WO2014109428A1

WO2014109428A1 - Deburring tool for chamfering cladding tube and heat transfer tube

Info

Publication number: WO2014109428A1
Application number: PCT/KR2013/001081
Authority: WO
Inventors: 박종석; 김선두; 강종렬; 이영희; 안창모; 김명식; 성학진
Original assignee: 한전원자력연료 주식회사
Priority date: 2013-01-08
Filing date: 2013-02-12
Publication date: 2014-07-17
Also published as: KR101447002B1; KR20140090360A

Abstract

The present invention relates to a deburring tool for chamfering outer, inner, and front surfaces of a tube, comprising: a body part coupled to a rotary shaft so as to be rotated; a first cutting part formed to protrude from one end of the body part and having a first cutting tip which is slantingly provided and can be separated from or coupled to a protruding upper portion thereof; a second cutting part formed to protrude inwards from one end of the body part and having a second cutting tip which is slantingly provided and can be separated from or coupled to a protruding upper portion thereof; and a third cutting part formed to protrude from one end of the body part, integrally connected to the first and second cutting parts, and has a third cutting tip which is provided in the longitudinal direction and can be separated from or coupled to a protruding upper portion thereof. As for the effects of the invention, the deburring tool for removing burrs generated on the outer, inner, and front surfaces of the tube is improved so as to enable the body and the cutting tip to be provided as an integrated tool which can be separated from or coupled to each other, thereby quickly replacing the tips when the tips are worn out or broken during a cutting process, reducing replacement costs and time, and thus improving work efficiency.

Description

Deburring Tool for Chamfering Pipe and Heat Transfer Pipe

The present invention relates to a deburring tool for chamfering the outer surface, the inner surface, and the front surface of a nuclear fuel cladding tube and a heat transfer tube. It is about the invention of a deburring tool for.

The present invention reduces the tool manufacturing cost by improving the body and the cutting tip (Tip) can be separated and combined with each other and reduce the replacement cost and time in the case of wear and break of the tip (Tip) of the tube to improve the work efficiency It relates to a deburring tool for cutting the outer surface, the inner surface, and the entire surface.

In light-water reactors, fuel assemblies use materials containing zirconium alloys with low neutron absorption properties, and tubular products, such as, for example, sheath tubes or inconel heat pipes of zirconium alloys, are generally made of rods obtained from ingots by forming and mechanical processing. Prepared by extrusion.

Meanwhile, in order to manufacture a tubular product into a tube of a predetermined size, the diameter of the flexible tube is axially stretched and reduced by the peeler device, and in this peeler process, the tube end splits in the process of conveying the tube by the automatic feeding device ( In the event of a split, the burr at the end of the tube needs to be thoroughly managed, since the equipment will stop in an emergency.

Generally, a deburring tool is used to remove burrs generated during this kind of tube manufacturing process.

In the examples of the prior art literature Republic of Korea Patent Publication No. 10-2011-0070983 "nuclear fuel rod cladding tube and method and apparatus for producing the cladding," Korean Utility Model Utility Model Publication No. 20-0308445, "Bite for Removing Weld Beads of Pipe," and the like.

The deburring tool for cutting the outer surface, the inner surface and the front surface of the conventional tube is coupled to the mounting groove 11 formed in the center of the body portion 10, as shown in FIG.

An inclined outer surface cutting portion 20 protrudes from the upper portion of the body portion 10.

The outer cut portion 20 removes burrs generated on the outer surface by the inclined surface of the outer cut portion 20 while the tube is in close contact.

In addition, the body portion 10 is formed such that the upper surface inclined cut portion 30 is protruded in the center of one end, such as the outer cut portion 20.

The inner surface cutting portion 30 is inserted into the inner surface of the close tube to remove the burr generated on the inner surface.

In addition, the body portion 10 is formed with a front cutting portion 40 having a slight depth between the outer surface cutting portion 20 and the inner surface cutting portion 30.

The front cut portion 40 removes burrs generated on the front surface of the tube in close contact with the deburring tool together with the outer cut portion 20 and the inner cut portion 30.

However, since such a deburring tool deburrs both ends of the work-hardened tube due to cold rolling after peeling, wear of the deburring tool is severe, especially as the cutting tip is integral with the body. If any one of the outer, inner and front cutting surfaces is worn or damaged during deburring, there is a problem that the entire deburring tool must be replaced.

In addition, there is a problem that the work efficiency is reduced due to the cost and time required when replacing the entire deburring tool.

Accordingly, an object of the present invention relates to a deburring tool for removing burrs generated on an outer surface, an inner surface, and a front surface when manufacturing a tube, and a tool having a body and a cutting tip integrated with each other. Improved with detachable tools that can be separated and combined, so that the outer, inner and front surfaces of the tube can be quickly replaced in the event of abrasion and breakage of the tip during the cutting process, thereby reducing the replacement cost and time. It is to provide a deburring tool for improving the efficiency.

The object is, in accordance with the present invention, the body portion is coupled to the rotating shaft to drive; A first cutting part protruding from one end of the body part, and having a first cutting tip (Tip) mounted on the protruding upper part in an inclined manner; A second cutting portion protruding from one end of the body portion to an inner surface, and having a second cutting tip (Tip) inclinedly mounted on the protruding upper portion and capable of being separated and coupled; And a third cutting tip protrudingly formed at one end of the body part and integrally connected to the first cutting part and the second cutting part, the third cutting tip being detachable and coupled to the protruding upper part in the longitudinal direction. 3 cutting part; It is achieved by a deburring tool (Deburring Tool) for cutting the outer surface, inner surface, the front surface of the tube comprising a.

Here, the second cutting tip (Tip) is preferably formed closer to the rotating shaft coupled to the body than the first cutting tip (Tip).

Preferably, the third cutting portion has a lower height than the other two cutting portions.

Preferably, the plurality of cutting parts are provided with separation grooves for easily separating the cutting tips.

And, the plurality of cutting tips (Tip) is preferably made the same shape and size can be replaced with each other.

According to the present invention, a deburring tool for removing burrs generated on the outer surface, the inner surface, and the front surface of a tube is provided. If the tip wears and breaks during the cutting process, it can be quickly replaced, thereby improving work efficiency, which reduces the replacement cost and time.

1 is a perspective view showing a deburring tool according to the prior art,

Figure 2 is a perspective view showing a deburring tool (Deburring Tool) for cutting the outer surface, inner surface, the front surface of the tube according to the present invention,

3 is a perspective view showing a state in which a cutting tip of the deburring tool according to the present invention is separated;

4 to 6 is a view showing a cutting tip (Tip) of the deburring tool according to the present invention in close contact with the outer surface, the inner surface, the front surface of the tube.

[Description of the code]

100: body 200: first cutting portion

210: first cutting tip 300: second cutting portion

310: second cutting tip 400: third cutting part

410: third cutting tip 500: coupling groove

510: separation groove T: tube

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

Deburring tool according to the present invention, as shown in Figures 2 to 3, the body portion 100, the first cutting portion 200, the second cutting portion 300 and the third cutting portion ( 400).

Body portion 100 is formed in a circular shape is coupled to the rotary shaft is driven to rotate.

Looking specifically, the body portion 100 is inserted into the rotating shaft (not shown) formed long in the longitudinal direction in the center is coupled.

The first cutting part 200 is protruded to one end of the body portion 100, the first cutting tip 210 that can be separated, coupled to the protruding upper portion is inclined.

Specifically, the first cutting part 200 is formed to protrude perpendicularly to one end of the body portion 100 and is formed to be inclined at one end of the upper portion.

An engaging groove 500 having the same size and shape as the first cutting tip 210 is formed in the upper inclined first cutting part 200 so that the first cutting tip 210 may be mounted.

The coupling grooves 500 and the separation grooves 510 are formed in the

cutting parts

200, 300, and 400 of the three surfaces to be described below in order to easily separate the

cutting tips

210, 310, and 410.

Separation groove 510 is a circular shape having a small diameter, the coupling groove 500 is a triangular shape is formed so that the corner portion is open.

The separation groove 510 has the edges of the combined

cutting tips

210, 310, and 410 open to both sides, thereby easily separating the

cutting parts

200, 300, and 400 from the

cutting tips

210, 310, and 410. Do.

The first cutting tip 210 has a polygonal shape and removes burrs by using one surface.

The material of the first cutting tip 210 is high speed tool steel or cemented carbide, etc., and is coupled to the first cutting part 200 using a separate bolt.

The first cutting tip 210 coupled to the first cutting part 200 neatly removes burrs generated on the outer surface of the tube T in close contact with the body part 100.

In the process of cutting, when the first cutting tip 210 is worn or damaged to replace it, the fixed state is released from the first cutting part 200 by rotating a separate fixed bolt.

The released first cutting tip 210 is completely separated from the first cutting part 200 through the separating groove 510 formed in the first cutting part 200.

The first cutting tip 210 to be replaced is inserted into the coupling groove 500 formed in the first cutting portion 200, and then coupled using a separate bolt.

The second cutting part 300 is formed to protrude stepwise to the inner surface of one end of the body portion 100, the second cutting tip 310 that can be separated, coupled to the protruding upper portion is inclined.

In detail, the second cutting part 300 protrudes at one end of the body part 100 and is inclinedly mounted between the lower part and the upper part which are formed flat to the inner surface.

The second cutting unit 300 is mounted to the second cutting tip 310 that can be separated, coupled to the top mounted inclined.

The second cutting tip 310 is formed in a polygonal shape to remove the burr generated on the inner surface of the tube (T) using one surface neatly.

The second cutting part 300 has a position where the second cutting tip 310 is coupled is formed closer to the rotation axis than the first cutting tip 210 coupled to the first cutting part 200.

The burr generated on the outer surface of the tube T in close contact with the body portion 100 is removed by the first cutting tip 210 of the first cutting portion 200, the inner surface of the tube (T) The generated burr is neatly removed by the second cutting tip 310 of the second cutting part 300.

When the replacement of the second cutting tip 310 is inevitable in the process of cutting, the fixed state is released from the second cutting part 300 by rotating the fixed bolt.

The released second cutting tip 310 is completely separated from the second cutting part 300 through the separating groove 510 formed in the second cutting part 300.

The second cutting tip 310 to be replaced is inserted into the coupling groove 500 formed in the second cutting portion 300, it is coupled using a separate bolt.

The third cutting unit 400 is formed to protrude at one end of the body portion 100, is integrally connected to the first cutting unit 200 and the second cutting unit 300, separated, coupled to the upper portion protruding Possible third cutting tips 410 are mounted in the longitudinal direction.

Looking specifically, the third cutting portion 400 is formed to protrude perpendicularly to one end of the body portion 100, the upper portion protruding perpendicularly is changed to become narrower toward the inner surface.

The variable third cutting unit 400 is integrally connected to the first cutting unit 200 and the second cutting unit 300.

The third cutting part 400 is formed to have a lower height than the other two cutting

parts

200 and 300 to be in contact with the front surface of the tube T in close contact with the body part 100.

The third cutting unit 400 is mounted to the third cutting tip 410 that can be separated and coupled to the upper portion formed in the longitudinal direction.

The third cutting tip 410 has the same size and shape as the first cutting tip 210 and the second cutting tip 310 and is coupled to the third cutting part 400.

The third cutting tip 410 neatly removes burrs generated on the front surface of the tube T in close contact with the body portion 100.

As described in the first cutting tip 210 and the second cutting tip 310, the third cutting tip 410 is fixed to the bolt fixed when the third cutting tip 410 is inevitably replaced in the cutting process By rotating, the fixed state is released from the third cutting unit 400.

The released third cutting tip 410 is completely separated from the third cutting part 400 through the separating groove 510 formed in the third cutting part 400.

The third cutting tip 410 to be replaced is inserted into the coupling groove 500 formed in the third cutting portion 400, it is coupled using a separate bolt.

4, the first cutting tip 210 of the first cutting part 200 is in close contact with the outer surface of the tube, and is generated on the outer surface of the tube by the rotational drive of the rotating shaft. Remove the burr.

Specifically, the rotational force is transmitted to the first cutting unit 200 by the rotational drive, and the first cutting tip 210 is rotated around the outer surface of the fixed tube while being generated on the outer surface mounted to the first cutting unit 200. Remove the burner.

If the first cutting tip 210 is worn or broken in the process of being cut and replacement is inevitable, the fixed state is released from the first cutting part 200 by rotating a separate fixed bolt.

The released first cutting tip 210 is separated from the separation groove 510 of the first cutting part 200 and the first cutting tip 210 to be replaced is the coupling groove 500 formed in the first cutting part 200. Once inserted in, they are joined using a separate bolt.

As shown in FIG. 5, the second cutting part 300 has the second cutting tip 310 of the second cutting part 300 closely attached to the inner surface of the tube, and is generated on the inner surface of the tube by the rotational drive of the rotating shaft. Remove the burr.

Specifically, the rotational force is transmitted to the second cutting unit 300 by rotational driving, and the second cutting tip 310 is generated on the inner surface mounted to the second cutting unit 300 while rotating around the inner surface of the fixed tube. Remove the burner.

If the second cutting tip 310 is worn or broken in the process of being cut, and the replacement is inevitable, the fixed state is released from the second cutting part 300 by rotating a separate fixed bolt.

The released second cutting tip 310 is separated from the separation groove 510 of the second cutting part 300 and the second cutting tip 310 to be replaced is the coupling groove 500 formed in the second cutting part 300. Once inserted in, they are joined using a separate bolt.

As shown in FIG. 6, the third cutting part 400 has the third cutting tip 410 of the third cutting part 400 closely attached to the front surface of the tube, and is generated on the front surface of the tube by rotational driving of the rotating shaft. Remove the burr.

Specifically, the rotational force is transmitted to the third cutting unit 400 by the rotational drive, and the third cutting tip 410 is generated on the front surface mounted on the third cutting unit 400 while rotating around the front surface of the fixed tube. Remove the burner.

If the third cutting tip 410 is worn or broken in the process of being cut and replacement is inevitable, the fixed state is released from the third cutting part 400 by rotating a separate fixed bolt.

The released third cutting tip 410 is separated from the separation groove 510 of the third cutting part 400 and the third cutting tip 410 is replaced with the coupling groove 500 formed in the third cutting part 400. Once inserted in, they are joined using a separate bolt.

The third cutting tip 410 has the same shape and size as the first cutting tip 210 and the second cutting tip 310 and can be replaced with each other.

Since the cutting

tips

210, 310, and 410 may have different degrees of wear and breakage, the cutting

tips

210, 310, and 410 may be replaced with each other according to the degree of wear and breakage in terms of recycling, thereby reducing costs.

The following is a description of the use and operation of the deburring tool for cutting the outer, inner and front surfaces of the tube.

First, as shown in FIGS. 2 and 3, the body portion 100, which is a component of the deburring tool, includes a first cutting portion 200, a second cutting portion 300, and a protrusion formed at one end thereof. Each of the cutting

tips

210, 310, and 410 is sequentially mounted to the third cutting part 400.

In detail, the first cutting part 200 is inserted into the coupling groove 500, the first cutting tip 210, and is firmly coupled using a separate bolt.

In this manner, the second cutting tip 310 and the third cutting tip 410 are also firmly coupled to the

respective cutting parts

300 and 400.

When replacing the cutting tips (210, 310, 410) is separated from the separation groove 510 formed in each of the cutting portion (200, 300, 400).

The cutting

tips

210, 310, and 410 to be replaced are inserted into the coupling grooves 500 formed in the cutting

parts

200, 300, and 400 by the above-described method, and the cutting

parts

200, 300, and 400 using separate bolts. )

Referring to the operation of the deburring tool (Deburring Tool), as shown in Figure 4, when the tube is in close contact with the body portion 100 is the outer surface is in contact with the first cutting tip 210 of the first cutting portion (200) .

When the first cutting tip 210 rotates, burrs generated around the outer surface of the tube in close contact with the first cutting part 200 are removed.

As shown in FIG. 5, the second cutting tip 310 of the second cutting part 300 is inserted into and contacts the inner surface of the tube.

When the second cutting tip 310 rotates, burrs generated around the inner surface of the tube in close contact with the second cutting part 300 are removed.

As shown in FIG. 6, the third cutting tip 410 of the third cutting part 400 is in contact with the front surface of the tube.

When the third cutting tip 410 is driven to rotate, the burr generated around the front surface of the tube in close contact with the third cutting part 400 is removed.

Claims

A body portion coupled to the rotating shaft and driven to rotate;

A first cutting part protruding from one end of the body part, and having a first cutting tip (Tip) mounted on the protruding upper part in an inclined manner;

A second cutting portion protruding from one end of the body portion to an inner surface, and having a second cutting tip (Tip) inclinedly mounted on the protruding upper portion and capable of being separated and coupled; And

A third cutting part protruding from one end of the body part and integrally connected to the first cutting part and the second cutting part, and having a third cutting tip (Tip) mounted in a lengthwise direction, the third cutting tip being detachable and coupled to the protruding upper part; Cutting part; Deburring tool for chamfering the outer surface, the inner surface, the front surface of the tube comprising a.
The method of claim 1,

Deburring tool for chamfering the outer surface, the inner surface, the front surface of the tube, characterized in that the second cutting tip (Tip) is formed closer to the rotating shaft coupled to the body than the first cutting tip (Tip).
The method of claim 1,

Deburring tool for chamfering the outer surface, inner surface, the front surface of the tube, characterized in that the third cutting portion is formed lower than the other two cutting portion.
The method of claim 1,

Deburring tool for chamfering the outer surface, the inner surface, the front surface of the tube, characterized in that the plurality of cutting portion is added to the separation groove for easily separating the cutting tip (Tip) to be coupled.
The method of claim 1,

Deburring tool for chamfering the outer surface, the inner surface, the front surface of the tube, characterized in that the plurality of cutting tips (Tip) is made the same shape and size can be replaced with each other.