Welding aid for oil storage tanks

Abstract

This invention discloses a welding auxiliary device for oil storage tanks, applied to an automatic arc welding machine. It includes a mounting base, a support block, a turntable, a mounting groove, and two symmetrically arranged clamping rods. The support block is horizontally rotatably connected to the mounting base, and the turntable is vertically rotatably connected to the support block. The receiving openings of both are coaxially arranged. The mounting groove is located on the turntable for mounting the oil storage tank, which can extend into both receiving openings. The clamping rods are hinged to the inner wall of the second receiving opening at their middle section, and consist of a clamping section and a driving section with different weights. When the mounting groove is horizontal, the weight of the driving section causes the clamping rods to loosen. When the support block rotates the oil storage tank to a vertical position, the weight of the oil storage tank presses down on the receiving component of the driving section, causing the clamping component of the clamping section to automatically clamp the tank. This device achieves oil storage tank posture switching through the support block and turntable, and automatically clamps the tank after it reaches a vertical position using its own weight. It eliminates the need for manual operation of the clamping device, reduces clamping and positioning errors, and effectively improves the welding efficiency and accuracy of the oil storage tank.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to welding auxiliary devices for oil storage tanks. Background Technology

[0002] During the manufacturing process of oil storage tanks, the end caps on the perimeter wall and the end caps on the end caps need to be welded. During welding, the oil storage tank needs to be installed on a welding auxiliary device so that an automatic electric arc welding machine can weld the oil storage tank.

[0003] Existing welding auxiliary equipment is equipped with a fixed support frame used to support and position the oil storage tank. During welding, the oil storage tank is first placed horizontally on the support frame, and then fixed by a clamping device. After the end caps on the tank's perimeter wall are welded, the tank must be manually adjusted to a vertical position before being clamped and positioned again to weld the end caps. This process is cumbersome, inefficient, and the repeated clamping and positioning can easily cause deviations in the welding position, thus reducing the welding accuracy of the oil storage tank. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a welding auxiliary device for oil storage tanks, which can use the gravity of the oil storage tank to clamp and fix it, reducing the frequency of manual operation and improving welding efficiency.

[0005] According to an embodiment of the present invention, a welding auxiliary device for an oil storage tank is applied to an automatic arc welding machine, comprising a mounting base, a support block, a turntable, a mounting groove, and clamping rods. The support block is rotatably mounted on the mounting base, with its rotation axis extending horizontally. The support block has a first receiving opening. The turntable is rotatably mounted on the support block, with its rotation axis perpendicular to the rotation axis of the support block. The turntable has a second receiving opening, which is coaxial with the first receiving opening and extends along the rotation axis of the turntable. The first and second receiving openings are used to receive the oil storage tank. Two clamping rods are symmetrically arranged along the axis of the turntable on the inner wall of the second receiving opening. The clamping rods are hinged to the inner wall of the second receiving opening. When the support block rotates to make the rotation axis of the turntable vertical, the weight of the oil storage tank can drive the two clamping rods to clamp the oil storage tank.

[0006] It has at least the following beneficial effects: the support block, in conjunction with the turntable, enables the switching of the oil storage tank's posture; the linkage between the clamping rod and the support block enables automatic clamping of the oil storage tank after it is vertical; the oil storage tank presses down on the clamping rod to drive the clamping rod to clamp the oil storage tank, utilizing the oil storage tank's own gravity to achieve this, eliminating the need for manual operation of the clamping device, significantly reducing the frequency of manual operation, and avoiding multiple clamping and positioning deviations. Because the operation eliminates the need for manual intervention in the clamping process, the welding efficiency is significantly improved. The movement positions of the support block and the turntable can be predicted and adjusted, so welding can be performed at a predetermined position during the welding operation, eliminating the need to adjust the welding position and improving welding accuracy.

[0007] According to some embodiments of the present invention, a mounting groove is provided on the side of the turntable away from the support block. The mounting groove has a length direction extending along the rotation axis of the support block. The mounting groove is used to guide and install the oil storage tank, so that the oil storage tank can be inserted into the first receiving port and the second receiving port in sequence.

[0008] According to some embodiments of the present invention, the clamping rod is divided into a clamping section and a driving section with the hinge point as the dividing point. The clamping section is located near the mounting groove, and the driving section is located near the support block. The weight of the driving section is greater than the weight of the clamping section. A snap-fit ​​member is provided at the end of the clamping section, and a receiving member is provided at the end of the driving section. When the mounting groove is in a horizontal state, the driving section drives the receiving member to swing to the middle of the second receiving port due to its own weight. At the same time, the clamping section drives the snap-fit ​​member away from the mounting groove. When the support block rotates to make the length extension line of the mounting groove vertical, the length extension line of the oil tank is also in a vertical state. The oil tank can press down on the receiving member to make the driving section away from the second receiving port. At the same time, the clamping section drives the snap-fit ​​member to clamp the oil tank.

[0009] According to some embodiments of the present invention, a first elastic member is included, which is connected between the inner wall of the second receiving port and the driving segment, and the first elastic member is used to drive the driving segment to swing toward the center of the second receiving port.

[0010] According to some embodiments of the present invention, the snap-fit ​​component includes a contact block and a second elastic element. The contact block is connected to the end of the clamping section via the second elastic element, and the second elastic element is used to drive the contact block to abut against the oil storage tank.

[0011] According to some embodiments of the present invention, a third elastic member is included, the receiving member is hinged to the end of the driving section, one end of the third elastic member is connected to the receiving member, and the other end of the third elastic member is connected to the end of the driving section. The third elastic member is used to drive the receiving member to flip towards the center of the second receiving port. When the force of the oil tank pressing the receiving member is greater than the elastic force of the third elastic member, the receiving member can flip away from the second receiving port so that the oil tank can fall from the second receiving port.

[0012] According to some embodiments of the present invention, an adjusting member is included. The adjusting member is disposed on a mounting base and is connected to a support block in a transmission manner. The adjusting member is used to drive the support block to rotate. The adjusting member is a worm gear. A worm wheel is disposed on the support block. The worm wheel can rotate synchronously with the support block. The adjusting member is used to drive the worm wheel to rotate so as to drive the support block to rotate.

[0013] According to some embodiments of the present invention, a power component is included, which is disposed on a mounting base and is connected to a turntable via a transmission mechanism. The power component is used to drive the turntable to rotate.

[0014] According to some embodiments of the present invention, a gear is provided on the turntable, the gear is coaxially arranged with the turntable, the power component is a motor, the power component is connected to the gear for transmission, and the power component is used to drive the gear to rotate so as to drive the turntable to rotate.

[0015] According to some embodiments of the present invention, two limiting blocks are provided on the support block, the two limiting blocks are distributed circumferentially on the support block, and the two limiting blocks define a predetermined angle on the support block. A stop block is provided on the turntable, and the limiting blocks are used to block the stop block so that the turntable rotates within the predetermined angle.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the welding auxiliary device for an oil storage tank according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 An exploded view of the welding auxiliary equipment for the oil storage tank is shown.

[0020] Figure 3 for Figure 1 An exploded view of the welding auxiliary equipment of the oil storage tank from the rear view angle;

[0021] Figure 4 for Figure 1 The right view of the welding auxiliary device for the oil storage tank is shown.

[0022] Figure 5 for Figure 1 The diagram shows the structure of the oil storage tank after the support block on the welding auxiliary device is rotated 90° and the oil storage tank is vertical.

[0023] Figure 6 for Figure 1 A schematic diagram showing the position of the clamping rod when the turntable of the welding auxiliary device for the oil storage tank is vertical;

[0024] Figure 7 for Figure 6 A schematic diagram showing how the oil storage tank presses down on the receiving part after the turntable rotates 90°, causing the clamping part to hold the oil storage tank in place.

[0025] Figure 8 for Figure 7 A schematic diagram showing the oil storage tank continuing to press down on the receiving component, causing the receiving component to give way and the oil storage tank detaching from the second receiving port.

[0026] Icon labels:

[0027] Mounting base 100, adjusting component 110, power component 120;

[0028] Support block 200, first receiving port 210, worm gear 220, limit block 230;

[0029] Turntable 300, second receiving port 310, first elastic element 311, gear 320, stop block 330;

[0030] Mounting slot 400;

[0031] Clamping rod 500, clamping section 510, snap-fit ​​component 511, contact block 511a, second elastic component 511b, driving section 520, receiving component 521, third elastic component 522;

[0032] Oil storage tank 600. Detailed Implementation

[0033] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0034] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0035] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0036] Reference Figures 1 to 8This invention discloses a welding auxiliary device for oil storage tanks, applied to an automatic arc welding machine, comprising a mounting base 100, a support block 200, a turntable 300, a mounting groove 400, and a clamping rod 500. The support block 200 is rotatably mounted on the mounting base 100, and its rotation axis extends horizontally. This horizontal direction refers to the left-right direction, meaning the support block 200 can be adjusted in the front-back direction, i.e., it can rotate within a plane formed by the vertical and front-back directions. The support block 200 has a first receiving opening 210. The turntable 300 is rotatably mounted on the support block 200, and its rotation axis is perpendicular to the surface of the support block 200. The turntable 300 also has a second receiving opening 310, which is coaxial with the first receiving opening 210 and extends along the rotation axis of the turntable 300. It should be noted that both the first receiving port 210 and the second receiving port 310 are designed to allow the oil storage tank 600 to enter or pass through. Their coaxial arrangement facilitates the passage of the oil storage tank 600. The mounting groove 400 is located on the side of the turntable 300 opposite to the support block 200. The mounting groove 400 is used to install the oil storage tank 600, which can extend into the first receiving port 210 and the second receiving port 310 in sequence. It should be noted that the mounting groove 400 not only serves to install the oil storage tank 600, but also guides the oil storage tank 600 into the first receiving port 210 and the second receiving port 310. Furthermore, the mounting groove 400 restricts the displacement of the oil storage tank 600 in other directions, ensuring that the oil storage tank 600 can only move along the length extension direction of the mounting groove 400 or be clamped by the clamping rod 500.

[0037] Understandably, after the oil storage tank 600 is installed, welding is carried out using an automatic arc welding machine. The automatic arc welding machine is a conventional piece of equipment, which has a welding torch that can be moved flexibly. The welding torch is used to weld the oil storage tank 600 on the welding auxiliary device.

[0038] Reference Figures 1 to 3 , Figures 6 to 8Two clamping rods 500 are symmetrically arranged along the axis of the turntable 300 on the inner wall of the second receiving port 310. The middle of each clamping rod 500 is hinged to the inner wall of the second receiving port 310. The clamping rod 500 is divided into a clamping section 510 and a driving section 520 with the hinge point as the dividing point. The clamping section 510 is located near the mounting groove 400, and the driving section 520 is located near the support block 200. The weight of the driving section 520 is greater than that of the clamping section 510. It can be understood that the greater weight of the driving section 520 than the clamping section 510 is the main reason why the driving section 520 can be swung to the middle of the second receiving port 310, so that the oil storage tank 600 can be moved from the front end of the second receiving port 310. Insertion is performed to prevent the snap-fit ​​component 511 from blocking the oil tank 600. The end of the clamping section 510 is provided with the snap-fit ​​component 511, and the end of the driving section 520 is provided with the receiving component 521. When the mounting groove 400 is horizontal, the driving section 520 drives the receiving component 521 to the middle of the second receiving port 310 due to its own weight. At the same time, the clamping section 510 drives the snap-fit ​​component 511 away from the mounting groove 400. When the support block 200 drives the mounting groove 400 and the oil tank 600 to rotate to the vertical position, the oil tank 600 presses down on the receiving component 521 to make the driving section 520 move away from the second receiving port 310. At the same time, the clamping section 510 drives the snap-fit ​​component 511 to approach the mounting groove 400, so that the two snap-fit ​​components 511 clamp the oil tank 600.

[0039] In some embodiments, several clamping rods 500 may be provided, and the clamping rods 500 may cooperate with the inner bottom surface of the mounting groove 400 to clamp the oil storage tank 600. A manual clamping device may also be provided on the side wall of the mounting groove 400, which can directly clamp the oil storage tank 600 in the mounting groove 400.

[0040] It should be understood that the support block 200, in conjunction with the turntable 300, enables the attitude switching of the oil storage tank 600. The linkage between the clamping rod 500 and the support block 200 enables automatic clamping of the oil storage tank 600 after it is verticalized. The oil storage tank 600 presses down on the receiving part 521, which drives the snap-fit ​​part 511 of the clamping section 510 to approach the mounting groove 400, thereby automatically clamping the oil storage tank 600. This is achieved using the gravity of the oil storage tank 600 itself, eliminating the need for manual operation of the clamping device, greatly reducing the frequency of manual operation, and avoiding multiple clamping and positioning deviations. Because the operation eliminates the need for manual intervention in the clamping process, the welding efficiency is significantly improved. The movement positions of the support block 200 and the turntable 300 can be predicted and adjusted, so welding can be performed at a predetermined position during the welding operation, eliminating the need to adjust the welding position and improving welding accuracy.

[0041] In some embodiments, an adjusting member 110 is included. The adjusting member 110 is disposed on the mounting base 100 and is connected to the support block 200. The adjusting member 110 is used to drive the support block 200 to rotate.

[0042] In some embodiments, the adjusting member 110 is a worm gear, which is rotatably mounted on the mounting base 100. A worm wheel 220 is provided on the support block 200. The worm wheel 220 can rotate synchronously with the support block 200. The worm gear meshes with the worm wheel 220, and the worm gear is used to drive the worm wheel 220 to rotate so as to drive the support block 200 to rotate.

[0043] In some embodiments, the adjusting member 110 may be a second gear, which is rotatably mounted on the mounting base 100. A third gear is provided on the support block 200, and the third gear can rotate synchronously with the support block 200. The second gear meshes with the third gear, and the second gear drives the third gear to rotate, thereby causing the support block 200 to rotate. It is understood that either the worm gear 220 or the second gear can be driven to rotate by a handle or by an electric motor.

[0044] In some embodiments, a power component 120 is included, which is disposed on the mounting base 100 and is connected to the turntable 300 for driving the turntable 300 to rotate. It is understood that the power component 120 is a motor, and the output shaft of the motor is connected to the turntable 300 for driving. The turntable 300 is precisely rotated by the motor, thereby controlling the rotation angle of the oil tank 600 in a vertical position to adapt to the welding position of the welding torch of the automatic arc welding machine. The welding torch is mounted on the robotic arm of the automatic arc welding machine. Since the automatic arc welding machine is a conventional welding equipment, to avoid or reduce the movement of the welding torch, the oil tank 600 is actively rotated to a preset weld seam trajectory to ensure that the welding torch is always in the optimal welding posture.

[0045] Reference Figures 3 to 5 A gear 320 is mounted on the turntable 300, coaxially with it. A motor, acting as the power unit 120, drives the gear 320 to rotate, thus rotating the turntable 300. A reducer connects the gear 320 to the motor output shaft to improve torque output accuracy and low-speed stability, ensuring the oil tank 600 completes multiple continuous rotations at a uniform speed without vibration during welding. The reducer eliminates inertial interference caused by the high-speed rotation of the motor, significantly improving weld quality. A key connects the gear 320 to the turntable 300 for circumferential fixation, ensuring reliable power transmission. Simultaneously, a bearing structure at the bottom of the turntable 300 supports its smooth rotation, reducing running resistance and wear.

[0046] In some embodiments, the mounting base 100 is also provided with an angle sensor for real-time monitoring of the rotation angle of the turntable 300 and feeding the signal back to the control system. The control system dynamically adjusts the motor speed and start-stop sequence accordingly. The so-called control system includes a conventional PLC or industrial computer.

[0047] Reference Figure 3 and Figure 5 The support block 200 is provided with two limiting blocks 230, which are distributed circumferentially around the support block 200. The two limiting blocks 230 define a predetermined angle on the support block 200. The turntable 300 is provided with a stop block 330, and the limiting blocks 230 are used to block the stop block 330 so that the turntable 300 rotates within the predetermined angle. Reciprocating rotation within the predetermined angle range limits the rotational stroke of the oil storage tank 600, preventing over-rotation that could cause welding difficulties; generally, this predetermined angle is 180°. The contact surface between the stop block 330 and the limiting block 230 is provided with a buffer pad to reduce impact noise and extend mechanical life.

[0048] Reference Figure 3 , Figures 5 to 7 The system includes a first elastic element 311, which is connected between the inner wall of the second receiving port 310 and the driving segment 520. The first elastic element 311 is used to drive the driving segment 520 to swing towards the center of the second receiving port 310. This first elastic element 311, in conjunction with the gravity of the driving segment 520, enables the driving segment 520 to swing towards the center of the second receiving port 310, ensuring that the driving segment 520 automatically returns to its central equilibrium position when no external force is applied. Furthermore, the first elastic element 311 provides a certain preload to prevent the driving segment 520 from rotating even with slight contact.

[0049] In some embodiments, the snap-fit ​​member 511 includes a contact block 511a and a second elastic member 511b. The contact block 511a is connected to the end of the clamping section 510 via the second elastic member 511b. The second elastic member 511b is used to drive the contact block 511a to abut against the oil storage tank 600 and move outward from the clamping section 510, so that the contact block 511a is tightly attached to the outer wall of the oil storage tank 600, thereby achieving adaptive envelope positioning. The elastic force of the second elastic member 511b ensures that the contact block 511a does not lose its position under vibration environment, and also avoids damage to the surface of the oil storage tank 600 due to over-clamping.

[0050] In some embodiments, a third elastic member 522 is included, and a receiving member 521 is hinged to the end of the driving segment 520. One end of the third elastic member 522 is connected to the receiving member 521, and the other end of the third elastic member 522 is connected to the end of the driving segment 520. The third elastic member 522 is used to drive the receiving member 521 to flip towards the middle of the second receiving port 310. When the force of the oil tank 600 pressing the receiving member 521 is greater than the elastic force of the third elastic member 522, the receiving member 521 can flip away from the second receiving port 310 so that the oil tank 600 can fall from the second receiving port 310.

[0051] In some embodiments, a conveying mechanism is included to convey the oil storage tank 600 to the end of the mounting trough 400 away from the turntable 300. It is understood that the conveying mechanism is a conveying roller or conveyor belt, with the conveying direction from left to right, while the oil storage tank 600 is placed on the conveying roller or conveyor belt in a front-to-back direction. When the oil storage tank 600 is aligned with the mounting trough 400 in the front-to-back direction, the conveying mechanism stops operating, and the oil storage tank 600 is pushed into the mounting trough 400 manually or by using a cylinder.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A welding auxiliary device for an oil storage tank, characterized in that, include: Mounting base (100); A support block (200) is rotatably mounted on the mounting base (100). The rotation axis of the support block (200) extends in the horizontal direction. The support block (200) has a first receiving opening (210). A turntable (300) is rotatably mounted on the support block (200). The rotation axis of the turntable (300) is perpendicular to the rotation axis of the support block (200). The turntable (300) has a second receiving port (310). The second receiving port (310) is coaxially arranged with the first receiving port (210) and extends along the rotation axis of the turntable (300). The first receiving port (210) and the second receiving port (310) are used to receive the oil storage tank (600). An installation groove (400) is disposed on the side of the turntable (300) away from the support block (200). The installation groove (400) has a length direction extending along the rotation axis of the support block (200). The installation groove (400) is used to guide and install the oil storage tank (600) so that the oil storage tank (600) can extend into the first receiving port (210) and the second receiving port (310) in sequence. Two clamping rods (500) are symmetrically arranged on the inner wall of the second receiving port (310) along the axis of the turntable (300). The clamping rods (500) are hinged to the inner wall of the second receiving port (310). When the support block (200) rotates to make the rotation axis of the turntable (300) vertical, the gravity of the oil storage tank (600) can drive the two clamping rods (500) to clamp the oil storage tank (600). The clamping rods (500) are separated at the hinge point. The boundary is divided into a clamping section (510) and a driving section (520). The clamping section (510) is located near the mounting groove (400), and the driving section (520) is located near the support block (200). The weight of the driving section (520) is greater than the weight of the clamping section (510). A snap-fit ​​member (511) is provided at the end of the clamping section (510), and a receiving member (521) is provided at the end of the driving section (520). When the length extension line of the mounting groove (400) is horizontal... In this state, the drive section (520) moves the receiving member (521) to the middle of the second receiving port (310) due to its own weight. At the same time, the clamping section (510) moves the snap-fit ​​member (511) away from the mounting groove (400). When the support block (200) rotates to make the length extension line of the mounting groove (400) vertical, the length extension line of the oil tank (600) is also in a vertical state. The oil tank (600) can press down on the receiving member (521) to make the drive section (520) Move away from the second receiving port (310), while the clamping section (510) drives the snap-fit ​​member (511) to clamp the oil storage tank (600). The snap-fit ​​member (511) includes a contact block (511a) and a second elastic member (511b). The contact block (511a) is connected to the end of the clamping section (510) through the second elastic member (511b). The second elastic member (511b) is used to drive the contact block (511a) to abut against the oil storage tank (600). A first elastic element (311) is connected between the inner wall of the second receiving port (310) and the driving segment (520). The first elastic element (311) is used to drive the driving segment (520) to swing towards the middle of the second receiving port (310). The third elastic element (522) is hinged to the end of the drive section (520). One end of the third elastic element (522) is connected to the support (521), and the other end of the third elastic element (522) is connected to the end of the drive section (520). The third elastic element (522) is used to drive the support (521) to flip towards the middle of the second receiving port (310). When the force of the oil tank (600) pressing the support (521) is greater than the elastic force of the third elastic element (522), the support (521) can flip away from the second receiving port (310) so that the oil tank (600) can fall from the second receiving port (310).

2. The welding auxiliary device for the oil storage tank according to claim 1, characterized in that, It also includes an adjusting member (110), which is disposed on the mounting base (100). The adjusting member (110) is connected to the support block (200) in a transmission manner. The adjusting member (110) is used to drive the support block (200) to rotate. The adjusting member (110) is a worm gear. The support block (200) is provided with a worm wheel (220). The worm wheel (220) can rotate synchronously with the support block (200). The adjusting member (110) is used to drive the worm wheel (220) to rotate so as to drive the support block (200) to rotate.

3. The welding auxiliary device for the oil storage tank according to claim 2, characterized in that, It also includes a power component (120), which is disposed on the mounting base (100) and is connected to the turntable (300) for driving the turntable (300) to rotate.

4. The welding auxiliary device for the oil storage tank according to claim 3, characterized in that, The turntable (300) is provided with a gear (320), the gear (320) is coaxially arranged with the turntable (300), the power component (120) is a motor, the power component (120) is connected to the gear (320) for transmission, and the power component (120) is used to drive the gear (320) to rotate so as to drive the turntable (300) to rotate.

5. The welding auxiliary device for the oil storage tank according to claim 1, characterized in that, The support block (200) is provided with two limiting blocks (230), which are distributed circumferentially on the support block (200) and define a predetermined angle on the support block (200). The turntable (300) is provided with a stop block (330), which is used to block the stop block (330) so that the turntable (300) rotates within the predetermined angle.

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