Automatic welding device for high-pressure oil pipe robot

Abstract

The utility model relates to the technical field of welding devices, in particular to an automatic welding device for a high-pressure oil pipe robot, which comprises a base, three grooves are arranged on the base, a reciprocating screw rod and a bidirectional screw rod are respectively and rotatably connected in two of the grooves, an air bag is fixedly connected in the other groove, and the air bag is fixedly connected in the other groove. The reciprocating lead screw is in threaded connection with a supporting base, a fixing ring is arranged on one side of the supporting base, and a laser welding head is arranged on the fixing ring. The two-way lead screw is in threaded connection with two clamping seats, and each clamping seat is provided with a round hole. According to the automatic welding device, adjustment can be conveniently conducted according to the actual size of the high-pressure oil pipe, the high-pressure oil pipe is clamped, the position of the laser welding head is adjusted, the high-pressure oil pipe can be rapidly welded, the limitation is small when the automatic welding device is used, and use of the automatic welding device is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to an automated welding device for a high-pressure oil pipe robot. Background Technology

[0002] With the continuous development of society and the continuous progress of science and technology, the technology related to welding equipment is also constantly improving. High-pressure oil pipe robots are usually processed by automated welding equipment, which can be used to weld high-pressure oil pipes on high-pressure oil pipe robots.

[0003] Currently, when using automated welding equipment to weld high-pressure oil pipes, it is impossible to adjust the equipment according to the actual size of the high-pressure oil pipe and perform rapid welding. The use of automated welding equipment has significant limitations, which is not conducive to its application. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: when using automated welding devices to weld high-pressure oil pipes, it is impossible to adjust the welding process according to the actual size of the high-pressure oil pipe and perform rapid welding. The automated welding devices have significant limitations in use and are not conducive to their application. Therefore, this invention proposes an automated welding device for high-pressure oil pipe robots.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automated welding device for a high-pressure oil pipe robot includes a base with three grooves. Two of the grooves are rotatably connected to a reciprocating lead screw and a bidirectional lead screw, respectively. An airbag is fixedly connected to the other groove. A support seat is threaded onto the reciprocating lead screw. A fixing ring is provided on one side of the support seat, and a laser welding head is provided on the fixing ring.

[0007] The bidirectional lead screw is threaded with two clamping seats, each of which has a circular hole and a clamping assembly. The clamping assembly includes multiple slide rods that are spring-loaded onto the clamping seats. One end of each slide rod is fixedly connected to multiple clamping plates. The clamping seats have multiple sealing cavities for the reciprocating movement of each slide rod. A sealing plate is fixedly connected inside each sealing cavity. The sealing plate is fixedly connected to the corresponding slide rod. The airbag is connected to the two clamping seats via two hoses. A compression assembly is provided on the base.

[0008] Preferably, the extrusion assembly includes a first hydraulic cylinder fixedly mounted on the base, the drive end of the first hydraulic cylinder being fixedly connected to a pressure plate, and each of the sealing cavities having an air hole on its inner wall that communicates with the corresponding hose.

[0009] Preferably, a second hydraulic cylinder is fixedly connected to the support base, and a bending rod is fixedly connected to the drive end of the second hydraulic cylinder, and the bending rod and the fixing ring are fixedly connected.

[0010] Preferably, the fixed ring has a rotating cavity, in which a gear and a gear ring are rotatably connected, the gear and the gear ring meshing together, a first motor is fixedly connected to the fixed ring, the drive end of the first motor is fixedly connected to the gear, and an electromagnetic brake is installed on the drive end of the first motor.

[0011] Preferably, an electric push rod is fixedly connected to the inner surface of the toothed ring, and the drive end of the electric push rod is fixedly connected to the laser welding head.

[0012] Preferably, two second motors are fixedly mounted on the base, and the drive ends of the two second motors are respectively fixedly connected to the reciprocating lead screw and the bidirectional lead screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Two high-pressure oil pipes are inserted through the through holes on the two clamping seats. Then, the first hydraulic cylinder drives the pressure plate to move vertically downward and squeeze the air bladder. Gas is delivered to the interior of each sealing cavity. Each clamping plate moves towards the center of the corresponding through hole until the rubber surface of each clamping plate is in close contact with the side surface of the corresponding high-pressure oil pipe, thus clamping the two high-pressure oil pipes. Then, the second motor drives the bidirectional lead screw to rotate until the end faces of the two high-pressure oil pipes are in close contact. At this time, the fixing ring is placed on the outside of the connection between the two high-pressure oil pipes. The first motor drives the gear to rotate, and the laser welding head rotates around the connection between the two high-pressure oil pipes. The laser welding head works simultaneously to weld the two high-pressure oil pipes. It is convenient to adjust according to the actual size of the high-pressure oil pipes, clamp the high-pressure oil pipes, and adjust the position of the laser welding head. It can quickly weld the high-pressure oil pipes. The automated welding device has fewer limitations in use and is beneficial to the use of automated welding devices. Attached Figure Description

[0015] Figure 1 This is a front structural diagram of an automated welding device for a high-pressure oil pipe robot proposed in this utility model.

[0016] Figure 2 This is a top view of an automated welding device for a high-pressure oil pipe robot proposed in this utility model.

[0017] Figure 3 This is a side view of an automated welding device for a high-pressure oil pipe robot proposed in this utility model.

[0018] Figure 4 This is a partial internal structural diagram of the front of the clamping seat in this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the fixing ring in this utility model.

[0020] In the diagram: 1. Base, 2. Clamping seat, 3. Hoses, 4. Clamping plate, 5. Fixing ring, 6. Second hydraulic cylinder, 7. Support seat, 8. First hydraulic cylinder, 9. Bidirectional lead screw, 10. Reciprocating lead screw, 11. Pressure plate, 12. Airbag, 13. Gear ring, 14. Spring, 15. Slide rod, 16. Laser welding head, 17. Sealing cavity, 18. Sealing plate, 19. Electric push rod, 20. Gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-5 An automated welding device for a high-pressure oil pipe robot includes a base 1 with three grooves. Two grooves are rotatably connected to a reciprocating lead screw 10 and a bidirectional lead screw 9, respectively. An airbag 12 is fixedly connected to the other groove. A support seat 7 is threaded onto the reciprocating lead screw 10. A fixing ring 5 is provided on one side of the support seat 7, and a laser welding head 16 is provided on the fixing ring 5. Two clamping seats 2 are threaded onto the bidirectional lead screw 9. Each clamping seat 2 has a round hole and a clamping assembly. The clamping assembly includes multiple slide rods 15 mounted on the clamping seat 2 by springs 14. Multiple clamping plates 4 are fixedly connected to one end of each slide rod 15. Multiple sealing cavities 17 are provided on the clamping seat 2 for the reciprocating movement of each slide rod 15. A sealing plate 18 is fixedly connected inside each sealing cavity 17. The sealing plate 18 is fixedly connected to the corresponding slide rod 15. The airbag 12 is connected to the two clamping seats 2 by two hoses 3. A compression assembly is provided on the base 1.

[0024] The extrusion assembly includes a first hydraulic cylinder 8 fixedly mounted on the base 1. The drive end of the first hydraulic cylinder 8 is fixedly connected to a pressure plate 11. Each sealing cavity 17 has an air hole on its inner wall that communicates with the corresponding hose 3. The first hydraulic cylinder 8 drives the pressure plate 11 to move vertically downward. During the downward movement of the pressure plate 11, the air bladder 12 is extruded. The gas inside the air bladder 12 is then transported to the two clamping seats 2 through the two hoses 3 respectively. The gas is also transported to the interior of each sealing cavity 17 through the air holes. A second hydraulic cylinder 6 is fixedly connected to the support seat 7. The drive end of the second hydraulic cylinder 6 is fixedly connected to a bending rod. The bending rod and the fixing ring 5 are fixedly connected. The second hydraulic cylinder 6 drives the bending rod to move vertically, thereby adjusting the vertical height of the fixing ring 5 according to the actual usage.

[0025] The fixed ring 5 has a rotating cavity, in which a gear 20 and a gear ring 13 are rotatably connected. The gear 20 and the gear ring 13 are meshed together. A first motor is fixedly connected to the fixed ring 5. The drive end of the first motor is fixedly connected to the gear 20. An electromagnetic brake is installed on the drive end of the first motor. The first motor drives the gear 20 to rotate. Under the transmission action of the gear ring 13, the laser welding head 16 will rotate around the connection of the two high-pressure oil pipes. The laser welding head 16 works simultaneously, which can perform welding on the two high-pressure oil pipes. The electromagnetic brake can effectively prevent the drive end of the first motor from rotating arbitrarily.

[0026] An electric push rod 19 is fixedly connected to the inner surface of the toothed ring 13. The drive end of the electric push rod 19 is fixedly connected to the laser welding head 16. The electric push rod 19 drives the laser welding head 16 to move, which allows the laser welding head 16 to move towards the outside of the connection between the two high-pressure oil pipes. Two second motors are fixedly installed on the base 1. The drive ends of the two second motors are fixedly connected to the reciprocating lead screw 10 and the bidirectional lead screw 9, respectively. The second motors drive the reciprocating lead screw 10 to rotate, and the support seat 7 will slide along the groove. Thus, the horizontal position of the fixing ring 5 can be adjusted according to the actual use.

[0027] In this invention, two high-pressure oil pipes (not shown) are respectively inserted through the through holes on two clamping seats 2 and positioned between multiple clamping plates 4. Then, the first hydraulic cylinder 8 drives the pressure plate 11 to move vertically downward. During the downward movement of the pressure plate 11, the air bag 12 is squeezed. The gas inside the air bag 12 is then delivered to the two clamping seats 2 through two hoses 3. The gas is delivered to the interior of each sealing cavity 17. Due to the good sealing performance between each sealing plate 18 and the inner wall of the corresponding sealing cavity 17, each sealing plate 18 slides inside the corresponding sealing cavity 17, thereby driving each sliding rod 15. Simultaneously, relative sliding occurs with the corresponding clamping seat 2. Since the two ends of each spring 14 are fixedly connected to the slide rod 15 and the corresponding clamping seat 2 respectively, the spring 14 deforms, and each clamping plate 4 moves towards the center of the corresponding through hole until the rubber surface of each clamping plate 4 is in close contact with the side surface of the corresponding high-pressure oil pipe, thereby clamping the two high-pressure oil pipes. Then, the second motor drives the bidirectional lead screw 9 to rotate, and the two clamping seats 2 move along the bidirectional lead screw 9 at the same time and slide relative to the groove. The distance between the two clamping seats 2 decreases until the end faces of the two high-pressure oil pipes are in close contact.

[0028] At this time, the fixing ring 5 is fitted on the outside of the connection between the two high-pressure oil pipes. Then, the electric push rod 19 drives the laser welding head 16 to move, so that the laser welding head 16 moves to the outside of the connection between the two high-pressure oil pipes. Then, the first motor drives the gear 20 to rotate. Under the transmission action of the gear ring 13, the laser welding head 16 will rotate around the connection between the two high-pressure oil pipes. The laser welding head 16 works at the same time, which can weld the two high-pressure oil pipes. It is convenient to adjust according to the actual size of the high-pressure oil pipes, clamp the high-pressure oil pipes, and adjust the position of the laser welding head 16. It can quickly weld the high-pressure oil pipes. The limitations of the automated welding device are small, which is conducive to the use of automated welding devices.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automated welding device for a high-pressure oil pipe robot, comprising a base (1), characterized in that, The base (1) has three grooves, two of which are rotatably connected to a reciprocating screw (10) and a bidirectional screw (9), respectively, and an airbag (12) is fixedly connected to the other groove. A support seat (7) is threaded onto the reciprocating screw (10), and a fixing ring (5) is provided on one side of the support seat (7). A laser welding head (16) is provided on the fixing ring (5). The bidirectional lead screw (9) is threaded with two clamping seats (2). Each clamping seat (2) has a round hole and a clamping assembly. The clamping assembly includes multiple slide rods (15) mounted on the clamping seat (2) by springs (14). One end of each slide rod (15) is fixedly connected to multiple clamping plates (4). The clamping seat (2) has multiple sealing cavities (17) for each slide rod (15) to move back and forth. Each sealing cavity (17) is fixedly connected to a sealing plate (18). The sealing plate (18) is fixedly connected to the corresponding slide rod (15). The airbag (12) is connected to the two clamping seats (2) through two hoses (3). The base (1) is equipped with a compression assembly.

2. The automated welding device for a high-pressure oil pipe robot according to claim 1, characterized in that, The extrusion assembly includes a first hydraulic cylinder (8) fixedly installed on the base (1), and a pressure plate (11) is fixedly connected to the drive end of the first hydraulic cylinder (8). Each of the sealing cavities (17) has an air hole on its inner wall that communicates with the corresponding hose (3).

3. The automated welding device for a high-pressure oil pipe robot according to claim 1, characterized in that, A second hydraulic cylinder (6) is fixedly connected to the support base (7), and a bending rod is fixedly connected to the drive end of the second hydraulic cylinder (6). The bending rod and the fixing ring (5) are fixedly connected.

4. The automated welding device for a high-pressure oil pipe robot according to claim 1, characterized in that, The fixed ring (5) has a rotating cavity, in which a gear (20) and a gear ring (13) are rotatably connected. The gear (20) and the gear ring (13) are meshed together. A first motor is fixedly connected to the fixed ring (5). The drive end of the first motor is fixedly connected to the gear (20). An electromagnetic brake is installed on the drive end of the first motor.

5. The automated welding device for a high-pressure oil pipe robot according to claim 4, characterized in that, An electric push rod (19) is fixedly connected to the inner surface of the toothed ring (13), and the driving end of the electric push rod (19) is fixedly connected to the laser welding head (16).

6. The automated welding device for a high-pressure oil pipe robot according to claim 1, characterized in that, Two second motors are fixedly installed on the base (1), and the drive ends of the two second motors are fixedly connected to the reciprocating lead screw (10) and the bidirectional lead screw (9), respectively.

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