CN115971171A - A method for cleaning the inner wall of a welded part and its annular channel - Google Patents

Abstract

The application discloses a welding piece and a method for cleaning the inner wall of the annular channel. The method for cleaning the inner wall of the annular channel includes: after the workpiece body is fixed on the rotating device, adjusting the port orientation of the annular cavity to avoid leakage of the cleaning ball; checking the state of the cleaning ball , to avoid the mutual jamming of the cleaning balls; when all the cleaning balls are in a free state, the rotating device will drive the workpiece body to rotate back and forth, so that the cleaning balls will rub against the annular cavity; when the workpiece body stops rotating, the high-pressure water gun will move toward the ring Water is flushed inside the cavity to clean up the slag inside the annular cavity. The present application realizes efficient slag removal for the inner wall of the annular cavity of the weldment through the above method.

Description

A method for cleaning the inner wall of a welded part and its annular channel

technical field

The application relates to the technical field of slag removal of welded parts, in particular to a method for cleaning the inner wall of a welded part and an annular channel thereof.

Background technique

During the welding process of the welded parts, there must be welding nodules and welding slag. At the same time, due to long-term corrosion, there will be rust spots. Generally, the external welding slag is usually removed by manual tapping or sandblasting. The internal weld of large tubular parts is also It can be removed by manual tapping, sandblasting or high-pressure water gun. However, the existing slag removal methods, whether it is knocking or high-pressure water guns or scraping with welding machine strip steel wires, cannot remove the welded parts with annular cavities, and the pressure of the high-pressure water guns is not enough to remove the weld on the surface. Therefore, it is impossible to remove the defects on the clean welding surface; the knocking method can only remove the welding slag within the range of manual operation, but it cannot remove the cavity inside the part; the welding seam machine wire and sandblasting removal methods also have parts Disadvantages of inaccessibility of small internal cavities.

Therefore, how to provide a method for removing the welding slag in the annular channel of the weldment is a problem to be solved by those skilled in the art.

Contents of the invention

The purpose of this application is to provide a method for cleaning the inner wall of the welded part and its annular channel, which can realize efficient slag removal of the welded part.

In order to achieve the above purpose, the application provides a method for cleaning the inner wall of the annular channel, which is applied in the annular cavity of the weldment, including: the weldment includes: a workpiece body, a rotating device, several cleaning balls and high-pressure water guns; the surface of the workpiece body is provided with There is a gap, and there is an annular cavity inside, and the openings at both ends of the annular cavity are respectively set on the two sections of the gap; the cleaning ball is set in the annular cavity, the rotating device is used to drive the workpiece body to rotate, and the high-pressure water gun is used to Spray water inside the annular cavity, and the cleaning methods include:

After the workpiece body is fixed on the rotating device, adjust the port orientation of the annular cavity to avoid the leakage of the cleaning ball;

Check the status of the cleaning balls to avoid mutual jamming between the cleaning balls;

When all the cleaning balls are in a free state, the rotating device will drive the workpiece body to rotate back and forth, so that the cleaning balls rub against the annular cavity;

After the workpiece body stops rotating, the high-pressure water gun flushes water toward the inside of the annular cavity to clean up the slag inside the annular cavity.

In some embodiments, checking the state of the cleaning balls and preventing the cleaning balls from being stuck includes: repeatedly tilting the workpiece body until the cleaning balls are separated.

In some embodiments, when all the cleaning balls are in a free state, the rotating device will drive the workpiece body to reciprocate, so that the step of cleaning the balls to rub against the annular cavity includes: controlling the rotation strength of the workpiece body so that the cleaning balls can move around the entire It moves in the annular cavity and does not come out of the annular cavity.

A weldment, suitable for any one of the methods for cleaning the inner wall of the annular channel, characterized in that it includes: a workpiece body, a rotating device, several cleaning balls and a high-pressure water gun;

There is a gap on the surface of the workpiece body, and an annular cavity is opened inside, and the openings at both ends of the annular cavity are respectively set on the two sections of the gap; the cleaning ball is set in the annular cavity, and the rotating device is used to drive the workpiece body to rotate. The high-pressure water gun is used for spraying water towards the inside of the annular cavity.

In some embodiments, the diameter of the cleaning ball is smaller than the radius of the annular cavity

In some embodiments, the cleaning ball is set to iron sand

In some embodiments, the rotating device includes: a rotating shaft and a clamping part installed on the rotating shaft; the clamping part is used to fix and clamp the workpiece body, and the rotating shaft is used to drive the rotating shaft to rotate.

With respect to the above-mentioned background technology, a method for cleaning the inner wall of the annular channel of the present application includes: after the workpiece body is fixed on the rotating device, adjusting the port orientation of the annular cavity to avoid leakage of the cleaning ball; checking the state of the cleaning ball to avoid the cleaning ball When all the cleaning balls are in a free state, the rotating device will drive the workpiece body to rotate back and forth, so that the cleaning balls will rub against the annular cavity; when the workpiece body stops rotating, the high-pressure water gun will flush water towards the interior of the annular cavity , to clean the slag inside the annular cavity. The present application realizes efficient slag removal for the inner wall of the annular cavity of the weldment through the above method.

The present application also provides a welded part, which has the above-mentioned beneficial effects, and will not be further described herein.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is the flow chart of the steps of the method for cleaning the inner wall of the annular passage provided by the embodiment of the present application;

Fig. 2 is the structural representation of the weldment provided by the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a rotating device provided by an embodiment of the present application.

in:

1-workpiece body, 2-cleaning ball, 3-annular cavity, 4-holding piece, 5-rotary disk, 6-motor.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

Referring to accompanying drawings 1 and 2 of the specification, accompanying drawing 1 is a flow chart of the steps of the method for cleaning the inner wall of the annular passage provided by the embodiment of the present application, and Fig. 2 is a schematic structural diagram of the weldment provided by the embodiment of the present application, including A method for cleaning the inner wall of an annular passage in an annular cavity of a welded part, wherein the welded part includes: a workpiece body 1, a rotating device, several cleaning balls 2 and a high-pressure water gun; the surface of the workpiece body 1 is provided with a gap, and an annular cavity 3 is provided inside, Openings at both ends of the annular cavity 3 are respectively arranged on two sections of the gap; the cleaning ball 2 is arranged in the annular cavity 3, the rotating device is used to drive the workpiece body 1 to rotate, and the high-pressure water gun is used to spray water. Cleanup methods include:

Step S1: After the workpiece body 1 is fixed on the rotating device, adjust the port orientation of the annular cavity 3 to avoid the leakage of the cleaning ball 2;

Step S2: Check the status of the cleaning balls 2 to prevent the cleaning balls 2 from being stuck with each other;

Step S3: When all the cleaning balls 2 are in a free state, the rotating device will drive the workpiece body 1 to rotate back and forth, so that the cleaning balls 2 rub against the annular cavity 3;

Step S4: After the workpiece body 1 stops rotating, the high-pressure water gun flushes water toward the interior of the annular cavity 3 to clean the slag inside the annular cavity 3 .

Because the cleaning balls 2 have certain rigidity and weight, some cleaning balls 2 will sink to the bottom due to gravity in the annular cavity 3 in a static state. And when it is confirmed that the accumulation of cleaning balls 2 will not be stuck to each other, the workpiece body 1 can be reciprocally rotated by the rotating device, so that the internal cleaning balls 2 vibrate, collide, and rub against the inner wall of the annular cavity 3, thereby removing the internal Hard-to-reach weld slag.

Finally, spray high-pressure water into the annular cavity 3 through a high-pressure water gun, and the high-pressure water will drive the cleaning ball 2 to move to a certain extent, thereby flushing the welding slag out from the other port of the annular cavity 3 . It should be noted that the high-pressure water flow will cause the cleaning ball 2 to vibrate and break away from the contact with the inner wall of the annular cavity 3, but under normal circumstances, due to the high quality of the cleaning ball 2, only the welding slag will be washed out, so the high-pressure water flow can also play a role. The role of auxiliary slag removal is to bring out the secondary impact of welding slag that has not been frictionally removed from the inner wall. After confirming that the slag removal is completed, the cleaning ball 2 can be poured out.

The method of the present application is convenient for slag removal and easy to operate, and the cost and applicability of slag removal are superior to conventional slag removal methods, and solves the problem of slag removal for positions that are difficult to reach inside the weldment.

Further, for the above step S2, check the state of the cleaning ball 2 to avoid the mutual jamming of the cleaning balls 2, which can be specifically: use the rotating device to repeatedly tilt the workpiece body 1, and at the same time use the internal observation mirror to extend into the annular cavity 3, Observe the state between the cleaning balls 2 until all the cleaning balls 2 are separated to avoid mutual jamming between the inner wall and the cleaning balls 2.

The above-mentioned method of observing the state of the cleaning ball 2 is not limited to the above-mentioned insertion of the internal observation mirror, and other existing technologies are also applicable, and are not limited here.

Further, for the above step S3, when all the cleaning balls 2 are in a free state, the rotating device will drive the workpiece body 1 to rotate back and forth, so that the step of cleaning the balls 2 to rub the annular cavity 3 can be specifically: control the workpiece body The rotation strength of 1 satisfies that the cleaning ball 2 can move in the entire annular cavity 3 without falling out of the annular cavity 3. It should be noted that the reciprocating rotation of the workpiece body 1 should ensure that the friction range of the cleaning ball 2 involves all difficult-to-clean sections of the annular cavity 3, and at the same time, it is necessary to avoid excessive kinetic energy and the cleaning ball 2 flies out of the annular cavity 3; this technology It can be realized by controlling the rotation speed and the rotation mode of the rotating device.

The present application also provides a weldment, which can be applied to the above-mentioned method for cleaning the inner wall of the annular channel, including: a workpiece body 1, a rotating device, several cleaning balls 2 and a high-pressure water gun;

There is a gap on the surface of the above-mentioned workpiece body 1, and an annular cavity 3 is opened inside, and the openings at both ends of the annular cavity 3 are respectively arranged on the two sections of the gap; the cleaning ball 2 is arranged in the annular cavity 3, and the rotating device is used To drive the workpiece body 1 to rotate, the high-pressure water gun is used to spray water toward the interior of the annular cavity 3 . In one embodiment of the present application, the workpiece body 1 is formed by butt welding of the upper and lower parts of the body, and half of the annular channel is reserved for the upper and lower parts of the body, until the annular cavity 2 is formed after welding, and two ports are formed.

The opening of the gap of the above-mentioned workpiece body 1 does not need to be too limited in actual use. It is only necessary to reserve the openings at both ends of the annular cavity 3, which can be changed according to actual needs; at the same time, the number of cleaning balls 2 put in can also be adjusted according to the same reason. Actual requirements change. The use of the high-pressure water gun can flush the inside of the annular cavity 3 after the rotation is stopped, or it can be flushed while the workpiece body 1 is rotating. One of the ports ensures that the flushing work will not be affected by the rotation of the workpiece body 1 .

Further, the diameter of the above-mentioned cleaning ball 2 is smaller than the radius of the annular cavity 3, and the inner diameter of the annular cavity 3 may not be exactly the same, but according to actual use requirements, it is proposed that the diameter of the cleaning ball 2 is smaller than the minimum radius in the annular cavity 3, The mobility of the cleaning balls 2 in the annular cavity 3 is ensured, and at the same time, the risk of the cleaning balls 2 being stuck in the annular cavity 3 is reduced. At the same time, a sufficiently small cleaning ball 2 can rub the inner wall of the annular cavity 3 more carefully, and it is only necessary to ensure that the quality of the cleaning ball 2 is sufficient to realize the slag removal work.

Further, the above-mentioned cleaning ball 2 is set as iron sand, which is low in cost, meets the quality requirements and will not cause adverse chemical reactions inside the weldment during the slag removal process. Of course, other solids that meet the above requirements can be used as the cleaning ball 2, which will not be discussed in this article.

Further, referring to accompanying drawing 3 of the specification, Fig. 3 is a structural schematic diagram of the rotating device provided by the embodiment of the present application, the above rotating device includes: a rotating shaft and a clamping piece 4 installed on the rotating shaft; the clamping piece 4 is used for The workpiece body 1 is fixedly clamped. In one embodiment of the present application, the rotating shaft is used to drive the rotating disk 5 to rotate, and the rotating disk 5 drives the clamping member 4 to rotate; the motor 6 drives the rotating disk 5 to rotate.

The clamping and fixing method of the above-mentioned clamping member 4 and the workpiece body 1 can be changed according to actual needs, and the rotation axis can be electronically controlled to ensure the accuracy of its rotation angle and speed.

It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such relationship between these entities. Actual relationship or sequence.

The method for cleaning the welded part and the inner wall of the annular passage provided by the present application has been introduced in detail above. In this paper, specific examples are used to illustrate the principles and implementation methods of the present application, and the descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application. It should be pointed out that those skilled in the art can make some improvements and modifications to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims (7)

1. A cleaning method for the inner wall of an annular channel is applied to an annular cavity of a welding part, and the welding part comprises the following steps: the cleaning device comprises a workpiece body, a rotating device, a plurality of cleaning balls and a high-pressure water gun; the surface of the workpiece body is provided with a notch, the inside of the workpiece body is provided with the annular cavity, and openings at two ends of the annular cavity are respectively arranged on two sections of the notch; the cleaning ball is arranged in the annular cavity, the rotating device is used for driving the workpiece body to rotate, and the high-pressure water gun is used for spraying water towards the inside of the annular cavity, and the cleaning method is characterized by comprising the following steps of:

after the workpiece body is fixed on the rotating device, the direction of a port of the annular cavity is adjusted to prevent the cleaning ball from leaking out;

checking the state of the cleaning balls to avoid the mutual jamming of the cleaning balls;

when all the cleaning balls are in a free moving state, the rotating device drives the workpiece body to rotate in a reciprocating manner, so that the cleaning balls rub the annular cavity;

and when the workpiece body stops rotating, the high-pressure water gun flushes water towards the inside of the annular cavity so as to clean slag in the annular cavity.

2. The method as claimed in claim 1, wherein the checking of the state of the cleaning balls to avoid the cleaning balls from being stuck to each other comprises: and repeatedly inclining the workpiece body until the cleaning balls are separated.

3. The method for cleaning the inner wall of the annular channel as claimed in claim 2, wherein when all the cleaning balls are in a free state, the step of rotating the workpiece body by the rotating device to rotate back and forth so that the cleaning balls rub against the annular cavity comprises the following steps: and controlling the rotation strength of the workpiece body to ensure that the cleaning ball can move in the whole annular cavity without departing from the annular cavity.

4. A weldment adapted for use in the method of cleaning the inner wall of an annular channel according to any of claims 1 to 3, comprising: the cleaning device comprises a workpiece body, a rotating device, a plurality of cleaning balls and a high-pressure water gun;

the surface of the workpiece body is provided with a notch, the inside of the workpiece body is provided with the annular cavity, and openings at two ends of the annular cavity are respectively arranged on two sections of the notch; the cleaning ball is arranged in the annular cavity, the rotating device is used for driving the workpiece body to rotate, and the high-pressure water gun is used for spraying water towards the inside of the annular cavity.

5. The weldment of claim 4, wherein the cleaning balls have a diameter that is less than the radius of the annular cavity.

6. The weldment of claim 4, wherein the cleaning balls are provided as iron sand.

7. The weldment of claim 4, wherein the rotation means comprises: a rotating shaft and a clamping piece mounted on the rotating shaft; the clamping piece is used for fixedly clamping the workpiece body, and the rotating shaft is used for driving the rotating shaft to rotate.

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