A narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism

Abstract

The present invention relates to a narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism, comprising a transmission mechanism and a welding mechanism connected to the transmission mechanism, wherein the transmission mechanism is composed of a wire feeding transmission mechanism and a welding transmission mechanism arranged in a space formed by a base plate and a cover plate; the wire feeding transmission mechanism comprises a base plate, a wire feeding gear ring group, a bearing and a wire feeding gear, and by arranging a fixed gear ring and a movable gear ring in the wire feeding gear ring, a U-shaped slot is closed during the welding process, and a rotating circular track is provided for the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism during the rotation process. The circular track provides a rigid fixing effect for the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism, thereby preventing the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism from colliding and locking with the slot during the rotation process, thereby improving the service life of the equipment and the welding efficiency, and reducing the occurrence of operating accidents.

Description

Technical Field

[0001] The invention relates to welding equipment, in particular to a narrow-spacing anti-lock obstacle welding machine. Background Art

[0002] The high-pressure heaters in the regenerative systems of modern large-scale thermal power generation units typically come in two structural types: U-tube and serpentine. Tubesheet-type U-tube high-pressure heaters typically require larger tubesheet diameters and thicknesses, but startup and shutdown of the unit can cause significant thermal stresses, leading to thermal cracking at the connection between the shell and tubesheet. Currently, supercritical units in the megawatt class are gradually transitioning from traditional U-tube high-pressure heaters to serpentine-tube high-pressure heaters. However, the structure of the serpentine tube high-pressure heater is very different from that of the U-tube high-pressure heater, and the manufacturing process is also very different. In the current serpentine tube high-pressure heater, the welding of the serpentine heat exchange tube and the manifold seat is limited in space, so a special U-tube welding machine is designed. During the welding process, most of the existing U-tube welding machines use a single motor or a dual motor to drive the wire feeding mechanism and the welding mechanism to rotate, thereby completing the welding process. During this process, the wire feeding gear ring assembly in the wire feeding mechanism and the welding rotating assembly in the welding mechanism rotate around the welding point. Due to the thermal expansion and contraction caused by the high temperature of the welding gun, the wire feeding gear ring assembly or the welding rotating assembly expands due to the heat and cannot rotate around the welding point according to the original rotation trajectory, thereby causing the gear to lock. At the same time, when the speed is too fast, it is easy to directly cause the gear to collide with the slot directly, causing damage to the entire gear. Such a situation not only affects the progress of the welding process in the actual operation process, but also easily leads to the occurrence of operational accidents. In response to this problem, the present invention proposes a solution. Summary of the Invention

[0003] The purpose of the present invention is to provide a narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism, which can prevent the locking phenomenon generated by the wire feeding transmission mechanism and the gear ring in the welding transmission mechanism during the rotation process, thereby improving the service life of the equipment and the welding efficiency, and reducing the occurrence of operating accidents. At the same time, the wire feeding mechanism is integrated at the welding gun head, and no additional wire feeding mechanism is required, making the overall equipment more compact and convenient for operation in a small space.

[0004] The technical solution of the present invention is: a narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism, including a transmission mechanism and a welding mechanism connected to the transmission mechanism, wherein the transmission mechanism is composed of a wire feeding transmission mechanism and a welding transmission mechanism arranged in the space formed by a base plate and a cover plate; the wire feeding transmission mechanism includes a base plate, a wire feeding gear ring group, a bearing and a wire feeding gear, the base plate is provided with a U-shaped slot one, a circular groove for accommodating the wire feeding gear ring group is provided around the U-shaped slot one, the circular groove is provided with an opening two matching the opening one of the U-shaped slot one, the wire feeding gear ring group includes a wire feeding gear ring, an movable The movable gear ring and the fixed gear ring, the wire feeding gear ring matches the circular groove and is provided with an opening three, one end face of the wire feeding gear ring is set in the circular groove, and the other end face is provided with a fixed gear ring and a movable gear ring, the fixed gear ring is fixedly connected to the wire feeding gear ring, and the movable gear ring is rotatably connected to the wire feeding gear ring, and wire feeding gears are provided at both ends of the bearing, the wire feeding gear at one end of the bearing is meshed with the internal teeth of the wire feeding gear ring, and the other end passes through the welding transmission mechanism and is connected to the wire feeding mechanism provided in the welding mechanism through the wire feeding gear; by arranging the fixed gear ring and the movable gear ring in the wire feeding gear ring, the U-shaped slot is completed during the welding process. The first closure provides a rotating circular track for the wire feeding transmission mechanism and the welding transmission mechanism's gear ring during the rotation process, and the circular track provides a rigid fixing effect for the wire feeding transmission mechanism and the welding transmission mechanism's gear ring, preventing the wire feeding transmission mechanism and the welding transmission mechanism's gear ring from colliding and locking with the slot during the rotation process; the welding transmission mechanism includes a pad, a welding rotating gear and a through hole for placing a magnet, the pad is provided with a slot for placing the welding rotating gear, the welding rotating gear is provided with a U-shaped slot with the same structure as that in the base plate, and the welding rotating gear is provided with a U-shaped slot. After the groove of the pad is inserted, the U-shaped groove 2, the groove, the circular groove and the U-shaped groove 1 are completely overlapped in the axial direction, and the through-holes are evenly distributed around the groove of the pad, and the magnets arranged in the through-holes are facing the wire feeding gear ring; the welding mechanism is arranged on the end face of the cover plate, including a welding gun assembly, a welding gun mounting seat, a wire feeding mechanism and a welding mounting plate; the welding mounting plate passes through the slot on the cover plate and is arranged on the end face of the welding rotating gear, and rotates with the welding rotating gear, the welding gun mounting seat and the wire feeding mechanism are arranged on the welding mounting plate, the welding gun assembly is arranged on the welding gun mounting seat, and the wire outlet of the wire feeding mechanism is facing the welding gun head in the welding gun assembly.

[0005] Furthermore, the welding transmission mechanism also includes a transmission gear set 2, a welding motor shaft and a motor gear 2. One end of the welding motor shaft is connected to the DC motor 2, and the other end is connected to the transmission gear set 2 through the motor gear 2. The transmission gear set 2 is engaged with the external teeth of the welding rotating gear. The DC motor 2 is arranged in the motor cover; the transmission gear set 2 consists of a driving wheel and three auxiliary wheels.

[0006] Furthermore, the arc length of the movable gear ring is greater than the arc length of an opening of the U-shaped slot, and the sum of the arc lengths of the movable gear ring and the fixed gear ring is less than the arc length of the wire feeding gear ring.

[0007] Furthermore, one end of the movable gear ring is aligned with the three openings on any side of the wire feeding gear ring before work starts, and a fixed gear ring is fixedly provided on the end face of the wire feeding gear ring along the direction of the wire feeding gear ring at the other end, and any end of the fixed gear ring does not overlap with any end of the three openings in the wire feeding gear ring.

[0008] Furthermore, the wire feeding transmission mechanism also includes a transmission gear group 1, a wire feeding motor shaft and a motor gear 1. One end of the wire feeding motor shaft is connected to a DC motor 1, and the other end is connected to a transmission gear group 1 through a motor gear 1. The transmission gear group 1 is engaged with the external teeth of the wire feeding gear ring, and the DC motor 1 is arranged in a motor cover; the transmission gear group 1 consists of a driving wheel and three auxiliary wheels.

[0009] Furthermore, the motor housing is provided with a button for controlling the operation of the DC motor and a handle for the operator to hold.

[0010] Furthermore, the wire feeding mechanism includes a pressure feeding mechanism cover, a pressure feeding mechanism base plate, a support column, a compression wire feeding wheel, a driving wire feeding wheel, a wire guide tube bracket and a wire guide tube. The pressure feeding mechanism base plate and the pressure feeding mechanism cover are supported and connected by the support column. The compression wire feeding wheel and the driving wire feeding wheel are sequentially arranged between the pressure feeding mechanism cover and the pressure feeding mechanism base plate. The driving wire feeding wheel is engaged with the wire feeding gear. After the welding wire enters the wire feeding mechanism, it is compressed by the driving wire feeding wheel and the compression wire feeding wheel, and then enters the wire guide tube toward the welding gun assembly. The wire guide tube is arranged between the pressure feeding mechanism cover and the pressure feeding mechanism base plate through the wire guide tube bracket.

[0011] Furthermore, the welding gun assembly includes a welding gun bracket, a welding gun, a welding gun adjustment block and a welding gun insulation plate. The welding gun insulation plate and the welding gun adjustment block are connected to each other and are arranged on the welding gun mounting seat. The welding gun bracket is arranged on the welding gun adjustment block. The welding gun adjustment block is used to fine-tune the position of the welding gun bracket. The welding gun is arranged in the welding gun bracket.

[0012] Furthermore, a wire guide wheel assembly and a wire reel assembly are provided on the outer wall of the transmission mechanism. The wire reel assembly is provided with welding wire. The wire guide wheel assembly guides the welding wire out of the wire reel assembly and introduces it into the wire feeding mechanism.

[0013] Furthermore, the cover plate and the base plate are made of titanium alloy or aluminum alloy, and the backing plate is made of titanium alloy or copper alloy.

[0014] Beneficial effects of the present invention:

[0015] (1) The present invention adopts the above-mentioned technical solution, uses a DC motor to drive the wire feeding motor shaft to rotate, and the wire feeding motor shaft drives the transmission gear set to rotate through the motor gear, and drives the wire feeding gear ring in the wire feeding gear ring group to rotate through the transmission gear set, so that the fixed gear ring follows the wire feeding gear ring to rotate. Since the movable gear ring is attracted by the magnet before the work starts, when the wire feeding gear ring starts to rotate, the movable gear ring connected to the wire feeding gear ring maintains its initial position and does not move until the fixed gear ring is driven by the wire feeding gear ring and one end contacts one end of the movable gear ring. At this time, the movable gear ring is pushed by the fixed gear ring and follows the wire feeding gear ring to rotate until the wire feeding gear ring completely closes the opening of the U-shaped slot one to form a complete circle. At the same time, the attraction of the magnet completes the positioning of the movable gear ring and completes the bridging action.

[0016] After that, the wire feeding gear ring continues to rotate in the current direction, and the fixed gear ring continues to push the movable gear ring until it replaces the position of the movable gear ring. When the wire feeding gear ring rotates in the reverse direction, the movable gear ring is no longer pushed by the fixed gear ring and maintains the current position under the action of the magnetic attraction. That is, after the initial bridging action is completed, the subsequent wire feeding gear ring can maintain the U-shaped slot in a closed state in forward or reverse rotation according to the wire feeding requirements. After that, the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism can rotate along the track of the fixed gear ring or the movable gear ring during the rotation process, providing a rigid fixing effect for the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism.

[0017] When welding is completed, it is necessary to open the closed U-shaped slot. You only need to control the wire feeding gear ring to rotate in the opposite direction, drive the fixed gear ring to rotate in the opposite direction until the other end of the fixed gear ring contacts the movable gear ring, and then continue to rotate until the movable gear ring is completely pushed into the circular groove, stop rotating, and the wire feeding gear ring retreats. At this time, the movable gear ring is positioned by the suction force of the magnet. After the wire feeding gear ring drives the fixed gear ring to retreat completely, the closed U-shaped slot is fully opened and the equipment is removed.

[0018] (2) The wire feeding mechanism in the present invention is arranged on the welding mounting plate. While the welding mounting plate rotates to output the wire, the wire feeding wheel is driven to engage with the wire feeding gear, so that the wire feeding mechanism itself has the effect of self-rotating to output the wire. Therefore, the speed and direction of the driving wire feeding wheel can be controlled by controlling the speed and direction of the DC motor 1, thereby completing further adjustment of the wire output amount and increasing or decreasing the wire output amount according to the actual welding point.

[0019] (3) The present invention completes the closure of the U-shaped slot during the welding process by arranging a fixed gear ring and a movable gear ring in the wire feeding gear ring, and provides a rotating circular track for the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism during the rotation process. The circular track provides a rigid fixing effect for the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism, thereby preventing the gear rings in the wire feeding transmission mechanism and the welding transmission mechanism from colliding and locking with the slot during the rotation process, thereby improving the service life of the equipment and the welding efficiency, and reducing the occurrence of operating accidents;

[0020] (4) The present invention integrates the wire feeding mechanism into the welding gun head, eliminating the need for an external wire feeding mechanism, making the entire device more compact and convenient for operation in a small space. In addition, the wire feeding mechanism is connected to a wire feeding transmission mechanism and rotates along with the welding rotating gear. The wire output amount is further adjusted by combining rotation and revolution, thereby increasing or decreasing the wire output amount according to the actual welding point. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional exploded view of a narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to the present invention;

[0022] Figure 2 It is a three-dimensional exploded view of the fuselage portion of the present invention;

[0023] Figure 3 It is an exploded view of the wire feeding transmission mechanism of the present invention;

[0024] Figure 4 It is a front view of the wire feeding transmission mechanism of the present invention;

[0025] Figure 5 This is an exploded view of the welding transmission mechanism of the present invention;

[0026] Figure 6 This is a front view of the welding transmission mechanism of the present invention;

[0027] Figure 7 It is an exploded view of the welding mechanism in the present invention;

[0028] Figure 8 This is a front view of the welding mechanism of the present invention;

[0029] Figure 9 It is an exploded view of the wire feeding mechanism in the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to specific embodiments.

[0031] like Figures 1 to 9As shown, the narrow-pitch anti-lock obstacle welding machine with an integrated wire feeding mechanism of the present invention, in this embodiment, includes a transmission mechanism and a welding mechanism connected to the transmission mechanism, the transmission mechanism includes a wire feeding transmission mechanism 1 and a welding transmission mechanism 2 arranged in the space formed by the base plate and the cover plate; the welding mechanism is arranged on the end surface of the cover plate 7, and includes a wire feeding mechanism 3, a welding gun assembly 4, a welding gun mounting seat 5 and a welding mounting plate 6.

[0032] In this embodiment, the wire feeding transmission mechanism 1 includes a base plate 11, a wire feeding gear ring group 12, a bearing 13 and a wire feeding gear 131. A U-shaped slot 14 is provided on the base plate 11, and a circular groove 15 for placing the wire feeding gear ring group 12 is provided around the U-shaped slot 14. The circular groove 15 is provided with an opening 2 151 that matches the opening 141 of the U-shaped slot 14.

[0033] In this embodiment, the wire feeding gear ring group 12 includes a wire feeding gear ring 121, a movable gear ring 122 and a fixed gear ring 123. The wire feeding gear ring 121 matches the circular groove 15 and is also provided with an opening three 124. One end face of the wire feeding gear ring 121 is set in the circular groove 15, and the other end face is provided with a fixed gear ring 123 and a movable gear ring 122. The fixed gear ring 123 is fixedly connected to the wire feeding gear ring 121, and the movable gear ring 122 is rotatably connected to the wire feeding gear ring 121.

[0034] In this embodiment, in order to ensure that the movable gear ring 122 can completely close the U-shaped slot 14, the arc length of the movable gear ring 122 is greater than the arc length of the opening of the U-shaped slot 14, and at the same time, the sum of the arc lengths of the movable gear ring 122 and the fixed gear ring 123 is less than the arc length of the wire feeding gear ring 121, and one end of the movable gear ring 122 is aligned with the opening three 124 on any side of the wire feeding gear ring 121 before work starts, and a fixed gear ring 123 is fixedly provided on the end face of the wire feeding gear ring 121 along the direction of the wire feeding gear ring 121 at the other end, and either end of the fixed gear ring 123 does not coincide with either end of the opening three 124 in the wire feeding gear ring 121.

[0035] In this embodiment, wire feeding gears 131 are provided at both ends of the bearing 13. The wire feeding gear 131 at one end of the bearing 13 is engaged with the internal teeth of the wire feeding gear ring 121, and the other end passes through the welding transmission mechanism 2 and is connected to the wire feeding mechanism 3 arranged in the welding mechanism through the wire feeding gear 131.

[0036] In this embodiment, the welding transmission mechanism 2 includes a pad 21, a welding rotating gear 22 and a through-hole 23 for placing a magnet. The pad 21 is provided with a slot 24 for placing the welding rotating gear 22, and the welding rotating gear 22 is provided with a U-shaped slot 25 with the same structure as that in the base plate 11. After the welding rotating gear 22 is set in the slot 24 of the pad 21, the U-shaped slot 25, the slot 24, the circular groove 15 and the U-shaped slot 1 14 are completely overlapped in the axial direction, and the through-holes 23 are evenly distributed around the slot 24 of the pad 21. The magnet arranged in the through-hole 23 is facing the wire feeding gear ring 121.

[0037] In this embodiment, the wire feeding transmission mechanism 1 also includes a transmission gear set 16, a wire feeding motor shaft 17 and a motor gear 18, wherein one end of the wire feeding motor shaft 17 is connected to a DC motor 19, and the other end is connected to the transmission gear set 16 through a motor gear 18. The transmission gear set 16 consists of a 32X0.8X5mm driving wheel and three 28X0.8X5mm auxiliary wheels. The driving wheel is engaged with the motor gear 18, and the auxiliary wheel is engaged with the outer teeth of the wire feeding gear ring 121. The DC motor 19 is arranged in the motor cover 8.

[0038] In this embodiment, the welding transmission mechanism 2 also includes a transmission gear set 26, a welding motor shaft 27 and a motor gear 28, wherein one end of the welding motor shaft 27 is connected to the DC motor 29, and the other end is connected to the transmission gear set 26 through the motor gear 28. The transmission gear set 26 consists of a 32X0.8X5mm driving wheel and three 28X0.8X5mm auxiliary wheels. The driving wheel is engaged with the motor gear 28, and the auxiliary wheel is engaged with the outer teeth of the welding rotating gear 22. The DC motor 29 is arranged in the motor cover 8.

[0039] In this embodiment, the motor housing 8 is further provided with a button 81 for controlling the operation of the DC motor and a handle 82 for the operator to hold.

[0040] In this embodiment, the wire feeding mechanism 3 includes a pressing mechanism cover 31, a pressing mechanism base plate 32, a support column 33, a pressing wire feeding wheel 34, a driving wire feeding wheel 35, a wire guide tube bracket 36 and a wire guide tube 37. The pressing mechanism base plate 32 and the pressing mechanism cover 31 are supported and connected by the support column 33. The pressing wire feeding wheel 34 and the driving wire feeding wheel 35 are sequentially arranged between the pressing mechanism cover 31 and the pressing mechanism base plate 32. After the welding wire enters the wire feeding mechanism 3, it is pressed by the driving wire feeding wheel 35 and the pressing wire feeding wheel 34 and enters the wire guide tube 37 toward the welding gun assembly 7. The wire guide tube 37 is arranged on the wire guide tube bracket 36. Between the pressure feeding mechanism cover plate 31 and the pressure feeding mechanism base plate 32, since the driving wire feeding wheel 35 is connected to the wire feeding gear 131, the speed of the driving wire feeding wheel 35 is controlled by the DC motor 19, and the output welding wire amount of the driving wire feeding wheel 35 is controlled by adjusting the speed and direction of the DC motor 19. At the same time, in this embodiment, the wire feeding mechanism 3 is arranged on the welding mounting plate 7, and can rotate with the welding rotating gear 22 to output wire, that is, there is an additional revolution to increase the wire output amount. Therefore, the wire output amount can be further adjusted by combining rotation and revolution, and the wire output amount can be increased or decreased according to the actual welding point.

[0041] In this embodiment, the welding gun assembly 4 includes a welding gun bracket 41, a welding gun, a welding gun adjustment block 42 and a welding gun insulation plate 43, wherein the welding gun insulation plate 43 and the welding gun adjustment block 42 are connected to each other and are arranged on the welding gun mounting seat 5, the welding gun bracket 41 is arranged on the welding gun adjustment block 42, and the welding gun adjustment block 42 is used to complete the fine adjustment of the point position of the welding gun bracket 41, and the welding gun is arranged in the welding gun bracket 41.

[0042] In this embodiment, a guide wheel assembly 9 and a wire reel assembly 10 are provided on the outer wall of the transmission mechanism. Welding wire is provided in the wire reel assembly 10. The guide wheel assembly 9 guides the welding wire out of the wire reel assembly 10 and introduces it into the wire feeding mechanism 3.

[0043] In this embodiment, the cover plate 7 and the base plate 11 are made of titanium alloy or aluminum alloy, and the backing plate 21 is made of titanium alloy or copper alloy.

[0044] When the present invention is in operation, the DC motor 19 drives the wire feeding motor shaft 17 to rotate, and the wire feeding motor shaft 17 drives the transmission gear set 16 to rotate through the motor gear 18, and drives the wire feeding gear ring 121 in the wire feeding gear ring group 12 to rotate through the transmission gear set 16, thereby causing the fixed gear ring 123 to rotate along with the wire feeding gear ring 121. Before the work starts, the movable gear ring 122 is attracted by the magnet set in the through hole 23. At this time, when the wire feeding gear ring 121 starts to rotate, it rotates with the wire feeding gear ring 121. The movable gear ring 122 connected to the wire gear ring 121 remains in its initial position until one end of the fixed gear ring 123 contacts one end of the movable gear ring 122 under the drive of the wire feeding gear ring 121. At this time, the movable gear ring 122 is pushed by the fixed gear ring 123 and rotates with the wire feeding gear ring 121 until the movable gear ring 122 completely closes the opening of the U-shaped slot 14 to form a complete circle. At the same time, the suction force of the magnet completes the positioning of the movable gear ring 122 and completes the bridging action.

[0045] After that, if the wire feeding gear ring 121 continues to rotate in the current direction, the fixed gear ring 123 will continue to push the movable gear ring 122 until it replaces the position of the movable gear ring 123, and continue to completely close the opening of the U-shaped slot 14. If the wire feeding gear ring 121 rotates in the opposite direction, the movable gear ring 122 will no longer be pushed by the fixed gear ring 123, and will maintain its current position under the action of the magnetic attraction. That is, after the initial bridging action is completed, the subsequent wire feeding gear ring 121 can keep the U-shaped slot 14 closed in the forward or reverse rotation according to the wire feeding requirements. After that, the gear rings in the wire feeding transmission mechanism 1 and the welding transmission mechanism 2 can rotate along the track of the fixed gear ring 123 or the movable gear ring 122 during the rotation process, providing a rigid fixing effect for the gear rings in the wire feeding transmission mechanism 1 and the welding transmission mechanism 2.

[0046] During the welding process, the wire feeding mechanism 3 is connected to the wire feeding transmission mechanism 1 to complete the wire feeding. At the same time, since the wire feeding mechanism 3 is set on the welding mounting plate 6 and rotates with the welding rotating gear 22, the operator can further adjust the wire output amount according to the size of the weld at the welding point and the rotation and revolution of the wire feeding mechanism itself to meet the actual requirements of the weld for the welding wire.

[0047] When welding is completed and the closed U-shaped slot 14 needs to be opened, it is only necessary to control the wire feeding gear ring 121 to rotate in the opposite direction, driving the fixed gear ring 123 to rotate in the opposite direction until the other end of the fixed gear ring 123 contacts the movable gear ring 122, and then continue to rotate until the movable gear ring 122 is completely pushed into the circular groove 15, stop rotating, and the wire feeding gear ring 121 retreats. At this time, the movable gear ring 122 is positioned by the suction force of the magnet. After the wire feeding gear ring 121 drives the fixed gear ring 123 to retreat completely, the closed U-shaped slot 14 is fully opened and the equipment is removed.

[0048] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism, comprising a transmission mechanism and a welding mechanism connected to the transmission mechanism, characterized in that: The transmission mechanism is composed of a wire feeding transmission mechanism and a welding transmission mechanism arranged in the space formed by the base plate and the cover plate; the wire feeding transmission mechanism includes a base plate, a wire feeding gear ring group, a bearing and a wire feeding gear, and the base plate is provided with a U-shaped slot one, and a circular groove for placing the wire feeding gear ring group is provided around the U-shaped slot one, and an opening two is provided on the circular groove that matches the opening one of the U-shaped slot one, and the wire feeding gear ring group includes a wire feeding gear ring, a movable gear ring and a fixed gear ring, and the wire feeding gear ring matches the circular groove and is provided with an opening three, and one side end face of the wire feeding gear ring The cam is provided with a fixed gear ring and a movable gear ring, the fixed gear ring is fixedly connected to the wire feeding gear ring, the movable gear ring is rotatably connected to the wire feeding gear ring, and wire feeding gears are provided at both ends of the bearing. The wire feeding gear at one end of the bearing meshes with the inner teeth of the wire feeding gear ring, and the other end passes through the welding transmission mechanism and is connected to the wire feeding mechanism arranged in the welding mechanism through the wire feeding gear; by arranging a fixed gear ring and a movable gear ring in the wire feeding gear ring, the U-shaped slot is closed during the welding process, which is convenient for the wire feeding transmission mechanism and the gear ring in the welding transmission mechanism to rotate. During the rotation process, a rotating circular track is provided, and the circular track provides a rigid fixing effect for the wire feeding transmission mechanism and the gear ring in the welding transmission mechanism to prevent the wire feeding transmission mechanism and the gear ring in the welding transmission mechanism from colliding and locking with the slot during the rotation process; the welding transmission mechanism includes a pad, a welding rotating gear and a through-hole for placing a magnet, the pad is provided with a slot for placing the welding rotating gear, and the welding rotating gear is provided with a U-shaped slot 2 with the same structure as that in the base plate, and after the welding rotating gear is arranged in the slot of the pad, the U-shaped slot 2, The slots, circular grooves and U-shaped slots completely overlap in the axial direction, and the perforations are evenly distributed around the slots of the pad, and the magnets arranged in the perforations are facing the wire feeding gear ring; the welding mechanism is arranged on the end face of the cover plate, and includes a welding gun assembly, a welding gun mounting seat, a wire feeding mechanism and a welding mounting plate; the welding mounting plate passes through the slot on the cover plate and is arranged on the end face of the welding rotating gear, and rotates with the welding rotating gear, the welding gun mounting seat and the wire feeding mechanism are arranged on the welding mounting plate, the welding gun assembly is arranged on the welding gun mounting seat, and the wire outlet of the wire feeding mechanism is facing the welding gun head in the welding gun assembly.

2. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: The welding transmission mechanism also includes a transmission gear set 2, a welding motor shaft and a motor gear 2. One end of the welding motor shaft is connected to the DC motor 2, and the other end is connected to the transmission gear set 2 through the motor gear 2. The transmission gear set 2 is engaged with the external teeth of the welding rotating gear. The DC motor 2 is arranged in the motor cover; the transmission gear set 2 consists of a driving wheel and three auxiliary wheels.

3. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: The arc length of the movable gear ring is greater than the arc length of an opening of the U-shaped slot, and the sum of the arc lengths of the movable gear ring and the fixed gear ring is less than the arc length of the wire feeding gear ring.

4. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: One end of the movable gear ring is aligned with the three openings on either side of the wire feeding gear ring before work starts, and a fixed gear ring is fixedly provided on the end face of the wire feeding gear ring along the direction of the wire feeding gear ring at the other end, and any end of the fixed gear ring does not overlap with any end of the three openings in the wire feeding gear ring.

5. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: The wire feeding transmission mechanism also includes a transmission gear set 1, a wire feeding motor shaft and a motor gear 1. One end of the wire feeding motor shaft is connected to a DC motor 1, and the other end is connected to a transmission gear set 1 through a motor gear 1. The transmission gear set 1 is engaged with the external teeth of the wire feeding gear ring. The DC motor 1 is arranged in a motor housing; the transmission gear set 1 consists of a driving wheel and three auxiliary wheels.

6. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 5, characterized in that: The motor cover is provided with a button for controlling the operation of the DC motor and a handle for the operator to hold.

7. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: The wire feeding mechanism includes a pressing mechanism cover, a pressing mechanism base plate, a support column, a compression wire feeding wheel, a driving wire feeding wheel, a wire guide tube bracket and a wire guide tube. The pressing mechanism base plate and the pressing mechanism cover are supported and connected by the support column. The compression wire feeding wheel and the driving wire feeding wheel are sequentially arranged between the pressing mechanism cover and the pressing mechanism base plate. The driving wire feeding wheel is engaged with the wire feeding gear. After the welding wire enters the wire feeding mechanism, it is compressed by the driving wire feeding wheel and the compression wire feeding wheel, and then enters the wire guide tube toward the welding gun assembly. The wire guide tube is arranged between the pressing mechanism cover and the pressing mechanism base plate through the wire guide tube bracket.

8. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: The welding gun assembly includes a welding gun bracket, a welding gun, a welding gun adjustment block and a welding gun insulation plate. The welding gun insulation plate and the welding gun adjustment block are connected to each other and are arranged on the welding gun mounting seat. The welding gun bracket is arranged on the welding gun adjustment block. The welding gun adjustment block is used to fine-tune the position of the welding gun bracket. The welding gun is arranged in the welding gun bracket.

9. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: A wire guide wheel assembly and a wire reel assembly are provided on the outer wall of the transmission mechanism. Welding wire is provided in the wire reel assembly. The wire guide wheel assembly guides the welding wire out of the wire reel assembly and then introduces it into the wire feeding mechanism.

10. The narrow-pitch anti-lock obstacle welding machine integrated with a wire feeding mechanism according to claim 1, characterized in that: The cover plate and the base plate are made of titanium alloy or aluminum alloy, and the backing plate is made of titanium alloy or copper alloy.

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