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CN-122007617-A - Laser welding device and welding method for door and window frames of heat insulation bridge cut-off of motor home

CN122007617ACN 122007617 ACN122007617 ACN 122007617ACN-122007617-A

Abstract

The invention relates to the technical field of bridge-cutoff frame welding, in particular to a laser welding device for a heat-insulating bridge-cutoff door window frame of a motor home, which comprises a main body plate, wherein two symmetrically arranged first limiting grooves are formed in the upper end of the main body plate, first motors are symmetrically connected to the side surfaces of the main body plate, first threaded rods are respectively fixedly connected to driving shaft ends of the two first motors, a polishing and welding mechanism and a clamping mechanism are respectively arranged in the two first limiting grooves, the polishing and welding mechanism comprises a first limiting block which is arranged in the first limiting grooves in a sliding manner, the first limiting block is matched with the first threaded rods, a first electric telescopic rod is arranged at the upper end of the first limiting block, an inflating and positioning mechanism for inflating and limiting a bridge-cutoff aluminum plate is arranged at the upper end of the main body plate, and a fifth motor rotates according to the radian of the aluminum plate, so that aluminum plates with different radians can be accurately clamped between a second supporting plate and the first supporting plate, and aluminum plates are clamped.

Inventors

  • ZOU JIXIN
  • LI YUSHENG

Assignees

  • 龙口市永安车窗有限公司

Dates

Publication Date
20260512
Application Date
20260401

Claims (10)

  1. 1. The utility model provides a car as a house heat-insulating bridge cut-off door and window frame's laser welding device, includes main part board (1), its characterized in that, two first spacing groove (12) that the symmetry set up are seted up to the upper end of main part board (1), the side symmetry of main part board (1) is connected with first motor (11), two the drive shaft end of first motor (11) is first threaded rod (13) fixedly connected with respectively, two be provided with respectively in first spacing groove (12) grinding welding mechanism (2) and fixture (3), grinding welding mechanism (2) are including sliding first stopper (21) of setting in first spacing groove (12), first stopper (21) and first threaded rod (13) cooperation sets up, the upper end of first stopper (21) is provided with first electric telescopic handle (22), the flexible tip fixedly connected with first fixed body (23) of first electric telescopic handle (22), first cavity (24) have been seted up to the upper end of first fixed body (23), first fixed body (23) are provided with first cavity (24) respectively in first spacing groove (12), first motor (23) are connected with first threaded rod (25) in first cavity (25) and second threaded rod (25) are fixed connection, the upper end of first motor (25) is provided with the air inflation bridge (25).
  2. 2. The laser welding device for the door and window frame of the heat insulation bridge cutoff window of the motor home according to claim 1, wherein an annular groove (26) is formed in the upper end of the first fixing body (23), a limiting ring (27) which is in running fit with the annular groove (26) is fixedly connected to the lower end of the rotating plate (28), first empty slots (210) are symmetrically formed in the upper end of the rotating plate (28), a third motor (211) is fixedly connected to the inner portion of the first empty slots (210), a second electric telescopic rod (212) is fixedly connected to the driving shaft end of the third motor (211), and a polishing rod (213) is fixedly connected to the telescopic end portion of the second electric telescopic rod (212).
  3. 3. The laser welding device for the door and window frame of the heat insulation bridge cutoff door and window of the motor home as claimed in claim 2, wherein the rotating plate (28) is fixedly connected with a fourth motor (214) in the other first empty groove (210), a transmission shaft end of the fourth motor (214) is fixedly connected with a third electric telescopic rod (215), a telescopic end part of the third electric telescopic rod (215) is fixedly connected with a laser welding head (216), a fixed end of the third electric telescopic rod (215) is connected with a flexible telescopic cover (217), the upper end of the rotating plate (28) is fixedly connected with a first air pump (29), the side surface of the flexible telescopic cover (217) is communicated with the first air pump (29) through a first air pipe, and an air outlet end of the first air pump (29) is communicated with the recovery tank.
  4. 4. The laser welding device for the door and window frame of the heat insulation bridge cutoff window of the motor home according to claim 1, wherein the clamping mechanism (3) comprises a plurality of second limiting blocks (311) which are arranged in the first limiting grooves (12) in a sliding mode, the upper ends of the second limiting blocks (311) are fixedly connected with fourth electric telescopic rods (31), telescopic end portions of the fourth electric telescopic rods (31) are fixedly connected with fifth electric telescopic rods (32), telescopic end portions of the fifth electric telescopic rods (32) are fixedly connected with fifth motors (37), transmission shaft ends of the fifth motors (37) are fixedly connected with first supporting plates (38), lateral faces of the first supporting plates (38) are fixedly connected with seventh electric telescopic rods (39), telescopic end portions of the seventh electric telescopic rods (39) are fixedly connected with second supporting plates (310), and video detectors are arranged at lower ends of the first supporting plates (38).
  5. 5. The laser welding device for the door and window frame of the heat insulation bridge cutoff window of the motor home according to claim 4, wherein a through hole (312) is formed in the end portion of the second limiting block (311) in a penetrating mode, a matching ring (33) is arranged in the through hole (312), second empty slots (34) are formed in the side faces of the matching ring (33) at equal angles, a sixth electric telescopic rod (35) is fixedly connected to the matching ring (33) in the second empty slots (34), jacking blocks (36) are fixedly connected to the telescopic end portions of the sixth electric telescopic rods (35) respectively, and the inner side faces of the matching ring (33) are matched with the first threaded rod (13).
  6. 6. The laser welding device for the door and window frame of the heat insulation bridge cut-off of the motor home as claimed in claim 1, wherein the inflatable positioning mechanism (4) comprises two fourth limiting grooves (417) symmetrically formed in the upper end of the main body plate (1), a seventh motor is fixedly connected to the side face of the main body plate (1), a third threaded rod (418) is fixedly connected to the driving shaft end of the seventh motor in the fourth limiting groove (417), guide bodies are arranged on the side face of the two third threaded rods (418) through threaded fit, the side faces of the two guide bodies are in sliding fit with the fourth limiting groove (417), an eighth electric telescopic rod (45) is fixedly connected to the upper end of the guide body, a second fixing body (46) is fixedly connected to the telescopic end of the eighth electric telescopic rod (45), a third limiting groove (47) is formed in the lower end of the second fixing body (46), and a third limiting block (49) is connected to the second fixing body (46) in a sliding mode in the third limiting groove (47).
  7. 7. The laser welding device for the door and window frames of the heat insulation bridge cut-off of the motor home as claimed in claim 6, wherein a sixth motor (44) is fixedly connected to the side face of the second fixing body (46), a second threaded rod (48) is fixedly connected to the driving shaft end of the sixth motor (44) in a third limit groove (47), and the side face of the second threaded rod (48) and the third limit block (49) are arranged in a threaded fit mode.
  8. 8. The laser welding device for the door and window frames of the heat insulation bridge cutoff window of the motor home according to claim 7, wherein the lower end of the third limiting block (49) is fixedly connected with a connecting column (415), the lower end of the connecting column (415) is fixedly connected with a shell (410), the lower end of the shell (410) is provided with a second cavity (411), the upper end of the shell (410) is provided with an air inlet (412), the upper end of the second fixing body (46) is fixedly connected with an inert gas tank (413), the upper end of the inert gas tank (413) is provided with a second air pump (414) communicated with the inert gas tank, and the air inlet (412) is communicated with an air outlet of the second air pump (414) through a second air pipe.
  9. 9. The laser welding device for the door and window frames of the heat insulation bridge cutoff doors and windows of the motor home as claimed in claim 6, wherein the upper end of the main body plate (1) is provided with a guide groove (41), the side surface of the main body plate (1) symmetrically provided with a placement groove (416), the main body plate (1) is fixedly connected with a multi-stage electric telescopic rod (42) in the placement groove (416), and telescopic ends of the multi-stage electric telescopic rod (42) are respectively fixedly connected with a supporting body (43).
  10. 10. A laser welding method for a door and window frame of a heat insulation bridge cut-off of a motor home, which is applied to the laser welding device for the door and window frame of the heat insulation bridge cut-off of the motor home as claimed in any one of claims 1 to 9, and is characterized by comprising the following steps: S1, respectively placing the end parts of an aluminum alloy door and window frame in supporting bodies (43) of telescopic end parts of multistage electric telescopic rods (42), then placing a group of bridge-cut-off aluminum plates on the inner side surfaces of the frame, simultaneously starting a first motor (11), driving a first threaded rod (13) to rotate by the first motor (11), starting a matching ring (33) in a through hole (312) of the end part of a second limiting block (311), and enabling a plurality of sixth electric telescopic rods (35) on the side surfaces of the matching ring (33) to stretch so as to drive a plurality of second limiting blocks (311) to respectively move to proper positions, and then enabling a fourth electric telescopic rod (31) and a fifth electric telescopic rod (32) to stretch, wherein a video detector at the lower end of a first supporting plate (38) drives the telescopic end parts of the fifth electric telescopic rods (32) to move to the upper parts of the bridge-cut-off aluminum plates; S2, a second motor (25) drives a rotating plate (28) to rotate, so that a polishing rod (213) rotates to a position close to an aluminum plate, then a first electric telescopic rod (22) and a second electric telescopic rod (212) stretch, so that the polishing rod (213) moves to a position contacted with the aluminum plate, then a third motor (211) is started, the third motor (211) drives the second electric telescopic rod (212) to rotate, then the other first motor (11) is started, the first motor (11) drives a first threaded rod (13) to rotate, and the first threaded rod (13) is matched with the first limiting block (21) to reciprocate; S3, a sixth motor (44) drives a second threaded rod (48) to rotate, the second threaded rod (48) is matched with a third limiting block (49) to move to the position which is the same as that of the rotating plate (28), then two eighth electric telescopic rods (45) are contracted, the two eighth electric telescopic rods (45) drive a shell (410) at the lower end of a connecting column (415) to contact with the upper end of an aluminum plate, then a second air pump (414) is started, the second air pump (414) drives inert gas in an inert gas tank (413) to move into a second cavity (411) through a gas pipe, during laser welding, a fourth motor (214) drives a third electric telescopic rod (215) to rotate to an angle which is aligned with a welding line, then the third electric telescopic rod (215) stretches, the end part of the third electric telescopic rod (215) drives a flexible telescopic cover (217) to contact with the welding line, the flexible telescopic cover (217) is of a flexible structure, and during welding, inert gas in the second cavity (411) enters into a heat insulation strip in the broken bridge aluminum plate.

Description

Laser welding device and welding method for door and window frames of heat insulation bridge cut-off of motor home Technical Field The invention relates to the technical field of bridge-cut-off frame welding, in particular to a laser welding device and a welding method for a door and window frame of a heat-insulating bridge-cut-off of a motor home. Background The bridge cut-off door and window frame adopts laser welding, utilize high energy density laser beam to melt aluminium alloy ex-trusions 45 group angle seam fast, make the section fusion as an organic whole, its core meaning lies in under the prerequisite that does not harm PA66 heat-proof strip, heat input is little, warp extremely low, promote door and window bight intensity and leakproofness by a wide margin, eliminate group angle gap, realize seamless pleasing to the eye, airtight water proofness is better, wind pressure resistance is stronger, the effect of non-deformable for a long time, replace traditional group angle technology simultaneously, promote door and window overall quality and life, bridge cut-off door and window frame includes aluminium alloy frame, the medial surface welded fastening of frame has two contactless bridge cut-off aluminum plates, it has the heat-proof strip to fill between two aluminum plates. When welding door and window frame and bridge cut-off aluminum plate among the prior art, generally weld aluminum plate and frame laminating department through the laser welding rifle of linear movement, current equipment can't weld arc aluminum plate, and the reliability is lower, and current device is when welding aluminum plate, generally spouts inert gas to welding seam department through the jet head, and inert gas's consumption is great, and at welded in-process, the thermal-insulated strip that contacts with aluminum plate probably melts because of welded high temperature, reduces the thermal-insulated performance of thermal-insulated strip. Disclosure of Invention The invention aims to solve the defects in the background art, and provides a laser welding device and a laser welding method for a door and window frame of a heat insulation bridge cut-off of a motor home. In order to achieve the aim, the technical scheme includes that the laser welding device for the heat-insulating bridge-cut-off door window frame of the motor home comprises a main body plate, two symmetrically arranged first limiting grooves are formed in the upper end of the main body plate, first motors are symmetrically connected to the side faces of the main body plate, driving shaft ends of the two first motors are respectively and fixedly connected with first threaded rods, polishing and welding mechanisms and clamping mechanisms are respectively arranged in the two first limiting grooves, the polishing and welding mechanisms comprise first limiting blocks which are arranged in the first limiting grooves in a sliding mode, the first limiting blocks are matched with the first threaded rods in a matched mode, first electric telescopic rods are arranged at the upper ends of the first limiting blocks, first fixing bodies are fixedly connected to telescopic ends of the first electric telescopic rods, first cavities are formed in the upper ends of the first fixing bodies, second motors are fixedly connected to the first cavities, driving shaft ends of the second motors are fixedly connected with rotating plates, and air inflation and positioning mechanisms for the bridge-cut-off aluminum plates and limiting inflation mechanisms are arranged at the upper ends of the main body plate. Preferably, the annular groove is seted up to the upper end of first fixed body, the lower extreme fixedly connected with of rotor plate and annular groove normal running fit's spacing ring, the upper end symmetry of rotor plate has seted up first empty slot, one fixedly connected with third motor in the first empty slot, the drive shaft end fixedly connected with second electric telescopic handle of third motor, the flexible tip fixedly connected with stick of polishing of second electric telescopic handle. Preferably, the rotating plate is fixedly connected with a fourth motor in another first empty slot, a transmission shaft end of the fourth motor is fixedly connected with a third electric telescopic rod, a telescopic end part of the third electric telescopic rod is fixedly connected with a laser welding head, a fixed end of the third electric telescopic rod is connected with a flexible telescopic cover, the upper end of the rotating plate is fixedly connected with a first air pump, the side surface of the flexible telescopic cover is communicated with the first air pump through a first air pipe, and an air outlet end of the first air pump is communicated with a recovery tank. Preferably, the fixture includes a plurality of second stopper that slides and sets up in first spacing inslot, the upper end fixedly connected with fourth electric telescopic handle of second stopper,