Welding device for steel pipe production and machining

Abstract

The utility model relates to the technical field of steel pipe machining, in particular to a welding device for steel pipe production and machining, which comprises a first positioning clamp mechanism, a second positioning clamp mechanism, a laser welding mechanism, a positioning plate mechanism and a transverse feeding mechanism. The positioning plate mechanism and the transverse feeding mechanism achieve positioning of the welding face of the steel pipe, the laser welding mechanism achieves rotation of a laser welding head, and all-directional welding of the steel pipe is achieved. The steel pipe is positioned and fixed through a machine, meanwhile, the welding mechanism automatically rotates to weld the steel pipe, the production rate is improved, and the welding machining production quality of the steel pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing, in particular to a welding device used for steel pipe production and processing. Background Art

[0002] The existing Chinese utility model patent with an application date of 2023.06.20, an authorization announcement date of 2023.11.21, and an authorization announcement number of CN220050707U proposes a steel pipe processing and welding clamping device, which uses a V-clamp distributed in a linear array to locate the axial position of two steel pipes, ensuring that the axial center lines of the two steel pipes are collinear, and a bolt and nut mechanism fixedly installed on the V-clamp to fix the position of the steel pipe in the V-clamp. In this technical solution, it is necessary to manually tighten each bolt to fix the steel pipe in the V-clamp, and manually rotate the handwheel to drive the steel pipe to rotate to achieve multi-angle rotary welding. Manual operation has low production efficiency and is difficult to guarantee quality. To this end, a welding device for steel pipe production and processing is proposed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a device that can position and fix steel pipes by a machine, and simultaneously rotate the welding mechanism automatically to weld the steel pipes without the need for human control of the welding, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding device for steel pipe production and processing, comprising a positioning clamp mechanism 1 and a positioning clamp mechanism 2 arranged linearly on the same horizontal plane as the positioning clamp mechanism 1, the positioning clamp mechanism 1 and the positioning clamp mechanism 2 comprising the same horizontal plate 1, vertical plate, horizontal plate 2, cylinder 1, lower positioning clamp, and telescopic rod 1, the connecting plates of the positioning clamp mechanism 1 and the positioning clamp mechanism 2 are supported by columns 1 and 3 respectively arranged on the lower surface of the connecting plate, the upper end surface of the connecting plate is fixedly mounted with a horizontal plate 1, the upper end surface of the horizontal plate 1 is fixedly mounted with at least two lower positioning clamps, the cross section of the lower positioning clamp is V-shaped and is located on the horizontal plate 1 The upper and lower positioning clamps are linearly and evenly distributed in the horizontal direction, and the steel pipe is placed in the lower positioning clamp. The side of the connecting plate is fixedly installed with the vertical plate, and the upper end surface of the vertical plate is fixedly installed with the horizontal plate 2; it also includes an upper positioning clamp and a laser welding mechanism for welding steel pipes. The upper positioning clamp is the same in the positioning clamp mechanism 1 and the positioning clamp mechanism 2. The upper positioning clamp is installed directly above the lower positioning clamp. The upper positioning clamps are linearly and evenly distributed on the same plane. The upper positioning clamps and the lower positioning clamps are staggered in the horizontal direction. The number of upper positioning clamps and the lower positioning clamps is the same. The upper end surface of the upper positioning clamp is fixedly connected to the telescopic rod 1, and the other end of the telescopic rod 1 is fixedly connected to the cylinder 1, and the cylinder 1 is fixedly installed on the top surface of the horizontal plate 2.

[0005] Preferably, the laser welding mechanism is fixedly installed between positioning clamp mechanism 1 and positioning clamp mechanism 2, and the laser welding mechanism includes a support plate, the upper end face of the support plate is fixedly connected to the outer ring of the bearing, the inner ring of the bearing is fixedly connected to the roller, and a gear 1 is fixedly installed on the outer cylindrical surface of the roller, and the gear 1 is engaged with the gear 2 installed on the motor, and the motor is fixedly installed on the side of the support plate, and the central axis of the roller is collinear with the central axis of the steel pipe. A laser welding head is provided in the radial direction of the roller, and the laser welding head is fixedly installed on the inner side surface of the roller, and a through-plate hole is opened on the roller directly below the laser welding head.

[0006] Preferably, it also includes a positioning plate mechanism, which is fixedly installed between the two support plates, and the positioning plate mechanism includes column two, a track groove is opened on the side surface of column two, and the positioning plate is slidably connected to column two through the guide rail on the side, and the positioning plate is located directly below the through-plate hole and can enter the interior of the roller through the through-plate hole, the positioning surface of the positioning plate is parallel to the side surface of the lower positioning clamp and the center line of the laser welding head passes through the positioning surface, the lower end surface of the positioning plate is fixedly connected to one end of the telescopic rod two, and the other end of the telescopic rod two is fixedly connected to the cylinder two.

[0007] Preferably, it also includes a transverse feeding mechanism, which includes a guide rail plate, the upper end surface of the guide rail plate is provided with a guide rail, the lower end surface of the column three is provided with a track groove, the column three is slidingly connected to the guide rail plate, the screw rod passes through the thread hole on the column three and is threadedly connected to the column three, one end of the screw rod is fixedly connected to the rotating shaft of the servo motor, and the servo motor is fixedly installed on the upper end surface of the guide rail plate.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. The upper positioning clamp can move freely up and down under the action of the cylinder and telescopic rod to locate and fix the position of the steel pipe.

[0010] 2. The laser welding head rotates with the drum to achieve all-round welding of the steel pipe.

[0011] 3. The positioning plate mechanism locates the contact surface of the two steel pipes, i.e. the weld seam, and the transverse feed mechanism can ensure that the contact surface of the two steel pipes is tight, thereby reducing the generation of gaps or other defects during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the overall structure of the utility model;

[0013] Figure 2 Structural diagram of laser welding mechanism;

[0014] Figure 3Side view of the laser welding mechanism and positioning plate mechanism;

[0015] Figure 4 Schematic diagram of the positioning plate mechanism.

[0016] In the figure: column 1, horizontal plate 2, vertical plate 3, horizontal plate 2, upper positioning clamp 5, cylinder 1, lower positioning clamp 7, steel pipe 8, guide rail 9, screw rod 10, servo motor 11, guide rail plate 12, laser welding mechanism 13, positioning plate mechanism 14, telescopic rod 15, connecting plate 16, positioning clamp mechanism 17, positioning clamp mechanism 2 18, column 3 19, horizontal feed mechanism 20, motor 1301, bearing outer ring 1302, bearing inner ring 1303, laser welding head 1304, through-plate hole 1305, support plate 1306, gear 1 1307, gear 2 1308, roller 1309, cylinder 2 1401, column 2 1402, positioning plate 1403, track groove 1404, telescopic rod 2 1405, positioning surface 1406. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1 to 4The present invention provides a technical solution: a welding device for the production and processing of steel pipes, comprising a positioning clamp mechanism 17 and a positioning clamp mechanism 2 18 arranged linearly on the same horizontal plane as the positioning clamp mechanism 17, which means that the same components of the positioning clamp mechanism 17 and the positioning clamp mechanism 2 18 are arranged linearly on the same horizontal plane. The positioning clamp mechanism 17 and the positioning clamp mechanism 2 18 both include the same horizontal plate 1 2, vertical plate 3, horizontal plate 2 4, cylinder 1 6, upper positioning clamp 5, lower positioning clamp 7, and telescopic rod 15. The connecting plates 16 of the positioning clamp mechanism 17 and the positioning clamp mechanism 2 18 are supported by the vertical column 1 and the vertical column 3 19 respectively provided on the lower surface of the connecting plate 16. The upper end surface of the connecting plate 16 is fixedly mounted with the horizontal plate 1 2, and the upper end surface of the horizontal plate 2 is fixedly mounted with at least two lower positioning clamps 7. The cross section of the lower positioning clamp 7 is V-shaped and is linearly and evenly distributed in the transverse direction of the horizontal plate 2. The steel pipe 8 is placed on the lower surface. Inside the positioning clamp 7, the side of the connecting plate 16 is fixedly mounted to the vertical plate 3, and the upper end surface of the vertical plate 3 is fixedly mounted to the horizontal plate 2 4. The upper positioning clamp 5 is mounted directly above the lower positioning clamp 7, and the upper positioning clamps are linearly and evenly distributed on the same plane. The upper positioning clamps 5 and the lower positioning clamp 7 are staggered in the horizontal direction to ensure that the upper positioning clamp 5 does not interfere with the lower positioning clamp 7 when moving downward. The upper positioning clamps 5 and the lower positioning clamp 7 are the same in number. The upper end surface of the upper positioning clamp 5 is fixedly connected to the telescopic rod 15, and the other end of the telescopic rod 15 is fixedly connected to the cylinder 16, which is fixedly mounted to the top surface of the horizontal plate 2 4. The cylinder 16, the telescopic rod 15, and the control system for controlling the telescopic rod 15 constitute a telescopic structure driven by a cylinder. This is common knowledge in the operation of existing cylinders. In this application, the CUJ-XB24 series cylinder can be selected. In addition, existing technologies such as telescopic hydraulic cylinders or ball screw systems can also be used to achieve the up and down controlled movement of the upper positioning clamp 5.

[0019] The laser welding mechanism 13 is fixedly mounted between the first positioning clamp mechanism 17 and the second positioning clamp mechanism 18. The laser welding mechanism 13 includes a support plate 1306, the upper end surface of which is fixedly connected to the outer ring 1302 of the bearing. The inner ring 1303 of the bearing is fixedly connected to the roller 1309. The outer circumferential surface of the roller 1309 is fixedly mounted with a gear 1307. The gear 1307 meshes with the second gear 1308 mounted on the motor 1301. The motor 1301 is fixedly mounted on the side of the support plate 1306. The central axis of the roller 1309 is collinear with the central axis of the steel pipe 8. A laser welding head 1304 is provided radially on the roller 1309. The laser welding head 1304 is fixedly mounted on the inner side of the roller 1309. A through-plate hole 1305 is provided in the roller 1309 directly below the laser welding head 1304. The laser welding mechanism 1330 also includes a control unit for implementing the forward and reverse rotation cycle of the motor 1301. This is a conventional technology for motor control and will not be described in detail.

[0020] It also includes a positioning plate mechanism 14, which is fixedly installed between the two support plates 1306. The positioning plate mechanism 14 includes a second column 1402, and a track groove 1404 is opened on the side of the second column 1402. The positioning plate 1403 is slidably connected to the second column 1402 through the side guide rail. The positioning plate 1403 is located directly below the through-plate hole 1305 and can enter the interior of the roller 1309 through the through-plate hole 1305. The positioning surface 1406 of the positioning plate 1403 is parallel to the side of the lower positioning clamp 7 and the center line of the laser welding head 1304 passes through the positioning surface 1406. This setting determines that after the steel pipe 8 is positioned and installed, the laser emitted by the laser welding head 1304 is irradiated at the contact point of the two steel pipes, that is, the position determined by the positioning surface 1406. The lower end face of the positioning plate 1403 is fixedly connected to one end of the second telescopic rod 1405, and the other end of the second telescopic rod 1405 is fixedly connected to the second cylinder 1401. The cylinder 2 1401, the telescopic rod 2 1405 and the control system for controlling the telescopic rod 2 1405 constitute a telescopic structure driven by a cylinder. This is common knowledge about the working of existing cylinders. In this application, the CUJ-XB24 series cylinder can be selected. In addition, existing technologies such as telescopic hydraulic cylinders or ball screw systems can be used to realize the up and down control movement of the upper positioning plate 1403.

[0021] The apparatus further includes a transverse feed mechanism 20, which comprises a guide plate 12, the upper end surface of which is provided with a guide rail 9, and a lower end surface of a third column 19 having a track groove formed therein. The third column 19 is slidably connected to the guide plate 12, and a screw rod 10 is threadedly connected to the third column 19 through a threaded hole in the third column 19. One end of the screw rod 10 is fixedly connected to the rotating shaft of a servo motor 11, which is fixedly mounted on the upper end surface of the guide plate 12. The servo motor 11, the screw rod 10, and the control system for controlling the screw rod 10 constitute a quantitative movement mechanism driven by a servo motor. This is common knowledge regarding the operation of existing servo motors. In this application, a servo motor model D180M-O250030C-E can be selected.

[0022] When using this device, the positioning plate mechanism 14 is controlled to make the positioning plate 1403 rise and pass through the through-plate hole 1305 into the roller 1309 to reach the set position, and the steel pipe 8 is placed in the lower positioning clamp 7 of the positioning clamp mechanism 1 17 and the positioning clamp mechanism 2 18 respectively, and one end of the steel pipe 8 is respectively pressed against the two side surfaces of the positioning plate 1403. At this time, the upper positioning clamp 5 is controlled to move downward to the set position to fix the steel pipe 8, and then the positioning plate mechanism 14 is controlled again to make the positioning plate 1403 fall and reset, and then the transverse feeding mechanism 20 is controlled to make the steel pipe 8 fixed on the positioning clamp mechanism 2 18 move to the positioning clamp mechanism 1 17 to the set position, so that the end face of the steel pipe 8 is in close contact, and then the laser welding mechanism 13 is controlled to make the laser welding head 1304 start working, and after the roller 1309 rotates the set number of times in the forward-reverse cycle, the laser welding mechanism 13 is controlled to stop moving, and finally the transverse feeding mechanism 20 is controlled to reset, and the upper positioning clamp 5 is controlled to rise and reset, and the welded steel pipe is taken out to complete a steel pipe welding process.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for steel pipe production and processing, comprising a positioning clamp mechanism (17) and a positioning clamp mechanism (18) arranged linearly on the same horizontal plane as the positioning clamp mechanism (17), wherein the positioning clamp mechanism (17) and the positioning clamp mechanism (18) comprise the same horizontal plate (2), vertical plate (3), horizontal plate (4), cylinder (6), lower positioning clamp (7), and telescopic rod (15), and the connecting plates (16) of the positioning clamp mechanism (17) and the positioning clamp mechanism (18) are respectively arranged on the horizontal plane. The connecting plate (16) is supported by the column one (1) and the column three (19) on the lower surface. The upper end surface of the connecting plate (16) is fixedly mounted with a transverse plate one (2). The upper end surface of the transverse plate one (2) is fixedly mounted with at least two lower positioning clamps (7). The cross section of the lower positioning clamps (7) is V-shaped and is linearly and evenly distributed in the transverse direction of the transverse plate one (2). The steel pipe (8) is placed in the lower positioning clamps (7). The side surface of the connecting plate (16) is fixedly mounted with a vertical plate (3). The upper end surface of the vertical plate (3) is fixedly mounted with a transverse plate two (4). Its characteristics are: It also includes an upper positioning clamp (5) and a laser welding mechanism (13) for welding the steel pipe (8). The upper positioning clamp (5) is the same in the positioning clamp mechanism 1 (17) and the positioning clamp mechanism 2 (18). The upper positioning clamp (5) is installed directly above the lower positioning clamp (7), and the upper positioning clamps (5) are linearly and evenly distributed on the same plane. The upper positioning clamp (5) and the lower positioning clamp (7) are staggered in the horizontal direction. The number of the upper positioning clamps (5) and the lower positioning clamps (7) is the same. The upper end face of the upper positioning clamp (5) is fixedly connected to the telescopic rod 1 (15), and the other end of the telescopic rod 1 (15) is fixedly connected to the cylinder 1 (6). The cylinder 1 (6) is fixedly installed on the top surface of the horizontal plate 2 (4).

2. The welding device for steel pipe production and processing according to claim 1, characterized in that: The laser welding mechanism (13) is fixedly installed between the first positioning clamp mechanism (17) and the second positioning clamp mechanism (18), and the laser welding mechanism (13) includes a support plate (1306). The upper end surface of the support plate (1306) is fixedly connected to the outer ring of the bearing (1302), and the inner ring of the bearing (1303) is fixedly connected to the roller (1309). The outer circumferential surface of the roller (1309) is fixedly installed with a gear (1307). The gear (1307) is connected to the motor (1301). The gear 2 (1308) on the roller (1309) is engaged with each other, the motor (1301) is fixedly installed on the side of the support plate (1306), the central axis of the roller (1309) is colinear with the central axis of the steel pipe (8), and a laser welding head (1304) is provided in the radial direction of the roller (1309), and the laser welding head (1304) is fixedly installed on the inner side of the roller (1309), and a through-plate hole (1305) is opened on the roller (1309) directly below the laser welding head (1304).

3. The welding device for steel pipe production and processing according to claim 1, characterized in that: The present invention also includes a positioning plate mechanism (14), which is fixedly installed between the two support plates (1306), and the positioning plate mechanism (14) includes a second column (1402), a track groove (1404) is provided on the side of the second column (1402), and a positioning plate (1403) is slidably connected to the second column (1402) through the guide rail on the side, and the positioning plate (1403) is located directly below the through-plate hole (1305) and can be passed through. Enter the interior of the roller (1309) through the through-plate hole (1305), the positioning surface (1406) of the positioning plate (1403) is parallel to the side of the lower positioning clamp (7) and the center line of the laser welding head (1304) passes through the positioning surface (1406), the lower end surface of the positioning plate (1403) is fixedly connected to one end of the telescopic rod 2 (1405), and the other end of the telescopic rod 2 (1405) is fixedly connected to the cylinder 2 (1401).

4. The welding device for steel pipe production and processing according to claim 3, characterized in that: The invention also includes a transverse feeding mechanism (20), wherein the transverse feeding mechanism (20) includes a guide rail plate (12), the upper end surface of the guide rail plate (12) is provided with a guide rail (9), the lower end surface of the column three (19) is provided with a track groove, the column three (19) is slidably connected to the guide rail plate (12), the screw rod (10) passes through the thread hole on the column three (19) and is threadedly connected to the column three (19), one end of the screw rod (10) is fixedly connected to the rotating shaft of the servo motor (11), and the servo motor (11) is fixedly installed on the upper end surface of the guide rail plate (12).

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