Skirt plate rolling welding equipment

Abstract

The present invention relates to a skirt plate rolling welding device, comprising: a frame provided with a welding positioning seat; a rolling mechanism for driving and conveying the skirt plate blank forward, and guiding the front end of the skirt plate blank to bend backward and upward to form an annular skirt plate; a lifting rod driven by a lifting drive mechanism and capable of moving up and down, wherein the lifting rod can move the rolled and bent annular skirt plate upward so that its rear end moves upward and is inserted between the bottom of the welding positioning seat and the welding platform; a front limiter for abutting the front side of the annular skirt plate and a rear limiter for abutting the rear side of the annular skirt plate, both of which can be constrained on the frame in an adjustable manner in the front-to-back direction relative to the frame, thereby changing the distance between the front limiter and the rear limiter. The spacing between the front limiter and the rear limiter can be adjusted accordingly according to the different specifications of the skirt plates, thereby meeting the requirements for the rolling welding processing of the skirt plates of different specifications.

Description

Technical Field

[0001] The invention relates to the technical field of pipe pile skirt processing, in particular to skirt curling welding equipment. Background Art

[0002] Prestressed concrete precast piles (pipe piles) are a kind of concrete products, which are widely used in industrial and civil construction, roads, railways, water conservancy, port terminals and other fields. In order to facilitate the connection of prestressed concrete precast piles, end plates need to be installed at both ends of the precast concrete piles. Before making prestressed concrete precast piles, the end plates need to be riveted or welded to the strip steel (skirt plate). The processing process of pipe piles (joints) generally includes the strip steel unloading step, the cutting step, the rolling step, the skirt plate welding step, the end plate loading step and the pressure riveting arrangement of the end plate and the skirt plate. However, the traditional pipe pile (joint) production has problems such as long processing cycle, low efficiency, many production personnel, high production cost, insufficient labor force, and increasing labor cost.

[0003] To this end, the Chinese invention patent application with application number CN202011480275.1 (publication number CN112518349A) discloses an automated production line for pipe pile end plate riveting processing, including: a skirt plate blank discharge device; a leveling device for leveling the skirt plate blank conveyed to the leveling workbench; a cutting device, located on the front side of the straightening roller assembly of the leveling device, for cutting the skirt plate blank; a curling welding device, located on the front side of the cutting device, and connected to the cutting device by a transmission The conveyor belts are connected, and are used to roll and bend the skirt plate blanks and weld them together to form an annular skirt plate; the rib pressing device is arranged on the front side of the rolling and welding device, and is connected to the rolling and welding device through the first roller rack, and is used to rib the annular skirt plate rolled along the first roller rack; the end plate feeding device; the riveting device is arranged on the front side of the rib pressing device and the end plate feeding device, and is connected to the rib pressing device through the second roller rack, and is connected to the discharge port of the end plate feeding device, and is used to press the annular skirt plate and the end plate together. Among them, the rolling welding device includes a welding frame, a rolling mechanism, a welding device, and a lifting and adjusting device. The rolling mechanism is arranged on the welding frame, including a feed roller assembly for clamping the skirt blank and conveying the skirt blank forward, and a rolling roller located on the front side of the feed roller assembly for guiding the front end of the skirt blank to bend upward to form an annular skirt. The welding device is used to weld the head and tail ends of the annular skirt completed by the rolling mechanism together. The welding device includes a welding platform, a welding positioning seat, a lifting rod assembly, a skirt positioning assembly and a welding head assembly. After the rolling operation is completed, the lifting rod of the lifting rod assembly rises to lift the rolled skirt upward, so that the head and tail ends of the skirt are limited on both sides of the strip spacer ribs of the welding positioning seat. Then, the push plate of the skirt positioning assembly can slide horizontally to push the skirt toward the positioning baffle and press it against the positioning baffle. Finally, the welding head of the welding head assembly can move along the length direction of the welding positioning seat to weld the head and tail ends of the annular skirt after positioning.

[0004] The skirt plate rolling welding process in the above patent still has certain deficiencies. First, in the rolling welding operation, the need for rolling welding of skirt plates of different specifications (different sizes) is not taken into account. When it is necessary to roll and weld skirt plates of different specifications, the corresponding rolling mechanism must be replaced as a whole to meet the needs of the different skirt plates in the rolling and bending operation. Therefore, the skirt rolling mechanism cannot meet the needs of the rolling welding processing of skirt plates of different specifications and has poor adaptability. Secondly, the rolling processing position and the welding processing position of the skirt plate are not in the same position. It requires the push plate of the skirt plate positioning assembly to push the skirt plate horizontally to transfer the skirt plate between the rolling processing station and the welding processing station. This undoubtedly adds an additional skirt plate positioning and transfer process to the entire production line, reducing production efficiency. In particular, the skirt plates are rolled and welded in different areas, which also increases the size of the entire skirt plate rolling welding equipment and increases the space occupied by the equipment.

[0005] Therefore, the existing skirt plate curling welding equipment needs to be further improved. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide a skirt plate curling welding device that meets the curling welding processing requirements of skirt plates of different specifications in view of the current status of the existing technology.

[0007] The second technical problem to be solved by the present invention is to provide a skirt plate rolling and welding equipment that can perform rolling processing and welding processing operations at the same workstation, thereby effectively improving production efficiency, in view of the current status of the existing technology.

[0008] The third technical problem to be solved by the present invention is to provide a skirt plate rolling welding device that can effectively reduce the volume of the entire device and thus reduce the space occupied, in view of the current status of the existing technology.

[0009] The technical solution adopted by the present invention to solve the first technical problem is: a skirt plate rolling welding device, comprising:

[0010] A frame having a welding platform, wherein a welding positioning seat is provided on the welding platform;

[0011] A curling mechanism is provided on the frame, and is used to drive the skirt blank and convey it forward, and guide the front end of the skirt blank to bend backward and upward to form an annular skirt;

[0012] The lifting rod is driven by the lifting drive mechanism to move up and down. When the lifting rod moves upward, it can lift the annular skirt after being rolled and bent so that its rear end moves upward and is inserted between the bottom of the welding positioning seat and the welding platform.

[0013] Used to limit the annular skirt plate after rolling and bending at the front and rear sides, the skirt plate limiting mechanism includes a front limiting member for abutting against the front side of the annular skirt plate and a rear limiting member for abutting against the rear side of the annular skirt plate. The front limiting member and the rear limiting member can be constrained on the frame in a manner that the position can be adjusted in the front and rear directions relative to the frame, thereby changing the distance between the front limiting member and the rear limiting member.

[0014] To ensure the front stopper is compatible with skirts of varying sizes, the frame is further provided with a stop bracket having at least two connection points spaced apart in the front-to-back direction. The front stopper is a transversely arranged stop lever, one end of which is connected to the connection point of the stop bracket. When processing skirts of varying sizes, the operator can simply connect the stop lever to the different connection points.

[0015] Since skirt workpieces of different specifications have different heights after being rolled and bent, in order to better match skirts of different specifications and achieve secure limiting of skirts of different specifications, the limiting bracket has a connecting arm that tilts from back to front and upward, and each connecting position is arranged in sequence along the length direction of the connecting arm.

[0016] To facilitate unloading of the annular skirt after processing, the limit bracket is rotatably connected to the frame. The limit bracket is driven by a flip drive member to cause the limit lever to deflect along with the limit bracket, so that the limit lever has a first state in which it is shifted to the front side of the annular skirt and abuts against the annular skirt, and a second state in which it is shifted out of the front area of ​​the annular skirt to allow the annular skirt to roll forward after welding. The limit lever switches between the first and second states by flipping, simplifying the overall structure of the coil welding equipment, making the overall volume of the coil welding equipment more compact, occupying less space, and avoiding interference between the limit lever and other components.

[0017] In order to make the rear limit member adapt to skirts of different specifications, the rear limit member is a vertically arranged limit baffle, which is constrained on the frame for sliding back and forth. A locking mechanism is also provided between the limit baffle and the frame for locking the limit baffle in a set position.

[0018] In order to achieve a secure lock between the limit baffle and the frame, a positioning rod that can swing up and down is hinged on the back of the limit baffle, and the positioning rod has at least two positioning notches arranged at intervals along its length. The frame has a positioning column that matches each of the positioning notches. The limit baffle also has a tension spring, one end of which is connected to the positioning rod, and makes the positioning rod always have a tendency to swing downward. The positioning rod, the positioning column and the tension spring together constitute the locking mechanism. The design of the above-mentioned locking mechanism also facilitates the operator to make corresponding adjustments for skirts of different specifications. For example, when a large-sized skirt workpiece needs to be rolled and welded, the operator can lift the positioning rod to disengage the positioning notch from the positioning column on the frame, and then move the limit baffle backward. After moving into position, the positioning rod automatically swings down under the elastic force of the tension spring, and the positioning notch at the corresponding position on it is engaged with the positioning column, and will not fall out easily.

[0019] In order to realize automatic unloading of the annular skirt after the welding process is completed, it also includes a pushing mechanism arranged on the limit baffle, and the pushing mechanism includes a pushing plate and a pushing driving member. The pushing plate is arranged on the front of the limit baffle, and the pushing driving member is arranged on the back of the limit baffle. The power output end of the pushing driving member passes through the limit baffle and is connected to the pushing plate, and can drive the pushing plate to move back and forth, thereby acting on the annular skirt after welding is completed, so that the annular skirt rolls forward and leaves the welding platform.

[0020] The technical solution adopted by the present invention to solve any one of the above-mentioned second technical problems and third technical problems is: it also includes a skirt plate alignment and pressing device, the skirt plate alignment and pressing device includes a lifting plate assembly and a skirt plate vibration pressing mechanism, the lifting plate assembly includes a first lifting cylinder and a lifting plate, the lifting plate is arranged in the welding positioning seat, and is connected to the power action end of the first lifting cylinder, and can move up and down relative to the welding positioning seat, the lower side edge of the lifting plate can move downward to expose the bottom wall of the welding positioning seat and separate the front and rear ends of the annular skirt plate, and can move upward to release the spacing state of the front and rear ends of the annular skirt plate to allow the front and rear ends of the annular skirt plate to move toward each other and align, the skirt plate vibration pressing mechanism includes a second lifting cylinder and a vibrator, the vibrator is connected to the power output end of the second lifting cylinder, and can move downward under the drive of the second lifting cylinder, thereby acting on the top of the annular skirt plate.

[0021] The aforementioned skirt plate alignment and clamping device allows the skirt plate blank to be rolled and welded at the same station. After the rolling process is completed, the skirt plate alignment and clamping device can be used to align the front and rear ends of the annular skirt plate, adjusted by the lifting drive mechanism, in their original positions and clamped onto the welding platform. The front and rear ends of the annular skirt plate are then welded together using a welding device that moves with the welding positioning seat. Since the rolling and welding operations are performed at the same station, the need to transfer the skirt plate between the rolling and welding stations, as in the prior art, is eliminated, effectively improving production efficiency. Furthermore, concentrating the rolling and welding processes of the skirt plate blank at the same location can effectively reduce the overall size of the equipment and reduce the space occupied.

[0022] During the rolling and bending process, the lower end of the lifting plate can move downward to expose the bottom wall of the welding positioning seat to form a spacer. As a result, during the rolling and bending process, the front end of the skirt blank can be positioned against the above-mentioned spacer to avoid the skirt blank from detaching during the rolling process. After the lifting rod adjusts the rear end of the annular skirt after rolling and bending into place, the lifting plate can move upward again to release the spacing between the front and rear ends of the annular skirt, allowing the front and rear ends of the annular skirt to move toward each other and align, so that the welding device can perform welding operations in situ. Driven by the second lifting cylinder, the vibrator can move downward and press against the top of the annular skirt. In the downward pressure state, the vibration operation of the vibrator can effectively align the front and rear sides of the skirt, thereby ensuring the welding effect here.

[0023] In order to match the processing process of curling welding in the original position, the lifting rod can also be driven by the lifting drive mechanism to extend into the annular skirt plate and move out from the annular skirt plate.

[0024] In order to lift the rear end of the skirt blank upwards during the rolling process of the skirt blank, and to adapt to skirts of different specifications, the following are also included:

[0025] a support frame, provided on the frame and disposed adjacent to the end of the annular skirt, the lifting drive mechanism being provided on the support frame;

[0026] A sliding frame is constrained to slide up and down on the support frame and is connected to the power output end of the lifting drive mechanism;

[0027] A transverse driving mechanism is provided on the sliding frame. The transverse driving mechanism has a power output end that can move linearly in the left and right directions. The lifting rod is connected to the power output end of the transverse driving mechanism and can be shifted into the annular skirt and moved out from the inside of the annular skirt under the drive of the transverse driving mechanism.

[0028] The design of the above-mentioned transverse driving mechanism enables the lifting rod to be automatically moved out from the inside of the annular skirt plate in a timely manner, which facilitates the unloading of the finished skirt plate after welding.

[0029] Compared with the existing technology, the advantages of this invention are: the front and rear stoppers of the skirt plate limit mechanism can respectively abut against the front and rear sides of the annular skirt plate, thereby enabling the skirt plate blank to be rolled and bent more effectively. Furthermore, the spacing between the front and rear stoppers can be adjusted to suit the different specifications of the skirt plate, meeting the requirements for the rolling and welding of skirt plates of different specifications. Furthermore, the skirt plate limit mechanism is easily adjustable, eliminating the need to completely replace the corresponding rolling mechanism as in the existing technology, effectively ensuring the production efficiency of the entire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0031] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure after omitting the annular skirt;

[0032] Figure 3 is a schematic diagram of a three-dimensional structure from another angle of an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of a three-dimensional structure of a portion of an embodiment of the present invention (showing structures such as a welding device, a welding positioning seat, and a welding platform);

[0034] Figure 5 for Figure 4 Side view of;

[0035] Figure 6 for Figure 1 Schematic diagram of the three-dimensional structure without the welding device (the lifting rod is in the low position);

[0036] Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure without the welding device (the lifting rod is in a high position and does not extend into the annular skirt);

[0037] Figure 8 for Figure 7 (wherein the lever is in a high position and extends into the annular skirt);

[0038] Figure 9 Schematic diagram of the three-dimensional structure of an embodiment of the present invention (the annular skirt is in the blanking state);

[0039] Figure 10 for Figure 9 Front view of

[0040] Figure 11 A schematic diagram of the three-dimensional structure of an embodiment of the present invention (showing an annular skirt plate of another specification (small size));

[0041] Figure 12 for Figure 5 Cross-sectional view at AA in the middle;

[0042] Figure 13 This is a schematic diagram of the three-dimensional structure of an embodiment of the present invention with some components omitted;

[0043] Figure 14 is a schematic diagram of the three-dimensional structure of a vibrating member according to an embodiment of the present invention;

[0044] Figure 15 for Figure 14 3D exploded view of . DETAILED DESCRIPTION

[0045] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0047] See also Figures 1-15 A skirt plate rolling and welding device can be used to receive the skirt plate blanks cut by the upstream skirt plate cutting device, and roll and bend the skirt plate blanks and weld them together to form an annular skirt plate 100, specifically including a frame 1, a welding platform 11, a welding positioning seat 12, a rolling mechanism 2, a lifting assembly, a skirt plate limiting mechanism, a skirt plate alignment and clamping device and a welding device 9.

[0048] Figure 1 A schematic diagram of the three-dimensional structure of the skirt plate rolling welding equipment of this embodiment is shown. The frame 1 is square as a whole, and the above-mentioned welding platform 11, welding positioning seat 12, rolling mechanism 2, lifting assembly, skirt plate alignment and pressing device and welding device 9 are all arranged on the frame 1.

[0049] The curling mechanism 2 is used to drive the skirt blank and convey it forward, and guide the front end of the skirt blank to bend upward to form an annular skirt 100. Figure 13 , Figure 13 for Figure 1 The schematic diagram of the three-dimensional structure after omitting some structures, wherein: Figure 7 The arrow indicates the direction of conveyance of the skirt material on the frame 1. As can be seen, the rear side of the frame 1 is equipped with a feed roller assembly 23, which grips the skirt material and provides the driving force for forward movement. The front side of the frame 1 is equipped with the aforementioned winding mechanism 2, which specifically comprises a guide roller assembly 21 and a winding roller 22. The guide roller assembly 21 is located directly in front of the feed roller assembly 23 and also serves to grip the skirt material and convey it forward. The guide roller assembly 21 comprises a first guide roller 211 and a second guide roller 212, which are arranged side by side and spaced apart. The winding roller 22 is located in front of the guide roller assembly 21, specifically slightly higher than (and below) the first guide roller 211. The combination of the guide roller assembly 21 and the winding roller 22 guides the front end of the skirt material to bend upward, forming the annular skirt 100. The feed roller assembly 23 and the guide roller assembly 21 can be driven to rotate by a second drive motor (not shown) through a sprocket chain assembly.

[0050] The curling roller 22 can be adjusted vertically by screws on either side of it, thereby changing the curling curvature. Similarly, the gap between the first guide roller 211 and the second guide roller 212 of the guide roller assembly 21 can also be adjusted by screws on either side of it, thereby adapting to plates of different thicknesses.

[0051] Figure 2 for Figure 1 The schematic diagram of the three-dimensional structure without the annular skirt panel 100 shows that the skirt panel limiting mechanism is provided on the frame 1 and includes a front limiting member and a rear limiting member. The front limiting member and the rear limiting member are respectively used to limit the front and rear positions of the annular skirt panel 100 after being rolled and bent by the rolling mechanism 2. The front limiting member abuts against the front side of the annular skirt panel 100, and the rear limiting member abuts against the rear side of the annular skirt panel 100. Specifically, at least one of the front limiting member and the rear limiting member is constrained to the frame 1 in a manner that allows for adjustment of the position in the front-to-back direction relative to the frame 1, thereby changing the distance between the front limiting member and the rear limiting member.

[0052] See also Figure 1The frame 1 is further provided with a blanking rack 17 on the front side corresponding to the annular skirt plate 100. The blanking rack 17 is tilted downward from the rear to the front. Pushed by a pusher plate 51 (described below), the welded annular skirt plate 100 rolls forward along the blanking rack and away from the welding platform 11, thereby achieving automatic blanking of the welded annular skirt plate 100.

[0053] Continue to see Figure 2 In order to limit the front side of the annular skirt plate 100 and make way for it in time (to facilitate unloading), the skirt plate limiting mechanism also includes a flip drive 33 and a limiting bracket 31. The limiting bracket 31 is rotatably connected to the frame 1. The power output end of the flip drive 33 is connected to the limiting bracket 31, thereby driving the limiting lever 32 to deflect, so that the limiting lever 32 has a first state of being displaced to the front side of the annular skirt plate 100 and abutting against the annular skirt plate 100, and a second state of being displaced from the front area of ​​the annular skirt plate 100, allowing the annular skirt plate 100 to roll forward after welding is completed.

[0054] Because skirt panels of varying sizes have varying heights after curling, to better match and securely limit the position of skirt panels of varying sizes, the position-limiting bracket 31 includes a connecting arm 310 that slopes upward from rear to front. The connecting arm 310 has multiple connecting points 3100 arranged along its length. In this embodiment, the front position-limiting member is a horizontally disposed (i.e., left-right) position-limiting lever 32. The connecting point 3100 on the connecting arm 310 serves as a mounting hole, allowing one end of the position-limiting lever 32 to be mounted on the corresponding connecting point 3100 of the position-limiting bracket 31. When it is necessary to process skirt panels of different specifications, the operator can directly connect the limit rod 32 to different connection positions 3100. For example, when it is necessary to process skirt panel blanks of relatively large size, the limit rod 32 can be installed on the corresponding front (relatively high) connection position 3100 of the limit bracket 31; when it is necessary to process skirt panel blanks of relatively small size, the limit rod 32 can be installed on the corresponding rear (relatively low) connection position 3100 of the limit bracket 31.

[0055] The aforementioned flip driver 33 can be implemented using various existing technologies, such as a pneumatic cylinder or an electric push rod. In this embodiment, the flip driver 33 is preferably a pneumatic cylinder, which is positioned substantially vertically and hinged at its bottom to the frame 1. The position-limiting lever 32 of this embodiment switches between the first and second positions using the aforementioned flipping method, simplifying the overall structure of the coil welding apparatus and making the apparatus more compact and space-saving. Interference between the position-limiting lever 32 and other components is also avoided.

[0056] Figure 3This is a schematic diagram of the three-dimensional structure of the skirt plate rolling welding equipment of this embodiment from another angle. It can be seen that the rear limit member of this embodiment is a limit baffle 41 arranged substantially vertically. The limit baffle 41 is located on the rear side of the annular skirt plate 100 (when placed in place), with its front facing the annular skirt plate 100. The limit baffle 41 of this embodiment is constrained to slide back and forth on the frame 1, wherein the frame 1 is further provided with two first slides 42 spaced apart in the left and right directions. Correspondingly, the back of the limit baffle 41 has a bracket extending obliquely downward, and the bottom of the bracket is connected to two first slide rails 43 extending in parallel. The two first slide rails 43 are slidably provided on the two first slides 42.

[0057] Continue to see Figure 3 A locking mechanism is also provided between the limit baffle 41 and the frame 1 for locking the limit baffle 41 in a set position. Specifically, a positioning rod 44 that can swing up and down is hingedly connected to the back of the limit baffle 41. The positioning rod 44 has at least two positioning notches 440 spaced apart along its length. A second bracket 45 is vertically placed on the frame 1 at the bottom corresponding to the above-mentioned positioning rod 44. The top of the second bracket 45 has a horizontally placed positioning column 46. The size of the positioning column 46 matches the size of the positioning notch 440 on the positioning rod 44. The limit baffle 41 also has a tension spring 47. One end of the tension spring 47 is connected to the positioning rod 44, and the other end is connected to the bracket. Under the elastic force of the tension spring 47, the positioning rod 44 always has a tendency to swing downward, thereby allowing the positioning notch 440 of the positioning rod 44 to remain in a securely locked state with the positioning column 46. The positioning rod 44 , the positioning column 46 and the tension spring 47 together constitute the locking mechanism of this embodiment.

[0058] The design of the above-mentioned locking mechanism also makes it convenient for operators to make corresponding adjustments for skirts of different specifications. For example, when a large-sized skirt workpiece needs to be rolled and welded, the operator can lift the positioning rod 44 to disengage the positioning recess 440 from the positioning column 46 on the frame 1, and then move the limit baffle 41 backward. After moving into position, under the elastic force of the tension spring 47, the positioning rod 44 automatically swings down, and the positioning recess 440 at the corresponding position on it is engaged with the positioning column 46, and will not fall out easily.

[0059] Continue to see Figure 3In order to achieve automatic unloading of the annular skirt 100 after the welding process is completed, the limit baffle 41 is further provided with a pushing mechanism, which includes a pushing plate 51 and a pushing drive 52. The pushing plate 51 of this embodiment is provided on the front of the limit baffle 41. In the initial state, the pushing plate 51 can be in contact with the front of the limit baffle 41. The pushing drive 52 is provided on the back of the limit baffle 41. The power output end of the pushing drive 52 passes through the limit baffle 41 and is connected to the pushing plate 51. It can drive the pushing plate 51 to move forward and backward, thereby acting on the annular skirt 100 after welding, causing the annular skirt 100 to roll forward and away from the welding platform 11.

[0060] The pusher drive 52 of this embodiment can be a pneumatic cylinder, an electric push rod, or any other conventional technology. The flipping drive 33 of this embodiment is preferably a pneumatic cylinder, which is positioned substantially horizontally. The stop plate 41 has a first through-hole 411 through which the telescopic rod of the pneumatic cylinder passes. Furthermore, to ensure the stability of the pusher plate 51 during its forward and backward movement, a first guide rod 53 is connected to the back of the pusher plate 51. This first guide rod 53 is parallel to the telescopic rod of the pneumatic cylinder. Correspondingly, the stop plate 41 has a second through-hole 412 through which this first guide rod 53 passes.

[0061] Figure 4 This is a partial structural diagram of the skirt plate rolling welding equipment, which shows the welding device 9, welding locator 12, and welding platform 11. The welding platform 11 is installed on the frame 1, specifically above the intermediate area between the feed roller assembly 23 and the guide roller assembly 21. The welding locator 12 can slide horizontally relative to the welding platform 11 (specifically, the movement direction of the welding locator 12 is consistent with the axial direction of the annular skirt plate 100). The welding device 9 is installed on the welding locator 12 and can move with the welding locator 12 to weld the front and rear ends of the annular skirt plate 100 together.

[0062] Figure 5 for Figure 4 In the side view, the frame 1 has a first vertical plate 95 and a second vertical plate 96 arranged in parallel and spaced apart in the left and right directions. A movable seat 13 capable of sliding left and right is provided between the first vertical plate 95 and the second vertical plate 96. The movable seat 13 is strip-shaped, and a strip-shaped tooth portion 130 is provided at the bottom along the length direction. The first vertical plate 95 also has a first drive motor 15 (combined with Figure 4 ), a gear 14 is coaxially connected to the output shaft of the first drive motor 15, and the gear 14 is engaged with the bar gear 14 of the movable base 13, thereby driving the movable base 13 to move left and right.

[0063] Figure 12 for Figure 5The cross-sectional view at point AA in the center shows that the cross-section of the welding locator 12 is an inverted triangle with a larger top and a smaller bottom. A first bracket 16 with an N-shaped cross-section is mounted on the top surface of the welding locator 12. A first lifting cylinder 61 is mounted on the first bracket 16. The power output end of the first lifting cylinder 61 can extend downward and connect to the lifting plate 62, thereby driving the lifting plate 62 to move up and down. Specifically, a vertical guide slot 120 is provided in the middle of the welding locator 12 for the lifting plate 62 to pass through. The lower end of the guide slot 120 is located at the lowest point of the welding locator 12. More specifically, the lifting plate 62 has a first state in which it is located at a lower position and a second state in which it is located at a higher position during its vertical movement. In the first state, the lower side of the lifting plate 62 is exposed outside the bottom wall of the welding positioning seat 12, thereby separating the front and rear ends of the annular skirt plate 100 (described in detail below). In the second state, the lower side of the lifting plate 62 is received in the guide groove 120 of the welding positioning seat 12, thereby releasing the separation between the front and rear ends of the annular skirt plate 100, allowing the front and rear ends of the annular skirt plate 100 to move toward each other and align. The above-mentioned first lifting cylinder 61 and lifting plate 62 constitute the lifting plate assembly 6 of this embodiment.

[0064] During the rolling and bending process, the lower end of the lifting plate 62 can move downward to expose the bottom wall of the welding positioning seat 12 to form a spacer. As a result, during the rolling and bending process, the front end of the skirt blank can be abutted against the above-mentioned spacer to achieve positioning, avoiding the problem of the skirt blank detaching during the rolling process. After the lifting component adjusts the rear end of the annular skirt plate 100 after rolling and bending into place (the specific process is described below), the lifting plate 62 can move up again to release the spacing state of the front and rear ends of the annular skirt plate 100, so as to allow the front and rear ends of the annular skirt plate 100 to move toward each other and align, so that the welding device 9 can perform welding operations in situ.

[0065] Continue to see Figure 4 The welding device 9 includes a third lifting cylinder 91, a welding support seat 92, and a welding head 93 provided on the welding support seat 92. The third lifting cylinder 91 is provided on the upper first bracket 16 on the welding positioning seat 12 and has a power end that can move up and down. Specifically, the power end of the third lifting cylinder 91 extends upward, and the welding support seat 92 is provided on the power end of the third lifting cylinder 91. During the welding process, the moving direction of the welding positioning seat 12 is shown in FIG. Figure 3 Indicated by the arrow direction.

[0066] Back to Figure 12During the rolling process of the skirt plate blank, the front end of the skirt plate blank can be guided by the limit baffle to extend into the rear side gap m between the welding positioning seat 12 and the welding platform 11, but the rear end of the skirt plate blank cannot smoothly enter the front side gap n between the welding positioning seat 12 and the welding platform 11 (that is, the rear end of the skirt plate blank is still located below this area). Therefore, a lifting component is required to act on the annular skirt plate 100 so that the rear end of the annular skirt plate 100 moves slightly upward, thereby shifting to the gap position.

[0067] Figure 6-Figure 8 : A structural schematic diagram of the lifting rod 83 of the lifting assembly in the skirt plate rolling welding equipment in different states is shown. The lifting assembly also includes a support frame 81, a sliding frame 82, a lifting drive mechanism 87, a transverse drive mechanism 84 and a lifting rod 83. The support frame 81 is arranged on the frame 1 and is arranged adjacent to the port of the annular skirt plate 100. The lifting drive mechanism 87 of this embodiment is arranged on the support frame 81 and has a power output end that can move linearly in the vertical direction. A second slide 86 is provided on the support frame 81, and the sliding frame 82 is slidably constrained on the second slide 86 by a second slide rail 85. Specifically, the sliding frame 82 is arranged on the upper part of the second slide rail 85 and is connected to the power output end of the lifting drive mechanism. A transverse drive mechanism 84 is mounted on the carriage 82 and includes a power output terminal capable of linear movement in the left-right direction. A lifting rod 83 is connected to the power output terminal of the transverse drive mechanism 84 and, driven by the transverse drive mechanism 84, can be moved into and out of the annular skirt panel 100. The transverse drive mechanism 84 and the lifting drive mechanism 87 are electrically connected to a control system, enabling the lifting rod 83 to be promptly removed from the annular skirt panel 100, facilitating unloading of the finished skirt panel after welding.

[0068] The above-mentioned transverse drive mechanism 84 and lifting drive mechanism can be various existing technologies such as cylinders, electric push rods, etc. In this embodiment, the transverse drive mechanism 84 and lifting drive mechanism are preferably cylinders. In addition, in order to accurately control the moving position of the lifting rod 83, a corresponding proximity switch can be set to identify it, for example, see Figure 7 The support frame 81 has different mounting holes in the height direction for mounting a proximity switch. The sliding frame 82 has a downwardly extending sensing rod 88. When the sliding frame 82 (also known as the lifting rod 83) moves up or down to a set position, the proximity switch can detect the sensing rod 88, thereby controlling the lifting drive mechanism to stop and maintain the lifting rod 83 in the set position. The different mounting holes in the height direction of the support frame 81 facilitate the adaptation of annular skirt panels 100 of different specifications.

[0069] After the lifting assembly lifts the annular skirt plate 100, the rear end of the annular skirt plate 100 may not be effectively aligned with the front end. Therefore, the skirt plate alignment and clamping device is required to adjust the annular skirt plate 100 so that the front and rear ends are effectively aligned. Specifically, the skirt plate alignment and clamping device of this embodiment can be used to align the front and rear ends of the annular skirt plate 100 after adjustment by the lifting rod in their original positions and press them against the welding platform 11.

[0070] The skirt plate alignment and clamping device of this embodiment includes a skirt plate vibration clamping mechanism and a lifting plate assembly 6, wherein the structure and working process of the lifting plate 62 have been described above. Specifically, the skirt plate vibration clamping mechanism includes a second lifting cylinder 71 and a vibrator 72. The vibrator 72 is connected to the power output end of the second lifting cylinder 71 and can move downward under the drive of the second lifting cylinder 71, thereby acting on the top of the annular skirt plate 100. The above-mentioned vibrator 72 can adopt a vibrator structure in the prior art that can be telescopically moved up and down. In addition, the above-mentioned second lifting cylinder 71 can also be replaced by other driving mechanisms in the prior art such as an electric push rod.

[0071] The frame 1 is also provided with a vertically arranged third bracket 73, on which the second lifting cylinder 71 is mounted. Furthermore, the vibrator 72 is provided with an upwardly extending second guide rod 74, and the third bracket 73 has a third through-hole 730 at a position corresponding to the upper area of ​​the vibrator 72 for the second guide rod 74 to pass through.

[0072] During the rolling and bending process, the lower end of the lifting plate 62 can move downward to expose the bottom wall of the welding positioning seat 12 to form a spacer. As a result, during the rolling and bending process, the front end of the skirt blank can be positioned against the above-mentioned spacer to avoid the skirt blank from being separated during the rolling process. After the lifting rod 83 adjusts the rear end of the annular skirt 100 after rolling and bending into place, the lifting plate 62 can move upward again to release the spacing state of the front and rear ends of the annular skirt 100, allowing the front and rear ends of the annular skirt 100 to move toward each other and align, so that the welding device 9 can perform the welding operation in situ. Among them, when the lifting plate 62 moves up to the set position, the vibrator 72 can move downward and press against the top of the annular skirt 100 under the drive of the second lifting cylinder 71. In the downward pressure state, the vibration action of the vibrator 72 can effectively align the front and rear sides of the skirt, thereby ensuring the welding effect of the annular skirt 100 at this point.

[0073] See also Figure 14 and Figure 15 The vibrating member 72 includes a first pressing plate 721, a second pressing plate 722, an elastic member 723, and a vibrator 724. The first pressing plate 721 and the second pressing plate 722 are arranged relative to each other in the vertical direction and spaced apart from each other.

[0074] The first pressing plate 721 is connected to the power output end of the second lifting drive mechanism 71. The second pressing plate 722 is located below the first pressing plate 721 and is constrained on the first pressing plate 721 in a manner that it can move up and down relative to the first pressing plate 721.

[0075] The second pressure plate 722 is provided with four upwardly extending connecting posts 725, one at each corner of the second pressure plate. The upper end of each connecting post 725 is inserted through the first pressure plate 721 and is retained above the first pressure plate 721 by a retaining member 726. Specifically, the retaining member 726 can be configured to engage the end of the connecting post 725 using a retaining spring and a retaining plate. Four elastic members 723 are springs, each mounted on one of the four connecting posts 725 and resting between the first and second pressure plates 721 and 722.

[0076] The vibration mode of the vibrator 724 of this embodiment can be pneumatic, electric or other driving modes.

[0077] The skirt plate blank rolling and welding processes are performed at the same station. After the rolling process is completed, the front and rear ends of the annular skirt plate 100 adjusted by the lifting assembly can be aligned in their original positions by a skirt plate alignment and clamping device, and pressed against the welding platform 11. The front and rear ends of the annular skirt plate 100 are then welded together by a welding device 9 that moves with the welding positioning seat 12. Since the rolling and welding operations are performed at the same station, the process of transferring the skirt plate between the rolling and welding stations in the prior art is eliminated, effectively improving production efficiency. On the other hand, concentrating the rolling and welding processes of the skirt plate blank at the same location can effectively reduce the size of the entire equipment and reduce the space occupied.

[0078] Combine Figure 3 and Figure 4In order to firmly press the front and rear ends of the annular skirt 100 after alignment, a first pressing assembly and a second pressing assembly are also arranged at intervals in the horizontal direction (i.e., the front and rear direction of the frame 1), wherein the first pressing assembly and the second pressing assembly are both located at the port position of the annular skirt 100, and can be specifically arranged on the second vertical plate 96. The first pressing assembly is located at the rear side of the second pressing assembly, and includes a first pressing cylinder 63 and a first pressing arm 64. The first pressing arm 64 is connected to the power output end of the first pressing cylinder 63, and can press the front end of the annular skirt 100 along the axis of the annular skirt 100 onto a corresponding stopper provided on the frame 1. Among them, the movement direction of the power output end of the first pressing cylinder 63 is consistent with the axis of the annular skirt 100, so that the first pressing arm 64 can be against the end edge of the annular skirt 100 and away from the annular skirt 100, thereby avoiding interference with the blanking of the annular skirt 100. The second pressing assembly includes a second pressing cylinder 65 and a second pressing arm 66. The second pressing arm 66 is connected to the power output end of the second pressing cylinder 65 and can press the rear end of the annular skirt plate 100 along its axis against a corresponding stopper provided on the frame 1. Similarly, the movement direction of the power output end of the second pressing cylinder 65 is consistent with the axis of the annular skirt plate 100, so that the second pressing arm 66 can abut against the end edge of the annular skirt plate 100 and move away from the annular skirt plate 100, thereby avoiding interference with the unloading of the annular skirt plate 100.

[0079] In this embodiment, the first clamping assembly and the second clamping assembly act in a sequential and step-by-step manner. During the rolling operation, the front end of the skirt blank can be guided by the limiting baffle to extend into the rear gap between the welding locating seat 12 and the welding platform 11. At this time, the first pressing arm 64 of the first clamping assembly can press the front end of the annular skirt 100 along its axial direction against the stopper of the frame 1. After the lifting assembly is adjusted, the rear end of the annular skirt 100 moves slightly upward, thereby shifting to between the welding locating seat 12 and the welding platform 11. Then, the vibrator 72 of the skirt vibrating clamping mechanism acts on the top of the annular skirt 100, thereby moving the rear end of the annular skirt 100 toward the front end of the annular skirt 100 and aligning it with the front end of the annular skirt 100. At this time, the second clamping assembly is activated, and its second pressing arm 66 presses the rear end of the annular skirt 100 along its axial direction against the other stopper of the frame 1.

[0080] The above-mentioned skirt plate vibration pressing mechanism, lifting plate assembly 6, first pressing assembly and second pressing assembly together constitute the skirt plate alignment and pressing device of this embodiment, which realizes the function of aligning the front and rear ends of the annular skirt plate 100 adjusted by the lifting assembly in the original position and pressing them on the welding platform 11.

[0081] The working process of the skirt plate rolling welding equipment implemented in this invention is as follows:

[0082] (1) The first lifting cylinder 61 is actuated to move the lifting plate 62 downward, and the lower side of the lifting plate 62 is exposed outside the bottom wall of the welding positioning seat 12 to form a spacer;

[0083] (2) The feed roller assembly 23 conveys the skirt blank forward, and guides the front end of the skirt blank to bend upward to form an annular skirt 100 through the cooperation of the guide roller assembly 21, the winding roller 22 and the limit baffle 41, wherein the front end of the annular skirt 100 can extend into the rear side gap m between the welding positioning seat 12 and the welding platform 11 under the guidance of the limit baffle 41, and abut against the rear side wall of the spacer portion of the lifting plate 62;

[0084] (3) The lifting drive mechanism of the lifting assembly moves, driving the sliding frame 82 to move upward. At the same time, the transverse drive mechanism 84 moves, driving the lifting rod 83 to extend into the annular skirt plate 100 and act on the inner wall of the annular skirt plate 100 to lift the annular skirt plate 100, so that the rear end of the annular skirt plate 100 enters the front side gap n between the welding positioning seat 12 and the welding platform 11. After the annular skirt plate 100 is lifted into place, the lifting drive mechanism and the transverse drive mechanism 84 are reset, driving the lifting rod 83 to move out of the annular skirt plate 100 and reset to the initial position, avoiding interference with the subsequent unloading process of the annular skirt plate 100;

[0085] (4) The first pressing cylinder 63 of the first pressing assembly is actuated, driving its first pressing arm 64 to move, pressing the front end of the annular skirt plate 100 against the stopper of the frame 1 along the axial direction of the annular skirt plate 100;

[0086] (5) The first lifting cylinder 61 is actuated again, driving the lifting plate 62 to move upward. The lower side of the lifting plate 62 is received in the guide groove 120120 of the welding positioning seat 12, thereby releasing the spacing between the front and rear ends of the annular skirt plate 100, thereby allowing the front and rear ends of the annular skirt plate 100 to move toward each other and align.

[0087] (6) When the lifting plate 62 moves to the set position, the vibrator 72 can move downward under the drive of the second lifting cylinder 71 and press against the top of the annular skirt 100. In the downward pressing state, the vibration action of the vibrator 72 can effectively align the front and rear sides of the skirt, thereby ensuring the welding effect of the annular skirt 100 at this location.

[0088] (7) The second pressing cylinder 65 of the second pressing assembly is actuated, driving its second pressing arm 66 to move, pressing the rear end of the annular skirt plate 100 against another stopper of the frame 1 along the axial direction of the annular skirt plate 100. At the same time, the vibrator 72 of the skirt plate vibration pressing mechanism releases the annular skirt plate 100 and moves upward to reset to the initial position.

[0089] (8) The third lifting cylinder 91 of the welding device 9 is actuated to drive the welding head 93 to move downward to the joint position of the front and rear ends of the annular skirt plate 100. The first driving motor 15 is actuated to drive the welding positioning seat 12 and the welding device 9 disposed thereon to move, and the front and rear ends of the annular skirt plate 100 are welded together by the welding head 93.

[0090] (9) After the welding of the annular skirt plate 100 is completed, the welding positioning seat 12 and the welding device 9 provided thereon are removed from the interior of the annular skirt plate 100. In addition, the first pressing arm 64 of the first pressing assembly and the second pressing arm 66 of the second pressing assembly also release the front and rear ends of the annular skirt plate 100 and move them out from the interior of the annular skirt plate 100 to avoid interference with the blanking process of the annular skirt plate 100.

[0091] (10) The push drive member 52 on the limiting baffle 41 is actuated, driving the push plate 51 to push the annular skirt plate 100 after welding, so that the annular skirt plate 100 rolls forward and leaves the welding platform 11, thereby realizing automatic unloading of the annular skirt plate 100 after welding.

Claims

1. A skirt plate curling welding device, comprising: A frame (1) having a welding platform (11), wherein a welding positioning seat (12) is provided on the welding platform (11); A rolling mechanism (2) is provided on the frame (1) and is used to drive the skirt board blank and convey it forward, and guide the front end of the skirt board blank to bend backward and upward to form an annular skirt board (100); The lifting rod (83) is driven by the lifting drive mechanism (87) to move up and down. When the lifting rod (83) moves upward, it can lift the annular skirt (100) after being rolled and bent so that its rear end moves upward and is inserted between the bottom of the welding positioning seat (12) and the welding platform (11); It is characterized by also including: a front stopper for abutting against the front side of the annular skirt (100) and a rear stopper for abutting against the rear side of the annular skirt (100), wherein the front stopper and the rear stopper can be constrained on the frame (1) in a manner that their positions can be adjusted in the front-to-back direction relative to the frame (1), thereby changing the distance between the front stopper and the rear stopper; The frame (1) is further provided with a limit bracket (31), the limit bracket (31) having at least two connection positions (3100) spaced apart in the front-to-back direction, the front limit member being a transversely arranged limit lever (32), one end of which is connected to the connection position (3100) of the limit bracket (31); The limiting bracket (31) is rotatably connected to the frame (1); the limiting bracket (31) is driven by the flip driving member (33) to drive the limiting blocking rod (32) to deflect along with the limiting bracket (31), and the limiting blocking rod (32) has a first state in which it is shifted to the front side of the annular skirt (100) and abuts against the annular skirt (100); and a second state in which it is shifted out of the front side area of ​​the annular skirt (100) and allows the annular skirt (100) to roll forward after welding is completed.

2. The skirt plate curling welding equipment according to claim 1, characterized in that: The limiting bracket (31) has a connecting arm (310) that tilts from rear to front and upward, and the connecting positions (3100) are arranged in sequence along the length direction of the connecting arm (310).

3. The skirt plate curling welding equipment according to claim 1, characterized in that: The rear limiting member is a vertically arranged limiting baffle (41), which is constrained on the frame (1) in a forward and backward sliding manner. A locking mechanism for locking the limiting baffle (41) in a set position is also provided between the limiting baffle (41) and the frame (1).

4. The skirt plate curling welding equipment according to claim 3, characterized in that: The back of the limit baffle (41) is hinged with a positioning rod (44) that can swing up and down, and the positioning rod (44) has at least two positioning notches (440) arranged at intervals along its length direction. The frame (1) has a positioning column (46) that matches each of the positioning notches (440). The limit baffle (41) also has a tension spring (47), one end of which is connected to the positioning rod (44) and makes the positioning rod (44) always have a tendency to swing downward. The positioning rod (44), the positioning column (46) and the tension spring (47) together constitute the locking mechanism.

5. The skirt plate curling welding equipment according to claim 3, characterized in that: The invention also includes a pushing mechanism arranged on the limiting baffle (41), the pushing mechanism including a pushing plate (51) and a pushing driving member (52), the pushing plate (51) being arranged on the front of the limiting baffle (41), the pushing driving member (52) being arranged on the back of the limiting baffle (41), the power output end of the pushing driving member (52) passing through the limiting baffle (41) and connected to the pushing plate (51), and being able to drive the pushing plate (51) to move forward and backward, thereby acting on the annular skirt (100) after welding is completed, so that the annular skirt (100) rolls forward and leaves the welding platform (11).

6. The skirt plate curling welding equipment according to any one of claims 1 to 5, characterized in that: The invention also includes a skirt plate alignment and pressing device, wherein the skirt plate alignment and pressing device includes a lifting plate assembly (6) and a skirt plate vibration pressing mechanism, wherein the lifting plate assembly (6) includes a first lifting cylinder (61) and a lifting plate (62), wherein the lifting plate (62) is arranged in the welding positioning seat and is connected to the power action end of the first lifting cylinder (61), and can move up and down relative to the welding positioning seat (12), and the lower side of the lifting plate (62) can move downward to expose the bottom wall of the welding positioning seat (12) to move the annular skirt The front and rear ends of the plate (100) are spaced apart, and the front and rear ends of the annular skirt plate (100) can be moved upward to release the spaced state, so as to allow the front and rear ends of the annular skirt plate (100) to move toward each other and align. The skirt plate vibration pressing mechanism includes a second lifting cylinder (71) and a vibrator (72). The vibrator (72) is connected to the power output end of the second lifting cylinder (71) and can move downward under the drive of the second lifting cylinder (71), thereby acting on the top of the annular skirt plate (100).

7. The skirt plate curling welding equipment according to any one of claims 1 to 5, characterized in that: The lifting rod (33) can also be driven by the lifting drive mechanism to extend into the annular skirt plate (100) and move out from the annular skirt plate (100).

8. The skirt plate curling welding equipment according to claim 7, characterized in that Also includes: A support frame (81) is provided on the frame (1) and is disposed adjacent to the end of the annular skirt (100); the lifting drive mechanism (87) is provided on the support frame (81); A sliding frame (82) is constrained on the support frame (81) to slide up and down, and is connected to the power output end of the lifting drive mechanism (87); A transverse driving mechanism (84) is provided on the sliding frame (82). The transverse driving mechanism (84) has a power output end capable of linearly moving in the left and right directions. The lifting rod (83) is connected to the power output end of the transverse driving mechanism (84) and can be shifted into the annular skirt (100) and can be moved out from the interior of the annular skirt (100) under the drive of the transverse driving mechanism (84).

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