Skirt plate roll welding machine and skirt plate roll welding mechanism thereof

Abstract

The utility model discloses a kind of skirt plate roll welding mechanisms, include supporting assembly, rotary driver, front follow-up top pressure piece, rear follow-up top pressure piece, front driver, welding torch device and pressing device. Pressing device includes the pressing follower in the upper of supporting assembly and the pressing driver for driving pressing follower to be close to or away from supporting assembly downwards upwards. The skirt plate roll welding mechanism of the utility model can improve roll welding efficiency and quality. In addition, the utility model also discloses a kind of skirt plate roll welding machine comprising rack, skirt plate assembly spot welding mechanism and the skirt plate roll welding mechanism.

Description

Technical Field

[0001] This utility model relates to the field of pipe pile production, and in particular to a skirt plate rolling welding machine and its skirt plate rolling welding mechanism. Background Technology

[0002] As is well known, in the pipe pile industry, the skirt plate is composed of an end plate and an annular skirt. In the assembly process of the skirt plate, the end plate and the annular skirt are first connected together. Then, the rib pressing mechanism can press out the annular ribs on the annular skirt to fix the annular skirt to the end plate. Alternatively, the end plate and the annular skirt can be welded together to obtain the skirt plate.

[0003] In the Chinese patent application No. 2024232045861 and the patent application entitled "Skirt Assembly Rolling System", the pre-fixed annular skirt and end plate are pushed from the front and rear and supported from below during the rolling welding process. The supporting component drives the annular skirt and end plate to rotate together, thereby meeting the need of the welding gun to perform circumferential rolling welding between the annular skirt and end plate.

[0004] However, the annular skirt and end plate supported by the support component are not constrained above, so slippage occurs when the support component rotates together with the pre-fixed annular skirt and end plate, which affects the efficiency and quality of the roll welding.

[0005] Therefore, there is an urgent need for a skirt board rolling welding machine and its skirt board rolling welding mechanism to overcome one or more of the above-mentioned defects. Utility Model Content

[0006] One objective of this invention is to provide a skirt plate rolling welding mechanism that prevents slippage during the rolling welding process, thereby improving the efficiency and quality of rolling welding.

[0007] Another objective of this invention is to provide a skirt plate rolling welding machine that prevents slippage during the rolling welding process, thereby improving the efficiency and quality of rolling welding.

[0008] To achieve the above objectives, this utility model provides a skirt plate roll welding mechanism mounted on a frame, suitable for circumferential roll welding between pre-fixed end plates and annular skirts to obtain a skirt plate. It includes a support assembly for supporting the pre-fixed end plates and / or annular skirts; a rotation driver for driving the support assembly to rotate the end plates and annular skirts together; a front follower pressing member for pressing the annular skirts supported by the support assembly from the front; a rear follower pressing member for pressing the end plates supported by the support assembly from the rear; and a front driver for driving the front follower pressing member to move backward toward or forward away from the support assembly. A welding torch device for welding the end plate and annular skirt that rotate with the support assembly together, and a pressing device for pressing down on the end plate and / or annular skirt supported by the support assembly from above, the pressing device comprising a pressing follower located above the support assembly and a pressing driver for driving the pressing follower downward toward or upward away from the support assembly.

[0009] Compared with existing technologies, by using a pressing device for pressing down on the end plate and / or annular skirt supported by the support assembly from above, the pressing device includes a pressing follower located above the support assembly and a pressing driver for driving the pressing follower downward toward or upward away from the support assembly. This design ensures that the end plate and / or annular skirt supported by the support assembly are also subjected to downward pressure from above by the pressing device. The end plate and annular skirt are constrained by the pressing follower, the front pressing member, the rear pressing member, and the support assembly. Therefore, there is no slippage when the rotation driver drives the support assembly to rotate together with the end plate and annular skirt, thereby improving the efficiency and quality of roll welding.

[0010] Preferably, the skirt welding mechanism of this utility model further includes front and rear slides located behind the rear follower top pressing member and a sliding drive for driving the front and rear slides to slide back and forth, and the supporting component and the rotation drive are each assembled on the front and rear slides.

[0011] Preferably, the support assembly includes two parallel support shafts arranged side-by-side, with the rear follower pressing member located in the gap between the two support shafts. The rear follower pressing members are two spaced apart and arranged vertically. The downward pressing follower is located in the gap between the two rear follower pressing members and also protrudes forward from the rear follower pressing members. The front follower pressing members are two intersecting members.

[0012] Preferably, the front follower pressing member, the rear follower pressing member, and the downward pressing follower member can be rollers or bearings.

[0013] Preferably, one of the front follower pressing members is arranged horizontally, and the other front follower pressing member is arranged vertically. The vertically arranged front follower pressing member is located directly below the horizontally arranged front follower pressing member. There are two front drivers fixed on the frame and arranged side by side. The output end of each front driver is assembled and connected to one end of the horizontally arranged front follower pressing member. The welding torch device is located below the horizontally arranged front follower pressing member. The welding torch device includes a welding torch and a moving driver for driving the welding torch to move back and forth. The welding torch is also adjacent to the vertically arranged front follower pressing member.

[0014] Preferably, the skirt board rolling welding mechanism of this utility model further includes a feeding inclined plate located directly below the end plate supported by the supporting component and the annular skirt belt. The feeding inclined plate is arranged at an upward and downward inclination and is used for feeding the skirt board.

[0015] Preferably, the skirt welding mechanism of this utility model further includes a blocking component for preventing the pre-fixed end plate and annular skirt from accidentally rolling out of the support assembly. The blocking component is arranged on the same side as the rear follower pressing member. The blocking component includes a blocking member and a blocking actuator for driving the blocking member to extend forward into the rear follower pressing member or retract backward into the rear follower pressing member.

[0016] To achieve the above objectives, the skirt plate rolling welding machine of this utility model includes a frame, a skirt plate assembly and spot welding mechanism assembled on the frame for assembling the end plate and the annular skirt together and then spot welding in the circumferential direction, and the aforementioned skirt plate rolling welding mechanism. The skirt plate rolling welding mechanism is assembled on the frame and located to the left or right of the skirt plate assembly and spot welding mechanism.

[0017] Preferably, the skirt welding machine of this utility model further includes a guide mechanism mounted on the frame and used to guide the end plates and annular skirts that are pre-fixed together to the support assembly for rolling.

[0018] Preferably, the guiding mechanism includes an upper and lower driver, an upper and lower tilting bracket, a push driver, and a front push bracket. The push driver is mounted at the end of the upper and lower tilting bracket, and the output end of the push driver is mounted and connected to the front push bracket. The output end of the upper and lower driver is mounted and connected to the upper and lower tilting bracket. The upper and lower driver is used to drive the upper and lower tilting bracket and the front push bracket to move downward into or upward out of the gap between the front follower push member and the rear follower push member.

[0019] Compared with existing technologies, by using a pressing device for pressing down on the end plate and / or annular skirt supported by the support assembly from above, the pressing device includes a pressing follower located above the support assembly and a pressing driver for driving the pressing follower downward toward or upward away from the support assembly. This design ensures that the end plate and / or annular skirt supported by the support assembly are also subjected to downward pressure from above by the pressing device. The end plate and annular skirt are constrained by the pressing follower, the front pressing member, the rear pressing member, and the support assembly. Therefore, there is no slippage when the rotation driver drives the support assembly to rotate together with the end plate and annular skirt, thereby improving the efficiency and quality of roll welding. Attached Figure Description

[0020] Figure 1 This is a perspective view of the skirt plate welding machine of this utility model when the guide mechanism is in the guide position and the support component is in the retracted position.

[0021] Figure 2 This is a perspective view of the skirt plate welding machine of this utility model when the guiding mechanism is in the non-guiding position and the supporting component is in the retracted position.

[0022] Figure 3 yes Figure 2 A stereoscopic view from another angle.

[0023] Figure 4 yes Figure 1 A perspective view showing the hidden positions of the skirt panel assembly spot welding mechanism, guide mechanism, and frame for assembling the skirt panel assembly spot welding mechanism.

[0024] Figure 5 yes Figure 4 A plan view viewed in the direction indicated by arrow B.

[0025] Figure 6 yes Figure 4 A floor plan viewed in the direction indicated by arrow A.

[0026] Figure 7 yes Figure 4 A 3D view showing the front follow-up top pressure component, front driver, feeding tilt plate, and corresponding positions of the frame.

[0027] Figure 8 This is a perspective view of the supporting assembly, rotating drive, front and rear slides, and front and rear drive assembly assembled together in the skirt plate rolling welding mechanism of this utility model.

[0028] Figure 9 The diagram shows the state when the end plate is not assembled with the annular skirt.

[0029] Figure 10 This diagram shows the state of the end plates and the annular skirt assembly that are pre-fixed together.

[0030] Figure 11 The diagram shows the state of the skirt obtained by circumferentially rolling welding between the pre-fixed end plates and the annular skirt belt.

[0031] Figure 12 yes Figure 11 Enlarged view of section D. Detailed Implementation

[0032] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0033] Please see Figure 1 and Figure 10 The skirt panel welding machine 1000 of this utility model includes a skirt panel welding mechanism 100, a frame 200, and a skirt panel assembly and spot welding mechanism 400. The skirt panel assembly and spot welding mechanism 400 is mounted on the frame 200, and the frame 200 provides support for the skirt panel assembly and spot welding mechanism 400. The skirt panel assembly and spot welding mechanism 400 is used to... Figure 9 After the end plate 310 and the annular skirt 320 are assembled together in their separated state, circumferential spot welding is performed between the end plate 310 and the annular skirt 320. This ensures that there are at least one, two, or three weld points between the end plate 310 and the annular skirt 320 in the circumferential direction, thereby achieving the purpose of pre-fixing the end plate 310 and the annular skirt 320 together. (See the diagram for the state.) Figure 10 As shown, this prepares for the rolling welding of the skirt panel welding mechanism 100. The skirt panel welding mechanism 100 is mounted on the frame 200, which provides support for it. Furthermore, the skirt panel welding mechanism 100 is located to the right of the skirt panel assembly spot welding mechanism 400. Obviously, depending on actual needs, the skirt panel welding mechanism 100 can also be arranged to the left of the skirt panel assembly spot welding mechanism 400. Therefore, it is not considered... Figure 1 and Figure 2 The details shown are for illustrative purposes only. It should be noted that since the skirt assembly spot welding mechanism 400 is not an improvement in this application, it will not be described in detail here.

[0034] Combined Figures 3 to 8 The skirt plate roll welding mechanism 100 is used for... Figure 10 The end plates 310 and the annular skirt 320, which are pre-fixed together, are circumferentially rolled together to obtain... Figure 11The skirt panel shown is 300. The skirt welding mechanism 100 includes a support assembly 10 for supporting the end plate 310 and / or the annular skirt 320 that are pre-fixed together, a rotation driver 20 for driving the support assembly 10 to rotate together with the end plate 310 and the annular skirt 320, a front follower pressing member 30 for following up and pressing the annular skirt 320 supported by the support assembly 10 from the front, a rear follower pressing member 40 for following up and pressing the end plate 310 supported by the support assembly 10 from the rear, a front driver 50 for driving the front follower pressing member 30 to move backward toward or forward away from the support assembly 10, a welding gun device 60 for welding the end plate 310 and the annular skirt 320 that rotate with the support assembly 10 together, and a pressing device 70 for pressing down on the end plate 310 and / or the annular skirt 320 supported by the support assembly 10 from above.

[0035] The pressing device 70 includes a pressing follower 71 located above the support assembly 10 and a pressing driver 72 for driving the pressing follower 71 downward toward or upward away from the support assembly 10. Therefore, before roll welding, the pressing driver 72 drives the pressing follower 71 to move downward, so that the pressing follower 71 and the support assembly 10 together press against the end plate 310 and / or the annular skirt 320 from the top and bottom, thus preparing for the support assembly 10 to drive the end plate 310 and the annular skirt 320 to move together. At the same time, the front driver 50 also drives the front follower pressing member 30 to move closer to the rear follower pressing member. The movement of the pressure member 40 causes the end plate 310 and the annular skirt 320 supported by the support assembly 10 to be jointly pressed by the front follower pressure member 30 and the rear follower pressure member 40 in the front-rear direction. When the end plate 310 and the annular skirt 320 supported by the support assembly 10 are jointly pressed by the front follower pressure member 30, the rear follower pressure member 40, the downward pressure follower member 71, and the support assembly 10, the rotation driver 20 and the welding gun device 60 work. The welding gun device 60 performs circumferential roll welding between the end plate 310 and the annular skirt 320, which are rotated by the support assembly 10, thereby obtaining... Figure 11 The skirt panel 300 is shown. Specifically, in Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 In this example, the rotary drive 20 is a motor that can drive the support assembly 10 to rotate via belt drive 21. Obviously, depending on actual needs, the motor can also drive the support assembly 10 to rotate via chain drive or gear drive, or at least a combination of belt drive 21, chain drive, and gear drive. Therefore, it is not considered... Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 8 The above is for reference only. For more details, see the description below.

[0036] like Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As an example, the skirt board rolling welding mechanism 100 also includes front and rear slide blocks 80a located behind the rear follower pressing member 40 and a sliding actuator 80b for driving the front and rear slide blocks 80a to slide back and forth. At this time, the support assembly 10 and the rotation actuator 20 are each assembled on the front and rear slide blocks 80a. Therefore, through the cooperation of the sliding actuator 80b and the front and rear slide blocks 80a, the support assembly 10 can extend forward or retract backward into the rear follower pressing member 40 to facilitate the unloading operation of the skirt board 300. Specifically, in Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As an example, the sliding actuator 80b can be a pneumatic or hydraulic cylinder fixed to the frame 200, so that the sliding actuator 80b can quickly drive the front and rear slides 80a to the front or rear limit position; obviously, depending on actual needs, the sliding actuator 80b can also be an electric actuator or a linear motor, etc., therefore, it is not limited to... Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 The above is the limit.

[0037] Combination Figures 4 to 7 As an example, the support assembly 10 includes two parallel support shafts 11 arranged side-by-side, with a rear follower pressing member 40 located in the gap 12 between the two support shafts 11. This arrangement allows for a more compact relationship between the rear follower pressing member 40 and the support assembly 10, ensuring the reliability of the rear follower pressing member 40 in pressing against the end plate 310 supported by the support assembly 10. The rear follower pressing members 40 are two spaced apart and vertically arranged to accommodate different specifications. The production requirements of skirt panel 300 necessitate the following: the downward pressing follower 71 is located in the gap 41 between the two rear following pressing members 40, so that the arrangement between the downward pressing follower 71 and the rear following pressing members 40 is more compact. The downward pressing follower 71 also protrudes forward from the rear following pressing members 40 to meet the need for the downward pressing follower 71 to press the end plate 310 and / or the annular skirt belt 320 from above; while the front following pressing members 30 are two intersecting members to accommodate the production needs of skirt panels 300 of different specifications. Specifically, in Figures 4 to 7In this example, the front follower pressing member 30, the rear follower pressing member 40, and the downward pressing follower member 71 can be rollers to effectively reduce the resistance of their rotation. Obviously, depending on actual needs, the front follower pressing member 30, the rear follower pressing member 40, and the downward pressing follower member 71 can also be rollers; therefore, it is not necessary to consider them as rollers. Figures 4 to 7 The above is for reference only. Additionally, regarding... Figures 4 to 6 In this example, one front follower pressing member 30 is arranged horizontally, and the other front follower pressing member 30 is arranged vertically. The vertically arranged front follower pressing member 30 is located directly below the horizontally arranged front follower pressing member 30. This design can more reliably meet the production needs of skirt panels 300 of different specifications. Correspondingly, there are two front drivers 50 fixed to the frame 200 and arranged side by side. The output end 51 of each front driver 50 is assembled and connected to one end of the horizontally arranged front follower pressing member 30 to ensure the stability and smoothness of the horizontally arranged front follower pressing member 30's forward and backward translation. The welding torch device 60 is located below the horizontally arranged front follower pressing member 30. The welding torch device 60 includes a welding torch 61 and a moving driver 62 for driving the welding torch 61 to move forward and backward. The welding torch 61 is also adjacent to the vertically arranged front follower pressing member 30 to simplify the structure of the welding torch device 60. More specifically, in Figures 4 to 7 In this example, the movable driver 62 is fixed to the frame 200. The movable driver 62 and the front driver 50 can be pneumatic or hydraulic cylinders, enabling the movable driver 62 to quickly move the welding torch 61 to its front or rear limit position, and also enabling the front driver 50 to quickly move the front follower pressing member 30 to its front or rear limit position. Obviously, depending on actual needs, the movable driver 62 and the front driver 50 can also be electric actuators or linear motors, etc., therefore, it is not limited to... Figures 4 to 7 The above is the limit.

[0038] Combination Figures 1 to 8As an example, the skirt welding mechanism 100 also includes a feed ramp 80c located directly below the end plate 310 and the annular skirt 320 supported by the support assembly 10, and a blocking assembly 90 for preventing the pre-fixed end plate 310 and the annular skirt 320 from accidentally rolling out of the support assembly 10. The blocking assembly 90 is arranged on the same side as the rear follower pressing member 40, that is, relative to the front follower pressing member 30, they are both located behind the front follower pressing member 30; the blocking assembly 90 includes a blocking member 91 and a blocking actuator 92 for driving the blocking member 91 to extend forward into the rear follower pressing member 40 or retract backward into the rear follower pressing member 40, so that the blocking member 91 is driven forward by the blocking actuator 92 during the process of the pre-fixed end plate 310 and the annular skirt 320 rolling to the support assembly 10. The rear follower pressing member 40, along with the blocking member 91, prevents the pre-fixed end plate 310 and annular skirt 320 from accidentally rolling off the support assembly 10, ensuring the reliability of the support assembly 10 in supporting the pre-fixed end plate 310 and annular skirt 320. Therefore, during welding and unloading, the blocking driver 92 drives the blocking member 91 to retract rearward to the rear follower pressing member 40, preventing the blocking member 91 from causing collision interference to the pressing operation of the front follower pressing member 30 and the unloading operation of the skirt 300. Furthermore, the unloading ramp 80c is arranged with an upward and downward inclination, providing unloading convenience for the skirt 300. Specifically, in... Figure 3 , Figure 7 and Figure 8 As an example, the blocking actuator 92 can be a pneumatic or hydraulic cylinder fixed to the frame 200, so that the blocking actuator 92 can quickly drive the blocking member 91 to the blocking position or the non-blocking position; obviously, depending on actual needs, the blocking actuator 92 can also be an electric actuator or a linear motor, etc., so it is not limited to Figure 3 , Figure 7 and Figure 8 The above is the limit.

[0039] In order to improve the reliability of the end plate 310 and the annular skirt belt 320 rolling onto the support assembly 10 after being assembled and spot-welded together by the skirt assembly spot welding mechanism 400, Figure 1 and Figure 2 As an example, the skirt plate rolling welding machine 1000 of this utility model also includes a guide mechanism 500 mounted on the frame 200 and used to guide the pre-fixed end plate 310 and the annular skirt 320 to roll together toward the support assembly 10. Specifically, in Figure 1 and Figure 2As an example, the guide mechanism 500 includes a vertical drive 510, a vertical tilting bracket 520, a push drive 530, and a front push bracket 540. The push drive 530 is mounted at the end of the vertical tilting bracket 520 to meet the requirement that the push drive 530 moves vertically following the vertical tilting bracket 520, and also to prevent the push drive 530 from moving downward together with the vertical tilting bracket 520 and the front push bracket 540 into the gap 34 between the front follower push member 30 and the rear follower push member 40 (see [link to documentation]). Figure 6 The gap 34 is occupied when the push drive 530 is connected to the front push support 540 to meet the need for the front push support 540 to move back and forth driven by the push drive 530; the output end of the up and down drive 510 is connected to the up and down tilt support 520, and the up and down drive 510 drives the up and down tilt support 520 and the front push support 540 to move downward into or upward out of the gap 34 between the front follower push member 30 and the rear follower push member 40. Alternatively, the up and down drive 510 is mounted on the frame 200, and the frame 200 provides support for the up and down drive 510; therefore, before the end plate 310 and the annular skirt 320, which are pre-fixed together, roll to the support assembly 10, the up and down drive 510 drives the up and down tilt support 520. Together with the front push bracket 540, it moves downward into the gap 34 between the front follower push member 30 and the rear follower push member 40 and is in a guiding position. When the pre-fixed end plate 310 and the annular skirt 320 roll along the front push bracket 540 to the support assembly 10, the front push bracket 540, driven by the push driver 530, pushes the pre-fixed end plate 310 and the annular skirt 320 backward to a position where they push against the rear follower push member 40. Then, the front push bracket 540 is driven forward to reset by the push driver 530. After resetting, the upper and lower driver 510 drives the upper and lower tilt bracket 520 and the front push bracket 540 to move upward together out of the gap 34 between the front follower push member 30 and the rear follower push member 40 and are in a non-guiding position. It should be noted that when the skirt welding mechanism 100 includes the blocking component 90, before the pre-fixed end plate 310 and annular skirt 320 roll to the support component 10, the blocking actuator 92 drives the blocking member 91 to extend forward and follow the pressing member 40 to be in the blocking position; when the pre-fixed end plate 310 and annular skirt 320 roll together along the front push bracket 540 to the support component 10, the blocking actuator 92 then drives the blocking member 91 to retract backward and follow the pressing member 40 to be in the non-blocking position. Furthermore, the push actuator 530 and the upper and lower actuator 510 can be cylinders or hydraulic cylinders; obviously, depending on actual needs, the push actuator 530 and the upper and lower actuator 510 are not necessarily... Figure 1 and Figure 2 The above is the limit.

[0040] Compared with the prior art, by means of a pressing device 70 for pressing down on the end plate 310 and / or annular skirt 320 supported by the support assembly 10 from above, the pressing device 70 includes a pressing follower 71 located above the support assembly 10 and a pressing driver 72 for driving the pressing follower 71 downward toward or upward away from the support assembly 10. This design ensures that the end plate 310 and / or annular skirt 320 supported by the support assembly 10 are also subjected to the pressing action from above by the pressing device 70. The end plate 310 and annular skirt 320 are constrained by the pressing follower 71, the front follower pressing member 30, the rear follower pressing member 40 and the support assembly 10 together, so there is no slippage when the rotation driver 20 drives the support assembly 10 to rotate together with the end plate 310 and annular skirt 320, thereby improving the efficiency and quality of roll welding.

[0041] It should be noted that, at Figure 11 and Figure 12 In the text, reference numeral 330 indicates a roll-welded structure circumferentially welded between the pre-fixed end plate 310 and the annular skirt 320. This roll-welded structure is preferably a continuous full circle, but it can also be a full circle with multiple breaks, depending on actual needs.

[0042] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. A skirt board roll welding mechanism, assembled on a frame, and suitable for circumferential roll welding between pre-fixed end plates and annular skirts to obtain a skirt board, the skirt board roll welding mechanism comprising a support assembly for supporting the pre-fixed end plates and / or annular skirts, a rotation driver for driving the support assembly to rotate together with the end plates and annular skirts, a front follower pressing member for following and pressing the annular skirts supported by the support assembly from the front, a rear follower pressing member for following and pressing the end plates supported by the support assembly from the rear, a front driver for driving the front follower pressing member to move backward toward or forward away from the support assembly, and a welding torch device for welding the end plates and annular skirts that rotate with the support assembly together, characterized in that... The skirt welding mechanism further includes a pressing device for pressing down on the end plate and / or annular skirt supported by the support assembly from above. The pressing device includes a pressing follower located above the support assembly and a pressing driver for driving the pressing follower downward toward or upward away from the support assembly.

2. The skirt plate roll welding mechanism according to claim 1, characterized in that, It also includes front and rear slides located behind the rear follower top pressure member and a sliding drive for driving the front and rear slides to slide back and forth, with the support assembly and the rotation drive each assembled on the front and rear slides.

3. The skirt plate roll welding mechanism according to claim 1, characterized in that, The support assembly includes two parallel support shafts arranged side-by-side, with the rear follower pressing member located in the gap between the two support shafts. The rear follower pressing members are two separate, vertically arranged members. The downward pressing follower is located in the gap between the two rear follower pressing members and protrudes forward from the rear follower pressing members. The front follower pressing members are two intersecting members.

4. The skirt plate rolling welding mechanism according to claim 1, characterized in that, The front follow-up pressing component, the rear follow-up pressing component, and the downward pressing follow-up component can be rollers or bearings.

5. The skirt plate roll welding mechanism according to claim 3, characterized in that, One of the front follower-type pressing members is arranged horizontally, and the other front follower-type pressing member is arranged vertically. The vertically arranged front follower-type pressing member is located directly below the horizontally arranged front follower-type pressing member. There are two front drivers fixed on the frame and arranged side by side. The output end of each front driver is assembled and connected to one end of the horizontally arranged front follower-type pressing member. The welding torch device is located below the horizontally arranged front follower-type pressing member. The welding torch device includes a welding torch and a moving driver for driving the welding torch to move back and forth. The welding torch is also adjacent to the vertically arranged front follower-type pressing member.

6. The skirt plate roll welding mechanism according to claim 1, characterized in that, It also includes a feed ramp located directly below the end plate and the annular skirt supported by the support assembly, the feed ramp being arranged at an upward and downward inclination, the feed ramp being used for feeding the skirt.

7. The skirt plate roll welding mechanism according to claim 1, characterized in that, It also includes a blocking assembly for preventing the pre-fixed end plates and annular skirts from accidentally rolling out of the support assembly. The blocking assembly is arranged on the same side as the rear follower pressing member. The blocking assembly includes a blocking member and a blocking actuator for driving the blocking member to extend forward into the rear follower pressing member or retract backward into the rear follower pressing member.

8. A skirt plate welding machine, comprising a frame and a skirt plate assembly and spot welding mechanism mounted on the frame for assembling end plates and annular skirt strips together and then spot welding them in the circumferential direction, characterized in that, The skirt board welding machine further includes a skirt board welding mechanism according to any one of claims 1 to 7, wherein the skirt board welding mechanism is mounted on the frame and located to the left or right of the skirt board assembly spot welding mechanism.

9. The skirt plate welding machine according to claim 8, characterized in that, It also includes a guide mechanism mounted on the frame and used to guide the pre-fixed end plates and annular skirts to roll toward the support assembly.

10. The skirt plate welding machine according to claim 9, characterized in that, The guiding mechanism includes an upper and lower driver, an upper and lower tilting bracket, a push driver, and a front push bracket. The push driver is mounted at the end of the upper and lower tilting bracket, and the output end of the push driver is connected to the front push bracket. The output end of the upper and lower driver is connected to the upper and lower tilting bracket. The upper and lower driver is used to drive the upper and lower tilting bracket and the front push bracket to move downward into or upward out of the gap between the front follower push member and the rear follower push member.

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