An automated welding equipment

Abstract

The present invention belongs to the technical field of steel strip production, and specifically relates to an automated welding equipment, comprising: a pre-positioning assembly, comprising a positioning portion installed on the workbench table for centering the steel strip, and a second limiting member and a first limiting member respectively connected to the front and rear sides of the positioning portion for limiting the movement of the steel strip; an automatic feeding assembly for arc-starting and closing plates, comprising two groups of barrels connected to the front and rear sides of the positioning portion for loading arc-starting and closing plates, and an ejection assembly arranged at the bottom of the barrel for automatically ejecting the arc-starting and closing plates. The present invention, through the mutual cooperation between the automatic welding machine, the pre-positioning assembly, the automatic feeding assembly for arc-starting and closing plates, and the secondary positioning assembly that moves in a follow-up manner with the automatic feeding assembly for arc-starting and closing plates, can achieve automatic centering of the reference of the two steel strip ends when welding the steel strip, and realize automatic loading of the arc-starting and closing plates, so as to improve the quality and efficiency of welding.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment production, and in particular relates to automated welding equipment. Background Art

[0002] High-precision welding of steel strip is a key process in high-end equipment manufacturing, aerospace, new energy vehicles, and other fields. For example, for thin-walled steel strips ≤3mm thick, a micro-beam plasma 60-degree bevel welding process is often used to achieve seamless, single-sided welding and double-sided forming. This process precisely controls the plasma arc energy to form a uniform molten pool at the steel strip joint (60° bevel angle). This process eliminates the need for additional back support to achieve a well-formed weld, meeting the high-strength and high-airtightness welding requirements (e.g., welding automotive fuel tanks and aviation ducts).

[0003] As is well known to those skilled in the art, the use of arc strikers and arc eliminators during welding can improve welding quality by reducing problems such as insufficient penetration and shrinkage cavities caused by arc instability during the start and end of welding. Currently, automated equipment for micro-beam plasma bevel seam welding on the market generally has functions such as weld seam tracking and adaptive parameter adjustment. However, there is still a technical gap in the loading and unloading of arc strikers and arc eliminators: manual loading and unloading of arc strikers and arc eliminators is required. According to GB / T31032-2014 "Quality Requirements for Plasma Arc Welding", arc strikers and arc eliminators must be made of the same material and thickness as the workpiece to be welded, and the installation deviation of the arc strikers and arc eliminators must be controlled within ±0.3mm. Since manual loading depends on factors such as manual operation experience and state, manual operation not only has efficiency issues, but also its stability in meeting regulations needs to be improved.

[0004] In view of this, the present invention provides an automated welding device to solve the above problems. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: an automated welding device comprising:

[0006] An automatic welding machine, comprising a workbench and an automatic welding mechanism for automatically welding a workpiece;

[0007] A pre-positioning assembly, comprising a positioning portion mounted on the workbench surface for centering the steel strip, and a second limiting member and a first limiting member respectively connected to the front and rear sides of the positioning portion for limiting the movement of the steel strip;

[0008] The automatic loading assembly for arc striking and closing plates comprises two sets of barrels connected to the front and rear sides of the positioning portion for loading arc striking and closing plates, and an ejection assembly arranged at the bottom of the barrel for automatically ejecting the arc striking and closing plates.

[0009] As a preferred embodiment of the present invention, an automated welding equipment further includes a secondary positioning assembly, which includes a driving disk connected to the ejection assembly and moving with the ejection assembly, a linkage rod connected to the peripheral side of the driving disk, and a pressure plate connected to the linkage rod. When the driving disk moves, the linkage rod drives the pressure plate to reciprocate.

[0010] As a preferred automated welding equipment of the present invention, the positioning portion includes a positioning platform, a weld forming groove obliquely opened on the top surface of the positioning platform, and a centering mechanism movably arranged in the weld forming groove for performing reference centering of the steel strip.

[0011] As a preferred automated welding equipment of the present invention, the centering mechanism includes a linear drive mechanism installed at the bottom of the positioning platform, and the movable end of the linear drive mechanism penetrates into the weld forming groove and is connected to the abutment to drive the abutment to extend vertically into or out of the weld forming groove.

[0012] As a preferred automated welding equipment of the present invention, the barrel includes a hollow cylinder connected to the top and the bottom, a slope is provided on the side of the top of the cylinder close to the positioning portion, and a guide surface is provided on the opposite side of the slope for guiding the arc-starting and closing plate to abut against the side of the steel strip.

[0013] As a preferred automated welding equipment of the present invention, the ejection assembly includes an ejection mechanism and a driving mechanism connected to the bottom of the ejection mechanism for driving the ejection mechanism to move. When the driving mechanism is running, the ejection mechanism moves along the axial direction of the cylinder.

[0014] As a preferred embodiment of the automated welding equipment of the present invention, the ejection mechanism includes an ejection block adapted to the interior of the cylinder, and a connecting piece vertically connected to the bottom of the ejection block;

[0015] The driving mechanism includes a driving member with a movable end that performs circular motion, and a transmission member connected between the driving member and the connecting member. The transmission member and the connecting member are threadedly connected, and the driving member is used to drive the transmission member to perform circular motion along its axial direction.

[0016] As a preferred embodiment of the automated welding equipment of the present invention, the driving disc is axially fixed on the transmission member, and a guide track is provided on the circumference of the driving disc;

[0017] The linkage rod includes a connecting rod located on one side of the driving disk, and a slider connected to the end of the connecting rod and radially extending into the guide rail. The pressure plate is connected to the connecting rod and is located above the positioning portion. When the driving disk rotates, the connecting rod reciprocates in the axial direction through the cooperation of the slider and the guide rail to tighten the steel belt or release the pressure on the steel belt.

[0018] As a preferred embodiment of the present invention, an automated welding equipment further includes a feeding assembly symmetrically connected to the limiting member 1, and the feeding assembly is respectively located at both ends of the positioning portion, and includes a feeding roller and a driven roller arranged in parallel up and down and rotatably connected to the limiting member 1, and a driving member 2 connected to the back side of the limiting member 1 for driving the feeding roller to rotate.

[0019] As a preferred embodiment of the automated welding equipment of the present invention, the driven roller is elastically connected to the front face of the first limiting member;

[0020] A movable groove is provided on the front of the limiting member 1, and a movable sleeve adapted to the movable groove is slidably connected to the inside of the movable groove. The driven roller is rotatably connected to the movable sleeve, and an elastic element is connected between the top of the movable sleeve and the movable groove, so that the driven roller can approach or move away from the feeding roller under the action of external force.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention realizes automatic centering of the two steel strip ends and automatic loading of the arc striking and closing plates when welding the steel strips through the mutual cooperation among the automatic welding machine, the pre-positioning component, the automatic feeding component of the arc striking and closing plates and the secondary positioning component that follows the automatic feeding component of the arc striking and closing plates. At the same time, during the automatic loading process of the arc striking and closing plates, the steel strip ends are pressed and positioned by the secondary positioning component driven therefrom, thereby improving the quality and efficiency of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0026] Figure 3 It is a rear perspective structural schematic diagram of the present invention.

[0027] Figure 4 This is a schematic structural diagram of the steel strip feeding process of the present invention.

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the workbench of the present invention.

[0029] Figure 6 It is a schematic diagram of the side cross-sectional structure of the workbench of the present invention.

[0030] Figure 7 It is a schematic structural diagram of the positioning part of the present invention.

[0031] Figure 8 This is a schematic structural diagram of the automatic loading assembly for the arc striking and closing plates of the present invention.

[0032] Figure 9 It is a structural schematic diagram of the filling process of the automatic loading assembly of the arc starting and ending plates of the present invention.

[0033] Figure 10 It is a schematic diagram of the connection structure between the driving mechanism 1 and the secondary positioning assembly of the present invention.

[0034] Figure 11 It is a structural schematic diagram of the secondary positioning component of the present invention.

[0035] Figure 12 It is a schematic diagram of the side cross-sectional structure of the feeding assembly of the present invention.

[0036] Figure 13 This is a schematic diagram of the top view of the structure after the steel strip and the arc starting and ending plates are loaded.

[0037] In the figure: 1. Automatic welding machine; 11. Workbench; 12. Automatic welding mechanism; 2. Pre-positioning assembly; 21. Positioning portion; 211. Positioning platform; 2111. Welding seam forming groove; 212. Centering mechanism; 2121. Linear drive mechanism; 2122. Abutment member; 22. Limiting member 1; 23. Limiting member 2; 3. Automatic feeding assembly for arc starting and ending plates; 31. Cylinder; 311. Cylinder body; 3111. Inclined surface; 3112. Guide surface; 32. Ejection mechanism; 32 1. Top block; 322. Connecting part; 33. Driving mechanism 1; 331. Driving part 1; 332. Transmission part; 4. Secondary positioning assembly; 41. Driving disk; 411. Guide rail; 42. Linkage rod; 421. Connecting rod; 422. Slider; 43. Press plate; 5. Feeding assembly; 51. Driving part 2; 52. Feeding roller; 53. Driven roller; 54. Anti-slip sleeve; 55. Movable groove; 56. Movable sleeve; 57. Elastic element; 6. Steel belt; 7. Arc starting and ending plate. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1

[0040] The present invention relates to an automatic welding device, which can realize the automatic feeding of the lead-in and lead-out arc plates 7 during the welding of the steel strip 6, so that the lead-in and lead-out arc plates 7 are respectively fed to both ends of the weld seam, thereby solving problems such as insufficient penetration and shrinkage holes caused by unstable arcs during the starting and ending welding processes. As Figure 1-Figure 5 shown, it includes an automatic welding machine 1, a pre-positioning component 2 and an automatic feeding component 3 for the lead-in and lead-out arc plates.

[0041] Specifically, the automatic welding machine 1 includes a workbench 11 and an automatic welding mechanism 12 for automatically welding workpieces. The automatic welding mechanism 12 is a common automatic welding device that can move in three-dimensional directions, such as an industrial robotic arm, a gantry welding machine, etc. It can be set through a program to achieve moving welding in the required direction. Details are not elaborated here.

[0042] Specifically, the pre-positioning component 2 is installed on the surface of the workbench 11 at a positioning portion 21 for centering and placing the steel strip 6, and a second limiting member 23 and a first limiting member 22 that are respectively connected to the front and rear sides of the positioning portion 21 to limit the movement of the steel strip 6. In this embodiment, the second limiting member 23 and the first limiting member 22 respectively form barriers on the front and rear sides of the positioning portion 21, and cooperate with the positioning portion 21 to form a "U"-shaped placement channel for the steel strip 6. After the steel strip 6 is placed on the top surface of the positioning portion 21, it forms guiding and limiting on both sides of the steel strip 6, preventing the steel strip 6 from shifting, so that while the steel strip 6 is stably fed, it is also convenient for subsequent alignment of the reference of the steel strip 6 and accurate positioning welding.

[0043] Furthermore, as Figure 7As shown, the positioning portion 21 includes a positioning platform 211, a weld forming groove 2111 obliquely opened on the top surface of the positioning platform 211, and a centering mechanism 212 movably arranged in the weld forming groove 2111 for performing reference centering on the steel strip 6. The centering mechanism 212 includes a linear drive mechanism 2121 installed at the bottom of the positioning platform 211. The movable end of the linear drive mechanism 2121 penetrates into the weld forming groove 2111 and is connected to the abutment 2122 to drive the abutment 2122 to vertically extend into or out of the weld forming groove 2111. In this embodiment, the linear drive mechanism 2121 is a cylinder, and the steel strips 6 enter from both ends of the positioning platform 211. During the continuous feeding and movement process, the ends of the two sets of steel strips 6 to be welded gradually approach each other and eventually fit on both sides of the abutment 2122. By starting the linear drive mechanism 2121, the movable end of the linear drive mechanism 2121 is contracted, thereby driving the abutment 2122 to contract into the weld forming groove 2111, and finally simultaneously pushing the two sets of steel strips 6 so that their welds are located at the weld forming groove 2111, achieving reference centering. It should be noted that the abutment 2122 should be made of a smooth material and be as thin as possible while ensuring its rigidity, so as to reduce the movement of the steel strips 6 caused by its expansion and contraction, thereby ensuring the accuracy of the centering of the two sets of steel strips 6.

[0044] Specifically, the arc-starting and closing plate automatic loading assembly 3 includes two groups of barrels 31 that are attached to the front and rear sides of the positioning portion 21 for loading the arc-starting and closing plates 7, and an ejection assembly arranged at the bottom of the barrel 31 for automatically ejecting the arc-starting and closing plates 7. In this embodiment, in order to ensure the connection between the two groups of barrels 31, the surfaces of the limiting member 2 23 and the limiting member 1 22 at the ends of the weld seam of the steel strip 6 are cut off to form a space that can accommodate the barrels 31. At this time, the two groups of barrels 31 are respectively located at the two end positions of the weld seam of the steel strip 6. When the steel strip 6 is centered, the arc-starting and closing plates 7 loaded in the barrel 31 can be pushed out to the two end positions of the weld seam of the steel strip 6 through the operation of the ejection assembly. Figure 13 When the automatic welding mechanism 12 is welding, welding is started by any one arc striking and closing plate 7 at both ends of the weld of the steel strip 6, and then the welding is finished by the other arc striking and closing plate 7, so as to ensure the welding quality and reduce the problems of insufficient penetration and shrinkage cavity welding quality.

[0045] Further, such as Figure 8-Figure 9As shown, the barrel 31 includes a hollow square cylinder 311 connected to the top and bottom, and a slope 3111 is provided on the side of the top of the cylinder 311 near the positioning platform 211, and a guide surface 3112 is provided on the opposite side of the slope 3111 for guiding the arc-initiating plate 7 to abut the side of the steel strip 6. In this embodiment, the lowest end of the slope 3111 is located on the inner side of the cylinder 311, and the guide surface 3112 is arranged parallel to the slope 3111. When the ejection assembly is running, under the cooperation of the guide surface 3112 and the slope 3111, an edge of the top surface of the arc-initiating plate 7 in the cylinder 311 will abut against the guide surface 3112, and finally the edge will gradually slide along the guide surface 3112, so that the side of the arc-initiating plate 7 away from the guide surface 3112 abuts against the side of the steel strip 6, forming a shape as shown in FIG. Figure 13 It should be noted that, in order to ensure that the arc-inducing and retracting plate 7 is ejected more smoothly, the guide surface 3112 and the inclined surface 3111 should be made of smooth materials. At the same time, a chamfered surface adapted to the guide surface 3112 can be provided at the abutting edge between the arc-inducing and retracting plate 7 and the guide surface 3112.

[0046] Further, such as Figure 9-10 As shown, the ejection assembly includes an ejection mechanism 32 and a driving mechanism 33 connected to the bottom of the ejection mechanism 32 for driving the ejection mechanism 32 to move. The ejection mechanism 32 includes a top block 321 adapted to the interior of the cylinder 311, and a connecting member 322 vertically connected to the bottom of the top block 321. In this embodiment, the driving mechanism 33 includes a driving member 331 whose movable end performs circular motion, and a transmission member 332 connected between the driving member 331 and the connecting member 322. The transmission member 332 and the connecting member 322 are threadedly connected, and the driving member 331 is used to drive the transmission member 332 to perform circular motion along its axial direction. Take the driving member 331 as a motor and the transmission member 332 as a screw as an example: the connecting member 322 is fixedly connected to the movable end of the driving member 331 through a coupling. When the driving member 331 is running, its movable end drives the transmission member 332 to rotate. Through the threaded connection between the transmission member 332 and the connecting member 322, the connecting member 322 moves along the axial direction of the transmission member 332, thereby driving the top block 321 to move inside the cylinder 311, so as to push out the arc-receiving plate 7. It should be noted that in order to ensure the accuracy of pushing out the arc-receiving plate 7, it is necessary to set the rotation angle of the driving member 331 according to the thread diameter between the transmission member 332 and the connecting member 322. For example, when the transmission member 332 rotates to a certain angle, the distance that the connecting member 322 can be driven to move axially is equal to the thickness of the arc-receiving plate 7, so that the rotation angle of the driving member 331 can be set in a direction to ensure the accurate pushing out of the arc-receiving plate 7.

[0047] During use, the two groups of steel strips 6 to be welded are respectively fed in from the two ends of the positioning platform 211. Under the restriction and guidance of the limiter 23 and the limiter 1 22, the ends of the two groups of steel strips 6 will accurately abut against the two sides of the abutment 2122. Then the abutment 2122 is retracted to make the ends of the two groups of steel strips 6 abut against the opening of the weld forming groove 2111. Then the driving member 1 331 is controlled to rotate to the set angle, so that the arc-initiating and closing plate 7 on the top block 321 is pushed to the two ends of the weld where the steel strips 6 abut. Finally, by starting the operation of the automatic welding mechanism 12, the welding gun starts welding from any one arc-initiating and closing plate 7 and stops welding on the other arc-initiating and closing plate 7, thereby completing the entire high-quality welding operation.

[0048] Example 2

[0049] Reference Figure 5 、 Figure 6 、 Figure 11-12 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a secondary positioning component 4 for longitudinally fixing the welded ends of the steel strips 6, thereby solving the problem of warping when the ends of two groups of steel strips 6 are in contact due to the toughness of the steel strips 6 themselves.

[0050] Specifically, the secondary positioning assembly 4 includes a driving disk 41 connected to the ejection assembly and moving with the ejection assembly, a linkage rod 42 connected to the circumference of the driving disk 41, and a pressure plate 43 connected to the linkage rod 42. When the driving disk 41 moves, the linkage rod 42 drives the pressure plate 43 to reciprocate.

[0051] Furthermore, the drive disc 41 is axially fixed to the transmission member 332, and a guide track 411 is defined around the circumference of the drive disc 41. The linkage rod 42 includes a connecting rod 421 located on one side of the drive disc 41, and a slider 422 connected to the end of the connecting rod 421 and radially extending into the guide track 411. The pressure plate 43 is connected to the connecting rod 421 and positioned above the positioning platform 211. In this embodiment, the following detailed description is provided, using the example where one rotation of the drive member 331 causes the connecting member 322 to axially move a distance equal to the thickness of the arc-starting and closing plate 7 (equal to the thickness of the steel strip 6).

[0052] Specifically, the guide rail 411 is an inclined elliptical structure. When the slider 422 is at the lowest point in the guide rail 411, the vertical distance between the bottom surface of the pressure plate 43 and the top surface of the positioning platform 211 is equal to the thickness of the steel strip 6. Therefore, when the driving member 331 rotates one circle, the arc-leading plate 7 can be accurately pushed out to the two ends of the abutment (weld) of the steel strip 6. At the same time, during this process, under the action of the guide rail 411, the connecting rod 421 will gradually rise first, so that the vertical distance between the bottom surface of the pressure plate 43 and the top surface of the positioning platform 211 is greater than the thickness of the steel strip 6. degree, so as not to affect the feeding of the steel strip 6. When the connecting rod 421 rises to the highest point, it will gradually descend in response to the inclined setting of the guide rail 411. Finally, when the arc-initiating and closing plate 7 is accurately pushed out to the two ends of the abutment (weld) of the steel strip 6, the bottom surface of the pressing plate 43 just presses the top surface of the steel strip 6. Based on the above scheme, the pressing plate 43 can automatically perform coordinated reciprocating motion up and down during the continuous pushing process of each arc-initiating and closing plate 7, thereby limiting the longitudinal movement of the steel strip 6 when the steel strip 6 is welded, preventing it from warping and affecting the welding accuracy.

[0053] It should be noted that, in addition to being set as the above-mentioned inclined elliptical structure, the guide rail 411 can also be set as a continuous wave-shaped structure that cooperates with the rotation angle set by the driving member 331. It only needs to meet the requirement that when the driving member 331 is rotated to the set angle, the slider 422 moves from one trough to another adjacent trough to realize its reciprocating motion and realize the longitudinal restriction of the end of the steel belt 6 at the trough.

[0054] Example 3

[0055] Reference Figure 5 、 Figure 6 and Figure 12 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a feeding assembly 5 symmetrically connected to a limit member 22, which is used to automatically feed two groups of steel strips 6 synchronously, thereby improving the centering accuracy of the steel strips 6.

[0056] Specifically, the feed assembly 5 includes a feed roller 52 and a driven roller 53, which are arranged in parallel and rotationally connected to the limiter 22, and a second driving member 51 connected to the back of the limiter 22 for driving the feed roller 52 to rotate. During use, the steel strip 6 can be fed between the feed roller 52 and the driven roller 53. The second driving member 51 drives the feed roller 52 to rotate, so that the steel strip 6 is automatically fed from both ends of the positioning platform 211 to abut against the abutment member 2122. After abutment, the feed rollers 52 of the two sets of feed assemblies 5 rotate synchronously, achieving precise alignment of the two sets of steel strips 6 at the center of the weld forming groove 2111, thereby improving welding accuracy.

[0057] Furthermore, the driven roller 53 is elastically connected to the front face of the stopper 22. A movable slot 55 is defined on the front face of the stopper 22. A matching movable sleeve 56 is slidably connected within the movable slot 55. The driven roller 53 is rotatably connected to the movable sleeve 56. An elastic element 57 is connected between the top of the movable sleeve 56 and the movable slot 55. This allows the driven roller 53 to move closer to or further away from the feed roller 52 under the action of an external force. Specifically, in a natural state, the driven roller 53 and the feed roller 52 are in contact with each other. When subjected to force, the driven roller 53 can move away from the feed roller 52. This allows for welding of steel strips 6 of varying thicknesses, improving applicability.

[0058] Furthermore, an anti-slip sleeve 54 made of elastic material, such as rubber, can be provided around the driven roller 53 and the feeding roller 52 to increase the friction between the driven roller 53 and the feeding roller 52 to reduce the slippage during the initial feeding.

[0059] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automated welding equipment, characterized in that: include: An automatic welding machine (1) comprising a workbench (11) and an automatic welding mechanism (12) for automatically welding a workpiece; A pre-positioning assembly (2) comprising a positioning portion (21) mounted on the workbench (11) for centering the steel strip (6), and a second limiting member (23) and a first limiting member (22) respectively connected to the front and rear sides of the positioning portion (21) for limiting the movement of the steel strip (6); An automatic arc-entering plate loading assembly (3) comprises two groups of barrels (31) connected to the front and rear sides of the positioning portion (21) for loading the arc-entering plate (7), and an ejection assembly arranged at the bottom of the barrel (31) for automatically ejecting the arc-entering plate (7), the barrel (31) comprising a hollow cylinder (311) connected at the top and the bottom, the ejection assembly comprising an ejection mechanism (32) and a driving mechanism (33) connected to the bottom of the ejection mechanism (32) for driving the ejection mechanism (32) to move, the ejection mechanism (32) comprising an ejection block (321) adapted to the interior of the cylinder (311), and a connecting piece (322) vertically connected to the bottom of the ejection block (321); The driving mechanism (33) includes a driving member (331) whose movable end performs circular motion, and a transmission member (332) connected between the driving member (331) and the connecting member (322); It also includes a secondary positioning assembly (4), which includes a driving disk (41) connected to the ejection assembly and moving with the ejection assembly, a linkage rod (42) connected to the peripheral side of the driving disk (41), and a pressure plate (43) connected to the linkage rod (42), when the driving disk (41) moves, the linkage rod (42) drives the pressure plate (43) to reciprocate, the driving disk (41) is axially fixed on the transmission member (332), and a guide track (411) is provided on the peripheral side of the driving disk (41); The linkage rod (42) includes a connecting rod (421) located on one side of the driving disc (41), and a slider (422) connected to the end of the connecting rod (421) and radially extending into the guide track (411). The pressure plate (43) is connected to the connecting rod (421) and is located above the positioning portion (21). When the driving disc (41) rotates, the connecting rod (421) performs reciprocating motion in the axial direction through the cooperation of the slider (422) and the guide track (411) to press the steel belt (6) or release the pressure on the steel belt (6).

2. The automated welding equipment according to claim 1, characterized in that: The positioning portion (21) comprises a positioning platform (211), a weld forming groove (2111) obliquely provided on the top surface of the positioning platform (211), and a centering mechanism (212) movably arranged in the weld forming groove (2111) for performing reference centering on the steel strip (6).

3. The automated welding equipment according to claim 2, characterized in that: The centering mechanism (212) includes a linear drive mechanism (2121) installed at the bottom of the positioning platform (211), and the movable end of the linear drive mechanism (2121) penetrates into the weld forming groove (2111) and is connected to the abutment member (2122) to drive the abutment member (2122) to vertically extend into or out of the weld forming groove (2111).

4. The automated welding equipment according to claim 1, characterized in that: A slope (3111) is provided on the side of the top of the cylinder (311) close to the positioning portion (21), and a guide surface (3112) for guiding the arc-starting and arc-receiving plate (7) to abut against the side of the steel strip (6) is provided on the opposite side of the slope (3111).

5. The automated welding equipment according to claim 4, characterized in that: When the driving mechanism 1 (33) is in operation, the ejection mechanism (32) moves along the axial direction of the cylinder (311).

6. The automated welding equipment according to claim 5, characterized in that: The transmission member (332) and the connecting member (322) are threadedly connected, and the driving member (331) is used to drive the transmission member (332) to perform circular motion along its axial direction.

7. The automated welding equipment according to claim 1, characterized in that: The invention also includes a feeding assembly (5) symmetrically connected to the limiting member 1 (22), and the feeding assembly (5) is respectively located at both ends of the positioning portion (21), and includes a feeding roller (52) and a driven roller (53) arranged in parallel up and down and rotatably connected to the limiting member 1 (22), and a driving member 2 (51) connected to the back of the limiting member 1 (22) for driving the feeding roller (52) to rotate.

8. The automated welding equipment according to claim 7, characterized in that: The driven roller (53) is elastically connected to the front surface of the limiting member 1 (22); A movable groove (55) is provided on the front of the limiting member 1 (22), and a movable sleeve (56) adapted thereto is slidably connected inside the movable groove (55), and the driven roller (53) is rotatably connected to the movable sleeve (56), and an elastic element (57) is connected between the top of the movable sleeve (56) and the movable groove (55), so that the driven roller (53) can approach or move away from the feeding roller (52) under the action of an external force.

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