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CN-121988922-A - Laser welding device for honeycomb panel processing

CN121988922ACN 121988922 ACN121988922 ACN 121988922ACN-121988922-A

Abstract

The invention discloses a laser welding device for honeycomb panel processing, which relates to the technical field of laser welding and aims at the problems that heat is easy to be quickly conducted and lost from a welding line area through a honeycomb core during welding, so that the temperature of a molten pool is reduced too fast and the fluidity of the molten pool and the forming quality of the welding line are affected. The invention can preheat the honeycomb plate by utilizing the residual heat of the cooling gas generated during the working of the PTC heater and the laser welding module and the hot air in the installation frame, thereby avoiding the excessively rapid temperature reduction of the honeycomb plate and improving the flowability of a molten pool and the forming quality of a welding seam.

Inventors

  • ZHANG SHUAI

Assignees

  • 广州市盛航船舶科技有限公司

Dates

Publication Date
20260508
Application Date
20260401

Claims (9)

  1. 1. The laser welding device for honeycomb panel processing comprises a bottom plate (1) and two first linear motors (3) which are respectively connected to the outer wall of the top of the bottom plate (1) through bolts, and is characterized in that a preheating mechanism (2) is arranged in the center of the top of the bottom plate (1), the preheating mechanism (2) comprises a mounting frame (201) with a mounting groove at the top, a supporting plate (202) which is connected into the mounting groove through bolts, a plurality of PTC heaters (203) which are respectively connected to the outer wall of the bottom of the supporting plate (202) through bolts, and a plurality of partition plates (205) which are respectively welded to the outer wall of the bottom of the supporting plate (202); An adjusting mechanism (4) is arranged above the bottom plate (1), and the adjusting mechanism (4) comprises a second linear motor (403); The mounting assembly (5) is arranged on the outer wall of the top of the sliding block of the second linear motor (403), and the mounting assembly (5) comprises a mounting plate (501) connected to the outer wall of the top of the sliding block of the second linear motor (403) through bolts and a mounting block (502) welded on the outer wall of one side of the mounting plate (501); the laser welding device is characterized in that a laser generating assembly (6) is arranged on the mounting block (502), and the laser generating assembly (6) comprises a laser welding module (601) connected to one side inner wall of the mounting block (502) through bolts, a cooling gas input joint (602) penetrating through and screwed on the inner wall of the bottom of the laser welding module (601) and a cooling gas output joint (604) penetrating through and screwed on the inner wall of the top of the laser welding module (601); A heat insulation assembly (7) is arranged above the supporting plate (202), and the heat insulation assembly (7) comprises two servo cylinders (701) which are respectively connected to the inner wall of the top of the mounting block (502) through bolts, a heat insulation cover (703) and a special laser window sheet (704) which penetrates through and is embedded in the inner wall of the top of the heat insulation cover (703); The laser welding module (601) is equipped with heat exchange assembly (8) on one side, heat exchange assembly (8) are including protection gas conveyer pipe (801), cup joint thermal-insulated section of thick bamboo (802) on protection gas conveyer pipe (801) outer wall, spiral guide vane (803) on thermal-insulated section of thick bamboo (802) inner wall, run through and weld cooling gas conveyer pipe (805) on thermal-insulated section of thick bamboo (802) upper portion inner wall and run through and weld waste heat gas conveyer pipe (806) on thermal-insulated section of thick bamboo (802) are located cooling gas conveyer pipe (805) upper portion inner wall.
  2. 2. The laser welding device for machining the honeycomb plates according to claim 1, wherein the mounting frame (201) is connected to the top outer wall of the bottom plate (1) through bolts, two baffles (204) are welded on the top inner wall of the mounting frame (201), a plurality of ventilation holes are formed in the outer walls of the two baffles (204), a plurality of air inlets are formed in the outer wall of one side of the mounting frame (201), and an air outlet is formed in the outer wall of the other side of the mounting frame (201).
  3. 3. The laser welding device for machining the honeycomb panel according to claim 1, wherein the top outer walls of the sliding blocks of the two first linear motors (403) are respectively connected with the supporting columns (401) through bolts, a connecting plate (402) is arranged above the base plate (1), the connecting plates (402) are respectively connected to the top outer walls of the two supporting columns (401) through bolts, and the second linear motors (403) are connected to the top outer walls of the connecting plates (402) through bolts.
  4. 4. The laser welding device for machining a honeycomb panel according to claim 1, wherein two reinforcing plates are connected to the outer wall of the top of the mounting plate (501) through bolts, and are connected to the outer wall of one side of the mounting block (502) through bolts, and two stabilizing plates are connected to the inner wall of the mounting block (502) through bolts.
  5. 5. The laser welding device for machining a honeycomb panel according to claim 1, wherein a cooling gas input pipe (603) is inserted into an outer wall of one end of the cooling gas input joint (602), and one end of the cooling gas input pipe (603) penetrates and is inserted into an outer wall of one side of the mounting block (502).
  6. 6. The laser welding device for machining the honeycomb panel according to claim 1, wherein a connecting block (702) is arranged below the mounting block (502), the connecting block (702) is connected to outer walls of bottom ends of piston rods of the two servo cylinders (701) through bolts, and the heat shield (703) is connected to outer walls of bottoms of the connecting block (702) through bolts.
  7. 7. The laser welding device for processing the honeycomb panel according to claim 1, wherein an exhaust pipe is fixedly arranged on the inner wall of one side of the lower part of the heat insulation cylinder (802), a cylinder cover (804) is screwed on the outer wall of the upper part of the heat insulation cylinder (802), and the cylinder cover (804) is sleeved on the outer wall of the protective gas conveying pipe (801) through a sealing ring.
  8. 8. The laser welding device for processing a honeycomb panel according to claim 1, wherein a fixing member (9) is connected to an outer wall of one side of the laser welding module (601) by bolts, and the heat insulating cylinder (802) is sleeved in the fixing member (9).
  9. 9. The laser welding device for machining the honeycomb panel according to claim 1, wherein a waste heat gas output joint penetrates through and is screwed on one side inner wall of the mounting frame (201), a recovery pipe (10) is inserted on the outer wall of one end of the waste heat gas output joint, and the recovery pipe (10) is connected to the outer wall of one end of the waste heat gas conveying pipe (806) through a pipe joint.

Description

Laser welding device for honeycomb panel processing Technical Field The invention relates to the technical field of laser welding, in particular to a laser welding device for honeycomb panel processing. Background Laser welding is a highly efficient and precise welding method that uses a laser beam of high energy density as a heat source. Laser welding is one of the important aspects of laser material processing technology application, the welding process belongs to heat conduction, namely laser radiation heats the surface of a workpiece, surface heat is diffused to the inside through heat conduction, the workpiece is melted to form a specific molten pool by controlling parameters such as the width, energy, peak power and repetition frequency of laser pulses, the laser welding machine consists of an optical oscillator and media placed between mirrors at two ends of the oscillator cavity, when the media are excited to a high energy state, in-phase light waves are generated, and reflected back and forth between the mirrors at two ends, a photoelectric tandem effect is formed, the light waves are amplified, and enough energy is obtained to start emitting laser, the laser can also be interpreted as a device for converting original energy such as electric energy, chemical energy, thermal energy or nuclear energy into electromagnetic radiation beams with certain specific light frequencies (ultraviolet light, visible light or infrared light), the conversion form is easy to be performed in certain solid, liquid or gaseous media, when the media are excited in atomic or molecular form, light beams with almost the same phase and almost single wavelength are generated, the light beams-laser have very small difference angles due to the same phase and single wavelength, and the functions of heat transfer and heat concentration can be realized before the welding is provided for a high-cutting distance. The honeycomb board is a composite board made by bonding two thinner panels on two sides of a honeycomb core material, namely a honeycomb sandwich structure, the core material comprises aluminum honeycomb, aramid paper honeycomb and other materials, the panel material comprises aluminum alloy, carbon fiber composite materials and the like, and the panel material can be divided into a metal honeycomb board, a plastic honeycomb board and a paper honeycomb board according to the materials, has the characteristics of light weight, high strength, heat insulation, sound insulation and the like, and in addition, the panel board has an array structure formed by welding a large number of cut-off waveguides and has an electromagnetic wave shielding function. The honeycomb plate has wide application in the fields of aerospace, rail traffic, building decoration and the like due to the characteristics of light weight and high strength, the porous structure of the honeycomb plate leads to the heat conduction performance of the honeycomb plate to have directivity in the laser welding processing process of the honeycomb plate, and heat is easily conducted and lost from a welding line area through a honeycomb core during welding, so that the temperature of a molten pool is reduced too quickly, and the flowability of the molten pool and the forming quality of the welding line are influenced. Disclosure of Invention The invention provides a laser welding device for honeycomb panel processing, which solves the problems that heat is easy to be quickly conducted and lost from a welding line area through a honeycomb core when the honeycomb panel laser welding device in the prior art is used for welding, so that the temperature of a molten pool is reduced too quickly, and the flowability of the molten pool and the forming quality of the welding line are influenced. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a honeycomb panel processing is with laser welding device, includes bottom plate and two first linear motor that pass through bolted connection respectively on bottom plate top outer wall, bottom plate top center department is equipped with preheating mechanism, preheating mechanism includes that the top is opened there is the installing frame of mounting groove, through bolted connection in the installing groove, a plurality of PTC heater and a plurality of that pass through bolted connection respectively on bottom of the support plate outer wall weld the baffle on bottom of the support plate outer wall respectively, the bottom plate top is equipped with adjustment mechanism, adjustment mechanism includes the second linear motor, be equipped with the installation component on the second linear motor slider top outer wall, the installation component includes the mounting panel through bolted connection on second linear motor slider top outer wall and welds the installation piece on the outer wall on one side of the mounting panel, be equipped with laser generati