Stainless steel corrosion reducing pipe and electric welding clamp thereof

By designing stainless steel corrosive reducer tubes and their welding fixtures, small rotary caps and large rotary caps are used to support the reducer tubes, achieving all-round brazing between reducer tubes and circular tubes, solving the problem that existing devices cannot effectively clamp the difference Diameter pipes lead to incomplete brazing problems, improving the quality and efficiency of the workpiece.

CN119457308APending Publication Date: 2025-02-18HEBEI GUOSHENG PIPELINE EQUIP MFG CO LTD +1
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Patent Information

Application Number
CN202411620425.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

The existing reducer tube brazing devices cannot effectively clamp the reducer tube, resulting in incomplete brazing, requiring secondary processing, and lack of brazing devices suitable for reducer tubes on the market.

Method used

A stainless steel corrosion reducer tube and its welding fixture were designed, and the reducer tube was supported by a small rotating cap and a large rotating cap. The all-round brazing of the reducer tube and the circular tube is achieved through the rotation shaft, and through horizontal movement and vertical movement. The shifting mechanism cooperates to move to realize the processing and removal of the reducer tube and the circular tube.

Benefits of technology

Complete brazing of the reducer tube and the circular tube is achieved, secondary processing is avoided, the quality and efficiency of the workpiece is improved, and the friction of the reducer tube is reduced through limiting and supporting mechanisms to prevent displacement.

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Abstract

The invention relates to the field of reducing pipe brazing structures, in particular to a stainless steel corrosion reducing pipe and an electric welding clamp thereof.The stainless steel corrosion reducing pipe comprises a base, brazing guns are installed on the surfaces of the two sides of the base through fixing mechanisms, and a vertical drawing plate is installed on the upper surface of the base through a vertical moving mechanism; the upper surface of the vertical drawing plate is provided with two small rotating caps and two large rotating caps through supporting mechanisms, the upper surface of the vertical drawing plate is provided with a transverse drawing plate through a transverse moving mechanism, and the upper surface of the transverse drawing plate is provided with a limiting L-shaped plate through a rotating connecting mechanism. According to the device, the small rotating cap and the large rotating cap are attached to the outer surface of the reducing pipe, the reducing pipe is supported, all-directional brazing of the reducing pipe and a round pipe is achieved through the rotating shaft, the diameter of the reducing pipe is increased, the diameter of the reducing pipe is increased, the diameter of the reducing pipe is increased, and the diameter of the reducing pipe is increased. And the workpiece does not need secondary processing.
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Description

Technical Field

[0001] The invention relates to the field of reducer brazing structures, in particular to a stainless steel corroded reducer and an electric welding fixture thereof. Background Art

[0002] Reducers, also known as reducers, are a type of reducer made by pressing. Their main function is to connect two pipes of different diameters to achieve smooth connection of the pipeline system. In industries such as chemical, petroleum, tap water, and natural gas, due to the complexity and diversity of the pipeline system, it is often necessary to connect pipes of different sizes. Stainless steel corrosion reducers can meet this demand well, ensuring smooth flow of fluids between pipes of different specifications. These materials have good corrosion resistance.

[0003] Stainless steel corrosion-resistant reducers are used to transport natural gas buried underground to adapt to the environment of corrosive media and can maintain the stability and safety of the pipeline in harsh environments.

[0004] The existing device still needs to manually braze the special-shaped tubes, and fix the reducer and the round tube by a clamping device. However, due to manual errors, there are still some positions where the brazing of the reducer and the round tube is incomplete, resulting in the need for secondary processing of the workpiece, which is time-consuming and labor-intensive. The existing brazing devices on the market cannot clamp the reducer, so the brazing operation cannot be achieved. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a stainless steel corrosion reducer and an electric welding fixture thereof.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a stainless steel corroded reducer and its electric welding fixture, including a base, a brazing gun is installed on the two side surfaces of the base through a fixing mechanism, a vertical pull-out plate is installed on the upper surface of the base through a vertical movement mechanism, two small rotating caps and a large rotating cap are respectively installed on the upper surface of the vertical pull-out plate through a supporting mechanism, a horizontal pull-out plate is installed on the upper surface of the vertical pull-out plate through a horizontal movement mechanism, a limited L-shaped plate is installed on the upper surface of the horizontal pull-out plate through a transfer mechanism, the limited L-shaped plate is installed with a trapezoidal silicone head through a rotation support mechanism, and a semi-annular silicone head is installed on the side surface of the base through a support and rotation mechanism; The supporting mechanism includes two small rotating columns fixedly mounted on the upper surface of the vertical pull-out plate, and the two small rotating caps are movably mounted on the outer surfaces of the small rotating column ports, a first circular baffle is fixedly mounted on the outer side of the small rotating column, and the first circular baffle is mounted on the outer side of the small rotating cap, two large rotating columns are fixedly mounted on the upper surface of the vertical pull-out plate, and the two large rotating caps are movably mounted on the outer surfaces of the large rotating column ports, a second circular baffle is fixedly mounted on the outer side of the large rotating column, and the second circular baffle is mounted on the outer side of the large rotating cap.

[0007] Preferably, a partition is fixedly installed on the outer side of the first circular partition, and two small support plates are fixedly installed on the upper surface of the vertical pull-out plate, a first fixing hole is opened inside the small support plate, and the small rotating column is fixedly installed on the inner surface of the first fixing hole, and the small support plate is installed on the inner side of a small rotating cap, and two large support plates are fixedly installed on the upper surface of the vertical pull-out plate, a second fixing hole is opened inside the large support plate, and the large rotating column is fixedly installed on the inner surface of the second fixing hole, and the large support plate is installed on the inner side of a large rotating cap, and the outer surface of the reducer is supported by the small rotating cap and the large rotating cap.

[0008] Preferably, the fixing mechanism comprises two side fixing plates respectively fixedly mounted on both sides of the base, the rear surfaces of the two side fixing plates are fixedly mounted with fixing plates, the front surfaces of the fixing plates are fixedly mounted with a brazing gun, and the brazing gun is fixedly mounted above the large rotating cap.

[0009] Preferably, the vertical movement mechanism includes two first slide rails fixedly mounted on one side of the upper surface of the base, a first slide table is movably mounted on the inner surface of the first slide rails, and the vertical pull-out plate is fixedly mounted on the upper surface of the first slide table.

[0010] Preferably, the transverse movement mechanism includes a support frame fixedly mounted on one side of the upper surface of the base, and the support frame is mounted on the outside of the small rotating cap, two second slide rails are fixedly mounted on the upper surface of the support frame, a second slide table is movably mounted on the inner surface of the second slide rail, and the transverse pull-out plate is fixedly mounted on the upper surface of the second slide table.

[0011] Preferably, the transfer mechanism includes a first rotating motor fixedly mounted on the upper surface of the transverse pull-out plate, a rotating shaft is fixedly mounted on a port of the first rotating motor, and the limiting L-shaped plate is fixedly mounted at an inner port of the rotating shaft.

[0012] Preferably, the rotating support mechanism includes two fixed shafts that movably pass through both sides of the upper surface of the limiting L-shaped plate, and a support plate is movably sleeved on the outer surface of each fixed shaft, and the support plate is movably installed between the limiting L-shaped plate and the fixed shaft, and the trapezoidal silicone head is fixedly installed on the outer end of the support plate.

[0013] Preferably, the supporting and rotating mechanism includes an extension plate fixedly mounted on the front surface of a side fixing plate, and the extension plate and the supporting frame are respectively mounted on both sides above the base, a fixed L-shaped plate is fixedly mounted on the outer side of the extension plate, a second rotating motor is fixedly mounted on the inner surface of the fixed L-shaped plate, and the second rotating motor movably passes through the extension plate, an annular fixing plate is fixedly mounted on the port of the second rotating motor, and two semi-annular silicone heads are fixedly mounted on the inner side of the annular fixing plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The invention can support the reducer by fitting the outer surface of the reducer with the small rotating cap and the large rotating cap, and realize all-round brazing of the reducer and the round tube through the rotating shaft, without the need for secondary processing of the workpiece.

[0015] The small rotating cap and the large rotating cap limit their rotation range through the first circular baffle, the second circular baffle, the small supporting plate and the large supporting plate, and drive the small rotating cap and the large rotating cap to rotate when the reducer rotates, thereby reducing the friction between the reducer and the small rotating cap and the large rotating cap, and avoiding displacement of the reducer due to excessive friction.

[0016] The lateral movement mechanism and the vertical movement mechanism cooperate to move, so as to realize the placement and removal of the reducer and the round tube before and after processing, and the reducer and the round tube are fixed by the trapezoidal silicone head and the semi-circular silicone head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a stainless steel corrosion reducer and its electric welding fixture of the present invention; Figure 2 It is a structural schematic diagram of a vertical movement mechanism of a stainless steel corroded reducer and an electric welding fixture thereof according to the present invention; Figure 3 This is a schematic structural diagram of a stainless steel corrosion reducer and a supporting mechanism of an electric welding fixture thereof according to the present invention; Figure 4 The invention discloses a stainless steel corrosion reducing pipe and its electric welding fixture. Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 It is a structural schematic diagram of a lateral movement mechanism of a stainless steel corrosion reducer and an electric welding fixture thereof according to the present invention; Figure 6 It is a structural schematic diagram of a transfer mechanism of a stainless steel corrosion reducer and an electric welding fixture thereof according to the present invention; Figure 7 It is a schematic diagram of a rotating support structure of a stainless steel corrosion reducer and an electric welding fixture thereof according to the present invention; Figure 8 It is a schematic diagram of the supporting and rotating structure of a stainless steel corrosion reducer and its electric welding fixture of the present invention; Fig. 9 This is a schematic diagram of the structure of a stainless steel corroded reducer and its electric welding fixture in use according to the present invention; In the figure: 1. base; 2. side fixing plate; 3. fixing plate; 4. first slide rail; 5. first slide; 6. vertical pull-out plate; 7. small rotating column; 8. small rotating cap; 9. first circular partition; 10. small support plate; 11. first fixing hole; 12. large rotating column; 13. large rotating cap; 14. second circular partition; 15. large support plate; 16. second fixing hole; 17. partition; 18. support frame; 19. second slide rail; 20. second slide; 21. horizontal pull-out plate; 22. first rotating motor; 23. rotating shaft; 24. limiting L-shaped plate; 25. support plate; 26. trapezoidal silicone head; 27. fixed shaft; 28. extension plate; 29. ​​fixed L-shaped plate; 30. second rotating motor; 31. annular fixing plate; 32. semi-annular silicone head; 33. brazing gun; 34. round tube; 35. reducer. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0019] like Figure 1-Figure 9 A stainless steel corroded reducer and its electric welding fixture shown, comprising a base 1, a brazing gun 33 is installed on both side surfaces of the base 1 through a fixing mechanism, a vertical pull-out plate 6 is installed on the upper surface of the base 1 through a vertical movement mechanism, two small rotating caps 8 and a large rotating cap 13 are installed on the upper surface of the vertical pull-out plate 6 through a supporting mechanism, a horizontal pull-out plate 21 is installed on the upper surface of the vertical pull-out plate 6 through a horizontal movement mechanism, a limited L-shaped plate 24 is installed on the upper surface of the horizontal pull-out plate 21 through a transfer mechanism, a trapezoidal silicone head 26 is installed on the limited L-shaped plate 24 through a rotation support mechanism, and a semi-annular silicone head 32 is installed on the side surface of the base 1 through a support and rotation mechanism; The supporting mechanism includes two small rotating columns 7 fixedly mounted on the upper surface of the vertical pull-out plate 6, and two small rotating caps 8 are movably mounted on the outer surfaces of the ports of the small rotating columns 7, a first circular baffle 9 is fixedly mounted on the outer side of the small rotating column 7, and the first circular baffle 9 is mounted on the outer side of the small rotating cap 8, two large rotating columns 12 are fixedly mounted on the upper surface of the vertical pull-out plate 6, and two large rotating caps 13 are movably mounted on the outer surfaces of the ports of the large rotating columns 12, a second circular baffle 14 is fixedly mounted on the outer side of the large rotating column 12, and the second circular baffle 14 is mounted on the outer side of the large rotating cap 13, and the small rotating cap 8 and the large rotating cap 13 are fitted on the outer surface of the reducer 35 to support the reducer 35.

[0020] A partition 17 is fixedly installed on the outer side of the first circular partition 9, two small support plates 10 are fixedly installed on the upper surface of the vertical pull-out plate 6, a first fixing hole 11 is opened inside the small support plate 10, and the small rotating column 7 is fixedly installed on the inner surface of the first fixing hole 11, and the small support plate 10 is installed on the inner side of the small rotating cap 8, two large support plates 15 are fixedly installed on the upper surface of the vertical pull-out plate 6, a second fixing hole 16 is opened inside the large support plate 15, and the large rotating column 12 is fixedly installed on the inner surface of the second fixing hole 16, and the large support plate 15 is installed Installed on the inner side of the large rotating cap 13, the reducer 35 is restricted by the partition 17 fixed behind the first circular partition 9 to prevent the reducer 35 from sliding down. The small rotating cap 8 and the large rotating cap 13 movably sleeved outside the small rotating column 7 and the large rotating column 12 limit the rotation range through the first circular partition 9, the second circular partition 14 and the small supporting plate 10 and the large supporting plate 15. When the reducer 35 rotates, the small rotating cap 8 and the large rotating cap 13 are driven to rotate, thereby reducing the friction between the reducer 35 and the small rotating cap 8 and the large rotating cap 13.

[0021] The fixing mechanism includes two side fixing plates 2 respectively fixedly installed on both sides of the base 1, a fixing plate 3 is fixedly installed on the rear surface of the two side fixing plates 2, a brazing gun 33 is fixedly installed on the front surface of the fixing plate 3, and the brazing gun 33 is fixedly installed above the large rotating cap 13. The brazing gun 33 is fixed to the middle seam where the round tube 34 and the reducer 35 are connected by the fixing mechanism, so it is convenient to braze the round tube 34 and the reducer 35. The brazing gun 33 contains brazing material, and the brazing gun 33 is an existing device, which will not be described in detail here.

[0022] The vertical movement mechanism includes two first slide rails 4 fixedly installed on one side of the upper surface of the base 1, a first slide 5 is movably installed on the inner surface of the first slide rail 4, and a vertical pull-out plate 6 is fixedly installed on the upper surface of the first slide 5. The first slide rail 4 and the first slide 5 cooperate to slide, so that the reducer 35 placed on the small rotating cap 8 and the large rotating cap 13 is moved under the brazing gun 33 to avoid insufficient space for movement after the round tube 34 is fixed, and the reducer 35 cannot be placed.

[0023] The transverse movement mechanism includes a support frame 18 fixedly mounted on one side of the upper surface of the base 1, and the support frame 18 is mounted on the outside of the small rotating cap 8. Two second slide rails 19 are fixedly mounted on the upper surface of the support frame 18. A second slide table 20 is movably mounted on the inner surface of the second slide rail 19, and a transverse pull-out plate 21 is fixedly mounted on the upper surface of the second slide table 20. The second slide rail 19 cooperates with the second slide table 20 to slide, thereby driving the transfer mechanism and the transfer support mechanism to move in and out laterally, so as to avoid the inability to remove the welded workpiece from the device after welding is completed.

[0024] The transfer mechanism includes a first rotating motor 22 fixedly mounted on the upper surface of the transverse pull-out plate 21, a rotating shaft 23 is fixedly mounted on the port of the first rotating motor 22, and a limiting L-shaped plate 24 is fixedly mounted at the inner port of the rotating shaft 23. The limiting L-shaped plate 24 is driven to rotate by the first rotating motor 22 to facilitate welding.

[0025] The rotating support mechanism includes two fixed shafts 27 that movably pass through both sides of the upper surface of the limiting L-shaped plate 24. A support plate 25 is movably sleeved on the outer surface of each fixed shaft 27, and the support plate 25 is movably installed between the limiting L-shaped plate 24 and the fixed shaft 27. The trapezoidal silicone head 26 is fixedly installed at the outer end of the support plate 25. After the trapezoidal silicone head 26 is moved into the reducer 35 and contacts the inner surface of the reducer 35, it is subjected to force. The support plate 25 drives the trapezoidal silicone head 26 to rotate outward with the fixed shaft 27 as the center. When the support plate 25 contacts the inner surface of the limiting L-shaped plate 24, the support plate 25 cannot move backward, thereby cooperating with the small rotating cap 8 to be firmly connected with the large rotating cap 13, so as to drive the reducer 35 to rotate through the connecting rotation mechanism.

[0026] The supporting and rotating mechanism includes an extension plate 28 fixedly installed on the front surface of one side fixing plate 2, and the extension plate 28 and the support frame 18 are respectively installed on both sides above the base 1, and a fixed L-shaped plate 29 is fixedly installed on the outer side of the extension plate 28, and a second rotating motor 30 is fixedly installed on the inner surface of the fixed L-shaped plate 29, and the second rotating motor 30 moves through the extension plate 28, and an annular fixing plate 31 is fixedly installed on the port of the second rotating motor 30, and two semi-annular silicone heads 32 are fixedly installed on the inner side of the annular fixing plate 31. The circular tube 34 is fixed by the two semi-annular silicone heads 32 fixed on the annular fixing plate 31, and the annular fixing plate 31 is driven to rotate by the second rotating motor 30 fixed on the inner surface of the fixed L-shaped plate 29.

[0027] During use, the outer surface of the semi-circular silicone head 32 is covered with a circular tube 34, and the vertical pull-out plate 6 is moved out through the first slide rail 4 and the first slide 5, and the reducer 35 is placed on the small rotating cap 8 and the large rotating cap 13, and the vertical pull-out plate 6 is moved into the device through the first slide rail 4 and the first slide 5, so that the circular tube 34 is aligned with the short diameter of the reducer 35, and the horizontal pull-out plate 21 is moved horizontally through the second slide rail 19 and the second slide 20, so as to drive the first rotating motor 22, the rotating shaft 23, and the limiting L-shaped plate 24 to move horizontally. After the limiting L-shaped plate 24 moves into the reducer 35, the trapezoidal silicone head 26 moved into the reducer 35 contacts the inner surface of the reducer 35 and is subjected to force, and the support plate 25 drives the trapezoidal silicone head 26 to rotate outward with the fixed shaft 27 as the center of the circle. When the support plate 25 drives the trapezoidal silicone head 26 to rotate outward, the support plate 25 drives the trapezoidal silicone head 26 to rotate outward with the fixed shaft 27 as the center of the circle. After the plate 25 contacts the inner surface of the limiting L-shaped plate 24, the support plate 25 cannot move backward, so as to cooperate with the small rotating cap 8 and the large rotating cap 13 to fix the reducer 35, and the round tube 34 and the reducer 35 are brazed at the seams by the brazing gun 33. At the same time, the first rotating motor 22 and the second rotating motor 30 rotate inward at a uniform speed to realize automatic brazing operation. Moreover, since the axes of the small rotating cap 8 and the large rotating cap 13 are parallel and the small rotating cap 8 and the large rotating cap 13 fit the outer surface of the reducer 35, the reducer 35 will not be displaced during rotation, resulting in incomplete welding. After welding is completed, the second slide rail 19 and the second slide table 20 drive the limiting L-shaped plate 24 to move laterally out of the interior of the workpiece, thereby removing the workpiece from the outer surface of the semi-annular silicone head 32.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above implementation cases. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A stainless steel corroded reducer and its electric welding fixture, comprising a base (1), characterized in that: The surfaces of both sides of the base (1) are provided with brazing guns (33) via a fixing mechanism; the upper surface of the base (1) is provided with a vertical pull-out plate (6) via a vertical displacement mechanism; the upper surface of the vertical pull-out plate (6) is provided with two small rotating caps (8) and a large rotating cap (13) via a supporting mechanism; the upper surface of the vertical pull-out plate (6) is provided with a horizontal pull-out plate (21) via a horizontal displacement mechanism; the upper surface of the horizontal pull-out plate (21) is provided with a limited position L-shaped plate (24) via a transfer mechanism; the limited position L-shaped plate (24) is provided with a trapezoidal silicone head (26) via a rotation support mechanism; and the side surface of the base (1) is provided with a semi-circular silicone head (32) via a rotation support mechanism; The support mechanism comprises two small rotating columns (7) fixedly mounted on the upper surface of the vertical pull-out plate (6), and the two small rotating caps (8) are respectively movably mounted on the outer surface of the port of the small rotating columns (7), a first circular baffle (9) is fixedly mounted on the outer side of the small rotating column (7), and the first circular baffle (9) is mounted on the outer side of the small rotating cap (8), two large rotating columns (12) are fixedly mounted on the upper surface of the vertical pull-out plate (6), and the two large rotating caps (13) are respectively movably mounted on the outer surface of the port of the large rotating column (12), a second circular baffle (14) is fixedly mounted on the outer side of the large rotating column (12), and the second circular baffle (14) is mounted on the outer side of the large rotating cap (13).

2. A stainless steel corrosion reducer and its electric welding fixture according to claim 1, characterized in that: A partition plate (17) is fixedly mounted on the outer side of the first circular partition plate (9); two small support plates (10) are fixedly mounted on the upper surface of the vertical pull-out plate (6); a first fixing hole (11) is provided inside the small support plate (10); the small rotating column (7) is fixedly mounted on the inner surface of the first fixing hole (11); and the small support plate (10) is mounted on the inner side of the small rotating cap (8); two large support plates (15) are fixedly mounted on the upper surface of the vertical pull-out plate (6); a second fixing hole (16) is provided inside the large support plate (15); the large rotating column (12) is fixedly mounted on the inner surface of the second fixing hole (16); and the large support plate (15) is mounted on the inner side of the large rotating cap (13); and the outer surface of the reducer (35) is supported by the small rotating cap (8) and the large rotating cap (13).

3. A stainless steel corrosion reducer and its electric welding fixture according to claim 1, characterized in that: The fixing mechanism comprises two side fixing plates (2) respectively fixedly mounted on two sides of the base (1), a fixing plate (3) being fixedly mounted on the rear surfaces of the two side fixing plates (2), a brazing gun (33) being fixedly mounted on the front surface of the fixing plate (3), and the brazing gun (33) being fixedly mounted above the large rotating cap (13).

4. A stainless steel corrosion reducer and its electric welding fixture according to claim 1, characterized in that: The vertical movement mechanism comprises two first slide rails (4) fixedly mounted on one side of the upper surface of the base (1); a first slide platform (5) is movably mounted on the inner surface of the first slide rails (4); and the vertical pull-out plate (6) is fixedly mounted on the upper surface of the first slide platform (5).

5. A stainless steel corrosion reducer and its electric welding fixture according to claim 4, characterized in that: The transverse movement mechanism comprises a support frame (18) fixedly mounted on one side of the upper surface of the base (1), and the support frame (18) is mounted on the outside of the small rotating cap (8), two second slide rails (19) are fixedly mounted on the upper surface of the support frame (18), a second slide table (20) is movably mounted on the inner surface of the second slide rail (19), and the transverse pull-out plate (21) is fixedly mounted on the upper surface of the second slide table (20).

6. A stainless steel corrosion reducer and its electric welding fixture according to claim 1, characterized in that: The transfer mechanism comprises a first rotating motor (22) fixedly mounted on the upper surface of the transverse pull-out plate (21), a rotating shaft (23) being fixedly mounted on a port of the first rotating motor (22), and the limiting L-shaped plate (24) being fixedly mounted on an inner port of the rotating shaft (23).

7. A stainless steel corrosion reducer and its electric welding fixture according to claim 6, characterized in that: The rotating support mechanism comprises two fixed shafts (27) movably penetrating the upper surface of the limiting L-shaped plate (24) on both sides, and a support plate (25) is movably sleeved on the outer surface of each fixed shaft (27), and the support plate (25) is movably installed between the limiting L-shaped plate (24) and the fixed shaft (27), and the trapezoidal silicone head (26) is fixedly installed on the outer end of the support plate (25).

8. A stainless steel corrosion reducer and its electric welding fixture according to claim 3, characterized in that: The supporting and rotating mechanism comprises an extension plate (28) fixedly mounted on the front surface of a side fixing plate (2), and the extension plate (28) and the supporting frame (18) are respectively mounted on both sides above the base (1), a fixed L-shaped plate (29) is fixedly mounted on the outer side of the extension plate (28), a second rotating motor (30) is fixedly mounted on the inner surface of the fixed L-shaped plate (29), and the second rotating motor (30) movably passes through the extension plate (28), an annular fixing plate (31) is fixedly mounted on the port of the second rotating motor (30), and two semi-annular silicone heads (32) are fixedly mounted on the inner side of the annular fixing plate (31).