Stainless steel pipe welding device

Abstract

The utility model relates to the technical field of stainless steel pipe welding, in particular to a stainless steel pipe welding device. According to the technical scheme, the welding device comprises a stable base and a welding head, a mounting plate is fixed to the middle of the upper end of the stable base, an arc frame is fixed to the mounting plate, an arc groove is formed in the arc frame, a rotating frame is slidably connected into the arc groove, and the welding head is fixed to the middle of the inner side of the rotating frame; an inner side groove is formed in the inner side wall of the arc groove, the end of the welding head penetrates through the inner side groove, the two sides of the arc frame are each rotationally connected with a pair of clamping plates, and the arc frame and the rotating frame are each provided with an arc notch. The rotating frame is used for driving the welding head to rotate along the periphery of the stainless steel pipe, the purpose of automatic welding can be achieved, the arc notches are formed in the arc frame and the rotating frame, the welded pipe can be taken out conveniently, the pipe does not need to be pulled out from the two ends, and operation is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipe welding, in particular to a stainless steel pipe welding device. Background Technique

[0002] Stainless steel pipe welding is a metal welding process used to connect or repair stainless steel pipes. Due to the excellent corrosion resistance of stainless steel, some key factors need to be considered during the welding of stainless steel pipes to ensure the welding quality and the corrosion resistance of stainless steel. When welding stainless steel pipes, it is crucial to follow the correct operating procedures and welding techniques to ensure the quality of the welded joints and the service life of the stainless steel pipes. Since welding is a process involving high temperatures, improper welding techniques may cause a decrease in the corrosion resistance of stainless steel.

[0003] Common welding methods include manual welding and mechanical welding. By using a welding head to perform circular rotation at the pipe connection, the purpose of automatic welding can be achieved, and the effect of improving work efficiency can be realized. However, the welding head for automatic welding needs to move in a circular motion on a circular track. Therefore, the end of the stainless steel pipe needs to be inserted into the circular track. After welding, the stainless steel pipe needs to be withdrawn from the circular track. When welding two relatively long stainless steel pipes, the operation of withdrawing the pipes is relatively troublesome. Therefore, an automatic welding device that can quickly pick up materials needs to be designed. Content of the Utility Model

[0004] The purpose of the utility model is to propose a stainless steel pipe welding device for the problems existing in the background technique.

[0005] The technical solution of the utility model: A stainless steel pipe welding device includes a stable base and a welding head. An installation plate is fixed at the middle position of the upper end of the stable base. An arc frame is fixed on the installation plate. An arc groove is opened in the arc frame. A rotating frame is slidably connected in the arc groove. The welding head is fixed at the middle position of the inner side of the rotating frame. An inner groove is opened on the inner side wall of the arc groove. The end of the welding head passes through the inner groove. A pair of clamping plates are rotatably connected to both sides of the arc frame. Both the arc frame and the rotating frame are provided with arc notches.

[0006] Preferably, a pair of linkage rotating shafts are rotatably connected to both sides of the arc frame. Linkage gears are fixed on the linkage rotating shafts. The linkage gears on the same side are meshed with each other. The end of the clamping plate is fixed on the outside of the linkage gear.

[0007] Preferably, a telescopic cylinder is installed between the upper end of the installation plate and the outside of the lower clamping plate. Both ends of the telescopic cylinder are hinged to the installation plate and the clamping plate respectively.

[0008] Preferably, a driving groove is formed on the outer side of the rotating frame, a driving rack is fixed in the driving groove, two synchronous motors are fixed on the outer side of the arc-shaped frame, and the output ends of the two synchronous motors are both located in the arc-shaped groove and meshed with the driving rack.

[0009] Preferably, the arc distance between the two synchronous motors is less than the length of the arc notch of the rotating frame.

[0010] Preferably, a support platform is fixed on the upper end of the stable base, and the height of the support platform is aligned with the circular position of the arc-shaped frame.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects: the rotating frame is used to drive the welding head to rotate along the outer circumference of the stainless steel pipe, so as to achieve the purpose of automatic welding. Moreover, arc notches are provided on the arc-shaped frame and the rotating frame, which can facilitate the removal of the welded pipe without extracting the pipe from both ends, and the operation is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic top view of the external structure of the utility model;

[0013] Figure 2 is a schematic side sectional view of the arc-shaped frame of the utility model;

[0014] Figure 3 is a schematic view of the external structure of the rotating frame of the utility model;

[0015] Figure 4 is a schematic side view of the external structure of the arc-shaped frame of the utility model.

[0016] Reference numerals: 1, stable base; 11, support platform; 12, mounting plate; 2, welding head; 3, arc-shaped frame; 31, arc-shaped groove; 32, synchronous motor; 33, driving gear; 34, inner groove; 4, clamping plate; 41, linkage rotating shaft; 42, linkage gear; 43, telescopic cylinder; 5, rotating frame; 51, driving groove; 52, driving rack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes the technical solutions of the utility model with reference to the accompanying drawings and specific embodiments.

[0018] Embodiment

[0019] As Figures 1-4As shown in the figure, a stainless steel pipe welding device proposed by the present utility model includes a stable base 1 and a welding head 2. In the middle position at the upper end of the stable base 1, a mounting plate 12 is fixed. On the mounting plate 12, an arc-shaped frame 3 is fixed. An arc-shaped groove 31 is formed in the arc-shaped frame 3. A rotating frame 5 is slidably connected in the arc-shaped groove 31. The welding head 2 is fixed at the middle position on the inner side of the rotating frame 5. An inner groove 34 is formed in the inner side wall of the arc-shaped groove 31. The end of the welding head 2 passes through the inner groove 34. On both sides of the arc-shaped frame 3, a pair of clamping plates 4 are rotatably connected. Both the arc-shaped frame 3 and the rotating frame 5 are provided with arc-shaped notches. At the upper end of the stable base 1, a support platform 11 is fixed. The height of the support platform 11 is aligned with the circular position of the arc-shaped frame 3.

[0020] On both sides of the arc-shaped frame 3, a pair of linkage rotating shafts 41 are rotatably connected. On the linkage rotating shafts 41, linkage gears 42 are respectively fixed. The linkage gears 42 on the same side are meshed with each other. The end of the clamping plate 4 is fixed on the outer side of the linkage gear 42. Between the upper end of the mounting plate 12 and the outer side of the lower clamping plate 4, a telescopic cylinder 43 is installed. The two ends of the telescopic cylinder 43 are respectively hinged to the mounting plate 12 and the clamping plate 4.

[0021] On the outer side of the rotating frame 5, a driving groove 51 is formed. A driving toothed plate 52 is fixed in the driving groove 51. On the outer side of the arc-shaped frame 3, two synchronous motors 32 are fixed. The output ends of the two synchronous motors 32 are both located in the arc-shaped groove 31 and are meshed with the driving toothed plate 52. The arc distance between the two synchronous motors 32 is less than the length of the arc-shaped notch of the rotating frame 5.

[0022] In this embodiment, first, the entire device is connected to an external power supply. Then, the stainless steel pipe is placed on the support platform 11, and the end is aligned and inserted into the arc-shaped frame 3 to ensure that the welding head 2 is aligned with the pipe connection. At this time, driven by the telescopic cylinder 43, the bottom clamping plate 4 is pushed to rotate upward. Under the transmission of the linkage gear 42, the upper clamping plate 4 can be driven to rotate downward, finally realizing the clamping and fixing of the pipe, ensuring the stability during the welding process. Finally, driven by the synchronous motor 32, the driving gear 33 is driven to rotate. Then, under the transmission of the driving toothed plate 52, the rotating frame 5 is driven to rotate. Since the distance between the two synchronous motors 32 is less than the notch distance of the arc-shaped notch, it can be ensured that at least one driving gear 33 is meshed with the driving toothed plate 52, ensuring the continuous rotation of the rotating frame 5. Finally, the welding head 2 rotates circumferentially outside the pipe connection to achieve the purpose of automatic welding, improving the welding speed. And after the welding is completed, the rotating frame 5 is moved into the arc-shaped groove 31 for storage, and the pipe connection can be taken out from the arc-shaped notch without passing the entire pipe end through the arc-shaped frame 3, making the operation simpler.

[0023] The above specific embodiments are only several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A stainless steel pipe welding device, comprising a stable base (1) and a welding head (2), characterized in that: A mounting plate (12) is fixed at the middle position of the upper end of the stable base (1), an arc frame (3) is fixed on the mounting plate (12), an arc groove (31) is provided in the arc frame (3), a rotating frame (5) is slidably connected in the arc groove (31), the welding head (2) is fixed at the middle position of the inner side of the rotating frame (5), an inner side groove (34) is provided on the inner side wall of the arc groove (31), an end of the welding head (2) passes through the inner side groove (34), a pair of clamping plates (4) are rotatably connected on both sides of the arc frame (3), and the arc frame (3) and the rotating frame (5) are both provided with arc notches.

2. A stainless steel pipe welding device according to claim 1, characterized in that: A pair of linkage shafts (41) are rotatably connected on both sides of the arc frame (3), linkage gears (42) are fixed on the linkage shafts (41), the linkage gears (42) on the same side are meshed with each other, and the end of the clamping plate (4) is fixed on the outside of the linkage gear (42).

3. A stainless steel pipe welding device according to claim 1, characterized in that: A telescopic cylinder (43) is installed between the upper end of the mounting plate (12) and the outer side of the lower clamping plate (4), and the two ends of the telescopic cylinder (43) are respectively hinged to the mounting plate (12) and the clamping plate (4).

4. A stainless steel pipe welding device according to claim 1, characterized in that: A driving groove (51) is provided on the outside of the rotating frame (5), a driving tooth plate (52) is fixed in the driving groove (51), two synchronous motors (32) are fixed on the outside of the circular arc frame (3), and output ends of the two synchronous motors (32) are both located in the circular arc groove (31) and meshed with the driving tooth plate (52).

5. A stainless steel pipe welding device according to claim 4, characterized in that: The arc spacing between the two synchronous motors (32) is smaller than the arc gap length of the rotating frame (5).

6. A stainless steel pipe welding device according to claim 1, characterized in that: A support platform (11) is fixed to the upper end of the stable base (1), and the height of the support platform (11) is aligned with the circular position of the arc frame (3).

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