Numerical control gantry type drilling, grinding and welding combined machining equipment

Abstract

The application discloses a numerical control gantry type drilling, grinding and welding combined machining equipment and belongs to the technical field of combined machining equipment. The numerical control gantry type drilling, grinding and welding combined machining equipment comprises a mounting plate, parts to be machined are placed on the mounting plate, a mounting frame is installed on the mounting plate, a three-axis moving assembly is installed on the mounting frame and located above the mounting plate, a third moving frame connected with the three-axis moving assembly is further installed above the mounting plate, three groups of lifting assemblies and three chucks are installed on the third moving frame, a drill bit, a grinding disc and a welding gun are respectively installed on each chuck, a first protective cover is fixedly installed on one side of the third moving frame, a welding wire guide pipe, a first blowing pipe, a welding wire conveying assembly connected with the welding wire guide pipe and a gas blowing assembly connected with the first blowing pipe are installed in the first protective cover, a second protective cover is fixedly installed on the other side of the third moving frame, a second blowing pipe, a spraying pipe, a water tank communicated with the spraying pipe, a synchronous conveying assembly connected with the second blowing pipe and the water tank are installed in the second protective cover.

Description

Technical Field

[0001] This invention relates to the field of combined processing equipment technology, and specifically discloses a CNC gantry-type drilling, grinding, and welding combined processing equipment. Background Technology

[0002] CNC gantry machining equipment is a core precision machining equipment in fields such as machinery manufacturing, aerospace, rail transportation, and large structural component processing. With its advantages of wide processing range, high precision, strong stability, and good adaptability, it is widely used in multi-process processing of various large and heavy workpieces. It can achieve precise positioning and efficient processing of workpieces, directly determining the workpiece processing quality and production efficiency. It is an indispensable key equipment in the modern large-scale and precision machining industry.

[0003] CNC gantry-type drilling, grinding, and welding combined machining equipment, as an important sub-type of CNC gantry machining equipment, is positioned to integrate multiple processing functions such as drilling, grinding, and welding. Relying on the CNC system, it realizes automated and continuous processing of multiple processes, and can complete the integrated processing of drilling, grinding, and welding of workpieces without frequent changes of processing equipment. It is suitable for processing large workpieces of different specifications and materials, and is widely used in the processing and production of large mechanical components, steel structural parts, machine tool parts, etc. It is an important piece of equipment for improving processing efficiency, ensuring processing accuracy, and reducing manual intervention.

[0004] In some existing equipment, welding wire needs to be manually fed by the operator during the welding process. Manual wire feeding is not only labor-intensive and uneven in wire feeding accuracy, but it can also interrupt the processing flow, reducing welding efficiency and quality. At the same time, a large amount of processing debris is generated during drilling, grinding, and welding. This debris is easy to remain on the worktable, processing area, and key components of the equipment. If it is not cleaned in time, it will interfere with subsequent drilling, grinding, and welding processes, affecting processing accuracy and surface quality. It may also accelerate the wear of equipment components and shorten the service life of the equipment. Therefore, a CNC gantry-type drilling, grinding, and welding combined processing equipment has been invented to address this defect. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution: a CNC gantry-type drilling, grinding, and welding combined processing equipment, comprising a mounting plate, a part to be processed placed on the mounting plate, a mounting frame mounted on the mounting plate, a three-axis moving assembly mounted on the mounting frame located above the mounting plate, a third moving frame connected to the three-axis moving assembly mounted above the mounting plate, three sets of lifting assemblies and three chucks mounted on the third moving frame, each chuck being respectively equipped with a drill bit, a grinding disc and a welding gun.

[0006] A first protective cover is fixedly installed on one side of the third movable frame. Inside the first protective cover are a welding wire guide tube, a first air blowing tube, a welding wire conveying assembly connected to the welding wire guide tube, and an air blowing assembly connected to the first air blowing tube.

[0007] A second protective cover is fixedly installed on the other side of the third mobile frame. Inside the second protective cover are a second air blower, a spray pipe, a water tank connected to the spray pipe, and a synchronous conveying assembly connected to the second air blower and the water tank.

[0008] Furthermore, the lifting assembly includes a first electric cylinder, a mounting box is fixedly installed on the telescopic end of the first electric cylinder, a chuck is installed on the end of the mounting box away from the first electric cylinder, a first protective cover is adjacent to the mounting box connected to the chuck on which the welding gun is installed, a second protective cover is adjacent to the mounting box connected to the chuck on which the drill bit is installed, and the mounting box connected to the chuck on which the grinding disc is installed is located in the middle.

[0009] Furthermore, a vertical groove is provided on the side of the first protective cover, and a first slider is slidably installed on the inner wall of the vertical groove. The first slider is fixedly connected to the mounting box. The first slider is slidably installed on the side of the third movable frame. The welding wire feeding assembly includes a first turntable rotatably installed on the side of the first slider. Welding wire is wound on the outer surface of the first turntable. A fourth motor is slidably installed on the side of the third movable frame. The output end of the fourth motor is fixedly connected to the first turntable. The inlet of the welding wire guide tube is located below the first turntable, and the outlet of the welding wire guide tube is located above the mounting plate.

[0010] Furthermore, the third movable frame is provided with a mounting groove on its side. A limit shaft is slidably mounted on the inner wall of the mounting groove. A fixed clamping plate is fixedly mounted on the outer surface of the limit shaft. A movable clamping plate is also slidably mounted on the outer surface of the limit shaft. A fixed plate is fixedly mounted on the lower side of the fixed clamping plate and is slidably connected to the movable clamping plate. A second electric cylinder is fixedly mounted on the fixed plate. The telescopic end of the second electric cylinder is fixedly connected to the movable clamping plate. Both the fixed clamping plate and the movable clamping plate are located below the first turntable.

[0011] Furthermore, when the telescopic end of the second electric cylinder is extended to its maximum length, the distance between the two opposite sides of the moving clamp and the fixed clamp is 0.8 to 0.9 times the diameter of the welding wire.

[0012] Furthermore, a push rod is fixedly installed on the side of the movable clamp away from the fixed clamp, and a strike rod is fixedly installed on the side of the first turntable away from the third movable frame. Furthermore, the impact rod can push the push rod to move, thereby causing the limit shaft to slide along the inner wall of the mounting groove. A first contact switch and a second slider are fixedly installed on the inner wall of the mounting groove. Both the first contact switch and the second slider are electrically connected to the second electric cylinder.

[0013] Furthermore, the air blowing assembly includes a first piston rod fixedly mounted on a fixed plate, a piston one fixedly mounted at the end of the first piston rod away from the fixed plate, the piston one being slidably mounted on the inner wall of the first air blowing pipe, and the output end of the first air blowing pipe facing the mounting plate.

[0014] Furthermore, an injection pipe connected to the upper part of the water tank is installed, a piston two is slidably installed on the inner wall of the injection pipe, a piston three is slidably installed on the inner wall of the second air blowing pipe, and the synchronous conveying assembly includes a second piston rod and a third piston rod. The second piston rod is fixedly installed on the piston two, the third piston rod is fixedly installed on the piston three, and a fixing rod is fixedly installed between the second piston rod and the third piston rod.

[0015] Furthermore, a fifth motor is fixedly installed on the side of the third movable frame, a second turntable is fixedly installed at the output end of the fifth motor, a connecting rod is rotatably installed on the side of the second turntable away from the fifth motor, and the end of the connecting rod away from the second turntable is rotatably connected to the fixed rod.

[0016] The beneficial effects of the present invention are: (1) The present invention realizes the feeding of welding wire through the welding wire feeding assembly, and at the same time realizes the blowing function by the power of the welding wire feeding, thereby realizing the blowing of protective gas to the welding place during welding, thereby improving work efficiency and ensuring the safe conduct of welding work.

[0017] (2) The present invention achieves synchronous movement of piston two and piston three through synchronous conveying components, thereby achieving synchronous spraying of gas and cooling cutting fluid onto the workpiece to be processed, thereby achieving simultaneous cooling and cleaning of machining debris, thus improving work efficiency. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0019] Figure 2 This is a schematic diagram showing the connection relationship between the mounting plate and the mounting bracket proposed in this invention.

[0020] Figure 3 This is a schematic diagram showing the connection relationship between the second and third movable frames proposed in this invention.

[0021] Figure 4 The present invention proposes Figure 3 A magnified view of a portion of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the welding wire feeding assembly proposed in this invention.

[0023] Figure 6 The present invention proposes Figure 5 A magnified view of a portion of point B in the diagram.

[0024] Figure 7 The present invention proposes Figure 5 A magnified view of a portion of point C in the middle.

[0025] Figure 8 This is a schematic diagram showing the position of the second protective cover proposed in this invention.

[0026] Figure 9 This is a schematic diagram of the synchronous conveying component structure proposed in this invention.

[0027] Figure 10 The present invention proposes Figure 9 A magnified view of a portion of point D in the middle.

[0028] Reference numerals: 101-Mounting plate; 102-Mounting bracket; 201-First motor; 202-First helical rod; 203-First moving frame; 204-Second motor; 205-Second helical rod; 206-Second moving frame; 207-Third motor; 208-Third helical rod; 209-Third moving frame; 210-Connecting frame; 301-First electric cylinder; 302-Mounting box; 303-Clamp; 401-First protective cover; 402-Welding wire guide tube; 403-First air blowing tube; 404-Vertical groove; 405-First slider; 406-First slide groove; 407-Second slide groove; 408-Motor bracket; 409-Fourth motor; 410-First turntable; 411-Mounting rod; 412- Vertical shaft; 413-Mounting block; 414-First piston rod; 415-Fixing plate; 416-Second electric cylinder; 417-Limiting shaft; 418-Fixing clamping plate; 419-Moving clamping plate; 420-Mounting groove; 421-First contact switch; 422-Second slider; 423-Intermediate shaft; 424-Spring; 425-Second contact switch; 426-Bumping rod; 427-Push rod; 501-Second protective cover; 502-Second blower pipe; 503-Spraying pipe; 504-Water tank; 505-Fifth motor; 506-Second turntable; 507-Connecting shaft; 508-Connecting rod; 509-Drive block; 510-Fixing rod; 511-Injection pipe; 512-Second piston rod; 513-Third piston rod. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0031] Appendix Figure 1 To the attached Figure 4 As shown, the system includes a mounting plate 101, on which a positioning fixture for positioning parts is fixedly mounted. The parts to be processed are placed on the positioning fixture on the mounting plate 101. A mounting frame 102 is fixedly mounted on the mounting plate 101, and a three-axis moving assembly located above the mounting plate 101 is mounted on the mounting frame 102. The three-axis moving assembly includes a first motor 201 fixedly mounted on the mounting frame 102, a first helical rod 202 fixedly mounted at the output end of the first motor 201, and a first moving frame 203 slidably mounted on the mounting frame 102, which forms a helical engagement with the first helical rod 202. A connecting frame 210 is fixedly installed between the two first movable frames 203. A second motor 204 is fixedly installed on one of the first movable frames 203. A second helical rod 205 is fixedly installed at the output end of the second motor 204. A second movable frame 206 that forms a helical engagement with the second helical rod 205 is slidably installed on the connecting frame 210. A third motor 207 is fixedly installed on the second movable frame 206. A third helical rod 208 is fixedly installed at the output end of the third motor 207. A third movable frame 209 that forms a helical engagement with the third helical rod 208 is slidably installed on the second movable frame 206.

[0032] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0033] Appendix Figure 3 To the attached Figure 7 As shown, the third movable frame 209 is equipped with three sets of lifting components and three chucks 303. A drill bit, a grinding disc, and a welding gun are respectively installed on the three chucks 303. The lifting components include a first electric cylinder 301. An installation box 302 is fixedly installed on the telescopic end of the first electric cylinder 301. The chucks 303 are rotatably installed at the end of the installation box 302 away from the first electric cylinder 301. The first protective cover 401 is adjacent to the installation box 302 connected to the chuck 303 with the welding gun. The second protective cover 501 is adjacent to the installation box 302 connected to the chuck 303 with the drill bit. The installation box 302 connected to the chuck 303 with the grinding disc is located in the middle. Motors are fixedly installed in the installation boxes 302 connected to the chucks 303 with the drill bit and the grinding disc, respectively. The output ends of the motors are fixedly connected to the chucks 303, and the motors can drive the drill bit and the grinding disc to rotate.

[0034] The required processing tools (such as welding guns, milling cutters, and grinding discs) are determined according to the processing technology. Then, the first motor 201, the second motor 204, and the third motor 207 are started. The first screw rod 202, the second screw rod 205, and the third screw rod 208 drive the third moving frame 209 to move, thereby moving the processing tools (such as welding guns, milling cutters, and grinding discs) on the corresponding chuck 303 to above the part.

[0035] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0036] Appendix Figure 3 To the attached Figure 8 As shown, a first protective cover 401 is fixedly installed on one side of the third movable frame 209. A welding wire guide tube 402 and a first air blowing tube 403 are installed inside the first protective cover 401. Parts of the welding wire guide tube 402 and the first air blowing tube 403 are located inside the first protective cover 401, while the remaining parts extend out of the first protective cover 401. A welding wire feeding assembly connected to the welding wire guide tube 402 and an air blowing assembly connected to the first air blowing tube 403 are installed inside the first protective cover 401. Nitrogen gas is installed inside the first protective cover 401. The output end of the nitrogen pump is connected to the inside of the first air blowing pipe 403. A vertical groove 404 is provided on the side of the first protective cover 401. A first slider 405 is slidably installed on the inner wall of the vertical groove 404. An installation rod 411 is slidably installed on the side of the first slider 405. A welding wire guide tube 402 is fixedly installed on the installation rod 411. The installation rod 411 is fixedly installed on the side of the third movable frame 209. The first slider 405 is fixedly connected to the mounting box 302. The movement of the mounting box 302 can drive the first slider 405 to slide along the inner wall of the vertical groove 404. As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0037] Appendix Figure 4 To the attached Figure 8As shown, the third movable frame 209 has a second slide groove 407 on its side, and the first slider 405 is slidably mounted on the inner wall of the second slide groove 407. The welding wire feeding assembly includes a first turntable 410 rotatably mounted on the side of the first slider 405, with welding wire wound on the outer surface of the first turntable 410. The third movable frame 209 has a first slide groove 406 on its side, and a vertical shaft 412 is fixedly mounted on the inner wall of the first slide groove 406. A motor bracket 408 is slidably mounted on the outer surface of the vertical shaft 412. The motor bracket 408 is slidably mounted on the inner wall of the first slide groove 406. A fourth motor 409 is fixedly mounted on the motor bracket 408. The output end of the fourth motor 409 is fixedly connected to the first turntable 410, and the output end of the fourth motor 409 is rotatably connected to the first slider 405. The inlet of the welding wire guide tube 402 is located below the first turntable 410, and the outlet of the welding wire guide tube 402 is located above the mounting plate 101.

[0038] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0039] Appendix Figure 5 To the attached Figure 9 As shown, the third movable frame 209 has a mounting groove 420 on its side. An intermediate shaft 423 is fixedly mounted on the inner wall of the mounting groove 420. A second slider 422 is slidably mounted on the outer surface of the intermediate shaft 423. A spring 424 is wound around the outer surface of the intermediate shaft 423. One end of the spring 424 is fixedly mounted on the outer surface of the intermediate shaft 423, and the other end of the spring 424 is fixedly mounted on the side of the second slider 422. A limit shaft 417 is fixedly mounted on the side of the second slider 422. A fixing plate 418 is fixedly mounted on the outer surface of the limit shaft 417. A sliding plate 422 is also slidably mounted on the outer surface of the limit shaft 417. A fixed plate 415 is fixedly installed on the lower side of the movable clamping plate 419 and the fixed clamping plate 418, and is slidably connected to the movable clamping plate 419. The fixed plate 415 is slidably installed on the side of the third movable frame 209. A second electric cylinder 416 is fixedly installed on the fixed plate 415. The telescopic end of the second electric cylinder 416 is fixedly connected to the movable clamping plate 419. Both the fixed clamping plate 418 and the movable clamping plate 419 are located below the first turntable 410. When the telescopic end of the second electric cylinder 416 is extended to its longest length, the distance between the two opposite sides of the movable clamping plate 419 and the fixed clamping plate 418 is 0.9 times the diameter of the welding wire.

[0040] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0041] Appendix Figure 5 To the attached Figure 9As shown, a push rod 427 is fixedly installed on the side of the movable clamping plate 419 away from the fixed clamping plate 418, and a strike rod 426 is fixedly installed on the side of the first turntable 410 away from the third movable frame 209. When the strike rod 426 contacts the push rod 427, the push rod 427 can be pushed to move by the strike rod 426, thereby driving the second slider 422 to slide along the inner wall of the mounting groove 420. When the strike rod 426 is about to disengage from the push rod 427, the second slider 422 contacts the first contact switch 421. At this time, the distance between the end face of the movable clamping plate 419 and the fixed clamping plate 418 and the inlet of the welding wire guide tube 402 is 5mm. During the entire process of the strike rod 426 contacting and disengaging from the push rod 427, the fixed clamping plate 418 is always in contact with the welding wire. The first contact switch 421 and the second slider 422 are fixedly installed on the inner wall of the mounting groove 420.

[0042] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0043] Appendix Figure 4 To the attached Figure 9 As shown, both the first contact switch 421 and the second slider 422 are electrically connected to the second electric cylinder 416. When the second slider 422 contacts the first contact switch 421, the first contact switch 421 sends an electrical signal to the second electric cylinder 416. At this time, the second electric cylinder 416 moves the moving clamp 419 away from the fixed clamp 418. When the second slider 422 contacts the second contact switch 425, the first contact switch 421 sends an electrical signal to the second electric cylinder 416. At this time, the second electric cylinder 416 moves the moving clamp 419 closer to the fixed clamp 418. In the initial state, the telescopic end of the second electric cylinder 416 is in the extended maximum state. At this time, the second slider 422 contacts the second contact switch 425.

[0044] When welding is required, the chuck 303 equipped with the welding gun moves above the part, and then the fourth motor 409 starts, driving the impact rod 426 to move through the first turntable 410. When the impact rod 426 contacts the push rod 427, the push rod 427 pushes the second slider 422 to slide along the inner wall of the mounting groove 420, and then the welding wire is fed into the welding wire guide tube 402 through the moving clamp 419 and the fixed clamp 418, so that the welding wire is heated by the welding gun, and the welding process is completed.

[0045] When the impact rod 426 disengages from the push rod 427, the second slider 422 contacts the first contact switch 421. At this time, the second electric cylinder 416 drives the movable clamping plate 419 away from the fixed clamping plate 418, thereby completing the disengagement of the movable clamping plate 419 from the welding wire. Then, under the action of the spring 424, the second slider 422 returns to its original position and contacts the second contact switch 425. Subsequently, the second electric cylinder 416 pushes the movable clamping plate 419 closer to the fixed clamping plate 418 and makes the movable clamping plate 419 contact the welding wire. When the impact rod 426 contacts the push rod 427 again, the above process is repeated, thereby continuously feeding the welding wire into the welding wire guide tube 402.

[0046] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0047] Appendix Figure 4 To the attached Figure 8 As shown, the air blowing assembly includes a mounting block 413 fixedly mounted on a fixed plate 415. A first piston rod 414 is fixedly mounted on the side of the mounting block 413 away from the fixed plate 415. A piston is fixedly mounted on the end of the first piston rod 414 away from the fixed plate 415. The piston is slidably mounted on the inner wall of the first air blowing pipe 403. The output end of the first air blowing pipe 403 faces the mounting plate 101.

[0048] When the second slider 422 moves, it drives the first piston rod 414 to move through the fixed plate 415. Then, the piston pump sends nitrogen into the first blow pipe 403, squeezes the nitrogen out of the first blow pipe 403 and sprays it onto the welding point, thereby protecting the welding point and preventing danger.

[0049] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0050] Appendix Figure 7 To the attached Figure 10 As shown, a second protective cover 501 is fixedly installed on the other side of the third moving frame 209. Inside the second protective cover 501 are a second air pipe 502, a spray pipe 503, a water tank 504 connected to the spray pipe 503, and a synchronous conveying assembly connected to the second air pipe 502 and the water tank 504. The water tank 504 is filled with cooling cutting fluid. A solenoid valve is installed at one end of the spray pipe 503 facing the mounting plate 101. An injection pipe 511 connected to the water tank 504 is installed on the upper part of the water tank 504. A piston 2 is slidably installed on the inner wall of the injection pipe 511. A piston 3 is slidably installed on the inner wall of the second air pipe 502. The synchronous conveying assembly includes a second piston rod 512 and a third piston rod 513. The second piston rod 512 is fixedly installed on the piston 2, and the third piston rod 513 is fixedly installed on the piston 3.

[0051] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0052] Appendix Figure 2 To the attached Figure 6 As shown, a rotating door is rotatably installed on the side of the first protective cover 401 and the second protective cover 501, and a lock is installed on each rotating door. The rotating door can be locked on the first protective cover 401 and the second protective cover 501 by means of the lock.

[0053] Before starting work, place the parts to be processed on the positioning fixture of the mounting plate 101 and fix the parts with the positioning fixture. Then, open the lock on the first protective cover 401 and rotate the rotating door on the first protective cover 401. Then, the welding wire wound on the first protective cover 401 is passed into the welding wire guide tube 402. After that, the rotating door is closed and locked with the lock.

[0054] As mentioned in the background section, this application proposes a CNC gantry-type drilling, grinding, and welding combined processing equipment.

[0055] Appendix Figure 7 To the attached Figure 10 As shown, a fixing rod 510 is fixedly installed between the second piston rod 512 and the third piston rod 513. A fifth motor 505 is fixedly installed on the side of the third moving frame 209. The fifth motor 505 is electrically connected to the solenoid valve. When the fifth motor 505 starts, the solenoid valve opens. When the fifth motor 505 stops working, the solenoid valve closes. A second turntable 506 is fixedly installed at the output end of the fifth motor 505. A connecting shaft 507 is fixedly installed on the side of the second turntable 506 away from the fifth motor 505. A connecting rod 508 is rotatably installed on the outer surface of the connecting shaft 507. A driving block 509 is rotatably installed at the end of the connecting rod 508 away from the second turntable 506. The driving block 509 is fixedly connected to the fixing rod 510.

[0056] When welding and milling are required, the chuck 303, equipped with a grinding disc and milling cutter, moves above the part. Then, the fifth motor 505 starts, and the solenoid valve opens. The fifth motor 505 drives the connecting rod 508 through the second turntable 506, which in turn drives the second piston rod 512 and the third piston rod 513 to slide along the inner wall of the injection pipe 511 and the second air blowing pipe 502. This causes the cooling cutting fluid in the water tank 504 to be sprayed onto the machining area through the spray pipe 503, preventing the grinding disc and milling cutter from overheating. At the same time, gas is sprayed onto the machining area through the second air blowing pipe 502, thereby blowing off the machining debris.

[0057] Working principle: (a) Before work, place the parts to be processed on the positioning fixture of the mounting plate 101 and fix the parts by the positioning fixture. Then, open the lock on the first protective cover 401 and rotate the rotating door on the first protective cover 401. Then, the welding wire wound on the first protective cover 401 is passed into the welding wire guide tube 402. After that, the rotating door is closed and locked by the lock.

[0058] (ii) Determine the required processing tools (e.g., welding gun, milling cutter, grinding disc) according to the processing technology. Then, the first motor 201, the second motor 204 and the third motor 207 are started. The first screw rod 202, the second screw rod 205 and the third screw rod 208 drive the third moving frame 209 to move, thereby moving the processing tools (e.g., welding gun, milling cutter, grinding disc) on the corresponding chuck 303 to the top of the part.

[0059] (III) When welding is required, the chuck 303 equipped with the welding gun moves above the part, and then the fourth motor 409 starts, driving the impact rod 426 to move through the first turntable 410. When the impact rod 426 contacts the push rod 427, the push rod 427 pushes the second slider 422 to slide along the inner wall of the mounting groove 420, and then feeds the welding wire into the welding wire guide tube 402 through the moving clamp 419 and the fixed clamp 418, thereby heating the welding wire through the welding gun and completing the welding process. When the impact rod 426 disengages from the push rod 427, the second slider... When the second electric cylinder 416 moves the movable clamping plate 419 away from the fixed clamping plate 418, it will disengage the movable clamping plate 419 from the welding wire. Then, under the action of the spring 424, the second slider 422 returns to its original position and contacts the second contacting switch 425. Subsequently, the second electric cylinder 416 pushes the movable clamping plate 419 closer to the fixed clamping plate 418 and moves the clamping plate 419 to contact the welding wire. When the impact rod 426 contacts the push rod 427 again, the above process is repeated, thereby continuously feeding the welding wire into the welding wire guide tube 402.

[0060] (iii) When the second slider 422 moves, it drives the first piston rod 414 to move through the fixed plate 415. Then, the nitrogen gas pumped into the first blow pipe 403 is squeezed out of the first blow pipe 403 and sprayed onto the welding point through the piston, thereby protecting the welding point and preventing danger from occurring.

[0061] (iv) When welding and milling are required, the chuck 303 equipped with the grinding disc and milling cutter moves above the part, and then the fifth motor 505 starts. At this time, the solenoid valve opens, and the fifth motor 505 drives the connecting rod 508 to move through the second turntable 506. Then, through the second piston rod 512 and the third piston rod 513, the pistons 2 and 3 slide along the inner wall of the injection pipe 511 and the second air pipe 502, thereby spraying the cooling cutting fluid in the water tank 504 onto the machining area through the spray pipe 503 to prevent the grinding disc and milling cutter from overheating. At the same time, the gas is sprayed onto the machining area through the second air pipe 502, thereby blowing off the machining debris.

[0062] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A CNC gantry-type drilling, grinding, and welding combined processing equipment, comprising a mounting plate (101), wherein the part to be processed is placed on the mounting plate (101), characterized in that, Mounting plate (101) is mounted with mounting bracket (102), mounting bracket (102) is mounted with a three-axis moving assembly located above mounting plate (101), and mounting plate (101) is also mounted with a third moving bracket (209) connected to the three-axis moving assembly. The third moving bracket (209) is mounted with three sets of lifting components and three chucks (303), and each chuck (303) is mounted with a drill bit, a grinding disc and a welding gun respectively. The third moving frame (209) is fixedly installed with a first protective cover (401) on one side. The first protective cover (401) is equipped with a welding wire guide tube (402), a first air blowing tube (403), a welding wire conveying assembly connected to the welding wire guide tube (402), and an air blowing assembly connected to the first air blowing tube (403). The third mobile frame (209) is fixedly installed on the other side of a second protective cover (501). The second protective cover (501) contains a second air pipe (502), a spray pipe (503), a water tank (504) connected to the spray pipe (503), and a synchronous conveying assembly connected to the second air pipe (502) and the water tank (504).

2. The CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 1, characterized in that, The lifting assembly includes a first electric cylinder (301), a mounting box (302) is fixedly installed on the telescopic end of the first electric cylinder (301), a chuck (303) is installed on the end of the mounting box (302) away from the first electric cylinder (301), a first protective cover (401) is adjacent to the mounting box (302) connected to the chuck (303) on which the welding gun is installed, a second protective cover (501) is adjacent to the mounting box (302) connected to the chuck (303) on which the drill bit is installed, and the mounting box (302) connected to the chuck (303) on which the grinding disc is installed is located in the middle.

3. The CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 1, characterized in that, The first protective cover (401) has a vertical groove (404) on its side. A first slider (405) is slidably installed on the inner wall of the vertical groove (404). The first slider (405) is fixedly connected to the mounting box (302). The first slider (405) is slidably installed on the side of the third moving frame (209). The welding wire feeding assembly includes a first turntable (410) rotatably installed on the side of the first slider (405). Welding wire is wound on the outer surface of the first turntable (410). A fourth motor (409) is slidably installed on the side of the third moving frame (209). The output end of the fourth motor (409) is fixedly connected to the first turntable (410). The inlet of the welding wire guide tube (402) is located below the first turntable (410), and the outlet of the welding wire guide tube (402) is located above the mounting plate (101).

4. The CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 3, characterized in that, The third movable frame (209) has an installation groove (420) on its side. A limit shaft (417) is slidably installed on the inner wall of the installation groove (420). A fixed clamping plate (418) is fixedly installed on the outer surface of the limit shaft (417). A movable clamping plate (419) is also slidably installed on the outer surface of the limit shaft (417). A fixed plate (415) is fixedly installed on the lower side of the fixed clamping plate (418) and is slidably connected to the movable clamping plate (419). A second electric cylinder (416) is fixedly installed on the fixed plate (415). The telescopic end of the second electric cylinder (416) is fixedly connected to the movable clamping plate (419). Both the fixed clamping plate (418) and the movable clamping plate (419) are located below the first turntable (410).

5. A CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 4, characterized in that, When the telescopic end of the second electric cylinder (416) is extended to its maximum length, the distance between the two opposite sides of the moving clamp (419) and the fixed clamp (418) is 0.8 to 0.9 times the diameter of the welding wire.

6. The CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 4, characterized in that, A push rod (427) is fixedly installed on the side of the movable clamping plate (419) away from the fixed clamping plate (418), and a strike rod (426) is fixedly installed on the side of the first turntable (410) away from the third movable frame (209).

7. A CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 6, characterized in that, The impact rod (426) can push the push rod (427) to move, thereby driving the limit shaft (417) to slide along the inner wall of the mounting groove (420). The first contact switch (421) and the second slider (422) are fixedly installed on the inner wall of the mounting groove (420). The first contact switch (421) and the second slider (422) are both electrically connected to the second electric cylinder (416).

8. A CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 5, characterized in that, The air blowing assembly includes a first piston rod (414) fixedly mounted on a fixed plate (415). A piston is fixedly mounted on one end of the first piston rod (414) away from the fixed plate (415). The piston is slidably mounted on the inner wall of the first air blowing pipe (403). The output end of the first air blowing pipe (403) faces the mounting plate (101).

9. A CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 3, characterized in that, An injection pipe (511) is installed on the upper part of the water tank (504) and communicates with it. A piston two is slidably installed on the inner wall of the injection pipe (511). A piston three is slidably installed on the inner wall of the second air pipe (502). The synchronous conveying assembly includes a second piston rod (512) and a third piston rod (513). The second piston rod (512) is fixedly installed on the piston two, and the third piston rod (513) is fixedly installed on the piston three. A fixing rod (510) is fixedly installed between the second piston rod (512) and the third piston rod (513).

10. A CNC gantry-type drilling, grinding, and welding combined processing equipment according to claim 9, characterized in that, The fifth motor (505) is fixedly installed on the side of the third moving frame (209). The output end of the fifth motor (505) is fixedly installed on the second turntable (506). A connecting rod (508) is rotatably installed on the side of the second turntable (506) away from the fifth motor (505). The end of the connecting rod (508) away from the second turntable (506) is rotatably connected to the fixed rod (510).

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