A precise and fast welding device for installing electromechanical equipment

Abstract

The present invention relates to the technical field of welding equipment, and discloses a precise and fast welding device for installing electromechanical equipment, comprising a handle and a gun head, a gun mouth and a gun tail respectively arranged at both ends of the gun head, a fixed sleeve arranged inside the gun mouth, a needle clamp arranged inside the fixed sleeve, a tungsten needle arranged inside the needle clamp, and also comprising a swinging assembly arranged inside the handle and the gun head, wherein the swinging assembly specifically comprises a first rotating shaft arranged between the gun head and the fixed sleeve. The precise and fast welding device for installing electromechanical equipment, by providing a swinging assembly, controls the fixed sleeve to start swinging by rotating a third rotating shaft during welding, and the fixed sleeve drives the needle tip of the tungsten needle to swing at the opening of the gun mouth, thereby achieving the same effect as shaking the gun, ensuring the welding quality. At the same time, during this process, the welding master only needs to pay attention to the stability of the gun movement, and the requirements for skills and proficiency are reduced, making the welding process simpler and more portable, and achieving fast and precise welding.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to a precise and fast welding device for installing electromechanical equipment. Background Art

[0002] Electromechanical equipment, consisting of a combination of mechanical and electrical components, is widely used in a variety of fields, including manufacturing, construction, and transportation. Mechanical processing techniques include casting, milling, cutting, and welding. Among welding processes, argon arc welding (TIAW) is the most widely used due to its high speed, deep penetration, excellent welding protection, and minimal weld defects.

[0003] Argon arc welding equipment generally consists of three main components: a battery, a welding gun, and a welding needle. During operation, the arc generated between the welding needle and the workpiece melts the workpiece to form a welding pool; at the same time, argon gas is ejected from the welding gun nozzle to form an inert gas protective layer around the arc, isolating the air (oxygen, nitrogen, etc.) from the oxidation and nitridation of the molten pool and high-temperature metal, thereby obtaining high-quality, high-purity welds.

[0004] The existing technology has the following defects:

[0005] During the welding process, in order to improve the welding quality and form "fish scale patterns", it is necessary to use the welding technique of "shaking the gun" or "cranking the handle". Specifically, the welding gun is placed on the weld seam, and the welding needle is shaken back and forth through the welding gun during the movement of the gun to form a wide weld pool, and the patterns in the weld pool are fish scale-like. Since it takes a long time to practice proficiently to use "shaking the gun", the learning cost is high, and the gun is prone to slippage during the shaking process, resulting in local deviation of the welding route and irregular weld pool, which affects the welding quality.

[0006] When there is a certain angle between the welding workpieces, the welding gun can be placed at the angle of the workpieces to reduce the probability of gun slippage. However, if the welding workpieces are arranged in parallel, there is only a narrow gap between the two, which cannot provide good guidance for the welding gun, resulting in an increased frequency of gun slippage. Summary of the Invention

[0007] In view of the problem of gun sliding that may occur during welding in the prior art, a precise and fast welding device for the installation of electromechanical equipment is proposed.

[0008] The present application provides a precise and fast welding device for the installation of electromechanical equipment, the purpose of which is to reduce the probability of the occurrence of sliding guns.

[0009] The technical solution of the present invention is: a precise and fast welding device for installing electromechanical equipment, comprising a handle and a gun head, a gun mouth and a gun tail respectively arranged at both ends of the gun head, a fixed sleeve arranged inside the gun mouth, a needle clamp arranged inside the fixed sleeve, a tungsten needle arranged inside the needle clamp, and also comprising a swing assembly arranged inside the handle and the gun head, the swing assembly specifically comprising a first rotating shaft arranged between the gun head and the fixed sleeve, a first rocking arm arranged at one end of the fixed sleeve close to the gun tail, a second rocking arm arranged inside the handle, a second rotating shaft arranged between the second rocking arm and the handle, a driven rod arranged at the bottom of the second rotating shaft, a third rotating shaft arranged on the inner wall of the handle, an offset groove arranged at one end of the third rotating shaft away from the inner wall of the handle, a transmission rod arranged on the outer side of the turntable, and a connecting rod arranged between the transmission rod and the driven rod;

[0010] The second rocker is provided with a "U"-shaped opening at one end close to the first rocker, and the "U"-shaped opening is sleeved on the outside of the first rocker. The third rotating shaft extends out of the handle, and the connecting rod is divided into two left and right sections, and the two sections are rotatably connected.

[0011] Furthermore, the swing assembly further includes a control handle provided at one end of the handle extending from the third rotating shaft, a control groove provided on the surface of the handle, a sliding groove provided on the side of the control handle, and a sliding rod provided between the control groove and the sliding groove;

[0012] The sliding groove covers the opening of the control groove, and the width of the control groove is larger than the sliding groove. The sliding rod is threadedly connected to the sliding groove and slidably connected to the control groove.

[0013] Furthermore, a triangular bayonet is provided at one end of the control slot away from the third rotating shaft.

[0014] Furthermore, the second rocker and the turntable are both arranged close to the inner wall contour of the handle.

[0015] Furthermore, a guide assembly is provided on the outside of the gun nozzle, and the guide assembly specifically includes a rotating sleeve provided on the outside of the gun nozzle, a rotating frame provided on the outside of the rotating sleeve, a strip frame provided on the inside of the rotating frame, a guide pin provided on the inside of the strip frame, and a fixed shaft provided between the strip frame and the guide pin;

[0016] The guide needle rotates around the fixed axis, and a damping washer is arranged between the two, and the needle tip of the guide needle is located at the bottom end.

[0017] Furthermore, the guide needle is designed to be tilted when in use, and the angle between the guide needle and the tungsten needle is an acute angle.

[0018] Furthermore, the guide assembly further comprises a sliding sleeve arranged on the outside of the strip frame, and an offset groove arranged on the outside of the guide pin;

[0019] The length of the offset groove is greater than the diameter of the fixed shaft, so that the fixed shaft slides in the offset groove. The upper and lower thicknesses of the strip frame are not less than the thickness of the guide pin, and the length of the strip frame is greater than the guide pin.

[0020] Furthermore, the guide assembly further comprises a card slot provided on the outside of the guide pin and a card platform provided on the bottom of the sliding sleeve;

[0021] The card slot adopts a "step-shaped" design, and the card platform protrudes downward and is engaged in the card slot.

[0022] Furthermore, the guide assembly further comprises a rotation groove provided on the outside of the gun nozzle, through which a locking bolt provided on the outside of the rotating sleeve is inserted;

[0023] The rotating groove is annular, and the locking bolt passes through the rotating sleeve and extends into the rotating groove.

[0024] Beneficial effects of the present invention:

[0025] 1. By setting up a swing component, when welding, the fixed sleeve is controlled to swing by rotating the third shaft. The fixed sleeve drives the needle tip of the tungsten needle to swing at the opening of the gun nozzle, thereby achieving the same effect as shaking the gun and ensuring the welding quality. At the same time, during this process, the welding master only needs to pay attention to the stability of the gun movement, which reduces the requirements for skills and proficiency, making the welding process simpler and more portable, and can achieve fast and accurate welding.

[0026] 2. By setting a control handle, the third rotating shaft can be controlled by the control handle, making it more convenient to control. By controlling the sliding rod to slide in the control groove and the sliding groove, the distance from the sliding rod to the third rotating shaft can be adjusted, thereby adjusting the deflection angle of the control handle and controlling the shaking amplitude of the tungsten needle. This makes it more convenient to use and the welding process more stable.

[0027] 3. A triangular bayonet is provided at the end of the control slot away from the third rotating shaft. By moving the sliding rod to this position, the control handle can be locked and the tungsten needle is also fixed. In this way, when a skilled welding master uses it, he can choose to turn off the swing function of the tungsten needle and realize the swing welding by hand, which provides more operation options for the equipment and a wider range of applications.

[0028] 4. By setting the guide assembly, the guide needle is rotated to the direction of the tungsten needle during welding, and then the inclined guide needle is inserted into the gap between the welding workpieces, and then the gun is moved along these gaps. This makes the gun movement process more stable and the welding more accurate.

[0029] 5. By setting up a sliding sleeve, when the guide needle is not needed, rotate the guide needle to store it in the strip frame, and then push the sliding sleeve to lock the guide needle in the strip frame. This not only prevents the guide needle from affecting subsequent welding work, but also prevents the exposed guide needle from injuring the welding master.

[0030] 6. By setting the card slot and the card table, the inclination angle of the guide needle can be adjusted automatically. After the adjustment is completed, push the sliding sleeve to make the card table snap into the card slot, so that the device has a wider range of applications and can meet the needs of different people and different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective view of the present invention;

[0032] Figure 2 This is a schematic diagram of the interior of the handle of the present invention;

[0033] Figure 3 This is a schematic diagram of the outer swing assembly of the handle of the present invention;

[0034] Figure 4 This is a disassembled diagram of the outer swing assembly of the handle of the present invention;

[0035] Figure 5 This is a schematic diagram of the rocking assembly inside the handle of the present invention;

[0036] Figure 6 This is a schematic diagram of the swing assembly inside the handle of the present invention after deflection;

[0037] Figure 7 For the present invention Figure 5 Enlarged view of the middle handle;

[0038] Figure 8 This is a disassembled diagram of the rocking assembly inside the handle of the present invention;

[0039] Figure 9 It is a front view of the present invention;

[0040] Figure 10 It is a cross-sectional view of the present invention;

[0041] Figure 11 For the present invention Figure 10 Enlarged view of the shot head;

[0042] Figure 12 For the present invention Figure 10 Enlarged view of the shot mouth part;

[0043] Figure 13 This is a schematic diagram of the guide assembly of the present invention;

[0044] Figure 14 This is a schematic diagram of disassembly of the guide assembly of the present invention;

[0045] Figure 15 This is a disassembled diagram of the guide assembly of the present invention;

[0046] Figure 16 This is a schematic diagram of the guide assembly of the present invention in the stored state.

[0047] In the picture:

[0048] 1. Handle; 2. Gun head; 3. Gun muzzle; 4. Gun tail; 5. Fixed sleeve; 6. Needle clamp; 7. Tungsten needle; 8. Rocking assembly; 81. First rotating shaft; 82. First rocker; 83. Second rocker; 84. Second rotating shaft; 85. Follower rod; 86. Third rotating shaft; 87. Turntable; 88. Transmission rod; 89. Connecting rod; 810. Control handle; 811. Control slot; 812. Sliding slot; 813. Sliding rod; 9. Guide assembly; 91. Rotating sleeve; 92. Rotating frame; 93. Bar frame; 94. Guide needle; 95. Fixed shaft; 96. Sliding sleeve; 97. Offset slot; 98. Card slot; 99. Card table; 910. Rotating slot; 911. Locking bolt. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0050] Example 1, with reference to Figures 1-11 , which is a first embodiment of the present invention, provides a precise and fast welding device for installing electromechanical equipment, including a handle 1 and a gun head 2, a gun nozzle 3 and a gun tail 4 respectively arranged at both ends of the gun head 2, a fixed sleeve 5 arranged inside the gun nozzle 3, a needle clamp 6 arranged inside the fixed sleeve 5, and a tungsten needle 7 arranged inside the needle clamp 6, and also includes a swing assembly 8 arranged inside the handle 1 and the gun head 2, the swing assembly 8 specifically including a first rotating shaft 81 arranged between the gun head 2 and the fixed sleeve 5, a first rocker 82 arranged at one end of the fixed sleeve 5 close to the gun tail 4, a second rocker 83 arranged inside the handle 1, a second rotating shaft 84 arranged between the second rocker 83 and the handle 1, a driven rod 85 arranged at the bottom of the second rotating shaft 84, a third rotating shaft 86 arranged on the inner wall of the handle 1, an offset groove 97 arranged at one end of the third rotating shaft 86 away from the inner wall of the handle 1, a transmission rod 88 arranged on the outside of the turntable 87, and a connecting rod 89 arranged between the transmission rod 88 and the driven rod 85.

[0051] Specifically, the handle 1 is assembled by left and right halves, and one side of the handle 1 and the gun head 2 are welded together, the gun mouth 3 and the gun tail 4 are both threadedly connected to the gun head 2, the needle clamp 6 is slidably inserted in the fixed sleeve 5, the tungsten needle 7 is slidably inserted in the needle clamp 6, and the tungsten needle 7 extends from the end of the gun mouth 3 away from the gun head 2; the first rotating shaft 81 passes through the fixed sleeve 5 from the outside of the gun head 2, so that the fixed sleeve 5 rotates around the first rotating shaft 81, the first rocker 82 is fixedly connected to the fixed sleeve 5, and the second rocker 83 is close to the end of the first rocker 82. A "U"-shaped opening is provided, and the "U"-shaped opening is set on the outside of the first rocker 82, and the extension line of the second rocker 83 passes through the central axis of the first rocker 82 and the needle clamp 6, and the second rotating shaft 84 passes through the second rocker 83 and is threadedly connected to the handle 1, so that the second rocker 83 rotates around The second rocking arm 83 and the third rocking arm 86 are connected to the handle 1 by means of bolts. The transmission ratio can be adjusted by replacing the turntable 87 with a different diameter. The transmission rod 88 is fixedly connected to the turntable 87. The third shaft 86 extends out of the handle 1. The two ends of the connecting rod 89 are respectively slidably sleeved on the outside of the driven rod 85 and the transmission rod 88. A damping pad is provided between the connecting rod 89 and the driven rod 85. A buffer pad is provided between the connecting rod 89 and the transmission rod 88. The connecting rod 89 is divided into two sections, left and right, and the two sections are connected in rotation. The second rocking arm 83 and the turntable 87 are both arranged close to the inner wall contour of the handle 1, leaving more space for other pipelines and avoiding the influence of other pipelines on the transmission of the swing assembly 8.

[0052] By setting up the swing component 8, during welding, the fixing sleeve 5 is controlled to start swinging by rotating the third rotating shaft 86, and the fixing sleeve 5 drives the needle tip of the tungsten needle 7 to swing at the opening of the gun nozzle 3, thereby achieving the same effect as shaking the gun, ensuring the welding quality. At the same time, during this process, the welding master only needs to pay attention to the stability of the gun movement, and the requirements for skills and proficiency are reduced, making the welding process simpler and more portable, and achieving fast and accurate welding.

[0053] The rocking assembly 8 also includes a control handle 810 arranged on the third rotating shaft 86 and extending from one end of the handle 1, a control groove 811 opened on the surface of the handle 1, a sliding groove 812 opened on the side of the control handle 810, and a sliding rod 813 arranged between the control groove 811 and the sliding groove 812.

[0054] Specifically, the control handle 810 is sleeved on the outside of the third rotating shaft 86, and the control handle 810 rotates around the third rotating shaft 86. A thumb pressing area is provided at the end of the control handle 810 away from the third rotating shaft 86. When in use, the welding master presses his thumb here to adjust the movement of the control handle 810. The sliding groove 812 covers the opening of the control groove 811, and the width of the control groove 811 is larger than the sliding groove 812. The sliding rod 813 is threadedly connected to the sliding groove 812 and slidably connected to the control groove 811. The sliding rod 813 extends out of the sliding groove 812 at one end away from the control groove 811, and the extended part is provided with friction patterns for convenient rotation. The sliding groove 812 is engraved with digital scales around it to display the maximum offset angle of the corresponding position.

[0055] By setting up a control handle 810, the control handle 810 can be used to control the rotation of the third rotating shaft 86, making its control more convenient, and by controlling the sliding rod 813 to slide in the control groove 811 and the sliding groove 812, the distance from the sliding rod 813 to the third rotating shaft 86 is adjusted, thereby adjusting the deflection angle of the control handle 810, and also controlling the shaking amplitude of the tungsten needle 7, which is more convenient to use and the welding process is more stable.

[0056] Specifically, a triangular bayonet is provided at one end of the control slot 811 away from the third rotating shaft 86, so that moving the sliding rod 813 here can lock the control handle 810, and the tungsten needle 7 is also fixed. In this way, a skilled welding master can choose to turn off the swinging function of the tungsten needle 7 when using it, and realize the shaking gun welding by hand, so that the equipment has more operation options and a wider range of applications.

[0057] Example 2, reference Figure 1 、 Figure 10-16 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a guide assembly 9 is provided on the outside of the gun nozzle 3, and the guide assembly 9 specifically includes a rotating sleeve 91 provided on the outside of the gun nozzle 3, a rotating frame 92 provided on the outside of the rotating sleeve 91, a strip frame 93 provided on the inside of the rotating frame 92, a guide pin 94 provided on the inside of the strip frame 93, and a fixed shaft 95 provided between the strip frame 93 and the guide pin 94; the guide assembly 9 also includes a rotating groove 910 opened on the outside of the gun nozzle 3, which is interspersed with a locking bolt 911 provided on the outside of the rotating sleeve 91.

[0058] Specifically, the rotating sleeve 91 is sleeved on the outside of the gun nozzle 3, and the rotating sleeve 91 can rotate on the outside of the gun nozzle 3, the rotating frame 92 is welded to the outside of the rotating sleeve 91, the strip frame 93 is rotatably connected to the rotating frame 92, and a damping shaft is set at the connection between the two, the guide pin 94 rotates around the fixed shaft 95, and a damping washer is set between the two, the needle tip of the guide pin 94 is located at the bottom and can be inserted into the gap between the welding workpieces; the guide pin 94 adopts an inclined design when used, and the angle between the guide pin 94 and the tungsten needle 7 is an acute angle, so that the guide pin 94 can slide more smoothly in the gap between the welding workpieces to avoid obstruction; the rotating groove 910 is annular, and the locking bolt 911 passes through the rotating sleeve 91 and extends into the rotating groove 910.

[0059] By setting the guide assembly 9, the guide needle 94 is rotated to the gun movement direction of the tungsten needle 7 during welding, and then the inclined guide needle 94 is inserted into the gap between the welding workpieces, and then the gun is moved along these gaps, so that the gun movement process is more stable and the welding is more precise.

[0060] The guide assembly 9 further includes a sliding sleeve 96 arranged on the outside of the strip frame 93 and an offset groove 97 arranged on the outside of the guide pin 94 .

[0061] Specifically, the sliding sleeve 96 is slidably connected to the outside of the strip frame 93, the main body contour of the sliding sleeve 96 is L-shaped, the length of the offset groove 97 is greater than the diameter of the fixed shaft 95, so that the fixed shaft 95 can slide in the offset groove 97, the upper and lower thicknesses of the strip frame 93 are not less than the thickness of the guide pin 94, and the length of the strip frame 93 is greater than the guide pin 94, so that the guide pin 94 can be completely received inside the strip frame 93.

[0062] By setting the sliding sleeve 96, when the guide pin 94 is not needed, the guide pin 94 is rotated to be stored in the strip frame 93, and then the sliding sleeve 96 is pushed to lock the guide pin 94 in the strip frame 93. This not only prevents the guide pin 94 from affecting subsequent welding work, but also prevents the exposed guide pin 94 from injuring the welding master.

[0063] The guide assembly 9 further includes a slot 98 formed on the outside of the guide pin 94 and a platform 99 disposed at the bottom of the sliding sleeve 96 .

[0064] Specifically, the card platform 99 is arranged at the bottom edge of the sliding sleeve 96 and is integrally formed with the sliding sleeve 96. The card slot 98 adopts a "step-shaped" design, and the card platform 99 protrudes downward and is engaged in the card slot 98.

[0065] By setting the card slot 98 and the card platform 99, the inclination angle of the guide pin 94 can be adjusted automatically. After the adjustment is completed, the sliding sleeve 96 can be pushed to make the card platform 99 snap into the card slot 98, so that the device has a wider range of applications and can meet the needs of different people and different scenarios.

[0066] Based on Examples 1 and 2, the working principle of the precise and fast welding device for electromechanical equipment installation of the present invention is as follows:

[0067] Before welding, first rotate the locking bolt 911 to loosen the rotating sleeve 91, then rotate the rotating sleeve 91 to move the strip frame 93 to the direction of the gun movement of the tungsten needle 7, and then rotate the locking bolt 911 to fix the rotating sleeve 91 to the outside of the gun nozzle 3; push the sliding sleeve 96 toward the rotating frame 92, and then push the guide pin 94 along the strip frame 93 away from the rotating frame 92, and then rotate the guide pin 94 more than ninety degrees to form an acute angle between it and the tungsten needle 7. After adjusting to the appropriate angle, push the sliding sleeve 96 toward the guide pin 94, so that the card table 99 is stuck in the card slot 98, and the guide pin 94 is locked, thus completing the adjustment of the guide assembly 9.

[0068] Adjust the position of the sliding rod 813 according to the required welding width. When the required welding width is narrow, first rotate the sliding rod 813 to remove it from the sliding groove 812, then move it toward the third rotating shaft 86, and then rotate the sliding rod 813 to insert it into the sliding groove 812, and insert it into the control groove 811. In this way, the swing range of the control handle 810 becomes smaller, the swing range of the tungsten needle 7 also becomes smaller, and the welding width becomes narrower. If the required welding width is wide, the operation is reversed. If the welding master has skilled welding skills, he can choose to move the sliding rod 813 to the triangular bayonet at one end of the control groove 811. In this way, the sliding rod 813 cannot shake in the control groove 811, the control handle 810 cannot move, the tungsten needle 7 is synchronously locked, and the welding master can rely entirely on his own skills for welding.

[0069] During welding, the guide needle 94 is inserted into the gap between the welding workpieces, and then the angle of the equipment is adjusted so that the tungsten needle 7 touches between the welding tools. The tungsten needle 7 releases the arc to melt the workpieces, and a molten pool is formed on the gap between the welding workpieces. When the tungsten needle 7 touches the workpiece, the gun starts to move slowly, and the thumb is pressed on the surface of the control handle 810, and the thumb is used to control the control handle 810 to swing up and down. During this process, the sliding rod 813 swings in the control groove 811 and stops after touching the inner wall of the control groove 811. The third rotating shaft 86 also rotates with the control handle 810 and drives the turntable 87 to rotate. The turntable 87 drives the transmission rod 88 to deflect to one side. The transmission rod 88 pulls or pushes the driven rod 85 through the connecting rod 89. During this process, one end of the connecting rod 89 rotates based on the central axis of the driven rod 85, and the other end of the connecting rod 89 also deflects based on the transmission rod 88, and the two ends of the connecting rod 89 also rotate relative to each other. The process is as follows Figure 5-Figure 6As shown, the second rocker 83 swings based on the second rotating shaft 84. When swinging, the first rocker 82 controls the fixed sleeve 5 to swing based on the first rotating shaft 81. When the fixed sleeve 5 swings, the needle clamp 6 controls the tungsten needle 7 to swing. The swinging tungsten needle 7 forms a wide welding pool between the welding tools. The gun is continuously moved in this way until the welding work is completed.

[0070] After completion, use the sliding rod 813 to lock the control handle 810, then rotate the guide pin 94 so that it is parallel to the strip frame 93, push the guide pin 94 toward the rotating frame 92, and the fixed shaft 95 slides in the offset groove 97. The guide pin 94 is also completely retracted into the strip frame 93. Finally, push the sliding sleeve 96 away from the rotating frame 92, move it to the outside of the guide pin 94, and lock it in the strip frame 93.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A precise and fast welding device for installing electromechanical equipment, comprising a handle (1) and a gun head (2), a gun mouth (3) and a gun tail (4) respectively arranged at both ends of the gun head (2), a fixing sleeve (5) arranged inside the gun mouth (3), a needle clamp (6) arranged inside the fixing sleeve (5), and a tungsten needle (7) arranged inside the needle clamp (6), characterized in that: The invention also includes a rocking assembly (8) arranged inside the handle (1) and the gun head (2), wherein the rocking assembly (8) specifically includes a first rotating shaft (81) arranged between the gun head (2) and the fixed sleeve (5), a first rocking arm (82) arranged at one end of the fixed sleeve (5) close to the gun tail (4), a second rocking arm (83) arranged inside the handle (1), a second rotating shaft (84) arranged between the second rocking arm (83) and the handle (1), a driven rod (85) arranged at the bottom of the second rotating shaft (84), a third rotating shaft (86) arranged on the inner wall of the handle (1), an offset groove (97) arranged at one end of the third rotating shaft (86) away from the inner wall of the handle (1), a transmission rod (88) arranged on the outer side of the rotating disk (87), and a connecting rod (89) arranged between the transmission rod (88) and the driven rod (85); The second rocker (83) is provided with a "U"-shaped opening at one end close to the first rocker (82), and the "U"-shaped opening is sleeved on the outside of the first rocker (82); the third rotating shaft (86) extends out of the handle (1); the connecting rod (89) is divided into two left and right sections, and the two sections are rotatably connected; The swing assembly (8) further includes a control handle (810) disposed on the third rotating shaft (86) and extending from one end of the handle (1), a control groove (811) formed on the surface of the handle (1), a sliding groove (812) formed on the side of the control handle (810), and a sliding rod (813) disposed between the control groove (811) and the sliding groove (812); The sliding groove (812) covers the opening of the control groove (811), and the width of the control groove (811) is larger than that of the sliding groove (812). The sliding rod (813) is threadedly connected to the sliding groove (812) and slidably connected to the control groove (811). A guide assembly (9) is provided on the outside of the gun nozzle (3), and the guide assembly (9) specifically includes a rotating sleeve (91) provided on the outside of the gun nozzle (3), a rotating frame (92) provided on the outside of the rotating sleeve (91), a strip frame (93) provided on the inside of the rotating frame (92), a guide pin (94) provided on the inside of the strip frame (93), and a fixed shaft (95) provided between the strip frame (93) and the guide pin (94); The guide needle (94) rotates around the fixed shaft (95), and a damping washer is provided between the two, and the needle tip of the guide needle (94) is located at the bottom end.

2. The precise and rapid welding device for electromechanical equipment installation according to claim 1, characterized in that: A triangular bayonet is provided at one end of the control slot (811) away from the third rotating shaft (86).

3. The precise and rapid welding device for electromechanical equipment installation according to claim 1 is characterized in that: The second rocker (83) and the turntable (87) are both arranged close to the inner wall contour of the handle (1).

4. The precise and rapid welding device for electromechanical equipment installation according to claim 1 is characterized in that: The guide needle (94) is designed to be tilted when in use, and the angle between the guide needle (94) and the tungsten needle (7) is an acute angle.

5. The precise and rapid welding device for electromechanical equipment installation according to claim 1 is characterized in that: The guide assembly (9) further includes a sliding sleeve (96) arranged on the outside of the strip frame (93) and an offset groove (97) arranged on the outside of the guide pin (94); The length of the offset groove (97) is greater than the diameter of the fixed shaft (95), so that the fixed shaft (95) slides in the offset groove (97), the upper and lower thicknesses of the strip frame (93) are not less than the thickness of the guide pin (94), and the length of the strip frame (93) is greater than the guide pin (94).

6. The precise and rapid welding device for electromechanical equipment installation according to claim 5, characterized in that: The guide assembly (9) further includes a card slot (98) provided on the outside of the guide pin (94) and a card table (99) provided on the bottom of the sliding sleeve (96); The card slot (98) adopts a "step-shaped" design, and the card platform (99) protrudes downward and is engaged in the card slot (98).

7. The precise and rapid welding device for electromechanical equipment installation according to claim 1, characterized in that: The guide assembly (9) further includes a rotation groove (910) provided on the outside of the gun nozzle (3), and a locking bolt (911) provided on the outside of the rotation sleeve (91) is inserted therethrough; The rotating groove (910) is annular, and the locking bolt (911) passes through the rotating sleeve (91) and extends into the rotating groove (910).

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