A tank body welding device

Abstract

The utility model provides a kind of storage tank body welding device, including automatic welding robot, located the outside of to-be-welded tank body, and the welding arm of automatic welding robot can circumferentially encircle the outside wall of to-be-welded tank body, is located the outside wall of to-be-welded tank body and is provided with collection assembly, collection assembly includes the receiving cover of being set on the outside wall of to-be-welded tank body, receiving cover is the structure that upper cross-sectional area is greater than lower cross-sectional area, the end of minimum cross-sectional area of receiving cover is opened and closed with through-hole, through-hole is provided with heat-resistant elastic sealing element, heat-resistant elastic sealing element is sealed with the outside wall of to-be-welded tank body, the utility model can be by the receiving cover of being set on the outside of to-be-welded and realize the high-temperature welding slag generated in welding process to carry out fast efficient centralized collection operation, avoid splashing thing scattering pollution tank surface and ground, cleaning time is greatly shortened after single welding, greatly improve the labor intensity of operation environment and collection operation, it is more convenient and efficient to operate.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically to a tank body welding device. Background Technology

[0002] In the manufacturing process of storage tanks, such as chemical storage tanks and liquid storage tanks, the welding of the circumferential or longitudinal seams on the outer wall of the tank body is a core process, and automated welding robots are typically used for efficient operation. However, traditional welding equipment has many technical shortcomings in practical applications: Welding spatter is difficult to collect, pollutes the environment and damages equipment: The high-temperature spatter, slag and metal particles generated during the welding process can easily fall onto the surface of the tank, the ground or surrounding equipment, which not only pollutes the working environment and increases the amount of cleaning work, but may also scratch the surface coating of the tank or damage the surrounding electrical control components, posing certain safety hazards. Utility Model Content

[0003] In view of this, the present invention provides a tank body welding device, which can collect the high-temperature spatter slag and metal particles generated during the welding process by setting a collection cover on the outside of the part to be welded. This solves the problem that the high-temperature spatter slag and metal particles generated during the traditional welding process are easy to fall onto the tank surface, the ground or surrounding equipment, which not only pollutes the working environment and increases the amount of cleaning work, but may also scratch the tank surface coating or damage the surrounding electrical control components, posing certain safety hazards.

[0004] To solve the above-mentioned technical problems, this utility model provides a tank body welding device, including an automatic welding robot located on the outside of the tank to be welded. The welding arm of the automatic welding robot can circumferentially surround the outer wall of the tank to be welded. A collection component is provided on the outer wall of the tank to be welded. The collection component includes a receiving cover fitted on the outer wall of the tank to be welded. The receiving cover has a structure where the upper cross-sectional area is larger than the lower cross-sectional area. The end of the receiving cover with the smallest cross-sectional area has a through hole. A heat-resistant elastic seal is provided in the through hole. The heat-resistant elastic seal seals with the outer wall of the tank to be welded. This utility model can achieve rapid, efficient and centralized collection of high-temperature welding slag generated during the welding process by using the receiving cover fitted on the outside of the tank to be welded. This avoids the scattering of spatter and contamination of the tank surface and the ground. The cleaning time after a single welding is greatly shortened, significantly improving the working environment and reducing the labor intensity of the collection operation. The operation is more convenient and efficient.

[0005] Fasteners are also provided at the bottom of the receiving cover.

[0006] The fastener includes a sliding sleeve, on the outer side wall of which a threaded through hole is provided, and a locking element is connected to the threaded through hole.

[0007] The locking component is a locking bolt.

[0008] The fastener is a ring clamp.

[0009] The ring clamp is equipped with a butterfly-shaped locking bolt.

[0010] The heat-resistant elastic seal is a rubber sealing sleeve.

[0011] The inside of the receiving hood is fitted with a heat-resistant collection hood, and the part of the heat-resistant collection hood that contacts the tank body has a protrusion.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. High spatter collection efficiency and improved working environment: This utility model can greatly improve the collection rate of welding spatter by combining the "inverted truncated cone" structure of the receiving cover with the annular protrusion of the heat-resistant collection cover, avoiding spatter from scattering and contaminating the tank surface and the ground, greatly shortening the cleaning time after a single welding, and significantly improving the working environment and labor intensity.

[0013] 2. Reliable sealing performance with no splashing or leakage: This invention can eliminate gaps by using the heat-resistant elastic sealing element at the bottom to fit tightly against the tank wall due to elastic deformation. This solves the problem of poor sealing in traditional devices, greatly reducing the leakage rate of splashing and preventing small particles from damaging surrounding electrical control components, such as robot sensors.

[0014] 3. Easy installation and disassembly, strong adaptability: This utility model can be installed and disassembled by a single person in 5-8 minutes using sliding fasteners. There is no need to replace the entire set of collection components for tanks of different diameters, which greatly improves versatility and reduces equipment procurement costs.

[0015] 4. Excellent heat resistance and long service life: This utility model can withstand high temperatures of 1200℃ through its heat-resistant collection cover, directly receiving splashes and avoiding high temperature damage to the collection cover, thus greatly extending the service life of the collection cover; at the same time, the collection cover is detachable, so there is no need to disassemble the collection cover during maintenance, which greatly shortens maintenance time and reduces operating costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the tank body welding device of this utility model; Figure 2 This is a front view of the tank body welding device of this utility model; Figure 3 This utility model Figure 2 Sectional view at point AA; Figure 4 This is an isometric view of the tank body welding device of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 100, collection assembly; 110, collection cover; 111, through hole; 120, heat-resistant elastic seal; 200, fastener; 201, sliding sleeve; 202, threaded through hole; 203, locking element; 300, heat-resistant collection cover. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0019] like Figure 1-4As shown: This embodiment provides a tank body welding device, including an automatic welding robot. The welding robot is a six-axis automatic welding robot, model IRB 1600ID, manufactured by ABB Robotics Ltd. The robot's base is fixed to a movable guide rail made of 45# steel with a surface hardening treatment. A welding torch, brand Lincoln Electric, model Power Wave S350, is mounted at the end of its welding arm. Driven by a robot control system, such as a Siemens S7-1200 PLC controller, it can achieve circumferential movement along the outer wall of the tank to be welded, completing the automatic welding of circumferential or longitudinal seams. Located on the outside of the tank to be welded, and with its welding arm capable of circumferentially circumferentially surrounding the outer wall, a collecting assembly 100 is provided on the outer wall of the tank. The collecting assembly 100 includes a receiving cover 110 fitted onto the outer wall of the tank. The receiving cover 110 has an upper cross-sectional area larger than its lower cross-sectional area and is a "truncated cone". The receiving cover 110 is made of Q345R heat-resistant steel plate. Q345R has high temperature resistance and impact resistance, and can withstand the impact of spatter without easily deforming. A large opening at the top collects welding spatter, while a narrow opening at the bottom guides the spatter to fall into the collection area, preventing it from scattering. The end of the receiving cover 110 with the smallest cross-sectional area has a through hole 111. A heat-resistant elastic seal 120 is installed inside the through hole 111. The heat-resistant elastic seal 120 seals against the outer wall of the tank to be welded. The heat-resistant elastic seal 120 is an annular rubber sealing sleeve made of methyl vinyl silicone rubber, which has high temperature resistance and elasticity. The installation method is as follows: the sealing sleeve is embedded in the annular groove on the inner wall of the lower through hole 111 of the receiving cover 110, with its inner sidewall tightly fitting against the outer wall of the tank to be welded. The compression is controlled at 10%-15%, achieving a sealing fit and preventing small spatter from leaking out through gaps. This utility model enables rapid and efficient collection of high-temperature welding slag generated during welding by using a collection cover 110 fitted on the outside of the tank to be welded. This prevents spatter from scattering and contaminating the surface of the tank and the ground, greatly shortens the cleaning time after each welding operation, significantly improves the working environment and reduces the labor intensity of the collection operation, and makes the operation more convenient and efficient.

[0020] Fasteners 200 are also provided at the lower part of the receiving cover 110.

[0021] According to another embodiment of the present invention, such as Figure 1 and Figure 2As shown, the fastener 200 includes a sliding sleeve 201. A threaded through hole 202111 is provided on the outer wall of the sliding sleeve 201. A locking element 203 is threaded into the threaded through hole 202111. Specifically, the sliding sleeve 201 type fastener 200 includes a sliding sleeve 201 fitted onto the lower outer wall of the receiving cover 110. Its material is 304 stainless steel. Three to four threaded through holes 202111 are evenly provided circumferentially on the outer wall of the sliding sleeve 201. Each threaded through hole 202111 is threaded into a locking element 203. The locking element is a 304 stainless steel locking bolt, model GB / T 5783. Its function is as follows: after adjusting the position of the sliding sleeve 201, tightening the locking bolt causes the bolt end to press against the outer wall of the tank, achieving rapid fixation of the receiving cover 110; loosening the bolt in the opposite direction allows for disassembly. Installation or disassembly can be completed by a single operator in 5-8 minutes.

[0022] According to another embodiment of the present invention, such as Figure 3 As shown, the locking component 203 is a locking bolt.

[0023] According to another embodiment of the present invention, such as Figure 1 and Figure 4 As shown, fastener 200 is a ring-shaped clamp, which is made of 304 stainless steel. The clamp has ear plates at both ends, and through holes 111 are opened on the ear plates. Locking nuts and bolts are inserted into the through holes 111. This utility model, by fitting the clamp on the lower part of the receiving cover 110 and the tank body, and tightening the bolts and nuts, causes the clamp to contract and tighten the tank body. It is suitable for tanks with larger diameters, has higher fixing strength, stronger vibration resistance, and no obvious displacement of the clamp during welding.

[0024] The ring clamp is equipped with a butterfly-shaped locking bolt.

[0025] The heat-resistant elastic seal 120 is a rubber sealing sleeve.

[0026] The receiving hood 110 is fitted with a heat-resistant collection hood 300. The heat-resistant collection hood 300 has a protrusion at the part that contacts the tank. The heat-resistant collection hood 300 is a detachable hood fitted inside the receiving hood 110. It is made of ceramic fiber composite material, which has excellent heat resistance and insulation. The inner wall of the collection hood that contacts the tank has annular protrusions of ceramic fiber composite material. The protrusions can fit against the outer wall of the tank and further prevent splashes from entering the gap between the receiving hood 110 and the collection hood. It can directly receive high-temperature splashes and prevent splashes from directly impacting the inner wall of the receiving hood 110, thus extending the service life of the receiving hood 110. Moreover, the collection hood is detachable for cleaning. When a lot of splashes accumulate inside, it can be removed for cleaning or replacement, resulting in low maintenance costs.

[0027] Working principle and usage of this utility model: First, it needs to be clarified that the welding device involved in this utility model is mainly used for the centralized and efficient collection of high-temperature welding slag generated during the welding process of the tank. This utility model takes the welding of the storage tank and the flange as an example to explain in detail the working principle and usage method of the welding assembly. The working principle is as follows: This invention achieves efficient welding of storage tank bodies and controllable collection of spatter through the coordinated operation of an automatic welding robot and a collection component 100. The specific working principle is as follows: Sealing and fixing principle: The receiving cover 110 of the collecting component 100 is sleeved on the outer wall of the tank to be welded through the lower through hole 111. The heat-resistant elastic sealing element 120 in the through hole 111 fits tightly against the tank wall due to elastic deformation, eliminating gaps and preventing splashes from leaking out; at the same time, the receiving cover 110 is fixed to the tank by the lower fastener 200 to prevent the receiving cover 110 from shifting due to robot vibration or slight shaking of the tank during the welding process; Spatter collection principle: When the welding arm of the automatic welding robot moves circumferentially along the outer wall of the tank, the high-temperature spatter generated by the welding torch is affected by gravity and welding airflow and falls downward. The "inverted frustum" structure of the collection cover 110 can expand the collection range and make the spatter fall into the inside of the collection cover 110. The heat-resistant collection cover 300 inside directly receives the spatter and avoids high temperature damage to the collection cover 110. At the same time, the annular protrusion further prevents fine particles from leaking out from the gap between the collection cover and the tank. Adaptation and maintenance principle: The sliding sleeve 201 type fastener 200 can be adapted to tanks with a diameter deviation within ±50mm by adjusting the tightening force of the locking bolt; the ring clamp can be adapted to tanks with a diameter deviation within ±100mm by adjusting the tightening degree of the bolt; the heat-resistant collection cover 300 is detachable, and there is no need to disassemble the entire collection cover 110 during cleaning, only the collection cover needs to be removed, which reduces the difficulty of maintenance and time cost. The usage method is as follows: The steps for using the tank body welding device of this utility model are as follows, and the main operations can be completed by a single person: Device installation: First, fix the tank body to be welded at the welding station and ensure that there are no impurities in the welding area of ​​the outer wall of the tank body. Take the collection cover 110 of the collection component 100, align its lower through hole 111 with the lower part of the welding area of ​​the tank, and put it on the outer wall of the tank. Adjust the height of the collection cover 110 so that the upper edge of the collection cover 110 is 100-150mm below the welding torch to ensure that the spatter can fall in. If the sliding sleeve 201 type fastener 200 is used, slide the sliding sleeve 201 to the appropriate position, and tighten the locking bolts on the sliding sleeve 201 in sequence until the end of the bolt presses against the tank wall and the receiving cover 110 is not loose; if the ring clamp is used, put the clamp on the lower part of the receiving cover 110 where it fits against the tank, and tighten the nuts at both ends of the clamp to make the clamp hold the tank tightly. Insert the heat-resistant collection cover 300 into the upper opening of the receiving cover 110, so that the annular protrusion on the inner side wall of the collection cover fits against the outer side wall of the tank, thus completing the installation of the collection assembly 100. Welding parameter settings: Start the automatic welding robot and set the welding parameters through the Siemens S7-1200 control system: ensure that the parameters are suitable for the tank material and thickness; Welding operations: The welding program is started. The welding arm of the automatic welding robot moves the welding torch around the welding trajectory on the outer side of the tank to start welding. During the welding process, the spatter falls into the heat-resistant collection hood 300 inside the collection hood 110. The collection situation is observed in real time. If a lot of spatter accumulates, welding can be paused and the collection hood can be cleaned. Device disassembly and maintenance: After welding is completed, turn off the welding robot and wait for the welding area of ​​the tank to cool to room temperature; If it is a sliding sleeve type 201 fastener 200, loosen the locking bolts in sequence and remove the receiving cover 110 from the tank body; if it is an annular clamp, loosen the clamp nut and remove the clamp and the receiving cover 110. Remove the heat-resistant collection cover 300 inside the collection cover 110, and pour out the accumulated splashes and slag inside. If there is slag adhering to the inner wall of the collection cover, it can be cleaned with a wire brush. After cleaning, put it back into the collection cover 110 for the next use.

[0028] This utility model can collect the high-temperature spatter, slag, and metal particles generated during the welding process by setting a collection cover 110 on the outside of the workpiece to be welded. This solves the problem that the high-temperature spatter, slag, and metal particles generated during the traditional welding process are easy to fall onto the surface of the tank, the ground, or surrounding equipment, which not only pollutes the working environment and increases the amount of cleaning work, but may also scratch the surface coating of the tank or damage the surrounding electrical control components, posing certain safety hazards.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A tank body welding device, comprising an automatic welding robot located on the outside of the tank body to be welded, wherein the welding arm of the automatic welding robot can circumferentially surround the outer wall of the tank body to be welded, characterized in that: A collection assembly (100) is provided on the outer wall of the tank to be welded. The collection assembly (100) includes a receiving cover (110) sleeved on the outer wall of the tank to be welded. The receiving cover (110) has a structure with an upper cross-sectional area larger than a lower cross-sectional area. A through hole (111) is opened at the end of the receiving cover (110) with the smallest cross-sectional area. A heat-resistant elastic seal (120) is provided in the through hole (111) and seals the outer wall of the tank to be welded.

2. The tank body welding device as described in claim 1, characterized in that: The lower part of the receiving cover (110) is also provided with fasteners (200).

3. The tank body welding device as described in claim 2, characterized in that: The fastener (200) includes a sliding sleeve (201), and a threaded through hole (202) is provided on the outer side wall of the sliding sleeve (201). A locking member (203) is threadedly connected to the threaded through hole (202).

4. The tank body welding device as described in claim 3, characterized in that: The locking component (203) is a locking bolt.

5. The tank body welding device as described in claim 2, characterized in that: The fastener (200) is a ring clamp.

6. The tank body welding device as described in claim 5, characterized in that: The annular clamp is equipped with a butterfly-shaped locking bolt.

7. The tank body welding device as described in claim 1, characterized in that: The heat-resistant elastic seal (120) is a rubber sealing sleeve.

8. The tank body welding device as described in claim 1, characterized in that: The inside of the receiving cover (110) is fitted with a heat-resistant collection cover (300), and the part of the heat-resistant collection cover (300) that contacts the tank body is provided with a protrusion.

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