CN204565487U - A kind of isometrical steel elbow welding special fixture - Google Patents

Abstract

The utility model discloses a special fixture for welding the elbow of an equal-diameter steel pipe, which belongs to the field of welding auxiliary devices. The special fixture includes bracket, base, handle, lead screw, steel pipe upper and lower positioning blocks and elbow upper and lower positioning blocks; the base is mainly used to fix the special fixture on the workbench or other places; the lower positioning block is fixed on the corresponding bracket, The upper positioning block and the corresponding lower positioning block are relatively arranged and centered, the handle is rotated, the screw rotates, and the upper positioning block is controlled to move up and down, thereby completing the positioning and clamping of the steel pipe elbow to be welded. The special fixture has a simple structure and is easy to use. It can effectively ensure that the center line of the steel pipe elbow to be welded is tangent and the interface surfaces are aligned, which improves the welding quality, improves the work efficiency, and reduces the labor intensity of the workers. The fixture is easy to carry, Economical and practical.

Description

A special fixture for welding elbows of equal diameter steel pipes

technical field

The utility model relates to the field of welding auxiliary devices, in particular to a special fixture for welding elbows of equal-diameter steel pipes.

Background technique

Welding is a connection method that is widely used in machinery, aviation, transportation, chemical and pipeline industries. Steel pipe elbow welding is an important part of it.

Welding steel pipe elbows with equal diameters not only needs to meet the strength and pressure requirements, but also requires aesthetics. The welding interface of steel pipe and elbow should be flush and the center line should be tangent. Under many conditions, due to the limitation of construction conditions, it is difficult to meet the requirements that the interface surface of the steel pipe elbow is even and the center line is tangent.

In actual operation, relying on the experience of the master worker, spot welding is performed first and then corrected with tools such as squares, repeated many times until the interface surface is flush and the center line is tangent. This welding method has low work efficiency, slow welding progress, high labor intensity of workers, waste of working hours, and seriously affects welding quality and aesthetics.

Contents of the invention

The purpose of the utility model is to provide a simple structure, practical and convenient special fixture for the welding of equal-diameter steel pipe elbows, which mainly solves the problems that the joints of equal-diameter steel pipe elbows are not easy to be even, the center lines are not easy to be tangent, and the work efficiency is low.

The technical solution adopted by the utility model to solve the technical problem is: the special fixture for welding the elbow of equal-diameter steel pipe, the special fixture includes a steel pipe support, an elbow support, a base, a handle, a lead screw, steel pipe upper and lower positioning blocks and Elbow positioning block up and down. The base is mainly used to fix the special fixture on the workbench or other places; the lower positioning block of the steel pipe is fixed on the steel pipe support and arranged in the center relative to the upper positioning block of the steel pipe, and the lower positioning block of the elbow is fixed on the elbow support and aligned with the elbow The positioning blocks on the head are relatively arranged and centered. Both the positioning blocks on the steel pipe and the positioning blocks on the elbow are connected with the lead screw. When the handle is rotated, the screw rotates, and the upper positioning block is controlled to move up and down, so as to adjust the gap to be welded. The steel pipe elbow is positioned and clamped.

The beneficial effects of the utility model are: the utility model can conveniently and quickly locate and clamp the steel pipe elbow to be welded, effectively realize that the interface surface of the steel pipe elbow is even, and the center line is tangent, and it is also very convenient to adjust the steel pipe elbow The gap between the interfaces improves the welding quality, improves the work efficiency, reduces the labor intensity of workers, and saves a lot of working hours; the fixture has a simple structure, is convenient to use, and is economical and practical.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of another perspective structure of the utility model.

Fig. 3 is a front structural schematic view of the utility model.

FIG. 4 is a schematic view of the right view of FIG. 3 .

In the figure: 1 base, 2 lower positioning block of steel pipe, 3 lower positioning block of elbow, 4 upper positioning block of steel pipe, 5 upper positioning block of elbow, 6 steel pipe support, 7 elbow support, 8 lead screw, 9 handle, 10 waiting Welded steel pipe elbow, 11 positioning lines.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the schematic embodiments and descriptions are only used to explain the utility model, but not as a limitation to the utility model.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a special fixture for welding steel pipe elbows with equal diameters, its structure includes a base 1, a steel pipe lower positioning block 2, an elbow lower positioning block 3, and a steel pipe upper positioning block 4 , positioning block 5 on the elbow, steel pipe support 6, elbow support 7, leading screw 8, handle 9, steel pipe elbow 10 to be welded. The base 1 is mainly used to fix the special fixture on the workbench or other places; the lower positioning block 2 of the steel pipe is fixed on the steel pipe support 6 and arranged in the center relative to the upper positioning block 4 of the steel pipe, and the lower positioning block 3 of the elbow is fixed on the elbow On the bracket 7 and relative to the positioning block 5 on the elbow, the positioning block 4 on the steel pipe and the positioning block 5 on the elbow are connected together with the lead screw 8. When the handle 9 is rotated, the lead screw 8 rotates to control the upper position of the steel pipe. The positioning block 4 and the positioning block 5 on the elbow move, thereby positioning and clamping the steel pipe elbow 10 to be welded with the gap adjusted.

When the utility model is in use, first rotate the handle 9 to allow the upper positioning block 4 of the steel pipe and the upper positioning block 5 of the elbow to move upward, and put the steel pipe elbow 10 to be welded into the lower positioning block 2 of the steel pipe through the opening on the side of the special fixture. In the V-shaped groove of the lower positioning block 3 of the elbow, adjust the weld size between the elbow 10 of the steel pipe to be welded and ensure that the end surface of the elbow is flush with the positioning line 11, rotate the handle 9, and the screw 8 rotates to allow the steel pipe Both the upper positioning block 4 and the upper positioning block 5 of the elbow move down until the steel pipe elbow 10 to be welded is clamped, and then the steel pipe elbow 10 to be welded is spot welded on the side of the fixture, and the handle 9 is rotated to loosen the steel pipe for positioning. Position block 5 on the block 4 and the elbow, take out the steel pipe elbow 10 after spot welding, and then weld until completion. The design of the special fixture improves work efficiency, reduces labor intensity of workers, improves welding quality, and is economical and practical.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. All equivalent structures or equivalent transformations made by using the abstract, instructions and drawings of the utility model, or directly or indirectly used in other related technical fields, are all included in the patent protection scope of the utility model.

Claims (4)

1. an isometrical steel elbow welding special fixture, this special fixture comprises support, base, handle, leading screw, the upper and lower locating piece of steel pipe and the upper and lower locating piece of elbow, it is characterized in that: base is designed with through hole, steel pipe support is fixed with locating piece under steel pipe, elbow support is fixed with locating piece under elbow, locating piece two on steel pipe and with locating piece Relative distribution under steel pipe and centering, locating piece one on elbow and with locating piece Relative distribution under elbow and centering.

2. one according to claim 1 isometrical steel elbow welding special fixture, it is characterized in that: the cross section of the upper and lower locating piece of steel pipe and the upper and lower locating piece of elbow is V-type, its angle is 120 degree.

3. one according to claim 1 isometrical steel elbow welding special fixture, is characterized in that: on steel pipe, on locating piece and elbow, locating piece is all designed with and picks up the ears and fit with rack inner wall.

4. one according to claim 1 isometrical steel elbow welding special fixture, is characterized in that: side and the top design of steel pipe support and elbow support have reinforcement.