KR20160139178A - Welding structure of vacuum valve and method and apparatus thereof - Google Patents

Welding structure of vacuum valve and method and apparatus thereof Download PDF

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Publication number
KR20160139178A
KR20160139178A KR1020150073589A KR20150073589A KR20160139178A KR 20160139178 A KR20160139178 A KR 20160139178A KR 1020150073589 A KR1020150073589 A KR 1020150073589A KR 20150073589 A KR20150073589 A KR 20150073589A KR 20160139178 A KR20160139178 A KR 20160139178A
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KR
South Korea
Prior art keywords
plate
welded
welding
platform
welding gun
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KR1020150073589A
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Korean (ko)
Inventor
수이 포 리
Original Assignee
킹 라이 하이제닉 머티리얼즈 캄파니 리미티드
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Priority to KR1020150073589A priority Critical patent/KR20160139178A/en
Publication of KR20160139178A publication Critical patent/KR20160139178A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/10—Welded housings
    • F16K27/105—Welded housings for gate valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Resistance Welding (AREA)

Abstract

A structure for welding a vacuum valve comprises a first plate, a second plate, and a cover plate. The second plate has two lateral edges, which come in contact with two lateral edges of the first edge to be fixed through an internal welding work, to form internal weld beads in the inner edges of the first and second plates, respectively. The cover plate is welded to one end of the first plate and one end of the second plate. The valve body of a vacuum valve is welded enough through an internal welding work to prevent damage to the valve body, thereby realizing actual vacuum environment.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding structure of a vacuum valve,

Field of the Invention The present invention relates to a welding structure of a vacuum valve and its method and apparatus, and more particularly, to an internal welding method for sufficiently internally welding an object without using solder for manufacturing a valve body of a vacuum valve .

Most vacuum valves today are hollow, flat, long, and their internal welding is not easy to carry out. Thus, internal welding has been replaced by external welding to facilitate welding convenience. Normally, the valve body is welded by external penetration welding, and the solder penetrates the gap of the valve body during the welding process, thereby achieving the actual vacuum environment of the valve body by completely filling the gap to seal the valve body.

However, the technical ability of each welding operation during the external welding process becomes a problem. In particular, in through-welding, the two connecting portions of the valve body are liquefied and subsequently filled with solder. During such a process, the connecting portion of the valve body may be somewhat deformed, damaging the structure of the valve body, and creating a small gap. Once a small gap is created, the valve body does not have an actual vacuum and the service life of the product is shortened.

In order to solve the above-mentioned problems, the present invention provides a welding structure for a vacuum valve and a method and an apparatus for preventing the valve structure from being damaged such that an actual vacuum state of the valve body is realized by an internal welding process.

In order to achieve the above object,

A second plate having two lateral edges that are in contact and secured by internal welding to two lateral edges of the first plate so that the inner weld beads are formed on the inner edges of the first plate and the second plate, A second plate having a second plate; And

And a cover plate welded to one end of the first plate and one end of the second plate.

In addition, in order to achieve the above object, there is provided a method for manufacturing a hollow object, comprising the steps of: a) providing a first plate and a second plate, welding the cover plate on one end of the first plate and one end of the second plate ;

b) disposing an object to be welded on a movable sheet reciprocating relative to the welding gun; And

c) welding guns are inserted into the object to be welded to weld the first and second plates along the two contact edges of the first and second plates to form inner weld beads on the two sides in the object to be welded respectively And moving the movable sheet toward the welding gun so that an object to be welded is welded to the valve body of the vacuum valve.

In order to achieve the above object, the present invention also provides a mobile terminal comprising: a platform;

An electric welding unit provided with a welding gun and disposed on a platform;

A movable sheet slidably disposed on the platform so that an object to be welded is disposed on the movable platform; And

There is provided a welding apparatus including a drive unit for driving a movable sheet to reciprocate with respect to a welding gun so that the welding gun can be inserted into an object to be welded for internal welding.

Therefore, according to the present invention, it is possible to weld the hollow object to be welded while being internally welded to realize the actual vacuum environment of the valve body of the vacuum valve. Also, since the welding process of the present invention does not use solder and the depth of the inner weld bead is smaller than the depth of the contact edge of the object to be welded, the valve body is prevented from being deformed to impair the structural strength, The actual vacuum environment of the body can be achieved.

Furthermore, in order to improve the structural strength and service life of the valve body of the vacuum valve, a plurality of welded structures with a gap therebetween is applied to the outer edge of each of the two contact edges to form a plurality of outer weld beads And the length of each outer weld bead is shorter than the length of the inner weld bead.

1 is a perspective view of a welding apparatus according to the present invention.
2 is a plan view of a welding apparatus according to the present invention.
3 is a perspective view of a welding apparatus according to the present invention in which an object to be welded is disposed on a movable sheet.
4 is an exploded perspective view of an object to be welded.
5 is a perspective view of an object to be welded.
6 is a schematic view showing a welding gun according to the present invention inserted into an object to be welded.
7 is a schematic view showing an inner welding process in which an inner welding bead is formed between a first plate and a second plate;
8 is a schematic view showing a structure of an inner welding bead and an outer welding bead of a valve body according to the present invention.

The above-described and further advantages and features of the present invention will be better understood by reference to the description of a preferred embodiment with reference to the accompanying drawings, in which parts are shown by way of illustration and not by way of limitation on the actual part dimensions.

Referring to Figs. 1 to 8, a welding apparatus provided by the present invention includes a platform 10, an electric welding unit 20, a movable seat 30, and a drive unit 40.

The platform 10 has a pole 11 disposed at one corner thereof in a rectangular shape. The fixed seat 12 is mounted on the pawl 11 and the fixed seat 12 can be mounted by the screw assemblies such that the position of the fixed seat 12 is axially adjustable along the pawl 11. [

The electric welding unit 20 is provided with a welding gun 21 and a rod 22. One end of the rod 22 is fixedly coupled to the fixed seat 12 so that the welding gun 21 is vertically supported on the pawl 11 on the platform 10 and the welding gun 21 . By adjusting the fixing sheet 12, the height of the welding gun 21 is adjusted and adjusted to facilitate the welding process at different heights.

The rails 13 are disposed on the surface of the platform 10 and are disposed parallel to the welding gun 21 below the welding gun 21.

The movable seat (30) is slidably disposed on the rail (13). Preferably, the movable seat 30 includes a first sliding block 31 and a second sliding block 32, wherein the first sliding block 31 and the second sliding block 32 are spaced apart from each other And is slidably disposed on the rail 13. [

The movable seat 30 is further provided with two arrangement blocks 33 and 34 which are threadedly fixed on top of the first sliding block 31 and the second sliding block 32 respectively, And the engaging plate 35 is fixed between the blocks 33 and 34. In addition, the two batch blocks 33, 34 are U-shaped to accommodate the hollow object 200 to be welded.

4 and 5, the object 200 to be welded is a hollow, U-shaped first plate 201, a second plate 202, and a first plate 201 and a second plate 202 And the first plate 201 and the second plate 202 form an integral structure and a hollow flat shape is formed in order to facilitate the subsequent welding process Respectively. The object 200 to be welded is then placed over the movable sheet 30. [

The placement block 33 on one end of the movable sheet 30 farther from the welding gun 21 is positioned so that the front edge of the object 200 to be welded when the object to be welded 200 is placed on the movable sheet 30 A nut 36 and a position limiting screw 37 screwed to the nut 36 are provided so as to prevent the object 200 to be welded during the welding process from moving in a direction away from the welding gun 21 It has a forward edge.

The drive unit 40 drives the movable sheet 30 to reciprocate with respect to the welding gun 21 so that the welding gun 21 can be inserted into the object 200 to be welded to be welded therein. The drive unit 40 includes a motor 41, a screw rod 42, and a coupling member 43. The motor 41 is mounted on the platform 10 and is positioned on one side of the electric welding unit 20. The threaded rod 42 is engaged with the motor 41 and rotates together with the motor 42. The threaded rod 42 is positioned parallel to the rail 13 on the side of the rail 13 and the engagement member 43 is connected to the movable seat 30 and screwed around the threaded rod 42.

Preferably, the engagement member 43 is engaged with the placement block 34, which is closer to the weld gun 21 than the placement block 33. When the motor 41 is driven to rotate the screwing rod 42, the engaging member 43 operates the movable sheet 30 to reciprocate on the rail 13 so as to move away from or close to the welding gun 21 Thereby performing a welding operation.

In particular, since the moving speed of the movable sheet 30 of the present invention is relatively low at 15-22 mm / min, the movable sheet 30 is not provided with a special clamping structure. The size of the placement blocks 33, 34 will correspond to the size of the object 200 to be welded. In the case of another object 200 to be welded with different sizes, the first and second sliding blocks 31, 32 are arranged such that the arrangement blocks 33, 34 of different sizes support different objects 200 to be welded, The placement blocks 33 and 34 are screwed into the first and second sliding blocks 31 and 32 so as to be selectively accommodated on the first and second sliding blocks 31 and 32, respectively.

In addition, the distance between the first sliding block 31 and the second sliding block 32 is determined by the length of the object 200 to be welded. When the length of the object 200 to be welded is relatively long, an engaging plate 35 having a longer length is applied to extend the distance between the first and second sliding blocks 31 and 32, The object 200 to be moved is stably placed on the movable sheet 30. [

Figures 6 and 7 are schematic drawings showing the welding operation performed in accordance with the present invention. The height of the welding gun 21 is adjusted in advance so that the movable sheet 30 can carry the object 200 to be welded toward the welding gun 21 so that the welding gun 21 can move the object 200 to weld each of the two contact edges internally by a self-melting welding method. 8, the inner weld bead 204 is formed on two sides in the object 200 to be welded, so that the object 200 to be welded is welded to the valve body 300 of the vacuum valve Welded.

Since no solder is applied to the welding process provided by the present invention, an actual vacuum environment is achieved in the valve body; The depth of the inner weld bead 204 is also smaller than the depth of the contact edge of the object 200 to be welded, so that the valve body 300 can be deformed to prevent deterioration of the structural strength. Moreover, since the depth of the inner weld bead 204 is relatively small, gaps do not arise thereon, and dust accumulation in the gaps is prevented.

Furthermore, as shown in Fig. 8, a plurality of welded structures with spacing are allowed to be fixed at the outer edges of each of the two contact edges of the valve body 300, so that a plurality of outer weld beads 301 The length of the outer weld bead 301 is smaller than the length of the inner weld bead 204 and the overall structure strength is improved by the outer weld bead 301 and the service life of the product is extended.

More specifically, the outer weld bead 301 is formed of a plurality of welded structures having spacing therebetween. When the valve body 300 is tested using a nitrogen detector, nitrogen easily flows into the internal space of the valve body 300, thus facilitating the detection of gas leakage for additional welding patch repair. If the outer weld bead 301 is formed in a fully welded manner, the contact edges are usually filled by weld beads on both sides, so that the gas leakage is not easily detectable by use of a nitrogen detector.

A method of welding a valve body (300) according to the present invention includes the following steps:

a) providing a first plate 201 and a second plate 202 all in the form of a U and having one end of the first plate 201 and the other end of the second plate 202 Welding the cover plate 203 on one end of the cover plate 203;

b) disposing an object to be welded on the movable seat (30) on the platform (10); And

c) attaching the movable sheet 30 to the welding gun 21 such that the welding gun 21 is inserted into the object 200 to be welded to weld the first plate 201 and the second plate 202 along the two contact edges, Wherein the object to be welded is welded to the valve body of the vacuum valve, comprising: forming an inner weld bead on each of the two sides of the object to be welded;

By this welding method, the valve body 300 is completely welded internally, whereby the structure is prevented from being damaged, and the structural strength and service life of the valve body 300 are improved. The welded structures at the outer edges of the first plate 201 and the second plate 202 are also formed of a plurality of outer weld beads 301 and are spaced apart between the two adjacent outer weld beads 301 .

The welding structure of the valve body 300 provided by the present invention is achieved using the apparatus and method, wherein the first plate 201 and the second plate 202 are correspondingly fixed by internal welding, An inner weld bead 204 is formed on the inner side of each of the two contact edges and the cover plate 203 is welded on one end of the first plate 201 and one end of the second plate 202.

In addition, the welded structure at the outer edge of each of the two contact ends of the first and second plates 201, 202 is formed of a plurality of outer weld beads 301, whereby the structural strength of the valve body 300 .

According to the welding method provided by the present invention, the welding gun 21 is fixed and the object 200 to be welded is moved toward the welding gun 21 so as to be internally welded without solder, so that the narrow hollow valve body 300 ), Thereby achieving an actual vacuum environment within the valve body 300. [0033] Further, through the internal welding process, the valve body 300 is deformed to prevent deterioration of the structural strength. In addition, the outer edge of the valve body 300 is externally welded with a plurality of gaps between the outer weld beads 301, thereby improving the overall structural strength and improving the service life of the product.

Although specific embodiments of the invention have been described in detail for purposes of illustration, various modifications and improvements can be made without departing from the spirit and scope of the invention. Accordingly, the invention is not limited except as by the appended claims.

Claims (16)

As welding structure of vacuum valve:
First Edition;
A second plate having two side edges welded by internal welding to the two lateral edges of the first plate so that the inner weld beads are respectively formed at the inner edges of the first and second plates, A second plate having directional edges; And
And a cover plate welded to one end of the first plate and one end of the second plate. The method according to claim 1,
Wherein the first plate and the second plate are both U-shaped. The method according to claim 1,
Wherein the outer edge of the first plate and the outer edge of the second plate that are in contact with each other are welded to form a plurality of outer weld beads and the two outer weld beads are spaced apart. As a vacuum valve welding method,
a) providing a first plate and a second plate, welding the cover plate on one end of the first plate and one end of the second plate to form a hollow object to be welded;
b) disposing an object to be welded on a movable sheet reciprocating relative to the welding gun; And
c) inserting the welding gun into an object to be welded to weld the first plate and the second plate along two contact edges of the first plate and the second plate, And moving the movable sheet toward the welding gun so that an object to be welded is welded to the valve body of the vacuum valve. 5. The method of claim 4,
and c) after the internal welding of the step, a plurality of outer weld beads spaced between the two outer weld beads are formed at the outer edge of the first plate contacting the second plate. 6. The method of claim 5,
Wherein the length of each outer weld bead is smaller than the length of each inner weld bead. 6. The method of claim 5,
Wherein the first plate and the second plate are both U-shaped. platform;
An electric welding unit provided with a welding gun and disposed on the platform;
A movable seat slidably disposed on the platform so that an object to be welded is disposed on the movable platform; And
And a driving unit for driving the movable sheet to reciprocate with respect to the welding gun so that the welding gun can be inserted into an object to be welded for internal welding. 9. The method of claim 8,
Wherein the platform is provided with a pawl having a fixed seat and the welding gun is fixedly coupled to one end of the rod while a rod is formed on the fixed seat. 10. The method of claim 9,
Wherein the height of the fixed sheet is axially adjustable along the pole. 9. The method of claim 8,
Wherein the platform is provided with a rail on which the movable seat is slidably disposed. 9. The method of claim 8,
Wherein the drive unit includes a motor disposed on the platform, a screw rod coupled to the motor and rotating as the motor, and a coupling member disposed between the movable seat and the screw rod, And drives said engagement member to move axially along said threaded rod to cause reciprocating movement. 12. The method of claim 11,
Wherein the movable seat includes a first sliding block and a second sliding block that are slidably disposed on the rail and two arrangement blocks are respectively disposed in the first sliding block and the second sliding block, A welding apparatus in which a joint block is fixed between placement blocks and both placement blocks are U-shaped to receive an object to be welded. 14. The method of claim 13,
Wherein one of the two arrangement blocks has a front edge with a nut and a position limiting screw threadably engaged with the nut to stop against the front edge of the object to be welded. 14. The method of claim 13,
And two placement blocks are threadedly engaged with the first sliding block and the second sliding block, respectively. 9. The method of claim 8,
Wherein the object to be welded is formed of a U-shaped first plate and a second plate.
KR1020150073589A 2015-05-27 2015-05-27 Welding structure of vacuum valve and method and apparatus thereof KR20160139178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150073589A KR20160139178A (en) 2015-05-27 2015-05-27 Welding structure of vacuum valve and method and apparatus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150073589A KR20160139178A (en) 2015-05-27 2015-05-27 Welding structure of vacuum valve and method and apparatus thereof

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KR20160139178A true KR20160139178A (en) 2016-12-07

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