Longitudinal welding seam welding host machine for container cylinder

Abstract

The utility model relates to a container cylinder longitudinal seam welding main machine which comprises a vertical frame, a lifting lead screw assembly, a laser welding head, a fine adjustment platform and a longitudinal seam main machine frame, the vertical frame and the lifting lead screw assembly are arranged side by side, the output end of the lifting lead screw assembly is connected with the fine adjustment platform to drive the fine adjustment platform to move up and down, and the laser welding head is installed on the fine adjustment platform. A center seam is formed in the middle of the vertical frame in the vertical direction, a welding gun of the laser welding head penetrates through the center seam, the longitudinal seam main frame comprises a longitudinal frame body and a transverse moving platform, the longitudinal frame body is installed at the output end of the transverse moving platform, the transverse moving platform drives the longitudinal frame body to be close to or away from the vertical frame, and the longitudinal frame body is provided with an open groove corresponding to the center seam. The lifting lead screw assembly is used for driving the laser welding head to ascend and descend, a cylindrical workpiece is vertically welded, the fine adjustment platform can finely adjust the direction of the laser welding head and align to a workpiece welding seam, the longitudinal seam main machine frame is matched with the vertical frame to clamp the workpiece, the workpiece is kept stable, and the welding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of non-standard welding equipment, in particular to a main machine for welding the longitudinal weld of a container tube. Background Art

[0002] In aerospace engineering, when welding large-diameter, thin-walled cylinders, such as rocket bodies, the process typically involves butt-welding strips end-to-end to form short sections. These sections are then butted together sequentially for circumferential welding to create the final, larger cylinder. When welding short sections, longitudinal welding is required, resulting in long welds and demanding high-quality weld frontal appearance: no spatter, no perforations, no pores, no cracks, and no severe oxidation. This is currently difficult to achieve with manual welding. Furthermore, welding workpieces that are assembled into cylindrical sections requires the coordination of multiple personnel and auxiliary tooling from hoisting and alignment to completion, resulting in a complex process, low efficiency, and unstable welding quality. Utility Model Content

[0003] Based on this, it is necessary to provide a container barrel longitudinal weld welding host to address the above problems.

[0004] A main machine for welding the longitudinal weld of a container tube comprises a vertical frame, a lifting screw assembly, a laser welding head, a fine-tuning platform and a main machine frame for the longitudinal weld. The vertical frame and the lifting screw assembly are arranged side by side, and the output end of the lifting screw assembly is connected to the fine-tuning platform to drive the fine-tuning platform to move up and down. The laser welding head is installed on the fine-tuning platform. A center seam is provided in the middle of the vertical frame, and the welding gun of the laser welding head passes through the center seam. The main machine frame for the longitudinal weld comprises a vertical frame body and a transverse movement platform. The vertical frame body is installed on the output end of the transverse movement platform. The transverse movement platform drives the vertical frame body to approach or move away from the vertical frame, and the vertical frame body is provided with a slot corresponding to the center seam.

[0005] Preferably, a liquid cooling channel is embedded in the side of the vertical frame facing the longitudinal frame body.

[0006] Preferably, the lifting screw assembly includes a screw, a first motor, a drag plate and a guide rail frame, the two ends of the screw are movably connected to the guide rail frame, the first motor drives the screw to rotate, the drag plate is movably connected to the screw, the fine-tuning platform is installed on the drag plate, and a wire feeder is also provided on the drag plate.

[0007] Preferably, the edge of the carriage is provided with a travel guide wheel, and the travel guide wheel is movably abutted against the outer edge of the guide rail frame.

[0008] Preferably, a locking assembly is provided at the top of the vertical frame. The locking assembly includes a cylinder, a rotating frame, and a locking head. The fixed end of the cylinder is hinged to the side of the vertical frame. The rotating frame is movably installed at the top of the vertical frame through a bearing seat. The output end of the cylinder is connected to the end of the rotating frame to drive the rotating frame to rotate. The locking head is installed at the other end of the rotating frame. A protrusion is provided at the top of the longitudinal frame body, and the protrusion movably penetrates through the locking head.

[0009] Preferably, the locking assembly further includes an adjusting bolt and a stop plate. The adjusting bolt movably penetrates through the closed end of the locking head and is connected to the stop plate. The stop plate abuts against the protrusion.

[0010] The beneficial effects of the present utility model are as follows: The lifting screw rod assembly is used to drive the laser welding head to lift and displace, so as to perform vertical welding on the cylindrical workpiece. The fine-tuning platform can finely adjust the orientation of the laser welding head to align it with the workpiece weld. The longitudinal seam main frame cooperates with the vertical frame to clamp the workpiece, so that the workpiece remains stable, avoiding the workpiece from deflecting during welding and improving the welding accuracy. Description of the Drawings

[0011] Figure 1 Schematic three-dimensional view of a main machine for longitudinal weld welding of a container cylinder in one embodiment;

[0012] Figure 2 Explosion diagram of a main machine for longitudinal weld welding of a container cylinder. Detailed Embodiment

[0013] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0014] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0016] As Figures 1 to 2 shown, a main machine for welding longitudinal seams of a container cylinder includes a vertical frame 1, a lifting screw rod assembly 2, a laser welding head 3, a fine-tuning platform 4 and a longitudinal seam main frame 5. The vertical frame 1 and the lifting screw rod assembly 2 are arranged side by side. The output end of the lifting screw rod assembly 2 is connected to the fine-tuning platform 4 to drive the fine-tuning platform 4 to move up and down. The laser welding head 3 is installed on the fine-tuning platform 4. A middle seam 11 is arranged vertically in the middle of the vertical frame 1. The welding torch 31 of the laser welding head 3 penetrates through the middle seam 11. The longitudinal seam main frame 5 includes a longitudinal frame body 51 and a transverse moving platform 52. The longitudinal frame body 51 is installed on the output end of the transverse moving platform 52. The transverse moving platform 52 drives the longitudinal frame body 51 to approach or move away from the vertical frame 1. The longitudinal frame body 51 is provided with a slot 511 corresponding to the middle seam 11. Specifically, in this embodiment, the vertical frame 1 and the longitudinal seam main frame 5 are arranged side by side. During welding, a workpiece in the shape of a cylinder (not shown in the figure) is pre-spot welded and vertically placed between the vertical frame 1 and the longitudinal seam main frame 5 by means of hoisting, and the workpiece is rotated so that the position to be welded of the workpiece is aligned with the middle seam 11. At this time, the lifting screw rod assembly 2 can be started, and the lifting screw rod assembly 2 drives the laser welding head 3 to move up and down, so that the longitudinal welding of the cylindrical workpiece can be carried out to ensure that the structural strength of the weld reaches the standard. During welding, if the welding torch of the laser welding head 3 cannot be aligned with the weld, the operator can adjust the orientation of the welding torch through the fine-tuning platform 4 to make its initial position aligned with the weld. At the same time, it can be understood that during welding, the two sides of the workpiece weld need to be pressed tightly. We use the longitudinal frame body 51 and the vertical frame 1 to cooperate to press the workpiece. Copper alloy gaskets are inlaid on the adjacent sides of the longitudinal frame body 51 and the vertical frame 1 to ensure uniform pressure on the workpiece and the formation of the back of the weld. The longitudinal frame body 51 approaches or moves away from the vertical frame 1 through the transverse moving platform 52. It can be understood that when the welding is completed or the feeding is carried out, the transverse moving platform 52 drives the longitudinal frame body 51 to move away from the vertical frame 1 side. After the feeding is completed, the transverse moving platform 52 drives the longitudinal frame body 51 to move towards the vertical frame 1 side and clamp the workpiece to ensure the formation of the weld.

[0017] As Figures 1 to 2 shown, a liquid cooling channel 12 is buried on the side of the vertical frame 1 facing the longitudinal frame body 51. Specifically, the liquid cooling channel 12 is buried in the slot behind the copper alloy gasket for liquid cooling of the copper alloy inner lining to prevent local overheating of the welded workpiece and ensure the stability of the welding process without damaging the equipment.

[0018] As shown Figures 1 to 2 in the figure, the lifting lead screw assembly 2 includes a lead screw 21, a first motor 22, a carriage 23 and a guide rail frame 24. Both ends of the lead screw 21 are movably connected to the guide rail frame 24. The first motor 22 drives the lead screw 21 to rotate. The carriage 23 is movably connected to the lead screw 21. The fine adjustment platform 4 is installed on the carriage 23, and a wire feeder 6 is also arranged on the carriage 23. Specifically, the first motor 22 drives the lead screw 21 to rotate. When the lead screw rotates, the carriage 23 can move up and down along the guide rail frame 24. This is the prior art and will not be elaborated here. We mainly install a fine adjustment platform 4 on the carriage 23 to adjust the initial position of the welding torch of the laser welding head 3 to ensure the welding precision. At the same time, a wire feeder 6 is integrated on the carriage 23 to synchronously feed wire to the laser welding head 3. The two move synchronously to ensure that the welding wire will not be broken during wire feeding.

[0019] As shown Figures 1 to 2 in the figure, walking guide wheels 231 are arranged on the edge of the carriage 23. The walking guide wheels 231 are movably abutted against the outer edge of the guide rail frame 24. The walking guide wheels 231 play a guiding role to prevent the carriage 23 from running off track when moving on the guide rail frame 24.

[0020] As shown Figures 1 to 2 in the figure, a locking assembly 7 is provided at the top of the vertical frame 1. The locking assembly 7 includes a cylinder 71, a rotating frame 72 and a lock head 73. The fixed end of the cylinder 71 is hinged to the side of the vertical frame 1. The rotating frame 72 is movably installed at the top of the vertical frame 1 through a bearing seat. The output end of the cylinder 71 is connected to the end of the rotating frame 72 to drive the rotating frame 72 to rotate. The lock head 73 is installed at the other end of the rotating frame 72. A protrusion 512 is provided at the top of the longitudinal frame body 51. The protrusion 512 movably penetrates through the lock head 73. Specifically, the lock head 73 is in a U shape. The fixed end of the cylinder 71 is hinged to the side of the vertical frame 1, so that when the output end of the cylinder 71 expands and contracts to drive the rotating frame 72 to rotate, the cylinder 71 can also rotate and will not be stuck. The rotating frame 72 is movably installed at the top of the vertical frame 1 through a bearing seat. The rotating frame 72 is connected to the opening and closing end of the lock head 73. When it rotates, it can drive the lock head 73 to rotate. When the lock head 73 rotates to the horizontal position, the protrusion 512 can be inserted into the lock head 73, thereby connecting the longitudinal frame body 51 and the vertical frame 1, avoiding the upper end of the longitudinal frame body 51 and the vertical frame 1 from shaking due to vibration when the power sources such as motors are started because of their excessive height, resulting in a reduction in welding precision.

[0021] As shown Figures 1 to 2As shown, the locking component 7 further includes an adjusting bolt 74 and a stop plate 75. The adjusting bolt 74 movably penetrates through the closing end of the lock head 73 and is connected to the stop plate 75, and the stop plate 75 abuts against the protrusion 512. Specifically, by rotating the adjusting bolt 74, the stop plate 75 can be displaced within the U-shaped lock head 73, so that the stop plate 75 can abut against the protrusion 512, making the longitudinal frame body 51 and the vertical frame 1 more closely combined, ensuring that the clamping force on the workpiece meets the standard, and preventing the longitudinal frame body 51 from shaking.

[0022] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A longitudinal weld welding main machine for a container cylinder, characterized in that: It includes an upright frame, a lifting screw rod assembly, a laser welding head, a fine-tuning platform and a longitudinal seam main frame. The upright frame and the lifting screw rod assembly are arranged side by side. The output end of the lifting screw rod assembly is connected to the fine-tuning platform to drive the fine-tuning platform to move up and down. The laser welding head is installed on the fine-tuning platform. A middle seam is arranged vertically in the middle of the upright frame. The welding torch of the laser welding head penetrates through the middle seam. The longitudinal seam main frame includes a longitudinal frame body and a transverse moving platform. The longitudinal frame body is installed on the output end of the transverse moving platform. The transverse moving platform drives the longitudinal frame body to approach or move away from the upright frame. A slot is arranged on the longitudinal frame body corresponding to the middle seam.

2. The longitudinal weld welding main machine of a container cylinder according to claim 1, characterized in that: A liquid cooling channel is buried on the side of the upright frame facing the longitudinal frame body.

3. A longitudinal weld welding main machine for a container cylinder according to claim 1, wherein: The lifting screw rod assembly includes a screw rod, a first motor, a carriage and a guide rail frame. The two ends of the screw rod are movably connected to the guide rail frame. The first motor drives the screw rod to rotate. The carriage is movably connected to the screw rod. The fine-tuning platform is installed on the carriage. A wire feeder is also arranged on the carriage.

4. The longitudinal weld welding main machine of a container cylinder according to claim 3, characterized in that: Walking guide wheels are arranged on the edge of the carriage. The walking guide wheels are movably abutted against the outer edge of the guide rail frame.

5. The longitudinal weld welding main machine of a container cylinder according to claim 1, characterized in that: A locking assembly is provided at the top of the upright frame. The locking assembly includes a cylinder, a rotating frame and a lock head. The fixed end of the cylinder is hinged to the side of the upright frame. The rotating frame is movably installed on the top of the upright frame through a bearing seat. The output end of the cylinder is connected to the end of the rotating frame to drive the rotating frame to rotate. The lock head is installed at the other end of the rotating frame. A protrusion is provided at the top of the longitudinal frame body. The protrusion movably penetrates through the lock head.

6. The longitudinal weld welding main machine of a container cylinder according to claim 5, characterized in that: The locking assembly further includes an adjusting bolt and a stop plate. The adjusting bolt movably penetrates through the closed end of the lock head and is connected to the stop plate. The stop plate abuts against the protrusion.

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