Steel cylinder shield welding device

Abstract

The utility model relates to the technical field of welding devices, in particular to a steel cylinder shield welding device which comprises a base, a welding robot is arranged on the rear side of the top of the base, a welding gun is arranged on the welding robot, a rotating rack is arranged at the position, close to the front side, of the top of the base, and the rotating rack comprises a U-shaped support fixedly connected to the top of the base. A rotating motor is arranged at the top of the inner wall of the U-shaped support, an output shaft of the rotating motor penetrates through the inner wall of the U-shaped support and is coaxially connected with a rotating plate, a fixed vertical plate is arranged at the top of the rotating plate, and overturning racks are arranged on the front side and the rear side of the fixed vertical plate. According to the welding device for the steel cylinder shield, the overturning rack is driven by the rotating rack to rotate by 180 degrees, so that a welding station and a feeding station are alternately switched, a worker can feed materials to a vacant station when equipment runs, shutdown waiting is not needed, the production period is greatly shortened, and the problems that traditional manual welding is low in efficiency and long in shutdown time are solved.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a welding device for steel cylinder covers. Background Technology

[0002] Cylinder covers are crucial components used to protect storage containers such as gas cylinders and liquid cylinders. They are typically made of corrosion-resistant and high-strength metal materials. Their main function is to prevent damage to the cylinders from external physical impacts, chemical corrosion, and other potential hazards, thereby ensuring the safety and integrity of the stored contents. The design of a cylinder cover generally includes a metal ring and four V-shaped connecting blocks. The V-shaped connecting blocks are welded to the metal ring in a circular array, forming a robust integrated structure. When connecting the cylinder cover to the cylinder, the V-shaped connecting blocks are welded to the cylinder to improve the pressure resistance and stability of the cylinder valve seat during transportation and storage.

[0003] In the production process of gas cylinder covers, four V-shaped connecting blocks need to be fixed to a metal ring by welding. However, existing welding technology mainly relies on manual welding, and this traditional welding method faces many problems. First, manual welding is inefficient, usually requiring a lot of time for welding operations, leading to a longer overall production cycle. Second, labor costs are constantly rising, especially with a shortage of skilled workers, increasing the operational burden on enterprises. In addition, the traditional welding process requires flipping the gas cylinder cover to achieve secondary welding of the V-shaped connecting blocks, which not only increases the complexity and risk of the operation, but also further extends the welding time.

[0004] More importantly, the quality of manual welding is greatly affected by the operator's skill level, easily leading to uneven welding, insufficient weld strength, and subsequent safety hazards. Therefore, there is an urgent need for a steel cylinder cover welding device to overcome the shortcomings of existing welding technologies, improve production efficiency, reduce labor costs, and ensure the consistency and reliability of welding quality. Utility Model Content

[0005] The purpose of this invention is to provide a steel cylinder cover welding device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A steel cylinder cover welding device includes a base, which serves as a support base for the entire device to ensure equipment stability. A welding robot is mounted on the rear side of the top of the base. It is powered by an external power source and controls the movement trajectory of the welding gun through a program to achieve automated welding. The specific working principle of the welding robot is existing technology, such as the working principle described in the patent publication CN217965227U, which discloses an inner welding device for steel cylinder covers. It will not be repeated here. The welding robot is equipped with a welding gun, which directly performs welding operations at the connection between the metal ring and the V-shaped connecting block. The specific working principle of the welding gun is common knowledge to those skilled in the art and will not be elaborated here.

[0008] A rotating frame is located at the top of the base and near the front. The rotating frame drives the flipping frame to rotate 180°, realizing alternating welding and loading at two workstations. The rotating frame is used to rotate the flipping frame 180°, rotating the flipping frame with the workpiece in place to the rear, so that the workpiece can be welded by the welding robot. The empty flipping frame returns to the worker's loading position when the overall frame rotates 180°. The worker can place the workpiece on the empty flipping frame in front and fix it while the workpiece is being welded. After the workpiece on the rear flipping frame is finished, it can be immediately connected without wasting loading time, and the machine can be kept running.

[0009] The rotating frame includes a U-shaped bracket fixedly connected to the top of the base, a fixed rotating motor, and a rotating plate. The rotating motor is located on the top of the inner wall of the U-shaped bracket, powered by an external power source, to provide power to the rotating plate and drive the rotating frame to rotate. The output shaft of the rotating motor passes through the inner wall of the U-shaped bracket and is coaxially connected to the rotating plate, transmitting rotational power to the fixed vertical plate. The top of the rotating plate is equipped with a fixed vertical plate, and the front and rear sides of the fixed vertical plate are equipped with rotating frames for positioning the workpiece. After welding the upper connection between the V-shaped connecting block and the metal ring, the rotating frame flips the workpiece 180°. At this time, since the upper connection between the V-shaped connecting block and the metal ring is welded, the V-shaped connecting block will not fall off. Then, the welding robot performs welding operations on the lower connection between the V-shaped connecting block and the metal ring. After the lower connection between the V-shaped connecting block and the metal ring is also welded, the rotating frame flips the workpiece again to facilitate the subsequent removal of the welded workpiece and placement of the workpiece to be welded by the subsequent workers.

[0010] The flipping frame includes two rectangular side plates arranged symmetrically to support the flipping frame and install a flipping motor. The flipping frame is rotatably connected between the two rectangular side plates, carrying the circular workstation plate and completing the workpiece flipping action. One of the rectangular side plates has a flipping motor on its outer side for driving the flipping frame to rotate. It is powered by an external power source and drives the flipping frame to rotate 180° to achieve double-sided welding. The flipping frame has three circular workstation plates arranged at equal intervals, positioning metal rings and V-shaped connecting blocks to provide welding stations. The top of the circular workstation plate has two electric telescopic rods arranged symmetrically to support the workstation. They are powered by an external power source. The movable rods of the two electric telescopic rods are equipped with positioning blocks. The two positioning blocks are connected to the metal ring.

[0011] After the metal ring is placed on top of the circular workstation plate, the two electric telescopic rods start synchronously. The movable rods of the electric telescopic rods extend, causing the two positioning blocks to move in opposite directions synchronously until the two positioning blocks lock the metal ring into a fixed position.

[0012] The outer wall of the circular work station plate has four U-shaped welding ports arranged in a ring array for the welding gun to pass through, so that the welding gun can weld the connection between the V-shaped connecting block and the metal ring.

[0013] The top of the circular workstation plate has four positioning slots arranged in a ring array. Each of the four positioning slots holds a V-shaped connecting block. The shape of the positioning slot matches the shape of the bottom of the V-shaped connecting block, so that the V-shaped connecting block can be stably placed in the positioning slot.

[0014] Preferably, the top of the fixed vertical plate is provided with a welding arc baffle, and the bottom of the welding arc baffle is detachably connected to the fixed vertical plate by bolts to block welding arc light and spatter, thus protecting the operator.

[0015] Preferably, the bottom of both the front and rear sides of the fixed vertical plate is provided with a plurality of triangular reinforcing blocks arranged at equal intervals. The bottom of the triangular reinforcing blocks is fixedly connected to the top of the rotating plate to enhance the connection strength between the fixed vertical plate and the rotating plate.

[0016] Preferably, the outer wall of the circular workstation plate is provided with two connecting plates arranged symmetrically in front and behind. The opposite sides of the two connecting plates are respectively fixedly connected to the front and rear sides of the inner wall of the flipping frame, so as to fix the circular workstation plate and the flipping frame together.

[0017] Preferably, the top of the circular workstation plate has two mounting slots arranged symmetrically from left to right, and the two electric telescopic rods are respectively located in the two mounting slots to fix the position of the electric telescopic rods.

[0018] Preferably, the outer wall of the circular workstation plate has two U-shaped clearance openings arranged symmetrically from left to right, and the two positioning blocks are respectively located in the two U-shaped clearance openings to avoid interference between the positioning blocks and the circular workstation plate when they move.

[0019] Preferably, the four U-shaped welding joints are respectively connected to four positioning slots. When the V-shaped connecting block is placed in the positioning slot, the outer side of the V-shaped connecting block abuts against the outer wall of the metal ring, ensuring that the V-shaped connecting block and the metal ring fit tightly together and improving the welding quality.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This cylinder cover welding device drives the rotating frame to rotate 180°, allowing the welding station and the material feeding station to switch alternately. Workers can feed materials to the empty station while the equipment is running, without having to stop the machine to wait, which greatly shortens the production cycle and solves the problems of low efficiency and long downtime of traditional manual welding.

[0022] 2. This cylinder cover welding device uses a rotating frame to drive the workpiece to rotate 180°, completing the double-sided welding of the metal ring and V-shaped connecting block in one go. This avoids the complicated operation of manually rotating the workpiece, reduces welding time, and lowers safety risks.

[0023] 3. The positioning slot of this cylinder cover welding device matches the bottom shape of the V-shaped connecting block. Combined with the positioning block driven by the electric telescopic rod, it automatically clamps the metal ring, realizing the rapid positioning and fixing of the workpiece, avoiding welding position deviation caused by manual operation, and improving welding strength and finished product reliability.

[0024] 4. The welding device for the gas cylinder cover has a welding arc baffle that can block the arc light and spatter generated during the welding process, protecting the operator from injury; the U-shaped welding port ensures that the welding gun's working path is unobstructed, further reducing the risk of equipment failure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the assembly structure of the rotating frame and the welding arc baffle in this utility model;

[0028] Figure 4 This is a partial structural schematic diagram of the present invention;

[0029] Figure 5This is a schematic diagram of the assembly structure of the flipping frame, metal ring and V-shaped connecting block in this utility model;

[0030] Figure 6 This is a schematic diagram of the assembly structure of the circular workstation plate and the electric telescopic rod in this utility model;

[0031] Figure 7 This is a partial structural diagram of the tilting frame in this utility model;

[0032] In the diagram: 1. Base; 2. Welding robot; 3. Welding gun; 4. Rotating frame; 40. U-shaped bracket; 41. Rotating motor; 42. Rotating plate; 43. Fixed vertical plate; 44. Triangular reinforcing block; 5. Tilting frame; 50. Rectangular side plate; 51. Tilting frame; 52. Tilting motor; 53. Circular workstation plate; 530. Connecting plate; 531. U-shaped welding joint; 532. Positioning slot; 533. Installation slot; 534. U-shaped clearance opening; 54. Electric telescopic rod; 55. Positioning block; 6. Welding arc baffle; 7. Metal ring; 8. V-shaped connecting block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Please see Figures 1-7 This utility model provides a technical solution:

[0036] A steel cylinder cover welding device includes a base 1, which serves as a support base for the entire device to ensure the stability of the equipment. A welding robot 2 is installed on the rear side of the top of the base 1. It is powered by an external power source and controls the movement trajectory of the welding gun 3 through a program to achieve automated welding. The specific working principle of the welding robot 2 is existing technology, such as the working principle described in the patent publication CN217965227U, which discloses a steel cylinder cover inner welding device. It will not be repeated here. The welding robot 2 is equipped with a welding gun 3, which directly performs welding operations on the connection between the metal ring 7 and the V-shaped connecting block 8. The specific working principle of the welding gun is common knowledge to those skilled in the art and will not be repeated here.

[0037] A rotating frame 4 is located at the top of the base 1 and near the front. It drives the flipping frame 5 to rotate 180°, realizing alternating welding and loading at two workstations. The rotating frame 4 is used to rotate the flipping frame 5, causing the flipping frame 5 to rotate 180°. The flipping frame 5 with the workpiece in place is rotated to the rear, so that the workpiece can be welded by the welding robot 2. The empty flipping frame 5 returns to the worker's loading position when the entire frame rotates 180°. During the welding process, the worker can continue to place the workpiece on the empty flipping frame 5 in front and fix it. After the workpiece on the flipping frame 5 in the rear is welded, it can be connected immediately without wasting loading time, and the machine can be kept running.

[0038] The rotating frame 4 includes a U-shaped bracket 40 fixedly connected to the top of the base 1, which fixes a rotating motor 41 and supports a rotating plate 42. The rotating motor 41 is located on the top of the inner wall of the U-shaped bracket 40, and is powered by an external power source to provide power to the rotating plate 42, driving the rotating frame 5 to rotate. The output shaft of the rotating motor 41 passes through the inner wall of the U-shaped bracket 40 and is coaxially connected to the rotating plate 42, transmitting rotational power to a fixed vertical plate 43. The top of the rotating plate 42 is equipped with a fixed vertical plate 43, and the rotating frame 5 is located on both the front and rear sides of the fixed vertical plate 43 for positioning the workpiece. After welding the upper connection between the V-shaped connecting block 8 and the metal ring 7, the flipping frame 5 flips the workpiece 180°. At this time, since the upper connection between the V-shaped connecting block 8 and the metal ring 7 is welded, the V-shaped connecting block 8 will not fall off. Then the welding robot 2 performs welding operations on the lower connection between the V-shaped connecting block 8 and the metal ring 7. When the lower connection between the V-shaped connecting block 8 and the metal ring 7 is also welded, the flipping frame 5 flips the workpiece again so that the subsequent staff can take out the welded workpiece and place the workpiece to be welded.

[0039] The flipping frame 5 includes two rectangular side plates 50 arranged symmetrically on the left and right, supporting the flipping frame 51 and installing the flipping motor 52. The flipping frame 51 is rotatably connected between the two rectangular side plates 50, carrying the circular workstation plate 53 and completing the workpiece flipping action. One of the rectangular side plates 50 is provided with a flipping motor 52 on the outside for driving the flipping frame 51 to rotate. It is powered by an external power source and drives the flipping frame 51 to rotate 180° to achieve double-sided welding. The flipping frame 51 is provided with three circular workstation plates 53 arranged at equal intervals, positioning metal rings 7 and V-shaped connecting blocks 8 to provide welding stations. The top of the circular workstation plate 53 is provided with two electric telescopic rods 54 arranged symmetrically on the left and right, powered by an external power source. The movable rods of the two electric telescopic rods 54 are provided with positioning blocks 55. The two positioning blocks 55 are connected to the metal rings 7.

[0040] When the metal ring 7 is placed on top of the circular workstation plate 53, the two electric telescopic rods 54 start synchronously, the movable rods of the electric telescopic rods 54 extend, and the two positioning blocks 55 move synchronously in opposite directions until the two positioning blocks 55 lock the metal ring 7 into a fixed position.

[0041] The outer wall of the circular work station plate 53 has four U-shaped welding ports 531 arranged in a ring array for the welding gun 3 to pass through, so that the welding gun 3 can weld the connection between the V-shaped connecting block 8 and the metal ring 7.

[0042] The top of the circular workstation plate 53 has four positioning slots 532 arranged in a ring array. Each of the four positioning slots 532 holds a V-shaped connecting block 8. The shape of the positioning slot 532 matches the shape of the bottom of the V-shaped connecting block 8, so that the V-shaped connecting block 8 can be stably placed in the positioning slot 532.

[0043] In this embodiment, a welding arc baffle 6 is provided at the top of the fixed vertical plate 43. The bottom of the welding arc baffle 6 is detachably connected to the fixed vertical plate 43 by bolts to block welding arc light and spatter, thus protecting the operator.

[0044] Specifically, multiple triangular reinforcing blocks 44 are provided at the bottom of both the front and rear sides of the fixed vertical plate 43, arranged at equal intervals. The bottom of the triangular reinforcing blocks 44 is fixedly connected to the top of the rotating plate 42, thereby enhancing the connection strength between the fixed vertical plate 43 and the rotating plate 42.

[0045] Furthermore, the outer wall of the circular workstation plate 53 is provided with two connecting plates 530 arranged symmetrically in front and behind. The opposite sides of the two connecting plates 530 are respectively fixedly connected to the front and rear sides of the inner wall of the flip frame 51, so as to fix the circular workstation plate 53 and the flip frame 51.

[0046] Furthermore, the top of the circular workstation plate 53 has two mounting slots 533 arranged symmetrically from left to right, and two electric telescopic rods 54 are located in the two mounting slots 533 respectively to fix the position of the electric telescopic rods 54.

[0047] Furthermore, the outer wall of the circular workstation plate 53 has two U-shaped clearance openings 534 arranged symmetrically from left to right, and two positioning blocks 55 are respectively located in the two U-shaped clearance openings 534 to avoid interference between the positioning blocks 55 and the circular workstation plate 53 when they move.

[0048] Furthermore, the four U-shaped welding ports 531 are respectively connected to the four positioning slots 532. When the V-shaped connecting block 8 is placed in the positioning slot 532, the outer side of the V-shaped connecting block 8 abuts against the outer wall of the metal ring 7, ensuring that the V-shaped connecting block 8 and the metal ring 7 fit tightly together and improving the welding quality.

[0049] In this embodiment, when using the cylinder cover welding device, the operator first places the metal ring 7 on top of the circular workstation plate 53, and drives its movable rod to extend by the electric telescopic rod 54, causing the two positioning blocks 55 to move synchronously in opposite directions, thus locking and fixing the metal ring 7. Then, the four V-shaped connecting blocks 8 are placed in the positioning slots 532 of the circular workstation plate 53, using their shape adaptation characteristics to achieve positioning. The rotary motor 41 is started to drive the rotating plate 42 to rotate 180°, which drives the flipping frames 5 on both sides of the fixed vertical plate 43 to switch positions. At this time, the flipping frames 5 with the positioned workpiece are rotated to the welding area corresponding to the welding robot 2, and the worker can simultaneously... On the other side of the rotating frame 5, the workpiece to be welded is placed on the empty circular workstation plate 53. The welding robot 2 controls the welding gun 3 to pass through the U-shaped welding port 531 of the circular workstation plate 53 to weld the upper connection of the V-shaped connecting block 8 and the metal ring 7. After the upper welding is completed, the rotating motor 52 drives the rotating frame 51 to rotate 180°, so that the workpiece is rotated and the welding gun 3 completes the welding of the lower connection. During the welding process, the welding arc baffle 6 blocks the arc light and spatter. After the welding is completed, the rotating frame 4 rotates 180° again to move the finished workpiece back to the loading position. The operator unloads the workpiece and repeats the above process to achieve continuous operation.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding device for a steel cylinder cover, comprising a base (1), characterized in that: A welding robot (2) is provided on the rear side of the top of the base (1). A welding gun (3) is provided on the welding robot (2). A rotating frame (4) is provided on the top of the base (1) and near the front side. The rotating frame (4) includes a U-shaped bracket (40) fixedly connected to the top of the base (1). A rotary motor (41) is provided on the top of the inner wall of the U-shaped bracket (40). The output shaft of the rotary motor (41) passes through the inner wall of the U-shaped bracket (40) and is coaxially connected to a rotating plate (42). A fixed vertical plate (43) is provided on the top of the rotating plate (42). A flipping frame (5) is provided on both the front and rear sides of the fixed vertical plate (43). The flipping frame (5) includes two rectangular side plates (50) arranged symmetrically on the left and right. A flipping frame is rotatably connected between the two rectangular side plates (50). The body (51) has a rotating motor (52) on the outside of one of the rectangular side plates (50) for driving the rotating frame (51) to rotate. The rotating frame (51) has three equally spaced circular workstation plates (53). The top of the circular workstation plates (53) has two electric telescopic rods (54) arranged symmetrically on the left and right. The movable rods of the two electric telescopic rods (54) are provided with positioning blocks (55). The two positioning blocks (55) are connected to a metal ring (7). The outer wall of the circular workstation plate (53) has four U-shaped welding ports (531) arranged in a ring array. The top of the circular workstation plate (53) has four positioning slots (532) arranged in a ring array. Each of the four positioning slots (532) is provided with a V-shaped connecting block (8).

2. The cylinder cover welding device according to claim 1, characterized in that: The top of the fixed vertical plate (43) is provided with a welding arc baffle (6), and the bottom of the welding arc baffle (6) is detachably connected to the fixed vertical plate (43) by bolts.

3. The cylinder cover welding device according to claim 1, characterized in that: The bottom of the front and rear sides of the fixed vertical plate (43) is provided with a number of triangular reinforcing blocks (44) arranged at equal intervals. The bottom of the triangular reinforcing blocks (44) is fixedly connected to the top of the rotating plate (42).

4. The cylinder cover welding device according to claim 1, characterized in that: The outer wall of the circular workstation plate (53) is provided with two connecting plates (530) arranged symmetrically in front and behind. The opposite sides of the two connecting plates (530) are respectively fixedly connected to the front and back sides of the inner wall of the flip frame (51).

5. The cylinder cover welding device according to claim 1, characterized in that: The top of the circular workstation plate (53) has two mounting slots (533) arranged symmetrically from left to right, and the two electric telescopic rods (54) are located in the two mounting slots (533) respectively.

6. The cylinder cover welding device according to claim 1, characterized in that: The outer wall of the circular workstation plate (53) has two U-shaped clearance openings (534) arranged symmetrically from left to right, and the two positioning blocks (55) are located in the two U-shaped clearance openings (534) respectively.

7. The cylinder cover welding device according to claim 1, characterized in that: The four U-shaped welding ports (531) are respectively connected to the four positioning slots (532). When the V-shaped connecting block (8) is placed in the positioning slot (532), the outer side of the V-shaped connecting block (8) abuts against the outer wall of the metal ring (7).

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