CN221833648U - Alignment fixture convenient for welding - Google Patents

Abstract

The utility model relates to the technical field of welding fixtures, and specifically to an alignment fixture that is convenient for welding, including a base, a slide rail, and a clamping mechanism. The slide rail is installed horizontally and parallelly on the base, and the clamping mechanism is installed through the slide rail. A slide seat is provided at the bottom of the clamping mechanism, and a slide groove is provided below the slide seat. The slide groove cooperates with the slide rail, and a positive and negative threaded screw and a guide limit rod are installed through the slide seat. An upper clamp and a lower clamp are respectively installed through the positive and negative threaded screw and the guide limit rod. The upper clamp and the lower clamp are symmetrically arranged on both sides of the positive and negative threaded screw, and arc-shaped upper clamping parts and lower clamping parts are provided in the upper clamp and the lower clamp. The utility model can realize the clamping and fixing of pipe fittings during welding. In the clamping and fixing process, the alignment is completed when the fixing is completed. It can also realize the welding of pipe fittings of different diameters, so that it is more convenient to use in welding operations.

Description

An alignment fixture for easy welding

Technical Field

The utility model relates to the technical field of welding fixtures, in particular to an alignment fixture which is convenient for welding.

Background Art

Welding, also known as fusion, is a manufacturing process and technology that connects metals to each other through heating or high pressure. During the welding process, the welding objects need to be fixed and aligned to avoid displacement of the welding objects during the welding process, which would affect the welding effect.

Currently, during the welding process, a positioning fixture is often used to clamp and fix the workpiece, so as to facilitate the alignment of the workpiece and ensure the welding effect; in particular, during the pipe processing process, the pipes to be welded need to be adjusted to the same elevation so that the centers of the pipes to be welded are in the same horizontal plane, thereby achieving welding between different pipes and ensuring the welding effect.

Commonly used pipe alignment fixtures are generally used in two steps, namely, first fixing the pipe and then adjusting the center of the pipe. Repeated adjustments are required during use to ensure that the pipes are aligned with each other. The process is time-consuming and labor-intensive. Therefore, a welding alignment fixture that can simultaneously achieve clamping and alignment and is more convenient to use is an issue that needs to be urgently addressed.

Utility Model Content

The purpose of the utility model is to provide an alignment fixture that is convenient for welding in view of the deficiencies of the above-mentioned prior art, so as to achieve the purpose of being able to simultaneously realize clamping and alignment and being more convenient to use.

To achieve the above purpose, the utility model adopts the following technical solution: an alignment fixture that is convenient for welding, including a base, on which a clamping mechanism is slidably installed, two clamping mechanisms are provided and cooperate with each other, and a pipe fitting is clamped and fixed by the clamping mechanism.

Furthermore, a slide rail is arranged and installed on the base, there are two slide rails and they are arranged horizontally and in parallel, and the clamping mechanism is slidably installed on the slide rails.

Furthermore, a slide seat is arranged below the clamping mechanism, a slide groove is provided below the slide seat, and the slide groove cooperates with the slide rail.

Furthermore, a forward and reverse threaded screw is installed on the slide seat through a bearing, and a guide limit rod is installed on the slide seat, and a lower clamping plate and an upper clamping plate are installed through the forward and reverse threaded screw and the guide limit rod. The lower clamping plate and the upper clamping plate are respectively installed on both sides of the forward and reverse threaded screw and are symmetrically arranged.

Furthermore, a crank is installed above the forward and reverse threaded screws.

Furthermore, the lower clamping part is arranged in the lower clamping plate, and the upper clamping part is arranged in the upper clamping plate. The upper clamping part and the lower clamping part are arc-shaped, and the arc-shaped openings are arranged opposite to each other.

Furthermore, the arc and curvature of the lower clamping portion are consistent with those of the upper clamping portion.

Beneficial effects of the utility model:

1. The arc-shaped clamping part can clamp and fix pipes of different diameters, which is convenient for welding operations;

2. The pipe fittings are clamped and fixed by adjusting the positive and negative threaded screws, so that no matter what the diameter of the pipe fittings is, after fixing, their center positions must be on the same horizontal plane, thereby achieving the fixation and alignment of the welded pipe fittings, which is more convenient to use;

3. It can not only realize the alignment and welding of pipe fittings with the same diameter, but also can cooperate with pipeline connectors to realize the welding between pipe fittings of different diameters and the welding of elbows between pipe fittings, which is more convenient for actual operation.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a schematic diagram of the structure of the clamping mechanism of the utility model;

FIG. 3 is a schematic diagram of the state of the clamping mechanism of the utility model clamping a pipe.

The names corresponding to the marks in the figure are:

1. Base; 2. Slide rail; 3. Clamping mechanism; 31. Slide seat; 311. Slide groove; 32. Positive and negative threaded screw; 321. Bearing; 322. Crank; 33. Guide limit rod; 331. Limit block; 34. Lower clamping plate; 341. Lower clamping part; 35. Upper clamping plate; 351. Upper clamping part; 4. Pipe fittings.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

Embodiments of the present utility model:

As shown in Figures 1-3, in this embodiment, a slide rail 2 is provided, and the slide rail 2 is installed on the base 1. There are two slide rails 2, which are arranged horizontally and in parallel. A clamping mechanism 3 is slidably installed on the slide rail 2. There are two clamping mechanisms 3, which are used for clamping different pipe fittings 4 during welding.

A slide seat 31 is arranged below the clamping mechanism 3 , and the slide seat 31 matches with the slide rail 2 , wherein a slide groove 311 is arranged below the slide seat 31 , and the slide groove 311 matches with the slide rail 2 .

The two ends of the slide seat 31 are respectively installed with positive and negative threaded screws 32 and guide limit rods 33. During the process, the positive and negative threaded screws 32 are connected to the slide seat 31 through bearings 321 at the bottom, and the guide limit rod 33 is directly connected to the slide seat 31, and a lower clamping plate 34 and an upper clamping plate 35 are respectively installed through the positive and negative threaded screws 32 and the guide limit rod 33. The lower clamping plate 34 and the upper clamping plate 35 are symmetrically arranged on both sides of the positive and negative threaded screws 32, and a lower clamping portion 341 is provided in the lower clamping plate 34, and an upper clamping portion 351 is provided in the upper clamping plate 35. The lower clamping portion 341 and the upper clamping portion 351 are both arc-shaped, and the arc and curvature are consistent. The arcs of the upper clamping portion 351 and the lower clamping portion 341 are relatively arranged, and the pipe fitting 4 is fixed by the cooperation of the upper clamping portion 351 and the lower clamping portion 341.

The principle of this utility model is:

When the utility model is in use, the slide rail 2 is installed on the base 1 during the process. The base 1 can be a hardened concrete floor during the process, but it should be noted that the two slide rails 2 need to be kept parallel and horizontal, and then the slide seat 31 is installed through the slide rail 2. After the slide seat 31 is installed, the slide seat 31 can move stably and smoothly on the slide rail 2 through the push of external force.

After the slide 31 is installed, the forward and reverse threaded screws 32 and the guide limit rod 33 can be installed through the slide 31. During the process, the lower clamp 34 and the upper clamp 35 are first installed symmetrically, and then the forward and reverse threaded screws 32 are connected to the bearing 321 on the slide 31, and then the guide limit rod 33 is connected to the slide 31, and finally the crank 322 is installed above the forward and reverse threaded screws 32 (the crank 322 and the forward and reverse threaded screws 32 are connected in a detachable manner, such as bolts, fixing pins, etc., which is not difficult for technicians in this field to understand and will not be repeated here).

During welding, the utility model can be used in a telescopic room, so that the smoke generated by welding can be extracted in time. The telescopic room is a commonly used device for existing welding, which will not be described in detail. When in use, the pipe fittings 4 to be welded are fixed by the clamping mechanisms 3 on both sides respectively. During the process, the handle 322 is turned to separate and close the lower clamping plate 34 and the upper clamping plate 35, thereby clamping and fixing the pipe fitting 4. This process is not difficult for those skilled in the art to understand, so it will not be described in detail.

After the pipe fittings 4 on both sides are fixed, the centers of the pipe fittings 4 on both sides are on the same horizontal plane, so the two pipe fittings 4 to be welded can be aligned by pushing the clamping mechanisms 3 on both sides, thereby realizing the welding process.

It should be noted that the embodiments recorded in the accompanying drawings of the present invention are more suitable for fixing and welding of pipe fittings 4 of small mass, and it is advisable not to exceed 50 kg during the process. When the weight of the pipe fitting 4 is large, on the one hand, the clamping mechanism 3 is not easy to push after fixation, and on the other hand, the rotation of the crank 322 during the fixation process is also relatively laborious. In other embodiments of the present invention, an electric drive method of the forward and reverse thread screws 32 and the slide 31 can be adopted, such as using a motor to drive the forward and reverse thread screws 32 and using a hydraulic push-pull slide 31. It is not difficult for technical personnel in this field to understand and will not be repeated.

At the same time, the utility model is also convenient for welding pipe fittings 4 of different diameters during use. During the process, no matter how big or small the diameter of the pipe fitting 4 is, its center is on the same horizontal plane. At this time, the welding of pipe fittings 4 of different diameters can be achieved through the reducer. By arranging the two clamping mechanisms 3 at a certain angle (bending the slide rails 2), the welding of elbows between different pipe fittings 4 can also be achieved, which is convenient for use in welding operations.

Claims (7)

1. Alignment fixture convenient to welding, its characterized in that: the pipe fitting clamping device comprises a base (1), wherein clamping mechanisms (3) are slidably arranged on the base (1), the two clamping mechanisms (3) are matched with each other, and a pipe fitting (4) is clamped and fixed through the clamping mechanisms (3).

2. An alignment jig for facilitating welding as defined in claim 1, wherein: the base (1) is provided with two sliding rails (2), the sliding rails (2) are horizontally arranged in parallel, and the clamping mechanism (3) is slidably arranged on the sliding rails (2).

3. An alignment jig for facilitating welding as defined in claim 2, wherein: the lower part of the clamping mechanism (3) is provided with a sliding seat (31), the lower part of the sliding seat (31) is provided with a sliding groove (311), and the sliding groove (311) is matched with the sliding rail (2).

4. An alignment jig for facilitating welding as defined in claim 3, wherein: the sliding seat (31) is provided with a positive and negative screw rod (32) through a bearing (321), the sliding seat (31) is provided with a guide limit rod (33), the sliding seat is provided with a lower clamping plate (34) and an upper clamping plate (35) through the positive and negative screw rod (32) and the guide limit rod (33), and the lower clamping plate (34) and the upper clamping plate (35) are respectively arranged at two sides of the positive and negative screw rod (32) in a symmetrical mode.

5. An alignment jig for facilitating welding as defined in claim 4, wherein: a crank (322) is arranged above the front and back tooth screw rod (32).

6. An alignment jig for facilitating welding as defined in claim 4, wherein: the lower clamping plate (34) is provided with a lower clamping part (341), the upper clamping plate (35) is provided with an upper clamping part (351), and the upper clamping part (351) and the lower clamping part (341) are arranged in an arc-shaped manner and the arc-shaped openings are opposite.

7. An alignment jig for facilitating welding as defined in claim 6, wherein: the radian and the curvature of the lower clamping part (341) and the upper clamping part (351) are consistent.