Welding equipment and process for machining protective cover of silking machine

Abstract

The invention discloses welding equipment and technology for machining a protective cover of a laying head, and relates to the technical field of mechanical welding, the welding equipment comprises a workbench, a clamping mechanism and a welding mechanism, the clamping mechanism comprises a limiting support and a clamping assembly, the limiting support is fixedly connected with the workbench, and the clamping assembly comprises a movable support, a movable sliding seat and a hinge plate; the welding mechanism comprises a supporting frame, a sliding frame, a rotating frame and a welding head, the supporting frame is fixedly connected with the workbench, the sliding frame is connected with the supporting frame in a sliding mode, the rotating frame is connected with the sliding frame in a rotating mode, and the welding head is connected with the sliding frame in a rotating mode. The welding head is slidably arranged at the bottom of the rotating frame. The clamping mechanism is linked with the movable supports through the movable sliding seats, the hinge plates and the movable supports, the distance between the multiple sets of movable supports can be flexibly adjusted, the clamping mechanism can adapt to protective cover installation seats with different inner diameters without replacing tools, and the multi-specification machining requirement is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical welding, and in particular to a welding device and process for processing a protective cover of a wire laying machine. BACKGROUND

[0002] In the steel and non-ferrous metal processing industry, the protective cover of the wire laying machine needs to have the characteristics of high temperature resistance and impact resistance as the core equipment for wire winding. The protective cover is usually composed of a metal mounting seat and an arc-shaped baffle which are spliced and welded together. The mounting seat provides fixed support, and the arc-shaped baffle forms a protective barrier. The two are integrated through edge welding of the mounting groove. With the development of large-scale and diversification of wire laying machines, the size specifications of the protective cover also increase, which puts higher requirements on the adaptability, precision and efficiency of the welding equipment.

[0003] Traditional wire laying machine protective cover welding relies on general welding equipment (such as manual arc welding machine and fixed track automatic welding machine). However, such equipment is difficult to adapt to the processing needs of the protective cover with multiple specifications and arc-shaped welds. On the one hand, the clamping tooling of the general equipment is usually fixed in size. For protective cover mounting seats with different inner diameters, the original clamping components need to be disassembled and replaced with corresponding tooling. The replacement of tooling takes a long time, seriously affecting production efficiency, and is also prone to affect welding precision due to tooling positioning deviation. On the other hand, the welding of the arc-shaped baffle and the mounting groove needs to be manually controlled by the welding gun trajectory or the workpiece position is adjusted in sections, which is difficult to achieve continuous arc-shaped welds and is prone to defects such as weld cracking and weld deviation. SUMMARY

[0004] The present application provides a welding device and process for processing a protective cover of a wire laying machine, which can solve the problem that the clamping tooling of the welding equipment in the prior art is fixed in size, and the original clamping components need to be disassembled and replaced with corresponding tooling for protective cover mounting seats with different inner diameters, which takes a long time and is prone to affect welding precision due to tooling positioning deviation.

[0005] A welding device for processing a protective cover of a wire laying machine, comprising a workbench, a clamping mechanism and a welding mechanism. The clamping mechanism comprises a limiting support and a clamping assembly. The limiting support is fixedly connected with the workbench. The clamping assembly comprises a movable support, a movable sliding seat and a hinged plate. The movable support is slidably connected with the limiting support in the horizontal direction, and the bottom of the movable support abuts against the workbench. The movable sliding seat is slidably connected with the limiting support in the vertical direction. The hinged plate is hingedly connected with the movable support and the movable sliding seat at both ends. The clamping assembly is provided in several groups and arranged in a ring array on the side of the limiting support. The welding mechanism comprises a supporting frame, a sliding frame, a rotating frame and a welding head. The supporting frame is fixedly connected with the workbench. The sliding frame is slidably connected with the supporting frame in the horizontal direction. The rotating frame is rotationally connected with the sliding frame in a horizontal state. The welding head is slidably arranged at the bottom of the rotating frame.

[0006] According to one embodiment of the present application, the clamping mechanism further comprises horizontal guide rods, which are arranged in a ring array and fixedly connected with the limiting support, and the movable support is provided with horizontal guide holes for slidingly connecting with the corresponding horizontal guide rods. The clamping mechanism further comprises a limiting snap ring, which is fixedly connected with the horizontal guide rods and located at the end of the horizontal guide rods away from the limiting support, and the outer diameter of the limiting snap ring is larger than the inner diameter of the horizontal guide holes. The clamping mechanism further comprises a first screw rod, which is in a vertical state and rotatably connected with the limiting support, and the movable support is provided with a first screw hole for connecting with the first screw rod. The clamping mechanism further comprises a first motor, which is fixedly connected with the workbench, and the output end of the first motor is rotatably connected with the first screw rod.

[0007] According to one embodiment of the present application, the sliding frame comprises a first frame body and a second frame body, the top of the support frame is provided with a first sliding groove in a horizontal state, the bottom of the first frame body is fixedly provided with a first sliding block for slidingly connecting with the first sliding groove, and the second frame body is slidingly connected with the first frame body in a vertical direction. The top of the rotating frame is fixedly provided with a rotating shaft in a vertical state, and the second frame body is provided with a rotating hole for rotatably connecting with the rotating shaft. The top of the second frame body is fixedly provided with a plurality of vertical guide rods arranged in a rectangular array, and the first frame body is provided with a plurality of vertical guide holes for slidingly connecting with the corresponding vertical guide rods. The top of the first frame body is fixedly provided with an electric push rod, the telescopic end of the electric push rod is fixedly connected with the second frame body, and is located at the middle of the vertical guide rods arranged in a rectangular array.

[0008] According to one embodiment of the present application, the rotating frame is provided with a second sliding groove in a horizontal state, the welding head is fixedly provided with a welding seat for slidingly connecting with the second sliding groove, a second screw rod is rotatably arranged in the second sliding groove, and the welding seat is provided with a second screw hole for connecting with the second screw rod. The welding mechanism further comprises a second motor, which is fixedly connected with the sliding frame, the top of the rotating frame is fixedly provided with a rotating shaft in a vertical state, and the output end of the second motor is coaxially fixedly connected with the rotating shaft.

[0009] A welding process for processing a spitting machine protective cover, which adopts the welding equipment for processing the spitting machine protective cover, and comprises the following steps: Step one, clean the surface of the mounting seat and the arc-shaped baffle workpiece, polish the mounting seat inside, the edge of the arc-shaped baffle and the mounting groove to remove rust, oxide skin and oil stains, and wipe the welding head to ensure that the surface of the welding head is free of impurities and avoid the generation of pores and slag inclusion during welding; Step 2: Based on the inner diameter of the mounting base, push the movable slide of the clamping mechanism to slide vertically downward along the limit bracket. Through the linkage of the hinge plate, drive the movable support to slide inward in the horizontal direction, so that the distance between the multiple sets of movable supports in the ring array is reduced to less than the inner diameter of the mounting base. Step 3: Place the mounting base smoothly into the clamping mechanism, aligning the axis of the mounting base with the axis of the limiting bracket. Then, push the movable slide vertically upward in the opposite direction, causing the movable support to move horizontally outward until all the movable supports abut against the inner side of the mounting base, forming a uniform annular clamping force to ensure that the mounting base is firmly fixed and without radial displacement. Step 4: Align the arc-shaped baffle with the matching mounting slot of the mounting base and insert it into the mounting slot. The arc-shaped baffle will be evenly aligned with the edge of the mounting slot of the mounting base by the positioning effect of the mounting slot contour. Step 5: Adjust the sliding frame of the welding mechanism to move horizontally along the support frame, driving the rotating frame and the welding head to move closer to the area to be welded, so that the welding nozzle of the welding head is precisely aligned with the starting welding point of the mounting groove. According to the radius of the arc baffle, adjust the position of the welding head at the bottom of the rotating frame, change the rotation radius of the welding head, and ensure that the rotation trajectory of the welding head matches the arc contour of the mounting groove. Step 6: Start the welding head and rotating frame. The rotating frame rotates horizontally around the sliding frame. After welding is completed, turn off the welding equipment and wait for the workpiece to cool to room temperature. Push the movable slide to disengage the movable support from the mounting base and remove the welded protective cover workpiece.

[0010] The advantages of this invention compared to the prior art are: 1. The clamping mechanism, through the linkage of the movable slide, hinge plate, and movable support, allows for flexible adjustment of the spacing between multiple sets of movable supports. It can adapt to protective cover mounting seats with different inner diameters without changing tooling, meeting the needs of multi-specification processing. Simultaneously, the annular array of clamping components generates a uniform annular clamping force, preventing deformation or displacement of the mounting seat and ensuring precise alignment of the arc-shaped baffle with the mounting groove, laying the foundation for high-quality welding. During the welding process, the rotation of the rotating frame allows the welding head to continuously weld along the edge of the mounting groove. Furthermore, adjusting the position of the welding head at the bottom of the rotating frame changes the rotation radius, adapting to arc-shaped workpieces of different radii, effectively preventing weld breakage or deviation, and ensuring welding accuracy.

[0011] 2. The equipment also significantly improves operational convenience and long-term production stability. The clamping mechanism only requires a simple push of the movable slide to adjust and fix the spacing, eliminating the need for frequent workpiece position adjustments during welding. This reduces operational difficulty, allowing even inexperienced personnel to quickly learn and reduce rework rates and labor costs. Structurally, the limit bracket and support frame are fixed to the worktable, with the bottom of the movable support abutting against the worktable. This design ensures strong overall stability, low wear, and a low failure rate, reducing downtime for maintenance, extending service life, and providing a reliable guarantee for the large-scale processing of wire-spinning machine protective covers.

[0012] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the attendant drawings or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings. Figure 1 It is a three-dimensional structure schematic diagram of a welding equipment and process for processing a protective cover of a spinning machine.

[0014] Figure 2 It is a three-dimensional structure schematic diagram of a welding mechanism in the application.

[0015] Figure 3 It is a three-dimensional structure schematic diagram of a clamping mechanism in the application.

[0016] Figure 4 It is a three-dimensional structure sectional view of the clamping mechanism in the application.

[0017] Figure 5 It is a three-dimensional structure schematic diagram of a protective cover workpiece in the application.

[0018] The reference signs include: 1, workbench; 2, clamping mechanism; 3, welding mechanism; 4, limiting support; 5, clamping assembly; 6, movable support; 7, movable sliding seat; 8, hinged plate; 9, support frame; 10, sliding frame; 11, rotating frame; 12, welding head; 13, horizontal guide rod; 14, limiting snap ring; 15, first screw rod; 16, first motor; 17, first frame body; 18, second frame body; 19, vertical guide rod; 20, electric push rod; 21, second screw rod; 22, second motor; 23, rotating shaft; 24, mounting seat; 25, arc-shaped baffle; 26, mounting groove. DETAILED DESCRIPTION

[0019] The specific embodiments of the application are described in detail below, but it should be understood that the scope of protection of the application is not limited by the specific embodiments.

[0020] As Figures 1 to 5The utility model discloses a kind of welding equipment for spinning machine protective cover processing, including workbench 1, clamping mechanism 2 and welding mechanism 3, the clamping mechanism 2 includes limiting support 4 and clamping component 5, the limiting support 4 is fixedly connected with workbench 1, the clamping component 5 includes movable support 6, movable slide 7 and hinged plate 8, the movable support 6 is slidably connected with limiting support 4 along horizontal direction, and the bottom of the movable support 6 is abutted with workbench 1, movable slide 7 is slidably connected with limiting support 4 along vertical direction, the both ends of the hinged plate 8 are respectively hinged with movable support 6 and movable slide 7, the clamping component 5 is provided with several groups, and it is annular array in the side of limiting support 4, the welding mechanism 3 includes support frame 9, sliding frame 10, rotating frame 11 and welding head 12, the support frame 9 is fixedly connected with workbench 1, the sliding frame 10 is slidably connected with support frame 9 along horizontal direction, the rotating frame 11 is rotationally connected with sliding frame 10 in horizontal state, and the welding head 12 is slidably arranged at the bottom of rotating frame 11.

[0021] In workpiece adaptation clamping link, limiting support 4 is fixed with workbench 1 to provide stable datum for clamping component 5, and staff can flexibly adjust clamping range according to the inner diameter of protective cover mounting seat 24: first, movable slide 7 is vertically slid along limiting support 4, since the both ends of hinged plate 8 are respectively hinged with movable slide 7 and movable support 6, and movable support 6 is slidably connected with limiting support 4 along horizontal direction, the bottom of movable support 6 is abutted with workbench 1 to ensure stable sliding, and the vertical movement of movable slide 7 is converted into horizontal movement of movable support 6 through hinged plate 8, so that the spacing between multiple movable supports 6 in annular array is reduced to less than the inner diameter of mounting seat 24, to place mounting seat 24 in reserved space; then, mounting seat 24 is placed in clamping mechanism 2, movable slide 7 is pushed in reverse, movable support 6 is moved horizontally outward, until movable support 6 is abutted with inner side of mounting seat 24, multiple clamping components 5 uniformly apply abutment force from circumferential direction, to form annular clamping force, to ensure that mounting seat 24 is stably fixed without deviation; finally, arc-shaped baffle 25 is inserted into adaptive installation groove 26 of mounting seat 24, and the positioning effect of installation groove 26 is used to realize preliminary alignment of arc-shaped baffle 25 and mounting seat 24, to lay position foundation for subsequent welding.

[0022] In the arc trajectory welding link, the support frame 9 and the workbench 1 fixedly support the welding mechanism 3, and precise welding of the edge of the mounting groove 26 is realized through multi-component linkage: first, the sliding frame 10 is adjusted to slide horizontally along the support frame 9, the rotating frame 11 and the welding head 12 are driven to approach the area to be welded as a whole, so that the welding head 12 is accurately aligned with the starting welding point of the mounting groove 26; the rotating frame 11 is started to rotate horizontally around the sliding frame 10, so that the welding head 12 always moves along the edge of the mounting groove 26, and the welding of the mounting seat 24 and the arc-shaped baffle 25 is continuously completed, without frequent adjustment of the workpiece position throughout the process, avoiding weld cracking or deviation caused by workpiece movement. At the same time, the position of the welding head 12 at the bottom of the rotating frame 11 can be adjusted, so as to adjust the radius of rotation of the welding head 12, and then adapt to the welding of arc-shaped baffles 25 and mounting seats 24 of different radii.

[0023] The clamping mechanism 2 can flexibly adjust the spacing between multiple sets of movable supports 6 through the linkage of the movable sliding seat 7, the hinged plate 8 and the movable support 6, and can adapt to mounting seats 24 of different inner diameters without replacing tooling, meeting the processing needs of multiple specifications; at the same time, the annular array of clamping assemblies 5 can form uniform annular clamping force, avoid deformation or deviation of the mounting seat 24, and ensure accurate alignment of the arc-shaped baffle 25 and the mounting groove 26, laying a foundation for high-quality welding. In the welding link, the rotating frame 11 can rotate to realize continuous welding of the welding head 12 along the edge of the mounting groove 26, and the position of the welding head 12 at the bottom of the rotating frame 11 can be adjusted to change the radius of rotation, adapt to arc-shaped workpieces of different radii, effectively avoid weld cracking or deviation, and ensure welding precision.

[0024] In addition, the device also greatly improves the operation convenience and long-term production stability. In the clamping link, only the movable sliding seat 7 needs to be simply pushed to complete the spacing adjustment and fixation, and the workpiece position does not need to be frequently adjusted during welding, reducing the operation difficulty, enabling unskilled personnel to quickly get started, reducing the rework rate and labor cost. In terms of structure, the limiting support 4 and the support frame 9 are fixed to the workbench 1, and the bottom of the movable support 6 abuts against the workbench 1, so that the overall stability is strong, the wear is small, the failure rate is low, the frequency of downtime maintenance is reduced, and the service life is prolonged, providing reliable protection for large-scale processing of the spinning machine protective cover.

[0025] According to one embodiment of the present application, the clamping mechanism 2 further comprises horizontal guide rods 13, which are fixedly connected with the limiting support 4 in a ring array, and the movable support 6 is provided with horizontal guide holes for slidingly connecting with the corresponding horizontal guide rods 13. The clamping mechanism 2 further comprises a limiting snap ring 14, which is fixedly connected with the horizontal guide rods 13 at the end away from the limiting support 4, and the outer diameter of the limiting snap ring 14 is larger than the inner diameter of the horizontal guide hole. The clamping mechanism 2 further comprises a first screw rod 15, which is rotatably connected with the limiting support 4 in a vertical state, and the movable sliding seat 7 is provided with a first screw hole for matching with the first screw rod 15. The clamping mechanism 2 further comprises a first motor 16, which is fixedly connected with the workbench 1, and the output end of the first motor 16 is rotatably connected with the first screw rod 15.

[0026] In the horizontal guiding aspect, the horizontal guide rods 13 are fixedly connected with the limiting support 4 in a ring array, and the movable support 6 is slidingly connected with the horizontal guide rods 13 through the horizontal guide holes. When the movable support 6 moves in the horizontal direction, the horizontal guide rods 13 provide accurate guidance for the movable support 6, so as to avoid deviation of the movable support 6 during sliding. The limiting snap ring 14 fixedly connected with the horizontal guide rods 13 at the end away from the limiting support 4 (the outer diameter is larger than the inner diameter of the horizontal guide hole) can prevent the movable support 6 from excessively sliding away from the horizontal guide rods 13, thereby forming stroke limiting protection. In the vertical adjustment and power driving aspect, the first screw rod 15 is rotatably connected with the limiting support 4 in a vertical state, the movable sliding seat 7 is engaged with the first screw rod 15 through the first screw hole, and the output end of the first motor 16 drives the first screw rod 15 to rotate. Through the thread engagement, the rotary motion of the first motor 16 is converted into the vertical linear motion of the movable sliding seat 7. Without manually pushing the movable sliding seat 7, the horizontal movement adjustment of the movable support 6 can be realized, and the clamping or loosening of the mounting seat 24 can be completed.

[0027] According to one embodiment of the present application, the sliding frame 10 comprises a first frame body 17 and a second frame body 18. The top of the support frame 9 is provided with a first sliding groove in a horizontal state. The bottom of the first frame body 17 is fixedly provided with a first sliding block for slidingly connecting with the first sliding groove. The second frame body 18 is slidingly connected with the first frame body 17 in a vertical direction. The top of the rotating frame 11 is fixedly provided with a rotating shaft 23 in a vertical state. The second frame body 18 is provided with a rotating hole for rotatably connecting with the rotating shaft 23. The top of the second frame body 18 is fixedly provided with a plurality of vertical guide rods 19 arranged in a rectangular array. The first frame body 17 is provided with a plurality of vertical guide holes for slidingly connecting with the corresponding vertical guide rods 19. The top of the first frame body 17 is fixedly provided with an electric push rod 20. The telescopic end of the electric push rod 20 is fixedly connected with the second frame body 18 and located at the middle of the vertical guide rods 19 arranged in a rectangular array.

[0028] In the horizontal adjustment layer, the first sliding groove at the top of the support frame 9 cooperates with the first sliding block at the bottom of the first frame body 17, so that the first frame body 17 can smoothly slide in the horizontal direction, driving the entire welding mechanism 3 to approach or move away from the area to be welded; in the vertical adjustment layer, the second frame body 18 is slidably connected with the vertical guide hole of the first frame body 17 through the vertical guide rod 19, maintaining the stability during vertical movement; after the electric push rod 20 is started, it can push the second frame body 18 to rise and fall in the vertical direction, thereby driving the rotating frame 11 and the welding head 12 to adjust the height, so that the distance between the welding head 12 and the welding surface can be adjusted by the electric push rod 20 for different thicknesses of the protective cover workpiece, ensuring the stability of the welding arc. In addition, the rotating frame 11 is rotatably connected with the second frame body 18 through the rotating shaft 23 and the rotating hole of the second frame body 18, providing stable support for subsequent arc-shaped trajectory welding.

[0029] According to one embodiment of the present application, a second sliding groove in a horizontal state is formed on the rotating frame 11, a welding seat is fixedly arranged on the welding head 12 and slidably connected with the second sliding groove, a second screw rod 21 is rotatably arranged in the second sliding groove, and the welding seat is provided with a second screw hole matched with the second screw rod 21. The welding mechanism 3 further comprises a second motor 22 fixedly connected with the sliding frame 10, a rotating shaft 23 in a vertical state is fixedly arranged at the top of the rotating frame 11, and the output end of the second motor 22 is coaxially fixedly connected with the rotating shaft 23.

[0030] In the position adjustment of the welding head 12, the second sliding groove on the rotating frame 11 is slidably connected with the welding seat, the second screw rod 21 in the second sliding groove is engaged with the second screw hole of the welding seat, when the second screw rod 21 rotates, the welding seat is driven to slide along the second sliding groove through thread transmission, thereby adjusting the position of the welding head 12 on the rotating frame 11, realizing the adjustment of the rotating radius of the welding head 12, and adapting to the welding of arc-shaped baffles 25 with different radii. In the rotating drive, the second motor 22 is fixed with the sliding frame 10, the output end of the second motor 22 is coaxially fixed with the rotating shaft 23 of the rotating frame 11, and the second motor 22 can drive the rotating shaft 23 and the rotating frame 11 to rotate synchronously after being started, so that the rotating speed of the rotating frame 11 is more uniform, ensuring the stability of the speed of the welding head 12 when moving along the arc-shaped trajectory, and avoiding the uneven phenomenon of fast welding thin and slow welding thick in the weld.

[0031] A kind of spitting machine protective cover processing welding process, the welding process adopts the welding equipment of a kind of spitting machine protective cover processing, comprising the following steps: Step one, the mounting seat 24 of spitting machine protective cover is cleaned with the surface of arc-shaped baffle 25 workpiece, iron rust, oxide skin and oil stain on the inside of mounting seat 24, the edge of arc-shaped baffle 25 and installation groove 26 are removed by sandpaper polishing, then welding head 12 is wiped, to ensure that the surface of welding head 12 is free from impurities, to avoid porosity, slag inclusion during welding; Step two, according to the inner diameter of the mounting seat 24, push the movable slide 7 of the clamping mechanism 2 to slide vertically downward along the limiting support 4, drive the movable support 6 to slide inward along the horizontal direction through the linkage of the hinged plate 8, and reduce the spacing between the multiple groups of movable supports 6 in the annular array to be less than the inner diameter of the mounting seat 24; Step three, place the mounting seat 24 stably into the clamping mechanism 2, align the axis of the mounting seat 24 with the axis of the limiting support 4, then push the movable slide 7 vertically upward in the opposite direction, drive the movable support 6 to move horizontally outward, until all the movable supports 6 abut against the inner side of the mounting seat 24, form a uniform annular clamping force, and ensure that the mounting seat 24 is stably fixed and has no radial deviation; Step four, align the arc-shaped baffle 25 with the adaptive installation slot 26 of the mounting seat 24, insert it into the installation slot 26, and through the profile positioning effect of the installation slot 26, make the arc-shaped baffle 25 uniformly aligned with the edge of the installation slot 26 of the mounting seat 24; Step five, adjust the sliding frame 10 of the welding mechanism 3 to move horizontally along the support frame 9, drive the rotating frame 11 and the welding head 12 to approach the area to be welded as a whole, make the welding nozzle of the welding head 12 accurately align with the starting welding point of the installation slot 26, according to the radius of the arc-shaped baffle 25, adjust the position of the welding head 12 at the bottom of the rotating frame 11, change the rotating radius of the welding head 12, and ensure that the rotating track of the welding head 12 matches the arc-shaped profile of the installation slot 26; Step six, start the welding head 12 and the rotating frame 11, rotate the rotating frame 11 horizontally around the sliding frame 10, after the welding is completed, turn off the welding equipment, wait for the workpiece to cool to room temperature, push the movable slide 7 to make the movable support 6 disengage from the mounting seat 24, and take out the welded protective cover workpiece.

[0032] The above disclosure is only a few specific embodiments of the present application, but the embodiments of the present application are not limited to this. Any changes that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A welding apparatus for processing a spinneret guard, characterized by, The utility model provides a welding device for the production of the metal sheet, including workbench (1), clamping mechanism (2) and welding mechanism (3), clamping mechanism (2) includes limit support (4) and clamping assembly (5), limit support (4) is fixedly connected with workbench (1), clamping assembly (5) includes movable support (6), movable slide (7) and hinged plate (8), movable support (6) is along horizontal direction with limit support (4) sliding fit connection, and the bottom of movable support (6) is with workbench (1) and is abutted, movable slide (7) is along vertical direction with limit support (4) sliding fit connection, the both ends of hinged plate (8) are respectively with movable support (6) and movable slide (7) and are hinged, clamping assembly (5) is provided with several groups, and presents annular array in the side of limit support (4), welding mechanism (3) includes support frame (9), sliding frame (10), rotary frame (11) and welding head (12), support frame (9) is fixedly connected with workbench (1), sliding frame (10) is along horizontal direction with support frame (9) sliding fit connection, rotary frame (11) is along horizontal state with sliding frame (10) rotation fit connection, welding head (12) is slidingly arranged in the bottom of rotary frame (11).

2. A welding apparatus for processing a spinneret guard according to claim 1, characterized in that Clamping mechanism (2) further includes horizontal guide rod (13), horizontal guide rod (13) is provided with several, and presents annular array with limit support (4) fixed connection, movable support (6) is seted up with the horizontal guide hole sliding fit connection with corresponding horizontal guide rod (13).

3. A welding apparatus for processing a spinneret guard according to claim 2, wherein Clamping mechanism (2) further includes limit snap ring (14), limit snap ring (14) is fixedly connected with horizontal guide rod (13), and is located at the end of horizontal guide rod (13) away from limit support (4), the outer diameter of limit snap ring (14) is greater than the inner diameter of horizontal guide hole.

4. A welding apparatus for processing a spinneret guard according to claim 1, wherein Clamping mechanism (2) further includes first screw (15), first screw (15) is along vertical state with limit support (4) rotation fit connection, movable slide (7) is seted up with the first screw hole of cooperation with first screw (15).

5. A welding apparatus for processing a spinneret guard according to claim 4, wherein Clamping mechanism (2) further includes first motor (16), first motor (16) is fixedly connected with workbench (1), and the output end of first motor (16) is rotationally connected with first screw (15).

6. A welding apparatus for processing a spinneret guard according to claim 1, wherein Sliding frame (10) includes first frame body (17) and second frame body (18), the top of support frame (9) is seted up with the first sliding groove of horizontal state, the bottom of first frame body (17) is fixedly provided with the first sliding block of sliding fit with first sliding groove, second frame body (18) is along vertical direction with first frame body (17) sliding fit connection, the top of rotary frame (11) is fixedly provided with the rotary shaft (23) of vertical state, second frame body (18) is seted up with the rotary hole of rotation fit with rotary shaft (23).

7. A welding apparatus for processing a spinneret guard according to claim 6, characterized in that The top of second frame body (18) is fixedly provided with several vertical guide rods (19) of rectangular array arrangement, and the first frame body (17) is seted up with several vertical guide holes of sliding fit with corresponding vertical guide rods (19).

8. A welding apparatus for processing a spinneret guard according to claim 7, characterized in that The top of the first frame body (17) is fixedly provided with an electric push rod (20), the telescopic end of the electric push rod (20) is fixedly connected with the second frame body (18) and is located at the middle of the vertical guide rods (19) in a rectangular array.

9. A welding apparatus for processing a spinneret guard according to claim 1, wherein A second sliding groove in a horizontal state is formed in the rotating frame (11), the welding head (12) is fixedly provided with a welding seat in sliding fit connection with the second sliding groove, a second screw rod (21) is rotatably arranged in the second sliding groove, the welding seat is provided with a second screw hole matched with the second screw rod (21), and the welding mechanism (3) further comprises a second motor (22), the second motor (22) is fixedly connected with the sliding frame (10), the top of the rotating frame (11) is fixedly provided with a rotating shaft (23) in a vertical state, and the output end of the second motor (22) is fixedly connected with the rotating shaft (23) in a same shaft manner.

10. A welding process for processing a spinneret guard, the welding process using a welding apparatus for processing a spinneret guard according to any one of claims 1 to 9, characterized in that The method comprises the following steps: Step one, clean the workpiece surface of the mounting seat (24) and the arc-shaped baffle (25) of the wire feeder protective cover, polish the mounting seat (24) inside, the edge of the arc-shaped baffle (25) and the mounting groove (26) inside with sandpaper to remove rust, oxide skin and oil stains, and wipe the welding head (12) to ensure that the surface of the welding head (12) is free of impurities to avoid pores and slag inclusion during welding; Step two, according to the inner diameter of the mounting seat (24), push the movable sliding seat (7) of the clamping mechanism (2) to slide vertically downward along the limiting support (4), drive the movable support (6) to slide inward along the horizontal direction through the linkage of the hinged plate (8), and reduce the spacing between the multiple movable supports (6) in the annular array to be less than the inner diameter of the mounting seat (24); Step three, stably place the mounting seat (24) into the clamping mechanism (2) to align the axis of the mounting seat (24) with the axis of the limiting support (4), then reversely push the movable sliding seat (7) to slide vertically upward, drive the movable support (6) to move horizontally outward, and until all the movable supports (6) abut against the inside of the mounting seat (24) to form uniform annular clamping force, ensure that the mounting seat (24) is stably fixed and has no radial deviation; Step four, align the arc-shaped baffle (25) with the adaptive mounting groove (26) of the mounting seat (24), insert it into the mounting groove (26), and through the contour positioning effect of the mounting groove (26), align the arc-shaped baffle (25) with the edges of the mounting groove (26) of the mounting seat (24) uniformly; Step five, adjust the sliding frame (10) of the welding mechanism (3) to move horizontally along the support frame (9), drive the rotating frame (11) and the welding head (12) to approach the area to be welded as a whole, accurately align the welding nozzle of the welding head (12) with the starting welding point of the mounting groove (26), adjust the position of the welding head (12) at the bottom of the rotating frame (11) according to the radius of the arc-shaped baffle (25), change the rotation radius of the welding head (12), and ensure that the rotation track of the welding head (12) matches the arc-shaped contour of the mounting groove (26); Step six, start the welding head (12) and rotating frame (11), rotating frame (11) rotates around the sliding frame (10) horizontally, after welding, turn off the welding equipment, and wait for the workpiece to cool to room temperature, push the movable sliding seat (7) to make the movable support (6) disengage from the mounting seat (24), and take out the welded protective cover workpiece.

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