KR20110139571A - Transfer apparatus for laser welding head - Google Patents

Transfer apparatus for laser welding head Download PDF

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Publication number
KR20110139571A
KR20110139571A KR1020100059734A KR20100059734A KR20110139571A KR 20110139571 A KR20110139571 A KR 20110139571A KR 1020100059734 A KR1020100059734 A KR 1020100059734A KR 20100059734 A KR20100059734 A KR 20100059734A KR 20110139571 A KR20110139571 A KR 20110139571A
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KR
South Korea
Prior art keywords
head
welding head
fixed
laser welding
axis
Prior art date
Application number
KR1020100059734A
Other languages
Korean (ko)
Inventor
정권용
Original Assignee
(주)예스레이저
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)예스레이저 filed Critical (주)예스레이저
Priority to KR1020100059734A priority Critical patent/KR20110139571A/en
Publication of KR20110139571A publication Critical patent/KR20110139571A/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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE: A device for feeding laser welding head is provided to enable an operator to freely locate a laser welding head in a desire position using small effort. CONSTITUTION: A device for feeding laser welding head comprises a rising and falling part(10), a horizontal transfer part(20), a pivotal part(30) and a head mount(50). An ascent and descent cylinder(12) is installed inside the main body. The horizontal transfer part is pivotally connected to the ascent and descent cylinder. The horizontal transfer part is horizontally moved in an X-axis and Y-axis. The pivotal part is installed in the horizontal transfer part. An extension part(40) is installed in end of pivotal part using a rotary shaft. The head mount is fixed to the end of the extension part. The head mount moves the welding head up and down.

Description

Laser welding head feeder {TRANSFER APPARATUS FOR LASER WELDING HEAD}

The present invention relates to a laser welding head feeder, and more particularly, the operator can quickly and precisely move the laser welding head to the X-axis, Y-axis, Z-axis to improve the work stability and welding efficiency at the same time. The present invention relates to a laser welding head feeder.

In general, laser welding apparatus is an expensive laser equipment, the low operating efficiency is a disadvantage. In order to compensate for these disadvantages, a conventional laser welding apparatus has been disclosed, which is capable of welding a plurality of regions by moving a single laser welding head.

The laser welding head mounted on such a remote laser welding device is composed of an optical unit for focusing and a mirror for reflecting a beam guided by the optical unit to the welded portion, so that welding of several welded portions is possible by only one movement of the robot. Do.

On the other hand, in order to drive the conventional remote laser welding device efficiently, teaching the welding head precisely at the position to be welded is an important factor that determines the welding quality. 'Teaching' here refers to the task of quickly moving the welding head to be located at the start of the welding.

However, the teaching of the conventional laser welding head is difficult to move the head because the work is usually performed in a pair of two people, the work is cumbersome, the time required for teaching is long, there is a problem that the workability is inferior. In addition, when the Z-axis (focus) movement, the welded part is frequently deformed due to the operator's mistake, and the work is held by the worker, so that the welding quality is poor, resulting in poor welding quality.

In addition, the teaching of the remote laser welding head, unlike the normal laser welding head, is made to move the beam for welding while the robot is stationary. That is, the operator inputs the coordinate values of the X-axis, the Y-axis, and the Z-axis to the control unit, and the variable device operates according to the coordinate values to transfer the welding head. Therefore, the remote laser welding apparatus requires precise transfer control for each axis and rapid and precise transfer control for initial teaching work.

The present invention was created by the above needs, the operator can move the laser welding head quickly and precisely in the X-axis, Y-axis, Z-axis, the laser welding head transfer can improve the work stability and welding efficiency The purpose is to provide a device.

According to one embodiment of the present invention for achieving the above object, as a laser welding head feed device for welding is made while transferring the welding head portion mounted at one end, a lifting cylinder is installed inside the main body Strong part; A horizontal feeder rotatably connected to one end of the elevating cylinder and horizontally movable in X and Y axes; A turning part mounted on the horizontal conveying part and having an extension part mounted at a distal end through a rotation shaft; And fixed to the end of the extension, to provide a laser welding head transfer device comprising a head mounting portion for lifting up and down the welding head portion.

The horizontal conveying unit includes an upper plate on which the pivot is mounted, a lower plate on which the lifting cylinder is mounted, and a rail fixing plate positioned between the lower plate and the upper plate, and an L guide is installed on a lower surface of the upper plate. A pair of Y-axis rails are installed on the upper surface of the rail fixing plate, and the Y-axis movement of the upper plate is possible, an L guide is installed on the lower surface of the rail fixing plate, and a pair of X-axis is provided on the upper surface of the lower plate. A rail is installed, and the X-axis movement of the upper plate is possible.

The pivot may include a fixed end having the rotating shaft, a frame installed to be movable in a straight line from the fixed end and having the head mounting portion installed at an end thereof, and a damper connected between the fixed end and the frame.

The frame may be provided with a rail portion in a longitudinal direction, and the fixed end may be provided with an EL guide mounted on the rail portion.

A drive gear having a gear formed in a part of the rotating shaft of the revolving part is installed, one end of the cylinder is fixed to the horizontal conveying part, and the other end of the cylinder is engaged with the driving gear so that the revolving part has a predetermined radius by the driving force of the cylinder. It is preferable to rotate.

The head mounting part may include a bracket fixed to the end of the extension part, connected to the bracket via a rotating shaft, and a fixed end to which the head part is mounted.

The bracket may include a motor to move the head portion up and down, a transfer bolt connected to one side of the motor, and a movement bracket fixed along a portion of the head portion and fixed to a portion of the head portion.

According to the present invention, the operator can quickly position the welding head on the workpiece, and by arranging the conveying means on the X, Y, Z axis, it is possible to quickly position the welding head at the starting point of work with more precise and small force There is an effect that can improve the work efficiency.

In addition, the present invention has the effect that a more stable and detailed welding can be performed by the operator to place the welding head at the work start point and to drive each stepping motor installed on the X, Y, Z axis.

1 is a configuration diagram showing the configuration of a laser welding head feed apparatus according to an embodiment of the present invention;
Figure 2a is a plan view showing a horizontal conveying portion of the laser welding head feed apparatus according to an embodiment of the present invention,
Figure 2b is a side view 'A' direction of Figure 2a,
Figure 2c is a side view 'B' direction of Figure 2a,
3 is a configuration diagram showing a turning part and an extension part of the laser welding head feed device according to the embodiment of the present invention;
4 is a block diagram showing a head mounting portion of the laser welding head transfer apparatus according to an embodiment of the present invention, and
5 is an exemplary view showing an operating state of the laser welding head feed apparatus according to an embodiment of the present invention.

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

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the structure of the laser welding head feed apparatus which concerns on one Embodiment of this invention.

The laser welding head conveying apparatus of the present invention is composed of the elevating portion 10, the horizontal conveying portion 20, the turning portion 30, the extending portion 40, the head mounting portion 50, and the head portion 60.

In the above configuration, the elevating portion 10 is provided with a transport wheel 13 in the lower portion of the main body 16 for the free movement of the device.

In addition, a fixture 11 for preventing the device from being moved by the transfer wheel 13 is installed at the lower edge of the main body 16, and the horizontal transfer unit 20 is moved up and down inside the main body 16. The lifting lowering cylinder 12 is installed.

Here, the bellows 15 is mounted between the main body 16 and the horizontal transfer unit 20 to prevent the elevating cylinder 12 from being exposed to the outside.

Figure 2a is a plan view showing a horizontal conveying portion of the laser welding head feeder according to an embodiment of the present invention, Figure 2b is a side view 'A' direction of Figure 2a, Figure 2c is a side view 'B' direction of Figure 2a.

In the above configuration, the horizontal transfer section 20 is provided with a pair of X-axis rails 22 and Y-axis rails 21 intersecting each other on the base plate 29.

On the other hand, a rotation shaft 25 is formed in the center region where the X-axis rail 22 and the Y-axis rail 21 intersect, an upper plate 27a is installed on the upper portion of the rotation shaft 25, and a lower portion of the rotation shaft 25. The rotating plate 23 is installed. Accordingly, the upper plate 27a may be rotated at a predetermined radius in the fixed lower plate 27b of the base plate 29. In this case, a fixing lever 26 may be installed at the edge of the lower plate 27b to prevent free rotation of the rotating plate 23.

As shown in FIG. 2B, the L guides LM are respectively installed on the upper plate 27a, and the L guides LM are connected to the Y-axis rails 21. As a result, the L guide LM slides on the Y-axis rail 21, thereby allowing the upper plate 27a to move in the Y-axis direction. Here, the first electric motor M1 may be connected to the upper plate 27a to move the upper plate 27a by the driving force of the motor.

On the other hand, the Y-axis rail 21 is installed on the rail fixing plate 28a, and the lower guide of the rail fixing plate 28a is provided with an LM guide (LM; FIG. 2C), and the LM guide LM is an X-axis rail. Is moved at 22. Accordingly, the rail fixing plate 28a can be moved in the X-axis direction from the base plate 29. At this time, like the Y-axis rail 21, the second electric motor (M2) may be installed on the X-axis rail 22, thereby moving the rail fixing plate 28a by the driving force of the motor. On the other hand, the X-axis rail 22 may be installed on the rail fixing plate 28b installed on the upper surface of the rotating plate 23.

The horizontal feeder 20 having the above-described configuration is connected to the pivoting portion 30 (FIG. 1), and the pivoting portion 30 can be rotated by a predetermined radius through the rotating plate 23, and the X-axis rail 22. And the Y-axis rail 21 through the X-axis and the Y-axis in the direction of the rotational portion 30 can be freely moved, the movement to the fixed lever 26 may be limited.

3 is a configuration diagram showing a turning part and an extension part of the laser welding head transport apparatus according to an embodiment of the present invention, and FIG. 4 is a configuration diagram showing a head mounting part of the laser welding head transport apparatus according to an embodiment of the present invention. to be.

In the above configuration, the pivot portion 30 is a fixed end 31 formed in the main body 36 to be fixed to the main body 36 and the horizontal transfer unit 20, the cylinder 32 hinged to the fixed end 31 And a link member 33 having one end connected to the rod shaft of the cylinder 32 and the other end connected to the extension 40.

On the other hand, the main body 36 and the extension portion 40 is rotatably connected to a predetermined radius on the basis of the rotation axis (35). At this time, the rotation shaft 35 is provided with a drive gear 34 having a gear portion formed on the outer peripheral surface of the half arc shape. The gear part of the drive gear 34 is gear-connected with the rack gear 37 formed on one side of the link member 33. Accordingly, the linear motion of the link member 33 may be converted into a rotational motion of rotating the extension part 40 to a predetermined radius through the drive gear 34.

In the above configuration, the extension portion 40 is composed of a fixed end 46 and a frame 41 connected to the fixed end 46 and moved in the longitudinal direction. At this time, the head mounting portion 50 for mounting the head 60 (Fig. 1) is installed at the end of the frame 41, the head mounting portion 50 is a bracket 53 fixed to the end of the frame 41 And a mounting end 52 connected to the bracket 53 via a rotation shaft 51.

Specifically, the rails 41 are formed in the frame 41 in the longitudinal direction, and the fixed end 46 is provided with the LM guide LM, so that the frame 41 may be moved in the longitudinal direction from the fixed end 46. Can be. At this time, a damper 42 is installed between the fixed end 46 and the frame 41 to attenuate an impact caused by sudden movement of the frame 41.

That is, the frame 41 and the fixed end 46 are connected via a damper 42. The damper 42 adopts a product having an elastic force corresponding to the weight of the head 60 (Fig. 1). desirable. Accordingly, when the worker grips the handle 65 of the head portion 60 and moves it to the workpiece, the elastic force of the damper 42 and the load of the head portion 60 are balanced so that the operator easily makes the head portion. It is possible to move 60.

In addition, the head portion 60 may be mounted to the mounting end 52 of the extension portion 40, the fixed lever 55 to prevent the flow of the rotation shaft 51 on the rotary shaft 51 of the extension portion 40 Is installed.

On the other hand, the head portion 60 is composed of a lifting device 62 and a head body 63, a part of which is fixed to the mounting end 52. Here, the elevator 62 includes a stepping motor 61 and a transfer bolt 64 connected to the stepping motor 61, and includes a moving bracket 67 that moves up and down along the transfer bolt 64. Is done. Accordingly, the elevator 62 is moved up and down due to the driving of the stepping motor 61, so that the head portion 60 can be moved up and down.

The head body 63 may be provided with a handle 65 for holding the operator on the side. Accordingly, the operator can grip the handle 65 to freely move the head body 63 up, down, left, and right.

5 is an exemplary view showing an operating state of the laser welding head feed apparatus according to an embodiment of the present invention.

Laser welding head conveying apparatus of the present invention having the above-described configuration is easy to move the place through the transfer wheel 13, after moving the device, it can be fixed to the ground through the fixture (11).

In addition, the user can grip the handle 65 of the head 60 to move the head 60 to the worktable side. At this time, the height adjustment of the head 60 is possible by operating the lifting cylinder 12 of the lifting unit 10. In addition, it is possible to manually adjust the height and angle of the head portion 60 through the rotating plate 23 and the extension portion 40 of the horizontal feeder 20.

In this way, the operator can position the head body 63 on the welding target region by bringing the head portion 60 close to the workpiece. In addition, the operator can match the laser focus of the head body 63 to the start point of work through the optical portion, and can be fixed to the position through the respective fixing lever (26, 25). At this time, the fine movement can be made automatically through the stepping motor disposed on each axis.

In such a state, when the operator instructs the work to be performed through the controller, the turning unit 30 and the extension unit 40 according to the set program of the motors M1 and M2 of the X and Y axes of the horizontal transfer unit 20. The welding is performed by transporting the on a plane. At this time, the stepping motor 61 (Fig. 4) of the head portion 60 can also be operated, so that precise welding operation can be made by automatically controlling the transfer of the Z-axis (focus and height adjustment).

In the laser welding head feeder of the present invention, the user first moves the head portion 60 to the workpiece quickly to accurately position the laser irradiation portion at a welding start point, and then drives the stepping motors of the X, Y, and Z axes. It is possible to improve welding quality by performing precise feeding control.

While the present invention has been particularly shown and described with reference to the particular embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: lifting section 11: fixture
12: lifting cylinder 15: bellows
20: horizontal feed section 21: Y-axis rail
22: X-axis rail 23: rotating plate
26: fixed lever 27a: top plate
27b: bottom plate 29: base plate
30: turning part 31: fixed end
32: cylinder 35: axis of rotation
36: main body 37: rack gear
40: extension part 42: damper
50: head mounting portion 60: head portion

Claims (6)

A laser welding head feed device for welding while transferring a welding head mounted at one end at a constant speed,
A lifting unit provided with a lifting cylinder inside the main body;
A horizontal feeder rotatably connected to one end of the elevating cylinder and horizontally movable in X and Y axes;
A turning part mounted on the horizontal conveying part and having an extension part mounted at a distal end through a rotation shaft; And
Fixed to the end of the extension portion, the laser welding head transfer device comprising a head mounting portion for lifting up and down the welding head portion. The method of claim 1,
The horizontal transfer unit,
A top plate on which the pivot is mounted,
A lower plate on which the elevating cylinder is mounted, and
A rail fixing plate positioned between the lower plate and the upper plate,
An EL guide is installed on the lower surface of the upper plate, and a pair of Y-axis rails are installed on the upper surface of the rail fixing plate, and the Y-axis movement of the upper plate is possible.
An EL guide is installed on the lower surface of the rail fixing plate, and a pair of X-axis rails are installed on the upper surface of the lower plate, so that the X-axis movement of the upper plate is possible. The method according to claim 1 or 2,
The turning part,
A fixed end formed with the rotating shaft,
A frame which is installed to be movable in a straight line at the fixed end and at which the head mounting portion is installed;
And a damper connected between the fixed end and the frame. The method of claim 3,
The frame is provided with a rail in the longitudinal direction,
Laser fixed head transfer apparatus characterized in that the fixed end is provided with an EL guide mounted on the rail. The method of claim 3,
The rotating shaft of the turning part is provided with a drive gear formed with a gear,
One end of the cylinder is fixed to the horizontal transfer part, the other end of the cylinder is engaged with the drive gear,
And a turning part rotates at a predetermined radius by the driving force of the cylinder. The method of claim 1,
The head mounting portion,
Bracket fixed to the end of the extension,
A fixed end connected to the bracket and the rotating shaft and mounted with the welding head;
The bracket is provided with a motor for providing a driving force to move the welding head portion up and down, a transfer bolt connected to one side of the motor, and a moving bracket fixed along a portion of the head portion is installed along the transfer bolt. Laser welding head feeder.
KR1020100059734A 2010-06-23 2010-06-23 Transfer apparatus for laser welding head KR20110139571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100059734A KR20110139571A (en) 2010-06-23 2010-06-23 Transfer apparatus for laser welding head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100059734A KR20110139571A (en) 2010-06-23 2010-06-23 Transfer apparatus for laser welding head

Publications (1)

Publication Number Publication Date
KR20110139571A true KR20110139571A (en) 2011-12-29

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Application Number Title Priority Date Filing Date
KR1020100059734A KR20110139571A (en) 2010-06-23 2010-06-23 Transfer apparatus for laser welding head

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358257B1 (en) * 2013-10-30 2014-02-06 최종성 The mask frame to the side of the vertical laser marking information in the marking device
KR20230012165A (en) * 2021-07-15 2023-01-26 주식회사 삼인이엔지 Load balance auto control type positioning apparatus
CN117381151A (en) * 2023-10-25 2024-01-12 山东森峰激光装备有限公司 Hand-held type laser processing head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358257B1 (en) * 2013-10-30 2014-02-06 최종성 The mask frame to the side of the vertical laser marking information in the marking device
KR20230012165A (en) * 2021-07-15 2023-01-26 주식회사 삼인이엔지 Load balance auto control type positioning apparatus
CN117381151A (en) * 2023-10-25 2024-01-12 山东森峰激光装备有限公司 Hand-held type laser processing head
CN117381151B (en) * 2023-10-25 2024-03-15 山东森峰激光装备有限公司 Hand-held type laser processing head

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