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CN-121972805-A - Laser processing device and method with curved surface part positioning mechanism

CN121972805ACN 121972805 ACN121972805 ACN 121972805ACN-121972805-A

Abstract

The invention relates to the technical field of laser processing, in particular to a laser processing device and a method with a curved surface part positioning mechanism, wherein a curved surface part is arranged below laser processing equipment, a track recognition module for recognizing tracks of a processing area of the laser processing equipment is arranged on one side of a welding frame body, curved surface positioning modules which are uniformly distributed are arranged above a positioning substrate, a curved surface part is arranged above the curved surface positioning modules, and a curved surface part cooling module is also arranged above the positioning substrate; the second controllable lifting unit drives the laminating hose to move upwards when the curved surface part is processed on the surface, the laminating hose is of a flexible structure, heat is taken away by cooling medium flowing in the laminating hose, rapid cooling and shaping of a welding area are realized, molten metal is shaped along a preset track, and the processing precision and shaping quality of the curved surface part are ensured.

Inventors

  • GAO SHAN
  • WANG ZONGSHEN
  • CUI XIAOLI
  • SHI WENQING

Assignees

  • 广东海洋大学

Dates

Publication Date
20260505
Application Date
20260324

Claims (8)

  1. 1. A laser processing device with a curved surface part positioning mechanism is characterized in that: Comprises a processing frame body (1), a processing platform (2), a welding frame body (3) and laser processing equipment (4); The top of the processing frame body (1) is fixedly connected with a processing platform (2) which is arranged flatly, a welding frame body (3) is fixedly connected above the processing platform (2), laser processing equipment (4) is installed at the bottom of the welding frame body (3), a curved surface part (11) is arranged below the laser processing equipment (4), a track recognition module (12) for carrying out track recognition on a processing area of the laser processing equipment (4) is installed on one side of the welding frame body (3), and a control module (13) is also installed on the other side of the welding frame body (3); An upper lifting mechanism (5) and a lower lifting mechanism (5) are arranged in the processing frame body (1), a longitudinal moving mechanism (6) is arranged above the upper lifting mechanism (5), a transverse moving mechanism (7) is arranged above the longitudinal moving mechanism (6), a positioning substrate (8) is arranged above the transverse moving mechanism (7), curved surface positioning modules (9) which are uniformly distributed are arranged above the positioning substrate (8), curved surface parts (11) are arranged above the curved surface positioning modules (9), and a curved surface part cooling module (10) is also arranged above the positioning substrate (8); The curved surface part cooling module (10) comprises a second controllable lifting unit (101) which is fixedly connected with the positioning substrate (8), the free end of the second controllable lifting unit (101) is fixedly connected with a laminating hose (102), two ends of the laminating hose (102) are communicated with a communicating pipe (104), the other end of the communicating pipe (104) on one side is communicated with a water tank (106), the other end of the communicating pipe (104) on the other side is connected with a water pump (105), and the outer side of the water pump (105) is fixedly connected with the water tank (106).
  2. 2. The laser processing device with the curved surface part positioning mechanism according to claim 1, wherein one side of the water tank (106) is communicated with a water supply pipe (107), and the other end of the water supply pipe (107) is connected with water supplementing equipment.
  3. 3. The laser processing device with the curved surface part positioning mechanism according to claim 1, wherein a plurality of pressure detection units (103) are fixedly connected to the top of the attaching hose (102), and the pressure detection units (103) are all located right above the second controllable lifting unit (101).
  4. 4. The laser processing device with the curved surface part positioning mechanism according to claim 1, wherein the attaching hose (102) is made of a flexible heat-conducting silica gel sheet, and the cross section of the attaching hose (102) is rectangular.
  5. 5. The laser processing device with the curved surface part positioning mechanism according to claim 1, wherein the curved surface positioning modules (9) are arranged in a plurality of ways, each curved surface positioning module (9) comprises a telescopic cylinder (901) fixedly connected with a positioning substrate (8), a first controllable lifting unit (902) is arranged in each telescopic cylinder (901), the bottom of each first controllable lifting unit (902) is fixedly connected with the positioning substrate (8), the top of each first controllable lifting unit (902) is fixedly connected with each telescopic cylinder (901), flexible connecting pieces (903) are fixedly connected to the top of each telescopic cylinder (901), and sealing rings (904) are fixedly connected to the top of each flexible connecting piece (903); The outside of first controllable lifting unit (902) is all fixedly connected with solid fixed ring (906), and the inside fixedly connected with intercommunication trachea (905) of solid fixed ring (906), the one end and the flexible connection piece (903) intercommunication of intercommunication trachea (905), the other end of intercommunication trachea (905) all communicates and has inflatable trachea (14), and the external vacuum pump equipment of the other end of inflatable trachea (14).
  6. 6. The laser machining device with the curved surface part positioning mechanism according to claim 5, wherein electromagnetic valves (907) are arranged on the outer sides of the communicating air pipes (905), the communicating air pipes (905) on the upper portion of the fixing ring (906) are arranged in a rigid structure, and the communicating air pipes (905) on the lower portion of the fixing ring (906) are arranged in a flexible structure.
  7. 7. The laser machining apparatus with the curved surface part positioning mechanism according to claim 5, wherein the sealing rings (904) are arranged in a ring shape, and the upper end surfaces of the sealing rings (904) are all arranged in an inclined manner.
  8. 8. A method of a laser machining apparatus having a curved part positioning mechanism according to any one of claims 1-7, wherein: The method comprises the following steps: placing a curved surface part (11) above a curved surface positioning module (9), and carrying out negative pressure adsorption on the curved surface part of the curved surface part (11) through a plurality of curved surface positioning modules (9); Step two, by starting the curved surface part cooling module (10), the attaching hose (102) of the curved surface part cooling module (10) is moved and is in close contact with one side of the curved surface part (11): Scanning the inner side of the curved surface part (11) through a track recognition module (12), planning a welding path, and controlling the up-down lifting mechanism (5), the longitudinal moving mechanism (6) and the transverse moving mechanism (7) to be matched through a control module (13) so that a welding area is always focused at one position; and fourthly, starting the curved surface part cooling module (10) to cool one side of the curved surface part (11) so as to ensure the rapid cooling and shaping of the molten metal.

Description

Laser processing device and method with curved surface part positioning mechanism Technical Field The invention relates to the technical field of laser processing, in particular to a laser processing device and method with a curved surface part positioning mechanism. Background The laser processing is an advanced manufacturing technology for realizing material removal, connection, modification or molding by utilizing the interaction of a high-energy-density laser beam and a material, has the core of non-contact photo-thermal/photochemical effect, has the advantages of high precision, high flexibility, small heat affected zone and the like, and is widely used in the field of part processing. However, in the processing process of parts, mainly planar parts are adopted, and when the surface of curved parts is heated and melted by adopting high-energy density light beams, the molten metal is displaced without cooling because of continuous processing, and uneven flow occurs, and particularly, the molten metal is easy to collect along the lower part of the curved surface and deviate from a preset forming position, so that the processing precision and the forming quality of the curved parts are seriously affected. Disclosure of Invention The invention aims to provide a laser processing device with a curved part positioning mechanism and a method thereof, which are used for solving the problems in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: as an alternative scheme of the laser processing device and method with the curved surface part positioning mechanism, the invention provides the laser processing device and method with the curved surface part positioning mechanism, which comprises a processing frame body, a processing platform, a welding frame body and laser processing equipment; The top of the processing frame body is fixedly connected with a processing platform which is arranged flatly, the upper part of the processing platform is fixedly connected with a welding frame body, the bottom of the welding frame body is provided with laser processing equipment, a curved surface part is arranged below the laser processing equipment, one side of the welding frame body is provided with a track recognition module for recognizing the track of the processing area of the laser processing equipment, and the other side of the welding frame body is also provided with a control module; The processing frame body is internally provided with an up-down lifting mechanism, a longitudinal moving mechanism is arranged above the up-down lifting mechanism, a transverse moving mechanism is arranged above the longitudinal moving mechanism, a positioning substrate is arranged above the transverse moving mechanism, curved surface positioning modules which are uniformly distributed are arranged above the positioning substrate, curved surface parts are arranged above the curved surface positioning modules, and a curved surface part cooling module is also arranged above the positioning substrate; The curved surface part cooling module includes the controllable elevating unit of second that is fixed connection with the location base plate, and the free end fixedly connected with laminating hose of the controllable elevating unit of second, the both ends of laminating hose all communicate communicating pipe, and the other end and the water tank intercommunication of communicating pipe of one side, the other end of communicating pipe of opposite side are connected with the water pump, and the water pump outside is fixed connection with the water tank. As an alternative scheme of the laser processing device with the curved surface part positioning mechanism and the laser processing method, one side of the water tank is communicated with a water supply pipe, and the other end of the water supply pipe is connected with water supplementing equipment. As an alternative scheme of the laser processing device with the curved surface part positioning mechanism and the laser processing method with the curved surface part positioning mechanism, the top of the attaching hose is fixedly connected with a plurality of pressure detection units, and the pressure detection units are all positioned right above the second controllable lifting unit. As an alternative scheme of the laser processing device with the curved surface part positioning mechanism and the laser processing method, the bonding hose is made of a flexible heat-conducting silica gel sheet, and the section of the bonding hose is rectangular. As an alternative scheme of the laser processing device with the curved surface part positioning mechanism and the laser processing method, the laser processing device with the curved surface part positioning mechanism comprises the following steps: placing a curved surface part above the curved surface positioning modules, and carrying out negative pressure adsorption on the curv