Automatic pipe fitting double-head patting sealing piece welding equipment and method

Abstract

The invention relates to the technical field of pipe fitting welding, in particular to automatic pipe fitting double-head patting and sealing piece welding equipment and method.The equipment comprises a first clamping assembly and a second clamping assembly which are arranged along a feeding straight line; the first clamping assembly and the second clamping assembly can slide freely. The first clamping assembly and the second clamping assembly each comprise at least two clamping devices which are used for clamping pipe fittings. The feeding assembly is used for feeding the pipe fittings according to the sequence of being located on one side of the equipment, located on the first clamping assembly, located on the second clamping assembly and located on the other side of the equipment; the punch assemblies and the feeding assemblies are arranged on the two sides of the first clamping assembly correspondingly. Each punch assembly slides close to and away from the first clamping assembly; each feeding assembly is used for conveying a sealing sheet to the punch assembly; welders and moving mechanisms are arranged on the two sides of the second clamping assembly; and each moving mechanism is used for driving one corresponding welder to move. The manufacturing efficiency and the manufacturing quality of the sealing pipe fitting can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of pipe welding technology, and in particular to an automated pipe fitting double-head sealing plate welding device and method. Background Technology

[0002] Double-ended pipe fittings with end caps are frequently used in furniture such as tables and chairs. These end caps have threaded holes and other structures for connecting the pipe to other components. To prevent the end caps from falling off, they are usually welded directly to the pipe fitting. Furthermore, to avoid gaps between the end cap and the pipe fitting, the end cap is typically pressed tightly against the inner wall of the fitting, requiring a press-fitting tool to force it into place. In existing end cap pipe fitting manufacturing processes, these two steps are performed manually and are independent of each other. Therefore, equipment recalibration is necessary each time processing begins, resulting in relatively low production efficiency and quality. Summary of the Invention

[0003] This invention provides an automated pipe fitting double-head sealing plate welding device and method, which can effectively solve the problems of low efficiency and low quality of existing manufacturing processes mentioned in the background art.

[0004] This invention provides an automated pipe fitting double-head sealing plate welding device, comprising: A first clamping assembly and a second clamping assembly are arranged along the feeding line; both the first clamping assembly and the second clamping assembly can slide freely in the direction perpendicular to the feeding line. Both the first clamping assembly and the second clamping assembly include at least two clamps for clamping the pipe fitting; multiple clamps within the same assembly are distributed along the direction perpendicular to the feeding line; The feeding assembly is used to feed the pipe fittings in the following order: located on one side of the equipment, located on the first clamping assembly, located on the second clamping assembly, and located on the other side of the equipment. Both sides of the first clamping assembly are equipped with punch assemblies and feeding assemblies; Each punch assembly slides closer to and further away from the first clamping assembly; Each feeding assembly is used to feed the sealing sheet to the punch assembly; The second clamping assembly is equipped with a welder and a moving mechanism on both sides; Each moving mechanism is used to move a corresponding welding machine.

[0005] Furthermore, the gripper includes: The clamping base can slide freely in the direction perpendicular to the feeding line; A fixed clamping plate is fixedly mounted on the clamping base; The sliding clamping plate slides on the clamping base, moving closer to and away from the fixed clamping plate.

[0006] Furthermore, the gripper also includes a jaw; the jaw has an arc-shaped cross-section and its central axis is perpendicular to the feeding line; the sliding clamping plate is provided with an extension section extending toward the fixed clamping plate, the arc-shaped middle section of the jaw is hinged to the extension section of the sliding clamping plate, and the hinge axis is parallel to the central axis of the jaw.

[0007] Furthermore, flexible clamping blocks are provided at both ends of the claw's arc shape.

[0008] Furthermore, each punch assembly includes: The punch seat slides closer to and further away from the first clamping component; The flip plate is hinged to the punch seat at the top. The connecting rod is fixedly connected at one end to the pivot of the flip plate, and the other end is provided with a groove extending along its own length. The drive plate slides up and down on the punch seat; a pin is fixedly installed on the top of the drive plate, and the pin extends into the slide groove; The adsorption mechanism, located on the flip plate, is used to adsorb and seal the film.

[0009] Furthermore, the adsorption mechanism includes: The suction holder slides towards and away from the flip plate. The adsorption head, fixed on the adsorption base, is used to adsorb and seal the film; A spring is positioned between the suction base and the flip plate.

[0010] Furthermore, each feeding component includes: The feeding rack is fixedly installed above the punch assembly; the feeding rack is equipped with an inlet and an outlet connected by a connecting channel; A sealing material trough is located at the inlet; The pusher block slides within the connecting channel to push the sealing sheet from the inlet to the outlet.

[0011] Furthermore, the feeding assembly includes: The lifting beam moves up and down on top of the first clamping assembly and the second clamping assembly; The transverse beam slides along the feeding line on the lifting beam; the transverse beam has at least three equally spaced grippers, and two of the grippers are respectively aligned with the first gripping assembly and the second gripping assembly.

[0012] Furthermore, the multiple grippers in the first clamping assembly are slidably connected to each other; the multiple grippers in the second clamping assembly are fixedly connected to each other.

[0013] This invention also provides an automated method for welding double-ended sealing plates for pipe fittings, using the automated double-ended sealing plate welding equipment described above, the steps of which include: The pipe fitting is fed to one side of the equipment, and the feeding assembly feeds the pipe fitting onto the first clamping assembly; during feeding, the loading assembly feeds the sealing plate onto the punch assembly; The clamping device of the first clamping assembly clamps the pipe fitting, and then the two punch assemblies on both sides move toward the pipe fitting to insert the sealing strip into both ends of the pipe fitting. Then the two punch assemblies on both sides move away from the pipe fitting, and the clamping device of the first clamping assembly releases the pipe fitting. The feeding assembly delivers the pipe fitting to the second clamping assembly; The clamping device of the second clamping assembly clamps the pipe fitting, and the moving mechanism drives the welder to weld the gap between the sealing plate and the pipe fitting. After the welding is completed, the moving mechanism drives the welder away from the pipe fitting, and the clamping device of the second clamping assembly releases the pipe fitting. The feeding assembly delivers the pipe to the other side of the equipment, allowing the pipe to leave the equipment and complete the welding process.

[0014] The technical solution of this invention can achieve the following technical effects: This equipment combines the two processes of pressing and welding the sealing plate, and effectively solves the problem of limiting the position of the pipe end in the two processes through the free sliding first and second clamping components. This allows all pipe positions to quickly reach consistency through the pressing and sealing plate process, eliminating the need to search for the pipe end in the welding and sealing plate process. This enables rapid welding and effectively improves production efficiency and quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of an automated double-head sealing plate welding equipment for pipe fittings; Figure 2 A top view of an automated pipe fitting double-head sealing plate welding equipment; Figure 3 Side view of an automated pipe fitting double-head sealing plate welding machine; Figure 4 This is a schematic diagram of the clamp's structure; Figure 5 A side view of the pipe fitting being clamped by the clamp; Figure 6 This is a schematic diagram of the punch assembly when the flipping plate flips downwards; Figure 7 This is a side view of the punch assembly when the flip plate is flipped downwards; Figure 8 This is a schematic diagram of the punch assembly when the flipping plate flips upwards; Figure 9 This is a side view of the punch assembly when the flip plate is flipped upwards; Figure 10 This is a schematic diagram of the feeding assembly. Figure 11 This is a cross-sectional view of the feeding assembly; Figure 12 This is a schematic diagram of the feeding assembly.

[0017] Reference numerals: 1. First clamping assembly; 2. Second clamping assembly; 3. Clamper; 31. Clamping base; 32. Fixed clamping plate; 33. Sliding clamping plate; 34. Claw; 35. Flexible clamping block; 4. Feeding assembly; 41. Lifting beam; 42. Transverse beam; 43. Claw; 5. Punch assembly; 51. Punch seat; 52. Tilting plate; 53. Connecting rod; 54. Driving plate; 55. Adsorption seat; 56. Adsorption head; 57. Spring; 6. Feeding assembly; 61. Feeding rack; 611. Connecting channel; 612. Inlet; 613. Outlet; 62. Sealing plate trough; 63. Push block; 7. Welder; 8. Moving mechanism. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] This invention relates to an automated pipe fitting double-head sealing plate welding device, such as... Figures 1-3 As shown, it includes: The first clamping assembly 1 and the second clamping assembly 2 are arranged along the feeding line, which is the straight line in which the pipe material moves within the equipment; both the first clamping assembly 1 and the second clamping assembly 2 can slide freely in the direction perpendicular to the feeding line. The first clamping assembly 1 and the second clamping assembly 2 each include at least two clamps 3 for clamping the pipe fittings; the multiple clamps 3 in the same assembly are distributed along the vertical direction of the feeding line. The feeding assembly 4 is used to feed the pipe fittings in the following order: located on one side of the equipment, located on the first clamping assembly 1, located on the second clamping assembly 2, and on the other side of the equipment. Punch assembly 5 and feeding assembly 6 are provided on both sides of the first clamping assembly 1; Each punch assembly 5 slides closer to and further away from the first clamping assembly 1; Each feeding assembly 6 is used to feed the sealing sheet to the punch assembly 5; The second clamping assembly 2 is equipped with a welder 7 and a moving mechanism 8 on both sides; Each moving mechanism 8 is a multi-axis robotic arm structure used to drive a corresponding welding device 7 to move up, down, left, right, forward, and backward.

[0021] Corresponding to the aforementioned automated pipe fitting double-head sealing plate welding equipment, the present invention provides the following automated pipe fitting double-head sealing plate welding method, the steps of which include: The pipe fittings to be processed are first fed to one side of the equipment by an external conveying mechanism, with the length direction of the pipe fittings perpendicular to the feeding line; then the feeding assembly 4 feeds the pipe fittings to the first clamping assembly 1; during feeding, the loading assembly 6 feeds the sealing plate to the punch assembly 5. The clamp 3 of the first clamping assembly 1 clamps the pipe fitting, and then the two punch assemblies 5 on both sides move toward the pipe fitting to press the sealing plate into both ends of the pipe fitting. Then the two punch assemblies 5 on both sides move away from the pipe fitting, and the clamp 3 of the first clamping assembly 1 releases the pipe fitting. The feeding assembly 4 feeds the pipe fitting onto the second clamping assembly 2; The clamp 3 of the second clamping assembly 2 clamps the pipe fitting, and the moving mechanism 8 drives the welder 7 to weld the gap between the sealing plate and the pipe fitting. After the welding is completed, the moving mechanism 8 drives the welder 7 away from the pipe fitting, and the clamp 3 of the second clamping assembly 2 releases the pipe fitting. The feeding assembly 4 delivers the pipe to the other side of the equipment, allowing the pipe to leave the equipment and complete the welding. The other side of the equipment is equipped with another external conveying structure that can remove the welded pipe.

[0022] Since the pipe fittings to be processed are difficult to keep in a consistent position along their length when they are delivered to the equipment, it is inefficient and difficult to guarantee accuracy if the welder 7 has to actively search for the ends of the pipe fittings during welding. To solve the above problems, the first clamping assembly 1 and the second clamping assembly 2 in this equipment are designed to slide freely in the direction perpendicular to the feeding line. When the two punch assemblies 5 press the sealing plates into the ends of the pipe fittings, the two punch assemblies 5 will push the pipe fittings and move the first clamping assembly 1 until the two punch assemblies 5 apply the same pressure to the ends of the pipe fittings. In this way, regardless of the previous position of the pipe fitting ends, the positions of all pipe fitting ends will be the same after this step. When the pipe fittings are then delivered to the second clamping assembly 2, the positions of all pipe fitting ends will also be the same, thus eliminating the need for the welder 7 to search for the pipe fitting ends and effectively improving efficiency. In addition, during the welding process, the welding devices 7 on both sides may apply different forces to the ends of the pipe. By making the second clamping assembly 2 movable, it is also possible to ensure that the forces applied by the welding devices 7 to both ends of the pipe are consistent, thereby improving the welding quality.

[0023] The gripper 3 can be implemented using various existing mechanisms; this device provides an optimal structural form, such as... Figures 4-5 As shown, it includes: The clamping base 31 can slide freely in the direction perpendicular to the feeding line; The clamping plate 32 is fixedly mounted on the clamping base 31; The sliding clamping plate 33, driven by a cylinder, slides on the clamping base 31, moving closer to and away from the fixed clamping plate 32.

[0024] The fixed clamping plate 32 provides a fixed reference, so that when clamping the pipe fitting, the sliding clamping plate 33 pushes the pipe fitting towards the fixed clamping plate 32 and then clamps it. The fixed clamping plate 32 is fixed in the direction of the feeding line, so that the welder 7 and the punch assembly 5 can easily find the position of the pipe fitting.

[0025] Preferably, a claw 34 is also provided on the clamp 3; the cross section of the claw 34 is arc-shaped and the central axis is perpendicular to the feeding line; the sliding clamping plate 33 is provided with an extension section extending toward the fixed clamping plate 32, the arc-shaped middle section of the claw 34 is hinged to the extension section of the sliding clamping plate 33, and the hinge axis is parallel to the central axis of the claw 34.

[0026] The function of the above structure is as follows: Traditional push-clamping structures can only generate clamping force in the horizontal direction, which is ineffective for vertical restriction of pipe fittings, requiring additional restriction structures; while this device, through the jaw 34, such as Figure 5As shown, the pipe fitting is slightly lower than the top of the clamp 34. When the clamp 34 is pushed by the sliding clamping plate 33, the lower end of the clamp 34 contacts the side of the pipe fitting, and then the entire clamp 34 rotates, causing the top of the clamp 34 to rotate downwards and press against the top surface of the pipe fitting, thus simultaneously restricting the pipe fitting in both the horizontal and vertical directions. Furthermore, even if there are height differences between different pipe fittings, this rotating and contacting action of the clamp 34 ensures that both ends of the clamp 34 can contact the top and side surfaces of the pipe fitting, effectively guaranteeing the fixing effect of the pipe fitting. Preferably, flexible rubber clamping blocks 35 are provided at the arc-shaped ends of the clamp 34. The flexible clamping blocks 35 protrude slightly circumferentially from the clamp 34, and preferably can rotate so that the top and side surfaces of the pipe fitting are contacted by the flexible clamping blocks 35, thereby preventing scratches on the surface of the pipe fitting.

[0027] The punch assembly 5 can be implemented using various existing mechanisms; this device provides an optimal structural form, such as... Figures 6-9 As shown, it includes: The punch seat 51 is driven by an electric telescopic rod to slide closer to and further away from the first clamping assembly 1; The flip plate 52 is hinged to the punch seat 51 at the top; The connecting rod 53 is fixedly connected at one end to the pivot of the flip plate 52, and the other end is provided with a groove extending along its own length. The drive plate 54 is driven by a cylinder and slides up and down on the punch seat 51; a pin is fixedly installed on the top of the drive plate 54 and the pin extends into the slide groove; An adsorption mechanism, located on the flip plate 52, is used to adsorb and seal the film.

[0028] The function of the above structure is as follows: Through this structure, the flipping plate 52 with the adsorption mechanism can achieve a 90° flipping effect by driving the plate 54 to move up and down; during the pressing and sealing process, the flipping plate 52, as... Figures 6-7 As shown, the flip plate 52 is flipped to a vertical position; during the sealing sheet loading process, the flip plate 52 is as follows: Figures 8-9 The screen flips to a horizontal position; this action switching facilitates the feeding component 6 in feeding materials.

[0029] The adsorption mechanism specifically includes: The suction seat 55 slides on the flip plate 52, moving closer to and further away from the flip plate 52; The adsorption head 56 is fixed on the adsorption base 55. The adsorption head 56 can be in various forms such as a suction cup or a magnet, and can be used to adsorb and seal the film. Spring 57 is disposed between suction seat 55 and flip plate 52.

[0030] The above structure allows the suction seat 55 to apply force to the sealing plate through the reaction of the compressed spring 57 when it is attached to the end face of the pipe fitting. In this way, even if there is a slight deviation in the position of the end face of the pipe fitting, the slight change in the amount of compression of the spring 57 will not have an excessive impact on the magnitude of the reaction force generated by the spring 57, thereby ensuring the consistency of the force applied to the pipe fitting by the punch assembly 5.

[0031] The feeding assembly 6 can be implemented using various existing mechanisms; this device provides an optimal structural form, such as... Figures 10-11 As shown, it includes: The feeding rack 61 is fixedly installed above the punch assembly 5; the feeding rack 61 is provided with an upward-facing inlet 612 and a downward-facing outlet 613 connected by a connecting channel 611; the size of the connecting channel 611 is controlled to allow only one sealing sheet to pass through. A sealing plate trough 62 is provided at the inlet 612 and is used to store sealing plates. Push block 63, driven by cylinder, slides within connecting channel 611 to push the sealing sheet from inlet 612 to outlet 613.

[0032] The working process of the above structure is as follows: Sealing sheets are stacked in the sealing sheet material tray 62. The bottommost sealing sheet falls into the inlet 612 and enters the connecting channel 611. When the flip plate 52 flips upward, the pusher block 63 pushes the sealing sheet to the outlet 613, and then the sealing sheet falls from the outlet 613 onto the adsorption mechanism to complete the loading. Multiple perforated grooves are provided on the side of the sealing sheet material tray 62 to reduce friction between the tray and the sealing sheet, ensuring smooth descent.

[0033] The feeding assembly 4 can be implemented using various existing mechanisms; however, this device provides an optimal structural form, such as... Figure 12 As shown, it includes: The lifting beam 41, driven by a cylinder, moves up and down on the top of the first clamping assembly 1 and the second clamping assembly 2. The transverse beam 42 is driven by a cylinder and slides along the feeding line on the lifting beam 41; the transverse beam 42 has at least three equally spaced grippers 43, and two of the grippers 43 are respectively aligned with the first gripping assembly 1 and the second gripping assembly 2.

[0034] The working process of the above structure is as follows: When moving materials, the lifting beam 41 is lowered first, so that the gripper 43 clamps the pipe. Then the lifting beam 41 rises and drives the pipe to rise. After that, the transverse beam 42 moves forward, so that the gripper 43 drives the pipe forward. Then the lifting beam 41 is lowered, so that the gripper 43 releases the pipe. Then the lifting beam 41 rises and the transverse beam 42 returns to its original position, completing one feeding cycle.

[0035] Preferably, the multiple clamps 3 in the first clamping assembly 1 are slidably connected to each other. During the pressing process of the punch assembly 5, the pressing force is relatively large, which can easily cause slight deformation of the pipe fitting. Therefore, it is necessary for the multiple clamps 3 to be able to slide relative to each other to adapt to this deformation, rather than resisting it, thereby better protecting the pipe fitting. Preferably, the multiple clamps 3 in the second clamping assembly 2 are fixedly connected to each other via connecting beams. During welding, this fixed connection ensures that the pipe fitting will not deform, thus providing good support at the pipe end and ensuring welding quality.

[0036] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. An automated pipe fitting double-head sealing plate welding device, characterized in that, include: A first clamping assembly (1) and a second clamping assembly (2) are arranged along the feeding line; both the first clamping assembly (1) and the second clamping assembly (2) can slide freely in the vertical direction of the feeding line; Both the first clamping assembly (1) and the second clamping assembly (2) include at least two clamps (3) for clamping the pipe fitting; multiple clamps (3) in the same assembly are distributed along the vertical direction of the feeding line; The feeding assembly (4) is used to feed the pipe fittings in the following order: located on one side of the equipment, located on the first clamping assembly (1), located on the second clamping assembly (2), and on the other side of the equipment. The first clamping assembly (1) is provided with a punch assembly (5) and a feeding assembly (6) on both sides; Each of the punch assemblies (5) slides closer to and further away from the first clamping assembly (1); Each of the feeding assemblies (6) is used to feed the sealing sheet to the punch assembly (5); The second clamping assembly (2) is provided with a welder (7) and a moving mechanism (8) on both sides; Each of the moving mechanisms (8) is used to move a corresponding welder (7).

2. The automated pipe fitting double-head sealing plate welding equipment according to claim 1, characterized in that, The clamp (3) includes: The clamping base (31) can slide freely in the direction perpendicular to the feeding line; A fixed clamping plate (32) is fixedly mounted on the clamping base (31); The sliding clamping plate (33) slides on the clamping base (31) towards and away from the fixed clamping plate (32).

3. The automated pipe fitting double-head sealing plate welding equipment according to claim 2, characterized in that, The clamp (3) further includes a claw (34); the cross section of the claw (34) is arc-shaped and the central axis is perpendicular to the feeding line; the sliding clamping plate (33) is provided with an extension section extending toward the fixed clamping plate (32), the arc-shaped middle section of the claw (34) is hinged to the extension section of the sliding clamping plate (33), and the hinge axis is parallel to the central axis of the claw (34).

4. The automated pipe fitting double-head sealing plate welding equipment according to claim 3, characterized in that, Flexible clamping blocks (35) are provided at both ends of the arc-shaped claw (34).

5. The automated pipe fitting double-head sealing plate welding equipment according to claim 1, characterized in that, Each of the punch assemblies (5) includes: The punch seat (51) slides closer to and further away from the first clamping assembly (1); The flip plate (52) is hinged at the top to the punch seat (51); The connecting rod (53) is fixedly connected at one end to the pivot of the flip plate (52), and the other end is provided with a groove extending along its own length. The drive plate (54) slides up and down on the punch seat (51); a pin is fixedly provided on the top of the drive plate (54), and the pin extends into the slide groove; An adsorption mechanism is provided on the flip plate (52) for adsorbing the sealing sheet.

6. The automated pipe fitting double-head sealing plate welding equipment according to claim 5, characterized in that, The adsorption mechanism includes: The adsorption seat (55) slides on the flip plate (52) towards and away from the flip plate (52); An adsorption head (56) is fixed on the adsorption seat (55) and used to adsorb the sealing sheet; A spring (57) is disposed between the adsorption seat (55) and the flip plate (52).

7. The automated pipe fitting double-head sealing plate welding equipment according to claim 5, characterized in that, Each of the feeding components (6) includes: A feeding rack (61) is fixedly installed above the punch assembly (5); the feeding rack (61) is provided with an inlet (612) and an outlet (613) connected by a connecting channel (611); A sealing material trough (62) is provided at the inlet (612); Push block (63) slides within the connecting channel (611) to push the sealing sheet from the inlet (612) to the outlet (613).

8. The automated pipe fitting double-head sealing plate welding equipment according to claim 1, characterized in that, The feeding assembly (4) includes: The lifting beam (41) moves up and down on the top of the first clamping assembly (1) and the second clamping assembly (2); A transverse beam (42) slides along the feeding line on the lifting beam (41); the transverse beam (42) has at least three equally spaced grippers (43), and two of the grippers (43) are respectively aligned with the first clamping assembly (1) and the second clamping assembly (2).

9. The automated pipe fitting double-head sealing plate welding equipment according to claim 1, characterized in that, The plurality of grippers (3) in the first clamping assembly (1) are slidably connected to each other; the plurality of grippers (3) in the second clamping assembly (2) are fixedly connected to each other.

10. An automated method for welding double-ended sealing plates on pipe fittings, characterized in that, Using the automated pipe fitting double-head sealing plate welding equipment as described in any one of claims 1 to 9, the steps include: The pipe fitting is fed to one side of the equipment, and the feeding assembly (4) feeds the pipe fitting onto the first clamping assembly (1); during feeding, the loading assembly (6) feeds the sealing plate onto the punch assembly (5); The clamp (3) of the first clamping assembly (1) clamps the pipe fitting, and then the two punch assemblies (5) on both sides move toward the pipe fitting to insert the sealing plate into both ends of the pipe fitting. Then the two punch assemblies (5) on both sides move away from the pipe fitting, and the clamp (3) of the first clamping assembly (1) releases the pipe fitting. The feeding assembly (4) feeds the pipe fitting onto the second clamping assembly (2); The clamp (3) of the second clamping assembly (2) clamps the pipe fitting, and the moving mechanism (8) drives the welder (7) to weld the gap between the sealing plate and the pipe fitting. After the welding is completed, the moving mechanism (8) drives the welder (7) away from the pipe fitting, and the clamp (3) of the second clamping assembly (2) releases the pipe fitting. The feeding assembly (4) delivers the pipe to the other side of the equipment, allowing the pipe to leave the equipment and complete the welding.

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