A welding device for general machining

Abstract

The application discloses a welding device for general mechanical machining and relates to the technical field of machining, which comprises an operation table, a U-shaped support fixedly connected to the top surface of the operation table, a welding device arranged on the inner side of the U-shaped support, and a power part; the power part comprises a fixed box, a motor and a blade; a gas guide pipe is fixedly connected through the back surface of the fixed box; the bottom surface of the motor is fixedly connected to the top surface of the fixed box; the bottom end outer surface of the motor output shaft is rotatably penetrated through the top surface of the fixed box and extends to the inner side of the fixed box through a first bearing; and the outer surface of the blade is fixedly connected to the outer surface of the motor output shaft. The motor, the blade, the fixed box, the telescopic pipe and the connecting rod are arranged; the motor is started; the motor drives the blade to rotate; negative pressure is generated in the fixed box; gas enters the fixed box from below the fixed box and is discharged from the rear gas guide pipe of the fixed box; harmful gas generated in the welding process is prevented from diffusing in the working area; and the inhalation of workers is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical processing, in particular to a universal welding device for mechanical processing. BACKGROUND

[0002] Mechanical processing refers to the process of changing the shape or performance of a workpiece by a mechanical device. According to the difference in processing method, it can be divided into cutting and pressure processing. Welding is often required during mechanical processing. Welding, also known as fusion or fusion, is a manufacturing process that joins metal or other thermoplastic materials such as plastic through heating, high temperature or high pressure.

[0003] A universal welding device for mechanical processing is disclosed in Chinese patent CN114083207A, which comprises a base, two vertical plates are arranged opposite to the base, a welding table is rotatably arranged between the two vertical plates, a clamping mechanism is arranged on the welding table, two vertical columns are arranged on the base behind the welding table, a horizontal plate is connected to the upper ends of the two vertical columns, a guide block is arranged on the horizontal plate, a moving seat is slidably arranged on the guide block, a motor one is arranged on the moving seat, a drive gear is arranged at the bottom end of the output shaft of the motor one, a rack is arranged on one side of the horizontal plate and engages with the drive gear, a mounting column is arranged on the moving seat, and a welding assembly is arranged on the mounting column. The advantages of the present application compared with the prior art are that the welding efficiency is high and the different positions of the mechanical equipment can be welded.

[0004] However, it still has the following disadvantages: the device controls the extension and retraction of the air cylinder one to control the up-down movement of the welding gun, and controls the front-back movement of the welding gun through the air cylinder two, but harmful gases are generated during the welding process, which is harmful to the health of the workers. Therefore, we propose a universal welding device for mechanical processing to solve this problem. SUMMARY

[0005] The present application provides a universal welding device for mechanical processing to solve the problems raised in the background art.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is:

[0007] A universal welding device for mechanical processing, comprising an operation table, the top surface of the operation table is fixedly connected with a U-shaped support, a welding device is arranged on the inner side of the U-shaped support, the welding device comprises a power part;

[0008] The power part comprises a fixed box, a motor and a blade, the back surface of the fixed box is fixedly connected with a gas guide pipe, the bottom surface of the motor is fixedly connected with the top surface of the fixed box, the bottom end of the output shaft of the motor is rotatably connected with the top surface of the fixed box through a first bearing and extends to the inner side of the fixed box, and the outer surface of the blade is fixedly connected with the outer surface of the output shaft of the motor.

[0009] The right side of the fixed box is provided with a welding part;

[0010] The welding part comprises a mounting box, a screw rod, a mounting plate and a soldering pen, the outer surface of the top end of the screw rod is slidably penetrated through the bottom surface of the mounting box and extends to the inner side of the mounting box, the front and rear end surfaces of the screw rod are fixedly penetrated to be provided with a fixed shaft, the mounting plate is rotatably sleeved on the outer surface of the fixed shaft through a second bearing, and the outer surface of the bottom end of the soldering pen is fixedly penetrated through the top surface of the mounting plate and extends to below the mounting plate.

[0011] Further improvement of the technical scheme of the present application is that the bottom surface of the fixed box is fixedly connected with an extension tube, the right end surface of the extension tube is fixedly connected with a connecting rod, and the right end surface of the connecting rod is fixedly connected with the left end surface of the screw rod. By setting the motor, the blade, the fixed box, the extension tube and the connecting rod, the motor is started, the motor drives the blade to rotate, a negative pressure is generated in the inside of the fixed box, gas enters the inside of the fixed box from below the fixed box, and the harmful gas generated in the welding process is discharged from the air guide pipe at the back of the fixed box, so that the harmful gas is prevented from diffusing in the working area and the inhalation of the workers is reduced. By setting the connecting rod and the extension tube, the screw rod drives the connecting rod to move, the connecting rod drives the extension tube to move up and down, the suction range of the device is expanded, the harmful gas generated in the welding is sucked into the inside of the fixed box from the bottom of the extension tube, and the workers inhale the harmful gas.

[0012] Further improvement of the technical scheme of the present application is that the outer surface of the fixed shaft is fixedly sleeved with a chuck, the inner wall of the mounting plate is fixedly connected with a clamping block, the front surface of the chuck is provided with a clamping groove, and the outer surface of the clamping block extends to the inside of the clamping groove and is clamped with the inner wall of the clamping groove. By setting the fixed shaft, the clamping block and the chuck, the mounting plate is rotated, the mounting plate drives the clamping block to move, the outer surface of the clamping block is clamped with the inner wall of the different clamping grooves of the front surface of the chuck, the mounting plate is rotated, and the welding angle of the soldering pen is adjusted.

[0013] Further improvement of the technical scheme of the present application is that the outer surface of the screw rod is threadedly sleeved with a second bevel gear, the bottom surface of the second bevel gear is rotatably connected with the inner wall of the bottom end of the mounting box through a bearing seat, the left side of the mounting box is provided with a rotating shaft, the outer surface of the right end of the rotating shaft is rotatably penetrated through the left end surface of the mounting box and extends to the inside of the mounting box through a third bearing, the outer surface of the right end of the rotating shaft is fixedly sleeved with a first bevel gear, and the outer surface of the first bevel gear is meshingly connected with the outer surface of the second bevel gear. By setting the mounting box, the screw rod, the first bevel gear, the second bevel gear and the rotating shaft, the rotating shaft is rotated, the rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the screw rod drives the soldering pen to move up and down, and the height of the soldering pen is adjusted.

[0014] Further improvement of the technical scheme of the present application is that the top surface of the screw rod is provided with a first limiting groove, the inner wall of the top end of the mounting box is fixedly connected with a limiting rod, the cross section of the limiting rod is square, the bottom end outer surface of the limiting rod extends into the first limiting groove and is in sliding connection with the inner wall of the first limiting groove, by setting the limiting rod, the screw rod is limited by the limiting rod, the screw rod is prevented from rotating with the second bevel gear, and the second bevel gear drives the screw rod to move up and down.

[0015] Further improvement of the technical scheme of the present application is that the bottom end outer surface of the motor output shaft is fixedly sleeved with a fourth bevel gear, the inside of the fixed box is provided with a mounting rod, the outer surface of the mounting rod is fixedly sleeved with two third bevel gears, the cross section of the mounting rod is hexagonal, the right end surface of the fixed box is provided with a through hole, the outer surface of the right end of the rotating shaft penetrates through the through hole, the left end surface of the rotating shaft is provided with a second limiting groove, and the outer surface of the right end of the mounting rod extends into the second limiting groove and is in sliding connection with the inner wall of the second limiting groove, by setting the mounting rod and the second limiting groove, the mounting rod can move horizontally along the axis of the rotating shaft while rotating with the rotating shaft.

[0016] Further improvement of the technical scheme of the present application is that the outer surface of the third bevel gear is provided with a groove, the inner wall of the groove is fixedly connected with a magnetic ring, the left and right end surfaces of the fixed box are both hingedly connected with a rotating plate, the top surface of the rotating plate is fixedly connected with a second spring, the other end of the second spring is fixedly connected with the outer surface of the fixed box, the bottom surface of the rotating plate is fixedly connected with a magnet, and the bottom surface of the magnet repels the outer side end surfaces of the two magnetic rings, by setting the first spring, the mounting rod, the third bevel gear, the fourth bevel gear, the magnetic ring, the rotating plate, the magnet and the second spring, the rotating plate is pressed downward, the rotating plate drives the magnet to rotate, the bottom surface of the magnet faces the outer surface of the fixed box, the repulsive force between the magnet and the magnetic ring is utilized, the magnet pushes the magnetic ring, the magnetic ring pushes the third bevel gear and the mounting rod to displace, the outer surface of the third bevel gear is in meshing connection with the outer surface of the fourth bevel gear, and the motor drives the rotating shaft to rotate.

[0017] Further improvement of the technical scheme of the present application is that the right end surface of the mounting rod is fixedly connected with a first spring, and the other end of the first spring is fixedly connected with the inner wall of the second limiting groove, by setting the first spring, the mounting rod is positioned by the elastic force of the first spring, the third bevel gear is not in contact with the fourth bevel gear when the rotating plate is reset, and the screw rod remains stationary.

[0018] Due to the adoption of the above technical scheme, the present application has the following technical progress compared with the prior art:

[0019] 1. The welding device for general mechanical machining provided by the present application sets up motor, blade, fixed box, telescopic pipe and connecting rod, starts the motor, the motor drives the blade to rotate, makes the fixed box inside produce negative pressure, makes the gas enter the fixed box inside from below the fixed box, and discharges from the rear gas guide pipe of the fixed box, prevents the harmful gas produced in the welding process from diffusing in the working area, and reduces the inhalation of the workers.

[0020] 2. The welding device for general mechanical machining provided by the present application sets up installation box, screw rod, first bevel gear, second bevel gear, mounting plate, limiting rod and rotating shaft, rotates the rotating shaft, the rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the limiting rod is used for limiting the screw rod, prevents the screw rod from rotating with the second bevel gear, the second bevel gear drives the screw rod to move up and down, the screw rod drives the welding pen to move up and down, and the height of the welding pen is adjusted.

[0021] 3. The welding device for general mechanical machining provided by the present application sets up first spring, mounting rod, third bevel gear, fourth bevel gear, magnetic ring, rotating plate, magnet and second spring, presses down the rotating plate, the rotating plate drives the magnet to rotate, the bottom surface of the magnet faces the outer surface of the fixed box, the repulsive force of the magnet and the magnetic ring is utilized, the magnet pushes the magnetic ring, the magnetic ring pushes the third bevel gear and the mounting rod to displace, the outer surface of the third bevel gear is connected with the outer surface of the fourth bevel gear, the motor transmits power to the mounting plate through the third bevel gear and the fourth bevel gear, the mounting rod drives the rotating shaft to rotate, the screw rod and the welding pen move, the rotating plate is released, the second spring resets the rotating plate and the magnet, another rotating plate is rotated, the screw rod and the welding pen move in the opposite direction, the elastic force of the first spring is utilized to position the mounting rod, when the rotating plate is reset, the outer surface of the third bevel gear does not contact the outer surface of the fourth bevel gear, and the screw rod remains stationary.

[0022] 4. The welding device for general mechanical machining provided by the present application sets up fixed shaft, clamping block and chuck, rotates the mounting plate, the mounting plate drives the clamping block to move, the outer surface of the clamping block is clamped in the inner wall of the front slot of the chuck, the mounting plate is rotated, the welding angle of the welding pen is adjusted, the outer surface of the clamping block is clamped in the inner wall of the front slot of the chuck, and the mounting plate remains stable. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a sectional view of the welding device of the present application;

[0024] Figure 2 It is a schematic view of the welding device of the present application;

[0025] Figure 3 It is a sectional view of the welding device of the present application;

[0026] Figure 4It is the stereoscopic structure sectional view of the mounting plate of the application;

[0027] Figure 5 It is Figure 3 The structure enlarged view at B in the middle;

[0028] Figure 6 It is Figure 3 The structure enlarged view at C in the middle;

[0029] Figure 7 It is Figure 3 The structure enlarged view at A in the middle.

[0030] In the figure: 1, operation table; 3, welding device; 31, welding part; 32, power part; 3101, mounting box; 3102, screw rod; 3103, first bevel gear; 3104, second bevel gear; 3105, mounting plate; 3106, welding pen; 3107, chuck; 3108, limiting rod; 3110, fixed shaft; 3111, clamping block; 3113, first spring; 3114, mounting rod; 3115, rotating shaft; 3116, third bevel gear; 3117, fourth bevel gear; 3118, magnetic ring; 3119, rotating plate; 3120, magnet; 3121, second spring; 3201, motor; 3203, blade; 3204, fixed box; 3205, telescopic pipe; 3206, connecting rod; 4, U-shaped support. DETAILED DESCRIPTION

[0031] The application will be further described in detail in combination with examples: Example 1

[0032] As Figures 1-2 shown, the application provides a welding device for general mechanical machining, which comprises an operation table 1, the top surface of the operation table 1 is fixedly connected with a U-shaped support 4, the inner side of the U-shaped support 4 is provided with a welding device 3, the welding device 3 comprises a power part 32;

[0033] The power unit 32 includes a fixed box 3204, a motor 3201, and blades 3203. A guide pipe is fixedly connected to the back of the fixed box 3204. The bottom surface of the motor 3201 is fixedly connected to the top surface of the fixed box 3204. The outer surface of the bottom end of the motor 3201's output shaft rotates through the top surface of the fixed box 3204 via a first bearing and extends to the inside of the fixed box 3204. The outer surface of the blades 3203 is fixedly connected to the outer surface of the motor 3201's output shaft. A telescopic tube 3205 is fixedly connected to the bottom surface of the fixed box 3204. 5. A connecting rod 3206 is fixedly connected to the right end face. By setting up a motor 3201, blade 3203, fixed box 3204, telescopic tube 3205 and connecting rod 3206, the motor 3201 is started. The motor 3201 drives the blade 3203 to rotate, which creates a negative pressure inside the fixed box 3204. This allows gas to enter the fixed box 3204 from below and be discharged from the gas guide pipe at the rear of the fixed box 3204. This prevents harmful gases generated during the welding process from spreading in the work area and reduces the inhalation of gas by workers. Example 2

[0034] like Figures 1-4 As shown, based on Embodiment 1, a welding part 31 is provided on the right side of the fixing box 3204;

[0035] The welding part 31 includes a mounting box 3101, a screw 3102, a mounting plate 3105, and a welding pen 3106. The right end face of the connecting rod 3206 is fixedly connected to the left end face of the screw 3102. The outer surface of the top end of the screw 3102 slides through the bottom surface of the mounting box 3101 and extends to the inside of the mounting box 3101. The front and rear end faces of the screw 3102 are fixedly provided with a fixed shaft 3110. The mounting plate 3105 is rotatably sleeved on the outer surface of the fixed shaft 3110 through a second bearing.

[0036] The bottom outer surface of the welding pen 3106 is fixedly inserted through the top surface of the mounting plate 3105 and extends to the bottom of the mounting plate 3105. The outer surface of the fixed shaft 3110 is fixedly fitted with a chuck 3107. The inner wall of the mounting plate 3105 is fixedly connected with a locking block 3111. The front of the chuck 3107 has a locking groove. The outer surface of the locking block 3111 extends into the groove and engages with the inner wall of the groove. By setting the fixed shaft 3110, the locking block 3111 and the chuck 3107, the mounting plate 3105 is rotated, and the mounting plate 3105 drives the locking block 3111 to move, so that the outer surface of the locking block 3111 engages with the inner wall of the different locking grooves on the front of the chuck 3107, causing the mounting plate 3105 to rotate and adjust the welding angle of the welding pen 3106. The engagement of the outer surface of the locking block 3111 with the inner wall of the locking groove on the front of the chuck 3107 keeps the mounting plate 3105 stable. Example 3

[0037] like Figures 1-7As shown, on the basis of embodiment two, the top surface of the screw 3102 is provided with a first limiting groove, the inner wall of the top end of the mounting box 3101 is fixedly connected with a limiting rod 3108, the cross section of the limiting rod 3108 is square, the bottom end of the outer surface of the limiting rod 3108 extends to the inside of the first limiting groove and is slidably connected with the inner wall of the first limiting groove, the outer surface of the screw 3102 is threadedly provided with a second bevel gear 3104, the bottom surface of the second bevel gear 3104 is rotatably connected with the bottom end inner wall of the mounting box 3101 through a bearing seat, the left side of the mounting box 3101 is provided with a rotating shaft 3115, the outer surface of the right end of the rotating shaft 3115 rotatably penetrates through the left end surface of the mounting box 3101 and extends into the inside of the mounting box 3101 through a third bearing, the outer surface of the right end of the rotating shaft 3115 is fixedly provided with a first bevel gear 3103, the outer surface of the first bevel gear 3103 is meshingly connected with the outer surface of the second bevel gear 3104, by arranging the mounting box 3101, the screw 3102, the first bevel gear 3103, the second bevel gear 3104, the mounting plate 3105, the limiting rod 3108 and the rotating shaft 3115, by rotating the rotating shaft 3115, the rotating shaft 3115 drives the first bevel gear 3103 to rotate, the first bevel gear 3103 drives the second bevel gear 3104 to rotate, the limiting rod 3108 is used for limiting the screw 3102, preventing the screw 3102 from rotating with the second bevel gear 3104, so that the second bevel gear 3104 drives the screw 3102 to move up and down, the screw 3102 drives the soldering pen 3106 to move up and down, and the height of the soldering pen is convenient to adjust;

[0038] The outer surface of the bottom end of the output shaft of the motor 3201 is fixedly provided with a fourth bevel gear 3117, the inside of the fixed box 3204 is provided with a mounting rod 3114, the outer surface of the mounting rod 3114 is fixedly provided with two third bevel gears 3116, the cross section of the mounting rod 3114 is hexagonal, the right end surface of the fixed box 3204 is provided with a through hole, the outer surface of the right end of the rotating shaft 3115 penetrates through the through hole, the left end surface of the rotating shaft 3115 is provided with a second limiting groove, the outer surface of the right end of the mounting rod 3114 extends to the inside of the second limiting groove and is slidably connected with the inner wall of the second limiting groove, the outer surface of the third bevel gear 3116 is provided with a groove, the inner wall of the groove is fixedly connected with a magnetic ring 3118, and the left and right end surfaces of the fixed box 3204 are both hingedly provided with a rotating plate 3119;

[0039] The top surface of the rotating plate 3119 is fixedly connected with a second spring 3121, the other end of the second spring 3121 is fixedly connected with the outer surface of the fixed box 3204, the bottom surface of the rotating plate 3119 is fixedly connected with a magnet 3120, the bottom surface of the magnet 3120 is repelled by the outer side end surface of the two magnetic rings 3118, the right end surface of the mounting rod 3114 is fixedly connected with a first spring 3113, the other end of the first spring 3113 is fixedly connected with the inner wall of the second limiting groove, by arranging the first spring 3113, the mounting rod 3114, the third bevel gear 3116, the fourth bevel gear 3117, the magnetic ring 3118, the rotating plate 3119, the magnet 3120 and the second spring 3121, the rotating plate 3119 is pressed downward, the rotating plate 3119 drives the magnet 3120 to rotate, the bottom surface of the magnet 3120 faces the outer surface of the fixed box 3204, by the repulsive force of the magnet 3120 and the magnetic ring 3118, the magnet 3120 pushes the magnetic ring 3118, the magnetic ring 3118 pushes the third bevel gear 3116 and the mounting rod 3114 to displace, the outer surface of the third bevel gear 3116 is meshedly connected with the outer surface of the fourth bevel gear 3117, the motor 3101 transmits power to the mounting plate 3114 through the third bevel gear 3116 and the fourth bevel gear 3117, the mounting rod 3114 drives the rotating shaft 3115 to rotate, the screw rod 3108 and the solder pen 3106 are moved, the rotating plate is loosened, the second spring 3121 pulls the rotating plate 3119 and the magnet 3120 to reset, another rotating plate 3119 is rotated, the screw rod 3108 and the solder pen 3106 are moved in the opposite direction, by the elastic force of the first spring 3113, the mounting rod is positioned, when the rotating plate is reset, the outer surface of the third bevel gear 3116 is not in contact with the outer surface of the fourth bevel gear 3117, and the screw rod 3108 remains stationary.

[0040] The working principle of the universal welding device for machining will be described below.

[0041] In use, the motor 3201 is started, the motor 3201 drives the blade 3203 to rotate, gas enters the inside of the fixed box 3204 from below the fixed box, one rotating plate 3119 is pressed downward, the rotating plate 3119 drives the magnet 3120 to rotate, the bottom surface of the magnet 3120 faces the outer surface of the fixed box 3204, the magnet 3120 pushes the magnetic ring 3118, the magnetic ring 3118 pushes the third bevel gear 3116 and the mounting rod 3114 to displace, the outer surface of the third bevel gear 3116 is meshedly connected with the outer surface of the fourth bevel gear 3117, the motor 3201 drives the mounting rod 3114 to rotate through the third bevel gear 3116 and the fourth bevel gear 3117, the mounting rod 3114 drives the rotating shaft 3115 to rotate, the screw rod 3102 and the solder pen 3106 are moved;

[0042] The application provides a welding device for general mechanical machining, which is characterized by the following steps: rotating the fixing shaft, the clamping block and the chuck, moving the clamping block by the installation plate, clamping the outer surface of the clamping block and the inner wall of the clamping groove on the front surface of the chuck, rotating the installation plate, adjusting the welding angle of the welding pen, and keeping the installation plate stable by clamping the outer surface of the clamping block and the inner wall of the clamping groove on the front surface of the chuck.

[0043] The above detailed description is generally made to the application, but some modifications or improvements can be made on the basis of the application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the application are within the protection scope of the application.

Claims

1. A general-purpose welding device for machining, comprising an operating table (1), characterized in that: The top surface of the operating table (1) is fixedly connected to a U-shaped bracket (4), and a welding device (3) is provided on the inner side of the U-shaped bracket (4). The welding device (3) includes a power unit (32). The power unit (32) includes a fixed box (3204), a motor (3201), and blades (3203). The back of the fixed box (3204) is fixedly connected to the air guide pipe. The bottom surface of the motor (3201) is fixedly connected to the top surface of the fixed box (3204). The outer surface of the bottom end of the output shaft of the motor (3201) rotates through the top surface of the fixed box (3204) through the first bearing and extends to the inside of the fixed box (3204). The outer surface of the blades (3203) is fixedly connected to the outer surface of the output shaft of the motor (3201). The fixing box (3204) has a welding part (31) on the right side; The welding part (31) includes a mounting box (3101), a screw (3102), a mounting plate (3105), and a welding pen (3106). The outer surface of the top end of the screw (3102) slides through the bottom surface of the mounting box (3101) and extends to the inside of the mounting box (3101). The front and rear end faces of the screw (3102) are fixedly connected to a fixed shaft (3110). The mounting plate (3105) is rotatably sleeved on the outer surface of the fixed shaft (3110) through a second bearing. The outer surface of the bottom end of the welding pen (3106) is fixedly connected through the top surface of the mounting plate (3105) and extends to the bottom of the mounting plate (3105). The screw (3102) has a second bevel gear (3104) threaded on its outer surface. The bottom surface of the second bevel gear (3104) is rotatably connected to the inner wall of the bottom end of the mounting box (3101) through a bearing seat. A rotating shaft (3115) is provided on the left side of the mounting box (3101). The outer surface of the right end of the rotating shaft (3115) rotates through the left end face of the mounting box (3101) through a third bearing and extends into the interior of the mounting box (3101). A first bevel gear (3103) is fixedly sleeved on the outer surface of the right end of the rotating shaft (3115). The outer surface of the first bevel gear (3103) meshes with the outer surface of the second bevel gear (3104). The motor (3201) output shaft bottom end outer surface is fixedly fitted with a fourth bevel gear (3117), the fixed box (3204) is provided with an installation rod (3114), the installation rod (3114) outer surface is fixedly fitted with two third bevel gears (3116), the installation rod (3114) has a hexagonal cross section, the right end face of the fixed box (3204) is provided with a through hole, the right end outer surface of the rotating shaft (3115) is through the through hole, the left end face of the rotating shaft (3115) is provided with a second limiting groove, the right end outer surface of the installation rod (3114) extends into the second limiting groove and slides in connection with the inner wall of the second limiting groove.

2. The welding device for general machining according to claim 1, characterized in that: The bottom surface of the fixed box (3204) is fixedly connected to a telescopic tube (3205), and the right end face of the telescopic tube (3205) is fixedly connected to a connecting rod (3206). The right end face of the connecting rod (3206) is fixedly connected to the left end face of the screw (3102).

3. The welding device for general machining according to claim 1, characterized in that: A chuck (3107) is fixedly sleeved on the outer surface of the fixed shaft (3110), and a locking block (3111) is fixedly connected to the inner wall of the mounting plate (3105). A slot is opened on the front of the chuck (3107), and the outer surface of the locking block (3111) extends into the slot and engages with the inner wall of the slot.

4. The welding device for general machining according to claim 1, characterized in that: The screw (3102) has a first limiting groove on its top surface. The mounting box (3101) has a limiting rod (3108) fixedly connected to the inner wall of its top. The limiting rod (3108) has a square cross-section. The outer surface of the bottom end of the limiting rod (3108) extends into the first limiting groove and slides in connection with the inner wall of the first limiting groove.

5. The welding device for general machining according to claim 1, characterized in that: The outer surface of the third bevel gear (3116) is provided with a groove, and a magnetic ring (3118) is fixedly connected to the inner wall of the groove. The left and right end faces of the fixed box (3204) are both hinged with rotating plates (3119). The top surface of the rotating plate (3119) is fixedly connected with a second spring (3121). The other end of the second spring (3121) is fixedly connected to the outer surface of the fixed box (3204). The bottom surface of the rotating plate (3119) is fixedly connected with a magnet (3120). The bottom surface of the magnet (3120) repels the outer end faces of the two magnetic rings (3118).

6. The welding device for general machining according to claim 1, characterized in that: The right end face of the mounting rod (3114) is fixedly connected to a first spring (3113), and the other end of the first spring (3113) is fixedly connected to the inner wall of the second limiting groove.

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