives the inner sleeve 208 to rotate. After the inner sleeve 208 rotates, it drives the clamping mechanism 4 to rotate. After the clamping mechanism 4 rotates, it can drive the object to rotate. At this time, the robot arm 6 is started. The robot arm 6 can drive the automatic welding gun 7 to move, and then the automatic welding gun 7 is used to weld various positions of the object.

[0036] The gas connection mechanism 3 includes an air pump 301, which can provide power for inflation. The bottom of the air pump 301 is fixedly connected to a corner of the top of the chassis 1. The top of the chassis 1 is fixedly connected with a pressure-stabilizing tank 302, which can store gas. A connecting air pipe 303 is fixedly connected between the output end of the air pump 301 and the outside of the pressure-stabilizing tank 302. The connecting air pipe 303 plays a role of communication. The top of the pressure-stabilizing tank 302 is fixedly connected with an outlet pipe 304, and the outer bottom of the pressure-stabilizing tank 302 is fixedly connected with a support pipe 305. The outlet pipe 304 and the support pipe 305 are connected to each other. The support pipes 305 all play a connecting role, and one end of the air outlet pipe 304 and the support pipe 305 are fixedly connected with an electric valve 306. The electric valve 306 plays a connecting role and can also control the on-off of the air circuit. When generating air pressure, the air pump 301 is first started, and the output end of the air pump 301 transmits the gas into the interior of the pressure-stabilizing tank 302 through the connecting air pipe 303, and then the pressure-stabilizing tank 302 is used to pass the gas into the interior of the air outlet pipe 304 and the support pipe 305 respectively, and then the gas is transmitted to the interior of the electric valve 306 through the air outlet pipe 304 and the support pipe 305.

[0037] The clamping mechanism 4 includes a plurality of mounting rods 401, wherein the mounting rods 401 provide mounting positions, the outer portion of the mounting rods 401 is fixedly connected to the inner side of the inner sleeve 208, and the side of the mounting rods 401 away from the inner sleeve 208 is rotatably connected to a rotating rod 402, and the rotating rod 402 can be connected to the push-pull rod 213, so as to achieve the use of the push-pull rod 213 to drive the clamping mechanism 4 to adjust the clamping position of the casing part 8, the inner side of the rotating rod 402 is rotatably connected to the end of the push-pull rod 213 away from the mounting plate 212, and the outer side of the rotating rod 402 is fixedly connected to a mounting cylinder 403, and the mounting cylinder 403 provides a mounting position and a gas accommodating position, and the interior of the mounting cylinder 403 is slidably connected to a sliding ring 404, and the sliding ring 404 plays a role of limiting. The bottom end of 4 is fixedly connected with a support rod 405, and the support rod 405 can play the role of connection and driving. A reset spring 406 is fixedly connected between the inside of the support rod 405 and the inside of the mounting tube 403, and the reset spring 406 can pull the support rod 405 to reset. The bottom of the support rod 405 is fixedly connected with a mounting head 407, and the mounting head 407 plays the role of installation. The inner side of the mounting head 407 is fixedly connected with a fixing column 408, and the fixing column 408 plays the role of installation. The outer sleeve of the fixing column 408 is provided with a torsion spring 409, and the torsion spring 409 provides an installation position. The outer rotation of the fixing column 408 is connected with a connecting block 410, and the connecting block 410 plays the role of connection. The bottom of the connecting block 410 is fixedly connected with a clamping plate 411. The clamping plate 411 is convenient for clamping the outer wall of the casing part 8. The external top end of the support rod 405 is fixedly connected with a connecting pipe 412, and the connecting pipe 412 can play a role in ventilation. The inner side of the connecting pipe 412 is threadedly connected with a threaded hollow rod 413, and the top of the threaded hollow rod 413 is fixedly connected with a fixing ring 414, and the fixing ring 414 can provide a limiting function. The outer side of the threaded hollow rod 413 is slidably connected with a gas pressure cap 416, and a plurality of air leakage holes 417 are provided on the outer wall of the gas pressure cap 416. A pressure spring 415 is fixedly connected between the bottom of the fixing ring 414 and the inner bottom end of the gas pressure cap 416, and the pressure spring 415 can increase the pressure. The side of the mounting tube 403 close to the inner sleeve 208 is fixedly connected with a connecting hose 418 , the connecting hose 418 can play a role of communication, one end of the torsion spring 409 is fixedly connected to the outside of the fixing column 408, and the other end of the torsion spring 409 is fixedly connected to the inner side of the connecting block 410. The torsion spring 409 is arranged inside the connecting block 410, and the side of the clamping plate 411 away from the connecting block 410 is fixedly connected with an anti-slip pad, the fixing ring 414 is slidably connected to the inside of the air pressure cap 416, and the outer sleeve of the fixing ring 414 is provided with a sealing sleeve. The outside of the support rod 405 passes through the side of the mounting tube 403 close to the clamping plate 411, and the side of the connecting hose 418 away from the mounting tube 403 is fixedly connected to the outside of the electric valve 306. When clamping, first use the adjusting mechanism 2 to adjust the position of the two clamping mechanisms 4, start the hydraulic cylinder 211,After the output end of the hydraulic cylinder 211 is extended, it will drive the mounting plate 212 to move outward, thereby driving the push-pull rod 213 to move outward, and the push-pull rod 213 can drive the rotating rod 402 to rotate toward the middle. When the output end of the hydraulic cylinder 211 is retracted, it can drive the mounting plate 212 to move toward the middle, thereby driving the push-pull rod 213 to move toward the middle, and then drive the rotating rod 402 to rotate outward, and then drive the mounting tube 403 to rotate outward. When the mounting tube 403 rotates toward the middle, it can drive the side of the support rod 405 away from the outer sleeve 207 to move toward the middle, and then drive the mounting head 407 and the clamping plate 411 to rotate toward the middle. When the mounting cylinder 403 rotates outward, it will drive the support rod 405 to expand outward away from the outer sleeve 207, and then drive the mounting head 407 and the clamping plate 411 to expand outward. When the clamping plate 411 moves to the vicinity of the outer side of the receiver part 8, the electric valve 306 of the clamping mechanism 4 on the side that needs to clamp the receiver part 8 is opened, so that the electric valve 306 can be used to transmit gas to the connecting hose 418. At this time, the gas in the connecting hose 418 enters the content of the mounting cylinder 403, and the air inside the mounting cylinder 403 is used to move the sliding ring 404 toward the direction of the clamping plate 411, thereby driving the support rod 405, the mounting head 407 and the clamping plate 411 to move toward the direction of the receiver part 8, and The clamping plate 411 is fitted to the outside of the receiver part 8, and the receiver part 8 is clamped by air pressure. When the clamping plate 411 contacts the outside of the receiver part 8, in order to fit the outer surface of the receiver part 8, the clamping plate 411 will rotate along the outer surface of the receiver part 8, thereby driving the connecting block 410 to rotate. After the clamping is completed, the connecting block 410 will be driven to rotate under the action of the torsion spring 409, thereby driving the clamping plate 411 to rotate and reset, so that the clamping plate 411 can fit the outer wall of the receiver part 8 next time. When the clamping plate 411 contacts the outer wall of the receiver part 8, if the shape of the receiver part 8 is uneven, since multiple clamping mechanisms 4 are set, no matter which clamping plate 411 contacts the receiver first The outer surface of the part 8 contacts the clamping plate 411 of the receiver part 8 and will not move anymore, while gas continues to enter the interior of the test installation tube 403. When the air pressure in the installation tube 403 reaches a certain level, it will enter the interior of the threaded hollow rod 413 through the connecting pipe 412. At this time, the high-pressure gas will push the air pressure cap 416 to move outward. When the air leakage hole 417 on the air pressure cap 416 moves to the top of the fixing ring 414, the gas will be discharged through the air leakage hole 417, so that the interior of the installation tube 403 will not be damaged. At the same time, it can also tightly contact the outer surface of the receiver part 8. Multiple clamping plates 411 will all be against different outer walls of the receiver part 8, and then they can adapt to the uneven outer surface of the receiver part 8.The receiver part 8 is clamped more firmly and adapted to different shapes of the receiver part 8.

[0038] The welding cleaning mechanism 5 includes a mounting column 501, which can play a connecting role. One end of the mounting column 501 is fixedly connected to the top of the automatic welding gun 7, and the other end of the mounting column 501 is fixedly connected to a mounting box 502, which can provide a space for installation. The internal rotation of the mounting box 502 is connected to an impeller 503, and the impeller 503 can be driven to rotate under the action of gas flow. A cleaning brush 504 is fixedly connected to the middle of the impeller 503, and the cleaning brush 504 can clean the welding part of the casing part 8. The outside of the mounting box 502 is fixedly connected to an air nozzle 505, and the air nozzle 505 can blow out the cleaned dust and the dust in the gap. The outside of the air nozzle 505 is fixedly connected to a soft air pipe 506 The bottom end of the connecting soft air pipe 506 is fixedly connected to the outside of the connecting air pipe 303. Before welding the casing part 8, the control switch valve between the connecting soft air pipe 506 and the connecting air pipe 303 is opened. Therefore, the gas in the connecting air pipe 303 will enter the installation box 502 through the connecting soft air pipe 506, and then drive the impeller 503 to rotate. After the impeller 503 rotates, it can drive the cleaning brush 504 to rotate, and then the outer surface of the casing part 8 can be brushed and cleaned with the cooperation of the mechanical arm 6. At the same time, the gas entering the installation box 502 will be ejected through the nozzle 505 to blow away the cleaned dust, so as to keep the welding part of the casing part 8 clean and prevent impurities from affecting the welding.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning welding tool for manufacturing aircraft casing parts, comprising a chassis (1), characterized in that: An adjusting mechanism (2) is arranged inside the chassis (1), and the adjusting mechanism (2) is used to adjust the position of a welding fixture clamping component. A gas connecting mechanism (3) is arranged on the top of the chassis (1), and the gas connecting mechanism (3) is used to generate power gas. A plurality of clamping mechanisms (4) are arranged outside the adjusting mechanism (2), and the clamping mechanisms (4) are used to clamp aircraft casing parts. A mechanical arm (6) is fixedly connected to one side of the chassis (1), and the mechanical arm (6) is used to adjust the welding position. An automatic welding gun (7) is detachably connected to the top of the mechanical arm (6), and the automatic welding gun (7) is used for automatic welding of parts. A welding cleaning mechanism (5) is arranged on the top of the mechanical arm (6), and casing parts (8) are arranged between the plurality of clamping mechanisms (4). The adjusting mechanism (2) comprises a sliding groove (201), wherein the sliding groove (201) is provided inside the chassis (1), the outside of the chassis (1) is fixedly connected to a motor (202), the output end of the motor (202) is fixedly connected to a bidirectional threaded rod (203), the external threads of the bidirectional threaded rod (203) are connected to two sliding blocks (204), the outside of one of the sliding blocks (204) is fixedly connected to a motor (205), the output end of the motor (205) is fixedly connected to a gear (206), the top of the sliding block (204) is fixedly connected to a jacket (207), and the jacket (207) is fixedly connected to the outer surface of the sliding block (204). ) is rotatably connected to the inner side of an inner sleeve (208), wherein the outer side of one of the inner sleeves (208) is fixedly connected to a gear ring (209), the inner side of the inner sleeve (208) is fixedly connected to a support frame (210), the middle part of the support frame (210) is fixedly connected to a hydraulic cylinder (211), the output end of the hydraulic cylinder (211) is fixedly connected to a mounting plate (212), the four outer corners of the mounting plate (212) are rotatably connected to push-pull rods (213), the outer bottom end of the outer sleeve (207) is provided with a mating groove (214), and the gear (206) is meshingly connected to the gear ring (209) via the mating groove (214); The clamping mechanism (4) comprises a plurality of mounting rods (401), the outside of the mounting rods (401) being fixedly connected to the inside of the inner sleeve (208), the side of the mounting rods (401) away from the inner sleeve (208) being rotatably connected to a rotating rod (402), the inside of the rotating rod (402) being rotatably connected to an end of the push-pull rod (213) away from the mounting plate (212), the outside of the rotating rod (402) being fixedly connected to a mounting cylinder (403), the inside of the mounting cylinder (403) being slidably connected to a sliding ring (404), the bottom end of the sliding ring (404) being fixedly connected to a support rod (405), the inside of the support rod (405) and the inside of the mounting cylinder (403) being fixedly connected to a return spring (406), the bottom of the support rod (405) being fixedly connected to a mounting head (407), the inside of the mounting head (407) being fixedly connected to a fixing column (408), the outside of the fixing column (408) being sleeved A torsion spring (409) is provided. The outside of the fixed column (408) is rotatably connected to a connecting block (410). The bottom of the connecting block (410) is fixedly connected to a clamping plate (411). The top of the outside of the support rod (405) is fixedly connected to a connecting pipe (412). The inside of the connecting pipe (412) is threadedly connected to a threaded hollow rod (413). The top of the threaded hollow rod (413) is fixedly connected to a fixing ring (414). The outside of the threaded hollow rod (413) is slidably connected to a gas pressure cap (416). The outer wall of the gas pressure cap (416) is provided with a plurality of air leakage holes (417). A pressure spring (415) is fixedly connected between the bottom of the fixing ring (414) and the inner bottom end of the gas pressure cap (416). A connecting hose (418) is fixedly connected to the side of the mounting tube (403) close to the inner sleeve (208). The gas connection mechanism (3) generates power gas and transmits it to the connecting hose (418).

2. A positioning welding tool for manufacturing aircraft casing parts according to claim 1, characterized in that: The gas connection mechanism (3) comprises an air pump (301), the bottom of the air pump (301) is fixedly connected to a corner of the top of the chassis (1), the top of the chassis (1) is fixedly connected to a pressure-stabilizing tank (302), a connecting air pipe (303) is fixedly connected between the output end of the air pump (301) and the outside of the pressure-stabilizing tank (302), the top of the pressure-stabilizing tank (302) is fixedly connected to an air outlet pipe (304), the bottom of the outside of the pressure-stabilizing tank (302) is fixedly connected to a support pipe (305), and one end of each of the air outlet pipe (304) and the support pipe (305) is fixedly connected to an electric valve (306).

3. The positioning welding tool for manufacturing aircraft casing parts according to claim 1 is characterized in that: The welding cleaning mechanism (5) comprises a mounting column (501), one end of the mounting column (501) is fixedly connected to the top of the automatic welding gun (7), the other end of the mounting column (501) is fixedly connected to a mounting box (502), the interior of the mounting box (502) is rotatably connected to an impeller (503), the middle of the impeller (503) is fixedly connected to a cleaning brush (504), the exterior of the mounting box (502) is fixedly connected to an air jet head (505), the exterior of the air jet head (505) is fixedly connected to a connecting soft air pipe (506), and the bottom end of the connecting soft air pipe (506) is fixedly connected to the exterior of the connecting air pipe (303).

4. The positioning welding tool for manufacturing aircraft casing parts according to claim 1 is characterized in that: The bidirectional threaded rod (203) is rotatably connected to the inside of the sliding groove (201), and the bottoms of the two sliding blocks (204) are slidably connected to the two sides of the inside of the sliding groove (201).

5. The positioning welding tool for manufacturing aircraft casing parts according to claim 1 is characterized in that: One end of the torsion spring (409) is fixedly connected to the outside of the fixing column (408), and the other end of the torsion spring (409) is fixedly connected to the inside of the connecting block (410).

6. The positioning welding tool for manufacturing aircraft casing parts according to claim 1 is characterized in that: The torsion spring (409) is arranged inside the connecting block (410), and a side of the clamping plate (411) away from the connecting block (410) is fixedly connected to an anti-slip pad.

7. The positioning welding tool for manufacturing aircraft casing parts according to claim 1 is characterized in that: The fixing ring (414) is slidably connected to the inside of the air pressure cap (416), and a sealing sleeve is provided on the outside of the fixing ring (414).

8. The positioning welding tool for manufacturing aircraft casing parts according to claim 1 is characterized in that: The outside of the support rod (405) passes through a side of the mounting tube (403) close to the clamping plate (411), and the side of the connecting hose (418) away from the mounting tube (403) is fixedly connected to the outside of the electric valve (306).

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