Pipeline self-adaptive welding machine

Abstract

The invention relates to the technical field of welding, in particular to a pipeline self-adaptive welding machine which solves the problem that in the prior art, welding equipment cannot automatically weld two pipelines with inclined notches, and consequently manual intervention and control are needed. The pipeline self-adaptive welding machine comprises the two pipelines arranged on the left side and the right side, and fixing frames and swing cavities are arranged at the front ends, the rear ends, the left ends and the right ends of the pipelines correspondingly; a connecting disc is connected between the two pipelines in an abutting mode, a sliding table is connected to the swing cavity in a sliding mode, screw rods are connected to the left end and the right end of the sliding table, electric welding heads are arranged on the portions, close to the abutting portions of the pipelines and the connecting disc, of the screw rods, two sliding blocks which are symmetrical front and back are arranged on the fixing frame, connecting frames are arranged in the sliding blocks, and rolling wheels are rotationally matched with the connecting frames; and by attaching the left and right parts, welding work of different sizes and different notches can be achieved, the welding quality is improved, manual operation is not needed, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a pipeline adaptive welding machine. Background Art

[0002] Ring welding machine is a kind of welding machine. It is a machine equipment that welds the annular gap by pointing. For example, the welds between the upper and lower covers and the shell of the household air conditioner compressor and the weld connection between two pipes are welded by ring welding machine. Ring welding machine is divided into vertical ring welding machine and horizontal ring welding machine.

[0003] The existing ring welding machine rotates the material to enable the fixed welding gun to weld the material. However, when the ring weld to be welded and the welding machine are not in the same plane, for example, the incision between the two pipe openings is tilted, simply rotating the material cannot keep the welding gun and the weld corresponding, which will result in the ring weld cannot be completed. In addition, most of the existing material fixing devices are in a fixed state and cannot be adjusted, and some movable fixing devices cannot be accurately adjusted during adjustment. There is jitter at a certain position. When the welding surface is tilted, the welding blocks on both sides of the weld cannot remain symmetrical, which will affect the stability of the welding. Summary of the invention

[0004] The object of the present invention is to provide a pipeline adaptive welding machine to overcome the above-mentioned defects in the prior art.

[0005] According to the present invention, a pipeline adaptive welding machine comprises two pipelines arranged on the left and right, wherein the front and rear ends and the left and right ends of the pipelines are respectively provided with a fixed frame and a swing cavity, a connecting plate is abutted between the two pipelines, a sliding table is slidably connected to the swing cavity, the left and right ends of the sliding table are connected with screws, and an electric welding head is provided at the part of the screw near the abutment between the pipeline and the connecting plate, the fixed frame is provided with two front-to-back symmetrical sliding blocks, a connecting frame is provided inside the sliding block, and a rolling wheel is rotatably matched on the connecting frame, a gantry is fixedly provided at the upper ends of the two fixed frames, a threaded rod is threadedly connected to the gantry, a push plate is rotatably connected to the lower end of the threaded rod, and two groups of guide slides distributed up and down are fixedly provided inside the fixed frame, and the guide slides are arranged in a T shape. , the two adjacent sliding blocks are recessed at the ends close to each other, and the two adjacent groups of guide slides are slidably matched with sliding blocks, and two adjacent sliding blocks are provided with two upper and lower symmetrical swing cavities, and a torsion spring is connected between the connecting frame and the side wall of the swing cavity. Each connecting frame is provided with a power source and is connected to the rolling wheel power. A return spring is connected between the fixed frame and the sliding block. A card slide groove is provided on the left and right end surfaces of the connecting disk, and the sliding table is rotatably connected to the positioning splint near the connecting disk end, and the positioning splint is fixed with a convex plate near the connecting disk end to fit the left and right end surfaces of the connecting disk, and the two convex plates are fixed with a card block near the end of the card slide groove to slide and engage with the card slide groove, and the convex plate has elastic

[0006] Preferably, a slot is provided on the outer periphery of the connecting disk, a positioning rod is slidably fitted in the sliding platform, a push spring is connected between the sliding platform and the positioning rod, the positioning rod extends toward the end of the connecting disk and is inserted into the slot and abuts against the wall of the slot, an extension frame is fixed to the left and right ends of the two sliding platforms, the screw thread is arranged on the extension frame, the screw and the positioning rod are arranged at an inclined angle, a slot is provided on the outer periphery of the positioning rod, a sliding groove arranged front and back is provided on the sliding platform, a blocking block is slidably fitted on the sliding platform, the upper end of the blocking block abuts against the upper end protrusion of the sliding platform, and the lower end of the blocking block abuts against the side wall of the blocking slot, a fixing piece is provided on the sliding slot, and the fixing piece extends left and right through the blocking piece.

[0007] The beneficial effects of the present invention are:

[0008] The left and right pipes are abutted against the connecting disk, and a sliding table and a positioning rod are connected to the working electric welding head. The sliding table and the positioning rod follow the movement of the connecting disk during the rotation of the pipe and the connecting disk, thereby maintaining the welding effect of the fitting part of the electric welding head, the pipe and the connecting disk, thereby adapting to the welding work between two pipes of different sizes and incisions, thereby improving practicality.

[0009] The position of the sliding block that can slide back and forth is adjusted by rotating the threaded rod, thereby achieving the positioning effect of pipes of different sizes. The method is easy to use and has obvious effects.

[0010] By means of the snap-fitting cooperation between the positioning clamping plate and the side wall of the card slide groove, a connecting disk is arranged between the front and rear sliding tables, and the connecting disk part is centrally positioned, so as to facilitate the abutment between the pipeline and the connecting disk, and enable the punching of the connecting disk in advance, so as to maintain the connectivity of the left and right pipelines after welding, and maintain the smoothness of the pipeline and the inner circumference of the connecting disk, so as to facilitate subsequent processing.

[0011] By maintaining contact with the side wall, it is possible to drive the left and right movement during rotation, thereby maintaining contact with the contact point and further maintaining stability during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the appearance of the present invention;

[0013] Figure 2 The present invention Figure 1 A schematic diagram of a top view structure;

[0014] Figure 3 The present invention Figure 1 A schematic diagram of the front view structure of

[0015] Figure 4 The present invention Figure 1 A side view schematic diagram of the structure;

[0016] Figure 5 The present invention Figure 3 Schematic cross-sectional view of AA in the figure;

[0017] Figure 6 The present invention Figure 3 A partial cross-sectional view of the middle BB at the location of the positioning rod;

[0018] Figure 7 It is a partial enlarged appearance schematic diagram of the positioning rod of the present invention;

[0019] Figure 8 The present invention Figure 4 A partial cross-sectional schematic diagram of the CC;

[0020] Fig. 9 The present invention Figure 4 A partial cross-sectional schematic diagram of the CC;

[0021] In the figure:

[0022] 10. Pipe; 11. Connecting plate; 12. Fixed frame; 13. Guide slide frame; 14. Sliding block; 15. Reset spring; 16. Push plate; 17. Threaded rod; 18. Connecting frame; 19. Rolling wheel; 20. Swinging cavity; 21. Sliding table; 22. Positioning rod; 23. Slot; 24. Push spring; 25. Extension frame; 26. Screw; 27. Block; 28. Fixing piece; 29. ​​Slide groove; 30. Slide groove; 31. Gantry; 32. Electric welding head; 33. Positioning splint; 34. Slot. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Embodiment 1:

[0025] Reference Figure 1-Figure 9According to an embodiment of the present invention, a pipeline adaptive welding machine comprises two pipelines 10 arranged on the left and right, and a fixed frame 12 and a swing chamber 20 are respectively provided at the front and rear and left and right ends of the pipeline 10, a connecting plate 11 is abutted between the two pipelines 10, a sliding table 21 is slidably connected to the swing chamber 20, and screws 26 are connected to the left and right ends of the sliding table 21, and an electric welding head 32 is provided at the part of the screw 26 near the pipeline 10 and the connecting plate 11. Two front-to-back symmetrical sliding blocks 14 are provided on the fixed frame 12, a connecting frame 18 is provided in the sliding block 14, and a rolling wheel 19 is rotatably matched on the connecting frame 18, a gantry 31 is fixed at the upper end of the two fixed frames 12, a threaded rod 17 is threadedly connected to the gantry 31, and a push plate 16 is rotatably connected to the lower end of the threaded rod 17, and two groups of guide slides 13 distributed up and down are fixed in the fixed frame 12, The guide slide 13 is arranged in a T shape, and the two adjacent sliding blocks 14 are arranged with their ends close to each other recessed inwardly. The two adjacent groups of guide slides 13 are slidably matched with sliding blocks 14, and two adjacent sliding blocks 14 are provided with two upper and lower symmetrical swing chambers 20. A torsion spring is connected between the connecting frame 18 and the side wall of the swing chamber 20. Each connecting frame 18 is provided with a power source and is powered by the rolling wheel 19. A reset spring 15 is connected between the fixed frame 12 and the sliding block 14. A card slide groove 30 is provided on the left and right end surfaces of the connecting disk 11. The sliding table 21 is rotatably connected with a positioning splint 33 near the end of the connecting disk 11. The positioning splint 33 is fixed with a convex plate near the end of the connecting disk 11 to fit the left and right end surfaces of the connecting disk 11. The two convex plates are fixed with a card block near the end of the card slide groove 30 to slide and engage with the card slide groove 30, and the convex plate has elasticity.

[0026] Before working, the connection disk 11 is placed between the front and rear sliding tables 21, and the connection disk 11 is inserted between the two sliding tables 21 from top to bottom. Under the elastic deformation of the positioning clamping plate 33, the protrusion on the positioning clamping plate 33 is engaged with the side wall of the card slide groove 30 on the connection disk 11, so that the connection disk 11 is restricted and the center of the connection disk 11 is positioned by the engagement between the positioning clamping plate 33 and the side wall of the card slide groove 30. The middle end of the sliding block 14 is in the same plane as the middle end of the positioning plug rod 22. In the normal state, the connection disk 11 is set in a vertical state;

[0027] The user inserts the two pipes 10 into the fixing frame 12, and the pipes 10 are located between the two sliding blocks 14, so that the end faces of the left and right pipes 10 abut against the connecting plate 11. If the end faces of the pipes 10 are inclined, under the abutment of the two pipes 10, the positioning clamping plate 33 is coaxially arranged with the positioning plug rod 22 and slides together, so that the connecting plate 11 can be pushed to deflect with the positioning plug rod 22 as the rotation axis, such as Figure 1 As shown;

[0028] The user rotates the threaded rod 17 threadedly connected to the gantry 31, so that the threaded rod 17 pushes the push plate 16 downward under the threaded cooperation, thereby moving the two front-to-back symmetrical sliding blocks 14 that slide and cooperate with the lower end of the push plate 16 through the two inclined surfaces at the lower end of the push plate 16. The front and rear sliding blocks 14 overcome the force of the return spring 15 under the sliding cooperation of the two sets of guide slides 13 and approach each other until the rolling wheel 19 on the connecting frame 18 connected to the sliding block 14 abuts against the circumferential surface of the pipe 10. The user stops the rotation of the threaded rod 17 so that the left and right pipes 10 are set on the fixed frames 12 distributed on the left and right.

[0029] The electric welding heads 32 distributed on the left and right are arranged at the left and right ends of the connecting disk 11 and at the abutment between the pipe 10 and the connecting disk 11. The user controls the power source at the connecting frame 18 to work, so that the power source drives the rolling wheel 19 on the connecting frame 18 to rotate. The rolling wheel 19 abutting against the pipe 10 drives the pipes 10 at the left and right ends and the abutting connecting disk 11 to rotate. The pipe 10 and the connecting disk 11 are partially welded by the electric welding heads 32. Under the abutment between the positioning plug 22 and the connecting disk 11, the connecting disk 11 can push the sliding table 21 to slide left and right on the swing cavity 20 during rotation, thereby driving the electric welding head 32 connected to the sliding table 21 to slide left and right, and welding work is performed between the pipe 10 and the connecting disk 11.

[0030] The connecting disk 11 is divided into two states: closed and open. When the connecting disk 11 is open, it abuts against the left and right pipes 10, and can maintain the connectivity between the two pipes 10 after welding. If conditions permit, after the pipes 10 are welded through the closed connecting disk 11, the through holes and the inner walls are polished in subsequent work to maintain the connectivity between the two pipes 10.

[0031] Embodiment 2:

[0032] Referring to Example 1, a pipeline adaptive welding machine according to an embodiment of the present invention, optionally, a slot 23 is provided on the outer periphery of the connecting disk 11, a positioning rod 22 is slidably matched in the sliding table 21, a push spring 24 is connected between the sliding table 21 and the positioning rod 22, the positioning rod 22 extends to the end of the connecting disk 11 and is inserted into the slot 23 and abuts against the wall of the slot 23, an extension frame 25 is fixed to the left and right ends of the two sliding tables 21, a screw 26 is threadedly arranged on the extension frame 25, the screw 26 and the positioning rod 22 are arranged at an inclination angle, a card slot 34 is provided on the outer periphery of the positioning rod 22, a front and rear sliding groove 29 is provided on the sliding table 21, a card block 27 is slidably matched on the sliding table 21, the upper end of the card block 27 abuts against the upper end protrusion of the sliding table 21, and the lower end of the card block 27 abuts against the side wall of the card slot 34, and a fixing member 28 is provided on the sliding groove 29, and the fixing member 28 extends left and right through the card block 27.

[0033] The positioning rod 22 moves toward the end of the connecting plate 11 under the force of the push spring 24, and the positioning rod 22 is inserted into the connecting plate 11 through the slot 23 and abuts against the peripheral side wall of the slot 23. Figure 7 As shown, the slot 34 is opened upward and arranged between the two left and right protrusions of the sliding platform 21. The user inserts the T-shaped block 27 between the two protrusions so that the lower end of the block 27 is inserted into the slot 34, and then inserts the fixing member 28 between the block 27 and the slide groove 29. The fixing member 28 passes through the through hole at the block 27 and the two slide grooves 29 arranged on the protrusion of the sliding platform 21, and is fixed and installed at the fixing member 28 by installing a nut, thereby limiting the forward and backward movement of the block 27, and then limiting the movement of the positioning rod 22 by the block 27, so that the positioning rod 22 maintains abutment with the side wall of the slot 23. For pipes 10 of different sizes, the user rotates the screw rod 26 so that the screw rod 26 cooperates with the thread of the extension frame 25, and drives the electric welding head 32 at the screw rod 26 to approach the gap between the pipe 10 and the connecting plate 11.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A pipeline adaptive welding machine, comprising two pipelines (10) arranged on the left and right, characterized in that: A fixed frame (12) and a swing chamber (20) are respectively provided at the front and rear ends and the left and right ends of the pipe (10); a connecting plate (11) is abutted between the two pipes (10); a sliding platform (21) is slidably connected to the swing chamber (20); screw rods (26) are connected to the left and right ends of the sliding platform (21); a welding head (32) is provided at the part of the screw rod (26) close to the pipe (10) abutting against the connecting plate (11); two sliding blocks (14) are symmetrically arranged at the front and rear ends on the fixed frame (12); a connecting frame (18) is arranged inside the sliding block (14); and a rolling wheel (19) is rotatably matched on the connecting frame (18).

2. A pipeline adaptive welding machine according to claim 1, characterized in that: A slot (23) is provided on the outer circumference of the connecting disk (11), a positioning rod (22) is slidably fitted in the sliding platform (21), a push spring (24) is connected between the sliding platform (21) and the positioning rod (22), the positioning rod (22) extends toward the end of the connecting disk (11) and is inserted into the slot (23) and abuts against the wall surface of the slot (23), and an extension frame (25) is fixedly provided at both left and right ends of the two sliding platforms (21), and the screw rod (26) is threadedly arranged on the extension frame (25).

3. A pipeline adaptive welding machine according to claim 2, characterized in that: A gantry (31) is fixedly provided at the upper ends of the two fixed frames (12), a threaded rod (17) is threadedly connected to the gantry (31), and a push plate (16) is rotatably connected to the lower end of the threaded rod (17). Two groups of guide slides (13) distributed vertically are fixedly provided in the fixed frame (12), and sliding blocks (14) are slidably matched between two adjacent groups of guide slides (13), and two vertically symmetrical swing cavities (20) are provided between two adjacent sliding blocks (14). A torsion spring is connected between the connecting frame (18) and the side wall of the swing cavity (20), and each connecting frame (18) is provided with a power source connected to the rolling wheel (19) in power, and a reset spring (15) is connected between the fixed frame (12) and the sliding block (14).

4. A pipeline adaptive welding machine according to claim 3, characterized in that: A card slot (34) is provided on the outer periphery of the positioning rod (22), and a front-rear sliding slot (29) is provided on the sliding platform (21). A card block (27) is slidably matched on the sliding platform (21), and the upper end of the card block (27) abuts against the upper end protrusion of the sliding platform (21), and the lower end of the card block (27) abuts against the side wall of the card slot (34). A fixing piece (28) is provided on the sliding slot (29), and the fixing piece (28) extends left and right and passes through the card block (27).

5. A pipeline adaptive welding machine according to claim 4, characterized in that: The left and right end surfaces of the connecting disk (11) are both provided with card slide grooves (30); the sliding platform (21) is rotatably connected with a positioning clamp (33) at the end close to the connecting disk (11); the positioning clamp (33) is fixed with a convex plate at the end close to the connecting disk (11) to fit the left and right end surfaces of the connecting disk (11); the two convex plates are fixed with a clamping block at the end close to the card slide groove (30) to slide and clamp with the card slide groove (30); the convex plate is elastic.

6. A pipeline adaptive welding machine according to claim 5, characterized in that: The guide slide frame (13) is arranged in a T-shape, and the two adjacent sliding blocks (14) are arranged with their ends close to each other recessed inwardly.

7. A pipeline adaptive welding machine according to claim 6, characterized in that: The screw rod (26) and the positioning rod (22) are arranged at an inclined angle.

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