3Y steel sheet pile welding forming device

Abstract

A 3Y steel sheet pile welding forming device is characterized by being composed of a pre-welding platform and a final welding platform. The pre-welding platform comprises a pre-assembling tool platform (2), and the pre-assembling tool platform (2) is installed on a support (4). A positioning boss (5) for fixing the Y-shaped steel sheet pile (3) is arranged on the preassembling tool platform (2), and a plurality of push-pull type quick clamps (1) with different heights are mounted on the two sides of the positioning boss (5); the two ends of the preassembled body (6) are respectively clamped in two corresponding three-jaw chucks (7), and one three-jaw chuck (7) is connected with a motor (8) for driving the three-jaw chuck (7) to rotate; the other three-jaw chuck (7) is connected with a driven clamp (10), and the driven clamp (10) is rotatably installed on a movable support (11). The utility model meets the urgent need of production, has the advantages of simple structure, convenience in manufacture and installation and capability of greatly improving the production efficiency, and can meet the requirement of batch production of 3Y-shaped steel plates.

Description

Technical Field

[0001] This utility model relates to a steel sheet pile technology, and more particularly to a production technology for irregularly shaped steel sheet piles, specifically a 3Y steel sheet pile welding and forming device method. Background Technology

[0002] Currently, sheet pile technology, as an efficient and environmentally friendly temporary or permanent support structure, is widely used in civil engineering, water conservancy projects, port construction, and other fields. Chinese patents such as 2010101882260, 201010188228X, 2010101882364, and 2010101882398 comprehensively disclose the general shapes and manufacturing methods of existing sheet piles. After decades of development, the main direction of sheet pile development has been the application of high-strength steel: modern sheet piles mostly use high-strength low-alloy steel (such as S355 and S420), which combines high load-bearing capacity and corrosion resistance. In some special environments, stainless steel or anti-corrosion coatings (such as epoxy coatings and galvanizing) are used. Its forming process mainly involves cold bending, producing U-shaped, Z-shaped, and straight sections to improve the bending and shear resistance of the pile. Laser welding technology can also be used to improve joint strength. Lightweight design is becoming a development direction for many manufacturing companies, aiming to reduce steel usage while protecting strength and moment of inertia, thus achieving green development. Currently, optimized cross-sectional shapes mainly include "cap-shaped" and "box-shaped" sections. Although these partially achieve lightweighting and reduce construction difficulty and transportation costs, they still suffer from complex structures, high manufacturing costs, and the need for specialized equipment for mass production, making widespread adoption difficult.

[0003] Therefore, sheet pile technology is developing towards high strength, intelligence, and green technology, and has great potential in fields such as deep-sea engineering and urban underground space development. However, cost control, adaptability to complex geological conditions, and full life-cycle management remain key areas for the industry to overcome. To address these issues, a 3Y-shaped sheet pile can be designed to effectively solve these problems. The 3Y-shaped sheet pile is formed by welding three Y-shaped sheet piles together as a single unit. Figure 1 As shown, since their length is usually tens of meters, ordinary welding methods are difficult to meet production needs and ensure welding quality. CNC welding robots must be used for welding. In order to meet the needs of CNC welding robots, corresponding welding fixtures must be designed to meet production needs. Utility Model Content

[0004] The purpose of this invention is to address the challenges of existing steel sheet pile structures in achieving lightweighting, material conservation, and high production costs by designing a 3Y steel sheet pile welding and forming device.

[0005] The technical solution of this utility model is:

[0006] A 3Y sheet pile welding and forming device is characterized by comprising a pre-welding platform and a final welding platform. The pre-welding platform is used to combine and spot weld three Y-shaped sheet piles to form a pre-assembled body. The final welding platform is used to rotate the pre-assembled body to a set angle and complete the final welding using a CNC welding robot 12. The pre-welding platform includes a pre-assembly tooling platform 2, which is mounted on a support 4. The pre-assembly tooling platform 2 is provided with a positioning boss 5 for fixing the Y-shaped sheet piles 3, and several... Push-pull quick clamps 1 with varying heights are used to fix Y-shaped steel sheet piles 3; after the three Y-shaped steel sheet piles 3 are fixed, they are spot welded to form a pre-assembled body 6. The two ends of the pre-assembled body 6 are respectively clamped in two corresponding three-jaw chucks 7. One three-jaw chuck 7 is connected to a motor 8 that drives its rotation. The motor 8 is fixed on a fixed bracket 9. The other three-jaw chuck 7 is connected to a passive clamp 10. The passive clamp 10 is rotatably mounted on a movable bracket 11. The movable bracket 11 can move and lock its position on the bracket platform 13.

[0007] At each end of the positioning boss 5 is a push-pull quick clamp 1 for positioning the end of the Y-shaped steel sheet pile 3.

[0008] The three-jaw chuck 7 rotates 120 degrees each time, and rotates three times in total to complete the welding of the three boat-shaped welds.

[0009] The output shaft of the motor 8 is directly or indirectly connected to the three-jaw chuck 7.

[0010] The beneficial effects of this utility model are:

[0011] This utility model solves the urgent production needs, has the advantages of simple structure, convenient manufacturing and installation, and can greatly improve production efficiency, and can meet the mass production needs of 3Y-shaped steel plate assembly. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the 3Y-shaped steel sheet pile of this utility model.

[0013] Figure 2 This is a schematic diagram of the 3Y steel sheet pile welding device of this utility model.

[0014] Figure 3 yes Figure 2 Top view.

[0015] Figure 4 This is a schematic diagram of the 3Y steel sheet pile assembly and spot welding device of this utility model.

[0016] Figure 5 This is a schematic diagram of the installation state of the first Y-shaped steel sheet pile of this utility model on the assembly spot welding device.

[0017] Figure 6This is a schematic diagram of the installation state of the second Y-shaped steel sheet pile of this utility model on the assembly spot welding device.

[0018] Figure 7 This is a schematic diagram of the installation state of the third Y-shaped steel sheet pile of this utility model on the assembly spot welding device.

[0019] Figure 8 This is a schematic diagram of the state of the fixed chuck of this utility model when it is rotated to the first welding position. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 As shown.

[0022] A type of 3Y-shaped steel sheet pile, such as Figure 1 As shown, it is composed of three Y-shaped steel sheet piles, with the vertical sides of the three Y-shaped steel sheet piles welded together at equal angles.

[0023] It should be noted that the equipment and components used in the 3Y-shaped steel sheet pile welding and forming device of this utility model can be self-made according to the attached drawings or directly purchased or customized from the market. The CNC welding robot 12 can be model GLLMH-350, a conventional device. The horizontal push-pull quick clamp 1 can be designed independently or directly use a commercially available product, model GH-305-HM. The rotatable bracket used in the welding process can be designed or customized according to the requirements of this utility model (using pneumatic drive for clamping and rotation). Similarly, the three-jaw chuck used in the welding process can be directly purchased or customized from the market; its function is to hold the welding fixture and drive its rotation. The passive clamp connected to the three-jaw chuck can be designed independently or directly purchased from the market; its function is to support the rotation and axial positioning of the three-jaw chuck. The motor can also be connected to the three-jaw chuck through a transition mechanism (such as a reducing mechanism) and a support and connection mechanism. Details are as follows.

[0024] like Figure 2-8 As shown.

[0025] A 3Y steel sheet pile welding and forming device, which consists of Figure 4 The pre-welding platform shown in Figure 2 and the final welding platform shown in Figures 2 and 3 together form a pre-assembled body by combining and spot-welding three Y-shaped steel sheet piles. Figure 5 , 67), the final welding platform is used to rotate the pre-assembled body to a set angle and complete the final welding using a CNC welding robot 12; the pre-welding platform includes a pre-assembly fixture platform 2, which is mounted on a bracket 4; the pre-assembly fixture platform 2 is provided with a positioning boss 5 for fixing the Y-shaped steel sheet piles 3, and several push-pull quick clamps 1 of different heights for fixing the Y-shaped steel sheet piles 3 are installed on both sides of the positioning boss 5. At each end of the positioning boss 5, a push-pull quick clamp 1 is also installed to position the end of the Y-shaped steel sheet pile 3. After the three Y-shaped steel sheet piles 3 are fixed, they are spot welded to form a pre-assembled body 6. The two ends of the pre-assembled body 6 are respectively clamped in two corresponding three-jaw chucks 7 (e.g., Figure 1 , 8 In this configuration, one three-jaw chuck 7 is directly or indirectly connected to a motor 8 that drives its rotation. When directly connected, the motor is typically a stepper motor or a rotary motor; when indirectly connected, a speed reducer is added. The motor 8 is fixed to a fixed bracket 9. The other three-jaw chuck 7 is connected to a passive clamp 10, which is rotatably mounted on a movable bracket 11. The movable bracket 11 can move and lock onto a support platform 13. The three-jaw chuck 7 rotates 120 degrees at a time (e.g., ...). Figure 8 The machine rotates three times to complete the welding of the three boat-shaped seams.

[0026] The method of using this utility model is as follows:

[0027] After the spot-welded integral Y-shaped workpiece 6 is removed from the pre-welding platform, it is sent to the final welding platform.

[0028] First, fix the two Y-shaped sheet piles to both sides of the inverted V-shaped clamp base using horizontal push-pull clamps, as follows: Figure 5 , 6 The inclined side of the Y-shaped steel sheet pile is in contact with the inclined side of the positioning boss 5, and the straight side of the Y-shaped steel sheet pile is in contact with the straight side of the inverted positioning boss 5.

[0029] Secondly, the straight edge of the third Y-shaped sheet pile is clamped using a horizontal push-pull clamp, so that the lower part of the straight edge of the third Y-shaped sheet pile is located at the highest point of the inverted positioning boss 5 and contacts the top of the inclined edges of the other two Y-shaped sheet piles previously fixed to both sides of the inverted V-shaped clamp base; as Figure 7 ;

[0030] Next, a spot welding machine is used to spot weld the contact parts of the three Y-shaped sheet piles, forming a preliminary 3Y-shaped sheet pile; then, the preliminary 3Y-shaped sheet pile is clamped in a powered rotating three-jaw chuck (such as...). Figure 8The three-jaw chuck is rotated to expose the spot weld seam to the welding torch of the gantry-shaped CNC welding robot 12 with the maximum field of view. After one spot weld seam is completed, the robot rotates at the set angle to complete the second spot weld seam, and so on, until all three spot weld seams are completed, resulting in the desired shape. Figure 1 The 3Y-shaped steel sheet pile shown.

[0031] Finally, the 3Y-shaped steel sheet piles undergo subsequent heat treatment and flaw detection. Qualified products are then surface-treated, sawn to the required length, marked, packaged, and stacked for subsequent transportation and sale.

[0032] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A 3Y steel sheet pile welding forming device, characterized in that: It is composed of a pre-welding platform and a final welding platform, the pre-welding platform is used to combine three Y-shaped steel sheet piles and spot weld to form a pre-assembled body, the final welding platform is used to rotate the pre-assembled body to a set angle and complete the final welding by using a numerical control welding manipulator (12); the pre-welding platform comprises a pre-assembled tool platform (2), the pre-assembled tool platform (2) is installed on a support (4); the pre-assembled tool platform (2) is provided with a positioning boss (5) for fixing the Y-shaped steel sheet pile (3), a plurality of push-pull quick clamps (1) for fixing the Y-shaped steel sheet pile (3) are installed on both sides of the positioning boss (5) and have different heights; after the three Y-shaped steel sheet piles (3) are fixed, the pre-assembled body (6) is formed by spot welding, both ends of the pre-assembled body (6) are clamped in corresponding two three-jaw chucks (7) respectively, one three-jaw chuck (7) is connected with a motor (8) for driving the rotation of the three-jaw chuck (7), the motor (8) is fixed on a fixed support (9); the other three-jaw chuck (7) is connected with a passive clamp (10), the passive clamp (10) is rotatably installed on a moving support (11), the moving support (11) can move on a support platform (13) and be locked and positioned.

2. The 3Y steel sheet pile welding forming device according to claim 1, characterized in that: One push-pull quick clamp (1) for positioning the end of the Y-shaped steel sheet pile (3) is installed at each end of the positioning boss (5).

3. The 3Y steel sheet pile welding forming apparatus according to claim 1, characterized by: The three-jaw chuck (7) rotates by an angle of 120 degrees each time, and rotates three times to complete the welding of three ship-shaped welds.

4. The 3Y steel sheet pile welding forming apparatus according to claim 1, characterized by: The output shaft of the motor (8) is directly or indirectly connected with the three-jaw chuck (7).

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