Multi-welding-gun preheating efficient welding device for large roller machining

Abstract

The utility model discloses a multi-welding-gun preheating efficient welding device for large roller machining, and relates to the technical field of large roller machining, the multi-welding-gun preheating efficient welding device comprises a welding device main body, supporting frames are symmetrically and detachably installed at the bottom of the welding device main body, and connecting blocks are symmetrically and rotationally connected to the outer side of the welding device main body; a fixing bolt is in threaded connection with one side of the connecting block, an arc-shaped plate is detachably mounted at the top of the connecting block, a plurality of sets of mounting frames are evenly and rotatably connected to one side of the arc-shaped plate, a fixing sleeve is fixedly connected to one side of the top of each mounting frame, and a welding gun head is slidably connected into each fixing sleeve. And one side of the fixed sleeve is in threaded connection with a fastening bolt. According to the multi-welding-gun preheating efficient welding device for large roller machining, the welding gun head moves on the fixing sleeve, the position of the welding gun head on the fixing sleeve can be adjusted, the welding gun head can conveniently adapt to welding of large rollers with different diameters, and the application range of the device is wider.

Description

Technical Field

[0001] This utility model relates to the field of large-scale rolling mill processing technology, and in particular to a high-efficiency welding device for preheating with multiple welding guns for large-scale rolling mill processing. Background Technology

[0002] Roll processing refers to the process of processing cast or forged roll blanks into finished rolls. This process includes cutting operations carried out at both the roll manufacturing plant and the roll user plant, such as turning, grinding and milling. For section steel rolls, it also includes die processing. Some large rolls are processed in combination, and the roll body and the connecting shafts at both ends of the roll need to be welded and fixed together.

[0003] The existing welding process for large rolls uses manual single welding gun for circumferential welding, which is inefficient and requires manual hand-held welding gun to circle the roll, making it difficult and causing some adverse effects on users. To address the shortcomings of the existing technology, we propose a multi-welding gun preheating high-efficiency welding device for large roll processing. Utility Model Content

[0004] The main objective of this invention is to provide a high-efficiency welding device for preheating with multiple welding guns for processing large rolls, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency welding device for preheating with multiple welding guns for large-scale roll processing includes a welding device body. Support frames are symmetrically and detachably installed at the bottom of the welding device body. Connecting blocks are symmetrically and rotatably connected to the outer side of the welding device body. A fixing bolt is threadedly connected to one side of each connecting block. An arc-shaped plate is detachably installed on the top of each connecting block. Multiple sets of mounting frames are evenly and rotatably connected to one side of each arc-shaped plate. A fixing sleeve is fixedly connected to one side of the top of each mounting frame. A welding gun head is slidably connected inside the fixing sleeve. A fastening bolt is threadedly connected to one side of the fixing sleeve.

[0007] Preferably, a limiting rod is detachably installed on one side of the bottom of the main body of the welding device, and one end of the limiting rod is vertically flush with one side of the connecting block.

[0008] Preferably, one end of the fixing bolt abuts against one side of the bottom of the welding device body, and threaded holes are symmetrically opened on the outer side of the welding device body.

[0009] Preferably, one end of the fastening bolt abuts against one side of the welding torch head, and the length of the welding torch head is five times the length of the fixing sleeve.

[0010] Preferably, a gap is provided between one side of the fixed sleeve and one side of the arc plate, and a gap is provided between one side of the welding gun head and one side of the arc plate.

[0011] Preferably, the length of the fixing sleeve is the same as the width of the mounting bracket, and the width of the mounting bracket is half the width of the arc-shaped plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, the position of the welding torch head on the fixed sleeve can be adjusted by the movement of the welding torch head on the fixed sleeve, which makes it convenient for the welding torch head to adapt to the welding of large rolls of different diameters. The device has a wider range of applications and is more practical. Moreover, the multi-station setting improves welding efficiency.

[0014] 2. In this utility model, the connecting block is carried to one side of the main body of the welding device by the arc plate, which reduces the overall storage area of ​​the device, making it convenient for staff to store and transport, and also reduces the floor space occupied, avoiding collisions and damage to the outside world. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled connecting block structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of the mounting bracket of this utility model;

[0018] Figure 4 yes Figure 3 Enlarged view of region A in the middle.

[0019] In the diagram: 1. Main body of welding device; 2. Support frame; 3. Connecting block; 4. Fixing bolt; 5. Arc plate; 6. Mounting frame; 7. Fixing sleeve; 8. Welding torch head; 9. Fastening bolt; 10. Limiting rod. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figures 1-3As shown, a high-efficiency welding device for preheating with multiple welding guns for large roll processing is described. By loosening the fixing bolt 4, one end of the fixing bolt 4 detaches from the bottom of the welding device body 1, and the fixing bolt 4 no longer restricts the connecting block 3 to one side of the welding device body 1. Then, the connecting block 3 is pulled to rotate on the welding device body 1. The connecting block 3 drives the arc-shaped plate 5, which is then retracted to one side of the welding device body 1. The limiting rod 10 installed at the bottom of the welding device body 1 serves as a limit for the arc-shaped plate 5 after it rotates on the welding device body 1. 10. Support the arc plate 5. At the same time, when the arc plate 5 is stored on one side of the welding device body 1, loosen the fastening bolt 9. The fastening bolt 9 no longer abuts against one side of the welding gun head 8, and the fastening bolt 9 no longer limits the welding gun head 8. Thus, when the arc plate 5 is stored on one side of the welding device body 1, the welding gun head 8 rotates in the fixed sleeve 7. Utilizing the gap between the welding gun head 8 and the arc plate 5, the welding gun head 8 does not contact the welding device body 1, preventing the welding device body 1 from limiting the welding gun head 8, and completing the storage of the arc plate 5 on the side of the welding device body 1.

[0022] After the arc plate 5 is stored in the side of the welding device body 1, tighten the fixing bolt 4. At this time, one end of the fixing bolt 4 enters the threaded hole opened in the welding device body 1 through the thread, thereby fixing the connecting block 3 to one side of the welding device body 1. The connecting block 3 drives the arc plate 5 to be fixed to one side of the welding device body 1. Then tighten the fastening bolt 9. The fastening bolt 9 once again abuts and fixes the welding gun head 8 in the fixing sleeve 7, completing the overall fixing and storage.

[0023] Example 2, as Figure 2 and Figure 4 As shown, a high-efficiency welding device with preheating multiple welding torches for large roll processing is described. By tightening the fastening bolt 9, the fastening bolt 9 is no longer pressed against the upper limit of the welding torch head 8, causing the welding torch head 8 to move on the fixed sleeve 7. The movement distance of the welding torch head 8 on the fixed sleeve 7 is determined according to the size of the large roll to be welded. When the large roll size is large, the welding torch head 8 is pulled outward; when the large roll size is small, the welding torch head 8 is pushed inward. After adjustment, the fastening bolt 9 is tightened to fix the position of the welding torch head 8, thus completing the welding process. After the welding torch head 8 is adjusted to the desired position, pull the welding torch head 8 to drive the fixed sleeve 7 and the mounting frame 6 to rotate on one side of the arc plate 5. Place one end of the welding torch head 8 against the large roller to be welded, ready to weld. Use the friction between the large roller and one end of the welding torch head 8 to limit the welding torch head 8 at this time. Thus, the welding torch head 8 drives the fixed sleeve 7 and the mounting frame 6, fixing the rotation angle of the mounting frame 6 on one side of the arc plate 5. Multiple welding torch heads 8 on one side of the arc plate 5 are operated according to the above steps to preheat for welding.

[0024] It should be noted that this utility model is a high-efficiency welding device for preheating multiple welding guns for processing large rolls. In use, by loosening the fixing bolt 4 and removing the limiting connecting block 3, the arc plate 5 is pulled to move the connecting block 3 to one side of the main body 1 of the welding device, which facilitates the overall storage and movement. During welding, the friction between the end of the welding gun head 8 and the welding point of the large roll is used to limit and fix the mounting frame 6 to rotate on one side of the arc plate 5. When welding the welding point of the large roll, multiple welding gun heads 8 on one side of the arc plate 5 provide multi-station welding, and the mounting frame 6 and the fixing sleeve 7 support the welding gun head 8 on one side of the arc plate 5 and help fix the position of the welding gun head 8 on one side of the arc plate 5, making it easier for the operator to operate the welding gun head 8.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-welding gun preheating high-efficiency welding device for large roller processing, comprising a welding device main body (1), characterized in that: The bottom of the welding device body (1) is detachably installed with a supporting frame (2) symmetrically, the outer side of the welding device body (1) is rotationally connected with a connecting block (3) symmetrically, one side of the connecting block (3) is threadedly connected with a fixing bolt (4), the top of the connecting block (3) is detachably installed with an arc-shaped plate (5), one side of the arc-shaped plate (5) is uniformly rotationally connected with a plurality of groups of mounting frames (6), one side of the top of the mounting frame (6) is fixedly connected with a fixing sleeve (7), the inside of the fixing sleeve (7) is slidably connected with a welding gun head (8), one side of the fixing sleeve (7) is threadedly connected with a fastening bolt (9).

2. The multi-welding gun preheating high-efficiency welding device for large roller processing according to claim 1, characterized in that: The bottom of the welding device body (1) is detachably installed with a supporting frame (2) symmetrically, the outer side of the welding device body (1) is rotationally connected with a connecting block (3) symmetrically, one side of the connecting block (3) is threadedly connected with a fixing bolt (4), the top of the connecting block (3) is detachably installed with an arc-shaped plate (5), one side of the arc-shaped plate (5) is uniformly rotationally connected with a plurality of groups of mounting frames (6), one side of the top of the mounting frame (6) is fixedly connected with a fixing sleeve (7), the inside of the fixing sleeve (7) is slidably connected with a welding gun head (8), one side of the fixing sleeve (7) is threadedly connected with a fastening bolt (9).

3. The multi-welding gun preheating high-efficiency welding device for large roller processing according to claim 1, characterized in that: One end of the fixing bolt (4) abuts against one side of the bottom of the welding device body (1), and the outer side of the welding device body (1) is symmetrically provided with a threaded hole.

4. The multi-welding gun preheating high-efficiency welding device for large roller processing according to claim 1, characterized in that: One end of the fastening bolt (9) abuts against one side of the welding gun head (8), and the length of the welding gun head (8) is five times the length of the fixing sleeve (7).

5. The multi-welding gun preheating high-efficiency welding device for large roller processing according to claim 1, characterized in that: A gap is arranged between one side of the fixing sleeve (7) and one side of the arc-shaped plate (5), and a gap is arranged between one side of the welding gun head (8) and one side of the arc-shaped plate (5).

6. The multi-welding gun preheating high-efficiency welding device for large roller processing according to claim 1, characterized in that: The length of the fixing sleeve (7) is the same as the width of the mounting frame (6), and the width of the mounting frame (6) is half the width of the arc-shaped plate (5).

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