High-voltage switch shell and longitudinal seam automatic welding device thereof

Abstract

The invention discloses a high-voltage switch shell and a longitudinal seam automatic welding device thereof, and relates to the technical field of high-voltage switch shell welding, the high-voltage switch shell comprises a welding machine body, a double-gas mixing mechanism and a detection protection mechanism, the bottom of the inner wall of the welding machine body is slidably connected with a control seat, and the top of the control seat is provided with a switch shell body; the detection protection mechanism is located on the front side of the double-gas mixing mechanism, and through the arrangement of the double-gas mixing mechanism, when airflow passes through the rotating ring frame, flapping force can be generated on the passing airflow, so that the flowing direction of the shielding gas airflow is changed, the mixing speed of double shielding gases in the gas outlet channel is increased, the shielding gases are more uniform, and the shielding effect is better. In the welding process, the uniform shielding gas can effectively prevent welding seams from being polluted by impurities such as oxygen and nitrogen in air, so that the welding quality is improved, the optimized airflow distribution enables the welding process to be more stable, and the situation of welding interruption or quality reduction caused by uneven airflow is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage switch housing welding, in particular to a high-voltage switch housing and an automatic longitudinal seam welding device thereof. Background Art

[0002] The high-voltage switch housing is a key component of the high-voltage switchgear, which protects the internal components and isolates the external environment. It is usually made of high-quality aluminum alloy, with high mechanical strength and good electrical and thermal conductivity. The design of the housing must meet the requirements of electrical insulation, mechanical strength, corrosion resistance, etc. to ensure the normal operation and long-term stability of the high-voltage switchgear. During the production of the high-voltage switch housing, the longitudinal seam of the high-voltage switch housing needs to be automatically welded by a welding device.

[0003] When the existing high-voltage switch housing longitudinal seam automatic welding device is in use, the high-voltage switch housing is placed on a conveying control console, and the high-voltage switch housing is conveyed to the bottom of the welding head. The conveying table controls the movement of the high-voltage switch housing and the coordination with the welding head to achieve the longitudinal seam welding of the high-voltage switch housing.

[0004] When the welding head welds the high-voltage switch housing, some welding heads will connect double shielding gas to the welding head through the air intake pipe in order to improve the quality and stability of welding. However, when the welding equipment has been used for too long, the air intake control system will have a control failure, resulting in poor mixing effect of the double shielding gas or too fast air intake speed. Uneven mixing of the shielding gas will lead to uneven heat distribution during welding, and defects such as pores and inclusions may appear inside the weld, thereby reducing the strength and toughness of the weld. If the air outlet speed is too fast, the gas flow rate in the welding area will increase, resulting in waste. At the same time, it will accelerate the cooling speed inside the weld, causing defects such as cracks and embrittlement in the weld, thereby reducing the mechanical properties of the weld.

[0005] Therefore, the present invention proposes a high-voltage switch housing and an automatic longitudinal seam welding device thereof to solve the above problems. Summary of the invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a high-voltage switch housing and an automatic longitudinal seam welding device thereof to solve the problems of poor shielding gas mixing effect and excessive gas outlet speed during welding in the prior art.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-voltage switch housing and an automatic longitudinal seam welding device thereof, comprising a welding body, a control seat being slidably connected to the bottom of the inner wall of the welding body, a switch housing body being arranged on the top of the control seat, and also comprising: a dual-gas mixing mechanism and a detection and protection mechanism, wherein the detection and protection mechanism is located on the front side of the dual-gas mixing mechanism; the dual-gas mixing mechanism is used to stir the protective gas, and the detection and protection mechanism is used to detect the flow rate of the protective gas.

[0008] Preferably, a welding table is fixedly connected to the top of the welding body, a welding head body is arranged at the bottom of the welding table, the welding head body passes through the top of the welding body, an air inlet pipe is fixedly connected to the outer surface of the welding head body, a welding tungsten electrode is fixedly connected to the inner surface of the welding head body, and an air outlet channel is opened at the bottom of the welding head body.

[0009] Preferably, the dual-gas mixing mechanism includes a sealing box, which is fixedly connected to the outer surface of the welding head body, a wind wheel is rotatably connected inside the sealing box, one side of the wind wheel passes through the welding head body, a rotating ring frame is rotatably connected to the inner surface of the air outlet channel, and toggle blocks are equidistantly fixedly connected to the inner surface of the rotating ring frame.

[0010] Preferably, a connecting column is fixedly connected to the top of the rotating ring frame, a reciprocating column is slidably connected to the outer surface of the welding head body, one end of the reciprocating column located in the welding head body is fixedly connected to a pushing sleeve, and the pushing sleeve is slidably connected to the connecting column.

[0011] Preferably, a reciprocating screw rod is rotatably connected to one side of the sealing box, one end of the reciprocating screw rod is fixedly connected to the wind wheel, a connecting slider is provided on the outer surface of the reciprocating screw rod, one side of the connecting slider is fixedly connected to a support rod, and the support rod is fixedly connected to the reciprocating column.

[0012] Preferably, the detection and protection mechanism includes a connecting shaft, which passes through and is rotatably connected to one side of the sealing box, one end of the connecting shaft is fixedly connected to the wind wheel, and the other end of the connecting shaft is fixedly connected to a rotating disk, a centrifugal push rod is slidably connected in the rotating disk, and a tension spring is fixedly connected between the centrifugal push rod and the rotating disk.

[0013] Preferably, an outer surface of the welding head body is fixedly connected to an exhaust box, one side of the exhaust box is fixedly connected to an exhaust pipe, and a fixing plate is fixedly connected inside the exhaust box.

[0014] Preferably, a sliding plate is slidably connected through one side of the exhaust box, and connecting holes are equidistantly provided through one side of the fixed plate and the sliding plate.

[0015] Preferably, a pressure block is fixedly connected to the side of the sliding plate close to the rotating disk, and one side of the pressure block is set as an arc surface. A first electrical contact is fixedly connected to the side of the sliding plate away from the rotating disk, and a second electrical contact is fixedly connected to the outer surface of the welding head body, and the first electrical contact and the second electrical contact are electrically connected.

[0016] Compared with the prior art, the present invention provides a high-voltage switch housing and an automatic longitudinal seam welding device thereof, which have the following beneficial effects: 1. Through the setting of a dual-gas mixing mechanism, when the airflow passes between the rotating ring frames, the reciprocating rotation of the toggle block can generate a slapping force on the passing airflow, thereby changing the flow direction of the shielding gas flow, accelerating the mixing speed of the dual shielding gases in the air outlet channel, and making the shielding gas more uniform. During the welding process, the uniform shielding gas can effectively prevent the weld from being contaminated by impurities such as oxygen and nitrogen in the air, thereby improving the welding quality. The optimized airflow distribution makes the welding process more stable and reduces the welding interruption or quality degradation caused by uneven airflow.

[0017] In addition, through the cooperation of the wind wheel, reciprocating screw and connecting slider, the impact generated by the airflow is used to drive the reciprocating swing of the toggle block, thereby completing the mixing and stirring of the protective gas to avoid the use of motors or other external power sources. This can not only simplify the system structure, but also reduce energy consumption and costs. At the same time, through the setting of the toggle block, the toggle block is arc-shaped. The arc-shaped structure allows the airflow to pass through. The arc-shaped toggle block design can guide the airflow to flow along a specific path, reduce the generation of eddies and turbulence, and thus reduce energy loss.

[0018] 2. By setting up the detection protection mechanism, when the flow rate of the shielding gas increases, the centrifugal force is utilized to make the first electrical contact and the second electrical contact contact and make the external alarm sound an alarm, so that after hearing the alarm, the staff can promptly discover the problem of excessive flow rate of the shielding gas in the welding head body and respond in time to avoid potential safety risks or damages. Compared with the existing alarm, no additional power energy is required to maintain the detection, which reduces the cost of detection.

[0019] In addition, by setting up the pressure block, sliding plate and connecting hole, the flow speed and flow rate of the airflow in the welding head body can be slowed down before the staff comes to repair, which not only reduces the waste of shielding gas, but also avoids the problem of accelerated cooling speed inside the weld due to increased flow rate, cracking and embrittlement of the weld and reduction of the mechanical properties of the weld, further improving the stability and safety of the welding head body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 For the present invention Figure 1 Middle upward view of the structure.

[0022] Figure 3 This is a three-dimensional structural diagram of the welding head body of the present invention.

[0023] Figure 4 This is a cross-sectional structural diagram of the welding head body of the present invention.

[0024] Figure 5 It is a partial three-dimensional structural diagram of the welding head body of the present invention.

[0025] Figure 6 It is a cross-sectional structural diagram of the sealing box of the present invention.

[0026] Figure 7 It is a three-dimensional structural diagram of the exhaust box of the present invention.

[0027] Figure 8 It is a transverse cross-sectional structural diagram of the exhaust box of the present invention.

[0028] Fig. 9 It is a vertical cross-sectional structural diagram of the exhaust box of the present invention.

[0029] In the figure: 1. welding body; 11. control seat; 12. welding table; 13. welding head body; 131. welding tungsten electrode; 132. air outlet channel; 14. air inlet pipe; 2. switch housing body.

[0030] 301, sealing box; 302, wind wheel; 303, rotating ring frame; 304, toggle block; 305, connecting column; 306, pushing sleeve; 307, reciprocating column; 308, supporting rod; 309, reciprocating screw rod; 310, connecting slider.

[0031] 401, connecting shaft; 402, rotating disk; 403, centrifugal push rod; 404, tension spring; 405, exhaust box; 406, exhaust pipe; 407, fixed plate; 408, sliding plate; 409, connecting hole; 410, pressure block; 411, first electrical contact; 412, second electrical contact. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0034] Embodiments of the present invention: Please refer to Figures 1 to 9 As shown: In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a high-voltage switch housing and an automatic longitudinal seam welding device thereof, including a welding body 1, a control seat 11 is slidably connected to the bottom of the inner wall of the welding body 1, and a switch housing body 2 is arranged on the top of the control seat 11, and also includes: a dual-gas mixing mechanism and a detection and protection mechanism, the detection and protection mechanism is located on the front side of the dual-gas mixing mechanism; the dual-gas mixing mechanism is used to stir the protective gas, and the detection and protection mechanism is used to detect the flow rate of the protective gas.

[0035] A welding table 12 is fixedly connected to the top of the welding body 1, a welding head body 13 is arranged at the bottom of the welding table 12, the welding head body 13 passes through the top of the welding body 1, an air inlet pipe 14 is fixedly connected to the outer surface of the welding head body 13, a welding tungsten electrode 131 is fixedly connected to the inner surface of the welding head body 13, and an air outlet channel 132 is opened at the bottom of the welding head body 13.

[0036] The dual-gas mixing mechanism includes a sealing box 301, which is fixedly connected to the outer surface of the welding head body 13, a wind wheel 302 is rotatably connected inside the sealing box 301, one side of the wind wheel 302 passes through the welding head body 13, a rotating ring frame 303 is rotatably connected to the inner surface of the air outlet channel 132, a toggle block 304 is equidistantly fixedly connected to the inner surface of the rotating ring frame 303, a connecting column 305 is fixedly connected to the top of the rotating ring frame 303, and a reciprocating sliding connection is passed through the outer surface of the welding head body 13. Column 307, one end of the reciprocating column 307 located in the welding head body 13 is fixedly connected with a pushing sleeve 306, the pushing sleeve 306 is slidably sleeved with the connecting column 305, a reciprocating screw rod 309 is rotatably connected to one side of the sealing box 301, one end of the reciprocating screw rod 309 is fixedly connected to the wind wheel 302, and a connecting slider 310 is provided on the outer surface of the reciprocating screw rod 309 through a threaded sleeve, and a support rod 308 is fixedly connected to one side of the connecting slider 310, and the support rod 308 is fixedly connected to the reciprocating column 307.

[0037] The switch housing body 2 is placed on the upper surface of the control seat 11 , and the control seat 11 can transport the switch housing body 2 to the bottom of the welding head body 13 and drive the switch housing body 2 to rotate, and finally weld the switch housing body 2 through the cooperation of the control seat 11 and the welding head body 13 .

[0038] Among them, the bottom of the welding head body 13 is evenly and equidistantly provided with gas outlet holes, and the rotating ring frame 303 is arranged in the middle of the gas outlet channel 132, and the stirring of the rotating ring frame 303 does not affect the normal and uniform gas outlet of the protective gas.

[0039] In the prior art, when the welding head welds the high-voltage switch housing, some welding heads will introduce double shielding gas into the welding head through the air intake pipe 14 in order to improve the quality and stability of welding. However, when the welding equipment has been used for too long, the air intake control system will have a control failure, resulting in poor mixing effect of the double shielding gas or too fast air intake speed. Uneven mixing of the shielding gas will lead to uneven heat distribution during welding, and defects such as pores and inclusions may be generated inside the weld, thereby reducing the strength and toughness of the weld. If the air outlet speed is too fast, the gas flow rate in the welding area will increase, causing waste. At the same time, the cooling speed inside the weld will be accelerated, and defects such as cracks and brittleness will occur in the weld, reducing the mechanical properties of the weld. Compared with the prior art, the implementation of this embodiment enables the airflow to generate a flapping force on the passing airflow through the reciprocating rotation of the toggle block 304 when the airflow passes between the rotating ring frames 303, thereby changing the airflow of the shielding gas. Flow direction, accelerates the mixing speed of the double shielding gases in the outlet channel 132, making the shielding gases more uniform. During the welding process, the uniform shielding gas can effectively prevent the weld from being contaminated by impurities such as oxygen and nitrogen in the air, thereby improving the welding quality. The optimized airflow distribution makes the welding process more stable and reduces the welding interruption or quality degradation caused by uneven airflow. Through the cooperation of the wind wheel 302, the reciprocating screw 309 and the connecting slider 310, the impact generated by the airflow is used to drive the reciprocating swing of the toggle block 304, thereby completing the mixing and stirring of the shielding gas to avoid the use of a motor or other external power source. This can not only simplify the system structure, but also reduce energy consumption and cost. At the same time, through the setting of the toggle block 304, the toggle block 304 is arc-shaped. Through the arc-shaped structure, when the airflow passes through, the arc-shaped toggle block 304 design can guide the airflow to flow along a specific path, reduce the generation of eddy currents and turbulence, and thus reduce energy loss.

[0040] For further examples, please refer to Figures 1 to 9 As shown: the detection and protection mechanism includes a connecting shaft 401, the connecting shaft 401 passes through and is rotatably connected to one side of the sealing box 301, one end of the connecting shaft 401 is fixedly connected to the wind wheel 302, the other end of the connecting shaft 401 is fixedly connected to a rotating disk 402, a centrifugal push rod 403 is slidably connected inside the rotating disk 402, a tension spring 404 is fixedly connected between the centrifugal push rod 403 and the rotating disk 402, an outer surface of the welding head body 13 is fixedly connected to an exhaust box 405, one side of the exhaust box 405 is fixedly connected to an exhaust pipe 406, a fixed plate 407 is fixedly connected inside the exhaust box 405, a sliding plate 408 is slidably connected to one side of the exhaust box 405, and connecting holes 409 are equidistantly opened on one side of the fixed plate 407 and the sliding plate 408.

[0041] A pressure block 410 is fixedly connected to one side of the sliding plate 408 close to the rotating disk 402, and one side of the pressure block 410 is set as an arc surface. A first electrical contact 411 is fixedly connected to one side of the sliding plate 408 away from the rotating disk 402, and a second electrical contact 412 is fixedly connected to the outer surface of the welding head body 13. The first electrical contact 411 and the second electrical contact 412 are electrically connected.

[0042] The exhaust pipe 406 is connected to an external gas collection device, and can collect the protective gas when the detection and protection mechanism is turned on to prevent the waste of the protective gas.

[0043] The implementation of this embodiment can timely discover the problem of excessive flow speed of the shielding gas in the welding head body 13, and respond in time to avoid potential safety risks or damages. Compared with the existing alarm, no additional power energy is required to maintain the detection, which reduces the cost of detection. In addition, through the arrangement of the pressure block 410, the sliding plate 408 and the connecting hole 409, the flow speed and flow rate of the airflow in the welding head body 13 can be slowed down before the staff comes for maintenance, which not only reduces the waste of shielding gas, but also avoids the problem of accelerated cooling speed inside the weld due to increased flow rate, cracking and embrittlement of the weld and reduced mechanical properties of the weld, further improving the stability and safety of the welding head body 13 when in use.

[0044] The working principles of all the contents in the above embodiments are as follows: in the initial state: the tension spring 404 is in a normal state, the pressure block 410 is not on the rotation track of the centrifugal push rod 403, and the connecting holes 409 opened on the sliding plate 408 and the fixed plate 407 are in a staggered state. At this time, the exhaust box 405 is in a closed state, and the first electrical contact 411 is not in contact with the second electrical contact 412, the air inlet pipe 14 is connected to an external protective gas transmission device, the exhaust pipe 406 is connected to an external gas collection device, and the second electrical contact 412 is electrically connected to an external alarm, so that the first electrical contact 411 and the second electrical contact 412 are electrically connected to control the opening and closing of the external alarm.

[0045] The following is the working process of the dual-gas mixing mechanism: when welding, the shielding gas enters the gas outlet channel 132 from the gas inlet pipe 14, and then is ejected from the bottom of the gas outlet channel 132. Therefore, when the tungsten electrode 131 is welded, the dual-shielding mixed gas ejected from the bottom of the gas outlet channel 132 isolates and protects the welding area generated by the tungsten electrode 131, thereby improving the stability during welding.

[0046] When the airflow passes through the welding head body 13, the impact of the airflow can drive the wind wheel 302 to rotate. When the wind wheel 302 rotates, the reciprocating screw rod 309 is also driven to rotate. Since the connecting slider 310 is threadedly sleeved with the reciprocating screw rod 309, the connecting slider 310 is slidably connected to the welding head body 13 through the support rod 308 and the reciprocating column 307, the rotation of the reciprocating screw rod 309 drives the connecting slider 310, the support rod 308 and the reciprocating column 307 to reciprocate, and then the reciprocating column 307 drives the pushing sleeve 306 to reciprocate. Since the pushing sleeve 306 is slidably sleeved with the connecting column 305, when the pushing sleeve 306 reciprocates, the connecting column 305 can be pushed or pulled so that the connecting column 305 drives the rotating ring frame 303 to reciprocate while the pushing sleeve 306 slides. When the rotating ring frame 303 reciprocates, the rotating ring frame 303 drives the toggle block 304 to reciprocate.

[0047] By setting up the dual-gas mixing mechanism, when the airflow passes through the rotating ring frame 303, the reciprocating rotation of the toggle block 304 can generate a flapping force on the passing airflow, thereby changing the flow direction of the shielding gas flow, accelerating the mixing speed of the dual shielding gases in the air outlet channel 132, and making the shielding gas more uniform. During the welding process, the uniform shielding gas can effectively prevent the weld from being contaminated by impurities such as oxygen and nitrogen in the air, thereby improving the welding quality. The optimized airflow distribution makes the welding process more stable and reduces the welding interruption or quality degradation caused by uneven airflow.

[0048] In addition, through the cooperation of the wind wheel 302, the reciprocating screw 309 and the connecting slider 310, the impact generated by the airflow is used to drive the reciprocating swing of the toggle block 304, thereby completing the mixing and stirring of the protective gas to avoid the use of a motor or other external power source. This can not only simplify the system structure, but also reduce energy consumption and costs. At the same time, through the setting of the toggle block 304, the toggle block 304 is arc-shaped. Through the arc-shaped structure, when the airflow passes through, the arc-shaped toggle block 304 design can guide the airflow to flow along a specific path, reduce the generation of eddies and turbulence, and thus reduce energy loss.

[0049] Please refer to the above working process Figures 1 to 9 .

[0050] The following is the working process of the detection protection mechanism: further, when the speed of the shielding gas entering the welding head body 13 from the air inlet pipe 14 is accelerated due to damage to the shielding gas control system of the welding body 1, the air flow speed in the welding head body 13 will also be accelerated, and the flow rate will also increase, thereby driving the wind wheel 302, the connecting shaft 401 and the rotating disk 402 to rotate faster, and the centrifugal force increases. The increased centrifugal force causes the centrifugal push rod 403 to slide outward a greater distance, and the tension spring 404 is stretched. At this time, the pressure block 410 is located on the rotation trajectory of the centrifugal push rod 403, and then When the centrifugal push rod 403 rotates, it squeezes one arc-shaped end of the pressure block 410, causing the pressure block 410 to move away from the rotating disk 402, driving the sliding plate 408 to move toward the second electrical contact 412, the first electrical contact 411 contacts the second electrical contact 412 and controls the external alarm to sound an alarm, and the connecting holes 409 opened on the fixed plate 407 and the sliding plate 408 coincide with each other. At this time, the welding head body 13 is connected to the external airflow collection device through the exhaust box 405 and the exhaust pipe 406, so that the original high-speed airflow in the welding head body 13 can be diverted.

[0051] By detecting the setting of the protection mechanism, when the flow rate of the protective gas increases, the centrifugal force is utilized to make the first electrical contact 411 and the second electrical contact 412 contact and cause the external alarm to sound an alarm, so that after hearing the alarm, the staff can promptly discover the problem of excessive flow rate of the protective gas in the welding head body 13 and take timely response measures to avoid potential safety risks or damages. Compared with the existing alarm, no additional power energy is required during detection, thereby reducing the cost of detection.

[0052] Furthermore, by providing the pressure block 410, the sliding plate 408 and the connecting hole 409, the flow velocity and flow rate of the airflow in the welding head body 13 can be slowed down before the staff arrives for maintenance, which not only reduces the waste of the shielding gas, but also avoids the problem of accelerated cooling speed inside the weld due to increased flow rate, cracking and embrittlement of the weld, and reduction of the mechanical properties of the weld, thereby further improving the stability and safety of the welding head body 13 during use.

[0053] Please refer to the above working process Figures 1 to 9 .

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage switch housing and an automatic longitudinal seam welding device thereof, comprising a welding body (1), wherein a control seat (11) is slidably connected to the bottom of the inner wall of the welding body (1), and a switch housing body (2) is arranged on the top of the control seat (11), characterized in that: It also includes: a dual-gas mixing mechanism and a detection and protection mechanism, wherein the detection and protection mechanism is located in front of the dual-gas mixing mechanism; the dual-gas mixing mechanism is used to stir the protective gas, and the detection and protection mechanism is used to detect the flow rate of the protective gas.

2. A high voltage switch housing and an automatic longitudinal seam welding device according to claim 1, characterized in that: The top of the welding machine body (1) is fixedly connected to a welding platform (12), the bottom of the welding platform (12) is provided with a welding head body (13), the welding head body (13) passes through the top of the welding machine body (1), the outer surface of the welding head body (13) is fixedly connected to an air inlet pipe (14), the inner surface of the welding head body (13) is fixedly connected to a welding tungsten electrode (131), and the bottom of the welding head body (13) is provided with an air outlet channel (132).

3. A high voltage switch housing and an automatic longitudinal seam welding device thereof according to claim 2, characterized in that: The dual-gas mixing mechanism comprises a sealing box (301), the sealing box (301) being fixedly connected to the outer surface of a welding head body (13), a wind wheel (302) being rotatably connected inside the sealing box (301), one side of the wind wheel (302) penetrating the welding head body (13), a rotating ring frame (303) being rotatably connected to the inner surface of the air outlet channel (132), and a toggle block (304) being equidistantly fixedly connected to the inner surface of the rotating ring frame (303).

4. A high voltage switch housing and an automatic longitudinal seam welding device thereof according to claim 3, characterized in that: A connecting column (305) is fixedly connected to the top of the rotating ring frame (303), a reciprocating column (307) is slidably connected to the outer surface of the welding head body (13), and a pushing sleeve (306) is fixedly connected to one end of the reciprocating column (307) located inside the welding head body (13), and the pushing sleeve (306) is slidably sleeved with the connecting column (305).

5. A high voltage switch housing and an automatic longitudinal seam welding device thereof according to claim 4, characterized in that: A reciprocating screw rod (309) is rotatably connected to one side of the sealing box (301), one end of the reciprocating screw rod (309) is fixedly connected to the wind wheel (302), a connecting slider (310) is threadedly sleeved on the outer surface of the reciprocating screw rod (309), one side of the connecting slider (310) is fixedly connected to a support rod (308), and the support rod (308) is fixedly connected to the reciprocating column (307).

6. A high voltage switch housing and an automatic longitudinal seam welding device thereof according to claim 3, characterized in that: The detection and protection mechanism comprises a connecting shaft (401), the connecting shaft (401) passing through and rotatably connected to one side of the sealing box (301), one end of the connecting shaft (401) being fixedly connected to the wind wheel (302), the other end of the connecting shaft (401) being fixedly connected to a rotating disk (402), a centrifugal push rod (403) being slidably connected inside the rotating disk (402), and a tension spring (404) being fixedly connected between the centrifugal push rod (403) and the rotating disk (402).

7. A high voltage switch housing and an automatic longitudinal seam welding device thereof according to claim 6, characterized in that: The outer surface of the welding head body (13) is fixedly connected to an exhaust box (405), one side of the exhaust box (405) is fixedly connected to an exhaust pipe (406), and a fixing plate (407) is fixedly connected inside the exhaust box (405).

8. A high voltage switch housing and an automatic longitudinal seam welding device thereof according to claim 7, characterized in that: A sliding plate (408) is slidably connected through one side of the exhaust box (405), and communication holes (409) are equidistantly provided through one side of the fixed plate (407) and the sliding plate (408).

9. A high voltage switch housing and an automatic longitudinal seam welding device thereof according to claim 8, characterized in that: A pressure block (410) is fixedly connected to one side of the sliding plate (408) close to the rotating disk (402), and one side of the pressure block (410) is set as an arc surface. A first electrical contact (411) is fixedly connected to one side of the sliding plate (408) away from the rotating disk (402). A second electrical contact (412) is fixedly connected to the outer surface of the welding head body (13), and the first electrical contact (411) and the second electrical contact (412) are electrically connected.

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