Automatic seam welder for narrow lap joint of strip steel
By designing a rolling column system with sliders and grooves, the problem that the existing strip steel narrow overlapping automatic seam welding machine cannot be replaced, the processing capacity of steel pipes of different diameters is realized, and the practicality of the equipment is improved.
Patent Information
- Application Number
- CN202520530201.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The curled columns of existing strip steel narrow overlap automatic seam welding machines cannot be replaced and the diameter is fixed, resulting in only steel pipes with fixed diameter specifications, which are poor in practicality.
A rewinding column system with multiple sliders and grooves is designed. The reciprocating screw is driven by a servo motor to rotate, the slider slides in the slide groove, and the clamp shaft is stuck with the groove, so as to achieve the fixing and replacement of the rewinding column.
The flexible replacement of curled columns is realized, so that the strip steel narrow overlap automatic seam welding machine can process steel pipes of different diameters and specifications, improving the practicality and convenience of use of the equipment.
Smart Images
Figure CN222806353U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel pipe processing, in particular to an automatic seam welding machine for narrow overlap of steel strips. Background Art
[0002] With the continuous development of society and the continuous advancement of science and technology, the technologies related to steel pipe processing are also constantly improving. The strip steel is formed into steel pipes through rolling and seam welding. The automatic seam welding machine is a steel pipe seam welding machine with the function of automatic rolling and bending narrow lap strip steel.
[0003] The patent document with publication number "CN218487589U" discloses an automatic seam welding machine for narrow lap joints of steel strips, including: a machine body and a welding device, a sliding groove is provided on the side of the placement plate close to the bidirectional threaded rod, a positioning plate is threadedly connected to the surface of the bidirectional threaded rod, and a square groove is provided in the middle of the placement plate close to the lower bending block.
[0004] Although the above patent document solves the problem that the surface of the bending column becomes rough, affecting the pipeline seam welding and forming effects, and impurities are difficult to clean, it still has the following disadvantages: the bending column cannot be replaced, and the diameter of the bending column is a fixed value, which results in the automatic seam welding machine for narrow lap steel strips only being able to process steel pipes with fixed diameter specifications. The practicality of the automatic seam welding machine for narrow lap steel strips is poor, which is not conducive to the use of the automatic seam welding machine for narrow lap steel strips. Utility Model Content
[0005] The purpose of the utility model is to solve the following shortcomings in the prior art: the bending column cannot be replaced, the diameter of the bending column is a fixed value, which leads to the automatic seam welding machine for narrow lap steel strip can only process steel pipes with fixed diameter specifications, the practicality of the automatic seam welding machine for narrow lap steel strip is poor, which is not conducive to the use of the automatic seam welding machine for narrow lap steel strip, and a proposed automatic seam welding machine for narrow lap steel strip is provided.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] An automatic seam welding machine for narrow overlap of steel strips comprises an overlap platform, a protective cover is clamped on the back of the overlap platform, a circular groove is provided on one side surface of the overlap platform, a bending column is installed in the circular groove, a plurality of sliders are slidably connected to the back of the overlap platform, each of the sliders is connected to the bending column through a clamping shaft, and a plurality of grooves are provided on the surface of the bending column;
[0008] A plurality of sliding openings arranged in a circular array are provided on the inner wall of one side of the circular groove, and a sliding component is provided in each of the sliding openings. A rotating component is provided on the back of the overlapping platform, and the rotating component includes a reciprocating screw rod rotatably installed on the overlapping platform, and a fixed sleeve is threadedly connected to the reciprocating screw rod, and each of the sliding blocks is connected to the fixed sleeve via a first hinged rod.
[0009] Preferably, a servo motor is embedded in the interior of the lap joint, and a driving end of the servo motor is fixedly connected to the reciprocating screw rod.
[0010] Preferably, a plurality of slide grooves for connecting the sliding blocks are provided on the back side of the overlapping platform, and a circular hole communicating with the circular groove is provided on an inner wall of one side of each slide groove.
[0011] Preferably, each of the sliding assemblies includes a moving block slidably mounted inside the sliding mouth, a guide rod is fixedly connected to the inside of the sliding mouth, the moving block and the guide rod are slidably connected, and each of the moving blocks is connected to the fixed sleeve via a second hinged rod.
[0012] Preferably, a fixing ring is sleeved on the outer side of the bending column, a circular ring is connected to the inner thread of the fixing ring, and a leather brush is fixedly connected to the inner wall of the circular ring.
[0013] Preferably, a hydraulic cylinder is fixedly connected to the back of each of the lap joints, a driving end of the hydraulic cylinder is fixedly connected to an annular plate, each of the moving blocks is slidably connected to a positioning rod, one end of each of the positioning rods is slidably connected to the annular plate, and a slot for connecting the positioning rod is provided on one side surface of the fixed ring.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] One end of the bending column is placed in the circular groove, and the servo motor drives the reciprocating screw to rotate. The inclination angles of multiple first hinged rods change at the same time, and each clamping shaft slides in the corresponding slide groove until one end of each clamping shaft is clamped with the corresponding groove, so that the bending column can be firmly fixed. The bending column can be replaced according to actual usage, so that the automatic seam welding machine for narrow lap joints of steel strips can process steel pipes of different diameters. The practicality of the automatic seam welding machine for narrow lap joints of steel strips is good, which is conducive to the use of the automatic seam welding machine for narrow lap joints of steel strips. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front structural schematic diagram of an automatic seam welding machine for narrow overlap of steel strips proposed by the utility model;
[0017] Figure 2 It is a schematic diagram of the partial structure of the front side of the rolled bending column and the fixing ring in the utility model;
[0018] Figure 3 It is a partial three-dimensional structural schematic diagram of the annular plate and the reciprocating screw rod in the utility model;
[0019] Figure 4 It is a front three-dimensional structural schematic diagram of the annular plate and the hydraulic cylinder in the utility model.
[0020] In the figure: 1 a lap joint, 2 a protective cover, 3 a fixing ring, 4 a bending column, 5 a circular ring, 6 a positioning rod, 7 a guide rod, 8 a circular groove, 9 a clamping shaft, 10 a moving block, 11 an annular plate, 12 a reciprocating screw rod, 13 a first articulated rod, 14 a sliding block, 15 a second articulated rod, 16 a fixing sleeve, 17 a sliding port, and 18 a hydraulic cylinder. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.
[0023] Reference Figure 1-Figure 4 A steel strip narrow overlap automatic seam welding machine comprises a machine body, a welding device and a overlap platform 1, a protective cover 2 is clamped on the back of the overlap platform 1, a circular groove 8 is provided on one side surface of the overlap platform 1, a bending column 4 is installed in the circular groove 8, a plurality of sliders 14 are slidably connected to the back of the overlap platform 1, each slider 14 is connected to the bending column 4 through a clamping shaft 9, a plurality of grooves are provided on the surface of the bending column 4, a plurality of sliding openings 17 arranged in a ring array are provided on the inner wall of one side of the circular groove 8, a sliding component is arranged in each sliding opening 17, a rotating component is arranged on the back of the overlap platform 1, the rotating component comprises a reciprocating screw rod 12 rotatably installed on the overlap platform 1, a fixing sleeve 16 is threadedly connected to the reciprocating screw rod 12, and each slider 14 is connected to the fixing sleeve 16 through a first hinge rod 13.
[0024] A servo motor is embedded inside the lap joint 1, and the driving end of the servo motor is fixedly connected to the reciprocating screw 12. The driving end of the servo motor is provided with an electromagnetic brake, which can effectively prevent the driving end from rotating at will. A plurality of slide grooves for connecting the slider 14 are provided on the back of the lap joint 1, and a circular hole connected to the circular groove 8 is provided on the inner wall of one side of each slide groove. Each sliding assembly includes a moving block 10 slidably installed inside the sliding mouth 17, and a guide rod 7 is fixedly connected inside the sliding mouth 17, and the moving block 10 and the guide rod 7 are slidably connected.
[0025] Each moving block 10 is connected to the fixed sleeve 16 through the second hinge rod 15. The servo motor drives the reciprocating screw 12 to rotate, and the fixed sleeve 16 will slide along the reciprocating screw 12. The inclination angles of the multiple first hinge rods 13 and the second hinge rods 15 change at the same time, and each slider 14 and the moving block 10 move at the same time. Since one end of each clamping shaft 9 is fixedly connected to the corresponding slider 14, each clamping shaft 9 will slide in the corresponding slide groove until one end of each clamping shaft 9 is clamped with the corresponding groove. A fixing ring 3 is provided on the outer side of the bending column 4, and a circular ring 5 is threadedly connected to the inner wall of the circular ring 5. When the leather brush is damaged due to long-term use, the circular ring 5 is rotated to make it threadedly connected to the fixing ring 3, so that the circular ring 5 and the fixing ring 3 can be disengaged to facilitate the replacement of the leather brush.
[0026] A hydraulic cylinder 18 is fixedly connected to the back of each lap joint 1, and a driving end of the hydraulic cylinder 18 is fixedly connected to the annular plate 11. The protective cover 2 is sleeved on the outer side of the annular plate 11. A positioning rod 6 is slidably connected to each moving block 10, and one end of each positioning rod 6 is slidably connected to the annular plate 11. A slot for connecting the positioning rod 6 is provided on one side surface of the fixed ring 3. Each positioning rod 6 cannot slide relative to the annular plate 11 along the direction of the reciprocating screw 12. The fixed ring 3 is manually pressed to prevent the fixed ring 3 from moving along the bending column 4. The hydraulic cylinder 18 drives the annular plate 11 to move along the reciprocating screw 12, and the distance between the annular plate 11 and the lap joint 1 is reduced. Each positioning rod 6 will simultaneously move relative to the corresponding moving block 10 until one end of each positioning rod 6 is engaged with the corresponding slot, so that the fixed ring 3 and the positioning rod 6 can be firmly connected together.
[0027] In the utility model, during installation, the fixing ring 3 is first sleeved on the outer side of the bending column 4, and the leather brush is fitted with the surface of the bending column 4, and then one end of the bending column 4 is placed in the circular groove 8, and then the servo motor drives the reciprocating screw rod 12 to rotate, and the fixing sleeve 16 will slide along the reciprocating screw rod 12. Since the two ends of each first hinged rod 13 are respectively hinged to the fixing sleeve 16 and the corresponding slider 14, and the two ends of each second hinged rod 15 are respectively hinged to the fixing sleeve 16 and the corresponding moving block 10, the inclination angles of multiple first hinged rods 13 and second hinged rods 15 change at the same time, and each slider 14 and moving block 10 move at the same time. Since one end of each card shaft 9 is fixedly connected to the corresponding slider 14, each card shaft 9 will slide in the corresponding slide groove until one end of each card shaft 9 is clamped with the corresponding groove. During the movement of each moving block 10 along the corresponding guide rod 7, each positioning rod 6 will slide relative to the annular plate 11, and each positioning rod 6 will be located directly behind each card groove after movement.
[0028] After that, manually press the fixing ring 3 to prevent the fixing ring 3 from moving along the bending column 4. The hydraulic cylinder 18 drives the annular plate 11 to move along the reciprocating screw rod 12, and the distance between the annular plate 11 and the lap platform 1 is reduced. Each positioning rod 6 will move relative to the corresponding moving block 10 at the same time until one end of each positioning rod 6 is engaged with the corresponding slot. The installation of the bending column 4 and the fixing ring 3 can be quickly completed, and the bending column 4 can be replaced according to actual usage, so that the automatic seam welding machine for narrow lap joints of steel strips can process steel pipes of different diameters. The automatic seam welding machine for narrow lap joints of steel strips has good practicability and is conducive to the use of the automatic seam welding machine for narrow lap joints of steel strips.
[0029] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.
[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An automatic seam welding machine for narrow overlap of steel strips, comprising an overlap table (1), characterized in that: A protective cover (2) is clamped on the back of the lap joint platform (1), a circular groove (8) is provided on one side surface of the lap joint platform (1), a bending column (4) is installed in the circular groove (8), a plurality of sliders (14) are slidably connected to the back of the lap joint platform (1), each of the sliders (14) is connected to the bending column (4) via a clamping shaft (9), and a plurality of grooves are provided on the surface of the bending column (4); A plurality of sliding openings (17) arranged in a circular array are provided on an inner wall of one side of the circular groove (8), and a sliding assembly is provided in each of the sliding openings (17). A rotating assembly is provided on the back of the bridging platform (1), and the rotating assembly comprises a reciprocating screw rod (12) rotatably mounted on the bridging platform (1), and a fixing sleeve (16) is threadedly connected to the reciprocating screw rod (12), and each of the sliding blocks (14) is connected to the fixing sleeve (16) via a first hinge rod (13).
2. The automatic seam welding machine for narrow overlap of steel strip according to claim 1, characterized in that: A servo motor is embedded inside the splicing platform (1), and a driving end of the servo motor is fixedly connected to the reciprocating screw rod (12).
3. The automatic seam welding machine for narrow overlap of steel strip according to claim 1, characterized in that: A plurality of slide grooves for connecting the sliding block (14) are provided on the back of the overlapping platform (1), and a circular hole communicating with the circular groove (8) is provided on the inner wall of one side of each slide groove.
4. The automatic seam welding machine for narrow overlap of steel strip according to claim 1, characterized in that: Each of the sliding assemblies comprises a moving block (10) slidably mounted inside the sliding opening (17); a guide rod (7) is fixedly connected inside the sliding opening (17); the moving block (10) and the guide rod (7) are slidably connected; and each of the moving blocks (10) is connected to the fixed sleeve (16) via a second hinge rod (15).
5. The automatic seam welding machine for narrow overlap of steel strip according to claim 4, characterized in that: The outer side of the bending column (4) is sleeved with a fixing ring (3), the fixing ring (3) is internally threadedly connected to a circular ring (5), and the inner wall of the circular ring (5) is fixedly connected to a leather brush.
6. The automatic seam welding machine for narrow overlap of steel strip according to claim 5, characterized in that: A hydraulic cylinder (18) is fixedly connected to the back of each of the bridging platforms (1), a driving end of the hydraulic cylinder (18) is fixedly connected to an annular plate (11), each of the moving blocks (10) is slidably connected to a positioning rod (6), one end of each of the positioning rods (6) is slidably connected to the annular plate (11), and a slot for connecting the positioning rod (6) is provided on one side surface of the fixing ring (3).