KR101869818B1 - Apparatus for making a boom having a polygonal cross section - Google Patents

Apparatus for making a boom having a polygonal cross section Download PDF

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Publication number
KR101869818B1
KR101869818B1 KR1020170016936A KR20170016936A KR101869818B1 KR 101869818 B1 KR101869818 B1 KR 101869818B1 KR 1020170016936 A KR1020170016936 A KR 1020170016936A KR 20170016936 A KR20170016936 A KR 20170016936A KR 101869818 B1 KR101869818 B1 KR 101869818B1
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KR
South Korea
Prior art keywords
boom
side plate
lower plate
plate pressing
supporting
Prior art date
Application number
KR1020170016936A
Other languages
Korean (ko)
Inventor
김지훈
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김지훈
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Publication date
Application filed by 김지훈 filed Critical 김지훈
Priority to KR1020170016936A priority Critical patent/KR101869818B1/en
Application granted granted Critical
Publication of KR101869818B1 publication Critical patent/KR101869818B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

The present invention relates to an apparatus for manufacturing a boom having a polygonal cross section. The apparatus includes a base supporting the whole apparatus; a lower plate support provided on the top surface of the base to support a lower plate of the boom; a lateral plate support provided on the top surface of the base in a direction perpendicular to the lower plate support to support one lateral plate of the boom; a lateral plate pushing/fixing unit provided on the top surface of the lower plate support and having a lateral plate pressing member which comes in contact with the other lateral plate and is movable in all directions; and an upper plate pushing/fixing unit provided on the top surface of the lower plate support and having an upper plate pressing member which comes in contact with the upper plate and is movable in all directions. Since the boom is supported by the lower and upper plate supports which are formed in one member, it is possible to decrease a manufacture clearance.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for manufacturing a boom having a polygonal cross-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a boom having a polygonal cross section and, more particularly, to a boom manufacturing apparatus having a lower plate support portion and a side plate support portion integrally formed thereon, The present invention relates to an apparatus for manufacturing a boom having a polygonal cross-section by reducing the tolerance of a boom to be manufactured and having improved productivity by having a fixed portion.

A crane is a general machine that can lift a cargo from the ground and transport it vertically, horizontally, back and forth. It is also called a crane.

Generally, the crane includes an extension boom for enabling the movement of the load. The boom is freely adjustable in length by a driving device such as a motor. The boom is formed in a multi-stage structure so that the length of the boom can be adjusted. Generally, the boom has a cross-sectional shape having a polygonal cross section.

The boom having such a mutually entrained structure has a great influence on the smooth operation of the boom. The types of tolerances include tolerances according to the material of the steel plate before bending, tolerances according to the structure inside the boom manufacturing apparatus, tolerances according to welding deformation or short deformation. Particularly, Of the total.

Specifically, in the boom manufacturing apparatus, the lower plate supporting portion for supporting the lower plate of the boom and the side plate supporting portion for supporting the side plate are formed separately as separate members. This creates inevitable tolerances in supporting the bottom and side plates during the manufacturing process of the boom.

Furthermore, the conventional boom manufacturing apparatus has a configuration in which the lower plate and the side plate of the boom are fixed by fixing the rectangular, screw-shaped support device by rotating the boom.

Therefore, there is a need to improve the productivity of the boom by reducing the tolerance of the boom of the final product through the improvement of the boom manufacturing apparatus.

Korean Patent No. 10-0807311 (Feb.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a boom manufacturing apparatus capable of remarkably reducing the tolerance on the manufacture of boom and improving manufacturing productivity.

In order to achieve the above object, one aspect of the present invention is a boom manufacturing apparatus for manufacturing a boom having a polygonal cross section, the boom comprising: a base portion supporting the entire boom manufacturing apparatus; A lower plate supporting part formed on an upper surface of the base part and supporting the lower plate of the boom; A side plate supporter formed on the upper surface of the base portion to be perpendicular to the lower plate supporter and supporting one side plate of the boom; A side plate pressing and fixing unit that is formed on an upper surface of the lower plate supporting unit and is in contact with the other side plate of the boom with a side plate pressing member formed at one end thereof and the side plate pressing member is movable in a horizontal direction and a vertical direction; And a top plate pressing and fixing unit which is formed on an upper surface of the lower plate supporting unit and is in contact with the upper plate of the boom with an upper plate pressing member formed at one end thereof and the upper plate pressing member is movable in a horizontal direction and a vertical direction do.

In one embodiment, the lower plate supporting portion and the side plate supporting portion are integrally formed as a single member.

In one embodiment, a slide portion is formed on a lower surface of the side plate pressing and fixing portion and on a contact surface between the side plate pressing and fixing portion and the lower plate supporting portion so that the side plate pressing and fixing portion slides horizontally on the upper surface of the lower plate supporting portion. The boom manufacturing apparatus may be a boom manufacturing apparatus.

In one embodiment, the slide portion includes an inverted U-shaped rail portion formed on the side plate pressing and fixing portion side and opened downward, and an inverted T-shaped portion having an upwardly projecting portion is formed on the upper surface of the lower plate supporting portion. And a rail guide portion having a shape of a rail.

In one embodiment, the shroud press fit includes a horizontal vise extending in a horizontal direction, and the vise is movable in a vertical direction.

In one embodiment, the top plate pressing fixture comprises: a vertical vise extending in a vertical direction; A support frame having a vice connecting part formed at one side thereof to surround an outer circumferential surface of the vertical vise; And a guide portion fixed to the side plate support portion and connected to the support frame to guide the horizontal movement of the support frame.

In one embodiment, the support frame is formed to pass through the inner circumferential surface of the guide portion, and operates in a push-pull manner according to the guide of the guide portion.

According to one aspect of the present invention, the boom can be supported by the lower plate support portion integrally formed of a single member and the side plate support portion, and the tolerance on the manufacture of the boom can be remarkably reduced.

According to another aspect of the present invention, the side plate pressing and fixing portion is slidably moved on the upper surface of the lower plate supporting portion, so that the side plate of the boom can be quickly fixed, thereby improving the productivity of the boom.

According to still another aspect of the present invention, since the upper plate pressing and fixing section is operated in the push-pull direction in the horizontal direction, the position of the upper plate pressing and fixing section can be set quickly, and the productivity of the boom is improved.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a longitudinal sectional view of a boom manufacturing apparatus according to an embodiment of the present invention.
2 is a longitudinal sectional view of a boom manufacturing apparatus according to another embodiment of the present invention.
3 is an enlarged longitudinal sectional view of a lower plate supporting portion and a side plate supporting portion of an apparatus for manufacturing boom according to an embodiment of the present invention.
4 is an enlarged lateral cross-sectional view of a slide portion of a boom manufacturing apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "indirectly connected" . Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

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

FIG. 1 is a longitudinal sectional view of a boom manufacturing apparatus 1000 according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a boom manufacturing apparatus 1000 according to another embodiment of the present invention.

1 and 2, a boom manufacturing apparatus 1000 is an apparatus for manufacturing a boom 100 having a polygonal vertical section and including a base portion 200, a lower plate supporting portion 300a, a side plate supporting portion 300b, A side plate pressing and fixing unit 400, and a top plate pressing and fixing unit 500.

The base portion 200 is positioned at the lowermost portion of the boom manufacturing apparatus 1000 to support the entire boom manufacturing apparatus 1000.

The base portion 200 may be formed of a hollow support portion 201 and a flat plate portion 202 positioned above the support portion 201.

The support portion 201 and the flat plate portion 202 may be extended in the longitudinal direction so as to stably support the entire boom 100 to be manufactured.

The lower plate supporting portion 300a can be formed on the upper surface of the base portion 200 and supports the lower plate of the boom 100. [

The side plate support portion 300b may be formed on the upper surface of the base portion 200 and may be formed to be perpendicular to the lower plate support portion 300a and supports one side plate of the boom 100. [

That is, the lower plate and the side plate of the boom 100 can be supported by the lower plate support portion 300a and the side plate support portion 300b in an 'a' shape.

The side plate pressing and fixing part 400 may be formed on the upper surface of the lower plate supporting part 300a and includes a body part 410, a slide part 420 and a horizontal vise 430.

A fixing member 411 and a guide member 412 may be formed on the body 410.

In one embodiment, the fixing member 411 may be a bolt member that is moved in a longitudinal direction through a hole portion (not shown) formed in the body portion 410, and a plurality of the fixing member 411 may be disposed parallel to the first reference line R1 .

The fixing member 411 can fix the position of the horizontal vise 430 to the body portion 410.

In one embodiment, the guide member 412 may have a rectangular groove shape formed along the first reference line R1.

The guide member 412 can be fastened to a part of the horizontal vise 430 and can guide the vertical movement of the horizontal vice 430.

A fastener (not shown) may be formed in the guide member 412 so as to be movable in the vertical direction along the guide member 412 while having a female screw thread formed on the inner circumferential surface thereof to be fastened to a part of the horizontal vise 430 .

A slide part 420 may be formed on the lower part of the body part 410 to allow the side plate pressing and holding part 400 to move in the horizontal direction. The slide portion 420 will be described later.

The horizontal vise 430 may be formed to be perpendicular to the body 410 and includes a side plate pressing member 431, a column portion 432, a handle 433, and a high-speed rotation gripper 434.

The side plate pressing member 431 may be formed at one end of the horizontal vise 430 and contact the other side plate of the boom 100 to press the boom 100 in the horizontal direction.

In the side plate pressing member 431, the surface contacting the boom 100 may be formed of an elastic body.

Thereby, the boom 100 can be stably fixed.

The column portion 432 may be in the form of a bar extending in the opposite direction from the side plate pressing member 431. [

Male threads may be formed on the surface of the pillars 432. Thus, it can be fastened to the fastening portion (not shown) formed on the guide member 412.

In addition, by such a coupling method, pressing by the rotation of the horizontal vise 430 can be performed after the sliding operation of the side plate pressing and fixing unit 400.

The handle 433 may be formed at the other end of the column portion 432 and may be circular so that the worker can rotate easily.

The high-speed rotation gripper 434 may be formed to protrude from the edge of the handle 433 toward the other end of the post 432.

The high-speed rotation gripper 434 includes an axis fixed to the edge of the handle 433 and a rotation column formed to surround the axis and able to rotate around the axis. When the worker grasps and rotates the high-speed rotation gripper 434, the whole of the handle 433 is rotated while the rotation column is rotated around the axis.

Thereby, the operator can rotate the handle 433 at high speed without changing the gripping position.

The upper plate pressing and fixing part 500 may be formed on the upper surface of the lower plate supporting part 300a and includes a support frame 510, a guide part 520 and a vertical vise 530.

The support frame 510 may be formed as a bar extending in a horizontal direction and may be formed in multiple stages in the vertical direction and may have a vise connection portion 530 formed to surround the outer circumferential surface of the column portion 532 of the vertical vise 530, (511) may be formed.

A female screw thread is formed on the inner circumferential surface of the vice connecting portion 511 and can be fastened to the column portion 532.

In addition, the vice connecting portion 511 can be selectively opened so that the entire column portion 532 can be released to the outside.

The guide portion 520 may be fixed to the side plate support portion 300b and may be connected to the support frame 510 to guide the horizontal movement of the support frame 510. [

In one embodiment, the guide portion 520 may be formed with a through hole through which the support frame 510 can pass in the horizontal direction. The support frame 510 can be operated in a push-pull manner while being guided along the inner circumferential surface of the through-hole.

Further, the guide portion 520 further includes a restricting member (not shown) for restricting the horizontal movement of the support frame 510. Thereby, when the vertical vise 530 to be described later reaches the working position, the vertical vise 530 can be fixed so that it is no longer moved in the horizontal direction.

The vertical vise 530 may be formed in parallel with the side plate supporting portion 300b and includes an upper plate pressing member 531, a column portion 532, a handle 533, and a high-

The upper plate pressing member 531 may be formed at one end of the vertical vise 530 and contact the upper plate of the boom 100 to press the boom 100 in the vertical direction.

In the upper plate pressing member 531, the surface contacting the boom 100 may be formed of an elastic body.

Thereby, the boom 100 can be stably fixed.

The column portion 532 may be in the form of a bar extending in the opposite direction from the upper plate pressing member 531. [

A male thread may be formed on the surface of the column portion 532. Thereby, it can be firmly fastened to the female screw thread on the inner surface of the vice connecting portion 511.

Further, by such a coupling method, the pressing by the rotation of the vertical vise 530 can be performed after the push-pull operation of the upper plate pressing and fixing unit 500.

The handle 533 may be formed at the other end of the post 532 and may be circular so that the worker can easily rotate it.

The high-speed rotation gripper 534 may be formed so as to protrude from the edge of the handle 533 toward the other end of the column portion 532. [

The high-speed rotation gripper 534 includes a shaft fixed to an edge of the handle 533 and a rotation column formed to surround the shaft and capable of being rotated about an axis. When the worker grasps and rotates the high-speed rotation gripper 534, the entirety of the handle 533 is rotated while the rotation column is rotated around the axis.

Thereby, the operator can rotate the handle 533 at high speed without changing the gripping position.

3 is an enlarged longitudinal sectional view of the lower plate supporting portion 300a and the side plate supporting portion 300b of the boom manufacturing apparatus 1000 according to the embodiment of the present invention.

The lower plate supporting portion 300a and the side plate supporting portion 300b may be integrally formed as a single member to form the L-shaped supporting portion 300. [ In this case, because there is no connection part tolerance between the lower plate supporting part 300a and the side plate supporting part 300b, the tolerance on the manufacturing of the boom 100 caused thereby is remarkably reduced.

A recessed portion 300c may be formed at the folded portion of the lower plate supporting portion 300a and the side plate supporting portion 300b. The recessed portion 300c may have a rounded longitudinal section. The lower plate supporting portion 300a and the side plate supporting portion 300b, which are formed as a single member, can be bent at an accurate angle by the recessed portion 300c. Furthermore, the manufacturing tolerances of the boom 100 are remarkably reduced.

4 is an enlarged lateral cross-sectional view of a slide portion 420 of a boom manufacturing apparatus 1000 according to an embodiment of the present invention.

The slide unit 420 is mounted on the contact surface between the side plate pressing and fixing unit 400 and the lower plate supporting unit 300a such that the side plate pressing and fixing unit 400 is horizontally As shown in Fig.

The slide portion 420 includes a rail portion 421 and a slide portion fixing member 422.

The rail part 421 is formed on the side plate pressing and fixing part 400 side and an inverted U-shaped concave part 421a opened downwardly may be formed on the rail part 421. [

In one embodiment, the concave portion 421a may be in the shape of an O-letter. In this case, stability of engagement with the rail guide portion 301 to be described later is increased, and the slide portion 420 is prevented from being separated upward from the rail guide portion 301.

Preferably, the rail portion 421 may be formed as a pair as in Fig. In this case, the sliding operation of the side plate pressing and fixing unit 400 can be more stably performed.

The slide part fixing member 422 is a member for fixing the state in which the side plate pressing and fixing part 400 is slid to the working position, and may be a pillar shape.

Preferably, the slide portion fixing member 422 may be in the form of a male screw, and may be operated hydraulically or electronically.

A hole 421b may be formed in the rail 421 so that the slide part fixing member 422 is completely received upward and does not interfere with the movement of the slide part 420. [

A female screw acid may be formed on the inner peripheral surface of the hole 421b.

A rail guide portion 301 may be formed on the upper surface of the lower plate supporting portion 300a.

The rail guide portion 301 may be in the form of an inverted T shape having a protruding portion protruding upward.

In one embodiment, the rail guide portion 301 may be in the shape of an O-letter. In this case, stability of engagement with the slide part 420 is increased, and the slide part 420 is prevented from being separated upward from the rail guide part 301.

The lower plate supporting part 300a may be formed with a hole 302 into which the slide part fixing member 422 can be inserted.

The hole 302 may be formed so as to correspond to the shape of the slide portion fixing member 422 and the inner peripheral surface of the hole 302 may be formed with a male screw acid which can be engaged with the slide portion fixing member 422.

4, a rail guide portion may be formed on the side plate pressing and fixing portion 400 side, and a rail portion may be formed on the upper surface of the lower plate supporting portion 300a.

According to one embodiment of the present invention, the boom making apparatus 1000 can be continuously arranged in the longitudinal direction of the boom 100. [

In this case, the flat plate portion 202 of the base portion 200 is continuously formed, and the L-shaped support portion 300, the side plate pressing and fixing portion 400, and the top plate pressing and fixing portion 500 may be formed at predetermined intervals have.

As a result, the entire lengthwise direction of the boom 100 can be processed effectively and quickly.

Referring again to Figs. 1, 2 and 4, the operational relationship of the boom manufacturing apparatus 1000 according to an embodiment of the present invention will be described.

Fig. 2 shows a state in which the boom 100 is further expanded in the horizontal direction and the vertical direction than the boom in Fig.

The operating relationship of the boom manufacturing apparatus 1000 will be described by taking the process of changing from the state of FIG. 1 to the state of FIG.

First, the side plate pressing and fixing unit 400 should be moved to the side where the handle 433 is located (left side in Figs. 1 and 2).

At this time, the slide portion fixing member 422 is completely returned to the hole 421b, and the entire side plate pressing and fixing unit 400 is moved by the rail portion 421-rail guide portion 301.

Next, the upper plate pressing and fixing unit 500 should be moved upward and leftward (as shown in Figs. 1 and 2).

At this time, the column portion 532 can be completely disengaged from the lower side via connection portion 511, and the upper side via connection portion 511 can be moved upward in a state of being coupled with the column portion 532.

In addition, the lower side connection portion 511 may be moved in a pulling manner toward the right side, and the upper side via connection portion 511 may be moved in a pushing manner toward the left side.

Thereafter, the boom 100 of Fig. 2 is inserted, and the pressing step can be started.

The side plate pressing and fixing part 400 can be moved to the right again and when the side plate pressing member 431 comes into contact with the side plate of the boom 100, the slide part fixing member 422 is operated, The entirety of the fixing portion 400 can be fixed.

Next, the side plate pressing member 431 can be brought into close contact with the side plate of the boom 100 while pressing the side plate by rotating the high-speed rotation gripper 434 and the handle 433.

The push-pull operation can be repeated such that the upper side visceral connection part 511 of the upper plate pressing and fixing part 500 is located at the third reference line R3, and when the third side guide line R3 reaches the third reference line R3, The horizontal movement of the movable member 510 is limited.

Next, the upper plate pressing member 531 can be brought into close contact with the upper plate of the boom 100 while pressing the upper plate through the rotation of the high-speed rotation gripper 534 and the handle 533. [

As described above, the side plate pressing and fixing unit 400 is moved in a sliding manner on the upper surface of the lower plate supporting portion 300a, so that the side plate of the boom 100 can be quickly fixed, and the productivity of the boom is greatly improved.

In addition, since the upper plate pressing and fixing unit 500 is operated in the push-pull direction in the horizontal direction, the position of the upper plate pressing and fixing unit 500 can be set quickly, and the productivity of the boom is greatly improved.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

1000: boom manufacturing apparatus 100: boom
200: base part 300: L-shaped support part
300a: lower plate supporting portion 300b: side plate supporting portion
400: Side plate pressing and fixing part 500: Upper plate pressing and fixing part

Claims (7)

1. A boom manufacturing apparatus for manufacturing a boom having a polygonal cross section,
A base for supporting the entire boom manufacturing apparatus;
A lower plate supporting part formed on an upper surface of the base part and supporting the lower plate of the boom;
A side plate supporter formed on the upper surface of the base portion to be perpendicular to the lower plate supporter and supporting one side plate of the boom;
A side plate pressing and fixing means formed on the side plate supporting portion and contacting with the other side plate of the boom as a side plate pressing member formed at one end, the side plate pressing member being movable in a horizontal direction and a vertical direction; And
A top plate pressing portion formed on an upper surface of the lower plate supporting portion and in contact with an upper plate of the boom with an upper plate pressing member formed at one end thereof and the upper plate pressing member being movable in a horizontal direction and a vertical direction,
The lower plate supporting portion and the side plate supporting portion are integrally formed as a single member,
Wherein the folded portion of the lower plate support portion and the side plate support portion further includes a recess portion for reducing a tolerance in manufacturing the boom,
The upper plate press-
A vertical vise extending in a vertical direction;
A support frame having a vice connecting part formed at one side thereof to surround an outer circumferential surface of the vertical vise; And
And a guide portion fixed to the side plate support portion and connected to the support frame to continuously guide the horizontal movement of the support frame,
Wherein the vise connecting portion is selectively openable so that the vertical vise can be released. The method according to claim 1,
Wherein a slide portion is formed on a lower surface of the side plate pressing and fixing portion and on a contact surface of the side plate pressing and fixing portion and the lower plate supporting portion so that the side plate press fixing portion slides in the horizontal direction on the upper surface of the lower plate supporting portion. 3. The method of claim 2,
The slide portion
And an inverted U-shaped rail portion formed on the side plate pressing and fixing portion side and opened downward,
On the upper surface of the lower plate supporting portion,
And an inverted T-shaped rail guide portion having an upwardly projecting portion is included. 3. The method of claim 2,
Wherein the side plate pressing and fixing portion includes a horizontal vise extending in a horizontal direction,
Wherein the vise is movable in a vertical direction. The method according to claim 1,
Wherein the support frame is formed to pass through the inner circumferential surface of the guide portion,
And operates in a push-pull manner along the guide of the guide portion. delete delete
KR1020170016936A 2017-02-07 2017-02-07 Apparatus for making a boom having a polygonal cross section KR101869818B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220060882A (en) * 2020-11-05 2022-05-12 (주)유창 Assembly jig for modular side
KR102632691B1 (en) * 2023-03-03 2024-02-01 이진규 reinforcing member welding jig for shaft coupling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100807311B1 (en) 2007-04-04 2008-03-03 이광래 Jig for crane boom assembly and process for producing capusing the same
KR20110015732A (en) * 2009-08-10 2011-02-17 에이테크솔루션(주) Jig for rolling test of gear
KR20110004189U (en) * 2009-10-21 2011-04-27 차창식 An industrial clamp which is able to adjust the width and height
KR101311218B1 (en) * 2012-09-11 2013-09-25 주식회사 호룡 Temporary automatic boom welding assembly device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100807311B1 (en) 2007-04-04 2008-03-03 이광래 Jig for crane boom assembly and process for producing capusing the same
KR20110015732A (en) * 2009-08-10 2011-02-17 에이테크솔루션(주) Jig for rolling test of gear
KR20110004189U (en) * 2009-10-21 2011-04-27 차창식 An industrial clamp which is able to adjust the width and height
KR101311218B1 (en) * 2012-09-11 2013-09-25 주식회사 호룡 Temporary automatic boom welding assembly device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220060882A (en) * 2020-11-05 2022-05-12 (주)유창 Assembly jig for modular side
KR102427547B1 (en) * 2020-11-05 2022-08-01 (주)유창 Assembly jig for modular side
KR102632691B1 (en) * 2023-03-03 2024-02-01 이진규 reinforcing member welding jig for shaft coupling

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