Double-station profile welding equipment and method based on skylight machining

Abstract

The invention relates to the technical field of welding, and particularly discloses double-station profile welding equipment based on skylight machining, which comprises a base, a three-axis assembly mounted on the base and a welding head mounted at the end part of the three-axis assembly, and is characterized in that two groups of clamps are arranged below the welding head; the two sets of clamps are symmetrically arranged on the two sides below the welding head respectively, each set of clamp comprises two supporting plates arranged in a right-angle mode, and the extending length of the supporting plates is larger than the length of a profile. The adsorption piece adsorbs the L-shaped semi-finished products through the negative pressure cavity and the adsorption holes, the second motor drives the conveying belt to drive the semi-finished products to turn over by 180 degrees, so that the open ends of the two semi-finished products are accurately opposite, the first motor controls the bidirectional threaded rod to drive the movable columns to synchronously and oppositely move, and the splicing gap of the two L-shaped semi-finished products is controlled within the standard range; and a perfect butt joint foundation is provided for final welding, so that the production efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and in particular to a double-station profile welding device and method based on skylight processing. Background Art

[0002] The double-station profile welding equipment based on skylight processing is an automated welding device specially used for the manufacture of skylight frames. Its core design adopts a double-station layout, which realizes the synchronous operation of welding and loading and unloading through two independent working units. For example, when one side of the station is welding the skylight profile, the other side can simultaneously complete the clamping of the workpiece to be welded or the unloading of the finished product, which significantly reduces the idle time of the equipment and improves production efficiency. The equipment is usually equipped with a high-precision positioning system (such as a screw-slider mechanism) and an adaptive clamping component (such as a right-angle clamp with a rubber pad) to ensure stable fixation at the corners of the profile and avoid welding deformation. Some models also integrate medium-frequency welding power supplies or multi-spot welding head technology to achieve direct welding without bumps, reducing the sheet metal pretreatment process. Its advantage is that it optimizes the production rhythm through alternating operation modes, while taking into account welding quality and ease of operation. It is suitable for the efficient processing of skylight frame profiles such as aluminum alloys;

[0003] For example, the prior art announcement number CN115446505B discloses a U-shaped profile welding device. This technology mainly includes a frame, a conveying device, an alignment adjustment device, an end welding device, and a middle welding device. The conveying device is arranged on the frame, and two end welding devices are respectively arranged on both sides of the conveying device. The middle welding device is arranged in the middle of the conveying device, and the end welding device and the middle welding device are arranged in a straight line. Two adjustment unloading tables are respectively arranged on both sides of the conveying device, and the adjustment unloading tables are located in the feeding direction. Two adjustment clamping mechanisms are respectively arranged on the outside of the two adjustment unloading tables, and the adjustment clamping mechanisms are located in front of the end welding device. A discharge table is provided at the rear of the end welding device. The U-shaped profile welding equipment provided by this solution realizes an automated profile bending and welding process, greatly improving work efficiency.

[0004] The problem with the existing technology is that when facing the miniaturized profile welding processing, workers are usually required to first process two profiles into two L-shaped semi-finished products, and then weld the two L-shaped semi-finished products end to end into a complete frame. This usually requires workers to perform auxiliary docking on the two welded L-shaped semi-finished products to weld a complete finished product, and the production efficiency needs to be improved. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] The present invention provides a double-station profile welding device and method based on skylight processing, which can solve the problem of low efficiency of the existing technology. The specific solution is as follows:

[0007] On the one hand, the present invention provides a double-station profile welding device based on skylight processing, comprising a base, a three-axis assembly mounted on the base, a welding head mounted at the end of the three-axis assembly, a clamp disposed below the welding head, two sets of clamps provided, the two sets of clamps symmetrically disposed on both sides below the welding head, each set of clamps comprising two support plates disposed at right angles, the support plates extending longer than the length of the profile;

[0008] During welding, four profiles are placed on the support plates of two sets of fixtures respectively, and the ends of the two profiles on each set of fixtures are aligned. The displacement of the welding head is controlled by the three-axis assembly to weld the profiles at the welding position to form two L-shaped semi-finished products;

[0009] The two sets of fixtures are configured so that when the four profiles are placed in place, the welding profiles of the profiles on the two sets of fixtures are on the same axis.

[0010] Preferably, a flipping assembly is provided on one side of both sets of clamps, and the flipping assembly includes an adsorption component, which absorbs the L-shaped semi-finished product through negative pressure. The flipping assembly is used to flip the L-shaped semi-finished product. A driving assembly is provided at the bottom of the two flipping assemblies, and the driving assembly is used to drive the two flipping assemblies to move closer to or away from each other. The open ends of the two L-shaped semi-finished products are adjacent and close to each other through the flipping assembly and the driving assembly.

[0011] Preferably, a feed plate is provided between the two clamps, one end of the feed plate is hinged to the top of the base, and the two L-shaped semi-finished products are welded into finished products and placed on the feed plate, and then the feed plate is driven to rotate by a driving device to achieve the purpose of feeding.

[0012] Preferably, the driving assembly includes a threaded rod and a first motor. The threaded rod is rotatably mounted on the base. The output shaft of the first motor is connected to one end of the threaded rod. Movable columns are provided at both ends of the threaded rod. The bottoms of the two movable columns are threadedly connected to the threaded rod. The threads on the threaded rod are symmetrically arranged in two directions. The bottoms of the two movable columns are respectively matched with the threads in two directions. The flip assembly is configured on the movable column.

[0013] Preferably, the flipping assembly also includes a conveyor belt, which is installed on the top of the movable column. A through groove is opened in the middle of the movable column. The bottom of the conveyor belt passes through the through groove. A driving roller is also provided inside the through groove. The driving roller is rotatably installed inside the through groove. The end of the driving roller is connected to a second motor, which is fixedly installed on the outer wall of the movable column. The output shaft of the second motor is connected to one end of the driving roller.

[0014] Preferably, the clamp also includes a support seat, which is fixedly mounted on the base by bolts, and the adjacent ends of two vertically arranged support plates are fixedly connected to the middle of the support seat. A clamping plate is arranged above the support seat, and the clamping plate is connected to the top of the support seat through a first telescopic member.

[0015] Preferably, the shape of the adsorption piece matches the angle of the L-shaped semi-finished product and is set to a vertical shape. A negative pressure cavity is opened inside the adsorption piece, and the negative pressure cavity extends to both ends of the adsorption piece. A plurality of adsorption holes are opened at one end of the adsorption piece that fits the profile, and the plurality of adsorption holes are connected to the interior of the negative pressure cavity. A receiving groove is opened on the outer wall of the adsorption piece, and a negative pressure pump is fixedly installed inside the receiving groove, and the negative pressure port of the negative pressure pump is connected to the negative pressure cavity.

[0016] Preferably, a recess is provided at one end of the adsorption member close to the movable column, a third telescopic member is fixedly connected to the inside of the recess, and a fixed plate is fixedly connected to the other end of the third telescopic member. The fixed plate is fixed to the outer wall of the conveyor belt, and the fixed plate is made of soft material to adapt to the position change of the adsorption member on the conveyor belt.

[0017] Preferably, a sub-plate is further provided below the clamping plate, the cross-sectional shape of the sub-plate matches the cross-sectional shape of the profile edge boss, and the sub-plate is connected to the clamping plate via a second telescopic member.

[0018] On the other hand, the present invention provides a double-station profile welding method based on skylight processing, comprising the following steps:

[0019] S1. Profile Fixing and Welding: First, four profiles are cut into 45° angles. Two profiles are grouped together and placed parallel to the support plates of two sets of clamps. The clamping plates are lowered by the first telescopic member and adjusted with the second telescopic member of the sub-plate to press the edge of the profile to ensure stable alignment. The welding head moves along the x-axis under the control of the three-axis assembly to weld the ends of the profile to form two independent L-shaped semi-finished products (each semi-finished product represents one side of the skylight frame). The wire supply drum provides welding wire to support the continuous welding operation.

[0020] S2. Flipping and adsorption of semi-finished products: After welding is completed, the flipping assembly is activated. The negative pressure pump generates negative pressure in the negative pressure chamber of the adsorption component, adsorbing the L-shaped semi-finished product through the adsorption holes. The second motor drives the drive roller to rotate, driving the conveyor belt to rotate the adsorption component 180° through the groove, turning the open end of the L-shaped semi-finished product. The movable column supports the entire flipping process to ensure the stability of the adsorption component.

[0021] S3. Semi-finished product alignment: The drive assembly engages, and the first motor rotates the threaded rod. Due to the bidirectional thread design of the threaded rod, the two movable columns synchronously approach each other in the chute of the base. The slider at the bottom of the movable column prevents disengagement, and the T-shaped cross-section of the chute ensures linear motion. The conveyor belt of the flip assembly maintains the position of the semi-finished product, so that the open ends of the two L-shaped semi-finished products are adjacent and in contact, completing precise alignment;

[0022] S4. Finished product welding: After alignment, the welding head moves again, and the three-axis assembly controls it to move along the Y-axis to weld the two L-shaped semi-finished products at the joint position (i.e., the end-to-end connection) to form a complete rectangular finished skylight frame. The wire drum continuously supplies welding wire to ensure welding strength.

[0023] S5. Finished product output: The welded skylight frame is moved to the feed plate. The driving device (a servo motor in this embodiment) drives the hinged plate to rotate around the hinged seat, causing the feed plate to tilt. The finished frame automatically slides down and is output, thus realizing feeding. The entire process, from fixing and welding to flipping and alignment, is automatically controlled by the equipment, which significantly improves production efficiency and product consistency.

[0024] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0025] 1. The present invention utilizes two sets of fixtures with symmetrically arranged support plates. Each set of fixtures can simultaneously secure two profiles cut at a 45° angle. The composite clamping structure of the clamping plate and the auxiliary plate ensures precise alignment of the profiles. The welding head can complete the welding of two sets of L-shaped semi-finished products in one operation. This design enables parallel processing, reduces the waiting time of traditional single-station welding, and improves the initial welding efficiency of the skylight frame. The extended support plate design accommodates profiles of different sizes, enhancing the versatility of the equipment.

[0026] 2. The present invention uses a three-axis assembly to drive the welding head to move freely along the x-, y-, and z-axes. Combined with the synchronous supply of welding wire from the wire supply drum, it can cover welding paths at any angle. For example, when welding L-shaped semi-finished products, the three-axis assembly can accurately control the movement of the welding head along the x-axis to complete a straight weld. In the subsequent frame welding stage, it can switch to y-axis movement to process vertical butt joints. This design breaks through the limitations of a fixed welding gun and not only accommodates 45° bevel joints of profiles, but can also handle complex three-dimensional welds, greatly improving welding quality and consistency.

[0027] 3. The adsorption part of the present invention adsorbs the L-shaped semi-finished product through the negative pressure chamber and the adsorption hole. The second motor drives the conveyor belt to drive the semi-finished product to flip 180 degrees, so that the open ends of the two semi-finished products are precisely facing each other. In the drive assembly, the first motor controls the bidirectional threaded rod to drive the movable column to move toward each other synchronously, and the T-shaped slide structure is used to ensure the smoothness of movement. This process is fully automated, replacing manual handling and positioning, which not only avoids the risk of deformation of the semi-finished product, but also controls the splicing gap of the two L-shaped semi-finished products within the standard range, providing a perfect docking foundation for the final welding, thereby greatly improving production efficiency.

[0028] 4. The sub-plate of the present invention independently adjusts the height and angle through the second telescopic part, so that its cross-sectional contour is completely fitted with the edge boss of the profile. The clamping plate applies vertical pressure through the first telescopic part, and the two form a three-dimensional clamping force field. When there is a slight dimensional error in the profile, the sub-plate can adaptively compensate for the deformation to prevent displacement caused by welding vibration. The groove in the middle of the support seat reserves avoidance space for the flip assembly to avoid interference. This design is particularly suitable for thin-walled or special-shaped profiles, eliminating welding deformation from the source and ensuring the right-angle accuracy of the finished frame.

[0029] 5. The feed plate of the present invention is connected to the rotating pair of the hinged seat through a hinged plate. After welding is completed, it is driven by a servo motor to tilt, so that the finished skylight frame automatically slides out along the inclined surface. The mechanism is seamlessly connected with the welding station, and the finished product falls directly onto the feed plate without the need for secondary handling. The tilt angle is adjustable to accommodate the smooth sliding of frames of different sizes. Combined with double-station welding, automatic flipping and welding processes, the feed plate completes the final link from processing to output, forming a fully enclosed production line, significantly reducing manual handling costs and avoiding scratches on the surface of the finished product.

[0030] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0032] Figure 1 It is an overall three-dimensional diagram of the present invention;

[0033] Figure 2 This is a perspective view of the present invention without the flip assembly;

[0034] Figure 3 is a three-dimensional diagram of two sets of clamps of the present invention;

[0035] Figure 4 is a perspective view of the other side of the two sets of clamps of the present invention;

[0036] Figure 5 It is a partial three-dimensional diagram of a single set of clamps of the present invention;

[0037] Figure 6 A perspective view of the flip assembly and profile of the present invention;

[0038] Figure 7 is a perspective view of the drive assembly of the present invention;

[0039] Figure 8 is a three-dimensional diagram of the adsorption element of the present invention;

[0040] Figure 9 This is an exploded view of a portion of the structure of the flip assembly of the present invention;

[0041] Figure 10 is a cross-sectional view of the adsorption element of the present invention;

[0042] Figure 11 This is a schematic diagram of adjacent states of L-shaped semi-finished products of the present invention;

[0043] Figure 12 This is a schematic diagram of the welding state of the finished product of the present invention.

[0044] The accompanying drawings are numerals as follows:

[0045] 1. Base; 2. Three-axis assembly; 3. Welding head; 4. Support plate; 5. Profile; 6. Wire supply drum; 7. Support seat; 8. Clamping plate; 9. First telescopic member; 10. Sub-plate; 11. Second telescopic member; 12. Groove; 13. Adsorption member; 14. Threaded rod; 15. First motor; 16. Movable column; 17. Conveyor belt; 18. Driving roller; 19. Second motor; 20. Passing slot; 21. Negative pressure chamber; 22. Adsorption hole; 23. Accommodating slot; 24. Negative pressure pump; 25. Third telescopic member; 26. Fixed plate; 27. Feed plate; 28. Hinge plate; 29. ​​Hinge seat. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0047] Example 1: Figure 1 、 Figure 2 As shown, this embodiment provides a double-station profile welding device based on skylight processing, including a base 1, a three-axis component 2 is installed on the base 1, and a welding head 3 is installed at the end of the three-axis component 2. Figure 1 As shown, the three-axis component 2 is the x-axis in the horizontal direction, the y-axis in the longitudinal direction, and the z-axis in the vertical direction. The three-axis component 2 can drive the welding head 3 to move along the x-axis, y-axis and z-axis, thereby improving the flexibility of welding. A clamp is provided below the welding head 3. There are two groups of clamps. The two groups of clamps are symmetrically arranged on both sides below the welding head 3. Each group of clamps includes two support plates 4 arranged at right angles. The extended length of the support plate 4 is greater than the length of the profile 5 to be welded (the profile 5 is cut into a 45° angle at both ends by a cutting device before welding. The entire profile 5 is arranged in an isosceles trapezoid, which facilitates the welding of four profiles 5 to form a rectangular skylight frame); a wire supply drum 6 is also provided on one side of the welding head 3, and welding wire is arranged inside the wire supply drum 6.

[0048] During welding, the four profiles 5 are placed on the support plates 4 of the two sets of clamps respectively, and the ends of the two profiles 5 on each set of clamps are aligned. The displacement of the welding head 3 is controlled by the three-axis assembly 2, and the welding position of the profile 5 is welded to form two L-shaped semi-finished products. The L-shaped semi-finished products are two adjacent sides of the skylight frame. By welding the two L-shaped semi-finished products end to end, a finished skylight frame can be formed.

[0049] The two sets of clamps are configured such that when the four profiles 5 are placed in place, the welding profiles of the profiles 5 on the two sets of clamps are on the same axis. In this embodiment, the welding profile is parallel to the x-axis of the three-axis assembly 2.

[0050] like Figure 3 、 Figure 4 、 Figure 5 As shown, as a possible embodiment, the clamp also includes a support seat 7, which is fixedly installed on the base 1 by bolts, and the adjacent ends of two vertically arranged support plates 4 are fixedly connected to the middle of the support seat 7. A clamping plate 8 is provided above the support seat 7, and the clamping plate 8 is connected to the top of the support seat 7 through a first telescopic member 9. When the first telescopic member 9 drives the clamping plate 8 to descend, the distance between the clamping plate 8 and the support plate 4 is reduced, thereby clamping the profile 5 on the support plate 4. In order to adapt to the boss shape of the edge of the profile 5, a sub-plate 10 is also provided below the clamping plate 8. The cross-sectional shape of the sub-plate 10 matches the cross-sectional shape of the boss on the edge of the profile 5, and the sub-plate 10 is connected to the clamping plate 8 through a second telescopic member 11; a groove 12 is provided in the middle of the support seat 7, and the groove 12 is used to avoid the flip assembly and drive assembly below.

[0051] like Figure 6As shown, a flipping assembly is provided on one side of each set of clamps, and the flipping assembly includes an adsorption component 13, which absorbs the L-shaped semi-finished product through negative pressure. The flipping assembly is used to flip the L-shaped semi-finished product. A driving assembly is provided at the bottom of the two flipping assemblies, and the driving assembly is used to drive the two flipping assemblies to move closer to or away from each other. The open ends of the two L-shaped semi-finished products are adjacent and close to each other through the flipping assembly and the driving assembly.

[0052] like Figure 7 As shown, the driving assembly includes a threaded rod 14 and a first motor 15. The threaded rod 14 is rotatably mounted on the base 1. The output shaft of the first motor 15 is connected to one end of the threaded rod 14. Movable columns 16 are provided at both ends of the threaded rod 14. The bottoms of the two movable columns 16 are threadedly connected to the threaded rod 14. The threads on the threaded rod 14 are symmetrically arranged in two directions. The bottoms of the two movable columns 16 are respectively matched with the threads in two directions. The flip assembly is configured on the movable column 16.

[0053] A slider is provided at the bottom of the movable column 16, and a slide groove matching the slider is opened at the top of the base 1. The slider at the bottom of the movable column 16 is slidably connected to the slide groove at the top of the base 1, and the cross-sectional shape of the slider and the slide groove is T-shaped, so that the movable column 16 will not be separated from the slide groove, and the slide groove is set in a long strip, and the two ends of the threaded rod 14 are rotatably connected to the two ends of the inner wall of the slide groove through bearings.

[0054] like Figure 8 、 Figure 9As shown, the flip assembly also includes a conveyor belt 17, which is installed on the top of the movable column 16. A through slot 20 is provided in the middle of the movable column 16. The bottom of the conveyor belt 17 passes through the through slot 20. A driving roller 18 is also provided inside the through slot 20. The driving roller 18 is rotatably installed inside the through slot 20. The end of the driving roller 18 is connected to a second motor 19, which is fixedly installed on the outer wall of the movable column 16. The output shaft of the second motor 19 is connected to one end of the driving roller 18, so that the driving roller 18 can be driven to rotate by the second motor 19, and then the conveyor belt 17 is driven to operate. In order to adapt to the operation of the conveyor belt 17, a semicircular transition is provided at the top of the movable column 16, so that the top of the conveyor belt 17 can be closely attached to the top of the movable column 16, and the adsorption member 13 is fixed on the conveyor belt 17, so that when the conveyor belt 17 is running, the adsorption part 13 can run synchronously with the operation of the conveyor belt 17, and after the conveyor belt 17 runs a certain distance, the adsorption part 13 can run from one side of the conveyor belt 17 to the other side, so that the adsorption part 13 and the profile 5 can be turned over, and finally the first motor 15 on the driving assembly drives the threaded rod 14 to rotate, driving the two movable columns 16 to approach each other, so that the adsorption part 13 and the profile 5 are close to each other, and the two profiles 5 (L-shaped semi-finished products) are close to each other until the two L-shaped semi-finished products are connected end to end, and then the three-axis assembly 2 drives the welding head 3 to move along the y-axis, so that the connecting positions of the two L-shaped semi-finished products are welded, thereby processing and forming the final product of the skylight frame.

[0055] like Figure 10 As shown, the adsorption part 13 is specifically configured as follows: the shape of the adsorption part 13 matches the angle of the L-shaped semi-finished product, and is set to a vertical shape. A negative pressure cavity 21 is opened inside the adsorption part 13, and the negative pressure cavity 21 extends to both ends of the adsorption part 13. A plurality of adsorption holes 22 are opened at one end of the adsorption part 13 that is in contact with the profile 5, and the plurality of adsorption holes 22 are connected with the interior of the negative pressure cavity 21. A receiving groove 23 is opened on the outer wall of the adsorption part 13, and a negative pressure pump 24 is fixedly installed inside the receiving groove 23. The negative pressure port of the negative pressure pump 24 is connected with the negative pressure cavity 21. By starting the negative pressure pump 24, negative pressure can be formed inside the negative pressure cavity 21 and the adsorption holes 22.

[0056] A recess is provided at one end of the adsorption member 13 close to the movable column 16, and a third telescopic member 25 is fixedly connected to the inside of the recess. The other end of the third telescopic member 25 is fixedly connected to a fixed plate 26, which is fixed to the outer wall of the conveyor belt 17. The fixed plate 26 is made of soft material to adapt to the position change of the adsorption member 13 on the conveyor belt 17. The specific material of the fixed plate 26 can be rubber or plastic.

[0057] like Figure 11 、 Figure 12As shown, after the four profiles 5 are welded into L-shaped semi-finished products, the two L-shaped semi-finished products are flipped respectively by the flipping assembly so that the head and tail of the two L-shaped semi-finished products are arranged adjacent to each other, and then the two flipping assemblies are driven to approach each other by the driving assembly so that the head and tail of the two L-shaped semi-finished products are in contact with each other, and then the three-axis assembly 2 is controlled to control the welding head 3 to weld the connecting position of the two L-shaped semi-finished products to form the final skylight frame product.

[0058] like Figure 1 As shown, a feed plate 27 is provided between the two clamps, and one end of the feed plate 27 is hinged to the hinge seat 29 on the top of the base 1 through a hinge plate 28. The two L-shaped semi-finished products are welded into finished products and placed on the feed plate 27. The feed plate 27 is then driven to rotate by a driving device to achieve the purpose of feeding. It should be noted that the driving device can be a servo motor, which drives the hinge plate 28 and the feed plate 27 to rotate through the servo motor to form an inclined angle, so that the finished skylight frame can slide down, thereby playing the role of feeding.

[0059] Embodiment 2: This embodiment differs from the embodiment 1 in that it provides a double-station profile welding method based on skylight processing, comprising the following steps:

[0060] S1. Profile Fixing and Welding: First, four profiles 5 are cut into 45° angles, grouped in pairs, and placed parallel to the support plates 4 of two sets of clamps. The clamping plate 8 is lowered by the first telescopic member 9 and adjusted with the second telescopic member 11 of the sub-plate 10 to press the edge bosses of the profiles 5 to ensure stable alignment. The welding head 3 moves along the x-axis under the control of the three-axis assembly 2 to weld the ends of the profiles 5 to form two independent L-shaped semi-finished products (each semi-finished product represents a side of the skylight frame). The wire supply drum 6 provides welding wire to support the continuous welding operation.

[0061] S2. Turning and adsorbing the semi-finished product: After welding is completed, the turning assembly is activated. The negative pressure pump 24 generates negative pressure in the negative pressure chamber 21 of the adsorption member 13, adsorbing the L-shaped semi-finished product through the adsorption holes 22. The second motor 19 drives the drive roller 18 to rotate, driving the conveyor belt 17 to rotate the adsorption member 13 180° through the groove 20, turning the open end of the L-shaped semi-finished product. The movable column 16 supports the entire turning process to ensure the stability of the adsorption member 13.

[0062] S3. Semi-finished product alignment: The drive assembly intervenes, and the first motor 15 drives the threaded rod 14 to rotate. Due to the bidirectional thread design of the threaded rod 14, the two movable columns 16 synchronously approach each other in the chute of the base 1. The slider at the bottom of the movable columns 16 prevents them from disengaging, and the T-shaped cross-section of the chute ensures linear motion. The conveyor belt 17 of the flip assembly maintains the position of the semi-finished products, so that the open ends of the two L-shaped semi-finished products are adjacent to each other, completing precise alignment;

[0063] S4. Finished product welding: After alignment, the welding head 3 moves again, and the three-axis assembly 2 controls it to move along the y-axis to weld the two L-shaped semi-finished products at the connection position (i.e., the end-to-end connection) to form a complete rectangular finished skylight frame. The wire supply drum 6 continuously supplies welding wire to ensure welding strength;

[0064] S5. Finished product output: The welded skylight frame is moved to the feed plate 27. The driving device (a servo motor in this embodiment) drives the hinge plate 28 to rotate around the hinge seat 29, causing the feed plate 27 to tilt. The finished frame automatically slides down and is output, thus realizing feeding. The entire process, from fixing and welding to flipping and alignment, is automatically controlled by the equipment, which significantly improves production efficiency and product consistency.

[0065] In summary, the present invention arranges the support plates 4 of the two sets of clamps symmetrically. Each set of clamps can simultaneously fix two profiles 5 cut into a 45° angle. The composite clamping structure of the clamping plate 8 and the auxiliary plate 10 ensures that the profiles 5 are accurately aligned. The welding head 3 can complete the welding of two sets of L-shaped semi-finished products in one operation. This design realizes parallel processing, reduces the waiting time of traditional single-station welding, and improves the initial welding efficiency of the skylight frame. The lengthened design of the support plate 4 adapts to profiles 5 of different sizes and enhances the versatility of the equipment. The welding head 3 is driven by the three-axis assembly 2 to move freely along the x, y, and z axes. Combined with the synchronous supply of welding wire by the wire supply drum 6, it can cover welding paths of any angle. For example, when welding an L-shaped semi-finished product, the three-axis assembly 2 can accurately control the movement of the welding head 3 along the x-axis to complete a straight weld; in the subsequent frame welding stage, it can be switched to the y-axis movement to process the vertical butt joint. This design breaks through the limitations of a fixed welding gun, not only adapting to the 45° bevel joint of the profile 5, but also processing complex three-dimensional welds, greatly improving the welding quality and consistency; the adsorption part 13 adsorbs the L-shaped semi-finished product through the negative pressure chamber 21 and the adsorption hole 22, and the second motor 19 drives the conveyor belt 17 to drive the semi-finished product to flip 180°, so that the open ends of the two semi-finished products are precisely facing each other. In the drive assembly, the first motor 15 controls the bidirectional threaded rod 14 to drive the movable column 16 synchronously The T-shaped slide structure is used to ensure the smooth movement of the profile 5. This process is fully automated, replacing manual handling and positioning. It not only avoids the risk of deformation of the semi-finished product, but also controls the splicing gap of the two L-shaped semi-finished products within the standard range, providing a perfect docking basis for the final welding; the sub-plate 10 independently adjusts the height and angle through the second telescopic member 11, so that its cross-sectional profile is completely fitted with the edge boss of the profile 5, and the clamping plate 8 applies vertical pressure through the first telescopic member 9. The two form a three-dimensional clamping force field. When there is a slight dimensional error in the profile 5, the sub-plate 10 can adaptively compensate for the deformation to prevent displacement caused by welding vibration. The groove 12 in the middle of the support seat 7 reserves avoidance space for the flip component. , to avoid interference. This design is especially suitable for thin-walled or special-shaped profiles 5, eliminating welding deformation from the source and ensuring the right-angle accuracy of the finished frame; the feed plate 27 is connected to the rotating pair of the hinged plate 28 and the hinged seat 29. After welding is completed, it is driven by a servo motor to tilt, so that the finished skylight frame automatically slides out along the inclined surface. This mechanism is seamlessly connected with the welding station, and the finished product falls directly onto the feed plate 27 without the need for secondary handling. The tilt angle is adjustable to adapt to the smooth sliding of frames of different sizes. Combined with double-station welding, automatic flipping and welding processes, the feed plate 27 completes the final link from processing to output, forming a fully enclosed production line, significantly reducing manual handling costs and avoiding scratches on the surface of the finished product.

[0066] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0067] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0068] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0069] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A double-station profile welding device for skylight processing, comprising a base, a three-axis assembly mounted on the base, and a welding head mounted at the end of the three-axis assembly, characterized in that: A clamp is provided below the welding head. There are two sets of clamps, which are symmetrically arranged on both sides below the welding head. Each set of clamps includes two support plates arranged at right angles. The length of the support plates is greater than the length of the profile. During welding, four profiles are placed on the support plates of two sets of fixtures respectively, and the ends of the two profiles on each set of fixtures are aligned. The displacement of the welding head is controlled by the three-axis assembly to weld the profiles at the welding position to form two L-shaped semi-finished products; The two sets of fixtures are configured so that when the four profiles are placed in place, the welding profiles of the profiles on the two sets of fixtures are on the same axis.

2. The double-station profile welding equipment for skylight processing according to claim 1, characterized in that: A flipping assembly is provided on one side of each set of clamps. The flipping assembly includes an adsorption part, which absorbs the L-shaped semi-finished product through negative pressure. The flipping assembly is used to flip the L-shaped semi-finished product. A driving assembly is provided at the bottom of the two flipping assemblies. The driving assembly is used to drive the two flipping assemblies to move closer to or away from each other. Through the flipping assembly and the driving assembly, the open ends of the two L-shaped semi-finished products are adjacent and close to each other.

3. The double-station profile welding equipment for skylight processing according to claim 1, characterized in that: A feeding plate is set between the two clamps, one end of which is hinged to the top of the base. After the two L-shaped semi-finished products are welded into finished products, they are placed on the feeding plate, and then the feeding plate is driven to rotate by the driving device to achieve the purpose of feeding.

4. The double-station profile welding equipment for skylight processing according to claim 2, characterized in that: The driving assembly includes a threaded rod and a first motor. The threaded rod is rotatably mounted on the base. The output shaft of the first motor is connected to one end of the threaded rod. Movable columns are provided at both ends of the threaded rod. The bottoms of the two movable columns are threadedly connected to the threaded rod. The threads on the threaded rod are symmetrically arranged in two directions. The bottoms of the two movable columns are respectively matched with the threads in two directions. The flip assembly is configured on the movable column.

5. The double-station profile welding equipment for skylight processing according to claim 2, characterized in that: The flipping assembly also includes a conveyor belt, which is installed on the top of the movable column. A through groove is opened in the middle of the movable column. The bottom of the conveyor belt passes through the through groove. A driving roller is also provided inside the through groove. The driving roller is rotatably installed inside the through groove. The end of the driving roller is connected to a second motor, and the second motor is fixedly installed on the outer wall of the movable column. The output shaft of the second motor is connected to one end of the driving roller.

6. The double-station profile welding equipment for skylight processing according to claim 1, characterized in that: The clamp also includes a support seat, which is fixed to the base by bolts. The adjacent ends of two vertically arranged support plates are fixedly connected to the middle of the support seat. A clamping plate is arranged above the support seat, and the clamping plate is connected to the top of the support seat through a first telescopic member.

7. The double-station profile welding equipment for skylight processing according to claim 2, characterized in that: The shape of the adsorption piece matches the angle of the L-shaped semi-finished product and is set to a vertical shape. A negative pressure cavity is opened inside the adsorption piece, and the negative pressure cavity extends to both ends of the adsorption piece. A number of adsorption holes are opened at one end of the adsorption piece that fits the profile, and the several adsorption holes are connected to the interior of the negative pressure cavity. A receiving groove is opened on the outer wall of the adsorption piece, and a negative pressure pump is fixedly installed inside the receiving groove, and the negative pressure port of the negative pressure pump is connected to the negative pressure cavity.

8. The double-station profile welding equipment for skylight processing according to claim 2, characterized in that: A recess is provided at one end of the adsorption member close to the movable column, and a third telescopic member is fixedly connected to the inside of the recess. The other end of the third telescopic member is fixedly connected to a fixed plate, which is fixed to the outer wall of the conveyor belt. The fixed plate is made of soft material to adapt to the position change of the adsorption member on the conveyor belt.

9. The double-station profile welding equipment for skylight processing according to claim 6, characterized in that: A sub-plate is further provided below the clamping plate. The cross-sectional shape of the sub-plate matches the cross-sectional shape of the profile edge boss. The sub-plate is connected to the clamping plate via a second telescopic member.

10. A double-station profile welding method based on skylight processing, using the double-station profile welding equipment based on skylight processing according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Place four profiles on the support plates of two sets of fixtures, with two profiles placed in each set of fixtures; S2. Align the ends of the two profiles on each set of fixtures; S3. Controlling the displacement of the welding head by the three-axis assembly to weld the welding position of the profile, thereby forming two L-shaped semi-finished products; Among them, after S2 and S3 are completed, the welding profiles of the profiles on the two sets of fixtures are on the same axis.

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