CN111112929A

CN111112929A - Pipe welding roller device and pipe welding method

Info

Publication number: CN111112929A
Application number: CN201811274463.1A
Authority: CN
Inventors: 马晓平; 王大伟; 姚飚; 陈艳
Original assignee: JIANGSU MODERN SHIPBUILDING TECHNOLOGY Ltd
Current assignee: JIANGSU MODERN SHIPBUILDING TECHNOLOGY Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2020-05-08

Abstract

The invention discloses a pipe welding roller device, which comprises a metal wheel, a rolling bearing, a bracket and a bottom plate, wherein the pipe welding roller device is used for supporting and roll-welding pipes during welding; the metal wheel central shaft is welded on the inner ring of the rolling bearing, so that the inner ring of the metal wheel can freely roll; the outer ring of the rolling bearing is welded on the bracket, so that the outer ring of the metal wheel is fixed; the bottom plate is connected with the support, and the stability and the integrity of the whole roller device are guaranteed. The device plays an important role in improving the welding speed of the large-diameter pipe, increasing the welding rolling flexibility of the large-diameter pipe and improving the welding quality of the pipe. The invention also discloses a pipe welding method using the pipe welding roller device.

Description

Pipe welding roller device and pipe welding method

Technical Field

The invention belongs to the technical field of pipe processing, manufacturing and execution, and particularly relates to a pipe welding roller device and a method for welding pipes by using the device.

Background

The pipe processing workshop is a processing production workshop for all marine pipe parts in a shipyard. Due to the complex ship system, the number of pipes required by ship manufacturing is huge, the variety is various, and the processing technology and the performance requirements of each pipe are different. The production capacity and the progress of the pipe processing workshop directly influence the production progress of the whole ship, and the requirement for the pipes can be met in time, which is a difficult problem for a plurality of ship enterprises.

Although China vigorously develops intelligent manufacturing in recent years, the ship industry belongs to discrete manufacturing industry, the production environment is relatively complex, the relevance of each manufacturing process in production is relatively strong, many emergencies exist, manual operation and semi-automatic and numerical control equipment operation are crossed and parallel, and the quality and the capability of manual operators are different. Therefore, at present, the production of pipes in most domestic shipyards is still in a manual welding mode, and most manual welding operations in shipyards are in a stage without tooling equipment, and pipes are directly tiled on the ground or on a platform for welding, and the problems existing in the mode are mainly as follows:

1) the welding speed of the pipe cannot be guaranteed, and the welding speed of the pipe is reduced because the pipe is heavier, laboursome rotation is performed and the speed is lower when an operator needs to rotate the pipe for welding after welding a transverse welding surface because the pipe is tiled on the ground or on a platform;

2) the tube needs to occupy extra area when rotating on the ground or on the platform, which is unfavorable for the field planning of the welding station;

3) when the pipe rotates on the ground or on the platform, a welding operator cannot fix the welding position and needs to continuously change the welding direction, so that the welding efficiency is reduced;

4) the welding quality of the pipe cannot be guaranteed, the position of the pipe is changed continuously due to the fact that the pipe rotates on the ground or on the platform, and an operator needs to move the position continuously to complete welding of the pipe, so that the welding quality of the pipe can be affected.

Disclosure of Invention

The invention aims to provide a pipe welding roller device and a pipe welding method, which have very important functions of improving the welding speed of a large-diameter pipe, increasing the welding rolling flexibility of the large-diameter pipe and improving the welding quality of the pipe.

In order to achieve the above purpose, the solution of the invention is:

a pipe welding roller device comprises a metal wheel, a rolling bearing, a fixing buckle, a bracket and a bottom plate, wherein the pipe welding roller device is used for supporting and roll-welding pipes during welding; the metal wheel central shaft is welded on the inner ring of the rolling bearing, so that the inner ring of the metal wheel can freely roll; the outer ring of the rolling bearing is welded on the support, so that the outer ring of the metal wheel is fixed. The bottom plate is connected with the support, guarantees whole roller device's stability and wholeness, and during the pipe welding, including following step:

the method comprises the following steps: the pipe to be welded is hung on the four rollers by a small workshop crane, and the end face of the pipe to be welded is upward, so that the welding convenience is ensured;

step two: an operator utilizes a welding gun to weld the pipe, and when the welding of the transverse welding surface is finished, the pipe is rotated by hand, so that the welding end surface of the non-welding area faces upwards, and the welding convenience is ensured;

step three: continuously circulating the step two until the welding surfaces of the whole pipe are completely welded, and hoisting the pipe away from the roller welding machine device by using a small crane in a workshop

Furthermore, the metal wheel central shaft penetrates through the center of the rolling bearing and is connected with the rolling bearing in a welding mode.

Furthermore, the rolling bearing and the fixing buckle are in a full-wrapping type, the outer ring of the rolling bearing is wrapped and fixed by the fixing buckle, and the fixing buckle is screwed on the support by screws.

Furthermore, the support bracket adopts an arch design and is welded with the joint of the bottom plate to play a role in fixing and supporting.

Furthermore, the rolling bearing is vertically placed above the plane of the support bracket and is fixed on the bracket by using a fixing buckle.

Furthermore, the support bracket and the bottom plate are connected in a welding mode.

Furthermore, four corners of the bottom plate are fixedly connected with the ground by four screws.

After the scheme is adopted, the invention plays a role in supporting and roll welding when the pipe is welded; the metal wheel central shaft is welded on the inner ring of the rolling bearing, so that the inner ring of the metal wheel can freely roll; the outer ring of the rolling bearing is welded on the support, so that the outer ring of the metal wheel is fixed. The invention has very important functions for improving the welding speed of the large-diameter pipe, increasing the welding rolling flexibility of the large-diameter pipe and improving the welding quality of the pipe.

Drawings

FIG. 1 is a schematic view of the construction of the pipe welding roller device of the present invention;

fig. 2 is a flow chart of the pipe welding process of the pipe welding roller device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.

As shown in fig. 1, the pipe welding roller device of the present invention has a schematic structural diagram, and it can be seen from the figure that the pipe welding roller device of the present invention comprises a metal wheel, a rolling bearing, a fixing buckle, a bracket and a bottom plate, and the pipe welding roller device is used for supporting and roll-welding pipes during welding; the metal wheel central shaft is welded on the inner ring of the rolling bearing, so that the inner ring of the metal wheel can freely roll; the outer ring of the rolling bearing is welded on the support, so that the outer ring of the metal wheel is fixed. The bottom plate is connected with the support, and the stability and the integrity of the whole roller device are guaranteed.

As a specific example of the invention, an example of said embodiment is shown in the attached drawings, from which it can be seen that the welding of the pipes comprises the following steps:

(1) an operator cleans the operation radius area to vacate an operation space for the welding of the next pipe, and checks whether the screw and the welding position of the pipe welding roller device are fastened or not, so that the operation safety of the pipe welding is ensured;

(2) the method comprises the following steps that a pipe to be welded is hung among four idler wheels by a workshop crane, the placing position of the pipe needs to ensure that the gravity center of the pipe is located among the four idler wheels so as to ensure the welding stability, and the end face of the pipe needs to be upwards welded so as to ensure the welding convenience;

(3) when an operator performs welding, the upper body of the operator needs to be kept upright and slightly forward in a sitting posture, so that the convenience and the efficiency of welding are ensured;

(4) an operator utilizes a welding gun to weld the end face of the pipe, when the welding of the transverse welding face is finished, the pipe needs to be rotated by hands, so that the welding end face of the non-welding area faces upwards, and the welding end face of the welding position at each time is ensured to be always upwards;

(5) continuously circulating the step (4) until the welding surfaces of the whole pipe are completely welded;

(6) and hoisting the welded pipe away from the pipe welding roller device by using the workshop small crane again.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is intended to be protected by the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pipe welding roller device which characterized in that: the pipe welding roller device is used for supporting and roll welding pipes during welding; the metal wheel central shaft is welded on the inner ring of the rolling bearing, so that the inner ring of the metal wheel can freely roll; the outer ring of the rolling bearing is welded on the bracket, so that the outer ring of the metal wheel is fixed; the bottom plate is connected with the support, and the stability and the integrity of the whole roller device are guaranteed.

2. The pipe welding roller apparatus of claim 1, wherein: the metal wheel central shaft penetrates through the center of the rolling bearing and is connected with the rolling bearing in a welding mode.

3. The pipe welding roller apparatus of claim 1, wherein: the rolling bearing is vertically placed on the plane of the bracket and is fixed on the bracket by using a fixing buckle.

4. A pipe welding roller assembly as defined in claim 3, wherein: the rolling bearing and the fixing buckle are in a full-wrapping type, the outer ring of the rolling bearing is wrapped and fixed by the fixing buckle, and the fixing buckle is screwed on the support by screws.

5. The pipe welding roller apparatus of claim 1, wherein: the bracket is of an arched design.

6. The pipe welding roller apparatus of claim 1, wherein: the support and the bottom plate are connected in a welding mode.

7. The pipe welding roller apparatus of claim 1, wherein: four angles of the bottom plate are fixedly connected with the ground by four screws.

8. A pipe welding method using a pipe welding roller device according to claim 1, comprising the steps of:

step 1, an operator cleans up an operation radius area to vacate an operation space for welding the next pipe, and checks whether a screw and a welding position of a pipe welding roller device are fastened or not, so that the operation safety of pipe welding is ensured;

step 2, hanging the pipe to be welded among the four rollers by a small workshop crane, enabling the placing position of the pipe to meet the condition that the center of gravity of the pipe is located among the four rollers so as to ensure the welding stability, and enabling the end face of the welding position of the pipe to be upward so as to ensure the welding convenience;

step 3, when an operator performs welding, keeping the upper body upright and slightly leaning forward in a sitting posture so as to ensure the welding convenience and the welding efficiency;

step 4, an operator uses a welding gun to weld the end face of the pipe, and when the welding of the transverse welding face is finished, the pipe is rotated by hand, so that the welding end face of the non-welding area faces upwards, and the welding end face of the welding position at each time is ensured to face upwards all the time;

step 5, continuously circulating the step 4 until the welding surfaces of the whole pipe are completely welded;

and 6, hoisting the welded pipe away from the pipe welding roller device by using the workshop crane again.