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CN-118060402-B - Aviation stainless steel double-clamping pipe fitting machining device

CN118060402BCN 118060402 BCN118060402 BCN 118060402BCN-118060402-B

Abstract

The invention discloses a machining device for an aviation stainless steel double-clamping pipe fitting, and relates to the technical field of double-clamping pipe fitting machining. Including supporting recognition mechanism, support recognition mechanism outer wall and install can around supporting recognition mechanism pivoted rotary mechanism, rotary mechanism includes the second arm, shaping mechanism is installed to the expansion end of second arm, shaping mechanism internally mounted has forming mechanism, shaping mechanism is used for forming the shaping cavity when stainless steel double cassette presses the pipe fitting shaping. According to the invention, when facing stainless steel pipe blanks with different shapes, only the end positions are required to be processed without die sinking, so that the required size of the pipe blank can be pre-processed before the clamping joint is processed, then the clamping joint is processed, the influence of secondary processing on the precision of the clamping joint is avoided, and the application range of the whole processing equipment is increased by adopting the independent end processing and forming mode.

Inventors

  • DONG LIBO
  • LIU YUJIANG
  • MA YUDONG
  • LIU YUKUN

Assignees

  • 山东舜博金属制品有限公司

Dates

Publication Date
20260508
Application Date
20240418

Claims (8)

  1. 1. The device for machining the aviation stainless steel double-clamping pipe fitting comprises a support identification mechanism (1) and is characterized in that a rotating mechanism (2) capable of rotating around the support identification mechanism (1) is arranged on the outer wall of the support identification mechanism (1), the rotating mechanism (2) comprises a second mechanical arm (205), a shaping mechanism (3) is arranged at the movable end of the second mechanical arm (205), a shaping mechanism (4) is arranged in the shaping mechanism (3), the shaping mechanism (3) is used for forming a shaping cavity when a stainless steel pipe fitting is formed, the shaping mechanism (4) is used for providing internal shaping pressure when the stainless steel pipe fitting is formed, and the rotating mechanism (2) comprises a water supply assembly used for supplying water to the shaping mechanism (4); The shaping mechanism (3) comprises a support (301), wherein the support (301) is of a C-shaped structure, a clamping groove (302) is formed in the bottom end of the support (301), a detachable lower die (303) is installed in the clamping groove (302), a hydraulic cylinder (304) is installed at the top of the support (301), a clamping frame (305) is fixedly connected after a piston end at the bottom of the hydraulic cylinder (304) penetrates through the top of the support (301), a detachable upper die (306) is installed in the clamping frame (305), cavities (307) are formed in the inner walls of the lower die (303) and the upper die (306), a positioning hole (308) is formed in the top of the lower die (303), a positioning column (309) matched with the positioning hole (308) is formed in the bottom of the upper die (306), an L-shaped rotating frame (310) is rotatably connected to the end face of the top of the support (301), an auxiliary frame (311) is rotatably connected to the other end of the L-shaped rotating frame, a heating coil (312) for preheating a stainless steel pipe piece is arranged at the bottom of the auxiliary frame (311), and one end of the support (301) is provided with a second motor (313) for driving the L-shaped rotating frame (310); The support identification mechanism (1) comprises a workbench (101), an electric turntable (105) is arranged at the center of the top of the workbench (101), and binocular cameras (103) are also arranged at the positions, around the electric turntable (105), of the top of the workbench (101); the forming mechanism (4) comprises a forming rod (401), one end of the forming rod (401) is sealed, the other end of the forming rod is provided with a water filling port (403), a water outlet (404) is formed in the middle of the outer wall of the forming rod (401), an expansion membrane (402) covering the water outlet (404) is connected to the outer wall of the forming rod (401), round grooves (408) are formed in the outer wall, close to the closed end, of the forming rod (401), circular grooves (408) are formed in the inner wall, friction pieces are arranged at positions, located between the closed end and the round grooves (408), of the forming rod (401), inner grooves (411) are formed, second springs (418) for pulling the friction pieces to enter the round grooves (408) are arranged in the inner grooves (411), pushing blocks (407) are arranged on the inner walls of the forming rod (401) in a sliding mode, one ends of the pushing blocks (407) are abutted to the friction pieces and used for pushing the friction pieces to move towards the outer portions of the round grooves (408), the pushing blocks (407) are connected with the outer portions of the forming rod (401) through first springs (412), the pushing blocks (407) are far away from the first ends of the driving components, and the driving components are arranged on the pushing blocks (407) and are arranged.
  2. 2. The aviation stainless steel double-clamping pipe fitting machining device is characterized in that the piston assembly comprises a rubber pushing plate (405), a connecting rod (406) is fixedly connected between the rubber pushing plate (405) and a pushing block (407), two cavity rings (415) forming a sealing cavity are fixedly connected to the inner wall of a forming rod (401) at positions between the rubber pushing plate (405) and the pushing block (407), and a sealing ring (416) is fixedly connected to the outer wall of the connecting rod (406) at the sealing cavity.
  3. 3. The device for machining the aviation stainless steel double-clamping pipe fitting is characterized in that a fixed rod (413) for improving sliding stability of a pushing block (407) is fixedly connected to the inner wall of the closed end of the forming rod (401), and slots (414) matched with the fixed rod (413) are formed in the pushing block (407) and the piston assembly.
  4. 4. The device for machining the aviation stainless steel double-clamping pipe fitting is characterized in that the friction piece comprises a sliding sleeve (409) which is arranged in a circular groove (408) in a sliding mode, a replaceable friction head (410) is arranged in the sliding sleeve (409) in a sliding mode, stability of a forming mechanism (4) is increased to limit deformation direction of an expansion membrane (402) when the friction head (410) is abutted against the inner wall of the stainless steel pipe fitting, an auxiliary plate (417) which is matched with an inner notch (411) is fixedly connected to the outer wall of the sliding sleeve (409), and the auxiliary plate (417) is connected with a second spring (418).
  5. 5. The aviation stainless steel double-clamping pipe fitting machining device is characterized in that the workbench (101) is cylindrical, a first sliding groove (109), a toothed ring (110), a second sliding groove (111) and a third sliding groove (112) are respectively formed in the outer wall of the workbench (101) from top to bottom, the first sliding groove (109), the toothed ring (110), the second sliding groove (111) and the third sliding groove (112) are matched with the rotating mechanism (2), at least one first mechanical arm (102) is mounted at the periphery of the workbench (101) located on the electric turntable (105), a mechanical claw (104) is mounted at the movable end of the first mechanical arm (102), at least two air bags (107) are mounted at the clamping jaw of the mechanical claw (104), and the air bags (107) are inflated and deflated through air pipes (108).
  6. 6. The device for machining the aviation stainless steel double-clamping pipe fitting according to claim 5, wherein the rotating mechanism (2) comprises a C-shaped sliding frame (201), two ends of the sliding frame (201) are fixedly connected with two groups of first lug plates (208) respectively, a first parallel pulley (209) is arranged at the top of the first lug plates (208), a vertical pulley (210) is arranged at the bottom of the first lug plates (208), the first parallel pulley (209) and the vertical pulley (210) on the two groups of sliding frames (201) are respectively matched with the first sliding groove (109) and the second sliding groove (111), the water supply assembly comprises a water tank (202), the water tank (202) is arranged on one side, far away from the first lug plates (208), one end of the water tank (202) is fixedly connected with a water delivery hose (203), the end of the water delivery hose (203) close to a bracket (301) is fixedly connected with a pressurizing pump (204), the pressurizing pump (204) is matched with a water injection port (403), a supporting frame (211) is fixedly connected with the bottom of the water tank (202), the bottom of the supporting frame (211) is fixedly connected with a motor (211), the bottom of the second lug plates (212) is fixedly connected with the bottom of the second parallel pulley (212), the second parallel pulley (213) is arranged at the bottom of the second parallel pulley (213), the output end at the top of the first motor (206) penetrates through the bottom of the sliding frame (201) and is fixedly connected with a gear (207), and the gear (207) is located in the hollow part of the C-shaped structure of the sliding frame (201) and is matched with the toothed ring (110) to drive the whole rotating mechanism (2) to rotate.
  7. 7. The device for machining the aviation stainless steel double-clamping pipe fitting is characterized in that a control panel (106) is arranged on the side wall of the workbench (101), the binocular camera (103), the first mechanical arm (102), the electric rotary table (105), the rotating mechanism (2), the shaping mechanism (3) and the shaping mechanism (4) are respectively and electrically connected with the control panel (106), workpieces placed on the electric rotary table (105) are automatically identified by means of an identification machining method, workpiece machining requirements are obtained, the first mechanical arm (102) is controlled to grasp the workpieces, the end of the workpieces is surrounded by the positioning control shaping mechanism (3) of the rotating mechanism (2), and the internal shaping mechanism (4) is used for pressing to finish the shaping of the workpieces.
  8. 8. The device for machining the aviation stainless steel double-clamping pipe fitting according to claim 7, wherein the identification machining method comprises the following steps: s1, acquiring a workpiece image, and acquiring the workpiece image and the spatial position of the workpiece through a binocular camera (103); S2, feature extraction, namely creating a workpiece information base, extracting features of a workpiece image and finding corresponding workpiece information in the workpiece information base; S3, processing information is obtained, processing information of workpiece information is obtained, basic processing information is correspondingly arranged on each workpiece in the workpiece information base, and the processing information is created manually or based on the basic processing information; S4, creating a machining command, namely creating an execution flow of the first mechanical arm (102), the electric turntable (105), the rotating mechanism (2), the shaping mechanism (3) and the shaping mechanism (4) according to machining information, and creating the machining command based on the execution flow; and S5, machining execution, namely machining the workpiece according to machining commands by the first mechanical arm (102), the electric turntable (105), the rotating mechanism (2), the shaping mechanism (3) and the forming mechanism (4) to finish production.

Description

Aviation stainless steel double-clamping pipe fitting machining device Technical Field The invention relates to the technical field of double-clamping pipe fitting machining, in particular to an aviation stainless steel double-clamping pipe fitting machining device. Background The double-clamping type connecting structure is simple and stable, has excellent drawing resistance and sealing performance, is widely applied to the aviation field, and mainly comprises the steps of cutting, forming, brightening, solid solution and polishing of stainless steel materials, wherein in a forming link, the main stream processing technology is internal high-pressure water expansion forming or stamping forming. The internal high-pressure forming machine for processing the clamping and pressing type pipe fittings disclosed in the patent publication No. CN107866459A changes the traditional arrangement mode of the side cylinders through the internal high-pressure forming machine, and improves the production quantity of the internal clamping and pressing type pipe fittings in each working cycle and the universality of the internal clamping and pressing type pipe fittings capable of being produced on the premise of not increasing the volume of equipment; and as for the one-step forming device for the clamping and pressing pipe fitting, disclosed in the patent publication No. CN114603014A, the clamping and pressing pipe fitting is fixed by arranging the upper clamping block, the lower clamping block and the locking assembly, so that manual fixing is not needed, and the processing efficiency is improved. The device and the like are all used for finishing the processing of the whole standard straight-through clamping and pressing pipe by adopting a mode of similar die cavity and forming rod compression forming, but the application range of the straight-through double clamping and pressing pipe in the actual use process is smaller, the straight-through double clamping and pressing pipe needs to be reprocessed and used, the reprocessing can sometimes lead the deformation of the clamping and pressing position of the pipe fitting to influence the later sealing performance, the influence of the reprocessing on the later safe use in the aviation field is extremely large, the clamping and pressing processing of a multi-way pipe with a nonstandard shape is needed, the sizes of the clamping and pressing joints are also different, and the traditional mode needs to have larger manufacturing cost and lower benefit for specially designing the steel die aiming at various situations. Disclosure of Invention The invention aims to provide an aviation stainless steel double-clamping pipe fitting machining device which aims to solve the problems in the background technology. The technical scheme is that the processing device for the aviation stainless steel double-clamping pipe fitting comprises a support identification mechanism, wherein a rotating mechanism capable of rotating around the support identification mechanism is arranged on the outer wall of the support identification mechanism, the rotating mechanism comprises a second mechanical arm, a shaping mechanism is arranged at the movable end of the second mechanical arm, a shaping mechanism is arranged in the shaping mechanism and is used for forming a shaping cavity when the stainless steel double-clamping pipe fitting is shaped, the shaping mechanism is used for providing internal shaping pressure when the stainless steel double-clamping pipe fitting is shaped, and the rotating mechanism comprises a water supply assembly used for supplying water to the shaping mechanism; The forming mechanism comprises a forming rod, one end of the forming rod is sealed, the other end of the forming rod is provided with a water filling port, the middle of the outer wall of the forming rod is provided with a water outlet, the outer wall of the forming rod, which is close to the closed end, is connected with an expansion membrane covering the water outlet, circular grooves are formed in the circumferential equidistance, friction pieces are arranged in the circular grooves in a sliding mode, inner grooves are formed in the positions, located between the closed end and the circular grooves, of the inner walls of the forming rod, second springs for pulling the friction pieces to enter the circular grooves are arranged in the inner grooves, pushing blocks are arranged in the inner grooves in a sliding mode, one ends of the pushing blocks are abutted to the friction pieces and used for pushing the friction pieces to move towards the outer portions of the circular grooves, the pushing blocks are connected with the closed ends of the forming rod through first springs, and one ends, which are far away from the first springs, of the pushing blocks are provided with piston assemblies for driving the pushing blocks to move. As a further preferable mode of the technical scheme, the piston assembly comprises a rubber push