Laser welding device for curtain wall support structure

Abstract

The present invention discloses a laser welding device for a curtain wall support structure, which relates to the field of welding technology and includes a bearing mechanism and a laser welding mechanism. The bearing mechanism includes a mold tooling plate, a plurality of longitudinal tooling grooves are provided on the mold tooling plate at equal intervals, the longitudinal tooling grooves are used to place keel columns, a transverse tooling groove is provided on the mold tooling plate, the transverse tooling grooves are connected to the longitudinal tooling grooves, the transverse tooling grooves are used to place wall fixing plates, the wall fixing plates and the keel columns are welded together by a laser welding mechanism, welding holes are provided through the wall fixing plates at positions corresponding to the keel columns, annular welds are formed at contact positions of the welding holes and the keel columns, annular welds are formed in the middle of the contact between the wall fixing plates and the keel columns, and rectangular welds are formed at the contact edge positions, thereby improving the strength of the curtain wall support structure. Secondly, the annular welds are in a closed state, which greatly extends the service life of the curtain wall support structure.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, in particular to a laser welding device for a curtain wall supporting structure. Background Art

[0002] Curtain walls are an important component of the exterior envelope of modern buildings, and the welding quality of their supporting structures is directly related to the safety, durability, and aesthetics of the building. The curtain wall supporting structure is usually composed of keel columns and wall fixing plates connected by welding to form a load-bearing skeleton. As buildings develop towards higher heights and complexity, traditional welding processes have gradually exposed significant defects when faced with the demand for high-precision and complex structural welding. At present, the welding of keel columns and wall fixing plates is generally only carried out at the contact edge positions between the two, forming a regular rectangular weld. This welding method is limited by the positioning accuracy of traditional tooling and the movement capacity of the welding gun, and cannot effectively weld the middle area of ​​the contact surface. For example, when the keel column and the wall fixing plate are assembled in a surface contact form, traditional welding equipment has a single tooling positioning mechanism and a limited welding gun angle adjustment range, resulting in the middle of the contact surface becoming a welding blind spot, and can only complete linear welding of the edge area.

[0003] The structural defects brought about by this "edge welding" mode are extremely prominent: on the one hand, the force distribution of the rectangular weld is concentrated around the contact surface, and the unwelded central area becomes a stress weak point. Measured data show that the shear strength of this type of weld is about 30% lower than that of full-circumferential welding. When the curtain wall is subjected to dynamic loads such as wind loads and temperature deformation, the unwelded area in the middle is prone to stress concentration, leading to weld cracking and even structural failure; on the other hand, the exposed rectangular weld is directly exposed to the external environment, and rainwater, dust and corrosive gases can easily penetrate through the gap between the weld and the base material. Especially in coastal areas or industrial pollution environments, sea salt particles and acidic substances will accelerate the electrochemical corrosion of the weld metal. Rust and peeling usually occur within 2-3 years, causing the welding strength to decrease by more than 50%, greatly shortening the actual service life of the curtain wall. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a laser welding device for a curtain wall support structure to solve the deficiencies of the prior art.

[0005] The objectives of the present invention are achieved through the following technical solutions: A laser welding device for a curtain wall support structure, comprising a bearing mechanism and a laser welding mechanism, wherein the bearing mechanism comprises a mold tooling plate, wherein the mold tooling plate is provided with a plurality of longitudinal tooling grooves at equal intervals, wherein the longitudinal tooling grooves are used to place keel columns, and wherein the mold tooling plate is provided with transverse tooling grooves, wherein the transverse tooling grooves are connected to the longitudinal tooling grooves, wherein the transverse tooling grooves are used to place wall fixing plates, wherein the wall fixing plates and the keel columns are welded together by a laser welding mechanism;

[0006] The laser welding mechanism includes a multi-degree-of-freedom mounting frame, a welding mounting plate and an adjustable welding assembly, wherein the welding mounting plate is mounted on the multi-degree-of-freedom mounting frame, and the multi-degree-of-freedom mounting frame is used to drive the welding mounting plate to move along the X, Y and Z axes in the spatial coordinate system, and the adjustable welding assembly is mounted on the welding mounting plate, and the adjustable welding assembly includes a lifting ring, a rotating ring, a laser welding gun and a hollow focusing tube, wherein the lifting ring has the freedom to move in the vertical direction, the rotating ring is rotatably assembled on the inner ring of the lifting ring, and the hollow focusing tube is arranged on the inner ring of the rotating ring, and two rotating shafts are symmetrically fixed to the side wall of the hollow focusing tube, and the rotating shaft is rotatably connected to the rotating ring, and the deflection center of the hollow focusing tube is located on the axis of the rotating ring, and the top of the hollow focusing tube is coaxially connected to the welding port of the laser welding gun;

[0007] The wall fixing plate is provided with a welding hole at a position corresponding to the keel column, and a circular weld is formed at a contact position between the welding hole and the keel column.

[0008] Furthermore, a circular mounting hole is provided through the welding mounting plate, a fine-motion ring is slidably mounted on the lifting ring, the fine-motion ring is arranged in the circular mounting hole, the side wall of the fine-motion ring is connected with a plurality of adjustment springs along its own circumferential direction, the adjustment spring is connected to the inner wall of the circular mounting hole, a hollow positioning cone is coaxially fixed to the bottom of the fine-motion ring, and the diameter of the hollow positioning cone gradually decreases in the direction away from the fine-motion ring.

[0009] Furthermore, the top surface and the bottom surface of the fine motion ring are both in contact with a limit ring, the outer ring of the limit ring is fixed to the inner ring of the circular mounting hole, and the inner ring diameter of the limit ring is larger than the inner ring diameter of the fine motion ring.

[0010] Furthermore, a cylinder mounting groove is provided on the top of the fine-motion ring, a cylinder is vertically mounted in the cylinder mounting groove, a telescopic shaft of the cylinder is connected to a drive plate, and the drive plate is fixed on the side wall of the lifting ring.

[0011] Furthermore, a motor mounting groove is provided on the top of the lifting ring, a motor is installed in the motor mounting groove, the output shaft of the motor is connected to a driving gear, an outer ring gear is fixedly mounted on the rotating ring, the outer ring gear engages with the driving gear, a servo is installed on the side wall of the rotating ring, and the output shaft of the servo is connected to one of the rotating shafts through a coupling.

[0012] Furthermore, the multi-degree-of-freedom mounting frame includes a sliding beam, a sliding seat and two parallel lifting beams. The bearing mechanism is arranged between the two lifting beams. The two ends of the sliding beam are respectively arranged on the two lifting beams. The sliding seat is slidably arranged on the top of the sliding beam. The moving direction of the sliding beam is perpendicular to the moving direction of the sliding seat. One end of the welded mounting plate is fixed on the sliding seat.

[0013] Furthermore, support cylinders are vertically provided at both ends of the lifting beam, and the telescopic shaft of the support cylinder is connected to the lifting beam. A first screw rod is rotatably provided on the top of the lifting beam, and a first screw rod slider is threadedly mounted on the first screw rod, and the sliding beam is fixed on the first screw rod slider, and a first motor is installed at one end of the lifting beam, and the output shaft of the first motor is transmission-connected to one end of the first screw rod. A screw rod groove is provided on the top surface of the sliding beam, and a second screw rod is rotatably provided in the screw rod groove, and the second screw rod is perpendicular to the first screw rod, and a second screw rod slider is threadedly mounted on the second screw rod, and the second screw rod slider is slidably adapted to the screw rod groove, and the sliding seat is fixedly connected to the second screw rod slider, and a second motor is installed at one end of the sliding beam, and the output shaft of the second motor is transmission-connected to one end of the second screw rod.

[0014] Furthermore, the supporting mechanism also includes a flip limit mechanism and two fixed supports, the mold tooling plate is located between the two fixed supports, and a flip spindle is fixed in the middle of both ends of the mold tooling plate, and the two flip spindles are rotatably connected to the two fixed supports respectively, and the longitudinal tooling groove and the transverse tooling groove are both opened through the thickness direction of the mold tooling plate, and the top and bottom surfaces of the mold tooling plate are both provided with a flip limit mechanism, the flip limit mechanism includes a plurality of limit components, and limit components are provided at both ends of the longitudinal direction of the longitudinal tooling groove, and the limit components include a limit mounting seat and a limit support plate, the limit mounting seat is fixed on the mold tooling plate, and the limit support plate is slidably penetrated on the limit mounting seat, and the limit support plate is used to move into the longitudinal tooling groove to support the keel column.

[0015] Furthermore, a flip motor is installed on one of the fixed supports, and the output shaft of the flip motor is transmission-connected to one of the flip spindles. A locking mechanism is provided on one of the fixed supports, and the locking mechanism includes a locking cylinder, a locking cone rod and a locking gear. A locking gear is fixedly sleeved on one of the flip spindles, and the cylinder body of the locking cylinder is installed on the fixed support. The telescopic shaft of the locking cylinder is connected to the large diameter end of the locking cone rod, and the small diameter end of the locking cone rod is inserted into the tooth groove of the locking gear.

[0016] Furthermore, the limit support plate contacts the mold tooling plate, and the end of the limit support plate away from the longitudinal tooling groove passes through the limit mounting seat and is connected to the driving push plate. The middle part of the driving push plate is connected to the telescopic shaft of the pushing cylinder, and the cylinder body of the pushing cylinder is installed on the mold tooling plate.

[0017] The beneficial effects of the present invention are:

[0018] 1. A welding hole is opened at the overlapping position of the wall fixing plate and the keel column. A laser welding mechanism is used to weld a circular weld at the contact position between the welding hole and the keel column. Then, a rectangular weld is formed at the edge position where the wall fixing plate and the keel column contact, which makes the welding area larger. Both the middle and the edge are welded, which greatly improves the welding strength. Secondly, the end face of the wall fixing plate away from the keel column is fixed to the wall, thereby closing the welding hole, protecting the circular weld, and greatly extending the service life of the curtain wall support structure.

[0019] 2. The multi-degree-of-freedom mounting frame drives the adjustable welding assembly to move in three directions within the spatial coordinate system, so that the rotating ring is coaxial with the welding hole and the hollow focusing tube extends into the welding hole. The rotating shaft then drives the hollow focusing tube to deflect so that the bottom of the hollow focusing tube contacts the side wall of the welding hole. The lifting ring then drives the hollow focusing tube to move downward so that the hollow focusing tube contacts the wall fixing plate and the keel column at the same time, so that the hollow focusing tube corresponds to the contact position between the welding hole and the keel column. Finally, the rotating ring drives the hollow focusing tube to rotate one circle, so that a circular weld is formed at the contact position between the welding hole and the keel column. This can complete the automated welding of the circular weld, greatly improving the welding production efficiency of the curtain wall support structure.

[0020] 3. Due to the particularity of rectangular welds, welding needs to be performed on both sides of the curtain wall support structure to form rectangular welds. Therefore, the curtain wall support structure needs to be flipped over. The longitudinal tooling slots can position and limit the keel columns, and the transverse tooling slots can position and limit the wall fixing plates. Both the longitudinal tooling slots and the transverse tooling slots are set through, so that both sides of the curtain wall support structure are exposed. The welding surface of the curtain wall support structure can be adjusted by flipping the mold tooling plate, and the welding of the two sides is completed in sequence to form a rectangular weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a laser welding device for a curtain wall support structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the laser welding mechanism in a laser welding device for a curtain wall support structure of the present invention. Figure 1 ;

[0023] Figure 3This is a schematic diagram of the structure of the laser welding mechanism in a laser welding device for a curtain wall support structure of the present invention. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the partial structure of a laser welding mechanism in a laser welding device for a curtain wall support structure according to the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of a laser welding device for a curtain wall support structure of the present invention. Figure 2 ;

[0026] Figure 6 This is a schematic diagram of the structure of a laser welding device for a curtain wall support structure of the present invention. Figure 3 ;

[0027] Figure 7 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 8 This is a schematic structural diagram of a hollow focusing tube in a laser welding device for a curtain wall support structure according to the present invention;

[0029] Figure 9 This is a schematic diagram of the welding of the curtain wall support structure of the present invention;

[0030] In the figure, 1-mold tooling plate, 2-longitudinal tooling slot, 3-transverse tooling slot, 4-welding mounting plate, 5-lifting ring, 6-rotating ring, 7-laser welding gun, 8-hollow focusing tube, 9-rotating shaft, 10-welding hole, 11-circular mounting hole, 12-micro-motion ring, 13-adjusting spring, 14-hollow positioning cone, 15-limiting ring, 16-cylinder mounting slot, 17-cylinder, 18-drive plate, 19-motor mounting slot, 20-motor, 21-driving gear, 22-outer gear ring, 23-servo, 24-sliding beam, 25-sliding seat, 26-lifting beam, 27-support cylinder, 28-first screw rod, 29-first screw rod slider, 30-first motor, 31-screw rod Slot, 32-second screw rod, 33-second screw rod slider, 34-second motor, 35-fixed support, 36-flip spindle, 37-limit mounting seat, 38-limit support plate, 39-flip motor, 42-locking cylinder, 43-locking cone rod, 44-locking gear, 45-driving push plate, 46-pushing cylinder, 47-wall fixing plate, 48-keel column, 49-deflection tube, 50-guide tube, 51-sliding tube, 52-electromagnet mounting slot, 53-electromagnet, 54-guide rod, 55-permanent magnet, 56-reset spring, 57-limiting slot body, 58-limiting slider, 59-linear drive module, 60-base plate, 61-lifting cylinder, 62-C-type seat. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0032] Example 1

[0033] like Figures 1 to 9As shown, a laser welding device for a curtain wall support structure includes a bearing mechanism and a laser welding mechanism. The bearing mechanism includes a mold tooling plate 1. The mold tooling plate 1 is provided with a plurality of longitudinal tooling grooves 2 at equal intervals. The longitudinal tooling grooves 2 are used to place keel columns. The mold tooling plate 1 is provided with transverse tooling grooves 3. The transverse tooling grooves 3 are connected to the longitudinal tooling grooves 2. The transverse tooling grooves 3 are used to place wall fixing plates. The wall fixing plates and the keel columns are welded together by a laser welding mechanism. The length and width of the longitudinal tooling grooves 2 match the length and width of the keel columns 48. The thickness of the longitudinal tooling grooves 2 is equal to or greater than the keel columns 48. The thickness of the wall fixing plate 47 is the sum of its thickness and the thickness of the wall fixing plate 47. The keel column 48 is placed in the longitudinal tooling groove 2 manually or by a mechanical arm. The keel column 48 is limited and positioned by the longitudinal tooling groove 2. Then the wall fixing plate 47 is placed in the transverse tooling groove 3 so that the wall fixing plate 47 contacts the keel column 48 and is in a state to be welded. The wall fixing plate 47 is limited and positioned by the transverse tooling groove 3 to ensure that the keel column 48 and the wall fixing plate 47 will not deviate during the welding process, thereby ensuring the welding quality. The wall fixing plate 47 and the keel column 48 are welded to form a curtain wall support structure.The laser welding mechanism includes a multi-degree-of-freedom mounting frame, a welding mounting plate 4 and an adjustable welding assembly. The welding mounting plate 4 is mounted on the multi-degree-of-freedom mounting frame. The multi-degree-of-freedom mounting frame is used to drive the welding mounting plate 4 to move along the X, Y, and Z axes in the spatial coordinate system. The adjustable welding assembly is mounted on the welding mounting plate 4. The adjustable welding assembly includes a lifting ring 5, a rotating ring 6, a laser welding gun 7, and a hollow focusing tube 8. The lifting ring 5 has the freedom to move in the vertical direction. The rotating ring 6 is rotatably assembled on the inner ring of the lifting ring 5. The hollow focusing tube 8 is arranged on the inner ring of the rotating ring 6. The side wall of the hollow focusing tube 8 is symmetrically fixed with two The rotating shaft 9 is rotatably connected to the rotating ring 6. The deflection center of the hollow focusing tube 8 is located on the axis of the rotating ring 6. The top of the hollow focusing tube 8 is coaxially connected to the welding port of the laser welding gun 7. The wall fixing plate is provided with a welding hole 10 at the position corresponding to the keel column. The contact position of the welding hole 10 and the keel column forms an annular weld. Since the wall fixing plate 47 contacts the top surface of the keel column 48, the welding hole 10 is exposed, which is convenient for the laser welding mechanism to perform welding operation on it. The specific welding process is as follows: with one corner of the mold tooling plate as the coordinate origin, the longitudinal tooling slot 2 and the transverse tooling slot 2 can be used to connect the longitudinal tooling slot 2 and the transverse tooling slot 2. The coordinate positioning keel column 48 and the wall fixing plate 47 of the tooling slot 3 can also coordinate the position of the welding hole 10. According to the coordinate of the welding hole 10, the multi-degree-of-freedom mounting frame drives the adjustable welding assembly to move, so that the adjustable welding assembly can move along three axial directions in the spatial coordinate system, thereby quickly adjusting the position between the welding hole 10 and the hollow focusing tube 8. First, the rotating ring 6 is coaxial with the welding hole 10, and the hollow focusing tube 8 is extended into the welding hole 10. Then, the rotating shaft 9 drives the hollow focusing tube 8 to deflect so that the bottom of the hollow focusing tube 8 contacts the side wall of the welding hole 10. Then, the lifting ring 5 drives the hollow focusing tube 8 to move. Tube 8 moves downward, causing the hollow focusing tube 8 to contact the side wall of the welding hole 10 while also moving to the bottom to contact the keel column 48, so that the hollow focusing tube 8 simultaneously contacts the wall fixing plate 47 and the keel column 48. This positions the hollow focusing tube 8 at the contact position between the welding hole 10 and the keel column 48, placing the annular weld within the welding range of the hollow focusing tube 8. Finally, the rotating ring 6 drives the hollow focusing tube 8 to rotate one circle, thereby forming an annular weld at the contact position between the wall fixing plate 47 and the keel column 48. This enables automated welding of the annular weld, greatly improving the welding production efficiency of the curtain wall support structure.

[0034] Example 2

[0035] During the laser welding process, the wall fixing plate 47 and the keel column 48 are both in a high temperature state near the annular weld, and the hollow focusing tube 8 contacts the wall fixing plate 47 and the keel column 48 for welding, resulting in high temperature that will affect the service life of the hollow focusing tube 8. Therefore, the temperature resistance requirement of the hollow focusing tube 8 is relatively high. Therefore, based on the first embodiment, as shown in FIG. Figure 1 and Figure 8 As shown, the hollow focusing tube 8 includes a deflection tube 49, a guide tube 50 and a sliding tube 51. One end of the deflection tube 49 is connected to the laser welding gun 7, and the other end is coaxially fixed to the guide tube 50. The deflection tube 49 is rotatably connected to the rotating ring 6 through the rotating shaft 9. The outer diameter of the guide tube 50 is smaller than the outer diameter of the deflection tube 49. The sliding tube 51 is slidably sleeved on the guide tube 50. An electromagnet mounting groove 52 is opened at one end of the deflection tube 49 close to the sliding tube 51. An electromagnet 53 is installed in the electromagnet mounting groove 52. The electromagnet 53 is slidably sleeved on the guide tube 50. The dynamic wearer is provided with a guide rod 54. One end of the guide rod 54 close to the electromagnet 53 is fixed with a permanent magnet 55, and the other end is fixedly connected to the sliding tube 51. When the electromagnet 53 is energized, it generates a magnetic pole with the same magnetic properties as the permanent magnet 55. The deflection tube 49 and the sliding tube 51 are connected by a return spring 56. The inner wall of the sliding tube 51 is provided with a limiting groove 57 along its own axial direction. The limiting slide 58 is slidably adapted in the limiting groove 57. The limiting slide 58 is fixedly connected to the guide tube 50. When positioning the position between the hollow focusing tube 8 and the annular weld, The electromagnet 53 is energized, and the electromagnet 53 repels the permanent magnet 55, causing the guide rod 54 to drive the sliding tube 51 away from the deflection tube 49, so that the limit slider 58 abuts against the end of the limit slot 57 close to the deflection tube 49. At this time, the return spring 56 is in a stretched state, causing the sliding tube 51 to move to the maximum position. When the sliding tube 51 simultaneously contacts the corresponding annular welds of the keel column 48 and the wall fixing plate 47, the electromagnet 53 is de-energized, causing the sliding tube 51 to move close to the deflection tube 49 under the reaction force of the return spring 56. Move to separate the sliding tube 51 from the keel column 48 and the wall fixing plate 47. After the hollow focusing tube 8 is positioned, the hollow focusing tube 8 is separated from the keel column 48 and the wall fixing plate 47. This does not affect welding and prevents the high temperature of welding from being transferred to the hollow focusing tube 8. Secondly, the lens for laser focusing is installed in the sliding tube 51, so that the laser beam enters the sliding tube 51 and is then focused to form a high-energy beam, thereby not affecting the arrangement of the electromagnet 53 and the permanent magnet 55.

[0036] Example 3

[0037] Based on the second embodiment, Figures 1 to 7As shown, the bearing mechanism also includes a flip limit mechanism and two fixed supports 35. The mold tooling plate 1 is located between the two fixed supports 35. The middle part of both ends of the mold tooling plate 1 is fixed with a flip spindle 36. The two flip spindles 36 are rotatably connected to the two fixed supports 35 respectively. The longitudinal tooling groove 2 and the transverse tooling groove 3 are both opened along the thickness direction of the mold tooling plate 1. The top and bottom surfaces of the mold tooling plate 1 are both provided with a flip limit mechanism. The flip limit mechanism includes a plurality of limit components. Both ends of the longitudinal tooling groove 2 in the length direction are provided with limit components. The limit components include a limit mounting seat 37 and a limit support plate 38. The limit mounting seat 37 is fixed on the mold tooling plate 1. The limit The support plate 38 is slidably mounted on the limit mounting seat 37. The limit support plate 38 is used to move into the longitudinal tooling slot 2 to support the keel column. The limit support plate 38 contacts the mold tooling plate 1. The end of the limit support plate 38 away from the longitudinal tooling slot 2 passes through the limit mounting seat 37 and is connected to the driving push plate 45. The middle part of the driving push plate 45 is connected to the telescopic shaft of the pushing cylinder 46. The cylinder body of the pushing cylinder 46 is installed on the mold tooling plate 1. The specific tooling method of the curtain wall support structure is: the flip limit mechanism on the bottom surface of the mold tooling plate 1 is actuated, and the driving push plate 45 is driven to move by pushing the cylinder 46, so that the driving push plate 45 drives the limit support plate 38 below to move into the longitudinal tooling slot 2, and through This limiting support plate 38 supports the keel column 48 placed in the longitudinal tooling groove 2, while the limiting support plate 38 on the top surface of the mold tooling plate 1 does not extend into the longitudinal tooling groove 2, thereby not affecting the keel column 48 from being fed into the longitudinal tooling groove 2. After the keel column 48 and the wall fixing plate 47 are tooled, a circular weld is first welded in the welding hole 10 to connect the wall fixing plate 47 and the keel column 48 together, and then linear welding is performed on the edge position where the keel column 48 contacts the wall fixing plate 47 to form two welds. Then, the flip limiting mechanism on the top surface of the mold tooling plate 1 is activated to make the limiting support plate 38 on the top surface of the mold tooling plate 1 extend into the longitudinal tooling groove 2, thereby The curtain wall support structure is limited in the longitudinal tooling groove 2 and the transverse tooling groove 3, and then the mold tooling plate 1 is flipped 180°, thereby driving the curtain wall support structure to flip 180°, so that the other side of the curtain wall support structure is facing upward and in a welding state. Since the longitudinal tooling groove 2 and the transverse tooling groove 3 are both set through, both sides of the curtain wall support structure are in a bare state. After the curtain wall support structure is turned over, the contact edge position of the keel column 48 and the wall fixing plate 47 can be welded by the laser welding mechanism to form two welds again, which are connected with the previous two welds to form a rectangular weld, so that the welding operation of the rectangular weld can also be automated, greatly improving the production efficiency of the curtain wall support structure.It should be noted that, since both the longitudinal tooling groove 2 and the transverse tooling groove 3 are set through, in order to ensure the integrity of the mold tooling plate 1, only one transverse tooling groove 3 is opened on the mold tooling plate 1. In order to ensure the structural strength of the curtain wall support structure, wall fixing plates are welded at both ends of the keel column 48. Therefore, the transverse tooling groove 3 is set close to one end of the longitudinal tooling groove 2. The wall fixing plate 47 is first welded to one end of the keel column 48. There are two groups of bearing mechanisms. The transverse tooling groove 3 on the other group of bearing mechanisms is set close to the other end of the longitudinal tooling groove 2, that is, the wall fixing plate 47 is first welded to one end of the keel column 48, and then the curtain wall support structure is loaded onto the other bearing mechanism. Both groups of bearing mechanisms are located within the working range of the laser welding mechanism, and then the wall fixing plate 47 is welded at the other end of the keel column 48 to ensure the structural strength of the curtain wall support structure.

[0038] Furthermore, a flip motor 39 is mounted on one of the fixed supports 35, and the output shaft of the flip motor 39 is transmission-connected to one of the flip spindles 36. A locking mechanism is provided on one of the fixed supports 35, and the locking mechanism includes a locking cylinder 42, a locking cone rod 43 and a locking gear 44. A locking gear 44 is fixedly sleeved on one of the flip spindles 36, and the cylinder body of the locking cylinder 42 is mounted on the fixed support 35. The telescopic shaft of the locking cylinder 42 is connected to the large-diameter end of the locking cone rod 43, and the small-diameter end of the locking cone rod 43 is inserted into the tooth groove of the locking gear 44. The flip motor 39 drives the flip spindle 36 to rotate, and drives the flip spindle 36 to rotate 180°, so that the mold tooling Plate 1 drives the curtain wall support structure to complete the flipping operation. In order to prevent the output shaft of the flipping motor 39 from continuously bearing torque and affecting its service life, when the flipping motor 39 is not working, the flipping spindle 36 is locked by the locking mechanism to maintain the stability of the mold tooling plate 1, which also plays a role in protecting the flipping motor 39. Specifically: when the flipping motor 39 drives the mold tooling plate 1 to rotate to the specified angle, the flipping motor 39 stops, and the self-locking of the flipping motor 39 is first used to stabilize the position of the mold tooling plate 1, and then the locking cylinder 42 pushes the locking cone rod 43 to move, so that one end of the locking cone rod 43 is inserted into the tooth groove of the locking gear 44, thereby locking the flipping spindle 36 and maintaining the stability of the mold tooling plate 1.

[0039] Example 4

[0040] In the technical solution of the third embodiment, during the welding process of the rectangular weld, the hollow focusing tube 8 needs to be inserted into the longitudinal tooling groove 2 and the transverse tooling groove 3 for welding. However, due to the obstruction of the inner wall of the mold tooling plate 1, a complete rectangular weld cannot be formed along the contact edge of the keel column 48 and the wall fixing plate 47. Therefore, based on the third embodiment, as shown in FIG. Figures 1 to 6As shown, a lifting mechanism is provided below the mold tooling plate 1, and the lifting mechanism includes a linear drive module 59, a base plate 60 and a lifting cylinder 61. Two linear drive modules 59 are arranged parallel to the ground, and the linear drive module 59 is perpendicular to the mold tooling plate 1. The base plate 60 is installed on the slide of the linear drive module 59. Two lifting cylinders 61 are vertically installed on the base plate 60. The telescopic shaft of the lifting cylinder 61 can be extended into the longitudinal tooling groove 2 to lift the curtain wall support structure. When the annular weld is completed, the lifting cylinder 61 is extended, so that the telescopic shaft of the lifting cylinder 61 lifts the curtain wall support structure, so that the edge welding position of the curtain wall support structure is moved to the top of the mold tooling plate 1, and the keel column 48 is not completely separated from the longitudinal tooling groove 2, and the curtain wall support structure is kept limited. At this time, the edge positions of the wall fixing plate 47 and the keel column 48 are in a bare state, and laser welding is performed. The mechanism can complete the welding of the two welds without blocking, and then the lifting cylinder 61 is reset, and the linear drive module 59 drives the lifting cylinder 61 to move to one side of the mold tooling plate 1, so that the mold tooling plate 1 will not interfere with the lifting mechanism during the flipping process. After the mold tooling plate 1 drives the curtain wall support structure to flip into place, the linear drive module 59 drives the lifting cylinder 61 to reset again and move to the bottom of the mold tooling plate 1. At this time, the flip limit mechanism above the mold tooling plate 1 is activated, so that the limit support plate 38 moves to the outside of the longitudinal tooling groove 2, so that the lifting cylinder 61 can smoothly lift the curtain wall support structure, and weld the edge contact position of the keel column 48 and the wall fixing plate 47 again, and weld two welds again. This weld connects to the previous weld to form a rectangular weld, so that a rectangular weld can be smoothly welded, so that the curtain wall support structure has higher strength.

[0041] Furthermore, in order to realize welding of curtain wall support structures of different sizes, the mold tooling plate 1 adopts a detachable structure. The mold tooling plate 1 includes a mold plate and a C-shaped seat 62. The mold plate is arranged between the two C-shaped seats 62. The C-shaped opening of the C-shaped seat 62 faces the mold plate, so that the two ends of the mold plate are respectively arranged in the C-shaped openings of the C-shaped seat 62, and the C-shaped seat 62 is connected to the mold plate by bolts. The flip spindle 36 is fixedly connected to the C-shaped seat 62, so that mold plates can be set accordingly for curtain wall support structures of different sizes. For the production of curtain wall support structures of different sizes, the corresponding matching mold plates can be replaced.

[0042] Example 5

[0043] Based on the fourth embodiment, Figures 1 to 9As shown, a circular mounting hole 11 is formed on the welding mounting plate 4, and a fine-motion ring 12 is slidably mounted on the lifting ring 5. The fine-motion ring 12 is arranged in the circular mounting hole 11. The side wall of the fine-motion ring 12 is connected with a plurality of adjustment springs 13 along its own circumferential direction. The adjustment springs 13 are connected to the inner wall of the circular mounting hole 11. A hollow positioning cone 14 is coaxially fixed to the bottom of the fine-motion ring 12. The diameter of the hollow positioning cone 14 gradually decreases in the direction away from the fine-motion ring 12. Although the welding hole 10 is positioned according to the coordinates The position of the rotating ring 6 is shown in FIG1 , but due to the existence of errors, there will still be deviations in the coaxiality of the rotating ring 6 and the welding hole 10. For this reason, a fine-motion ring 12 and a hollow positioning cone 14 are provided. When the hollow positioning cone 14 moves downward to make the hollow focusing tube 8 extend into the welding hole 10, the hollow positioning cone 14 will be inserted into the welding hole 10, and the fine-motion ring 12 is driven to squeeze the adjusting spring 13 to move by the extrusion of the conical surface of the hollow positioning cone 14 and the wall fixing plate 47. The adjusting spring 13 is not added with other guide structures, so that the compression and tension directions of the adjusting spring 13 are not directional, so that under the action of the hollow positioning cone 14 and the welding hole 10, the rotating ring 6 can be accurately coaxial with the welding hole 10, and then the hollow focusing tube 8 is driven downward by the lifting ring 5 to move the hollow focusing tube 8 out of the hollow positioning cone 14 and extend into the welding hole 10, and an annular weld is formed in the welding hole 10 by the welding method in Example 1. It is worth noting that the size of the hollow positioning cone 14 is designed according to the size of the welding hole 10, so that the hollow positioning cone 14 does not need to be fully extended into the welding hole 10 to complete the coaxial positioning operation. The large diameter end of the hollow positioning cone 14 is fixedly connected to the micro-ring 12 by screws, and the matching hollow positioning cone 14 can be replaced according to the diameter size of the welding hole 10 in the curtain wall support structure.

[0044] Furthermore, a limit ring 15 is provided in contact with the top and bottom surfaces of the fine-motion ring 12. The outer ring of the limit ring 15 is fixed to the inner ring of the circular mounting hole 11. The inner ring diameter of the limit ring 15 is larger than the inner ring diameter of the fine-motion ring 12. The axial freedom of the fine-motion ring 12 is limited by the two limit rings 15, so that the fine-motion ring 12 can only be fine-tuned in the horizontal direction to complete the coaxial adjustment with the welding hole 10.

[0045] Example 6

[0046] On the basis of the fifth embodiment, a cylinder mounting groove 16 is provided on the top of the fine-motion ring 12, and a cylinder 17 is vertically installed in the cylinder mounting groove 16. The telescopic shaft of the cylinder 17 is connected to a drive plate 18, and the drive plate 18 is fixed to the side wall of the lifting ring 5. The lifting ring 5 is driven to move on the fine-motion ring 12 by the telescopic movement of the cylinder 17 to adjust the position of the hollow focusing tube 8. After the coaxial adjustment is completed, the hollow focusing tube 8 is moved downward and extended into the welding hole 10. A motor mounting groove 19 is provided on the top of the lifting ring 5, and a motor 20 is installed in the motor mounting groove 19. The motor 20 is The output shaft is connected to a driving gear 21. An outer ring gear 22 is fixedly mounted on the rotating ring 6, meshing with the driving gear 21. A servo 23 is mounted on the side wall of the rotating ring 6. The output shaft of the servo 23 is connected to one of the rotating shafts 9 via a coupling. The servo 23 drives the rotating shaft 9 to deflect, which in turn drives the hollow focusing tube 8 to weld the corresponding annular weld. The motor 20, through the meshing of the driving gear 21 and the outer ring gear 22, drives the rotating ring 6 to rotate one revolution, thereby forming an annular weld between the keel column 48 and the wall fixing plate 47. In practice, to prevent wire winding, an electric slip ring is installed on the rotating ring 6. The wires of the servo 23 and the electromagnet 53 are routed through the electric slip ring to avoid wire winding.

[0047] Example 7

[0048] Based on Example 6, Figures 1 to 6As shown, the multi-degree-of-freedom mounting frame includes a sliding beam 24, a sliding seat 25 and two parallel lifting beams 26. The bearing mechanism is arranged between the two lifting beams 26. The two ends of the sliding beam 24 are respectively arranged on the two lifting beams 26. The sliding seat 25 is slidably arranged on the top of the sliding beam 24. The moving direction of the sliding beam 24 is perpendicular to the moving direction of the sliding seat 25. One end of the welding mounting plate 4 is fixed on the sliding seat 25. Support cylinders 27 are vertically arranged at both ends of the lifting beam 26. The telescopic shaft of the support cylinder 27 is connected to the lifting beam 26. The lowering beam 26 is provided with a first screw rod 28 for rotation at the top of the lifting beam 26. The first screw rod 28 is threadedly sleeved with a first screw rod slider 29. The sliding beam 24 is fixed to the first screw rod slider 29. A first motor 30 is installed at one end of the lifting beam 26. The output shaft of the first motor 30 is connected to one end of the first screw rod 28. A screw rod groove 31 is provided on the top surface of the sliding beam 24. A second screw rod 32 is rotatably provided in the screw rod groove 31. The second screw rod 32 is perpendicular to the first screw rod 28. A second screw rod 32 is threadedly sleeved with a second screw rod The rod slider 33 and the second screw slider 33 are slidably adapted to the screw groove 31. The sliding seat 25 is fixedly connected to the second screw slider 33. A second motor 34 is installed at one end of the sliding beam 24. The output shaft of the second motor 34 is transmission-connected to one end of the second screw rod 32. The adjustable welding assembly is driven to move in the vertical direction by the extension and contraction of the support cylinder 27, so that the adjustable welding assembly has the freedom to move along the Z-axis direction in the spatial coordinate system. The first motor 30 drives the first screw rod 28 to rotate, so that the first screw slider 29 drives the sliding beam 24 to move linearly along the axial direction of the first screw rod 28, so that the adjustable welding assembly has the freedom to move along the X-axis direction in the spatial coordinate system. The second motor 34 drives the second screw rod 32 to rotate, so that the second screw slider 33 drives the sliding seat 25 to move linearly along the axial direction of the second screw rod 32, so that the adjustable welding assembly has the freedom to move along the Y-axis direction in the spatial coordinate system, so that the multi-degree-of-freedom mounting frame can drive the adjustable welding assembly to move in three directions, and can quickly move the adjustable welding assembly to the welding position.

Claims

1. A laser welding device for a curtain wall support structure, characterized in that: The invention comprises a bearing mechanism and a laser welding mechanism, wherein the bearing mechanism comprises a mold tooling plate (1), a plurality of longitudinal tooling grooves (2) are provided on the mold tooling plate (1) at equal intervals, the longitudinal tooling grooves (2) are used to place keel columns, a transverse tooling groove (3) is provided on the mold tooling plate (1), the transverse tooling groove (3) is connected to the longitudinal tooling groove (2), the transverse tooling groove (3) is used to place a wall fixing plate, and the wall fixing plate and the keel column are welded together by a laser welding mechanism; The laser welding mechanism comprises a multi-degree-of-freedom mounting frame, a welding mounting plate (4) and an adjustable welding assembly, wherein the welding mounting plate (4) is mounted on the multi-degree-of-freedom mounting frame, and the multi-degree-of-freedom mounting frame is used to drive the welding mounting plate (4) to move along the three-axis directions of X, Y and Z in a spatial coordinate system, and the adjustable welding assembly is mounted on the welding mounting plate (4), and the adjustable welding assembly comprises a lifting ring (5), a rotating ring (6), a laser welding gun (7) and a hollow focusing tube (8), wherein the lifting ring (5) has the degree of freedom to move in the vertical direction, the rotating ring (6) is rotatably assembled on the inner ring of the lifting ring (5), and the hollow focusing tube (8) is arranged on the inner ring of the rotating ring (6), and the side wall of the hollow focusing tube (8) is symmetrically fixed with two rotating shafts (9), and the rotating shaft (9) is rotatably connected to the rotating ring (6), and the deflection center of the hollow focusing tube (8) is located on the axis of the rotating ring (6), and the top of the hollow focusing tube (8) is coaxially connected to the welding port of the laser welding gun (7); The wall fixing plate is provided with a welding hole (10) at a position corresponding to the keel column, and a contact position between the welding hole (10) and the keel column forms an annular weld; A circular mounting hole (11) is formed through the welding mounting plate (4), a micro-movement ring (12) is slidably mounted on the lifting ring (5), the micro-movement ring (12) is arranged in the circular mounting hole (11), a side wall of the micro-movement ring (12) is connected to a plurality of adjustment springs (13) along its own circumferential direction, the adjustment springs (13) are connected to the inner wall of the circular mounting hole (11), a hollow positioning cone (14) is coaxially fixed to the bottom of the micro-movement ring (12), and the diameter of the hollow positioning cone (14) gradually decreases in a direction away from the micro-movement ring (12); The hollow focusing tube (8) includes a deflection tube (49), a guide tube (50) and a sliding tube (51). One end of the deflection tube (49) is connected to the laser welding gun (7), and the other end is coaxially fixed to the guide tube (50). The deflection tube (49) is rotatably connected to the rotating ring (6) through the rotating shaft (9). The outer diameter of the guide tube (50) is smaller than the outer diameter of the deflection tube (49). The sliding tube (51) is slidably sleeved on the guide tube (50). An electromagnet mounting groove (52) is provided at one end of the deflection tube (49) close to the sliding tube (51), and an electromagnet (53) is installed in the electromagnet mounting groove (52). A guide rod (54) is slidably provided in the electromagnet mounting groove (52). A permanent magnet (55) is fixed to one end of the guide rod (54) close to the electromagnet (53), and the other end is fixedly connected to the sliding tube (51). When the electromagnet (53) is energized, a magnetic pole having the same magnetic properties as the permanent magnet (55) is generated. The deflection tube (49) and the sliding tube (51) are connected via a return spring (56). A limiting groove (57) is provided on the inner wall of the sliding tube (51) along its own axial direction. A limiting slider (58) is slidably adapted in the limiting groove (57), and the limiting slider (58) is fixedly connected to the guide tube (50).

2. The laser welding device for curtain wall support structure according to claim 1, characterized in that: The top surface and the bottom surface of the micro-motion ring (12) are both in contact with a limit ring (15), the outer ring of the limit ring (15) is fixed to the inner ring of the circular mounting hole (11), and the inner ring diameter of the limit ring (15) is larger than the inner ring diameter of the micro-motion ring (12).

3. The laser welding device for a curtain wall support structure according to claim 1, characterized in that: A cylinder mounting groove (16) is provided on the top of the micro-motion ring (12), a cylinder (17) is vertically mounted in the cylinder mounting groove (16), a telescopic shaft of the cylinder (17) is connected to a drive plate (18), and the drive plate (18) is fixed to the side wall of the lifting ring (5).

4. The laser welding device for a curtain wall support structure according to claim 1, characterized in that: A motor mounting groove (19) is provided on the top of the lifting ring (5), a motor (20) is installed in the motor mounting groove (19), an output shaft of the motor (20) is connected to a driving gear (21), an outer gear ring (22) is fixedly sleeved on the rotating ring (6), the outer gear ring (22) engages with the driving gear (21), a steering gear (23) is installed on the side wall of the rotating ring (6), and an output shaft of the steering gear (23) is connected to one of the rotating shafts (9) through a coupling.

5. The laser welding device for a curtain wall support structure according to claim 1, characterized in that: The multi-degree-of-freedom mounting frame comprises a sliding beam (24), a sliding seat (25) and two parallel lifting beams (26); the bearing mechanism is arranged between the two lifting beams (26); the two ends of the sliding beam (24) are respectively arranged on the two lifting beams (26); the sliding seat (25) is slidably arranged on the top of the sliding beam (24); the moving direction of the sliding beam (24) is perpendicular to the moving direction of the sliding seat (25); and one end of the welding mounting plate (4) is fixed on the sliding seat (25).

6. The laser welding device for a curtain wall support structure according to claim 5, characterized in that: Both ends of the lifting beam (26) are vertically provided with supporting cylinders (27), the telescopic shaft of the supporting cylinder (27) is connected to the lifting beam (26), the top of the lifting beam (26) is rotatably provided with a first screw rod (28), a first screw rod slider (29) is threadedly sleeved on the first screw rod (28), the sliding beam (24) is fixed on the first screw rod slider (29), one end of the lifting beam (26) is installed with a first motor (30), the output shaft of the first motor (30) is connected to one end of the first screw rod (28), the sliding beam (24) is fixed on the first screw rod slider (29), and the first motor (30) is connected to the output shaft of the first motor (30) through a transmission mechanism. ) is provided with a screw groove (31) on the top surface, a second screw (32) is rotatably arranged in the screw groove (31), the second screw (32) is perpendicular to the first screw (28), a second screw slider (33) is threadedly sleeved on the second screw (32), the second screw slider (33) is slidably adapted to the screw groove (31), the sliding seat (25) is fixedly connected to the second screw slider (33), a second motor (34) is installed at one end of the sliding beam (24), and the output shaft of the second motor (34) is transmission-connected to one end of the second screw (32).

7. The laser welding device for a curtain wall support structure according to claim 1, characterized in that: The bearing mechanism further comprises a flip limit mechanism and two fixed supports (35), the mold tooling plate (1) is located between the two fixed supports (35), a flip spindle (36) is fixed at the middle of both ends of the mold tooling plate (1), the two flip spindles (36) are rotatably connected to the two fixed supports (35), the longitudinal tooling groove (2) and the transverse tooling groove (3) are both opened along the thickness direction of the mold tooling plate (1), and the top surface of the mold tooling plate (1) is A flip limit mechanism is provided on the bottom surface, the flip limit mechanism includes a plurality of limit assemblies, and both ends of the longitudinal tooling slot (2) in the length direction are provided with limit assemblies, the limit assemblies include a limit mounting seat (37) and a limit support plate (38), the limit mounting seat (37) is fixed on the mold tooling plate (1), the limit support plate (38) is slidably penetrated on the limit mounting seat (37), and the limit support plate (38) is used to move into the longitudinal tooling slot (2) to support the keel column.

8. The laser welding device for a curtain wall support structure according to claim 7, characterized in that: A flip motor (39) is mounted on one of the fixed supports (35), and an output shaft of the flip motor (39) is in transmission connection with one of the flip spindles (36). A locking mechanism is provided on one of the fixed supports (35), and the locking mechanism comprises a locking cylinder (42), a locking cone rod (43) and a locking gear (44). A locking gear (44) is fixedly sleeved on one of the flip spindles (36). The cylinder body of the locking cylinder (42) is mounted on the fixed support (35), and the telescopic shaft of the locking cylinder (42) is connected to the large diameter end of the locking cone rod (43), and the small diameter end of the locking cone rod (43) is inserted into the tooth groove of the locking gear (44).

9. The laser welding device for a curtain wall support structure according to claim 7, characterized in that: The limiting support plate (38) contacts the mold tooling plate (1), and one end of the limiting support plate (38) away from the longitudinal tooling groove (2) passes through the limiting mounting seat (37) and is connected to the driving push plate (45). The middle part of the driving push plate (45) is connected to the telescopic shaft of the pushing cylinder (46), and the cylinder body of the pushing cylinder (46) is installed on the mold tooling plate (1).

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