KR20140137695A - 2-axis positioner structure for arc welding - Google Patents

2-axis positioner structure for arc welding Download PDF

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Publication number
KR20140137695A
KR20140137695A KR1020130058519A KR20130058519A KR20140137695A KR 20140137695 A KR20140137695 A KR 20140137695A KR 1020130058519 A KR1020130058519 A KR 1020130058519A KR 20130058519 A KR20130058519 A KR 20130058519A KR 20140137695 A KR20140137695 A KR 20140137695A
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KR
South Korea
Prior art keywords
positioner
axis
shaft
shaft rotating
arm
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KR1020130058519A
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Korean (ko)
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KR102050106B1 (en
Inventor
박정용
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현대중공업 주식회사
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Priority to KR1020130058519A priority Critical patent/KR102050106B1/en
Publication of KR20140137695A publication Critical patent/KR20140137695A/en
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    • 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
    • B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
    • 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
    • B23K9/32—Accessories

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Manipulator (AREA)

Abstract

The present invention relates to a two-axis positioner structure for arc welding, which comprises a first positioner (10) having a first axis rotary arm (11) which is pivoted about a horizontal axis along the left and right direction, A shaft rotating base 20 connected to the first shaft rotating arm 11 and having one end connected to the other end thereof while the other end of the shaft rotating base 20 is kept horizontal with the bottom surface 5a; A second positioner 30 having a second shaft rotatable arm 31 which is arranged to rotate about a vertical axis along a vertical direction and a second positioner 30 which is connected to the other end of the shaft rotary base 20, And a shaft rotation support base 50 for supporting the shaft rotation of the slave shaft rotation arm 40. The driven shaft 40 is rotatably supported by the driven shaft 40,
Therefore, a pair of one-axis positioners that are rotated about a single rotation axis are provided, and the two-axis positioner is spaced sufficiently apart from each other through the shaft rotation base, and sufficient clearance is provided between the axis rotation base and the bottom surface, And a two-axis positioner structure rotatable with respect to the vertical axis. Thus, the balance weight can be installed basically, thereby improving work safety. In addition, the function of the two-axis positioner can be realized by using single-axis positioners So that it is possible to improve the usability and compatibility of the apparatus.

Description

[0001] The present invention relates to a two-axis positioner structure for arc welding,

[0001] The present invention relates to a two-axis positioner structure for arc welding, and more particularly, to a two-axis positioner structure for an arc welding, in which a pair of one-axis positioners rotated about a single rotation axis are provided, By providing a two-axis positioner structure that rotates about the horizontal axis and the vertical axis while maintaining a sufficient space between the axis-rotating base and the bottom surface, the balance weight can be basically installed, Axis positioner structure using single-axis positioners as well as a dual-axis positioner structure for arc welding which can improve the usability and compatibility of the two-axis positioner.

Generally, a welding robot refers to a device capable of automatically welding an object to be welded.

Such a welding robot itself is further provided with a positioner for automatically rotating the welding robot to perform a welding operation while rotating the welding object appropriately.

Such a positioner is usually a one-axis positioner that is rotated about any one of axes, that is, a horizontal axis that is normally horizontal in the left-right direction or a vertical axis that is vertical to the vertical direction. Is called a two-axis positioner.

For example, the conventional two-axis positioner includes a horizontal rotary shaft portion that is pivoted in a horizontal direction and axially rotated between a pair of vertically disposed shaft supports spaced apart from each other by a predetermined distance, And a vertical rotation axis portion that is rotated about a vertical axis.

The two-axis positioner can horizontally rotate the horizontal rotary shaft after mounting the welding object on the vertical rotary shaft, move the welding object on the vertical rotary shaft to a desired position, and the vertical rotary part rotates the object The position of the object to be welded with respect to the biaxial direction can be smoothly selected.

 However, in the conventional two-axis positioner, since the horizontal rotation axis portion and the vertical rotation axis portion are integrally disposed on a single body, due to the structural problem that the horizontal rotation axis portion and the vertical rotation axis portion are inevitably disposed close to each other There is a problem that it is difficult to have a sufficient clearance space on the opposite side of the vertical rotary shaft portion and thus the installation of the balance weight on the opposite side of the vertical rotary shaft portion becomes difficult.

In addition, since it is a two-axis integral type structure, it is basically costly to manufacture, and the utilization aspect of the uniaxial positioner is not taken into consideration at all, so that the availability and compatibility of the equipment in the field are considerably deteriorated there was.

Korean Patent Publication No. 10-2012-0042703

SUMMARY OF THE INVENTION The present invention has been conceived to solve such a problem, and it is an object of the present invention to provide a pair of single-axis positioners that are pivoted about a single pivot shaft, The balance weight can be installed basically by making the two-axis positioner structure rotate about the horizontal axis and the vertical axis while providing a sufficient space between the bottom surfaces. Thus, the safety of the balance weight can be improved, Axis positioner structure capable of realizing the functions of a two-axis positioner using positioners and improving the usability and compatibility of the two-axis positioner.

In order to accomplish the above object, according to the present invention, there is provided a two-axis positioner structure for arc welding, comprising: a first positioner having a first axis rotary arm that is axially rotated about a horizontal axis along a lateral direction; A first shaft rotatable arm of the first positioner is connected to one end of the first shaft rotatable arm and the other end of the first positioner is horizontally aligned with the bottom surface of the shaft rotatable base; A second positioner disposed on the upper surface of the shaft rotating base and having a second shaft rotating arm that is rotated about a vertical axis along a vertical direction; A slave shaft rotating arm connected to the other end of the shaft rotating base and rotated in an axial direction corresponding to the shaft rotating of the shaft rotating base; And an axis rotation support base for supporting the axis rotation of the driven shaft rotation arm.

Further, in the two-axis positioner structure for arc welding according to an embodiment of the present invention, the shaft rotation base is disposed at a predetermined height above the bottom surface so as to have a sufficient distance between the bottom surface and the bottom surface of the shaft rotation base, And a pedestal may be further provided on the bottom surface of the first positioner so that the first positioner corresponding to the first positioner is located above the predetermined height.

In addition, in the two-axis positioner structure for arc welding according to an embodiment of the present invention, a balance weight may be further provided so as to maintain a balance of the offset load of the object to be welded provided above the second positioner.

Further, in the two-axis positioner structure for arc welding according to an embodiment of the present invention, a plurality of balance weights may be disposed on the bottom surface side of the shaft rotating base.

Also, in the two-axis positioner structure for arc welding according to an embodiment of the present invention, the plurality of balance weights may be disposed on the bottom surface of the shaft rotating base corresponding to both sides thereof with respect to the second positioner have.

As described above, the two-axis positioner structure for arc welding according to the present invention includes a pair of single-axis positioners that are pivoted about a single pivot axis, and are spaced sufficiently apart from each other with a pivot base interposed therebetween, The balance weight can be installed basically by providing a two-axis positioner structure that rotates with respect to each of the horizontal axis and the vertical axis while providing a sufficient space between the rotating base and the bottom surface. Of course, the functions of the two-axis positioner can be implemented by using single-axis positioners, thereby improving the usability and compatibility of the apparatus.

1 is a perspective view illustrating a two-axis positioner structure for arc welding according to an embodiment of the present invention.
FIG. 2 is a perspective view of the two-axis positioner structure for arc welding according to one embodiment of the present invention, viewed from the opposite direction.
3 is a front view showing a two-axis positioner structure for arc welding according to an embodiment of the present invention.
FIG. 4 is a schematic view showing a state in which a shaft rotating base is rotated by a shaft rotation of a first positioner in a two-axis positioner structure for arc welding according to an embodiment of the present invention.
FIG. 5 is a schematic view showing a state in which an object to be welded is rotated by an axial rotation of a second positioner in a two-axis positioner structure for arc welding according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, a two-axis positioner structure for arc welding according to an embodiment of the present invention includes a first positioner (not shown) having a first axis rotary arm 11 that is axially rotated about a horizontal axis along a left- And a first shaft rotatable arm 11 of the first positioner 10 is connected to one end of the first shaft rotatable arm 11 and the other end of the shaft rotatable base 20 A second positioner 30 disposed on the upper surface of the shaft rotating base 20 and having a second shaft rotating arm 31 that is rotated about a vertical axis along the vertical direction, A slave shaft rotating arm 40 connected to the other end and being pivotally rotated in correspondence with the shaft rotation of the shaft rotating base 20 and an axis rotating supporter 50 for supporting the shaft rotation of the slave shaft rotating arm 40, As shown in Fig.

The shaft rotating base 20 is disposed at a predetermined height above the bottom surface so as to have a sufficient distance between the bottom surface of the shaft rotating base 20 and the bottom surface 5a for installing the balance weight 70, A pedestal 70 is provided on the bottom surface of the first positioner 10 so that the corresponding first positioner 10 is positioned above a certain height.

A balance weight 70 is provided on the bottom surface of the shaft rotating base 20 so as to maintain a balance of the object to be welded 35 provided above the second positioner 30.

A plurality of balance weights 70 are disposed on the bottom surface of the shaft rotating base 20, and in particular, the plurality of balance weights 70 are disposed on both sides of the second positioner 30 Is disposed on the bottom surface of the shaft rotating base (20).

The balance weight 70 is provided on the bottom surface of the first shaft rotary arm 11 or the slave shaft rotary arm 40 other than the bottom surface of the shaft rotary base 70 within a range satisfying the balance holding function for the offset load .

The balance weight 70 may be installed on the bottom surface of the shaft base 20 by various known installation methods such as a fastening method using a fastener or a bonding method using a magnet or the like.

Reference numeral 5 denotes a work table on which the bottom surface is flat so that the shaft support base 50 and the pedestal 60 are installed and the bottom surface of the shaft base 20 is horizontal.

The two-axis positioner structure for arc welding according to one embodiment of the present invention has a balance weight 70 having an appropriate weight on the bottom surface of the shaft rotating base 20 corresponding to both sides of the second positioner 30 Respectively.

Then, the welding object 35 is mounted on the upper surface of the second positioner 30. At this time, a welding robot (not shown) is disposed above the welding object 35.

In this state, the welding operation of the welding robot is performed with respect to the welding object 35, and the corresponding part of the welding object 35, to which the welding robot does not touch, is rotated by an appropriate rotation of the positioners 10, 35 are smoothly welded.

When the welding robot does not touch the outer circumferential portion of the welding object 35 along the vertical direction, the first positioner 10 is operated to move the first axis rotary arm 11 are rotated in the axial direction, the driven shaft rotary arm 40, which is disposed on the opposite side of the rotary shaft 40, is also rotated to rotate the shaft rotating base 20 in a desired direction. As a result, So that the welding robot can be rotated and moved axially.

When the welding robot does not touch the outer peripheral portion of the welding object 35 along the left and right direction, the second positioner 30 is operated to rotate the second axis rotary arm 31, The corresponding portion of the welding rod 35 is axially rotated by the welding robot so that the welding operation can be performed quickly and accurately.

 As described above, the two-axis positioner structure for arc welding according to an embodiment of the present invention includes a pair of one-axis positioners that are pivoted about a single rotation axis, and are spaced sufficiently apart from each other The balance weight can be installed basically by making the two-axis positioner structure rotatable about the horizontal axis and the vertical axis with sufficient spacing between the shaft rotation base and the bottom surface, It is possible to realize the functions of the two-axis positioner by using single-axis positioners, thereby improving the usability and compatibility of the apparatus.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It should be understood that all of the techniques that can be easily changed and used by those skilled in the art are included in the technical scope of the present invention.

DESCRIPTION OF REFERENCE NUMERALS
5: work table 5a: bottom surface
10: first positioner 11: first shaft rotating arm
20: Axis rotation base 30: Second positioner
31: Second shaft rotary arm 40: Secondary shaft rotary arm
50: Axis rotation support 60: Base
70: Balance weight

Claims (5)

A first positioner having a first axis rotary arm that is axially rotated with respect to a horizontal axis along the lateral direction;
A first shaft rotatable arm of the first positioner is connected to one end of the first shaft rotatable arm and the other end of the first positioner is horizontally aligned with the bottom surface of the shaft rotatable base;
A second positioner disposed on the upper surface of the shaft rotating base and having a second shaft rotating arm that is rotated about a vertical axis along a vertical direction;
A slave shaft rotating arm connected to the other end of the shaft rotating base and rotated in an axial direction corresponding to the shaft rotating of the shaft rotating base; And
An axis rotation support member for supporting an axis rotation of the driven shaft rotation arm;
Axis positioner structure for arc welding. The method according to claim 1,
The shaft rotating base is disposed at a predetermined height above the bottom surface so as to have a sufficient distance between the bottom surface and the bottom surface of the shaft rotating base,
And a pedestal is further provided on a bottom surface of the first positioner so that the first positioner corresponding to the first positioner is positioned above a predetermined height. 3. The method of claim 2,
Further comprising a balance weight for maintaining a balance between the offset loads of the object to be welded provided above the second positioner. The method of claim 3,
And a plurality of balance weights are disposed on a bottom surface side of the shaft rotating base. 5. The method of claim 4,
Wherein the plurality of balance weights are disposed on the bottom surface of the shaft rotating base corresponding to both sides of the second positioner with respect to the second positioner.






KR1020130058519A 2013-05-23 2013-05-23 2-axis positioner structure for arc welding KR102050106B1 (en)

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KR1020130058519A KR102050106B1 (en) 2013-05-23 2013-05-23 2-axis positioner structure for arc welding

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Application Number Priority Date Filing Date Title
KR1020130058519A KR102050106B1 (en) 2013-05-23 2013-05-23 2-axis positioner structure for arc welding

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KR20140137695A true KR20140137695A (en) 2014-12-03
KR102050106B1 KR102050106B1 (en) 2019-11-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102104115B1 (en) 2019-10-16 2020-05-29 주식회사 건화 Positioner to guide the position and posture of the workpiece and method for controlling position and posture of the workpiece using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980044593A (en) * 1996-12-07 1998-09-05 김정국 Shea key welding device of large tubular pile
KR20120042703A (en) 2010-10-25 2012-05-03 탈레스 Triaxial positioner for an antenna
KR101143747B1 (en) * 2010-03-11 2012-05-11 한전케이피에스 주식회사 Welding positioner for the machine welding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980044593A (en) * 1996-12-07 1998-09-05 김정국 Shea key welding device of large tubular pile
KR101143747B1 (en) * 2010-03-11 2012-05-11 한전케이피에스 주식회사 Welding positioner for the machine welding
KR20120042703A (en) 2010-10-25 2012-05-03 탈레스 Triaxial positioner for an antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102104115B1 (en) 2019-10-16 2020-05-29 주식회사 건화 Positioner to guide the position and posture of the workpiece and method for controlling position and posture of the workpiece using the same

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