Internal and external universal welding rounding tool for cylinder welding

Abstract

The utility model relates to the technical field of chemical engineering, in particular to a barrel welding inside and outside universal welding roundness correcting tool which comprises an annular plate, a plurality of rectangular frames are fixedly installed on the upper surface of the annular plate at equal intervals, a top plate penetrates through the middles of the rectangular frames, puller bolts are installed in threaded holes in a threaded mode, and the lower ends of the puller bolts abut against the top plate. A plurality of limiting grooves are formed in the upper surface of the annular plate at equal intervals, the centers of the limiting grooves point to the center of the annular plate, through holes are formed in the centers of the limiting grooves, the rectangular frames are located in the limiting grooves, threaded rods are fixedly connected to the lower surfaces of the rectangular frames, and the threaded rods penetrate through the through holes; a nut is installed at one end of the threaded rod in a threaded mode. The tool is light in weight, simple and safe to operate and universal inside and outside, can greatly reduce the specifications of non-standard product tools, improves the universality of the tools, reduces the occupied area, lowers the cost, is not welded with the barrel, and avoids the adverse effect of conventional welding tool materials on the base metal performance of the barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a universal welding rounding tool for internal and external welding of a cylinder. Background Art

[0002] When manufacturing large-diameter pressure vessels, it is difficult to ensure the roundness of the cylinder due to the thin wall thickness of the cylinder, which is easy to deform. This causes great trouble for the subsequent cylinder welding and accessory assembly. The conventional practice is to manufacture different specifications of tooling and fixtures for containers of different diameters, and use a full circle of tooling to clamp the cylinder inside the tooling. This greatly increases the tooling cost of the container manufacturer, the weight of the tooling and fixture is too large, and increases the safety hazards when the tooling and fixture are hoisted; there are too many specifications of cylinder tooling, the cost is too high, and the factory storage costs are increased. For this reason, we propose a universal welding rounding tool for cylinder welding inside and outside. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, and the proposed cylinder welding internal and external universal welding rounding tooling is light in weight, simple and safe to operate, and the tooling is universal inside and outside, which can greatly reduce the tooling specifications of non-standard products, improve the versatility of the tooling, reduce space occupation, reduce costs, and do not weld with the cylinder, thereby avoiding the adverse effects of conventional welding tooling materials on the performance of the cylinder parent material.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A universal welding rounding tool for the inside and outside of the cylinder is designed, comprising a ring plate, a plurality of rectangular frames are fixedly installed at equal intervals on the upper surface of the ring plate, a top plate passes through the middle of the rectangular frame, a limiting plate is fixedly welded to one end of the top plate, a threaded hole is provided on the top of the rectangular frame, a tightening bolt is installed on the internal thread of the threaded hole, and the lower end of the tightening bolt is in contact with the top plate.

[0006] Preferably, a plurality of limiting grooves are provided at equal intervals on the upper surface of the ring plate, the center of the limiting groove points to the center of the ring plate, a through hole is provided in the center of the limiting groove, the rectangular frame is located inside the limiting groove, a threaded rod is fixedly connected to the lower surface of the rectangular frame, the threaded rod passes through the through hole, and a nut is threadedly installed at one end of the threaded rod.

[0007] Preferably, one side of the top plate is marked with scale.

[0008] Preferably, the top plate is an overall inclined structure.

[0009] Preferably, the annular plate includes two arc-shaped plates, and the two arc-shaped plates are connected and fixed by fasteners.

[0010] The universal welding rounding correction tool for cylinder welding inside and outside proposed by the utility model has the beneficial effects that: the top plate provided in the utility model can move in the rectangular frame, and at the same time it is squeezed and fixed by the tightening bolts, so as to realize the rounding function; through the cooperative connection of the threaded rod and the nut, the rectangular frame can be rotated 180°, that is, the top plate 7 is rotated 180°, so that the internal pressure cylinder of the tooling is changed to the external support cylinder of the tooling, thereby expanding the scope of application of the tooling, light weight, simple and safe operation, universal inside and outside the tooling, can greatly reduce the tooling specifications of non-standard products, improve the versatility of the tooling, reduce space occupation, reduce costs, and is not welded to the cylinder, avoiding the adverse effects of conventional welding tooling materials on the performance of the cylinder parent material.

[0011] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a first-view structural diagram of the universal welding rounding tool for internal and external cylinder welding proposed by the utility model;

[0014] Figure 2 This is a second-view structural diagram of the universal welding rounding tool for internal and external cylinder welding proposed by the utility model;

[0015] Figure 3 The utility model discloses a schematic diagram of the ring plate structure of the universal welding rounding tool for the inside and outside of the cylinder.

[0016] In the figure: a ring plate 1, a limiting groove 2, a through hole 3, a rectangular frame 4, a threaded hole 5, a limiting plate 6, a top plate 7, a tightening bolt 8, a threaded rod 9, and a nut 10. DETAILED DESCRIPTION

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

[0018] Reference Figure 1-3, a universal welding rounding tool for welding the inside and outside of the cylinder comprises a ring plate 1, a plurality of rectangular frames 4 are fixedly installed at equal intervals on the upper surface of the ring plate 1, a top plate 7 is passed through the middle of the rectangular frame 4, the top plate 7 is responsible for pushing the cylinder to the perfect circle position, the top plate 7 can move in the rectangular frame 4, and is squeezed and fixed by a tightening bolt 8, a limit plate 6 is fixedly welded at one end of the top plate 7, the limit plate 6 prevents the top plate 7 from sliding out of the rectangular frame 4 when it moves, a threaded hole 5 is provided on the top of the rectangular frame 4, a tightening bolt 8 is installed on the internal thread of the threaded hole 5, and the lower end of the tightening bolt 8 is in conflict with the top plate 7.

[0019] A plurality of limiting grooves 2 are provided at equal intervals on the upper surface of the ring plate 1, and the center of the limiting groove 2 points to the center of the ring plate 1. A through hole 3 is provided in the center of the limiting groove 2. The rectangular frame 4 is located inside the limiting groove 2. A threaded rod 9 is fixedly connected to the lower surface of the rectangular frame 4. The threaded rod 9 passes through the through hole 3. A nut 10 is threadedly installed at one end of the threaded rod 9. The limiting groove 2 can limit the shaking of the rectangular frame 4, thereby preventing the shaking of the top plate 7 and preventing deviations during the rounding process. The rectangular frame 4 can be rotated 180° through the coordinated connection between the threaded rod 9 and the nut 10, thereby changing the internal pressure cylinder of the tooling into the external support cylinder of the tooling, thereby expanding the scope of application of the tooling.

[0020] One side of the top plate 7 is marked with a scale to ensure that the top plates 7 are evenly distributed and in a uniform position.

[0021] The top plate 7 is an inclined structure as a whole, ensuring that the top plate 7 does not move when the tightening bolts 8 are pressed down.

[0022] The ring plate 1 includes two arc-shaped plates, which are connected and fixed by fasteners to facilitate disassembly, assembly and adjustment.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A universal welding rounding tool for cylinder body welding inside and outside, comprising a ring plate (1), characterized in that: A plurality of rectangular frames (4) are fixedly installed at equal intervals on the upper surface of the ring plate (1); a top plate (7) passes through the middle of the rectangular frame (4); a limiting plate (6) is fixedly welded to one end of the top plate (7); a threaded hole (5) is provided at the top of the rectangular frame (4); a tightening bolt (8) is installed on the internal thread of the threaded hole (5); and the lower end of the tightening bolt (8) contacts the top plate (7).

2. The universal welding rounding tool for cylinder welding inside and outside according to claim 1 is characterized in that: The upper surface of the ring plate (1) is provided with a plurality of limiting grooves (2) at equal intervals, the center of the limiting groove (2) points to the center of the ring plate (1), a through hole (3) is provided at the center of the limiting groove (2), the rectangular frame (4) is located inside the limiting groove (2), a threaded rod (9) is fixedly connected to the lower surface of the rectangular frame (4), the threaded rod (9) passes through the through hole (3), and a nut (10) is threadedly installed at one end of the threaded rod (9).

3. The universal welding and rounding tool for cylinder welding inside and outside according to claim 1 is characterized in that: One side of the top plate (7) is marked with scale.

4. The universal welding and rounding tool for cylinder welding inside and outside according to claim 1 is characterized in that: The top plate (7) is an overall inclined surface structure.

5. The universal welding and rounding tool for cylinder welding inside and outside according to claim 1 is characterized in that: The ring plate (1) comprises two arc-shaped plates, and the two arc-shaped plates are connected and fixed by fasteners.

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