Welding positioning device for seamless steel pipe elbow and flange

Abstract

The utility model relates to a welding positioning device for an elbow and a flange of a seamless steel pipe, and aims to solve the technical problems that the current position alignment operation of the elbow steel pipe and the flange is tedious, time is wasted, and the welding efficiency is influenced, the welding positioning device comprises a bottom plate, and a pushing assembly and a fixing frame are fixedly arranged on the upper side face of the bottom plate; limiting strips are fixedly arranged on a front side plate and a rear side plate of the right side face of the fixing frame, a positioning assembly is movably installed between the two limiting strips and comprises a movable plate, and a positioning insertion column is fixedly arranged on the side face, close to the flange, of the movable plate; the upper surface of the side end of the positioning inserting column is provided with an arc-shaped inclined surface which is the same as the inner wall of the steel pipe elbow in shape. The steel pipe elbow positioning and aligning device has the advantages of being high in positioning and aligning speed, simple to operate, capable of effectively saving time needed by aligning, capable of being suitable for aligning and connecting steel pipe elbows of different sizes and flanges, and high in flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe elbow and flange positioning connection, in particular to a welding positioning device for seamless steel pipe elbow and flange. Background Art

[0002] Flange, also known as flange flange or flange. Flange is a part that connects shafts to each other and is used to connect pipe ends. Generally, pipe connections are completed through flange structure cooperation, but pipe elbows and flanges are usually welded together, so a positioning device is needed to limit the docking position.

[0003] The existing welding positioning device needs to limit and fix the positions of the steel pipe elbow and the flange when fixing the two, and then adjust the position of the inner ring of the flange according to the position of the pipe mouth of the steel pipe elbow so that the two are aligned and combined. This makes the positioning operation cumbersome, wastes time, and affects the efficiency of welding. In view of this, we propose a welding positioning device for seamless steel pipe elbows and flanges. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a welding positioning device for seamless steel pipe elbows and flanges to solve the technical problems that the current alignment operation of the elbow steel pipe and the flange position is cumbersome, wastes time, and affects the welding efficiency.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: design a welding positioning device for a seamless steel pipe elbow and a flange, comprising a bottom plate, a pushing assembly and a fixing frame are fixedly arranged on the upper side of the bottom plate, and the pushing assembly is fitted and connected with the steel pipe elbow, and the front and rear side plates on the right side of the fixing frame are fixedly arranged with limiting strips, and a positioning assembly is movably installed between the two limiting strips;

[0006] The positioning assembly includes a movable plate, on the side of the movable plate close to the flange, a positioning column is fixedly provided, the upper surface of the side end of the positioning column is provided with an arc-shaped inclined surface with the same shape as the inner wall of the steel pipe elbow, and the positioning column is provided with an annular groove on the outer wall of the connection between the steel pipe elbow and the flange.

[0007] Preferably, the pushing assembly includes an electric push rod, the telescopic end of the electric push rod is fixed with a push plate that fits with the upper surface of the base plate, a push block is installed on the side of the push plate close to the steel pipe elbow, and a groove corresponding to the outer wall of the steel pipe elbow is provided on the side of the push block.

[0008] Preferably, a limiting plate is fixedly provided on the side surface of the push plate that is in contact with the push block, and a limiting groove combined with the limiting plate is provided on the side wall of the push block.

[0009] Preferably, a movable groove is provided from top to bottom on the side of the limit strip close to the movable plate, and a movable block combined with the movable groove is fixedly provided on the side of the movable plate.

[0010] Preferably, a fixing block is fixedly provided on a side surface of the fixing frame close to the flange, and an extrusion screw corresponding to the flange is installed on the side wall of the fixing block through a threaded hole.

[0011] Preferably, a positioning strip is fixedly provided on the upper surface of the bottom plate, and a positioning groove corresponding to the positioning strip is opened on the side plate of the push plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model facilitates pushing the steel pipe elbow to the position of the flange through the setting of the pushing component. The flange can limit the position by being sleeved on the outside of the positioning component. The positioning component is inserted into the steel pipe elbow to complete the docking work of the flange and the steel pipe elbow, and the pipe mouth can be aligned with the perforation position, so that the effect of rapid positioning and combination can be achieved, and the connection position can be fixed under the thrust of the pushing component, which is convenient for welding operation, thereby reducing the time required for alignment and speeding up the welding speed.

[0014] 2. The arc-shaped inclined surface of the positioning column on the positioning component can be adapted to the inner wall of the steel pipe elbow, so that the limiting effect can be activated. At the same time, the annular groove set on the outer wall of the positioning column can avoid contact with the welding position of the steel pipe elbow and the flange, thereby preventing the solder liquid from sticking the positioning column together, making disassembly and assembly operations convenient.

[0015] 3. The push block in the utility model is provided with a groove corresponding to the outer wall of the steel pipe elbow, which can achieve the effect of limited pushing and avoid deviation, and can ensure the stability of the moving position. At the same time, the detachable structure can select the push block of the corresponding groove size according to the different sizes of steel pipe elbows, which is convenient for use. The positioning component is also convenient for disassembly and assembly through the cooperation with the movable groove and the movable block. It can also be replaced according to the size of the flange aperture, so as to improve the flexibility of the structural cooperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the assembly and use structure of the utility model;

[0017] Figure 2 It is a partial structural cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the front side of the overall structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the rear structure of the overall structure of the utility model.

[0020] In the figure: 1. bottom plate; 101. positioning bar; 2. pushing assembly; 201. electric push rod; 202. pushing plate; 203. pushing block; 204. slot; 205. limiting plate; 206. limiting slot; 207. positioning slot; 3. fixing frame; 4. limiting bar; 401. movable slot; 5. positioning assembly; 501. movable plate; 502. positioning pin; 503. arc slope; 504. annular groove; 6. fixing block; 601. extrusion screw. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Embodiment: A welding positioning device for seamless steel pipe elbow and flange, see Figures 1 to 4 , including a bottom plate 1, a pushing component 2 and a fixing frame 3 are fixedly provided on the upper side of the bottom plate 1, and the pushing component 2 is fitted and connected with the steel pipe elbow, and the position of the steel pipe elbow can be conveniently adjusted through the pushing component 2, and the front and rear side plates on the right side of the fixing frame 3 are fixedly provided with limiting strips 4, and a positioning component 5 is movably installed between the two limiting strips 4. The position of the flange can be limited by the setting of the positioning component 5, and the position of the steel pipe elbow and the flange can be fixed after the positioning component 5 is inserted into the steel pipe elbow, so as to achieve the effect of rapid positioning and docking;

[0023] The positioning assembly 5 includes a movable plate 501, on the side of the movable plate 501 close to the flange, a positioning column 502 is fixedly provided, and an arc-shaped inclined surface 503 with the same shape as the inner wall of the steel pipe elbow is provided on the upper surface of the side end of the positioning column 502. The positioning column 502 is located on the outer wall of the connection between the steel pipe elbow and the flange and is provided with an annular groove 504. The position of the positioning column 502 can be limited by the movable plate 501. The setting of the arc-shaped inclined surface 503 on the positioning column 502 can enhance the fit with the inner wall of the steel pipe elbow. The special-shaped combination can improve the limiting effect of docking. The setting of the annular groove 504 can avoid contact with the welding point between the steel pipe elbow and the flange, avoid the phenomenon of solder connection, and facilitate the separation of the steel pipe elbow and the positioning column 502.

[0024] Specifically, the pushing component 2 includes an electric push rod 201, and the telescopic end of the electric push rod 201 is fixedly provided with a push plate 202 that fits with the upper surface of the base plate 1. A push block 203 is installed on the side of the push plate 202 close to the steel pipe elbow, and a groove 204 corresponding to the outer wall of the steel pipe elbow is provided on the side of the push block 203; the movement of the push block 203 can be controlled by the cooperation of the electric push rod 201 and the push plate 202, which makes it easy to adjust the distance between the steel pipe elbow and the flange. The setting of the groove 204 can limit the position of the steel pipe elbow and maintain the effect of lateral movement.

[0025] Furthermore, a limit plate 205 is fixedly provided on the side where the push plate 202 and the push block 203 are in contact, and a limit groove 206 combined with the limit plate 205 is opened on the side wall of the push block 203; the cooperation between the limit plate 205 and the limit groove 206 facilitates the disassembly and assembly of the push block 203, so that the push block 203 of the appropriate size of the slot 204 can be selected according to the size of the steel pipe elbow.

[0026] Furthermore, a movable groove 401 is opened from top to bottom on the side surface of the limit strip 4 close to the movable plate 501, and a movable block 505 combined with the movable groove 401 is fixed on the side of the movable plate 501; the movable groove 401 cooperates with the movable block 505 to facilitate the up and down movement of the movable plate 501, which makes it convenient to replace positioning pins 502 of different sizes and to limit the positions of flanges of different sizes.

[0027] Furthermore, a fixing block 6 is fixedly provided on one side surface of the fixing frame 3 close to the flange, and an extrusion screw 601 corresponding to the flange is installed on the side wall of the fixing block 6 through a threaded hole; the two sides of the flange are limited by fitting to achieve a clamping effect, and the threaded fitting can adjust the clamping size.

[0028] Furthermore, a positioning strip 101 is fixedly provided on the upper surface of the bottom plate 1, and a positioning groove 207 corresponding to the positioning strip 101 is provided on the side plate of the push plate 202; the stability of the movement of the push plate 202 can be enhanced through the cooperation.

[0029] Working principle: first place the steel pipe elbow on the base plate 1, and then put the flange of corresponding size on the positioning column 502 on the positioning component 5, and then the steel pipe elbow can be pushed to move by the pushing component 2. While moving, the positioning component 5 can be pulled upward to align the positioning column 502 with the pipe mouth on the steel pipe elbow. In this way, when the steel pipe elbow moves, the positioning column 502 can be inserted into the inside of the steel pipe elbow, so that the steel pipe elbow and the flange are in contact and combined, thereby completing the alignment and docking operation, and the positions of the two can be kept fixed under the limit of the positioning column 502, which is convenient for welding operations. When it is necessary to align and connect steel pipe elbows and flanges of different sizes, the push block 203 and the positioning column 502 can be replaced, and the spacing between the two extrusion screws 601 can be adjusted at the same time, so that the positioning and docking work of steel pipe elbows and flanges of different sizes can be met, thereby improving the flexibility of structural coordination and saving the time required for alignment operations.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A welding positioning device for seamless steel pipe elbows and flanges, characterized in that: It comprises a bottom plate (1), a pushing assembly (2) and a fixing frame (3) are fixedly provided on the upper side of the bottom plate (1), and the pushing assembly (2) is closely connected to the steel pipe elbow, and limiting strips (4) are fixedly provided on the front and rear side plates on the right side of the fixing frame (3), and a positioning assembly (5) is movably installed between the two limiting strips (4); The positioning assembly (5) comprises a movable plate (501), a positioning column (502) being fixedly provided on the side of the movable plate (501) close to the flange, an arc-shaped inclined surface (503) having the same shape as the inner wall of the steel pipe elbow being provided on the upper surface of the side end of the positioning column (502), and an annular groove (504) being provided on the outer wall of the positioning column (502) at the connection between the steel pipe elbow and the flange.

2. The welding positioning device for seamless steel pipe elbow and flange according to claim 1, characterized in that: The pushing assembly (2) comprises an electric push rod (201), the telescopic end of the electric push rod (201) being fixedly provided with a push plate (202) which is in contact with the upper surface of the bottom plate (1), a push block (203) being installed on the side of the push plate (202) close to the steel pipe elbow, and a slot (204) corresponding to the outer wall of the steel pipe elbow being provided on the side of the push block (203).

3. The welding positioning device for seamless steel pipe elbow and flange according to claim 2, characterized in that: A limiting plate (205) is fixedly provided on the side surface where the push plate (202) and the push block (203) are in contact, and a limiting groove (206) combined with the limiting plate (205) is provided on the side wall of the push block (203).

4. The welding positioning device for seamless steel pipe elbow and flange according to claim 1, characterized in that: A movable groove (401) is provided from top to bottom on the side of the limit strip (4) close to the movable plate (501), and a movable block (505) combined with the movable groove (401) is fixedly provided on the side of the movable plate (501).

5. The welding positioning device for seamless steel pipe elbow and flange according to claim 1, characterized in that: A fixing block (6) is fixedly provided on a side surface of the fixing frame (3) close to the flange, and an extrusion screw (601) corresponding to the flange is installed on the side wall of the fixing block (6) through a threaded hole.

6. The welding positioning device for seamless steel pipe elbow and flange according to claim 2, characterized in that: A positioning strip (101) is fixedly provided on the upper surface of the bottom plate (1), and a positioning groove (207) corresponding to the positioning strip (101) is provided on the side plate of the push plate (202).

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